Liste des publications issues de travaux ayant bénéficié des ressources du mésocentre
2026
Hippolyte Lerogeron; Vincent Faucher; Pierre Boivin; Julien Favier
LBM-based partitioned coupling for fast transient fluid-structure dynamics Article de journal
Dans: Applied Mathematical Modelling, vol. 149, 2026, ISSN: 0307-904X.
@article{Lerogeron2026b,
title = {LBM-based partitioned coupling for fast transient fluid-structure dynamics},
author = {Hippolyte Lerogeron and Vincent Faucher and Pierre Boivin and Julien Favier},
doi = {10.1016/j.apm.2025.116274},
issn = {0307-904X},
year = {2026},
date = {2026-01-01},
journal = {Applied Mathematical Modelling},
volume = {149},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2025
Simone Bonfrate; Nicolas Ferré; Miquel Huix-Rotllant
Efficient Free Energies from a Simplified Electrostatic Embedding QM/MM Approach Based on Electrostatic Potential Fitted Operators Article de journal
Dans: J. Chem. Inf. Model., 2025, ISSN: 1549-960X.
@article{Bonfrate2025b,
title = {Efficient Free Energies from a Simplified Electrostatic Embedding QM/MM Approach Based on Electrostatic Potential Fitted Operators},
author = {Simone Bonfrate and Nicolas Ferré and Miquel Huix-Rotllant},
doi = {10.1021/acs.jcim.5c01563},
issn = {1549-960X},
year = {2025},
date = {2025-08-26},
journal = {J. Chem. Inf. Model.},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Adrián López‐Francés; Jessica Rodrigues; Stéphane Humbel; Jean Rodriguez; Muriel Amatore; Thierry Constantieux
Rational Control of C–N Axial Chirality in Bis‐Pentatomic N‐Pyrazolyl Maleimides through an Experimental and Computational Approach Article de journal
Dans: Eur J Org Chem, vol. 28, no. 31, 2025, ISSN: 1099-0690.
@article{López‐Francés2025,
title = {Rational Control of C–N Axial Chirality in \textit{Bis}‐Pentatomic \textit{N}‐Pyrazolyl Maleimides through an Experimental and Computational Approach},
author = {Adrián López‐Francés and Jessica Rodrigues and Stéphane Humbel and Jean Rodriguez and Muriel Amatore and Thierry Constantieux},
doi = {10.1002/ejoc.202500485},
issn = {1099-0690},
year = {2025},
date = {2025-08-22},
journal = {Eur J Org Chem},
volume = {28},
number = {31},
publisher = {Wiley},
abstract = {The control of axial chirality in atropisomeric compounds has gained significant importance in modern synthetic chemistry due to their relevance in the design of materials and biologically active molecules. The study investigates the configurational stability of a series of axially chiral N ‐pyrazolyl maleimides through a combined theoretical and experimental approach. Initially, density functional theory (DFT) computations are used to predict the corresponding barriers to enantiomerisation of multiple derivatives holding a large variety of substituents at different positions of both heterocyclic nuclei on either side of the CN bond. Then, the predicted barriers are validated through dynamic chiral high performance liquid chromatography analysis, providing experimental evidence for the configurational stability of these challenging bis ‐pentatomic C–N atropisomers. Compounds featuring a 1‐N ‐t ‐butyl group as well as a C‐4‐substituent on the aminopyrazole ring exhibit high barriers to enantiomerisation, confirming their potential as a new family of atropisomerically stable heterocyclic compounds. Variation of the substitution on the maleimide nucleus has no significant influence on the overall configurational stability. The good correlation between theoretical predictions and experimental findings highlights the strength of the DFT computations in predicting configurational stability of chiral N ‐pyrazolyl maleimides, providing a predictive framework for designing new atropisomeric N ‐pyrazolyl maleimides with restricted rotation around the CN bond. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jiyang He; Benjamin Favier; Stéphane Le Dizès
Internal shear layers generated by a vertically oscillating cylinder in unbounded and bounded rotating fluids Article de journal
Dans: J. Fluid Mech., vol. 1015, 2025, ISSN: 1469-7645.
@article{He2025,
title = {Internal shear layers generated by a vertically oscillating cylinder in unbounded and bounded rotating fluids},
author = {Jiyang He and Benjamin Favier and Stéphane Le Dizès},
doi = {10.1017/jfm.2025.10237},
issn = {1469-7645},
year = {2025},
date = {2025-07-22},
journal = {J. Fluid Mech.},
volume = {1015},
publisher = {Cambridge University Press (CUP)},
abstract = {In rotating fluids, the viscous smoothing of inviscid singular inertial waves leads to the formation of internal shear layers. In previous works, we analysed the internal shear layers excited by a viscous forcing (longitudinal libration) in a spherical shell geometry (He et al. , 2022 J. Fluid Mech. 939 , A3; He et al. , 2023 J. Fluid Mech. 974 , A3). We now consider the stronger inviscid forcing corresponding to the vertical oscillation of the inner boundary. We limit our analysis to two-dimensional geometries but examine three different configurations: freely propagating wave beams in an unbounded domain and two wave patterns (a periodic orbit and an attractor) in a cylindrical shell geometry. The asymptotic structures of the internal shear layers are assumed to follow the similarity solution of Moore & Saffman (1969 Phil. Trans. R. Soc. Lond. A , 264 , 597–634) in the small viscous limit. The two undefined parameters of the similarity solution (singularity strength and amplitude) are derived by asymptotically matching the similarity solution with the inviscid solution. For each case, the derivation of the latter is achieved either through separation of variables combined with analytical continuation or the method of characteristics. Global inviscid solutions, when obtained, closely match numerical solutions for small Ekman numbers far from the critical lines, while viscous asymptotic solutions show excellent performance near those lines. The amplitude scalings of the internal shear layers excited by an inviscid forcing are found to be divergent as the Ekman number
$E$
decreases, specifically
$O(E^{-1/6})$
for the critical-point singularity and
$O(E^{-1/3})$
for attractors, in contrast to the convergent scalings found for a viscous forcing. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
$E$
$O(E^{-1/6})$
$O(E^{-1/3})$
Antoine Domain; Guishun Bai; Juan‐Carlos Castillo; Hassane Moussa Abdraman; Stéphane Humbel; Michel Giorgi; Jean‐Valère Naubron; Sara Chentouf; Jean Rodriguez; Xiaoze Bao; Damien Bonne
Stereocontrol in Conformationally Stable C(sp2)─C(sp3) Atropisomers Article de journal
Dans: Angew Chem Int Ed, vol. 64, no. 28, 2025, ISSN: 1521-3773.
@article{Domain2025,
title = {Stereocontrol in Conformationally Stable C(sp^{2})─C(sp^{3}) Atropisomers},
author = {Antoine Domain and Guishun Bai and Juan‐Carlos Castillo and Hassane Moussa Abdraman and Stéphane Humbel and Michel Giorgi and Jean‐Valère Naubron and Sara Chentouf and Jean Rodriguez and Xiaoze Bao and Damien Bonne},
doi = {10.1002/anie.202506810},
issn = {1521-3773},
year = {2025},
date = {2025-07-07},
journal = {Angew Chem Int Ed},
volume = {64},
number = {28},
publisher = {Wiley},
abstract = {Abstract We report a two‐step sequence for the enantioselective construction of a rare family of stable C(sp2 )─C(sp3 ) atropisomers featuring two additional stereogenic centers. The process begins with an organocatalyzed dihydrobenzofurannulation that establishes and controls the stereochemistry of two carbon centers, followed by a highly diastereoselective functionalization that significantly enhances the barrier to diastereomerization of the C(sp2 )─C(sp3 ) bond, effectively locking and stabilizing its configuration. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A.F. Bósio; I.L. Caldas; R.L. Viana; Y. Elskens
Identifying ballistic modes via Poincaré sections Article de journal
Dans: Communications in Nonlinear Science and Numerical Simulation, vol. 145, 2025, ISSN: 1007-5704.
@article{Bósio2025,
title = {Identifying ballistic modes via Poincaré sections},
author = {A.F. Bósio and I.L. Caldas and R.L. Viana and Y. Elskens},
doi = {10.1016/j.cnsns.2025.108722},
issn = {1007-5704},
year = {2025},
date = {2025-06-01},
journal = {Communications in Nonlinear Science and Numerical Simulation},
volume = {145},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fan Yang; Marie-Christine Record; Pascal Boulet
Dans: Renewable Energy, vol. 245, 2025, ISSN: 0960-1481.
@article{Yang2025,
title = {Self-defined monolayers, bilayers and trilayers of two-dimensional Janus MoSSe and Ga2SSe van der Waals homojunctions as potential photocatalysts for overall water splitting},
author = {Fan Yang and Marie-Christine Record and Pascal Boulet},
doi = {10.1016/j.renene.2025.122829},
issn = {0960-1481},
year = {2025},
date = {2025-06-01},
journal = {Renewable Energy},
volume = {245},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Willem E. A. Verplanke; Zoltan Fodor; Antoine Gérardin; Jana N. Guenther; Laurent Lellouch; Kalman K. Szabo; Balint C. Toth; Lukas Varnhorst
Lattice QCD calculation of the η and η' meson masses at the physical point using rooted staggered fermions Article de journal
Dans: Phys. Rev. D, iss. 111, p. 9, 2025.
@article{PhysRevD.111.094506,
title = {Lattice QCD calculation of the η and η' meson masses at the physical point using rooted staggered fermions},
author = {Willem E. A. Verplanke and Zoltan Fodor and Antoine Gérardin and Jana N. Guenther and Laurent Lellouch and Kalman K. Szabo and Balint C. Toth and Lukas Varnhorst},
doi = {10.1103/PhysRevD.111.094506},
year = {2025},
date = {2025-05-07},
urldate = {2025-05-07},
journal = {Phys. Rev. D},
issue = {111},
pages = {9},
publisher = {May},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Matheus J. Lazarotto; Iberê L. Caldas; Yves Elskens
Hamiltonian chaos for one particle with two waves: Self-consistent dynamics Article de journal
Dans: vol. 35, no. 5, 2025, ISSN: 1089-7682.
@article{Lazarotto2025,
title = {Hamiltonian chaos for one particle with two waves: Self-consistent dynamics},
author = {Matheus J. Lazarotto and Iberê L. Caldas and Yves Elskens},
doi = {10.1063/5.0261013},
issn = {1089-7682},
year = {2025},
date = {2025-05-01},
volume = {35},
number = {5},
publisher = {AIP Publishing},
abstract = {A simple model of wave-particle interaction is studied in its self-consistent form, that is, where the particles are allowed to feedback on the wave dynamics. We focus on the configurations of locked solutions (equilibria) and how the energy-momentum exchange mechanism induces chaos in the model. As we explore the system, we analyze the mathematical structure that gives rise to locked states and how the model’s non-linearity enables multiple equilibrium amplitudes for waves. We also explain the predominance of regularity as we vary the control parameters and the mechanism behind the emergence of chaos under limited parameter choices. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Simone Bonfrate; Woojin Park; Dulce Trejo‐Zamora; Nicolas Ferré; Cheol Ho Choi; Miquel Huix‐Rotllant
Assessment of Free Energies From Electrostatic Embedding Density Functional Tight Binding‐Based/Molecular Mechanics in Periodic Boundary Conditions Article de journal
Dans: J Comput Chem, vol. 46, no. 11, 2025, ISSN: 1096-987X.
@article{Bonfrate2025,
title = {Assessment of Free Energies From Electrostatic Embedding Density Functional Tight Binding‐Based/Molecular Mechanics in Periodic Boundary Conditions},
author = {Simone Bonfrate and Woojin Park and Dulce Trejo‐Zamora and Nicolas Ferré and Cheol Ho Choi and Miquel Huix‐Rotllant},
doi = {10.1002/jcc.70107},
issn = {1096-987X},
year = {2025},
date = {2025-04-30},
journal = {J Comput Chem},
volume = {46},
number = {11},
publisher = {Wiley},
abstract = {ABSTRACT Electrostatic embedding quantum mechanics/molecular mechanics (QM/MM) methods in periodic boundary conditions (PBC) can successfully describe the condensed phase reactivity of a fragment treated at the QM level with an atomistic description of an electrostatic environment treated at the MM level. The computational cost of ab initio QM methods limits the phase space sampling, thus affecting statistical quantities like free energies. Here, we describe the implementation of a PBC‐adapted QM/MM model based on the semi‐empirical density‐functional based tight‐binding (DFTB) method within the GAMESS‐US quantum package interfaced with Tinker. Further, we take advantage of the free energy methods provided by a newly developed interface with the PLUMED plugin. The versatility of the implementation is illustrated by the prediction of the free energy profile for three different families of reactions in solution. Overall, using the DFTB/MM, it has been possible to obtain results that are at least in a qualitatively agreement with respect to the experimental data or high‐level ab initio simulations. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jonathan Amodeo; Emeric Bourasseau
Influence of point defect concentration on the generalized stacking‐fault energy in uranium dioxide Article de journal
Dans: J Am Ceram Soc., vol. 108, no. 9, 2025, ISSN: 1551-2916.
@article{Amodeo2025,
title = {Influence of point defect concentration on the generalized stacking‐fault energy in uranium dioxide},
author = {Jonathan Amodeo and Emeric Bourasseau},
doi = {10.1111/jace.20572},
issn = {1551-2916},
year = {2025},
date = {2025-04-16},
journal = {J Am Ceram Soc.},
volume = {108},
number = {9},
publisher = {Wiley},
abstract = {<jats:title>Abstract</jats:title><jats:p>Stacking‐fault energy is a fundamental material property that significantly affects the shearability of crystalline materials by influencing the behavior of dislocations. Here, the impact of point defects on the stacking‐fault energy in nuclear fuel is investigated using a large‐set of molecular statics simulations combined to statistical analysis. A focus is made on the excess stacking‐fault energy induced by uranium Frenkel pairs usually produced during high‐temperature irradiation, in the main slip systems of the fluorite structure. The results show quantitative changes of the stacking‐fault energy that can vary up to several hundreds with point defect content, what might significantly influence dislocation core, mobility and more broadly, the mechanical behavior of the material. These results highlight the crossed link of point defects upon nuclear fuel mechanics and pave the way for further investigations into dislocation‐point defect interactions, particularly in the context of high‐temperature nuclear fuel applications.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shuai Wang; Anne-Sophie Dubarry; Valérie Chanoine; Julien Sein; Jean-Luc Anton; Bruno Nazarian; Manuel R. Mercier; Agnès Trébuchon; Chotiga Pattamadilok
Revealing the co-existence of written and spoken language coding neural populations in the visual word form area Article de journal
Dans: vol. 3, 2025, ISSN: 2837-6056.
@article{Wang2025,
title = {Revealing the co-existence of written and spoken language coding neural populations in the visual word form area},
author = {Shuai Wang and Anne-Sophie Dubarry and Valérie Chanoine and Julien Sein and Jean-Luc Anton and Bruno Nazarian and Manuel R. Mercier and Agnès Trébuchon and Chotiga Pattamadilok},
doi = {10.1162/imag_a_00524},
issn = {2837-6056},
year = {2025},
date = {2025-03-31},
volume = {3},
publisher = {MIT Press},
abstract = {<jats:title>Abstract</jats:title>
<jats:p>Reading relies on the ability to map written symbols with speech sounds. A specific part of the left ventral occipitotemporal cortex, known as the Visual Word Form Area (VWFA), plays a crucial role in this process. Through the automatization of the mapping ability, this area progressively becomes specialized in written word recognition. Yet, despite its key role in reading, the area also responds to speech. This observation raises questions about the actual nature of neural representations encoded in the VWFA and, therefore, the underlying mechanism of the cross-modal responses. Here, we addressed this issue by applying fine-grained analyses of within- and cross-modal repetition suppression effects (RSEs) and Multi-Voxel Pattern Analyses in fMRI and sEEG experiments. Convergent evidence across analysis methods and protocols showed significant RSEs and successful decoding in both within-modal visual and auditory conditions, suggesting that populations of neurons within the VWFA distinctively encode written and spoken language. This functional organization of neural populations enables the area to respond to both written and spoken inputs. The finding opens further discussions on how the human brain may be prepared and adapted for an acquisition of a complex ability such as reading.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<jats:p>Reading relies on the ability to map written symbols with speech sounds. A specific part of the left ventral occipitotemporal cortex, known as the Visual Word Form Area (VWFA), plays a crucial role in this process. Through the automatization of the mapping ability, this area progressively becomes specialized in written word recognition. Yet, despite its key role in reading, the area also responds to speech. This observation raises questions about the actual nature of neural representations encoded in the VWFA and, therefore, the underlying mechanism of the cross-modal responses. Here, we addressed this issue by applying fine-grained analyses of within- and cross-modal repetition suppression effects (RSEs) and Multi-Voxel Pattern Analyses in fMRI and sEEG experiments. Convergent evidence across analysis methods and protocols showed significant RSEs and successful decoding in both within-modal visual and auditory conditions, suggesting that populations of neurons within the VWFA distinctively encode written and spoken language. This functional organization of neural populations enables the area to respond to both written and spoken inputs. The finding opens further discussions on how the human brain may be prepared and adapted for an acquisition of a complex ability such as reading.</jats:p>
Gérardin, Antoine; Verplanke, Willem E. A.; Wang, Gen; Fodor, Zoltan; Guenther, Jana N.; Lellouch, Laurent; Szabo, Kalman K.; Varnhorst, Lukas
Lattice calculation of the π0, η and η' transition form factors and the hadronic light-by-light contribution to the muon g-2 Article de journal
Dans: Phys. Rev. D, iss. 111, p. 5, 2025.
@article{PhysRevD.111.054511,
title = {Lattice calculation of the π0, η and η' transition form factors and the hadronic light-by-light contribution to the muon g-2},
author = {Gérardin, Antoine; Verplanke, Willem E. A.; Wang, Gen; Fodor, Zoltan; Guenther, Jana N.; Lellouch, Laurent; Szabo, Kalman K.; Varnhorst, Lukas},
doi = {10.1103/PhysRevD.111.054511},
year = {2025},
date = {2025-03-21},
urldate = {2025-03-21},
journal = {Phys. Rev. D},
issue = {111},
pages = {5},
publisher = {Mar},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Simon Gsell; Sham Tlili; Matthias Merkel; Pierre-François Lenne
Marangoni-like tissue flows enhance symmetry breaking of embryonic organoids Article de journal
Dans: Nat. Phys., vol. 21, no. 4, p. 644–653, 2025, ISSN: 1745-2481.
@article{Gsell2025,
title = {Marangoni-like tissue flows enhance symmetry breaking of embryonic organoids},
author = {Simon Gsell and Sham Tlili and Matthias Merkel and Pierre-François Lenne},
doi = {10.1038/s41567-025-02802-2},
issn = {1745-2481},
year = {2025},
date = {2025-03-11},
journal = {Nat. Phys.},
volume = {21},
number = {4},
pages = {644--653},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gabriel Meletti; Stéphane Abide; Uwe Harlander; Isabelle Raspo; Stéphane Viazzo
On the influence of the heat transfer at the free surface of a thermally driven rotating annulus Article de journal
Dans: vol. 37, no. 3, 2025, ISSN: 1089-7666.
@article{Meletti2025,
title = {On the influence of the heat transfer at the free surface of a thermally driven rotating annulus},
author = {Gabriel Meletti and Stéphane Abide and Uwe Harlander and Isabelle Raspo and Stéphane Viazzo},
doi = {10.1063/5.0248712},
issn = {1089-7666},
year = {2025},
date = {2025-03-01},
volume = {37},
number = {3},
publisher = {AIP Publishing},
abstract = {Experiments on rotating annuli that are differentially heated in the radial direction have largely contributed to a better understanding of baroclinic instabilities. This configuration creates waves at a laboratory scale that are related to atmospheric circulations. Pioneer studies in baroclinic tanks have shown that experiments with low aspect ratios are more suitable to reproduce small-scale inertia gravity waves, but these tanks have a larger free surface, which leads to higher interactions with their surrounding environment. Considering the heat transferred through the free surface, the present work investigates its impacts on the baroclinic instability using direct numerical simulations (DNS). },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Chotiga Pattamadilok; Shuai Wang; Deirdre Bolger; Anne-Sophie Dubarry
Learning to read transforms phonological into phonographic representations Article de journal
Dans: Sci Rep, vol. 15, no. 1, 2025, ISSN: 2045-2322.
@article{Pattamadilok2025,
title = {Learning to read transforms phonological into phonographic representations},
author = {Chotiga Pattamadilok and Shuai Wang and Deirdre Bolger and Anne-Sophie Dubarry},
doi = {10.1038/s41598-025-88650-9},
issn = {2045-2322},
year = {2025},
date = {2025-02-13},
journal = {Sci Rep},
volume = {15},
number = {1},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shubhaditya Burela; Philipp Krah; Julius Reiss
Parametric model order reduction for a wildland fire model via the shifted POD-based deep learning method Article de journal
Dans: Adv Comput Math, vol. 51, no. 1, 2025, ISSN: 1572-9044.
@article{Burela2025,
title = {Parametric model order reduction for a wildland fire model via the shifted POD-based deep learning method},
author = {Shubhaditya Burela and Philipp Krah and Julius Reiss},
doi = {10.1007/s10444-025-10220-4},
issn = {1572-9044},
year = {2025},
date = {2025-02-03},
journal = {Adv Comput Math},
volume = {51},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {<jats:title>Abstract</jats:title>
<jats:p>Parametric model order reduction techniques often struggle to accurately represent transport-dominated phenomena due to a slowly decaying Kolmogorov <jats:italic>n</jats:italic>-width. To address this challenge, we propose a non-intrusive, data-driven methodology that combines the shifted proper orthogonal decomposition (POD) with deep learning. Specifically, the shifted POD technique is utilized to derive a high-fidelity, low-dimensional model of the flow, which is subsequently utilized as input to a deep learning framework to forecast the flow dynamics under various temporal and parameter conditions. The efficacy of the proposed approach is demonstrated through the analysis of one- and two-dimensional wildland fire models with varying reaction rates, and its error is compared with the error of other similar methods. The results indicate that the proposed approach yields reliable results within the percent range, while also enabling rapid prediction of system states within seconds.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<jats:p>Parametric model order reduction techniques often struggle to accurately represent transport-dominated phenomena due to a slowly decaying Kolmogorov <jats:italic>n</jats:italic>-width. To address this challenge, we propose a non-intrusive, data-driven methodology that combines the shifted proper orthogonal decomposition (POD) with deep learning. Specifically, the shifted POD technique is utilized to derive a high-fidelity, low-dimensional model of the flow, which is subsequently utilized as input to a deep learning framework to forecast the flow dynamics under various temporal and parameter conditions. The efficacy of the proposed approach is demonstrated through the analysis of one- and two-dimensional wildland fire models with varying reaction rates, and its error is compared with the error of other similar methods. The results indicate that the proposed approach yields reliable results within the percent range, while also enabling rapid prediction of system states within seconds.</jats:p>
Stéphane Mazières; Silvana Condemi; Wassim El Nemer; Jacques Chiaroni
Rapid change in red cell blood group systems after the main Out of Africa of Homo sapiens Article de journal
Dans: Sci Rep, vol. 15, no. 1, 2025, ISSN: 2045-2322.
@article{Mazières2025,
title = {Rapid change in red cell blood group systems after the main Out of Africa of Homo sapiens},
author = {Stéphane Mazières and Silvana Condemi and Wassim El Nemer and Jacques Chiaroni},
doi = {10.1038/s41598-024-83023-0},
issn = {2045-2322},
year = {2025},
date = {2025-01-25},
journal = {Sci Rep},
volume = {15},
number = {1},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ming Xia; Pascal Boulet; Marie-Christine Record
Influence of magnetic Cr and Fe doping on thermoelectric performance in PbSnTeSe high-entropy alloy Article de journal
Dans: Phys. Rev. B, vol. 111, no. 4, 2025, ISSN: 2469-9969.
@article{Xia2025,
title = {Influence of magnetic Cr and Fe doping on thermoelectric performance in PbSnTeSe high-entropy alloy},
author = {Ming Xia and Pascal Boulet and Marie-Christine Record},
doi = {10.1103/physrevb.111.045149},
issn = {2469-9969},
year = {2025},
date = {2025-01-22},
journal = {Phys. Rev. B},
volume = {111},
number = {4},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Amisadai Lorenzo Reyes; Fatim Ndeye Ndiaye; Albert Artigas; Yoann Coquerel; Cyril Terrioux; Nicolas Prcovic; Denis Hagebaum‐Reignier; Yannick Carissan
Ground and Excited State Aromaticity in Azulene‐Based Helicenes Article de journal
Dans: ChemPhysChem, vol. 26, no. 7, 2025, ISSN: 1439-7641.
@article{Reyes2025,
title = {Ground and Excited State Aromaticity in Azulene‐Based Helicenes},
author = {Amisadai Lorenzo Reyes and Fatim Ndeye Ndiaye and Albert Artigas and Yoann Coquerel and Cyril Terrioux and Nicolas Prcovic and Denis Hagebaum‐Reignier and Yannick Carissan},
doi = {10.1002/cphc.202400833},
issn = {1439-7641},
year = {2025},
date = {2025-01-20},
journal = {ChemPhysChem},
volume = {26},
number = {7},
publisher = {Wiley},
abstract = {<jats:title>Abstract</jats:title><jats:p>Electron delocalization is studied in the ground singlet and first excited triplet states of azulene‐containing helicenes. After showing that the compounds we study can be synthesized, we show that they exhibit a charge separation in the ground state, which does not appear in their triplet excited state. Then, magnetically induced properties (IMS3D and ACID) and electron density decomposition methods (EDDB) are used to rationalize aromaticity in these systems. For azulene‐based helicenes larger than a critical size, that is, for more than six fused cycles, unexpected aromatic delocalization circuits appear. This feature is understood via the decomposition of the wavefunction on sets of carefully chosen local electronic structures and fragment orbital diagrams.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Magali Muraglia; Olivier Agullo; Nicolas Dubuit; Roméo Bigué; Xavier Garbet
Multi-scale physics of magnetic reconnection in hot magnetized plasmas Article de journal
Dans: J. Plasma Phys., vol. 91, no. 1, 2025, ISSN: 1469-7807.
@article{Muraglia2025,
title = {Multi-scale physics of magnetic reconnection in hot magnetized plasmas},
author = {Magali Muraglia and Olivier Agullo and Nicolas Dubuit and Roméo Bigué and Xavier Garbet},
doi = {10.1017/s0022377824001363},
issn = {1469-7807},
year = {2025},
date = {2025-01-09},
journal = {J. Plasma Phys.},
volume = {91},
number = {1},
publisher = {Cambridge University Press (CUP)},
abstract = {<jats:p>Magnetic reconnection leads to the formation of island-shaped magnetic structure(s). Due to disagreement between theoretical evaluations of the characteristic reconnection time and observations, it is commonly accepted that the collisionality (or resistivity) is too low to explain magnetic reconnection phenomena in fusion plasmas. Thus, magnetic reconnection still raises many open questions. The work presented here aims to improve the fundamental knowledge about ‘the life of a magnetic island’. Here, in the light of the many works of the last 70 years, a new paradigm for understanding magnetic reconnection in fusion plasmas is proposed. The life of a magnetic island (whatever its scale) follows three phases: the origin, the growth and the saturation. The possible physical mechanisms at play in these three phases will be investigated. First, for the island origin, typical time scales in link with magnetic reconnection will be evaluated for three tokamaks of different sizes (TCV, WEST and JET) to verify if magnetic reconnection is such an unexplained phenomenon in fusion plasmas. Second, for the island drive, the richness of possible mechanisms leading to ‘rapid’ magnetic island growth in fusion devices will be presented for small and large scales. Third comes the island saturation step. Results on the prediction of a large island width at saturation are presented and discussed.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Qing Li; Pierre Faux; Emma Wentworth Winchester; Guangrui Yang; Yingjie Chen; Luis Miguel Ramírez; Macarena Fuentes-Guajardo; Lauriane Poloni; Emilie Steimetz; Rolando Gonzalez-José; Victor Acuña; Maria-Cátira Bortolini; Giovanni Poletti; Carla Gallo; Francisco Rothhammer; Winston Rojas; Youyi Zheng; James C. Cox; Vaishali Patel; Matthew P. Hoffman; Li Ding; Chenchen Peng; Justin Cotney; Nicolas Navarro; Timothy C. Cox; Miguel Delgado; Kaustubh Adhikari; Andrés Ruiz-Linares
PITX2 expression and Neanderthal introgression in HS3ST3A1 contribute to variation in tooth dimensions in modern humans Article de journal
Dans: Current Biology, vol. 35, no. 1, p. 131–144.e6, 2025, ISSN: 0960-9822.
@article{Li2025,
title = {PITX2 expression and Neanderthal introgression in HS3ST3A1 contribute to variation in tooth dimensions in modern humans},
author = {Qing Li and Pierre Faux and Emma Wentworth Winchester and Guangrui Yang and Yingjie Chen and Luis Miguel Ramírez and Macarena Fuentes-Guajardo and Lauriane Poloni and Emilie Steimetz and Rolando Gonzalez-José and Victor Acuña and Maria-Cátira Bortolini and Giovanni Poletti and Carla Gallo and Francisco Rothhammer and Winston Rojas and Youyi Zheng and James C. Cox and Vaishali Patel and Matthew P. Hoffman and Li Ding and Chenchen Peng and Justin Cotney and Nicolas Navarro and Timothy C. Cox and Miguel Delgado and Kaustubh Adhikari and Andrés Ruiz-Linares},
doi = {10.1016/j.cub.2024.11.027},
issn = {0960-9822},
year = {2025},
date = {2025-01-06},
journal = {Current Biology},
volume = {35},
number = {1},
pages = {131--144.e6},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ali Al‐Jaaidi; Josene M. Toldo; Mario Barbatti
Ultrafast Dynamics of Diketopyrrolopyrrole Dimers Article de journal
Dans: J Comput Chem, vol. 46, no. 1, 2025, ISSN: 1096-987X.
@article{Al‐Jaaidi2024,
title = {Ultrafast Dynamics of Diketopyrrolopyrrole Dimers},
author = {Ali Al‐Jaaidi and Josene M. Toldo and Mario Barbatti},
doi = {10.1002/jcc.27547},
issn = {1096-987X},
year = {2025},
date = {2025-01-05},
journal = {J Comput Chem},
volume = {46},
number = {1},
publisher = {Wiley},
abstract = {ABSTRACT Diketopyrrolopyrroles (DPPs) have attracted attention for their potential applications in organic photovoltaics due to their tunable optical properties and charge‐carrier mobilities. In this study, we investigate the excited‐state dynamics of a DPP dimer using time‐dependent density functional theory (TDDFT) and nonadiabatic molecular dynamics simulations. Our results reveal a near‐barrierless hydrogen migration state intersection that facilitates ultrafast internal conversion with a lifetime of about 400 fs, leading to fluorescence quenching. Electronic density analysis along the relaxation pathway confirms a hydrogen atom transfer mechanism. These findings highlight the critical role of state intersections in the photophysical properties of DPP dimers, providing new insights for the design of functionalized DPP systems aimed at suppressing nonradiative decay for enhanced performance in photovoltaic applications. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2024
Simone Bonfrate; Nicolas Ferré; Miquel Huix-Rotllant
Dans: J. Chem. Theory Comput., vol. 20, no. 10, p. 4338–4349, 2024, ISSN: 1549-9626.
@article{Bonfrate2024,
title = {Analytic Gradients for the Electrostatic Embedding QM/MM Model in Periodic Boundary Conditions Using Particle-Mesh Ewald Sums and Electrostatic Potential Fitted Charge Operators},
author = {Simone Bonfrate and Nicolas Ferré and Miquel Huix-Rotllant},
doi = {10.1021/acs.jctc.4c00201},
issn = {1549-9626},
year = {2024},
date = {2024-05-28},
journal = {J. Chem. Theory Comput.},
volume = {20},
number = {10},
pages = {4338--4349},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Donglin Diao; Anna Baidiuk; Leo Chaussy; Iago De Assis Modenez; Xavi Ribas; Marius Réglier; Vlad Martin-Diaconescu; Paola Nava; A. Jalila Simaan; Alexandre Martinez; Cédric Colomban
Light-Induced Reactivity Switch at O2–Activating Bioinspired Copper(I) Complexes Article de journal
Dans: JACS Au, vol. 4, no. 5, p. 1966–1974, 2024, ISSN: 2691-3704.
@article{Diao2024,
title = {Light-Induced Reactivity Switch at O_{2}–Activating Bioinspired Copper(I) Complexes},
author = {Donglin Diao and Anna Baidiuk and Leo Chaussy and Iago De Assis Modenez and Xavi Ribas and Marius Réglier and Vlad Martin-Diaconescu and Paola Nava and A. Jalila Simaan and Alexandre Martinez and Cédric Colomban},
doi = {10.1021/jacsau.4c00184},
issn = {2691-3704},
year = {2024},
date = {2024-05-27},
journal = {JACS Au},
volume = {4},
number = {5},
pages = {1966--1974},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Léo Chaussy; Vijay Gopal Chilkuri; Stéphane Humbel; Paola Nava
Spectroscopy of End-On Copper(II) Superoxido Complexes: A Wave Function-Based Analysis Article de journal
Dans: Inorg. Chem., vol. 63, no. 18, p. 8038–8049, 2024, ISSN: 1520-510X.
@article{Chaussy2024,
title = {Spectroscopy of End-On Copper(II) Superoxido Complexes: A Wave Function-Based Analysis},
author = {Léo Chaussy and Vijay Gopal Chilkuri and Stéphane Humbel and Paola Nava},
doi = {10.1021/acs.inorgchem.3c04401},
issn = {1520-510X},
year = {2024},
date = {2024-05-06},
journal = {Inorg. Chem.},
volume = {63},
number = {18},
pages = {8038--8049},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Yajie Chou; Mathilde Vançon; Muriel Albalat; Carla Deschodt; Paola Nava; Stéphane Humbel; Nicolas Vanthuyne; Hervé Clavier
Atropisomeric N‐Heterocyclic Carbene‐Palladium(II) Complexes: Influence of the Backbone Substitution Article de journal
Dans: Eur J Inorg Chem, vol. 27, no. 12, 2024, ISSN: 1099-0682.
@article{Chou2024,
title = {Atropisomeric N‐Heterocyclic Carbene‐Palladium(II) Complexes: Influence of the Backbone Substitution},
author = {Yajie Chou and Mathilde Vançon and Muriel Albalat and Carla Deschodt and Paola Nava and Stéphane Humbel and Nicolas Vanthuyne and Hervé Clavier},
doi = {10.1002/ejic.202300780},
issn = {1099-0682},
year = {2024},
date = {2024-04-22},
journal = {Eur J Inorg Chem},
volume = {27},
number = {12},
publisher = {Wiley},
abstract = {Abstract In order to facilitate the synthesis of NHC precursors as well as to incorporate new moieties, the influence of the NHC backbone substitution was investigated within the concept of atropisomeric NHC‐metal complexes. A series of NHC precursors was prepared from new anilines and used to synthesize the corresponding Pd(allyl)Cl(NHC) complexes, most of the time as a mixture of diastereomers (meso and chiral). Chiral HPLC at preparative scale enabled to obtain enantiopure complexes in low to excellent yields. These complexes displayed good activity in the intramolecular α‐arylation of amides and, as a function of the structure of the chiral catalyst, excellent enantioselectivities were reached (up to 96 % ee). },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Saikat Mukherjee; Rafael S. Mattos; Josene M. Toldo; Hans Lischka; Mario Barbatti
Prediction Challenge: Simulating Rydberg photoexcited cyclobutanone with surface hopping dynamics based on different electronic structure methods Article de journal
Dans: vol. 160, no. 15, 2024, ISSN: 1089-7690.
@article{Mukherjee2024,
title = {Prediction Challenge: Simulating Rydberg photoexcited cyclobutanone with surface hopping dynamics based on different electronic structure methods},
author = {Saikat Mukherjee and Rafael S. Mattos and Josene M. Toldo and Hans Lischka and Mario Barbatti},
doi = {10.1063/5.0203636},
issn = {1089-7690},
year = {2024},
date = {2024-04-21},
volume = {160},
number = {15},
publisher = {AIP Publishing},
abstract = {This research examines the nonadiabatic dynamics of cyclobutanone after excitation into the n → 3s Rydberg S2 state. It stems from our contribution to the Special Topic of the Journal of Chemical Physics to test the predictive capability of computational chemistry against unseen experimental data. Decoherence-corrected fewest-switches surface hopping was used to simulate nonadiabatic dynamics with full and approximated nonadiabatic couplings. Several simulation sets were computed with different electronic structure methods, including a multiconfigurational wavefunction [multiconfigurational self-consistent field (MCSCF)] specially built to describe dissociative channels, multireference semiempirical approach, time-dependent density functional theory, algebraic diagrammatic construction, and coupled cluster. MCSCF dynamics predicts a slow deactivation of the S2 state (10 ps), followed by an ultrafast population transfer from S1 to S0 (<100 fs). CO elimination (C3 channel) dominates over C2H4 formation (C2 channel). These findings radically differ from the other methods, which predicted S2 lifetimes 10–250 times shorter and C2 channel predominance. These results suggest that routine electronic structure methods may hold low predictive power for the outcome of nonadiabatic dynamics. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Maxime Bizet; Deborah Byrne; Frédéric Biaso; Guillaume Gerbaud; Emilien Etienne; Giuseppina Briola; Bruno Guigliarelli; Philippe Urban; Pierre Dorlet; Tamas Kalai; Gilles Truan; Marlène Martinho
Dans: Chemistry A European J, vol. 30, no. 19, 2024, ISSN: 1521-3765.
@article{Bizet2024,
title = {Structural insights into the semiquinone form of human Cytochrome P450 reductase by DEER distance measurements between a native flavin and a spin labelled non‐canonical amino acid},
author = {Maxime Bizet and Deborah Byrne and Frédéric Biaso and Guillaume Gerbaud and Emilien Etienne and Giuseppina Briola and Bruno Guigliarelli and Philippe Urban and Pierre Dorlet and Tamas Kalai and Gilles Truan and Marlène Martinho},
doi = {10.1002/chem.202304307},
issn = {1521-3765},
year = {2024},
date = {2024-04-02},
journal = {Chemistry A European J},
volume = {30},
number = {19},
publisher = {Wiley},
abstract = {Abstract The flavoprotein Cytochrome P450 reductase (CPR) is the unique electron pathway from NADPH to Cytochrome P450 (CYPs). The conformational dynamics of human CPR in solution, which involves transitions from a “locked/closed” to an “unlocked/open” state, is crucial for electron transfer. To date, however, the factors guiding these changes remain unknown. By Site‐Directed Spin Labelling coupled to Electron Paramagnetic Resonance spectroscopy, we have incorporated a non‐canonical amino acid onto the flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) domains of soluble human CPR, and labelled it with a specific nitroxide spin probe. Taking advantage of the endogenous FMN cofactor, we successfully measured for the first time, the distance distribution by DEER between the semiquinone state FMNH• and the nitroxide. The DEER data revealed a salt concentration‐dependent distance distribution, evidence of an “open” CPR conformation at high salt concentrations exceeding previous reports. We also conducted molecular dynamics simulations which unveiled a diverse ensemble of conformations for the “open” semiquinone state of the CPR at high salt concentration. This study unravels the conformational landscape of the one electron reduced state of CPR, which had never been studied before. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E.A. Hodille; B. Pavec; J. Denis; A. Dunand; Y. Ferro; M. Minissale; T. Angot; C. Grisolia; R. Bisson
Deuterium uptake, desorption and sputtering from W(110) surface covered with oxygen Article de journal
Dans: Nucl. Fusion, vol. 64, no. 4, 2024, ISSN: 1741-4326.
@article{Hodille2024,
title = {Deuterium uptake, desorption and sputtering from W(110) surface covered with oxygen},
author = {E.A. Hodille and B. Pavec and J. Denis and A. Dunand and Y. Ferro and M. Minissale and T. Angot and C. Grisolia and R. Bisson},
doi = {10.1088/1741-4326/ad2a29},
issn = {1741-4326},
year = {2024},
date = {2024-04-01},
journal = {Nucl. Fusion},
volume = {64},
number = {4},
publisher = {IOP Publishing},
abstract = {Abstract
Rate equation modelling is performed to simulate
D
2
and
D
2
+
D
2
+
exposure of the
W
(
110
)
surface with varying coverage of oxygen atoms (O) from the clean surface up to 0.75 monolayer of O. Density Functional Theory (DFT) calculated energetics are used as inputs for the surface processes and desorption energies are optimized to best reproduce the Thermal Desorption Spectrometry (TDS) experiments obtained for
D
2
exposure. For the clean surface, the optimized desorption energies (1.10 eV–1.40 eV) are below the DFT ones (1.30 eV–1.50 eV). For the O covered surface, the main desorption peak is reproduced with desorption energies of 1.10 eV and 1.00 eV for 0.50 and 0.75 monolayer of O respectively. This is slightly higher than the DFT predicted desorption energies. In order to simulate satisfactorily the total retention obtained experimentally for
D
2
+
D
2
+
exposure, a sputtering process needs to be added to the model, describing the sputtering of adsorbed species (D atoms) by the incident D ions. The impact of the sputtering process on the shape of the TDS spectra, on the total retention and on the recycling of D from the wall is discussed. In order to better characterize the sputtering process, especially its products and yields, atomistic calculations such as molecular dynamics are suggested as a next step for this study. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zetao Lin; Thibault Maurel-Oujia; Benjamin Kadoch; Philipp Krah; Nathaniel Saura; Sadruddin Benkadda; Kai Schneider
Synthesizing impurity clustering in the edge plasma of tokamaks using neural networks Article de journal
Dans: vol. 31, no. 3, 2024, ISSN: 1089-7674.
@article{Lin2024,
title = {Synthesizing impurity clustering in the edge plasma of tokamaks using neural networks},
author = {Zetao Lin and Thibault Maurel-Oujia and Benjamin Kadoch and Philipp Krah and Nathaniel Saura and Sadruddin Benkadda and Kai Schneider},
doi = {10.1063/5.0178085},
issn = {1089-7674},
year = {2024},
date = {2024-03-01},
volume = {31},
number = {3},
publisher = {AIP Publishing},
abstract = {This work investigates the behavior of impurities in edge plasma of tokamaks using high-resolution numerical simulations based on Hasegawa–Wakatani equations. Specifically, it focuses on the behavior of inertial particles, which has not been extensively studied in the field of plasma physics. Our simulations utilize one-way coupling of a large number of inertial point particles, which model plasma impurities. We observe that with Stokes number (St), which characterizes the inertia of particles being much less than one, such light impurities closely track the fluid flow without pronounced clustering. For intermediate St values, distinct clustering appears, with larger Stokes values, i.e., heavy impurities even generating more substantial clusters. When St is significantly large, very heavy impurities tend to detach from the flow and maintain their trajectory, resulting in fewer observable clusters and corresponding to random motion. A core component of this work involves machine learning techniques. Applying three different neural networks—Autoencoder, U-Net, and Generative Adversarial Network (GAN)—to synthesize preferential concentration fields of impurities, we use vorticity as input and predict impurity number density fields. GAN outperforms the two others by aligning closely with direct numerical simulation data in terms of probability density functions of the particle distribution and energy spectra. This machine learning technique holds the potential to reduce computational costs by eliminating the need to track millions of particles modeling impurities in simulations. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jingtao Ma; Lincheng Xu; Jérôme Jacob; Eric Serre; Pierre Sagaut
An averaged mass correction scheme for the simulation of high subsonic turbulent internal flows using a lattice Boltzmann method Article de journal
Dans: vol. 36, no. 3, 2024, ISSN: 1089-7666.
@article{Ma2024,
title = {An averaged mass correction scheme for the simulation of high subsonic turbulent internal flows using a lattice Boltzmann method},
author = {Jingtao Ma and Lincheng Xu and Jérôme Jacob and Eric Serre and Pierre Sagaut},
doi = {10.1063/5.0192360},
issn = {1089-7666},
year = {2024},
date = {2024-03-01},
volume = {36},
number = {3},
publisher = {AIP Publishing},
abstract = {This paper addresses the simulation of internal high-speed turbulent compressible flows using lattice Boltzmann method (LBM) when it is coupled with the immersed boundary method for non-body-fitted meshes. The focus is made here on the mass leakage issue. The recent LBM pressure-based algorithm [Farag et al. Phys. Fluids 32, 066106 (2020)] has shown its superiority on classical density-based algorithm to simulate high-speed compressible flows. Following our previous theoretical work on incompressible flows [Xu et al. Phys. Fluids 34, 065113 (2022)], we propose an averaged mass correction technique to mitigate mass leakage when simulating high-Mach-number compressible flows. It is adapted to deal here with a density, which is decoupled from the zero-moment definition. The simulations focus on two generic but canonical configurations of more complex industrial devices, the straight channel at different angles of inclination at Mach numbers (Ma) ranging from 0.2 to 0.8, and the National Aeronautics and Space Administration Glenn S-duct at Ma = 0.6. The present results show that mass leakage can be a critical issue for the accuracy of the solution and that the proposed correction technique effectively mitigates it and leads to significant improvements in the prediction of the solution. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Matheus J. Lazarotto; Iberê L. Caldas; Yves Elskens
Island myriads in periodic potentials Article de journal
Dans: vol. 34, no. 3, 2024, ISSN: 1089-7682.
@article{Lazarotto2024,
title = {Island myriads in periodic potentials},
author = {Matheus J. Lazarotto and Iberê L. Caldas and Yves Elskens},
doi = {10.1063/5.0185891},
issn = {1089-7682},
year = {2024},
date = {2024-03-01},
volume = {34},
number = {3},
publisher = {AIP Publishing},
abstract = {A phenomenon of emergence of stability islands in phase space is reported for two periodic potentials with tiling symmetries, one square and the other hexagonal, inspired by bidimensional Hamiltonian models of optical lattices. The structures found, here termed as island myriads, resemble web-tori with notable fractality and arise at energy levels reaching that of unstable equilibria. In general, the myriad is an arrangement of concentric island chains with properties relying on the translational and rotational symmetries of the potential functions. In the square system, orbits within the myriad come in isochronous pairs and can have different periodic closure, either returning to their initial position or jumping to identical sites in neighbor cells of the lattice, therefore impacting transport properties. As seen when compared to a more generic case, i.e., the rectangular lattice, the breaking of square symmetry disrupts the myriad even for small deviations from its equilateral configuration. For the hexagonal case, the myriad was found but in attenuated form, mostly due to extra instabilities in the potential surface that prevent the stabilization of orbits forming the chains. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pavlo O. Dral; Fuchun Ge; Yi-Fan Hou; Peikun Zheng; Yuxinxin Chen; Mario Barbatti; Olexandr Isayev; Cheng Wang; Bao-Xin Xue; Max Pinheiro Jr; Yuming Su; Yiheng Dai; Yangtao Chen; Lina Zhang; Shuang Zhang; Arif Ullah; Quanhao Zhang; Yanchi Ou
MLatom 3: A Platform for Machine Learning-Enhanced Computational Chemistry Simulations and Workflows Article de journal
Dans: J. Chem. Theory Comput., vol. 20, no. 3, p. 1193–1213, 2024, ISSN: 1549-9626.
@article{Dral2024,
title = {MLatom 3: A Platform for Machine Learning-Enhanced Computational Chemistry Simulations and Workflows},
author = {Pavlo O. Dral and Fuchun Ge and Yi-Fan Hou and Peikun Zheng and Yuxinxin Chen and Mario Barbatti and Olexandr Isayev and Cheng Wang and Bao-Xin Xue and Max Pinheiro Jr and Yuming Su and Yiheng Dai and Yangtao Chen and Lina Zhang and Shuang Zhang and Arif Ullah and Quanhao Zhang and Yanchi Ou},
doi = {10.1021/acs.jctc.3c01203},
issn = {1549-9626},
year = {2024},
date = {2024-02-13},
journal = {J. Chem. Theory Comput.},
volume = {20},
number = {3},
pages = {1193--1213},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
S Sartoretto; JB Ledoux; E Gueret; D Guillemain; C Ravel; L Moirand; D Aurelle
Ecological and genomic characterization of a remarkable natural heritage: a mesophotic ‘giant’ Paramuricea clavata forest Article de journal
Dans: Mar. Ecol. Prog. Ser., vol. 728, p. 85–101, 2024, ISSN: 1616-1599.
@article{Sartoretto2024,
title = {Ecological and genomic characterization of a remarkable natural heritage: a mesophotic ‘giant’ Paramuricea clavata forest},
author = {S Sartoretto and JB Ledoux and E Gueret and D Guillemain and C Ravel and L Moirand and D Aurelle},
doi = {10.3354/meps14427},
issn = {1616-1599},
year = {2024},
date = {2024-02-08},
journal = {Mar. Ecol. Prog. Ser.},
volume = {728},
pages = {85--101},
publisher = {Inter-Research Science Center},
abstract = {Paramuricea clavata is an ecosystem engineer, structuring hard bottom communities in the Mediterranean Sea, from 10 to 200 m depth. For more than 2 decades, shallow populations of P. clavata have been impacted by marine heatwaves, resulting in massive mortality events. Recently, a new dense population characterized by the tallest colonies ever recorded (up to 1.80 m) in the Mediterranean Sea was discovered between 50 and 60 m depth. Here, we analyzed the size and genetic structure of this ‘deep giant population’ and conducted a reciprocal transplant experiment with a shallow population inhabiting the same area to test for local adaptation. The experiment showed no significant difference in the survival rate despite the high temperatures registered in the shallow area. Nevertheless, we observed a significant differentiation by depth in this area, with low estimates of gene flow. The particular local oceanographic conditions could lead to a relative isolation of the population. In conclusion, the reduced connectivity of this newly discovered giant population with shallower ones questions its potential role as a climate refuge. Additionally, this population constitutes a unique natural heritage site that should be effectively protected from physical impacts and other direct consequences of anthropogenic activities. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Louise Miton; Élise Antonetti; Diego García‐López; Paola Nava; Vincent Robert; Muriel Albalat; Nicolas Vanthuyne; Alexandre Martinez; Yoann Cotelle
A Cyclotriveratrylene Solvent‐Dependent Chiral Switch Article de journal
Dans: Chemistry A European J, vol. 30, no. 8, 2024, ISSN: 1521-3765.
@article{Miton2023,
title = {A Cyclotriveratrylene Solvent‐Dependent Chiral Switch},
author = {Louise Miton and Élise Antonetti and Diego García‐López and Paola Nava and Vincent Robert and Muriel Albalat and Nicolas Vanthuyne and Alexandre Martinez and Yoann Cotelle},
doi = {10.1002/chem.202303294},
issn = {1521-3765},
year = {2024},
date = {2024-02-07},
journal = {Chemistry A European J},
volume = {30},
number = {8},
publisher = {Wiley},
abstract = {Abstract Chiral molecular switches are attracting attention as they could pave the way to chiral molecular machines. Herein, we report on the design and synthesis of a single molecule chiral switch based on a cyclotriveratrylene scaffold, in which the chirality inversion is controlled by the solvent. Hemicryptophanes are built around a C 3 cyclotriveratrylene chiral unit, with either M or P handedness, connected to another tripod and usually displaying an “out” configuration. Here, we demonstrate that solvents are able to control the “in” and “out” configurations of the CTV unit, creating a chiral molecular switch from (M /P )”in” to (P /M )”out” handedness. The full characterization of the “in” and “out” configurations and of the chirality switch were made possible by combining NMR, HPLC, ECD, DFT and molecular dynamics. Interestingly, bulky aromatic solvents such as 2‐t ‐butylphenol favor the “in” configuration while polar aprotic solvents such as acetone favor the “out” configuration. This chiral switch was found to be fully reversible allowing the system to oscillate between two different M and P configurations several times upon the action of solvents stimuli. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Josene M. Toldo; Rafael S. Mattos; Max Pinheiro; Saikat Mukherjee; Mario Barbatti
Recommendations for Velocity Adjustment in Surface Hopping Article de journal
Dans: J. Chem. Theory Comput., vol. 20, no. 2, p. 614–624, 2024, ISSN: 1549-9626.
@article{Toldo2024,
title = {Recommendations for Velocity Adjustment in Surface Hopping},
author = {Josene M. Toldo and Rafael S. Mattos and Max Pinheiro and Saikat Mukherjee and Mario Barbatti},
doi = {10.1021/acs.jctc.3c01159},
issn = {1549-9626},
year = {2024},
date = {2024-01-23},
journal = {J. Chem. Theory Comput.},
volume = {20},
number = {2},
pages = {614--624},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Elisa Pieri; Oliver Weingart; Miquel Huix-Rotllant; Vincent Ledentu; Marco Garavelli; Nicolas Ferré
Modeling pH-Dependent Biomolecular Photochemistry Article de journal
Dans: J. Chem. Theory Comput., vol. 20, no. 2, p. 842–855, 2024, ISSN: 1549-9626.
@article{Pieri2024,
title = {Modeling pH-Dependent Biomolecular Photochemistry},
author = {Elisa Pieri and Oliver Weingart and Miquel Huix-Rotllant and Vincent Ledentu and Marco Garavelli and Nicolas Ferré},
doi = {10.1021/acs.jctc.3c00980},
issn = {1549-9626},
year = {2024},
date = {2024-01-23},
journal = {J. Chem. Theory Comput.},
volume = {20},
number = {2},
pages = {842--855},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
V. Puthumana; P.G. Chen; M. Leonetti; R. Lasserre; M. Jaeger
Assessment of coupled bilayer–cytoskeleton modelling strategy for red blood cell dynamics in flow Article de journal
Dans: J. Fluid Mech., vol. 979, 2024, ISSN: 1469-7645.
@article{Puthumana2024,
title = {Assessment of coupled bilayer–cytoskeleton modelling strategy for red blood cell dynamics in flow},
author = {V. Puthumana and P.G. Chen and M. Leonetti and R. Lasserre and M. Jaeger},
doi = {10.1017/jfm.2023.1092},
issn = {1469-7645},
year = {2024},
date = {2024-01-22},
journal = {J. Fluid Mech.},
volume = {979},
publisher = {Cambridge University Press (CUP)},
abstract = {The red blood cell (RBC) membrane is composed of a lipid bilayer and a cytoskeleton interconnected by protein junction complexes, allowing for potential sliding between the lipid bilayer and the cytoskeleton. Despite this biological reality, it is most often modelled as a single-layer model, a hyperelastic capsule or a fluid vesicle. Another approach involves incorporating the membrane's composite structure using double layers, where one layer represents the lipid bilayer and the other represents the cytoskeleton. In this paper, we computationally assess the various modelling strategies by analysing RBC behaviour in extensional flow and four distinct regimes that simulate RBC dynamics in shear flow. The proposed double-layer strategies, such as the vesicle–capsule and capsule–capsule models, account for the fluidity and surface incompressibility of the lipid bilayer in different ways. Our findings demonstrate that introducing sliding between the layers offers the cytoskeleton a considerable degree of freedom to alleviate its elastic stresses, resulting in a significant increase in RBC elongation. Surprisingly, our study reveals that the membrane modelling strategy for RBCs holds greater importance than the choice of the cytoskeleton's reference shape. These results highlight the inadequacy of considering mechanical properties alone and emphasise the need for careful integration of these properties. Furthermore, our findings fortuitously uncover a novel indicator for determining the appropriate stress-free shape of the cytoskeleton. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2023
Marc Alías-Rodríguez; Simone Bonfrate; Woojin Park; Nicolas Ferré; Cheol Ho Choi; Miquel Huix-Rotllant
Dans: J. Phys. Chem. A, vol. 127, no. 49, p. 10382–10392, 2023, ISSN: 1520-5215.
@article{Alías-Rodríguez2023,
title = {Solvent Effects and pH Dependence of the X-ray Absorption Spectra of Proline from Electrostatic Embedding Quantum Mechanics/Molecular Mechanics and Mixed-Reference Spin-Flip Time-dependent Density-Functional Theory},
author = {Marc Alías-Rodríguez and Simone Bonfrate and Woojin Park and Nicolas Ferré and Cheol Ho Choi and Miquel Huix-Rotllant},
doi = {10.1021/acs.jpca.3c05070},
issn = {1520-5215},
year = {2023},
date = {2023-12-14},
journal = {J. Phys. Chem. A},
volume = {127},
number = {49},
pages = {10382--10392},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gustavo Cárdenas; Vincent Ledentu; Miquel Huix-Rotllant; Massimo Olivucci; Nicolas Ferré
Automatic Rhodopsin Modeling with Multiple Protonation Microstates Article de journal
Dans: J. Phys. Chem. A, vol. 127, no. 44, p. 9365–9380, 2023, ISSN: 1520-5215.
@article{Cárdenas2023,
title = {Automatic Rhodopsin Modeling with Multiple Protonation Microstates},
author = {Gustavo Cárdenas and Vincent Ledentu and Miquel Huix-Rotllant and Massimo Olivucci and Nicolas Ferré},
doi = {10.1021/acs.jpca.3c05413},
issn = {1520-5215},
year = {2023},
date = {2023-11-09},
journal = {J. Phys. Chem. A},
volume = {127},
number = {44},
pages = {9365--9380},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Quentin Kriaa; Benjamin Favier; Michael Le Bars
Two-way coupling Eulerian numerical simulations of particle clouds settling in a quiescent fluid Article de journal
Dans: Phys. Rev. Fluids, vol. 8, no. 7, 2023, ISSN: 2469-990X.
@article{Kriaa2023,
title = {Two-way coupling Eulerian numerical simulations of particle clouds settling in a quiescent fluid},
author = {Quentin Kriaa and Benjamin Favier and Michael Le Bars},
doi = {10.1103/physrevfluids.8.074302},
issn = {2469-990X},
year = {2023},
date = {2023-10-25},
journal = {Phys. Rev. Fluids},
volume = {8},
number = {7},
publisher = {American Physical Society (APS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Giovanni Li Manni; Ignacio Fdez. Galván; Ali Alavi; Flavia Aleotti; Francesco Aquilante; Jochen Autschbach; Davide Avagliano; Alberto Baiardi; Jie J. Bao; Stefano Battaglia; Letitia Birnoschi; Alejandro Blanco-González; Sergey I. Bokarev; Ria Broer; Roberto Cacciari; Paul B. Calio; Rebecca K. Carlson; Rafael Carvalho Couto; Luis Cerdán; Liviu F. Chibotaru; Nicholas F. Chilton; Jonathan Richard Church; Irene Conti; Sonia Coriani; Juliana Cuéllar-Zuquin; Razan E. Daoud; Nike Dattani; Piero Decleva; Coen de Graaf; Mickaël G. Delcey; Luca De Vico; Werner Dobrautz; Sijia S. Dong; Rulin Feng; Nicolas Ferré; Michael Filatov(Gulak); Laura Gagliardi; Marco Garavelli; Leticia González; Yafu Guan; Meiyuan Guo; Matthew R. Hennefarth; Matthew R. Hermes; Chad E. Hoyer; Miquel Huix-Rotllant; Vishal Kumar Jaiswal; Andy Kaiser; Danil S. Kaliakin; Marjan Khamesian; Daniel S. King; Vladislav Kochetov; Marek Krośnicki; Arpit Arun Kumaar; Ernst D. Larsson; Susi Lehtola; Marie-Bernadette Lepetit; Hans Lischka; Pablo López Ríos; Marcus Lundberg; Dongxia Ma; Sebastian Mai; Philipp Marquetand; Isabella C. D. Merritt; Francesco Montorsi; Maximilian Mörchen; Artur Nenov; Vu Ha Anh Nguyen; Yoshio Nishimoto; Meagan S. Oakley; Massimo Olivucci; Markus Oppel; Daniele Padula; Riddhish Pandharkar; Quan Manh Phung; Felix Plasser; Gerardo Raggi; Elisa Rebolini; Markus Reiher; Ivan Rivalta; Daniel Roca-Sanjuán; Thies Romig; Arta Anushirwan Safari; Aitor Sánchez-Mansilla; Andrew M. Sand; Igor Schapiro; Thais R. Scott; Javier Segarra-Martí; Francesco Segatta; Dumitru-Claudiu Sergentu; Prachi Sharma; Ron Shepard; Yinan Shu; Jakob K. Staab; Tjerk P. Straatsma; Lasse Kragh Sørensen; Bruno Nunes Cabral Tenorio; Donald G. Truhlar; Liviu Ungur; Morgane Vacher; Valera Veryazov; Torben Arne Voß; Oskar Weser; Dihua Wu; Xuchun Yang; David Yarkony; Chen Zhou; J. Patrick Zobel; Roland Lindh
The OpenMolcas Web: A Community-Driven Approach to Advancing Computational Chemistry Article de journal
Dans: J. Chem. Theory Comput., vol. 19, no. 20, p. 6933–6991, 2023, ISSN: 1549-9626.
@article{LiManni2023,
title = {The OpenMolcas \textit{Web}: A Community-Driven Approach to Advancing Computational Chemistry},
author = {Giovanni Li Manni and Ignacio Fdez. Galván and Ali Alavi and Flavia Aleotti and Francesco Aquilante and Jochen Autschbach and Davide Avagliano and Alberto Baiardi and Jie J. Bao and Stefano Battaglia and Letitia Birnoschi and Alejandro Blanco-González and Sergey I. Bokarev and Ria Broer and Roberto Cacciari and Paul B. Calio and Rebecca K. Carlson and Rafael Carvalho Couto and Luis Cerdán and Liviu F. Chibotaru and Nicholas F. Chilton and Jonathan Richard Church and Irene Conti and Sonia Coriani and Juliana Cuéllar-Zuquin and Razan E. Daoud and Nike Dattani and Piero Decleva and Coen de Graaf and Mickaël G. Delcey and Luca De Vico and Werner Dobrautz and Sijia S. Dong and Rulin Feng and Nicolas Ferré and Michael Filatov(Gulak) and Laura Gagliardi and Marco Garavelli and Leticia González and Yafu Guan and Meiyuan Guo and Matthew R. Hennefarth and Matthew R. Hermes and Chad E. Hoyer and Miquel Huix-Rotllant and Vishal Kumar Jaiswal and Andy Kaiser and Danil S. Kaliakin and Marjan Khamesian and Daniel S. King and Vladislav Kochetov and Marek Krośnicki and Arpit Arun Kumaar and Ernst D. Larsson and Susi Lehtola and Marie-Bernadette Lepetit and Hans Lischka and Pablo López Ríos and Marcus Lundberg and Dongxia Ma and Sebastian Mai and Philipp Marquetand and Isabella C. D. Merritt and Francesco Montorsi and Maximilian Mörchen and Artur Nenov and Vu Ha Anh Nguyen and Yoshio Nishimoto and Meagan S. Oakley and Massimo Olivucci and Markus Oppel and Daniele Padula and Riddhish Pandharkar and Quan Manh Phung and Felix Plasser and Gerardo Raggi and Elisa Rebolini and Markus Reiher and Ivan Rivalta and Daniel Roca-Sanjuán and Thies Romig and Arta Anushirwan Safari and Aitor Sánchez-Mansilla and Andrew M. Sand and Igor Schapiro and Thais R. Scott and Javier Segarra-Martí and Francesco Segatta and Dumitru-Claudiu Sergentu and Prachi Sharma and Ron Shepard and Yinan Shu and Jakob K. Staab and Tjerk P. Straatsma and Lasse Kragh Sørensen and Bruno Nunes Cabral Tenorio and Donald G. Truhlar and Liviu Ungur and Morgane Vacher and Valera Veryazov and Torben Arne Voß and Oskar Weser and Dihua Wu and Xuchun Yang and David Yarkony and Chen Zhou and J. Patrick Zobel and Roland Lindh},
doi = {10.1021/acs.jctc.3c00182},
issn = {1549-9626},
year = {2023},
date = {2023-10-24},
journal = {J. Chem. Theory Comput.},
volume = {19},
number = {20},
pages = {6933--6991},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jiyang He; Benjamin Favier; Michel Rieutord; Stéphane Le Dizès
Internal shear layers in librating spherical shells: the case of attractors Article de journal
Dans: J. Fluid Mech., vol. 974, 2023, ISSN: 1469-7645.
@article{He2023,
title = {Internal shear layers in librating spherical shells: the case of attractors},
author = {Jiyang He and Benjamin Favier and Michel Rieutord and Stéphane Le Dizès},
doi = {10.1017/jfm.2023.761},
issn = {1469-7645},
year = {2023},
date = {2023-10-23},
journal = {J. Fluid Mech.},
volume = {974},
publisher = {Cambridge University Press (CUP)},
abstract = {Following our previous work on periodic ray paths (He et al. , J. Fluid Mech. , vol. 939, 2022, A3), we study asymptotically and numerically the structure of internal shear layers for very small Ekman numbers in a three-dimensional spherical shell and in a two-dimensional cylindrical annulus when the rays converge towards an attractor. We first show that the asymptotic solution obtained by propagating the self-similar solution generated at the critical latitude on the librating inner core describes the main features of the numerical solution. The internal shear layer structure and the scaling for its width and velocity amplitude in
$E^{1/3}$
and
$E^{1/12}$
, respectively, are recovered. The amplitude of the asymptotic solution is shown to decrease to
$E^{1/6}$
when it reaches the attractor, as is also observed numerically. However, some discrepancies are observed close to the particular attractors along which the phase of the wave beam remains constant. Another asymptotic solution close to those attractors is then constructed using the model of Ogilvie (J. Fluid Mech. , vol. 543, 2005, pp. 19–44). The solution obtained for the velocity has an
$O(E^{1/6})$
amplitude, but a self-similar structure different from the critical-latitude solution. It also depends on the Ekman pumping at the contact points of the attractor with the boundaries. We demonstrate that it reproduces correctly the numerical solution. Surprisingly, the numerical solution close to an attractor with phase shift (that is, an attractor touching the axis in three or two dimensions with a symmetric forcing) is also found to be
$O(E^{1/6})$
, but its amplitude is much weaker. However, its asymptotic structure remains a mystery. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ritam Mansour; Josene M. Toldo; Saikat Mukherjee; Max Pinheiro; Mario Barbatti
Temperature effects on the internal conversion of excited adenine and adenosine Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 25, no. 40, p. 27083–27093, 2023, ISSN: 1463-9084.
@article{Mansour2023,
title = {Temperature effects on the internal conversion of excited adenine and adenosine},
author = {Ritam Mansour and Josene M. Toldo and Saikat Mukherjee and Max Pinheiro and Mario Barbatti},
doi = {10.1039/d3cp03234e},
issn = {1463-9084},
year = {2023},
date = {2023-10-18},
journal = {Phys. Chem. Chem. Phys.},
volume = {25},
number = {40},
pages = {27083--27093},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Temperature has a strikingly different impact on adenine and adenosine photodynamics. Surface hopping reveals the reason underlying it. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Rongyu Sun; Emilie Viaud; Rajesh Nomula; Jean‐Valère Naubron; Nicolas Daugey; Thierry Buffeteau; Frédéric Castet; Patrick Y. Toullec; Stéphane Quideau; Philippe A. Peixoto
Asymmetric Allenylation of Alkynes mediated by Chiral Organoselenated Reagents under Oxidative Conditions Article de journal
Dans: Angew Chem Int Ed, vol. 62, no. 42, 2023, ISSN: 1521-3773.
@article{Sun2023,
title = {Asymmetric Allenylation of Alkynes mediated by Chiral Organoselenated Reagents under Oxidative Conditions},
author = {Rongyu Sun and Emilie Viaud and Rajesh Nomula and Jean‐Valère Naubron and Nicolas Daugey and Thierry Buffeteau and Frédéric Castet and Patrick Y. Toullec and Stéphane Quideau and Philippe A. Peixoto},
doi = {10.1002/anie.202310436},
issn = {1521-3773},
year = {2023},
date = {2023-10-16},
journal = {Angew Chem Int Ed},
volume = {62},
number = {42},
publisher = {Wiley},
abstract = {Abstract The reactivity of novel chiral lactamide‐substituted diselenide‐based reagents under oxidative conditions was exploited to develop a metal‐free method for the preparation of enantioenriched allenylamides from simple alkynes in good yields, and with enantiomeric excesses up to 99 %. The key of the success in this method is attributed to the hydrogen‐bonded lactamide appendages that ensure configurational stability of chiral vinyl selenoxide intermediates for an optimal enantiotopic β‐syn ‐elimination step. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jack Dalton; Josene M. Toldo; Florent Allais; Mario Barbatti; Vasilios G. Stavros
Understanding the Impact of Symmetrical Substitution on the Photodynamics of Sinapate Esters Using Gas-Phase Ultrafast Spectroscopy Article de journal
Dans: J. Phys. Chem. Lett., vol. 14, no. 39, p. 8771–8779, 2023, ISSN: 1948-7185.
@article{Dalton2023,
title = {Understanding the Impact of Symmetrical Substitution on the Photodynamics of Sinapate Esters Using Gas-Phase Ultrafast Spectroscopy},
author = {Jack Dalton and Josene M. Toldo and Florent Allais and Mario Barbatti and Vasilios G. Stavros},
doi = {10.1021/acs.jpclett.3c02134},
issn = {1948-7185},
year = {2023},
date = {2023-10-05},
journal = {J. Phys. Chem. Lett.},
volume = {14},
number = {39},
pages = {8771--8779},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Marc Alías-Rodríguez; Swarnendu Bhattacharyya; Miquel Huix-Rotllant
Ultrafast Spin Crossover Photochemical Mechanism in [FeII(2,2′-bipyridine)3]2+] Revealed by Quantum Dynamics Article de journal
Dans: J. Phys. Chem. Lett., vol. 14, no. 38, p. 8571–8576, 2023, ISSN: 1948-7185.
@article{Alías-Rodríguez2023b,
title = {Ultrafast Spin Crossover Photochemical Mechanism in [Fe^{II}(2,2′-bipyridine)_{3}]^{2+}] Revealed by Quantum Dynamics},
author = {Marc Alías-Rodríguez and Swarnendu Bhattacharyya and Miquel Huix-Rotllant},
doi = {10.1021/acs.jpclett.3c02201},
issn = {1948-7185},
year = {2023},
date = {2023-09-28},
journal = {J. Phys. Chem. Lett.},
volume = {14},
number = {38},
pages = {8571--8576},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mariana T. do Casal; Josene M. Toldo; Mario Barbatti; Felix Plasser
Classification of doubly excited molecular electronic states Article de journal
Dans: Chem. Sci., vol. 14, no. 15, p. 4012–4026, 2023, ISSN: 2041-6539.
@article{doCasal2023,
title = {Classification of doubly excited molecular electronic states},
author = {Mariana T. do Casal and Josene M. Toldo and Mario Barbatti and Felix Plasser},
doi = {10.1039/d2sc06990c},
issn = {2041-6539},
year = {2023},
date = {2023-04-12},
journal = {Chem. Sci.},
volume = {14},
number = {15},
pages = {4012--4026},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {A rigorous classification scheme for doubly excited states is proposed and the different possible types are exemplified in various molecules. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Max Pinheiro Jr; Shuang Zhang; Pavlo O. Dral; Mario Barbatti
WS22 database, Wigner Sampling and geometry interpolation for configurationally diverse molecular datasets Article de journal
Dans: Sci Data, vol. 10, no. 1, 2023, ISSN: 2052-4463.
@article{PinheiroJr2023,
title = {WS22 database, Wigner Sampling and geometry interpolation for configurationally diverse molecular datasets},
author = {Max Pinheiro Jr and Shuang Zhang and Pavlo O. Dral and Mario Barbatti},
doi = {10.1038/s41597-023-01998-3},
issn = {2052-4463},
year = {2023},
date = {2023-02-15},
journal = {Sci Data},
volume = {10},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {<jats:title>Abstract</jats:title><jats:p>Multidimensional surfaces of quantum chemical properties, such as potential energies and dipole moments, are common targets for machine learning, requiring the development of robust and diverse databases extensively exploring molecular configurational spaces. Here we composed the WS22 database covering several quantum mechanical (QM) properties (including potential energies, forces, dipole moments, polarizabilities, HOMO, and LUMO energies) for ten flexible organic molecules of increasing complexity and with up to 22 atoms. This database consists of 1.18 million equilibrium and non-equilibrium geometries carefully sampled from Wigner distributions centered at different equilibrium conformations (either at the ground or excited electronic states) and further augmented with interpolated structures. The diversity of our datasets is demonstrated by visualizing the geometries distribution with dimensionality reduction as well as via comparison of statistical features of the QM properties with those available in existing datasets. Our sampling targets broader quantum mechanical distribution of the configurational space than provided by commonly used sampling through classical molecular dynamics, upping the challenge for machine learning models.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
D. Lemasquerier; B. Favier; M. Le Bars
Zonal jets experiments in the gas giants’ zonostrophic regime Article de journal
Dans: Icarus, vol. 390, 2023, ISSN: 0019-1035.
@article{Lemasquerier2023,
title = {Zonal jets experiments in the gas giants’ zonostrophic regime},
author = {D. Lemasquerier and B. Favier and M. Le Bars},
doi = {10.1016/j.icarus.2022.115292},
issn = {0019-1035},
year = {2023},
date = {2023-02-15},
journal = {Icarus},
volume = {390},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Simone Bonfrate; Nicolas Ferré; Miquel Huix-Rotllant
An efficient electrostatic embedding QM/MM method using periodic boundary conditions based on particle-mesh Ewald sums and electrostatic potential fitted charge operators Article de journal
Dans: vol. 158, no. 2, 2023, ISSN: 1089-7690.
@article{Bonfrate2023,
title = {An efficient electrostatic embedding QM/MM method using periodic boundary conditions based on particle-mesh Ewald sums and electrostatic potential fitted charge operators},
author = {Simone Bonfrate and Nicolas Ferré and Miquel Huix-Rotllant},
doi = {10.1063/5.0133646},
issn = {1089-7690},
year = {2023},
date = {2023-01-14},
volume = {158},
number = {2},
publisher = {AIP Publishing},
abstract = {Hybrid quantum mechanics/molecular mechanics (QM/MM) models are successful at describing the properties and reactivity of biological macromolecules. Combining ab initio QM/MM methods and periodic boundary conditions (PBC) is currently the optimal approach for modeling chemical processes in an infinite environment, but frequently, these models are too time-consuming for general applicability to biological systems in a solution. Here, we define a simple and efficient electrostatic embedding QM/MM model in PBC, combining the benefits of electrostatic potential fitted atomic charges and particle-mesh Ewald sums, which can efficiently treat systems of an arbitrary size at a reasonable computational cost. To illustrate this, we apply our scheme to extract the lowest singlet excitation energies from a model for Arabidopsis thaliana cryptochrome 1 containing circa 93 000 atoms, accurately reproducing the experimental absorption maximum. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Grégoire David; Nicolas Ferré; Boris Le Guennic
Consistent Evaluation of Magnetic Exchange Couplings in Multicenter Compounds in KS-DFT: The Recomposition Method Article de journal
Dans: J. Chem. Theory Comput., vol. 19, no. 1, p. 157–173, 2023, ISSN: 1549-9626.
@article{David2022,
title = {Consistent Evaluation of Magnetic Exchange Couplings in Multicenter Compounds in KS-DFT: The Recomposition Method},
author = {Grégoire David and Nicolas Ferré and Boris Le Guennic},
doi = {10.1021/acs.jctc.2c01022},
issn = {1549-9626},
year = {2023},
date = {2023-01-10},
journal = {J. Chem. Theory Comput.},
volume = {19},
number = {1},
pages = {157--173},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miquel Huix-Rotllant; Karno Schwinn; Vladimir Pomogaev; Maryam Farmani; Nicolas Ferré; Seunghoon Lee; Cheol Ho Choi
Photochemistry of Thymine in Solution and DNA Revealed by an Electrostatic Embedding QM/MM Combined with Mixed-Reference Spin-Flip TDDFT Article de journal
Dans: J. Chem. Theory Comput., vol. 19, no. 1, p. 147–156, 2023, ISSN: 1549-9626.
@article{Huix-Rotllant2022,
title = {Photochemistry of Thymine in Solution and DNA Revealed by an Electrostatic Embedding QM/MM Combined with Mixed-Reference Spin-Flip TDDFT},
author = {Miquel Huix-Rotllant and Karno Schwinn and Vladimir Pomogaev and Maryam Farmani and Nicolas Ferré and Seunghoon Lee and Cheol Ho Choi},
doi = {10.1021/acs.jctc.2c01010},
issn = {1549-9626},
year = {2023},
date = {2023-01-10},
journal = {J. Chem. Theory Comput.},
volume = {19},
number = {1},
pages = {147--156},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2022
Miquel Huix-Rotllant; Karno Schwinn; Vladimir Pomogaev; Maryam Farmani; Nicolas Ferre; Seunghoon Lee; Cheol Ho Choi
2022.
@unpublished{Huix-Rotllant2022b,
title = {Photochemistry of thymine in solution and DNA revealed by an electrostatic embedding QM/MM combined with mixed-reference spin-flip TDDFT},
author = {Miquel Huix-Rotllant and Karno Schwinn and Vladimir Pomogaev and Maryam Farmani and Nicolas Ferre and Seunghoon Lee and Cheol Ho Choi},
url = {https://chemrxiv.org/engage/chemrxiv/article-details/63885f6debc1c741aed9bf03},
doi = {10.26434/chemrxiv-2022-g2jf3},
year = {2022},
date = {2022-12-01},
publisher = {American Chemical Society (ACS)},
abstract = {The photochemistry of nucleobases, important for their role as building blocks of DNA, is largely affected by the electrostatic environment in which they are soaked. For example, despite the numerous studies of thymine in solution and DNA, there is still a debate on the photochemical deactivation pathways after UV absorption. Many theoretical models are oversimplified due to the lack of computationally accurate and efficient electronic structure methodologies that capture excited state electron correlation effects when nucleobases are embedded in large electrostatic media. Here, we combine mixed-reference spin-flip time-dependent density-functional theory (MRSF-TDDFT) with electrostatic embedding QM/MM using electrostatic potential fitting (ESPF) atomic charges, as a strategy to accurately and efficiently describe the electronic structure of chromophores polarized by an electrostatic medium. In particular, we develop analytic expressions for the energy and gradient of MRSF/MM based on the ESPF coupling using atom-centered grids and total charge conservation. We apply this methodology to the study of solvation effects on thymine photochemistry in water and thymine dimers in DNA. In the former, the combination of trajectory surface hopping (TSH) non-adiabatic molecular dynamics (NAMD) with MRSF/MM remarkably revealed the accelerated deactivation decay pathways, which is consistent with the experimental decay time of ~ 400 fs. The enhanced hopping rate can be explained by the preferential stabilization of corresponding conical interactions due to their increased dipole moments. Structurally, it is a consequence of characteristic methyl puckered geometries near the conical intersection region. For the thymine dimer in B-DNA, we found new photochemical pathways through conical intersections that could explain the formation of cyclobutadiene dimers and 6-4 photoproducts. },
keywords = {},
pubstate = {published},
tppubtype = {unpublished}
}
Adrian van Kan; Benjamin Favier; Keith Julien; Edgar Knobloch
Spontaneous suppression of inverse energy cascade in instability-driven 2-D turbulence Article de journal
Dans: J. Fluid Mech., vol. 952, 2022, ISSN: 1469-7645.
@article{vanKan2022,
title = {Spontaneous suppression of inverse energy cascade in instability-driven 2-D turbulence},
author = {Adrian van Kan and Benjamin Favier and Keith Julien and Edgar Knobloch},
doi = {10.1017/jfm.2022.935},
issn = {1469-7645},
year = {2022},
date = {2022-12-01},
journal = {J. Fluid Mech.},
volume = {952},
publisher = {Cambridge University Press (CUP)},
abstract = {Instabilities of fluid flows often generate turbulence. Using extensive direct numerical simulations, we study two-dimensional turbulence driven by a wavenumber-localised instability superposed on stochastic forcing, in contrast to previous studies of state-independent forcing. As the contribution of the instability forcing, measured by a parameter
$gamma$
, increases, the system undergoes two transitions. For
$gamma$
below a first threshold, a regular large-scale vortex condensate forms. Above this threshold, shielded vortices (SVs) emerge within the condensate. At a second, larger value of
$gamma$
, the condensate breaks down, and a gas of weakly interacting vortices with broken symmetry spontaneously emerges, characterised by preponderance of vortices of one sign only and suppressed inverse energy cascade. The latter transition is shown to depend on the damping mechanism. The number density of SVs in the broken symmetry state slowly increases via a random nucleation process. Bistability is observed between the condensate and mixed SV-condensate states. Our findings provide new evidence for a strong dependence of two-dimensional turbulence phenomenology on the forcing. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gabriel Braun; Itamar Borges; Adélia J. A. Aquino; Hans Lischka; Felix Plasser; Silmar A. do Monte; Elizete Ventura; Saikat Mukherjee; Mario Barbatti
Non-Kasha fluorescence of pyrene emerges from a dynamic equilibrium between excited states Article de journal
Dans: vol. 157, no. 15, 2022, ISSN: 1089-7690.
@article{Braun2022,
title = {Non-Kasha fluorescence of pyrene emerges from a dynamic equilibrium between excited states},
author = {Gabriel Braun and Itamar Borges and Adélia J. A. Aquino and Hans Lischka and Felix Plasser and Silmar A. do Monte and Elizete Ventura and Saikat Mukherjee and Mario Barbatti},
doi = {10.1063/5.0113908},
issn = {1089-7690},
year = {2022},
date = {2022-10-21},
volume = {157},
number = {15},
publisher = {AIP Publishing},
abstract = {Pyrene fluorescence after a high-energy electronic excitation exhibits a prominent band shoulder not present after excitation at low energies. The standard assignment of this shoulder as a non-Kasha emission from the second-excited state (S2) has been recently questioned. To elucidate this issue, we simulated the fluorescence of pyrene using two different theoretical approaches based on vertical convolution and nonadiabatic dynamics with nuclear ensembles. To conduct the necessary nonadiabatic dynamics simulations with high-lying electronic states and deal with fluorescence timescales of about 100 ns of this large molecule, we developed new computational protocols. The results from both approaches confirm that the band shoulder is, in fact, due to S2 emission. We show that the non-Kasha behavior is a dynamic-equilibrium effect not caused by a metastable S2 minimum. However, it requires considerable vibrational energy, which can only be achieved in collisionless regimes after transitions into highly excited states. This strict condition explains why the S2 emission was not observed in some experiments. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mariana T. do Casal; Josene M. Toldo; Felix Plasser; Mario Barbatti
Using diketopyrrolopyrroles to stabilize double excitation and control internal conversion Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 24, no. 38, p. 23279–23288, 2022, ISSN: 1463-9084.
@article{doCasal2022,
title = {Using diketopyrrolopyrroles to stabilize double excitation and control internal conversion},
author = {Mariana T. do Casal and Josene M. Toldo and Felix Plasser and Mario Barbatti},
doi = {10.1039/d2cp03533b},
issn = {1463-9084},
year = {2022},
date = {2022-10-05},
journal = {Phys. Chem. Chem. Phys.},
volume = {24},
number = {38},
pages = {23279--23288},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Diketopyrrolopyrrole (DPP) units can be used to stabilize the doubly excited state (2Ag ) and control internal conversion by increasing the number of π-electrons. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Benjamin Kadoch; Diego del-Castillo-Negrete; Wouter J. T. Bos; Kai Schneider
Lagrangian conditional statistics and flow topology in edge plasma turbulence Article de journal
Dans: vol. 29, no. 10, 2022, ISSN: 1089-7674.
@article{Kadoch2022,
title = {Lagrangian conditional statistics and flow topology in edge plasma turbulence},
author = {Benjamin Kadoch and Diego del-Castillo-Negrete and Wouter J. T. Bos and Kai Schneider},
doi = {10.1063/5.0098501},
issn = {1089-7674},
year = {2022},
date = {2022-10-01},
volume = {29},
number = {10},
publisher = {AIP Publishing},
abstract = {Lagrangian statistics and particle transport in edge plasma turbulence are investigated using the Hasegawa–Wakatani model and its modified version. The latter shows the emergence of pronounced zonal flows. Different values of the adiabaticity parameter are considered. The main goal is to characterize the role of coherent structures, i.e., vortices and zonal flows, and their impact on the Lagrangian statistics of particles. Computationally intensive long time simulations following ensembles of test particles over hundreds of eddy turnover times are considered in statistically stationary turbulent flows. The flow topology is characterized using the Lagrangian Okubo–Weiss criterion in order to split the flow into topologically different domains. In elliptic and hyperbolic regions, the probability density functions (PDFs) of the residence time have self-similar algebraic decaying tails. However, in the intermediate regions, the PDFs exhibit exponentially decaying tails. Topologically conditioned PDFs of the Lagrangian velocity, and acceleration and density fluctuations are likewise computed. The differences between the classical Hasegawa–Wakatani system and its modified version are assessed, and the role of zonal flows is highlighted. The density flux spectrum, which characterizes the contributions of different length scales, is studied, and its inertial scaling is found to be in agreement with predictions based on dimensional arguments. Analyzing the angular change of particle tracers at different time scales, corresponding to coarse grained curvature, completes the study, and these multiscale geometric statistics quantify the directional properties of the particle motion in different flow regimes. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Léo Chaussy; Denis Hagebaum-Reignier; Stéphane Humbel; Paola Nava
Accurate computed singlet–triplet energy differences for cobalt systems: implication for two-state reactivity Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 24, no. 36, p. 21841–21852, 2022, ISSN: 1463-9084.
@article{Chaussy2022,
title = {Accurate computed singlet–triplet energy differences for cobalt systems: implication for two-state reactivity},
author = {Léo Chaussy and Denis Hagebaum-Reignier and Stéphane Humbel and Paola Nava},
doi = {10.1039/d2cp03291k},
issn = {1463-9084},
year = {2022},
date = {2022-09-21},
journal = {Phys. Chem. Chem. Phys.},
volume = {24},
number = {36},
pages = {21841--21852},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Accurate singlet–triplet energy differences for cobalt and rhodium complexes are obtained at high computational level (MRCISD, CASPT2, CCSD(T), DFT). Our results have an impact on the mechanism of cobalt cycloaddition reactions. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shang-Gui Cai; Sajad Mozaffari; Jérôme Jacob; Pierre Sagaut
Application of immersed boundary based turbulence wall modeling to the Ahmed body aerodynamics Article de journal
Dans: vol. 34, no. 9, 2022, ISSN: 1089-7666.
@article{Cai2022,
title = {Application of immersed boundary based turbulence wall modeling to the Ahmed body aerodynamics},
author = {Shang-Gui Cai and Sajad Mozaffari and Jérôme Jacob and Pierre Sagaut},
doi = {10.1063/5.0098232},
issn = {1089-7666},
year = {2022},
date = {2022-09-01},
volume = {34},
number = {9},
publisher = {AIP Publishing},
abstract = {This paper applies a recently developed immersed boundary-turbulence wall modeling approach to turbulent flows over a generic car geometry, known as the Ahmed body, under massive flow separation within a lattice Boltzmann solver. Although the immersed boundary method combined with hierarchical Cartesian grid offers high flexibility in automatic grid generation around complex geometries, the near-wall solution is significantly deteriorated compared to the body-fitted simulation, especially when coupled to wall models for turbulent flows at high Reynolds number. Enhanced wall treatments have been proposed in the literature and validated for attached flow configurations. In this work, the Ahmed body with a slant surface of angle 35° is considered where the flow separates massively over the slant surface and the vertical base. The large eddy simulation is performed with a Reynolds stress constraint near-wall. The eddy viscosity is computed dynamically by taking into account the actually resolved Reynolds stresses. It approaches the mixing length eddy viscosity in attached boundary layers and returns to the subgrid eddy viscosity in detached boundary layers. An explicit equilibrium wall model has also been proposed to accelerate the calculation. Comparison with the no-slip boundary condition on the separated surfaces shows that the near-wall treatments with the equilibrium wall model operate reasonably well on both attached and detached boundary layers. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Daniel W. Polak; Mariana T. do Casal; Josene M. Toldo; Xiantao Hu; Giordano Amoruso; Olivia Pomeranc; Martin Heeney; Mario Barbatti; Michael N. R. Ashfold; Thomas A. A. Oliver
Probing the electronic structure and photophysics of thiophene–diketopyrrolopyrrole derivatives in solution Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 24, no. 34, p. 20138–20151, 2022, ISSN: 1463-9084.
@article{Polak2022,
title = {Probing the electronic structure and photophysics of thiophene–diketopyrrolopyrrole derivatives in solution},
author = {Daniel W. Polak and Mariana T. do Casal and Josene M. Toldo and Xiantao Hu and Giordano Amoruso and Olivia Pomeranc and Martin Heeney and Mario Barbatti and Michael N. R. Ashfold and Thomas A. A. Oliver},
doi = {10.1039/d2cp03238d},
issn = {1463-9084},
year = {2022},
date = {2022-08-31},
journal = {Phys. Chem. Chem. Phys.},
volume = {24},
number = {34},
pages = {20138--20151},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {The interplay of two excited electronic states dictates the ultrafast dynamics and functionality of thiophene-diketopyrrolopyrrole derivatives. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Daniel W. Polak; Mariana T. do Casal; Josene M. Toldo; Xiantao Hu; Giordano Amoruso; Olivia Pomeranc; Martin Heeney; Mario Barbatti; Michael N. R. Ashfold; Thomas A. A. Oliver
Probing the electronic structure and photophysics of thiophene–diketopyrrolopyrrole derivatives in solution Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 24, no. 34, p. 20138–20151, 2022, ISSN: 1463-9084.
@article{Polak2022b,
title = {Probing the electronic structure and photophysics of thiophene–diketopyrrolopyrrole derivatives in solution},
author = {Daniel W. Polak and Mariana T. do Casal and Josene M. Toldo and Xiantao Hu and Giordano Amoruso and Olivia Pomeranc and Martin Heeney and Mario Barbatti and Michael N. R. Ashfold and Thomas A. A. Oliver},
doi = {10.1039/d2cp03238d},
issn = {1463-9084},
year = {2022},
date = {2022-08-31},
journal = {Phys. Chem. Chem. Phys.},
volume = {24},
number = {34},
pages = {20138--20151},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {The interplay of two excited electronic states dictates the ultrafast dynamics and functionality of thiophene-diketopyrrolopyrrole derivatives. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Louis-Alexandre Couston; Joseph Nandaha; Benjamin Favier
Competition between Rayleigh–Bénard and horizontal convection Article de journal
Dans: J. Fluid Mech., vol. 947, 2022, ISSN: 1469-7645.
@article{Couston2022,
title = {Competition between Rayleigh–Bénard and horizontal convection},
author = {Louis-Alexandre Couston and Joseph Nandaha and Benjamin Favier},
doi = {10.1017/jfm.2022.613},
issn = {1469-7645},
year = {2022},
date = {2022-08-22},
journal = {J. Fluid Mech.},
volume = {947},
publisher = {Cambridge University Press (CUP)},
abstract = {We investigate the dynamics of a fluid layer subject to a bottom heat flux and a top monotonically increasing temperature profile driving horizontal convection (HC). We use direct numerical simulations and consider a large range of flux-based Rayleigh numbers
$10^6 leq Ra_F leq 10^9$
and imposed top horizontal to bottom vertical heat flux ratios
$0 leq varLambda leq 1$
. The fluid domain is a closed two-dimensional box with aspect ratio
$4leq varGamma leq 16$
and we consider no-slip boundaries and adiabatic side walls. We demonstrate a regime transition from Rayleigh–Bénard (RB) convection to HC at
$varLambda approx 10^{-2}$
, which is independent of
$Ra_F$
and
$varGamma$
. At small
$varLambda$
, the flow is organised in multiple overturning cells with approximately unit aspect ratio, whereas at large
$varLambda$
a single cell is obtained. The RB-relevant Nusselt number scaling with
$Ra_F$
and the HC-relevant Nusselt number scaling with the horizontal Rayleigh number
$Ra_L=Ra_FvarLambda varGamma ^4$
are in good agreement with previous results from classical RB convection and HC studies in the limit
$varLambda ll 10^{-2}$
and
$varLambda gg 10^{-2}$
, respectively. We demonstrate that the system is multi-stable near the transition
$varLambda approx 10^{-2}$
, i.e. the exact number of cells not only depends on
$varLambda$
but also on the system's history. Our results suggest that subglacial lakes, which motivated this study, are likely to be dominated by RB convection, unless the slope of the ice–water interface, which controls the horizontal temperature gradient via the pressure-dependence of the freezing point, is greater than unity. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Saikat Mukherjee; Mario Barbatti
A Hessian-Free Method to Prevent Zero-Point Energy Leakage in Classical Trajectories Article de journal
Dans: J. Chem. Theory Comput., vol. 18, no. 7, p. 4109–4116, 2022, ISSN: 1549-9626.
@article{Mukherjee2022,
title = {A Hessian-Free Method to Prevent Zero-Point Energy Leakage in Classical Trajectories},
author = {Saikat Mukherjee and Mario Barbatti},
doi = {10.1021/acs.jctc.2c00216},
issn = {1549-9626},
year = {2022},
date = {2022-07-12},
journal = {J. Chem. Theory Comput.},
volume = {18},
number = {7},
pages = {4109--4116},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Claude Gregoire; Lionel Spinelli; Sergio Villazala-Merino; Laurine Gil; María Pía Holgado; Myriam Moussa; Chuang Dong; Ana Zarubica; Mathieu Fallet; Jean-Marc Navarro; Bernard Malissen; Pierre Milpied; Mauro Gaya
Viral infection engenders bona fide and bystander subsets of lung-resident memory B cells through a permissive mechanism Article de journal
Dans: Immunity, vol. 55, no. 7, p. 1216–1233.e9, 2022, ISSN: 1074-7613.
@article{Gregoire2022,
title = {Viral infection engenders bona fide and bystander subsets of lung-resident memory B cells through a permissive mechanism},
author = {Claude Gregoire and Lionel Spinelli and Sergio Villazala-Merino and Laurine Gil and María Pía Holgado and Myriam Moussa and Chuang Dong and Ana Zarubica and Mathieu Fallet and Jean-Marc Navarro and Bernard Malissen and Pierre Milpied and Mauro Gaya},
doi = {10.1016/j.immuni.2022.06.002},
issn = {1074-7613},
year = {2022},
date = {2022-07-12},
journal = {Immunity},
volume = {55},
number = {7},
pages = {1216--1233.e9},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ritam Mansour; Saikat Mukherjee; Max Pinheiro; Jennifer A. Noble; Christophe Jouvet; Mario Barbatti
Pre-Dewar structure modulates protonated azaindole photodynamics Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 24, no. 20, p. 12346–12353, 2022, ISSN: 1463-9084.
@article{Mansour2022,
title = {Pre-Dewar structure modulates protonated azaindole photodynamics},
author = {Ritam Mansour and Saikat Mukherjee and Max Pinheiro and Jennifer A. Noble and Christophe Jouvet and Mario Barbatti},
doi = {10.1039/d2cp01056a},
issn = {1463-9084},
year = {2022},
date = {2022-05-25},
journal = {Phys. Chem. Chem. Phys.},
volume = {24},
number = {20},
pages = {12346--12353},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Nonadiabatic surface hopping simulations demonstrate that the lifetime of the S3 state of protonated 7-azaindole is much longer than that of protonated 6-azaindole due to a puckered pre-Dewar structure in the S3 minimum of the 7-isomer. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
G Bonnet; E Nezri; K Kraljic; C Schimd
Morphology of dark matter haloes beyond triaxiality Article de journal
Dans: vol. 513, no. 4, p. 4929–4944, 2022, ISSN: 1365-2966.
@article{Bonnet2022,
title = {Morphology of dark matter haloes beyond triaxiality},
author = {G Bonnet and E Nezri and K Kraljic and C Schimd},
doi = {10.1093/mnras/stac1222},
issn = {1365-2966},
year = {2022},
date = {2022-05-23},
volume = {513},
number = {4},
pages = {4929--4944},
publisher = {Oxford University Press (OUP)},
abstract = {ABSTRACT
The morphology of haloes inform about both cosmological and galaxy formation models. We use the Minkowski Functionals (MFs) to characterize the actual morphology of haloes, only partially captured by smooth density profile, going beyond the spherical or ellipsoidal symmetry. We employ semi-analytical haloes with NFW and αβγ-profile and spherical or ellipsoidal shape to obtain a clear interpretation of MFs as function of inner and outer slope, concentration and sphericity parameters. We use the same models to mimic the density profile of N-body haloes, showing that their MFs clearly differ as sensitive to internal substructures. This highlights the benefit of MFs at the halo scales as promising statistics to improve the spatial modelling of dark matter, crucial for future lensing, Sunyaev–Zel’dovich, and X-ray mass maps as well as dark matter detection based on high-accuracy data. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Taha; S. Zhao; A. Lamorlette; J. L. Consalvi; P. Boivin
Lattice-Boltzmann modeling of buoyancy-driven turbulent flows Article de journal
Dans: vol. 34, no. 5, 2022, ISSN: 1089-7666.
@article{Taha2022,
title = {Lattice-Boltzmann modeling of buoyancy-driven turbulent flows},
author = {M. Taha and S. Zhao and A. Lamorlette and J. L. Consalvi and P. Boivin},
doi = {10.1063/5.0088409},
issn = {1089-7666},
year = {2022},
date = {2022-05-01},
volume = {34},
number = {5},
publisher = {AIP Publishing},
abstract = {The pressure-based hybrid lattice-Boltzmann method presented by Farag et al. [“A pressure-based regularized lattice-Boltzmann method for the simulation of compressible flows,” Phys. Fluids 32, 066106 (2020)] is assessed for the simulation of buoyancy driven flows. The model is first validated on Rayleigh–Benard and Rayleigh–Taylor two-dimensional cases. A large-eddy simulation of a turbulent forced plume is then carried out, and results are validated against experiments. Good overall agreement is obtained, both for mean and fluctuation quantities, as well as global entrainment. The self-similarity characteristic of the plume in the far-field is also recovered. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
H Bufferand; J Balbin; S Baschetti; J Bucalossi; G Ciraolo; Ph Ghendrih; R Mao; N Rivals; P Tamain; H Yang; G Giorgiani; F Schwander; M Scotto d’Abusco; E Serre; J Denis; Y Marandet; M Raghunathan; P Innocente; D Galassi;
Implementation of multi-component Zhdanov closure in SOLEDGE3X Article de journal
Dans: Plasma Phys. Control. Fusion, vol. 64, no. 5, 2022, ISSN: 1361-6587.
@article{Bufferand2022,
title = {Implementation of multi-component Zhdanov closure in SOLEDGE3X},
author = {H Bufferand and J Balbin and S Baschetti and J Bucalossi and G Ciraolo and Ph Ghendrih and R Mao and N Rivals and P Tamain and H Yang and G Giorgiani and F Schwander and M Scotto d’Abusco and E Serre and J Denis and Y Marandet and M Raghunathan and P Innocente and D Galassi and },
doi = {10.1088/1361-6587/ac4fac},
issn = {1361-6587},
year = {2022},
date = {2022-05-01},
journal = {Plasma Phys. Control. Fusion},
volume = {64},
number = {5},
publisher = {IOP Publishing},
abstract = {Abstract
The multi-component fluid closure derived by Zhdanov (2002 Transport Processes in Multicomponent Plasma (London: Taylor and Francis)) is implemented in the fluid code SOLEDGE3X-EIRENE to deal with arbitrary edge plasma composition. The closure assumes no distinction between species such as light versus heavy species separation. The work of Zhdanov is rewritten in a matricial form in order to clearly link friction forces and heat fluxes to the different species velocities and temperature gradients. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
G. Wissocq; T. Coratger; G. Farag; S. Zhao; P. Boivin; P. Sagaut
Restoring the conservativity of characteristic-based segregated models: Application to the hybrid lattice Boltzmann method Article de journal
Dans: vol. 34, no. 4, 2022, ISSN: 1089-7666.
@article{Wissocq2022,
title = {Restoring the conservativity of characteristic-based segregated models: Application to the hybrid lattice Boltzmann method},
author = {G. Wissocq and T. Coratger and G. Farag and S. Zhao and P. Boivin and P. Sagaut},
doi = {10.1063/5.0083377},
issn = {1089-7666},
year = {2022},
date = {2022-04-01},
volume = {34},
number = {4},
publisher = {AIP Publishing},
abstract = {A general methodology is introduced to build conservative numerical models for fluid simulations based on segregated schemes, where mass, momentum, and energy equations are solved by different methods. It is especially designed here for developing new numerical discretizations of the total energy equation and adapted to a thermal coupling with the lattice Boltzmann method (LBM). The proposed methodology is based on a linear equivalence with standard discretizations of the entropy equation, which, as a characteristic variable of the Euler system, allows efficiently decoupling the energy equation with the LBM. To this extent, any LBM scheme is equivalently written under a finite-volume formulation involving fluxes, which are further included in the total energy equation as numerical corrections. The viscous heat production is implicitly considered thanks to the knowledge of the LBM momentum flux. Three models are subsequently derived: a first-order upwind, a Lax–Wendroff, and a third-order Godunov-type schemes. They are assessed on standard academic test cases: a Couette flow, entropy spot and vortex convections, a Sod shock tube, several two-dimensional Riemann problems, and a shock–vortex interaction. Three key features are then exhibited: (1) the models are conservative by construction, recovering correct jump relations across shock waves; (2) the stability and accuracy of entropy modes can be explicitly controlled; and (3) the low dissipation of the LBM for isentropic phenomena is preserved. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2021
Elena Alekseenko; Bernard Roux; Konstantin Kuznetsov
Wind-Induced Resuspension and Transport of Contaminated Sediment from the Rove Canal into the Etang De Berre, France Article de journal
Dans: Water, vol. 14, no. 1, 2021, ISSN: 2073-4441.
@article{Alekseenko2021,
title = {Wind-Induced Resuspension and Transport of Contaminated Sediment from the Rove Canal into the Etang De Berre, France},
author = {Elena Alekseenko and Bernard Roux and Konstantin Kuznetsov},
doi = {10.3390/w14010062},
issn = {2073-4441},
year = {2021},
date = {2021-12-29},
journal = {Water},
volume = {14},
number = {1},
publisher = {MDPI AG},
abstract = {<jats:p>The present study concerns the erosion and transport of severely contaminated sediments in a Canal. It begins in the context of an engineering project aimed to re-introduce a forced convection at the entrance of this Canal by pumping marine water. The local wind is often strong enough to overpass the resuspension threshold; thus, there is a serious risk of downstream contamination of a Mediterranean lagoon. So, the goal is to evaluate this risk as a function of the pumping rate; this contamination is transported by the fine suspended particles. Different scenarios are investigated to determine the downstream transport of suspensions in terms of runoff. These scenarios (of 24 h) contains a succession of 3 periods: constant wind speed, wind slowdown and calm, for two opposite wind directions. Special attention is devoted to the modeling of complex mechanisms of erosion and resuspension during wind periods, deposition during windless periods and sediment consolidation. The main results concern the total flux of the suspended particles through the exit of the Canal at the confluence with the lagoon. It is shown that even for moderate runoff (<6 m3/s) this total flux is large enough, not only during the wind period, but also after several hours of calm.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E.A. Hodille; R. Delaporte-Mathurin; J. Denis; M. Pecovnik; E. Bernard; Y. Ferro; R. Sakamoto; Y. Charles; J. Mougenot; A. De Backer; C.S. Becquart; S. Markelj; C. Grisolia
Modelling of hydrogen isotopes trapping, diffusion and permeation in divertor monoblocks under ITER-like conditions Article de journal
Dans: Nucl. Fusion, vol. 61, no. 12, 2021, ISSN: 1741-4326.
@article{Hodille2021,
title = {Modelling of hydrogen isotopes trapping, diffusion and permeation in divertor monoblocks under ITER-like conditions},
author = {E.A. Hodille and R. Delaporte-Mathurin and J. Denis and M. Pecovnik and E. Bernard and Y. Ferro and R. Sakamoto and Y. Charles and J. Mougenot and A. De Backer and C.S. Becquart and S. Markelj and C. Grisolia},
doi = {10.1088/1741-4326/ac2abc},
issn = {1741-4326},
year = {2021},
date = {2021-12-01},
journal = {Nucl. Fusion},
volume = {61},
number = {12},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Temitope T. Abiola; Benjamin Rioux; Josene M. Toldo; Jimmy Alarcan; Jack M. Woolley; Matthew A. P. Turner; Daniel J. L. Coxon; Mariana Telles do Casal; Cédric Peyrot; Matthieu M. Mention; Wybren J. Buma; Michael N. R. Ashfold; Albert Braeuning; Mario Barbatti; Vasilios G. Stavros; Florent Allais
Towards developing novel and sustainable molecular light-to-heat converters Article de journal
Dans: Chem. Sci., vol. 12, no. 46, p. 15239–15252, 2021, ISSN: 2041-6539.
@article{Abiola2021,
title = {Towards developing novel and sustainable molecular light-to-heat converters},
author = {Temitope T. Abiola and Benjamin Rioux and Josene M. Toldo and Jimmy Alarcan and Jack M. Woolley and Matthew A. P. Turner and Daniel J. L. Coxon and Mariana Telles do Casal and Cédric Peyrot and Matthieu M. Mention and Wybren J. Buma and Michael N. R. Ashfold and Albert Braeuning and Mario Barbatti and Vasilios G. Stavros and Florent Allais},
doi = {10.1039/d1sc05077j},
issn = {2041-6539},
year = {2021},
date = {2021-12-01},
journal = {Chem. Sci.},
volume = {12},
number = {46},
pages = {15239--15252},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {The synthesis and photophysical properties of phenolic barbiturics are reported. These molecules convert absorbed ultraviolet light to heat with high fidelity and may be suitable for inclusion in foliar sprays to boost crop protection and production. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
T. Coratger; G. Farag; S. Zhao; P. Boivin; P. Sagaut
Large-eddy lattice-Boltzmann modeling of transonic flows Article de journal
Dans: vol. 33, no. 11, 2021, ISSN: 1089-7666.
@article{Coratger2021,
title = {Large-eddy lattice-Boltzmann modeling of transonic flows},
author = {T. Coratger and G. Farag and S. Zhao and P. Boivin and P. Sagaut},
doi = {10.1063/5.0064944},
issn = {1089-7666},
year = {2021},
date = {2021-11-01},
volume = {33},
number = {11},
publisher = {AIP Publishing},
abstract = {A D3Q19 hybrid recursive regularized pressure based lattice-Boltzmann method (HRR-P LBM) is assessed for the simulation of complex transonic flows. Mass and momentum conservation equations are resolved through a classical LBM solver coupled with a finite volume resolution of entropy equation for a complete compressible solver preserving stability, accuracy, and computational costs. An efficient treatment for wall and open boundaries is coupled with a grid refinement technique and extended to the HRR-P LBM in the scope of compressible aerodynamics. A Vreman subgrid turbulence model and an improved coupling of immersed boundary method with turbulence wall model on Cartesian grid accounts for unresolved scales by large-eddy simulation. The validity of the present method for transonic applications is investigated through various test cases with increasing complexity starting from an inviscid flow over a 10% bump and ending with a turbulent flow over a ONERA M6 three-dimensional wing. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Guanxiong Wang; Lincheng Xu; Eric Serre; Pierre Sagaut
Large temperature difference heat dominated flow simulations using a pressure-based lattice Boltzmann method with mass correction Article de journal
Dans: vol. 33, no. 11, 2021, ISSN: 1089-7666.
@article{Wang2021,
title = {Large temperature difference heat dominated flow simulations using a pressure-based lattice Boltzmann method with mass correction},
author = {Guanxiong Wang and Lincheng Xu and Eric Serre and Pierre Sagaut},
doi = {10.1063/5.0073178},
issn = {1089-7666},
year = {2021},
date = {2021-11-01},
volume = {33},
number = {11},
publisher = {AIP Publishing},
abstract = {This paper addresses simulation of heat dominated compressible flows in a closed cavity using a pressure-based lattice Boltzmann (LB) method, in which thermal effects are modeled by applying a pressure-featured zero-order moment of distribution functions. A focus is made on the conservation of mass at boundary nodes, which is a challenging issue that significantly complicated by the density-decoupled zero-order moment here. The mass leakage at boundary nodes is mathematically quantified, which enables an efficient local mass correction scheme. The performance of this solver is assessed by simulating buoyancy-driven flows in a closed deferentially heated cavity with large temperature differences (non-Boussinesq) at Rayleigh numbers ranging from 103 to 107. Simulations show that mass leakage at solid walls in such configurations is a critical issue to obtain reliable solutions, and it eventually leads to simulations overflow when the cavity is inclined. The proposed mass correction scheme is, however, shown to be effective to control the mass leakage and get accurate solutions. Thus, associated with the proposed mass conservation scheme, the pressure-based LB method becomes reliable to study natural convection dominated flows at large temperature differences in closed geometries with mesh aligned boundaries or not. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hung Truong; Thomas Engels; Henja Wehmann; Dmitry Kolomenskiy; Fritz-Olaf Lehmann; Kai Schneider
An experimental data-driven mass-spring model of flexible Calliphora wings Article de journal
Dans: Bioinspir. Biomim., 2021, ISSN: 1748-3190.
@article{Truong2021b,
title = {An experimental data-driven mass-spring model of flexible \textit{Calliphora} wings},
author = {Hung Truong and Thomas Engels and Henja Wehmann and Dmitry Kolomenskiy and Fritz-Olaf Lehmann and Kai Schneider},
doi = {10.1088/1748-3190/ac2f56},
issn = {1748-3190},
year = {2021},
date = {2021-10-13},
journal = {Bioinspir. Biomim.},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hung Truong; Thomas Engels; Henja Wehmann; Dmitry Kolomenskiy; Fritz-Olaf Lehmann; Kai Schneider
An experimental data-driven mass-spring model of flexible Calliphora wings Article de journal
Dans: Bioinspir. Biomim., 2021, ISSN: 1748-3190.
@article{Truong2021,
title = {An experimental data-driven mass-spring model of flexible \textit{Calliphora} wings},
author = {Hung Truong and Thomas Engels and Henja Wehmann and Dmitry Kolomenskiy and Fritz-Olaf Lehmann and Kai Schneider},
doi = {10.1088/1748-3190/ac2f56},
issn = {1748-3190},
year = {2021},
date = {2021-10-13},
journal = {Bioinspir. Biomim.},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M Bouffard; B Favier; D Lecoanet; M Le Bars
Internal gravity waves in a stratified layer atop a convecting liquid core in a non-rotating spherical shell Article de journal
Dans: vol. 228, no. 1, p. 337–354, 2021, ISSN: 1365-246X.
@article{Bouffard2021,
title = {Internal gravity waves in a stratified layer atop a convecting liquid core in a non-rotating spherical shell},
author = {M Bouffard and B Favier and D Lecoanet and M Le Bars},
doi = {10.1093/gji/ggab343},
issn = {1365-246X},
year = {2021},
date = {2021-09-12},
volume = {228},
number = {1},
pages = {337--354},
publisher = {Oxford University Press (OUP)},
abstract = {SUMMARY
Seismic and magnetic observations have suggested the presence of a stably stratified layer atop Earth’s core. Such a layer could affect the morphology of the geomagnetic field and the evolution of the core, but the precise impact of this layer depends largely on its internal dynamics. Among other physical phenomena, stratified layers host internal gravity waves (IGW), which can be excited by adjacent convective motions. Internal waves are known to play an important role on the large-scale dynamics of the Earth’s climate and on the long-term evolution of stars. Yet, they have received relatively little attention in the Earth’s outer core so far and deserve detailed investigations in this context. Here, we make a first step in that direction by running numerical simulations of IGW in a non-rotating spherical shell in which a stratified layer lies on top of a convective region. We use a nonlinear equation of state to produce self-consistently such a two-layer system. Both propagating waves and global modes coexist in the stratified layer. We characterize the spectral properties of these waves and find that energy is distributed across a wide range of frequencies and length scales, that depends on the Prandtl number. For the control parameters considered and in the absence of rotational and magnetic effects, the mean kinetic energy in the layer is about 0.1 per cent that of the convective region. IGW produce perturbations in the gravity field that may fall within the sensitivity limit of present-day instruments and could potentially be detected in available data. We finally provide a road map for future, more geophysically realistic, studies towards a more thorough understanding of the dynamics and impact of internal waves in a stratified layer atop Earth’s core. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M Bouffard; B Favier; D Lecoanet; M Le Bars
Internal gravity waves in a stratified layer atop a convecting liquid core in a non-rotating spherical shell Article de journal
Dans: vol. 228, no. 1, p. 337–354, 2021, ISSN: 1365-246X.
@article{Bouffard2021b,
title = {Internal gravity waves in a stratified layer atop a convecting liquid core in a non-rotating spherical shell},
author = {M Bouffard and B Favier and D Lecoanet and M Le Bars},
doi = {10.1093/gji/ggab343},
issn = {1365-246X},
year = {2021},
date = {2021-09-12},
volume = {228},
number = {1},
pages = {337--354},
publisher = {Oxford University Press (OUP)},
abstract = {SUMMARY
Seismic and magnetic observations have suggested the presence of a stably stratified layer atop Earth’s core. Such a layer could affect the morphology of the geomagnetic field and the evolution of the core, but the precise impact of this layer depends largely on its internal dynamics. Among other physical phenomena, stratified layers host internal gravity waves (IGW), which can be excited by adjacent convective motions. Internal waves are known to play an important role on the large-scale dynamics of the Earth’s climate and on the long-term evolution of stars. Yet, they have received relatively little attention in the Earth’s outer core so far and deserve detailed investigations in this context. Here, we make a first step in that direction by running numerical simulations of IGW in a non-rotating spherical shell in which a stratified layer lies on top of a convective region. We use a nonlinear equation of state to produce self-consistently such a two-layer system. Both propagating waves and global modes coexist in the stratified layer. We characterize the spectral properties of these waves and find that energy is distributed across a wide range of frequencies and length scales, that depends on the Prandtl number. For the control parameters considered and in the absence of rotational and magnetic effects, the mean kinetic energy in the layer is about 0.1 per cent that of the convective region. IGW produce perturbations in the gravity field that may fall within the sensitivity limit of present-day instruments and could potentially be detected in available data. We finally provide a road map for future, more geophysically realistic, studies towards a more thorough understanding of the dynamics and impact of internal waves in a stratified layer atop Earth’s core. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
J. V. Gomes; M. C. de Sousa; R. L. Viana; I. L. Caldas; Y. Elskens
Low-dimensional chaos in the single wave model for self-consistent wave–particle Hamiltonian Article de journal
Dans: vol. 31, no. 8, 2021, ISSN: 1089-7682.
@article{Gomes2021,
title = {Low-dimensional chaos in the single wave model for self-consistent wave–particle Hamiltonian},
author = {J. V. Gomes and M. C. de Sousa and R. L. Viana and I. L. Caldas and Y. Elskens},
doi = {10.1063/5.0040939},
issn = {1089-7682},
year = {2021},
date = {2021-08-01},
volume = {31},
number = {8},
publisher = {AIP Publishing},
abstract = {We analyze nonlinear aspects of the self-consistent wave–particle interaction using Hamiltonian dynamics in the single wave model, where the wave is modified due to the particle dynamics. This interaction plays an important role in the emergence of plasma instabilities and turbulence. The simplest case, where one particle (N=1) is coupled with one wave (M=1), is completely integrable, and the nonlinear effects reduce to the wave potential pulsating while the particle either remains trapped or circulates forever. On increasing the number of particles (N=2, M=1), integrability is lost and chaos develops. Our analyses identify the two standard ways for chaos to appear and grow (the homoclinic tangle born from a separatrix, and the resonance overlap near an elliptic fixed point). Moreover, a strong form of chaos occurs when the energy is high enough for the wave amplitude to vanish occasionally. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sudip Das; Marc Jaeger; Marc Leonetti; Rochish M. Thaokar; Paul G. Chen
Effect of pulse width on the dynamics of a deflated vesicle in unipolar and bipolar pulsed electric fields Article de journal
Dans: vol. 33, no. 8, 2021, ISSN: 1089-7666.
@article{Das2021,
title = {Effect of pulse width on the dynamics of a deflated vesicle in unipolar and bipolar pulsed electric fields},
author = {Sudip Das and Marc Jaeger and Marc Leonetti and Rochish M. Thaokar and Paul G. Chen},
doi = {10.1063/5.0057168},
issn = {1089-7666},
year = {2021},
date = {2021-08-01},
volume = {33},
number = {8},
publisher = {AIP Publishing},
abstract = {Giant unilamellar vesicles subjected to pulsed direct-current (pulsed-DC) fields are promising biomimetic systems to investigate the electroporation of cells. In strong electric fields, vesicles undergo significant deformation, which strongly alters the transmembrane potential, and consequently the electroporation. Previous theoretical studies investigated the electrodeformation of vesicles in DC fields (which are not pulsed). In this work, we computationally investigate the deformation of a deflated vesicle under unipolar, bipolar, and two-step unipolar pulses and show the sensitive dependence of intermediate shapes on the type of pulse and pulse width. Starting with the stress-free initial shape of a deflated vesicle, which is similar to a prolate spheroid, the analysis is presented for the cases with higher and lower conductivities of the inner fluid medium relative to the outer fluid medium. For the ratio of inner to outer fluid conductivity, σr = 10, the shape always remains prolate, including when the field is turned off. For σr=0.1, several complex dynamics are observed, such as the prolate-to-oblate (PO), prolate-to-oblate-to-prolate (POP) shape transitions in time depending upon the strength of the field and the pulse properties. In this case, on turning off the field, a metastable oblate equilibrium shape is seen, which seems to be a characteristic of a deflated vesicle leading to POPO transitions. When a two-step unipolar pulse (a combination of a strong and a weak subpulse) is applied, a vesicle can reach an oblate or a prolate final shape depending upon the relative durations of the two subpulses. This study suggests that the transmembrane potential can be regulated using a bipolar pulsed-DC field. It also shows that the shapes admitted in the dynamics of a vesicle depend upon whether the pulse is unipolar or bipolar. Parameters are suggested wherein the simulation results can be demonstrated in experiments. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mihael Petač; Julien Lavalle; Arturo Núñez-Castiñeyra; Emmanuel Nezri
Testing the predictions of axisymmetric distribution functions of galactic dark matter with hydrodynamical simulations Article de journal
Dans: J. Cosmol. Astropart. Phys., vol. 2021, no. 08, 2021, ISSN: 1475-7516.
@article{Petač2021,
title = {Testing the predictions of axisymmetric distribution functions of galactic dark matter with hydrodynamical simulations},
author = {Mihael Petač and Julien Lavalle and Arturo Núñez-Castiñeyra and Emmanuel Nezri},
doi = {10.1088/1475-7516/2021/08/031},
issn = {1475-7516},
year = {2021},
date = {2021-08-01},
journal = {J. Cosmol. Astropart. Phys.},
volume = {2021},
number = {08},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
P. Boivin; M. Tayyab; S. Zhao
Benchmarking a lattice-Boltzmann solver for reactive flows: Is the method worth the effort for combustion? Article de journal
Dans: vol. 33, no. 7, 2021, ISSN: 1089-7666.
@article{Boivin2021,
title = {Benchmarking a lattice-Boltzmann solver for reactive flows: Is the method worth the effort for combustion?},
author = {P. Boivin and M. Tayyab and S. Zhao},
doi = {10.1063/5.0057352},
issn = {1089-7666},
year = {2021},
date = {2021-07-01},
volume = {33},
number = {7},
publisher = {AIP Publishing},
abstract = {This Letter reports a validation of a lattice-Boltzmann approach following the Taylor–Green Vortex benchmark presented at the 19th International Congress on Numerical Combustion and recently reported by Abdelsamie et al. [“The Taylor–Green vortex as a benchmark for high-fidelity combustion simulations using low-Mach solvers,” Comput. Fluids 223, 104935 (2021)]. The lattice-Boltzmann approach, despite having a time step bound by an acoustic Courant–Friedrichs–Lewy condition, provides results faster than the low-Mach solvers which performed to the benchmark. Such a feat is made possible by the fully explicit nature of the method and indicates very high potential for practical applications. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hailong Yang; Pascal Boulet; Marie-Christine Record
Thermoelectric Properties of Sb-S System Compounds from DFT Calculations Article de journal
Dans: Materials, vol. 13, no. 21, 2021, ISSN: 1996-1944.
@article{Yang2020,
title = {Thermoelectric Properties of Sb-S System Compounds from DFT Calculations},
author = {Hailong Yang and Pascal Boulet and Marie-Christine Record},
doi = {10.3390/ma13214707},
issn = {1996-1944},
year = {2021},
date = {2021-06-14},
journal = {Materials},
volume = {13},
number = {21},
publisher = {MDPI AG},
abstract = {<jats:p>By combining density functional theory, quantum theory of atoms in molecules and transport properties calculations, we evaluated the thermoelectric properties of Sb-S system compounds and shed light on their relationships with electronic structures. The results show that, for Sb2S3, the large density of states (DOS) variation induces a large Seebeck coefficient. Taking into account the long-range weak bonds distribution, Sb2S3 should exhibit low lattice thermal conductivity. Therefore, Sb2S3 is promising for thermoelectric applications. The insertion of Be atoms into the Sb2S3 interstitial sites demonstrates the electrical properties and Seebeck coefficient anisotropy and sheds light on the understanding of the role of quasi-one-dimensional structure in the electron transport. The large interstitial sites existing in SbS2 are at the origin of phonons anharmonicity which counteracts the thermal transport. The introduction of Zn and Ga atoms into these interstitial sites could result in an enhancement of all the thermoelectric properties.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shang-Gui Cai; Pierre Sagaut
Explicit wall models for large eddy simulation Article de journal
Dans: vol. 33, no. 4, 2021, ISSN: 1089-7666.
@article{Cai2021b,
title = {Explicit wall models for large eddy simulation},
author = {Shang-Gui Cai and Pierre Sagaut},
doi = {10.1063/5.0048563},
issn = {1089-7666},
year = {2021},
date = {2021-04-01},
volume = {33},
number = {4},
publisher = {AIP Publishing},
abstract = {Algebraic explicit wall models covering the entire inner region of the turbulent boundary layer are proposed to reduce the computational effort for large eddy simulation of wall-bounded turbulent flows. The proposed formulas are given in closed forms with either logarithmic- or power-function-based laws of the wall, allowing straightforward evaluation of the friction velocity on near wall grids independent of their locations in the turbulent boundary layer. The performance of the proposed models is demonstrated by the wall modeled large eddy simulation of a turbulent plane channel flow. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Tayyab; S. Zhao; P. Boivin
Lattice-Boltzmann modeling of a turbulent bluff-body stabilized flame Article de journal
Dans: vol. 33, no. 3, 2021, ISSN: 1089-7666.
@article{Tayyab2021,
title = {Lattice-Boltzmann modeling of a turbulent bluff-body stabilized flame},
author = {M. Tayyab and S. Zhao and P. Boivin},
doi = {10.1063/5.0038089},
issn = {1089-7666},
year = {2021},
date = {2021-03-01},
volume = {33},
number = {3},
publisher = {AIP Publishing},
abstract = {This Letter reports the first large eddy simulation of a turbulent flame using a lattice-Boltzmann model. To that end, simulation of a bluff-body stabilized propane–air flame is carried out, showing an agreement similar to those available in the literature. Computational costs are also reported, indicating that lattice-Boltzmann modeling of reactive flows is competitive, with around 1000cpuh required to simulate one residence time in the 1.5 m burner. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
N. Kumar; Y. Camenen; S. Benkadda; C. Bourdelle; A. Loarte; A.R. Polevoi; F. Widmer; JET contributors
Turbulent transport driven by kinetic ballooning modes in the inner core of JET hybrid H-modes Article de journal
Dans: Nucl. Fusion, vol. 61, no. 3, 2021, ISSN: 1741-4326.
@article{Kumar2021,
title = {Turbulent transport driven by kinetic ballooning modes in the inner core of JET hybrid H-modes},
author = {N. Kumar and Y. Camenen and S. Benkadda and C. Bourdelle and A. Loarte and A.R. Polevoi and F. Widmer and JET contributors},
doi = {10.1088/1741-4326/abd09c},
issn = {1741-4326},
year = {2021},
date = {2021-03-01},
journal = {Nucl. Fusion},
volume = {61},
number = {3},
publisher = {IOP Publishing},
abstract = {Abstract
Turbulent transport in the inner core of the high-β JET hybrid discharge 75225 is investigated extensively through linear and non-linear gyro-kinetic (GK) simulations using the GK code GKW in the local approximation limit. Compared to previous studies (Citrin et al 2015 Plasma Phys. Control. Fusion
57 014032; Garcia et al 2015 Nucl. Fusion
55 053007), the analysis has been extended towards the magnetic axis, ρ < 0.3, where the turbulence characteristics remain an open question. Understanding turbulent transport in this region is crucial to predict core profile peaking that in turn will impact the fusion reactions and the tungsten neoclassical transport, in present devices as well as in ITER. At ρ = 0.15, a linear stability analysis indicates that kinetic ballooning modes (KBMs) dominate, with an extended mode structure in ballooning space due to the low magnetic shear. The sensitivity of KBM stability to main plasma parameters is investigated. In the non-linear regime, the turbulence induced by these KBMs drives a significant ion and electron heat flux. Standard quasi-linear (QL) models are compared to the non-linear results. The standard reduced QL models work well for the E × B fluxes, but fail to capture magnetic flutter contribution to the electron heat flux induced by the non-linear excitation of low k
θ
ρ
i micro-tearing modes that are linearly stable. An extension of the QL models is proposed allowing better capturing the magnetic flutter flux. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Katherine M. Xiang; David M. Nataf; E. Athanassoula; Nadia L. Zakamska; Kate Rowlands; Karen Masters; Amelia Fraser-McKelvie; Niv Drory; Katarina Kraljic
Buckling Bars in Nearly Face-on Galaxies Observed with MaNGA Article de journal
Dans: ApJ, vol. 909, no. 2, 2021, ISSN: 1538-4357.
@article{Xiang2021,
title = {Buckling Bars in Nearly Face-on Galaxies Observed with MaNGA},
author = {Katherine M. Xiang and David M. Nataf and E. Athanassoula and Nadia L. Zakamska and Kate Rowlands and Karen Masters and Amelia Fraser-McKelvie and Niv Drory and Katarina Kraljic},
doi = {10.3847/1538-4357/abdab5},
issn = {1538-4357},
year = {2021},
date = {2021-03-01},
journal = {ApJ},
volume = {909},
number = {2},
publisher = {American Astronomical Society},
abstract = {Abstract
Over half of disk galaxies are barred, yet the mechanisms for bar formation and the lifetime of bar buckling remain poorly understood. In simulations, a thin bar undergoes a rapid (<1 Gyr) event called “buckling,” during which the inner part of the bar is asymmetrically bent out of the galaxy plane and eventually thickens, developing a peanut/X-shaped profile when viewed side-on. Through analyzing stellar kinematics of N -body model snapshots of a galaxy before, during, and after the buckling phase, we confirm a distinct quadrupolar pattern of out-of-plane stellar velocities in nearly face-on galaxies. This kinematic signature of buckling allows us to identify five candidates of currently buckling bars among 434 barred galaxies in the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Survey, an integral field unit spectroscopic survey that measures the composition and kinematic structure of nearby galaxies. The frequency of buckling events detected is consistent with the 0.5–1 Gyr timescale predicted by simulations. The five candidates we present more than double the total number of candidate buckling bars and are the only ones found using the kinematic signature. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jeroen P. J. Bruekers; Matthijs A. Hellinghuizen; Nicolas Vanthuyne; Paul Tinnemans; Pieter J. Gilissen; Wybren Jan Buma; Jean‐Valère Naubron; Jeanne Crassous; Johannes A. A. W. Elemans; Roeland J. M. Nolte
Front Cover: Allosteric Guest Binding in Chiral Zirconium(IV) Double Decker Porphyrin Cages (Eur. J. Org. Chem. 4/2021) Article de journal
Dans: Eur J Org Chem, vol. 2021, no. 4, p. 512–512, 2021, ISSN: 1099-0690.
@article{Bruekers2021,
title = {Front Cover: Allosteric Guest Binding in Chiral Zirconium(IV) Double Decker Porphyrin Cages (Eur. J. Org. Chem. 4/2021)},
author = {Jeroen P. J. Bruekers and Matthijs A. Hellinghuizen and Nicolas Vanthuyne and Paul Tinnemans and Pieter J. Gilissen and Wybren Jan Buma and Jean‐Valère Naubron and Jeanne Crassous and Johannes A. A. W. Elemans and Roeland J. M. Nolte},
doi = {10.1002/ejoc.202001599},
issn = {1099-0690},
year = {2021},
date = {2021-01-26},
journal = {Eur J Org Chem},
volume = {2021},
number = {4},
pages = {512--512},
publisher = {Wiley},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miquel Huix-Rotllant; Karno Schwinn; Nicolas Ferré
Infrared spectroscopy from electrostatic embedding QM/MM: local normal mode analysis of infrared spectra of arabidopsis thaliana plant cryptochrome Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 23, no. 2, p. 1666–1674, 2021, ISSN: 1463-9084.
@article{Huix-Rotllant2021,
title = {Infrared spectroscopy from electrostatic embedding QM/MM: local normal mode analysis of infrared spectra of arabidopsis thaliana plant cryptochrome},
author = {Miquel Huix-Rotllant and Karno Schwinn and Nicolas Ferré},
doi = {10.1039/d0cp06070d},
issn = {1463-9084},
year = {2021},
date = {2021-01-21},
journal = {Phys. Chem. Chem. Phys.},
volume = {23},
number = {2},
pages = {1666--1674},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Combined QM/MM Hessians and local normal mode analysis are powerful tools to simulate and interpret complex IR spectra of biological macromolecules.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Combined QM/MM Hessians and local normal mode analysis are powerful tools to simulate and interpret complex IR spectra of biological macromolecules.
Miquel Huix-Rotllant; Nicolas Ferré
Analytic Energy, Gradient, and Hessian of Electrostatic Embedding QM/MM Based on Electrostatic Potential-Fitted Atomic Charges Scaling Linearly with the MM Subsystem Size Article de journal
Dans: J. Chem. Theory Comput., vol. 17, no. 1, p. 538–548, 2021, ISSN: 1549-9626.
@article{Huix-Rotllant2020,
title = {Analytic Energy, Gradient, and Hessian of Electrostatic Embedding QM/MM Based on Electrostatic Potential-Fitted Atomic Charges Scaling Linearly with the MM Subsystem Size},
author = {Miquel Huix-Rotllant and Nicolas Ferré},
doi = {10.1021/acs.jctc.0c01075},
issn = {1549-9626},
year = {2021},
date = {2021-01-12},
journal = {J. Chem. Theory Comput.},
volume = {17},
number = {1},
pages = {538--548},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2020
A. Gallo; A. Sepetys; Y. Marandet; H. Bufferand; G. Ciraolo; N. Fedorczak; S. Brezinsek; J. Bucalossi; J. Coenen; F. Clairet; Y. Corre; C. Desgranges; P. Devynck; J. Gaspar; R. Guirlet; J. Gunn; C.C. Klepper; J.-Y. Pascal; P. Tamain; E. Tsitrone; E.A. Unterberg; the WEST team
Interpretative transport modeling of the WEST boundary plasma: main plasma and light impurities Article de journal
Dans: Nucl. Fusion, vol. 60, no. 12, 2020, ISSN: 1741-4326.
@article{Gallo2020,
title = {Interpretative transport modeling of the WEST boundary plasma: main plasma and light impurities},
author = {A. Gallo and A. Sepetys and Y. Marandet and H. Bufferand and G. Ciraolo and N. Fedorczak and S. Brezinsek and J. Bucalossi and J. Coenen and F. Clairet and Y. Corre and C. Desgranges and P. Devynck and J. Gaspar and R. Guirlet and J. Gunn and C.C. Klepper and J.-Y. Pascal and P. Tamain and E. Tsitrone and E.A. Unterberg and the WEST team},
doi = {10.1088/1741-4326/abb95b},
issn = {1741-4326},
year = {2020},
date = {2020-12-01},
journal = {Nucl. Fusion},
volume = {60},
number = {12},
publisher = {IOP Publishing},
abstract = {Abstract
Understanding impurity transport in tokamak plasmas is crucial to control radiative losses and material migration in future magnetic fusion reactors. In this work we deploy the SolEdge2D-EIRENE code to model the boundary plasma in a WEST discharge, satisfactorily reproducing measurements of both upstream and divertor plasma conditions. The spatial distribution of oxygen, studied here as a representative light impurity, is compared to vacuum ultraviolet spectroscopy measurements acquired with an oscillating line of sight. The simulation captures a key feature of the experiment, namely a factor of ≃2 higher oxygen brightness in the inner divertor region compared to the outer one. This spatial asymmetry in oxygen concentration is interpreted by analyzing the balance of friction forces and thermal gradient forces that the light impurity exchanges with the main plasma. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
S. Guo; Y. Feng; P. Sagaut
Improved standard thermal lattice Boltzmann model with hybrid recursive regularization for compressible laminar and turbulent flows Article de journal
Dans: vol. 32, no. 12, 2020, ISSN: 1089-7666.
@article{Guo2020,
title = {Improved standard thermal lattice Boltzmann model with hybrid recursive regularization for compressible laminar and turbulent flows},
author = {S. Guo and Y. Feng and P. Sagaut},
doi = {10.1063/5.0033364},
issn = {1089-7666},
year = {2020},
date = {2020-12-01},
volume = {32},
number = {12},
publisher = {AIP Publishing},
abstract = {Based on recent work by Guo et al. [“An efficient lattice Boltzmann method for compressible aerodynamics on D3Q19 lattice,” J. Comput. Phys. 418, 109570 (2020)], an improved thermal hybrid recursive regularized lattice Boltzmann model (iHRR-ρ) on a regular lattice is developed for two- and three-dimensional compressible laminar and turbulent flows. To enhance the numerical stability in a broad range of Courant–Friedrichs–Lewy numbers and in under-resolved simulations, a new equilibrium density distribution function is proposed to enlarge its positivity region in the Mach–temperature plane. An embedded hybridizing procedure is introduced in the quasi-symmetry correction terms, which allow for a decoupled treatment of unphysical modes and physical under-resolved turbulent scales on coarse grids. To handle compressible turbulent flows, the under-resolved scales are modeled using the original hybrid recursive regularized collision model given by Jacob et al. [“A new hybrid recursive regularised Bhatnagar–Gross–Krook collision model for Lattice Boltzmann method-based large eddy simulation,” J. Turbul. 19, 1051–1076 (2018)] equipped with Vreman’s subgrid model for the large-eddy simulation. The validity and accuracy of the present method for laminar and turbulent compressible flows are assessed by considering six test cases: (I) viscous shock wave internal structure, (II) isentropic vortex convection in a supersonic regime, (III) non-isothermal acoustic pulse, (IV) vortex–shock wave interaction, (V) supersonic flow over NACA airfoil at Re = 10 000 and Ma = 1.5, and (VI) compressible Taylor–Green vortex at Ma = 0.29. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bjørn Ursin; Nathalie Favretto-Cristini; Paul Cristini
Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media Article de journal
Dans: vol. 224, no. 1, p. 719–737, 2020, ISSN: 1365-246X.
@article{Ursin2020,
title = {Amplitude and phase changes for reflected and transmitted waves from a curved interface in anisotropic media},
author = {Bjørn Ursin and Nathalie Favretto-Cristini and Paul Cristini},
doi = {10.1093/gji/ggaa456},
issn = {1365-246X},
year = {2020},
date = {2020-11-18},
volume = {224},
number = {1},
pages = {719--737},
publisher = {Oxford University Press (OUP)},
abstract = {SUMMARY It is well known that seismic data that have been recorded in complex geological environments must be compensated for geometrical spreading before AVO/AVA (amplitude-versus-offset/amplitude-versus-angle) analysis, in order to avoid erroneous imaging interpretation. By investigating analytically both the effect of the geometrical spreading and the effect of the reflector curvature on amplitude and phase changes for reflected and transmitted waves between anisotropic media, using ray theory, we show that these data should be compensated for interface effects as well. In order to gain insight more specifically in the focusing effect of the interface, the special case of homogeneous isotropic media separated by a curved interface of syncline type is discussed and compared to the case of a plane interface. 3-D numerical simulations of wave reflection from curved interfaces using a spectral element method validate our analytical derivations. In particular, numerical seismograms obtained at a vertical receiver array highlight that the effect of interface curvature on the reflected events is much more pronounced in a restricted area associated with the existence of caustics, which is consistent with our analytical predictions. Moreover, comparisons between the numerical and the analytical results confirm the fact that using plane-wave reflection coefficients without correction for the interface effect may lead to wrong interpretation of AVA/AVO analysis. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Thibault Oujia; Keigo Matsuda; Kai Schneider
Divergence and convergence of inertial particles in high-Reynolds-number turbulence Article de journal
Dans: J. Fluid Mech., vol. 905, 2020, ISSN: 1469-7645.
@article{Oujia2020,
title = {Divergence and convergence of inertial particles in high-Reynolds-number turbulence},
author = {Thibault Oujia and Keigo Matsuda and Kai Schneider},
doi = {10.1017/jfm.2020.672},
issn = {1469-7645},
year = {2020},
date = {2020-10-26},
journal = {J. Fluid Mech.},
volume = {905},
publisher = {Cambridge University Press (CUP)},
abstract = {Abstract
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Thomas Lacroix; Arturo Núñez-Castiñeyra; Martin Stref; Julien Lavalle; Emmanuel Nezri
Predicting the dark matter velocity distribution in galactic structures: tests against hydrodynamic cosmological simulations Article de journal
Dans: J. Cosmol. Astropart. Phys., vol. 2020, no. 10, p. 031–031, 2020, ISSN: 1475-7516.
@article{Lacroix2020,
title = {Predicting the dark matter velocity distribution in galactic structures: tests against hydrodynamic cosmological simulations},
author = {Thomas Lacroix and Arturo Núñez-Castiñeyra and Martin Stref and Julien Lavalle and Emmanuel Nezri},
doi = {10.1088/1475-7516/2020/10/031},
issn = {1475-7516},
year = {2020},
date = {2020-10-01},
journal = {J. Cosmol. Astropart. Phys.},
volume = {2020},
number = {10},
pages = {031--031},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fábris Kossoski; Mario Barbatti
Nonadiabatic dynamics in multidimensional complex potential energy surfaces Article de journal
Dans: Chem. Sci., vol. 11, no. 36, p. 9827–9835, 2020, ISSN: 2041-6539.
@article{Kossoski2020,
title = {Nonadiabatic dynamics in multidimensional complex potential energy surfaces},
author = {Fábris Kossoski and Mario Barbatti},
doi = {10.1039/d0sc04197a},
issn = {2041-6539},
year = {2020},
date = {2020-09-23},
journal = {Chem. Sci.},
volume = {11},
number = {36},
pages = {9827--9835},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Despite the continuous development of methods for describing nonadiabatic dynamics, there is a lack of multidimensional approaches for processes where the wave function norm is not conserved. A new surface hopping variant closes this knowledge gap.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Despite the continuous development of methods for describing nonadiabatic dynamics, there is a lack of multidimensional approaches for processes where the wave function norm is not conserved. A new surface hopping variant closes this knowledge gap.
Marcel Krug; Maximilian Wagner; Tobias A. Schaub; Wen‐Shan Zhang; Christoph M. Schüßlbauer; Johannes D. R. Ascherl; Peter W. Münich; Rasmus R. Schröder; Franziska Gröhn; Pavlo O. Dral; Mario Barbatti; Dirk M. Guldi; Milan Kivala
The Impact of Aggregation on the Photophysics of Spiro‐Bridged Heterotriangulenes Article de journal
Dans: Angew Chem Int Ed, vol. 59, no. 37, p. 16233–16240, 2020, ISSN: 1521-3773.
@article{Krug2020,
title = {The Impact of Aggregation on the Photophysics of Spiro‐Bridged Heterotriangulenes},
author = {Marcel Krug and Maximilian Wagner and Tobias A. Schaub and Wen‐Shan Zhang and Christoph M. Schüßlbauer and Johannes D. R. Ascherl and Peter W. Münich and Rasmus R. Schröder and Franziska Gröhn and Pavlo O. Dral and Mario Barbatti and Dirk M. Guldi and Milan Kivala},
doi = {10.1002/anie.202003504},
issn = {1521-3773},
year = {2020},
date = {2020-09-07},
journal = {Angew Chem Int Ed},
volume = {59},
number = {37},
pages = {16233--16240},
publisher = {Wiley},
abstract = {Abstract We report on the impact of the central heteroatom on structural, electronic, and spectroscopic properties of a series of spirofluorene‐bridged heterotriangulenes and provide a detailed study on their aggregates. The in‐depth analysis of their molecular structure by NMR spectroscopy and X‐ray crystallography was further complemented by density functional theory calculations. With the aid of extensive photophysical analysis the complex fluorescence spectra were deconvoluted showing contributions from the peripheral fluorenes and the heteroaromatic cores. Beyond the molecular scale, we examined the aggregation behavior of these heterotriangulenes in THF/H2 O mixtures and analyzed the aggregates by static and dynamic light scattering. The excited‐state interactions within the aggregates were found to be similar to those found in the solid state. A plethora of morphologies and superstructures were observed by scanning electron microscopy of drop‐casted dispersions. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Noudjoud Attaf; Iñaki Cervera-Marzal; Chuang Dong; Laurine Gil; Amédée Renand; Lionel Spinelli; Pierre Milpied
Corrigendum: FB5P-seq: FACS-Based 5-Prime End Single-Cell RNA-seq for Integrative Analysis of Transcriptome and Antigen Receptor Repertoire in B and T Cells Article de journal
Dans: Front. Immunol., vol. 11, 2020, ISSN: 1664-3224.
@article{Attaf2020,
title = {Corrigendum: FB5P-seq: FACS-Based 5-Prime End Single-Cell RNA-seq for Integrative Analysis of Transcriptome and Antigen Receptor Repertoire in B and T Cells},
author = {Noudjoud Attaf and Iñaki Cervera-Marzal and Chuang Dong and Laurine Gil and Amédée Renand and Lionel Spinelli and Pierre Milpied},
doi = {10.3389/fimmu.2020.02047},
issn = {1664-3224},
year = {2020},
date = {2020-09-03},
journal = {Front. Immunol.},
volume = {11},
publisher = {Frontiers Media SA},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Karno Schwinn; Nicolas Ferré; Miquel Huix-Rotllant
UV-visible absorption spectrum of FAD and its reduced forms embedded in a cryptochrome protein Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 22, no. 22, p. 12447–12455, 2020, ISSN: 1463-9084.
@article{Schwinn2020,
title = {UV-visible absorption spectrum of FAD and its reduced forms embedded in a cryptochrome protein},
author = {Karno Schwinn and Nicolas Ferré and Miquel Huix-Rotllant},
doi = {10.1039/d0cp01714k},
issn = {1463-9084},
year = {2020},
date = {2020-06-10},
journal = {Phys. Chem. Chem. Phys.},
volume = {22},
number = {22},
pages = {12447--12455},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Simulation of UV-vis absorption spectra of cryptochromes and flavoproteins requires an explicit account of vibrations of the flavin chromophore embedded in protein.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Simulation of UV-vis absorption spectra of cryptochromes and flavoproteins requires an explicit account of vibrations of the flavin chromophore embedded in protein.
Karno Schwinn; Nicolas Ferré; Miquel Huix-Rotllant
Efficient Analytic Second Derivative of Electrostatic Embedding QM/MM Energy: Normal Mode Analysis of Plant Cryptochrome Article de journal
Dans: J. Chem. Theory Comput., vol. 16, no. 6, p. 3816–3824, 2020, ISSN: 1549-9626.
@article{Schwinn2020b,
title = {Efficient Analytic Second Derivative of Electrostatic Embedding QM/MM Energy: Normal Mode Analysis of Plant Cryptochrome},
author = {Karno Schwinn and Nicolas Ferré and Miquel Huix-Rotllant},
doi = {10.1021/acs.jctc.9b01145},
issn = {1549-9626},
year = {2020},
date = {2020-06-09},
journal = {J. Chem. Theory Comput.},
volume = {16},
number = {6},
pages = {3816--3824},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Benjamin Favier; Edgar Knobloch
Robust wall states in rapidly rotating Rayleigh–Bénard convection Article de journal
Dans: J. Fluid Mech., vol. 895, 2020, ISSN: 1469-7645.
@article{Favier2020,
title = {Robust wall states in rapidly rotating Rayleigh–Bénard convection},
author = {Benjamin Favier and Edgar Knobloch},
doi = {10.1017/jfm.2020.310},
issn = {1469-7645},
year = {2020},
date = {2020-05-11},
journal = {J. Fluid Mech.},
volume = {895},
publisher = {Cambridge University Press (CUP)},
abstract = {
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Farhan Siddique; Mario Barbatti; Zhonghua Cui; Hans Lischka; Adelia J. A. Aquino
Nonadiabatic Dynamics of Charge-Transfer States Using the Anthracene–Tetracyanoethylene Complex as a Prototype Article de journal
Dans: J. Phys. Chem. A, vol. 124, no. 17, p. 3347–3357, 2020, ISSN: 1520-5215.
@article{Siddique2020,
title = {Nonadiabatic Dynamics of Charge-Transfer States Using the Anthracene–Tetracyanoethylene Complex as a Prototype},
author = {Farhan Siddique and Mario Barbatti and Zhonghua Cui and Hans Lischka and Adelia J. A. Aquino},
doi = {10.1021/acs.jpca.0c01900},
issn = {1520-5215},
year = {2020},
date = {2020-04-30},
journal = {J. Phys. Chem. A},
volume = {124},
number = {17},
pages = {3347--3357},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jing Wang; E. Athanassoula; Si-Yue Yu; Christian Wolf; Li Shao; Hua Gao; T. H. Randriamampandry
Suppressed or Enhanced Central Star Formation Rates in Late-type Barred Galaxies Article de journal
Dans: ApJ, vol. 893, no. 1, 2020, ISSN: 1538-4357.
@article{Wang2020,
title = {Suppressed or Enhanced Central Star Formation Rates in Late-type Barred Galaxies},
author = {Jing Wang and E. Athanassoula and Si-Yue Yu and Christian Wolf and Li Shao and Hua Gao and T. H. Randriamampandry},
doi = {10.3847/1538-4357/ab7fad},
issn = {1538-4357},
year = {2020},
date = {2020-04-10},
journal = {ApJ},
volume = {893},
number = {1},
publisher = {American Astronomical Society},
abstract = {Abstract
Bars in disk-dominated galaxies are able to drive gas inflow inside the corotation radius, thus enhancing the central star formation rate (SFR). Previous work, however, has found that disk-dominated galaxies with centrally suppressed SFRs frequently host a bar. Here we investigate possible causes for the suppression of central SFRs in such cases. We compare the physical properties of a sample of disk-dominated barred galaxies with high central SFRs (HC galaxies) with those of a sample of disk-dominated barred galaxies with low central SFRs (LC galaxies). We find that the two samples have, on average, similar H i content and bars of similar strength. But we also find that the HCs have bluer colors than the LCs, and that outside the bar region, they host stronger spiral arms than the LCs, where closed rings are more often seen. We discuss and evaluate the possible causes for the suppression of the central SFR in the LC galaxies as opposed to its enhancement in the HC galaxies. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pingping Jiang; Marie-Christine Record; Pascal Boulet
First-principles calculations on CuInSe2/AlP heterostructures Article de journal
Dans: J. Mater. Chem. C, vol. 8, no. 14, p. 4732–4742, 2020, ISSN: 2050-7534.
@article{Jiang2020,
title = {First-principles calculations on CuInSe_{2}/AlP heterostructures},
author = {Pingping Jiang and Marie-Christine Record and Pascal Boulet},
doi = {10.1039/d0tc00131g},
issn = {2050-7534},
year = {2020},
date = {2020-04-09},
journal = {J. Mater. Chem. C},
volume = {8},
number = {14},
pages = {4732--4742},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Heterostructures based on a CuInSe_{2}absorber with an AlP buffer have a 12 meV conduction band offset and achieved 27.39% of conversion efficiency.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Heterostructures based on a CuInSe2absorber with an AlP buffer have a 12 meV conduction band offset and achieved 27.39% of conversion efficiency.
Hans Lischka; Ron Shepard; Thomas Müller; Péter G. Szalay; Russell M. Pitzer; Adelia J. A. Aquino; Mayzza M. Araújo do Nascimento; Mario Barbatti; Lachlan T. Belcher; Jean-Philippe Blaudeau; Itamar Borges; Scott R. Brozell; Emily A. Carter; Anita Das; Gergely Gidofalvi; Leticia González; William L. Hase; Gary Kedziora; Miklos Kertesz; Fábris Kossoski; Francisco B. C. Machado; Spiridoula Matsika; Silmar A. do Monte; Dana Nachtigallová; Reed Nieman; Markus Oppel; Carol A. Parish; Felix Plasser; Rene F. K. Spada; Eric A. Stahlberg; Elizete Ventura; David R. Yarkony; Zhiyong Zhang
The generality of the GUGA MRCI approach in COLUMBUS for treating complex quantum chemistry Article de journal
Dans: vol. 152, no. 13, 2020, ISSN: 1089-7690.
@article{Lischka2020,
title = {The generality of the GUGA MRCI approach in COLUMBUS for treating complex quantum chemistry},
author = {Hans Lischka and Ron Shepard and Thomas Müller and Péter G. Szalay and Russell M. Pitzer and Adelia J. A. Aquino and Mayzza M. Araújo do Nascimento and Mario Barbatti and Lachlan T. Belcher and Jean-Philippe Blaudeau and Itamar Borges and Scott R. Brozell and Emily A. Carter and Anita Das and Gergely Gidofalvi and Leticia González and William L. Hase and Gary Kedziora and Miklos Kertesz and Fábris Kossoski and Francisco B. C. Machado and Spiridoula Matsika and Silmar A. do Monte and Dana Nachtigallová and Reed Nieman and Markus Oppel and Carol A. Parish and Felix Plasser and Rene F. K. Spada and Eric A. Stahlberg and Elizete Ventura and David R. Yarkony and Zhiyong Zhang},
doi = {10.1063/1.5144267},
issn = {1089-7690},
year = {2020},
date = {2020-04-07},
volume = {152},
number = {13},
publisher = {AIP Publishing},
abstract = {The core part of the program system COLUMBUS allows highly efficient calculations using variational multireference (MR) methods in the framework of configuration interaction with single and double excitations (MR-CISD) and averaged quadratic coupled-cluster calculations (MR-AQCC), based on uncontracted sets of configurations and the graphical unitary group approach (GUGA). The availability of analytic MR-CISD and MR-AQCC energy gradients and analytic nonadiabatic couplings for MR-CISD enables exciting applications including, e.g., investigations of π-conjugated biradicaloid compounds, calculations of multitudes of excited states, development of diabatization procedures, and furnishing the electronic structure information for on-the-fly surface nonadiabatic dynamics. With fully variational uncontracted spin-orbit MRCI, COLUMBUS provides a unique possibility of performing high-level calculations on compounds containing heavy atoms up to lanthanides and actinides. Crucial for carrying out all of these calculations effectively is the availability of an efficient parallel code for the CI step. Configuration spaces of several billion in size now can be treated quite routinely on standard parallel computer clusters. Emerging developments in COLUMBUS, including the all configuration mean energy multiconfiguration self-consistent field method and the graphically contracted function method, promise to allow practically unlimited configuration space dimensions. Spin density based on the GUGA approach, analytic spin-orbit energy gradients, possibilities for local electron correlation MR calculations, development of general interfaces for nonadiabatic dynamics, and MRCI linear vibronic coupling models conclude this overview. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
F. Nespoli; P. Tamain; N. Fedorczak; D. Galassi; Y. Marandet
A new mechanism for filament disconnection at the X-point: poloidal shear in radial E × B velocity Article de journal
Dans: Nucl. Fusion, vol. 60, no. 4, 2020, ISSN: 1741-4326.
@article{Nespoli2020,
title = {A new mechanism for filament disconnection at the X-point: poloidal shear in radial E × B velocity},
author = {F. Nespoli and P. Tamain and N. Fedorczak and D. Galassi and Y. Marandet},
doi = {10.1088/1741-4326/ab6f1e},
issn = {1741-4326},
year = {2020},
date = {2020-04-01},
journal = {Nucl. Fusion},
volume = {60},
number = {4},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Thomas Engels; Henja-Niniane Wehmann; Fritz-Olaf Lehmann
Three-dimensional wing structure attenuates aerodynamic efficiency in flapping fly wings Article de journal
Dans: J. R. Soc. Interface., vol. 17, no. 164, 2020, ISSN: 1742-5662.
@article{Engels2020,
title = {Three-dimensional wing structure attenuates aerodynamic efficiency in flapping fly wings},
author = {Thomas Engels and Henja-Niniane Wehmann and Fritz-Olaf Lehmann},
doi = {10.1098/rsif.2019.0804},
issn = {1742-5662},
year = {2020},
date = {2020-03-11},
journal = {J. R. Soc. Interface.},
volume = {17},
number = {164},
publisher = {The Royal Society},
abstract = {<jats:p>The aerial performance of flying insects ultimately depends on how flapping wings interact with the surrounding air. It has previously been suggested that the wing's three-dimensional camber and corrugation help to stiffen the wing against aerodynamic and inertial loading during flapping motion. Their contribution to aerodynamic force production, however, is under debate. Here, we investigated the potential benefit of three-dimensional wing shape in three different-sized species of flies using models of micro-computed tomography-scanned natural wings and models in which we removed either the wing's camber, corrugation, or both properties. Forces and aerodynamic power requirements during root flapping were derived from three-dimensional computational fluid dynamics modelling. Our data show that three-dimensional camber has no benefit for lift production and attenuates Rankine–Froude flight efficiency by up to approximately 12% compared to a flat wing. Moreover, we did not find evidence for lift-enhancing trapped vortices in corrugation valleys at Reynolds numbers between 137 and 1623. We found, however, that in all tested insect species, aerodynamic pressure distribution during flapping is closely aligned to the wing's venation pattern. Altogether, our study strongly supports the assumption that the wing's three-dimensional structure provides mechanical support against external forces rather than improving lift or saving energetic costs associated with active wing flapping.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Patrick Maget; Judith Frank; Timothée Nicolas; Olivier Agullo; Xavier Garbet; Hinrich Lütjens
Natural poloidal asymmetry and neoclassical transport of impurities in tokamak plasmas Article de journal
Dans: Plasma Phys. Control. Fusion, vol. 62, no. 2, 2020, ISSN: 1361-6587.
@article{Maget2019,
title = {Natural poloidal asymmetry and neoclassical transport of impurities in tokamak plasmas},
author = {Patrick Maget and Judith Frank and Timothée Nicolas and Olivier Agullo and Xavier Garbet and Hinrich Lütjens},
doi = {10.1088/1361-6587/ab53ab},
issn = {1361-6587},
year = {2020},
date = {2020-02-01},
journal = {Plasma Phys. Control. Fusion},
volume = {62},
number = {2},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2019
Marianthi Karageorgi; Simon C. Groen; Fidan Sumbul; Julianne N. Pelaez; Kirsten I. Verster; Jessica M. Aguilar; Amy P. Hastings; Susan L. Bernstein; Teruyuki Matsunaga; Michael Astourian; Geno Guerra; Felix Rico; Susanne Dobler; Anurag A. Agrawal; Noah K. Whiteman
Genome editing retraces the evolution of toxin resistance in the monarch butterfly Article de journal
Dans: Nature, vol. 574, no. 7778, p. 409–412, 2019, ISSN: 1476-4687.
@article{Karageorgi2019,
title = {Genome editing retraces the evolution of toxin resistance in the monarch butterfly},
author = {Marianthi Karageorgi and Simon C. Groen and Fidan Sumbul and Julianne N. Pelaez and Kirsten I. Verster and Jessica M. Aguilar and Amy P. Hastings and Susan L. Bernstein and Teruyuki Matsunaga and Michael Astourian and Geno Guerra and Felix Rico and Susanne Dobler and Anurag A. Agrawal and Noah K. Whiteman},
doi = {10.1038/s41586-019-1610-8},
issn = {1476-4687},
year = {2019},
date = {2019-10-17},
journal = {Nature},
volume = {574},
number = {7778},
pages = {409--412},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pingping Jiang; Pascal Boulet; Marie-Christine Record
A DFT study of the electronic, optical and topological properties of free and biaxially strained CuIn1−xAlxSe2 Article de journal
Dans: J. Mater. Chem. C, vol. 7, no. 19, p. 5803–5815, 2019, ISSN: 2050-7534.
@article{Jiang2019,
title = {A DFT study of the electronic, optical and topological properties of free and biaxially strained CuIn_{1−x}Al_{x}Se_{2}},
author = {Pingping Jiang and Pascal Boulet and Marie-Christine Record},
doi = {10.1039/c9tc00277d},
issn = {2050-7534},
year = {2019},
date = {2019-05-16},
journal = {J. Mater. Chem. C},
volume = {7},
number = {19},
pages = {5803--5815},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {Among the CuIn_{1−x}Al_{x}Se_{2}alloys, that withx = 0.25 is the optimal one in terms of band gap and conversion efficiency. Its absorption coefficient is highly modified under biaxial strains that occur in thin films.
},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Among the CuIn1−xAlxSe2alloys, that with
Ryan Chown; Cheng Li; E Athanassoula; Niu Li; Christine D Wilson; Lin Lin; Houjun Mo; Laura C Parker; Ting Xiao
Linking bar- and interaction-driven molecular gas concentration with centrally enhanced star formation in EDGE–CALIFA galaxies Article de journal
Dans: vol. 484, no. 4, p. 5192–5211, 2019, ISSN: 1365-2966.
@article{Chown2019,
title = {Linking bar- and interaction-driven molecular gas concentration with centrally enhanced star formation in EDGE–CALIFA galaxies},
author = {Ryan Chown and Cheng Li and E Athanassoula and Niu Li and Christine D Wilson and Lin Lin and Houjun Mo and Laura C Parker and Ting Xiao},
doi = {10.1093/mnras/stz349},
issn = {1365-2966},
year = {2019},
date = {2019-04-21},
volume = {484},
number = {4},
pages = {5192--5211},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Konstantin Falahati; Carsten Hamerla; Miquel Huix-Rotllant; Irene Burghardt
Ultrafast photochemistry of free-base porphyrin: a theoretical investigation of B → Q internal conversion mediated by dark states Article de journal
Dans: Phys. Chem. Chem. Phys., vol. 20, no. 18, p. 12483–12492, 2019, ISSN: 1463-9084.
@article{Falahati2018b,
title = {Ultrafast photochemistry of free-base porphyrin: a theoretical investigation of B → Q internal conversion mediated by dark states},
author = {Konstantin Falahati and Carsten Hamerla and Miquel Huix-Rotllant and Irene Burghardt},
doi = {10.1039/c8cp00657a},
issn = {1463-9084},
year = {2019},
date = {2019-03-26},
journal = {Phys. Chem. Chem. Phys.},
volume = {20},
number = {18},
pages = {12483--12492},
publisher = {Royal Society of Chemistry (RSC)},
abstract = {<p>Ultrafast B → Q internal conversion in free-base porphyrin is mediated by dark states, necessitating a description beyond Gouterman's four-orbital model.</p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ran Liu; Xing Gao; Mario Barbatti; Jun Jiang; Guozhen Zhang
Promoting Intersystem Crossing of a Fluorescent Molecule via Single Functional Group Modification Article de journal
Dans: J. Phys. Chem. Lett., vol. 10, no. 6, p. 1388–1393, 2019, ISSN: 1948-7185.
@article{Liu2019,
title = {Promoting Intersystem Crossing of a Fluorescent Molecule via Single Functional Group Modification},
author = {Ran Liu and Xing Gao and Mario Barbatti and Jun Jiang and Guozhen Zhang},
doi = {10.1021/acs.jpclett.9b00286},
issn = {1948-7185},
year = {2019},
date = {2019-03-21},
journal = {J. Phys. Chem. Lett.},
volume = {10},
number = {6},
pages = {1388--1393},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gessenildo Pereira Rodrigues; Thayana Maria Lopes de Lima; Railton Barbosa de Andrade; Elizete Ventura; Silmar Andrade do Monte; Mario Barbatti
Photoinduced Formation of H-Bonded Ion Pair in HCFC-133a Article de journal
Dans: J. Phys. Chem. A, vol. 123, no. 10, p. 1953–1961, 2019, ISSN: 1520-5215.
@article{PereiraRodrigues2019,
title = {Photoinduced Formation of H-Bonded Ion Pair in HCFC-133a},
author = {Gessenildo Pereira Rodrigues and Thayana Maria Lopes de Lima and Railton Barbosa de Andrade and Elizete Ventura and Silmar Andrade do Monte and Mario Barbatti},
doi = {10.1021/acs.jpca.8b12482},
issn = {1520-5215},
year = {2019},
date = {2019-03-14},
journal = {J. Phys. Chem. A},
volume = {123},
number = {10},
pages = {1953--1961},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shuming Bai; Mario Barbatti
Mechanism of Spin-Exchange Internal Conversion: Practical Proxies for Diabatic and Nonadiabatic Couplings Article de journal
Dans: J. Chem. Theory Comput., vol. 15, no. 3, p. 1503–1513, 2019, ISSN: 1549-9626.
@article{Bai2019,
title = {Mechanism of Spin-Exchange Internal Conversion: Practical Proxies for Diabatic and Nonadiabatic Couplings},
author = {Shuming Bai and Mario Barbatti},
doi = {10.1021/acs.jctc.8b00923},
issn = {1549-9626},
year = {2019},
date = {2019-03-12},
journal = {J. Chem. Theory Comput.},
volume = {15},
number = {3},
pages = {1503--1513},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hassan Denawi; Mathieu Abel; Roland Hayn
Magnetic Polymer Chains of Transition Metal Atoms and Zwitterionic Quinone Article de journal
Dans: J. Phys. Chem. C, vol. 123, no. 7, p. 4582–4589, 2019, ISSN: 1932-7455.
@article{Denawi2019,
title = {Magnetic Polymer Chains of Transition Metal Atoms and Zwitterionic Quinone},
author = {Hassan Denawi and Mathieu Abel and Roland Hayn},
doi = {10.1021/acs.jpcc.8b12433},
issn = {1932-7455},
year = {2019},
date = {2019-02-21},
journal = {J. Phys. Chem. C},
volume = {123},
number = {7},
pages = {4582--4589},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Valentinuzzi; Y. Marandet; H. Bufferand; G. Ciraolo; P. Tamain
Two-phases hybrid model for neutrals Article de journal
Dans: Nuclear Materials and Energy, vol. 18, p. 41–45, 2019, ISSN: 2352-1791.
@article{Valentinuzzi2019,
title = {Two-phases hybrid model for neutrals},
author = {M. Valentinuzzi and Y. Marandet and H. Bufferand and G. Ciraolo and P. Tamain},
doi = {10.1016/j.nme.2018.12.003},
issn = {2352-1791},
year = {2019},
date = {2019-01-01},
journal = {Nuclear Materials and Energy},
volume = {18},
pages = {41--45},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
H. Bufferand; P. Tamain; S. Baschetti; J. Bucalossi; G. Ciraolo; N. Fedorczak; Ph. Ghendrih; F. Nespoli; F. Schwander; E. Serre; Y. Marandet
Three-dimensional modelling of edge multi-component plasma taking into account realistic wall geometry Article de journal
Dans: Nuclear Materials and Energy, vol. 18, p. 82–86, 2019, ISSN: 2352-1791.
@article{Bufferand2019,
title = {Three-dimensional modelling of edge multi-component plasma taking into account realistic wall geometry},
author = {H. Bufferand and P. Tamain and S. Baschetti and J. Bucalossi and G. Ciraolo and N. Fedorczak and Ph. Ghendrih and F. Nespoli and F. Schwander and E. Serre and Y. Marandet},
doi = {10.1016/j.nme.2018.11.025},
issn = {2352-1791},
year = {2019},
date = {2019-01-01},
journal = {Nuclear Materials and Energy},
volume = {18},
pages = {82--86},
publisher = {Elsevier BV},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2018
Nicolas Cavassilas; Demetrio Logoteta; Youseung Lee; Fabienne Michelini; Michel Lannoo; Marc Bescond; Mathieu Luisier
Dual-Gated WTe2/MoSe2 van der Waals Tandem Solar Cells Article de journal
Dans: J. Phys. Chem. C, vol. 122, no. 50, p. 28545–28549, 2018, ISSN: 1932-7455.
@article{Cavassilas2018,
title = {Dual-Gated WTe_{2}/MoSe_{2} van der Waals Tandem Solar Cells},
author = {Nicolas Cavassilas and Demetrio Logoteta and Youseung Lee and Fabienne Michelini and Michel Lannoo and Marc Bescond and Mathieu Luisier},
doi = {10.1021/acs.jpcc.8b09905},
issn = {1932-7455},
year = {2018},
date = {2018-12-20},
journal = {J. Phys. Chem. C},
volume = {122},
number = {50},
pages = {28545--28549},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. L. M. Rocco; M. Häming; C. E. V. de Moura; M. Barbatti; A. B. Rocha; A. Schöll; E. Umbach
High-Resolution Near-Edge X-ray Absorption Fine Structure Study of Condensed Polyacenes Article de journal
Dans: J. Phys. Chem. C, vol. 122, no. 50, p. 28692–28701, 2018, ISSN: 1932-7455.
@article{Rocco2018b,
title = {High-Resolution Near-Edge X-ray Absorption Fine Structure Study of Condensed Polyacenes},
author = {M. L. M. Rocco and M. Häming and C. E. V. de Moura and M. Barbatti and A. B. Rocha and A. Schöll and E. Umbach},
doi = {10.1021/acs.jpcc.8b08945},
issn = {1932-7455},
year = {2018},
date = {2018-12-20},
journal = {J. Phys. Chem. C},
volume = {122},
number = {50},
pages = {28692--28701},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. L. M. Rocco; M. Häming; C. E. V. de Moura; M. Barbatti; A. B. Rocha; A. Schöll; E. Umbach
High-Resolution Near-Edge X-ray Absorption Fine Structure Study of Condensed Polyacenes Article de journal
Dans: J. Phys. Chem. C, vol. 122, no. 50, p. 28692–28701, 2018, ISSN: 1932-7455.
@article{Rocco2018,
title = {High-Resolution Near-Edge X-ray Absorption Fine Structure Study of Condensed Polyacenes},
author = {M. L. M. Rocco and M. Häming and C. E. V. de Moura and M. Barbatti and A. B. Rocha and A. Schöll and E. Umbach},
doi = {10.1021/acs.jpcc.8b08945},
issn = {1932-7455},
year = {2018},
date = {2018-12-20},
journal = {J. Phys. Chem. C},
volume = {122},
number = {50},
pages = {28692--28701},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
K Ješko; Y Marandet; H Bufferand; J P Gunn; H J van der Meiden; G Ciraolo
Studying divertor relevant plasmas in the Pilot-PSI linear plasma device: experiments versus modelling Article de journal
Dans: Plasma Phys. Control. Fusion, vol. 60, no. 12, 2018, ISSN: 1361-6587.
@article{Ješko2018,
title = {Studying divertor relevant plasmas in the Pilot-PSI linear plasma device: experiments versus modelling},
author = {K Ješko and Y Marandet and H Bufferand and J P Gunn and H J van der Meiden and G Ciraolo},
doi = {10.1088/1361-6587/aae80d},
issn = {1361-6587},
year = {2018},
date = {2018-12-01},
journal = {Plasma Phys. Control. Fusion},
volume = {60},
number = {12},
publisher = {IOP Publishing},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
B. Favier; J. Purseed; L. Duchemin
Rayleigh–Bénard convection with a melting boundary Article de journal
Dans: J. Fluid Mech., vol. 858, p. 437–473, 2018, ISSN: 1469-7645.
@article{Favier2018,
title = {Rayleigh–Bénard convection with a melting boundary},
author = {B. Favier and J. Purseed and L. Duchemin},
doi = {10.1017/jfm.2018.773},
issn = {1469-7645},
year = {2018},
date = {2018-11-06},
journal = {J. Fluid Mech.},
volume = {858},
pages = {437--473},
publisher = {Cambridge University Press (CUP)},
abstract = {We study the evolution of a melting front between the solid and liquid phases of a pure incompressible material where fluid motions are driven by unstable temperature gradients. In a plane-layer geometry, this can be seen as classical Rayleigh–Bénard convection where the upper solid boundary is allowed to melt due to the heat flux brought by the fluid underneath. This free-boundary problem is studied numerically in two dimensions using a phase-field approach, classically used to study the melting and solidification of alloys, which we dynamically couple with the Navier–Stokes equations in the Boussinesq approximation. The advantage of this approach is that it requires only moderate modifications of classical numerical methods. We focus on the case where the solid is initially nearly isothermal, so that the evolution of the topography is related to the inhomogeneous heat flux from thermal convection, and does not depend on the conduction problem in the solid. From a very thin stable layer of fluid, convection cells appear as the depth – and therefore the effective Rayleigh number – of the layer increases. The continuous melting of the solid leads to dynamical transitions between different convection cell sizes and topography amplitudes. The Nusselt number can be larger than its value for a planar upper boundary, due to the feedback of the topography on the flow, which can stabilize large-scale laminar convection cells. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Konstantin Falahati; Hiroyuki Tamura; Irene Burghardt; Miquel Huix-Rotllant
Ultrafast carbon monoxide photolysis and heme spin-crossover in myoglobin via nonadiabatic quantum dynamics Article de journal
Dans: Nat Commun, vol. 9, no. 1, 2018, ISSN: 2041-1723.
@article{Falahati2018,
title = {Ultrafast carbon monoxide photolysis and heme spin-crossover in myoglobin via nonadiabatic quantum dynamics},
author = {Konstantin Falahati and Hiroyuki Tamura and Irene Burghardt and Miquel Huix-Rotllant},
doi = {10.1038/s41467-018-06615-1},
issn = {2041-1723},
year = {2018},
date = {2018-10-29},
journal = {Nat Commun},
volume = {9},
number = {1},
publisher = {Springer Science and Business Media LLC},
abstract = {<jats:title>Abstract</jats:title><jats:p>Light absorption of myoglobin triggers diatomic ligand photolysis and a spin crossover transition of iron(II) that initiate protein conformational change. The photolysis and spin crossover reactions happen concurrently on a femtosecond timescale. The microscopic origin of these reactions remains controversial. Here, we apply quantum wavepacket dynamics to elucidate the ultrafast photochemical mechanism for a heme–carbon monoxide (heme–CO) complex. We observe coherent oscillations of the Fe–CO bond distance with a period of 42 fs and an amplitude of ∼1 Å. These nuclear motions induce pronounced geometric reorganization, which makes the CO dissociation irreversible. The reaction is initially dominated by symmetry breaking vibrations inducing an electron transfer from porphyrin to iron. Subsequently, the wavepacket relaxes to the triplet manifold in ∼75 fs and to the quintet manifold in ∼430 fs. Our results highlight the central role of nuclear vibrations at the origin of the ultrafast photodynamics of organometallic complexes.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Grégoire David; Frank Wennmohs; Frank Neese; Nicolas Ferré
Chemical Tuning of Magnetic Exchange Couplings Using Broken-Symmetry Density Functional Theory Article de journal
Dans: Inorg. Chem., vol. 57, no. 20, p. 12769–12776, 2018, ISSN: 1520-510X.
@article{David2018,
title = {Chemical Tuning of Magnetic Exchange Couplings Using Broken-Symmetry Density Functional Theory},
author = {Grégoire David and Frank Wennmohs and Frank Neese and Nicolas Ferré},
doi = {10.1021/acs.inorgchem.8b01970},
issn = {1520-510X},
year = {2018},
date = {2018-10-15},
journal = {Inorg. Chem.},
volume = {57},
number = {20},
pages = {12769--12776},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pavlo O. Dral; Mario Barbatti; Walter Thiel
Nonadiabatic Excited-State Dynamics with Machine Learning Article de journal
Dans: J. Phys. Chem. Lett., vol. 9, no. 19, p. 5660–5663, 2018, ISSN: 1948-7185.
@article{Dral2018,
title = {Nonadiabatic Excited-State Dynamics with Machine Learning},
author = {Pavlo O. Dral and Mario Barbatti and Walter Thiel},
doi = {10.1021/acs.jpclett.8b02469},
issn = {1948-7185},
year = {2018},
date = {2018-10-04},
journal = {J. Phys. Chem. Lett.},
volume = {9},
number = {19},
pages = {5660--5663},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vanessa C. de Medeiros; Railton B. de Andrade; Gessenildo P. Rodrigues; Glauco F. Bauerfeldt; Elizete Ventura; Mario Barbatti; Silmar A. do Monte
Photochemistry of CF3Cl: Quenching of Charged Fragments Is Caused by Nonadiabatic Effects Article de journal
Dans: J. Chem. Theory Comput., vol. 14, no. 9, p. 4844–4855, 2018, ISSN: 1549-9626.
@article{deMedeiros2018,
title = {Photochemistry of CF_{3}Cl: Quenching of Charged Fragments Is Caused by Nonadiabatic Effects},
author = {Vanessa C. de Medeiros and Railton B. de Andrade and Gessenildo P. Rodrigues and Glauco F. Bauerfeldt and Elizete Ventura and Mario Barbatti and Silmar A. do Monte},
doi = {10.1021/acs.jctc.8b00457},
issn = {1549-9626},
year = {2018},
date = {2018-09-11},
journal = {J. Chem. Theory Comput.},
volume = {14},
number = {9},
pages = {4844--4855},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Alexis Bottero; Paul Cristini; Dimitri Komatitsch; Quentin Brissaud
Broadband transmission losses and time dispersion maps from time-domain numerical simulations in ocean acoustics Article de journal
Dans: vol. 144, no. 3, p. EL222–EL228, 2018, ISSN: 1520-8524.
@article{Bottero2018,
title = {Broadband transmission losses and time dispersion maps from time-domain numerical simulations in ocean acoustics},
author = {Alexis Bottero and Paul Cristini and Dimitri Komatitsch and Quentin Brissaud},
doi = {10.1121/1.5055787},
issn = {1520-8524},
year = {2018},
date = {2018-09-01},
volume = {144},
number = {3},
pages = {EL222--EL228},
publisher = {Acoustical Society of America (ASA)},
abstract = {In this letter, a procedure for the calculation of transmission loss maps from numerical simulations in the time domain is presented. It can be generalized to arbitrary time sequences and to elastic media and provides an insight into how energy spreads into a complex configuration. In addition, time dispersion maps can be generated. These maps provide additional information on how energy is distributed over time. Transmission loss and time dispersion maps are generated at a negligible additional computational cost. To illustrate the type of transmission loss maps that can be produced by the time-domain method, the problem of the classical two-dimensional upslope wedge with a fluid bottom is addressed. The results obtained are compared to those obtained previously based on a parabolic equation. Then, for the same configuration, maps for an elastic bottom and maps for non-monochromatic signals are computed. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hans Lischka; Dana Nachtigallová; Adélia J. A. Aquino; Péter G. Szalay; Felix Plasser; Francisco B. C. Machado; Mario Barbatti
Multireference Approaches for Excited States of Molecules Article de journal
Dans: Chem. Rev., vol. 118, no. 15, p. 7293–7361, 2018, ISSN: 1520-6890.
@article{Lischka2018,
title = {Multireference Approaches for Excited States of Molecules},
author = {Hans Lischka and Dana Nachtigallová and Adélia J. A. Aquino and Péter G. Szalay and Felix Plasser and Francisco B. C. Machado and Mario Barbatti},
doi = {10.1021/acs.chemrev.8b00244},
issn = {1520-6890},
year = {2018},
date = {2018-08-08},
journal = {Chem. Rev.},
volume = {118},
number = {15},
pages = {7293--7361},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Rachel Crespo-Otero; Mario Barbatti
Recent Advances and Perspectives on Nonadiabatic Mixed Quantum–Classical Dynamics Article de journal
Dans: Chem. Rev., vol. 118, no. 15, p. 7026–7068, 2018, ISSN: 1520-6890.
@article{Crespo-Otero2018,
title = {Recent Advances and Perspectives on Nonadiabatic Mixed Quantum–Classical Dynamics},
author = {Rachel Crespo-Otero and Mario Barbatti},
doi = {10.1021/acs.chemrev.7b00577},
issn = {1520-6890},
year = {2018},
date = {2018-08-08},
journal = {Chem. Rev.},
volume = {118},
number = {15},
pages = {7026--7068},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fábris Kossoski; Mario Barbatti
Nuclear Ensemble Approach with Importance Sampling Article de journal
Dans: J. Chem. Theory Comput., vol. 14, no. 6, p. 3173–3183, 2018, ISSN: 1549-9626.
@article{Kossoski2018,
title = {Nuclear Ensemble Approach with Importance Sampling},
author = {Fábris Kossoski and Mario Barbatti},
doi = {10.1021/acs.jctc.8b00059},
issn = {1549-9626},
year = {2018},
date = {2018-06-12},
journal = {J. Chem. Theory Comput.},
volume = {14},
number = {6},
pages = {3173--3183},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
S. Cabanes; B. Favier; M. Le Bars
Some statistical properties of three-dimensional zonostrophic turbulence Article de journal
Dans: Geophysical & Astrophysical Fluid Dynamics, vol. 112, no. 3, p. 207–221, 2018, ISSN: 1029-0419.
@article{Cabanes2018,
title = {Some statistical properties of three-dimensional zonostrophic turbulence},
author = {S. Cabanes and B. Favier and M. Le Bars},
doi = {10.1080/03091929.2018.1467413},
issn = {1029-0419},
year = {2018},
date = {2018-05-04},
journal = {Geophysical & Astrophysical Fluid Dynamics},
volume = {112},
number = {3},
pages = {207--221},
publisher = {Informa UK Limited},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Cristina García-Iriepa; Pauline Gosset; Romain Berraud-Pache; Madjid Zemmouche; Grégory Taupier; Kokou Dodzi Dorkenoo; Pascal Didier; Jérémie Léonard; Nicolas Ferré; Isabelle Navizet
Simulation and Analysis of the Spectroscopic Properties of Oxyluciferin and Its Analogues in Water Article de journal
Dans: J. Chem. Theory Comput., vol. 14, no. 4, p. 2117–2126, 2018, ISSN: 1549-9626.
@article{García-Iriepa2018,
title = {Simulation and Analysis of the Spectroscopic Properties of Oxyluciferin and Its Analogues in Water},
author = {Cristina García-Iriepa and Pauline Gosset and Romain Berraud-Pache and Madjid Zemmouche and Grégory Taupier and Kokou Dodzi Dorkenoo and Pascal Didier and Jérémie Léonard and Nicolas Ferré and Isabelle Navizet},
doi = {10.1021/acs.jctc.7b01240},
issn = {1549-9626},
year = {2018},
date = {2018-04-10},
journal = {J. Chem. Theory Comput.},
volume = {14},
number = {4},
pages = {2117--2126},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sylvain Chateau; Umberto D'Ortona; Sébastien Poncet; Julien Favier
Transport and Mixing Induced by Beating Cilia in Human Airways Article de journal
Dans: Front. Physiol., vol. 9, 2018, ISSN: 1664-042X.
@article{Chateau2018,
title = {Transport and Mixing Induced by Beating Cilia in Human Airways},
author = {Sylvain Chateau and Umberto D'Ortona and Sébastien Poncet and Julien Favier},
doi = {10.3389/fphys.2018.00161},
issn = {1664-042X},
year = {2018},
date = {2018-03-06},
journal = {Front. Physiol.},
volume = {9},
publisher = {Frontiers Media SA},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
K. Sandeep Reddy; Benjamin Favier; Michael Le Bars
Turbulent Kinematic Dynamos in Ellipsoids Driven by Mechanical Forcing Article de journal
Dans: Geophysical Research Letters, vol. 45, no. 4, p. 1741–1750, 2018, ISSN: 1944-8007.
@article{Reddy2018,
title = {Turbulent Kinematic Dynamos in Ellipsoids Driven by Mechanical Forcing},
author = {K. Sandeep Reddy and Benjamin Favier and Michael Le Bars},
doi = {10.1002/2017gl076542},
issn = {1944-8007},
year = {2018},
date = {2018-02-28},
journal = {Geophysical Research Letters},
volume = {45},
number = {4},
pages = {1741--1750},
publisher = {American Geophysical Union (AGU)},
abstract = {Abstract Dynamo action in planetary cores has been extensively studied in the context of convectively driven flows. We show in this letter that mechanical forcings, namely, tides, libration, and precession, are also able to kinematically sustain a magnetic field against ohmic diffusion. Previous attempts published in the literature focused on the laminar response or considered idealized spherical configurations. In contrast, we focus here on the developed turbulent regime and we self‐consistently solve the magnetohydrodynamic equations in an ellipsoidal container. Our results open new avenues of research in dynamo theory where both convection and mechanical forcing can play a role, independently or simultaneously. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Thomas Le Reun; Benjamin Favier; Michael Le Bars
Parametric instability and wave turbulence driven by tidal excitation of internal waves Article de journal
Dans: J. Fluid Mech., vol. 840, p. 498–529, 2018, ISSN: 1469-7645.
@article{LeReun2018,
title = {Parametric instability and wave turbulence driven by tidal excitation of internal waves},
author = {Thomas Le Reun and Benjamin Favier and Michael Le Bars},
doi = {10.1017/jfm.2018.18},
issn = {1469-7645},
year = {2018},
date = {2018-02-14},
journal = {J. Fluid Mech.},
volume = {840},
pages = {498--529},
publisher = {Cambridge University Press (CUP)},
abstract = {We investigate the stability of stratified fluid layers undergoing homogeneous and periodic tidal deformation. We first introduce a local model which allows us to study velocity and buoyancy fluctuations in a Lagrangian domain periodically stretched and sheared by the tidal base flow. While keeping the key physical ingredients only, such a model is efficient in simulating planetary regimes where tidal amplitudes and dissipation are small. With this model, we prove that tidal flows are able to drive parametric subharmonic resonances of internal waves, in a way reminiscent of the elliptical instability in rotating fluids. The growth rates computed via direct numerical simulations (DNSs) are in very good agreement with Wentzel–Kramers–Brillouin analysis and Floquet theory. We also investigate the turbulence driven by this instability mechanism. With spatio-temporal analysis, we show that it is weak internal wave turbulence occurring at small Froude and buoyancy Reynolds numbers. When the gap between the excitation and the Brunt–Väisälä frequencies is increased, the frequency spectrum of this wave turbulence displays a $-2$ power law reminiscent of the high-frequency branch of the Garett and Munk spectrum (Geophys. Fluid Dyn. , vol. 3 (1), 1972, pp. 225–264) which has been measured in the oceans. In addition, we find that the mixing efficiency is altered compared to what is computed in the context of DNS of stratified turbulence excited at small Froude and large buoyancy Reynolds numbers and is consistent with a superposition of waves. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2017
Ljiljana Stojanović; Saadullah G. Aziz; Rifaat H. Hilal; Felix Plasser; Thomas A. Niehaus; Mario Barbatti
Nonadiabatic Dynamics of Cycloparaphenylenes with TD-DFTB Surface Hopping Article de journal
Dans: J. Chem. Theory Comput., vol. 13, no. 12, p. 5846–5860, 2017, ISSN: 1549-9626.
@article{Stojanović2017,
title = {Nonadiabatic Dynamics of Cycloparaphenylenes with TD-DFTB Surface Hopping},
author = {Ljiljana Stojanović and Saadullah G. Aziz and Rifaat H. Hilal and Felix Plasser and Thomas A. Niehaus and Mario Barbatti},
doi = {10.1021/acs.jctc.7b01000},
issn = {1549-9626},
year = {2017},
date = {2017-12-12},
journal = {J. Chem. Theory Comput.},
volume = {13},
number = {12},
pages = {5846--5860},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shuming Bai; Mario Barbatti
Divide-to-Conquer: A Kinetic Model for Singlet Oxygen Photosensitization Article de journal
Dans: J. Chem. Theory Comput., vol. 13, no. 11, p. 5528–5538, 2017, ISSN: 1549-9626.
@article{Bai2017b,
title = {Divide-to-Conquer: A Kinetic Model for Singlet Oxygen Photosensitization},
author = {Shuming Bai and Mario Barbatti},
doi = {10.1021/acs.jctc.7b00619},
issn = {1549-9626},
year = {2017},
date = {2017-11-14},
journal = {J. Chem. Theory Comput.},
volume = {13},
number = {11},
pages = {5528--5538},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shuming Bai; Mario Barbatti
Spatial Factors for Triplet Fusion Reaction of Singlet Oxygen Photosensitization Article de journal
Dans: J. Phys. Chem. Lett., vol. 8, no. 21, p. 5456–5460, 2017, ISSN: 1948-7185.
@article{Bai2017,
title = {Spatial Factors for Triplet Fusion Reaction of Singlet Oxygen Photosensitization},
author = {Shuming Bai and Mario Barbatti},
doi = {10.1021/acs.jpclett.7b02574},
issn = {1948-7185},
year = {2017},
date = {2017-11-02},
journal = {J. Phys. Chem. Lett.},
volume = {8},
number = {21},
pages = {5456--5460},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Daniele Fazzi; Mario Barbatti; Walter Thiel
Hot and Cold Charge-Transfer Mechanisms in Organic Photovoltaics: Insights into the Excited States of Donor/Acceptor Interfaces Article de journal
Dans: J. Phys. Chem. Lett., vol. 8, no. 19, p. 4727–4734, 2017, ISSN: 1948-7185.
@article{Fazzi2017,
title = {Hot and Cold Charge-Transfer Mechanisms in Organic Photovoltaics: Insights into the Excited States of Donor/Acceptor Interfaces},
author = {Daniele Fazzi and Mario Barbatti and Walter Thiel},
doi = {10.1021/acs.jpclett.7b02144},
issn = {1948-7185},
year = {2017},
date = {2017-10-05},
journal = {J. Phys. Chem. Lett.},
volume = {8},
number = {19},
pages = {4727--4734},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E. Athanassoula; S. A. Rodionov; N. Prantzos
Metallicity-dependent kinematics and morphology of the Milky Way bulge Article de journal
Dans: vol. 467, no. 1, p. L46–L50, 2017, ISSN: 1745-3933.
@article{Athanassoula2016,
title = {Metallicity-dependent kinematics and morphology of the Milky Way bulge},
author = {E. Athanassoula and S. A. Rodionov and N. Prantzos},
doi = {10.1093/mnrasl/slw255},
issn = {1745-3933},
year = {2017},
date = {2017-05-01},
volume = {467},
number = {1},
pages = {L46--L50},
publisher = {Oxford University Press (OUP)},
abstract = {Abstract
We use N-body chemo-dynamic simulations to study the coupling between morphology, kinematics and metallicity of the bar/bulge region of our Galaxy. We make qualitative comparisons of our results with available observations and find very good agreement. We conclude that this region is complex, since it comprises several stellar components with different properties – i.e. a boxy/peanut bulge, thin and thick disc components, and, to lesser extents, a disky pseudo-bulge, a stellar halo and a small classical bulge – all cohabiting in dynamical equilibrium. Our models show strong links between kinematics and metallicity, or morphology and metallicity, as already suggested by a number of recent observations. We discuss and explain these links. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
O. Agullo; M. Muraglia; S. Benkadda; A. Poyé; N. Dubuit; X. Garbet; A. Sen
Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations Article de journal
Dans: vol. 24, no. 4, 2017, ISSN: 1089-7674.
@article{Agullo2017,
title = {Nonlinear dynamics of turbulence driven magnetic islands. II. Numerical simulations},
author = {O. Agullo and M. Muraglia and S. Benkadda and A. Poyé and N. Dubuit and X. Garbet and A. Sen},
doi = {10.1063/1.4981230},
issn = {1089-7674},
year = {2017},
date = {2017-04-01},
volume = {24},
number = {4},
publisher = {AIP Publishing},
abstract = {The nonlinear dynamics of a turbulence driven magnetic island (TDMI) is investigated numerically in a reduced magnetohydrodynamic fluid model. The significance of identifying a characteristic signature of a TDMI for its experimental observation is discussed. The principal focus of our simulations is on the nature of the pressure profile flattening inside a TDMI, and we show that, in agreement with analytical predictions, a partial flattening occurs when the island size exceeds a critical value that is a function of the small scale interchange dynamics. We also present a model and test it numerically, which links explicitly the interchange turbulence and the island pressure flattening. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
O. Agullo; M. Muraglia; S. Benkadda; A. Poyé; N. Dubuit; X. Garbet; A. Sen
Nonlinear dynamics of turbulence driven magnetic islands. I. Theoretical aspects Article de journal
Dans: vol. 24, no. 4, 2017, ISSN: 1089-7674.
@article{Agullo2017b,
title = {Nonlinear dynamics of turbulence driven magnetic islands. I. Theoretical aspects},
author = {O. Agullo and M. Muraglia and S. Benkadda and A. Poyé and N. Dubuit and X. Garbet and A. Sen},
doi = {10.1063/1.4981229},
issn = {1089-7674},
year = {2017},
date = {2017-04-01},
volume = {24},
number = {4},
publisher = {AIP Publishing},
abstract = {The nonlinear properties of a turbulence driven magnetic island (TDMI) are investigated. Starting from a minimal magnetohydrodynamic fluid model that provides for the generation of a TDMI and using scale separation arguments along with numerical simulation findings, we elucidate the links between the nonlinear transport properties of such magnetic islands and the characteristic features of the small scale turbulence. We also explain the phenomenon of partial pressure flattening inside the TDMI. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
S. A. Rodionov; E. Athanassoula; N. Peschken
Forming disk galaxies in major mergers Article de journal
Dans: A&A, vol. 600, 2017, ISSN: 1432-0746.
@article{Rodionov2017,
title = {Forming disk galaxies in major mergers},
author = {S. A. Rodionov and E. Athanassoula and N. Peschken},
doi = {10.1051/0004-6361/201628319},
issn = {1432-0746},
year = {2017},
date = {2017-03-22},
journal = {A&A},
volume = {600},
publisher = {EDP Sciences},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Xing Gao; Shuming Bai; Daniele Fazzi; Thomas Niehaus; Mario Barbatti; Walter Thiel
Evaluation of Spin-Orbit Couplings with Linear-Response Time-Dependent Density Functional Methods Article de journal
Dans: J. Chem. Theory Comput., vol. 13, no. 2, p. 515–524, 2017, ISSN: 1549-9626.
@article{Gao2017,
title = {Evaluation of Spin-Orbit Couplings with Linear-Response Time-Dependent Density Functional Methods},
author = {Xing Gao and Shuming Bai and Daniele Fazzi and Thomas Niehaus and Mario Barbatti and Walter Thiel},
doi = {10.1021/acs.jctc.6b00915},
issn = {1549-9626},
year = {2017},
date = {2017-02-14},
journal = {J. Chem. Theory Comput.},
volume = {13},
number = {2},
pages = {515--524},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dmytro Kandaskalov; Philippe Maugis
A first-principle study of the structural, elastic, lattice dynamical and thermodynamic properties of a''-e16C2 and a''-Fe16N2 phases Article de journal
Dans: Computational Materials Science, vol. 128, p. 278-286, 2017, ISSN: 0927-0256.
@article{KANDASKALOV2017278b,
title = {A first-principle study of the structural, elastic, lattice dynamical and thermodynamic properties of a''-e16C2 and a''-Fe16N2 phases},
author = {Dmytro Kandaskalov and Philippe Maugis},
url = {https://www.sciencedirect.com/science/article/pii/S0927025616305730},
doi = {https://doi.org/10.1016/j.commatsci.2016.11.022},
issn = {0927-0256},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
journal = {Computational Materials Science},
volume = {128},
pages = {278-286},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2016
A. M. Grannan; B. Favier; M. Le Bars; J. M. Aurnou
Tidally-forced turbulence in planetary interiors Article de journal
Dans: Geophys. J. Int., 2016, ISSN: 1365-246X.
@article{Grannan2016,
title = {Tidally-forced turbulence in planetary interiors},
author = {A. M. Grannan and B. Favier and M. Le Bars and J. M. Aurnou},
doi = {10.1093/gji/ggw479},
issn = {1365-246X},
year = {2016},
date = {2016-12-23},
journal = {Geophys. J. Int.},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Yougang Wang; E. Athanassoula; Shude Mao
Orbital classification in anN-body bar Article de journal
Dans: Mon. Not. R. Astron. Soc., vol. 463, no. 4, p. 3499–3512, 2016, ISSN: 1365-2966.
@article{Wang2016,
title = {Orbital classification in an\textit{N}-body bar},
author = {Yougang Wang and E. Athanassoula and Shude Mao},
doi = {10.1093/mnras/stw2301},
issn = {1365-2966},
year = {2016},
date = {2016-12-21},
journal = {Mon. Not. R. Astron. Soc.},
volume = {463},
number = {4},
pages = {3499--3512},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ljiljana Stojanović; Abdulrahman O. Alyoubi; Saadullah G. Aziz; Rifaat H. Hilal; Mario Barbatti
UV excitations of halons Article de journal
Dans: vol. 145, no. 18, 2016, ISSN: 1089-7690.
@article{Stojanović2016b,
title = {UV excitations of halons},
author = {Ljiljana Stojanović and Abdulrahman O. Alyoubi and Saadullah G. Aziz and Rifaat H. Hilal and Mario Barbatti},
doi = {10.1063/1.4967170},
issn = {1089-7690},
year = {2016},
date = {2016-11-14},
volume = {145},
number = {18},
publisher = {AIP Publishing},
abstract = {In the present study, we examined the UV excitations of a newly introduced molecular set, Halons-9, composed of nine gaseous halon molecules. The performance of the density functional-based multi-reference configuration interaction method (DFT/MRCI) and time-dependent density functional theory with CAM-B3LYP functional (TD-CAM-B3LYP) in the computation of singlet and triplet excited states of this set was evaluated against coupled-cluster with singles and doubles (CCSD). Excited states up to the corresponding ionization limits, including both localized and delocalized excitations, have been benchmarked. TD-CAM-B3LYP significantly underestimates excitation energies of the higher mixed valence-Rydberg and Rydberg states, with computed mean absolute deviations from the equation of motion (EOM)-CCSD results 1.06 and 0.76 eV, respectively. DFT/MRCI gives a significantly better description of higher excited states, albeit still poor, compared to the TD-CAM-B3LYP. The mean absolute deviations of mixed valence-Rydberg and Rydberg states from the reference EOM-CCSD values are 0.66 and 0.47 eV, respectively. The performance of DFT/MRCI for description of strongly correlated states with valence-Rydberg mixing is still not satisfactory enough. On the other hand, oscillator strengths of most of singlet states obtained with both methods are close to the EOM-CCSD values. The largest deviations, occurring in the case of several high-lying multiconfigurational states, are of an order of magnitude. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Taehyun Kim; Dimitri A. Gadotti; E. Athanassoula; Albert Bosma; Kartik Sheth; Myung Gyoon Lee
Evidence of bar-induced secular evolution in the inner regions of stellar discs in galaxies: what shapes disc galaxies? Article de journal
Dans: Mon. Not. R. Astron. Soc., vol. 462, no. 4, p. 3430–3440, 2016, ISSN: 1365-2966.
@article{Kim2016,
title = {Evidence of bar-induced secular evolution in the inner regions of stellar discs in galaxies: what shapes disc galaxies?},
author = {Taehyun Kim and Dimitri A. Gadotti and E. Athanassoula and Albert Bosma and Kartik Sheth and Myung Gyoon Lee},
doi = {10.1093/mnras/stw1899},
issn = {1365-2966},
year = {2016},
date = {2016-11-11},
journal = {Mon. Not. R. Astron. Soc.},
volume = {462},
number = {4},
pages = {3430--3440},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Alexis Bottero; Paul Cristini; Dimitri Komatitsch; Mark Asch
An axisymmetric time-domain spectral-element method for full-wave simulations: Application to ocean acoustics Article de journal
Dans: vol. 140, no. 5, p. 3520–3530, 2016, ISSN: 1520-8524.
@article{Bottero2016,
title = {An axisymmetric time-domain spectral-element method for full-wave simulations: Application to ocean acoustics},
author = {Alexis Bottero and Paul Cristini and Dimitri Komatitsch and Mark Asch},
doi = {10.1121/1.4965964},
issn = {1520-8524},
year = {2016},
date = {2016-11-01},
volume = {140},
number = {5},
pages = {3520--3530},
publisher = {Acoustical Society of America (ASA)},
abstract = {The numerical simulation of acoustic waves in complex three-dimensional (3D) media is a key topic in many branches of science, from exploration geophysics to non-destructive testing and medical imaging. With the drastic increase in computing capabilities this field has dramatically grown in the last 20 years. However many 3D computations, especially at high frequency and/or long range, are still far beyond current reach and force researchers to resort to approximations, for example, by working in two dimensions (plane strain) or by using a paraxial approximation. This article presents and validates a numerical technique based on an axisymmetric formulation of a spectral finite-element method in the time domain for heterogeneous fluid-solid media. Taking advantage of axisymmetry enables the study of relevant 3D configurations at a very moderate computational cost. The axisymmetric spectral-element formulation is first introduced, and validation tests are then performed. A typical application of interest in ocean acoustics showing upslope propagation above a dipping viscoelastic ocean bottom is then presented. The method correctly models backscattered waves and explains the transmission losses discrepancies pointed out in F. B. Jensen, P. L. Nielsen, M. Zampolli, M. D. Collins, and W. L. Siegmann, Proceedings of the 8th International Conference on Theoretical and Computational Acoustics (ICTCA) (2007). Finally, a realistic application to a double seamount problem is considered. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Wilmer Arbelo-González; Rachel Crespo-Otero; Mario Barbatti
Steady and Time-Resolved Photoelectron Spectra Based on Nuclear Ensembles Article de journal
Dans: J. Chem. Theory Comput., vol. 12, no. 10, p. 5037–5049, 2016, ISSN: 1549-9626.
@article{Arbelo-González2016,
title = {Steady and Time-Resolved Photoelectron Spectra Based on Nuclear Ensembles},
author = {Wilmer Arbelo-González and Rachel Crespo-Otero and Mario Barbatti},
doi = {10.1021/acs.jctc.6b00704},
issn = {1549-9626},
year = {2016},
date = {2016-10-11},
journal = {J. Chem. Theory Comput.},
volume = {12},
number = {10},
pages = {5037--5049},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miquel Huix-Rotllant; Nicolas Ferré
An Effective Procedure for Analyzing Molecular Vibrations in Terms of Local Fragment Modes Article de journal
Dans: J. Chem. Theory Comput., vol. 12, no. 10, p. 4768–4777, 2016, ISSN: 1549-9626.
@article{Huix-Rotllant2016b,
title = {An Effective Procedure for Analyzing Molecular Vibrations in Terms of Local Fragment Modes},
author = {Miquel Huix-Rotllant and Nicolas Ferré},
doi = {10.1021/acs.jctc.6b00514},
issn = {1549-9626},
year = {2016},
date = {2016-10-11},
journal = {J. Chem. Theory Comput.},
volume = {12},
number = {10},
pages = {4768--4777},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ivana Antol; Zoran Glasovac; Davor Margetić; Rachel Crespo-Otero; Mario Barbatti
Insights on the Auxochromic Properties of the Guanidinium Group Article de journal
Dans: J. Phys. Chem. A, vol. 120, no. 36, p. 7088–7100, 2016, ISSN: 1520-5215.
@article{Antol2016,
title = {Insights on the Auxochromic Properties of the Guanidinium Group},
author = {Ivana Antol and Zoran Glasovac and Davor Margetić and Rachel Crespo-Otero and Mario Barbatti},
doi = {10.1021/acs.jpca.6b05180},
issn = {1520-5215},
year = {2016},
date = {2016-09-15},
journal = {J. Phys. Chem. A},
volume = {120},
number = {36},
pages = {7088--7100},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Shuming Bai; Mario Barbatti
Why Replacing Different Oxygens of Thymine with Sulfur Causes Distinct Absorption and Intersystem Crossing Article de journal
Dans: J. Phys. Chem. A, vol. 120, no. 32, p. 6342–6350, 2016, ISSN: 1520-5215.
@article{Bai2016,
title = {Why Replacing Different Oxygens of Thymine with Sulfur Causes Distinct Absorption and Intersystem Crossing},
author = {Shuming Bai and Mario Barbatti},
doi = {10.1021/acs.jpca.6b05110},
issn = {1520-5215},
year = {2016},
date = {2016-08-18},
journal = {J. Phys. Chem. A},
volume = {120},
number = {32},
pages = {6342--6350},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zhinan Xie; René Matzen; Paul Cristini; Dimitri Komatitsch; Roland Martin
A perfectly matched layer for fluid-solid problems: Application to ocean-acoustics simulations with solid ocean bottoms Article de journal
Dans: vol. 140, no. 1, p. 165–175, 2016, ISSN: 1520-8524.
@article{Xie2016,
title = {A perfectly matched layer for fluid-solid problems: Application to ocean-acoustics simulations with solid ocean bottoms},
author = {Zhinan Xie and René Matzen and Paul Cristini and Dimitri Komatitsch and Roland Martin},
doi = {10.1121/1.4954736},
issn = {1520-8524},
year = {2016},
date = {2016-07-01},
volume = {140},
number = {1},
pages = {165--175},
publisher = {Acoustical Society of America (ASA)},
abstract = {A time-domain Legendre spectral-element method is described for full-wave simulation of ocean acoustics models, i.e., coupled fluid-solid problems in unbounded or semi-infinite domains, taking into account shear wave propagation in the ocean bottom. The technique can accommodate range-dependent and depth-dependent wave speed and density, as well as steep ocean floor topography. For truncation of the infinite domain, to efficiently absorb outgoing waves, a fluid-solid complex-frequency-shifted unsplit perfectly matched layer is introduced based on the complex coordinate stretching technique. The complex stretching is rigorously taken into account in the derivation of the fluid-solid matching condition inside the absorbing layer, which has never been done before in the time domain. Two implementations are designed: a convolutional formulation and an auxiliary differential equation formulation because the latter allows for implementation of high-order time schemes, leading to reduced numerical dispersion and dissipation, a topic of importance, in particular, in long-range ocean acoustics simulations. The method is validated for a two dimensional fluid-solid Pekeris waveguide and for a three dimensional seamount model, which shows that the technique is accurate and numerically long-time stable. Compared with widely used paraxial absorbing boundary conditions, the perfectly matched layer is significantly more efficient at absorbing both body waves and interface waves. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Daniele Fazzi; Mario Barbatti; Walter Thiel
Unveiling the Role of Hot Charge-Transfer States in Molecular Aggregates via Nonadiabatic Dynamics Article de journal
Dans: J. Am. Chem. Soc., vol. 138, no. 13, p. 4502–4511, 2016, ISSN: 1520-5126.
@article{Fazzi2016,
title = {Unveiling the Role of \textit{Hot} Charge-Transfer States in Molecular Aggregates via Nonadiabatic Dynamics},
author = {Daniele Fazzi and Mario Barbatti and Walter Thiel},
doi = {10.1021/jacs.5b13210},
issn = {1520-5126},
year = {2016},
date = {2016-04-06},
journal = {J. Am. Chem. Soc.},
volume = {138},
number = {13},
pages = {4502--4511},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Jauzac; J. Richard; M. Limousin; K. Knowles; G. Mahler; G. P. Smith; J.-P. Kneib; E. Jullo; P. Natarajan; H. Ebeling; H. Atek; B. Clément; D. Eckert; E. Egami; R. Massey; M. Rexroth
Hubble Frontier Fields: predictions for the return of SN Refsdal with the MUSE and GMOS spectrographs Article de journal
Dans: Mon. Not. R. Astron. Soc., vol. 457, no. 2, p. 2029–2042, 2016, ISSN: 1365-2966.
@article{Jauzac2016,
title = {Hubble Frontier Fields: predictions for the return of SN Refsdal with the MUSE and GMOS spectrographs},
author = {M. Jauzac and J. Richard and M. Limousin and K. Knowles and G. Mahler and G. P. Smith and J.-P. Kneib and E. Jullo and P. Natarajan and H. Ebeling and H. Atek and B. Clément and D. Eckert and E. Egami and R. Massey and M. Rexroth},
doi = {10.1093/mnras/stw069},
issn = {1365-2966},
year = {2016},
date = {2016-04-01},
journal = {Mon. Not. R. Astron. Soc.},
volume = {457},
number = {2},
pages = {2029--2042},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
J. Gounley; G. Boedec; M. Jaeger; M. Leonetti
Influence of surface viscosity on droplets in shear flow Article de journal
Dans: J. Fluid Mech., vol. 791, p. 464–494, 2016, ISSN: 1469-7645.
@article{Gounley2016,
title = {Influence of surface viscosity on droplets in shear flow},
author = {J. Gounley and G. Boedec and M. Jaeger and M. Leonetti},
doi = {10.1017/jfm.2016.39},
issn = {1469-7645},
year = {2016},
date = {2016-02-22},
journal = {J. Fluid Mech.},
volume = {791},
pages = {464--494},
publisher = {Cambridge University Press (CUP)},
abstract = {The behaviour of a single droplet in an immiscible external fluid, submitted to shear flow is investigated using numerical simulations. The surface of the droplet is modelled by a Boussinesq–Scriven constitutive law involving the interfacial viscosities and a constant surface tension. A numerical method using Loop subdivision surfaces to represent droplet interface is introduced. This method couples boundary element method for fluid flows and finite element method to take into account the stresses due to the surface dilational and shear viscosities and surface tension. Validation of the numerical scheme with respect to previous analytic and computational work is provided, with particular attention to the viscosity contrast and the shear and dilational viscosities characterized both by a Boussinesq number$B_{q}$ . Then, influence of equal surface viscosities on steady-state characteristics of a droplet in shear flow are studied, considering both small and large deformations and for a large range of bulk viscosity contrast. We find that small deformation analysis is surprisingly predictive at moderate and high surface viscosities. Equal surface viscosities decrease the Taylor deformation parameter and tank-treading angle and also strongly modify the dynamics of the droplet: when the Boussinesq number (surface viscosity) is large relative to the capillary number (surface tension), the droplet displays damped oscillations prior to steady-state tank-treading, reminiscent from the behaviour at large viscosity contrast. In the limit of infinite capillary number$Ca$ , such oscillations are permanent. The influence of surface viscosities on breakup is also investigated, and results show that the critical capillary number is increased. A diagram$(B_{q};Ca)$ of breakup is established with the same inner and outer bulk viscosities. Additionally, the separate roles of shear and dilational surface viscosity are also elucidated, extending results from small deformation analysis. Indeed, shear (dilational) surface viscosity increases (decreases) the stability of drops to breakup under shear flow. The steady-state deformation (Taylor parameter) varies nonlinearly with each Boussinesq number or a linear combination of both Boussinesq numbers. Finally, the study shows that for certain combinations of shear and dilational viscosities, drop deformation for a given capillary number is the same as in the case of a clean surface while the inclination angle varies. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Y. Camenen; F. J. Casson; P. Manas; A. G. Peeters
Interplay between toroidal rotation and flow shear in turbulence stabilisation Article de journal
Dans: vol. 23, no. 2, 2016, ISSN: 1089-7674.
@article{Camenen2016,
title = {Interplay between toroidal rotation and flow shear in turbulence stabilisation},
author = {Y. Camenen and F. J. Casson and P. Manas and A. G. Peeters},
doi = {10.1063/1.4942422},
issn = {1089-7674},
year = {2016},
date = {2016-02-01},
volume = {23},
number = {2},
publisher = {AIP Publishing},
abstract = {The interplay between toroidal rotation u, parallel flow shear u′, and perpendicular flow shear γE in the stabilisation of tokamak turbulence is investigated in non-linear flux-tube gyrokinetic simulations. The simulations are performed for a reference L-mode DIII-D plasma (the so-called shortfall case) at r/a=0.8, varying the flow parameters around their nominal values. Depending on the respective signs of u, u′, and γE, turbulence is found to be enhanced, reduced, or unchanged. When the coupling is favorable, the overall effect on the non-linear heat fluxes can be very large, even at moderate flow values. The ion heat flux is, for instance, decreased by a factor of 3 when the direction of the parallel flow shear is reversed with respect to its nominal value. Even more surprising, keeping u′ and γE at their nominal values, the ion heat flux decreases by more than 50% when the toroidal flow is reversed. The relevance of this mechanism in the experiments which depends on the ability to decouple u, u′, and γE is discussed. The interplay between u and u′ observed in the non-linear simulations qualitatively follows the linear stability results and is interpreted in the frame of a simple fluid model. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
T. Cartier-Michaud; P. Ghendrih; Y. Sarazin; J. Abiteboul; H. Bufferand; G. Dif-Pradalier; X. Garbet; V. Grandgirard; G. Latu; C. Norscini; C. Passeron; P. Tamain
Projection on Proper elements for code control: Verification, numerical convergence, and reduced models. Application to plasma turbulence simulations Article de journal
Dans: vol. 23, no. 2, 2016, ISSN: 1089-7674.
@article{Cartier-Michaud2016,
title = {Projection on Proper elements for code control: Verification, numerical convergence, and reduced models. Application to plasma turbulence simulations},
author = {T. Cartier-Michaud and P. Ghendrih and Y. Sarazin and J. Abiteboul and H. Bufferand and G. Dif-Pradalier and X. Garbet and V. Grandgirard and G. Latu and C. Norscini and C. Passeron and P. Tamain},
doi = {10.1063/1.4941974},
issn = {1089-7674},
year = {2016},
date = {2016-02-01},
volume = {23},
number = {2},
publisher = {AIP Publishing},
abstract = {The Projection on Proper elements (PoPe) is a novel method of code control dedicated to (1) checking the correct implementation of models, (2) determining the convergence of numerical methods, and (3) characterizing the residual errors of any given solution at very low cost. The basic idea is to establish a bijection between a simulation and a set of equations that generate it. Recovering equations is direct and relies on a statistical measure of the weight of the various operators. This method can be used in any number of dimensions and any regime, including chaotic ones. This method also provides a procedure to design reduced models and quantify its ratio of cost to benefit. PoPe is applied to a kinetic and a fluid code of plasma turbulence. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2015
Dominique Eckert; Mathilde Jauzac; HuanYuan Shan; Jean-Paul Kneib; Thomas Erben; Holger Israel; Eric Jullo; Matthias Klein; Richard Massey; Johan Richard; Céline Tchernin
Warm–hot baryons comprise 5–10 per cent of filaments in the cosmic web Article de journal
Dans: Nature, vol. 528, no. 7580, p. 105–107, 2015, ISSN: 1476-4687.
@article{Eckert2015,
title = {Warm–hot baryons comprise 5–10 per cent of filaments in the cosmic web},
author = {Dominique Eckert and Mathilde Jauzac and HuanYuan Shan and Jean-Paul Kneib and Thomas Erben and Holger Israel and Eric Jullo and Matthias Klein and Richard Massey and Johan Richard and Céline Tchernin},
doi = {10.1038/nature16058},
issn = {1476-4687},
year = {2015},
date = {2015-12-02},
journal = {Nature},
volume = {528},
number = {7580},
pages = {105--107},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
T. Drouot; E. Gravier; T. Reveille; M. Collard
Self-generated zonal flows in the plasma turbulence driven by trapped-ion and trapped-electron instabilities Article de journal
Dans: vol. 22, no. 10, 2015, ISSN: 1089-7674.
@article{Drouot2015b,
title = {Self-generated zonal flows in the plasma turbulence driven by trapped-ion and trapped-electron instabilities},
author = {T. Drouot and E. Gravier and T. Reveille and M. Collard},
doi = {10.1063/1.4933358},
issn = {1089-7674},
year = {2015},
date = {2015-10-01},
volume = {22},
number = {10},
publisher = {AIP Publishing},
abstract = {This paper presents a study of zonal flows generated by trapped-electron mode and trapped-ion mode micro turbulence as a function of two plasma parameters—banana width and electron temperature. For this purpose, a gyrokinetic code considering only trapped particles is used. First, an analytical equation giving the predicted level of zonal flows is derived from the quasi-neutrality equation of our model, as a function of the density fluctuation levels and the banana widths. Then, the influence of the banana width on the number of zonal flows occurring in the system is studied using the gyrokinetic code. Finally, the impact of the temperature ratio Te/Ti on the reduction of zonal flows is shown and a close link is highlighted between reduction and different gyro-and-bounce-average ion and electron density fluctuation levels. This reduction is found to be due to the amplitudes of gyro-and-bounce-average density perturbations ne and ni gradually becoming closer, which is in agreement with the analytical results given by the quasi-neutrality equation. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
T. Drouot; E. Gravier; T. Reveille; M. Sarrat; M. Collard; P. Bertrand; T. Cartier-Michaud; P. Ghendrih; Y. Sarazin; X. Garbet
Global gyrokinetic simulations of trapped-electron mode and trapped-ion mode microturbulence Article de journal
Dans: vol. 22, no. 8, 2015, ISSN: 1089-7674.
@article{Drouot2015,
title = {Global gyrokinetic simulations of trapped-electron mode and trapped-ion mode microturbulence},
author = {T. Drouot and E. Gravier and T. Reveille and M. Sarrat and M. Collard and P. Bertrand and T. Cartier-Michaud and P. Ghendrih and Y. Sarazin and X. Garbet},
doi = {10.1063/1.4927920},
issn = {1089-7674},
year = {2015},
date = {2015-08-01},
volume = {22},
number = {8},
publisher = {AIP Publishing},
abstract = {This paper presents a reduced kinetic model, which describes simultaneously trapped-ion (TIM) and trapped-electron (TEM) driven modes. Interestingly, the model enables the study of a full f problem for ion and electron trapped particles at very low numerical cost. The linear growth rate obtained with the full f nonlinear code Trapped Element REduction in Semi Lagrangian Approach is successfully compared with analytical predictions. Moreover, nonlinear results show some basic properties of collisionless TEM and TIM turbulence in tokamaks. A competition between streamer-like structures and zonal flows is observed for TEM and TIM turbulence. Zonal flows are shown to play an important role in suppressing the nonlinear transport and strongly depend on the temperature ratio Te/Ti. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. Ghizzo; F. Palermo
Shear-flow trapped-ion-mode interaction revisited. I. Influence of low-frequency zonal flow on ion-temperature-gradient driven turbulence Article de journal
Dans: vol. 22, no. 8, 2015, ISSN: 1089-7674.
@article{Ghizzo2015,
title = {Shear-flow trapped-ion-mode interaction revisited. I. Influence of low-frequency zonal flow on ion-temperature-gradient driven turbulence},
author = {A. Ghizzo and F. Palermo},
doi = {10.1063/1.4928102},
issn = {1089-7674},
year = {2015},
date = {2015-08-01},
volume = {22},
number = {8},
publisher = {AIP Publishing},
abstract = {Collisionless trapped ion modes (CTIMs) turbulence exhibits a rich variety of zonal flow physics. The coupling of CTIMs with shear flow driven by the Kelvin-Helmholtz (KH) instability has been investigated. The work explores the parametric excitation of zonal flow modified by wave-particle interactions leading to a new type of resonant low-frequency zonal flow. The KH-CTIM interaction on zonal flow growth and its feedback on turbulence is investigated using semi-Lagrangian gyrokinetic Vlasov simulations based on a Hamiltonian reduction technique, where both fast scales (cyclotron plus bounce motions) are gyro-averaged. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. Ghizzo; F. Palermo
Shear-flow trapped-ion-mode interaction revisited. II. Intermittent transport associated with low-frequency zonal flow dynamics Article de journal
Dans: vol. 22, no. 8, 2015, ISSN: 1089-7674.
@article{Ghizzo2015b,
title = {Shear-flow trapped-ion-mode interaction revisited. II. Intermittent transport associated with low-frequency zonal flow dynamics},
author = {A. Ghizzo and F. Palermo},
doi = {10.1063/1.4928103},
issn = {1089-7674},
year = {2015},
date = {2015-08-01},
volume = {22},
number = {8},
publisher = {AIP Publishing},
abstract = {We address the mechanisms underlying low-frequency zonal flow generation in turbulent system and the associated intermittent regime of ion-temperature-gradient (ITG) turbulence. This model is in connection with the recent observation of quasi periodic zonal flow oscillation at a frequency close to 2 kHz, at the low-high transition, observed in the ASDEX Upgrade [Conway et al., Phys. Rev. Lett. 106, 065001 (2011)] and EAST tokamak [Xu et al., Phys. Rev. Lett 107, 125001 (2011)]. Turbulent bursts caused by the coupling of Kelvin-Helmholtz (KH) driven shear flows with trapped ion modes (TIMs) were investigated by means of reduced gyrokinetic simulations. It was found that ITG turbulence can be regulated by low-frequency meso-scale zonal flows driven by resonant collisionless trapped ion modes (CTIMs), through parametric-type scattering, a process in competition with the usual KH instability. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
B. Favier; A. M. Grannan; M. Le Bars; J. M. Aurnou
Generation and maintenance of bulk turbulence by libration-driven elliptical instability Article de journal
Dans: vol. 27, no. 6, 2015, ISSN: 1089-7666.
@article{Favier2015,
title = {Generation and maintenance of bulk turbulence by libration-driven elliptical instability},
author = {B. Favier and A. M. Grannan and M. Le Bars and J. M. Aurnou},
doi = {10.1063/1.4922085},
issn = {1089-7666},
year = {2015},
date = {2015-06-01},
volume = {27},
number = {6},
publisher = {AIP Publishing},
abstract = {Longitudinal libration corresponds to the periodic oscillation of a body’s rotation rate and is, along with precessional and tidal forcings, a possible source of mechanically-driven turbulence in the fluid interior of satellites and planets. In this study, we present a combination of direct numerical simulations and laboratory experiments, modeling this geophysically relevant mechanical forcing. We investigate the fluid motions inside a longitudinally librating ellipsoidal container filled with an incompressible fluid. The elliptical instability, which is a triadic resonance between two inertial modes and the oscillating base flow with elliptical streamlines, is observed both numerically and experimentally. The large-scale inertial modes eventually lead to small-scale turbulence, provided that the Ekman number is small enough. We characterize this transition to turbulence as additional triadic resonances develop while also investigating the properties of the turbulent flow that displays both intermittent and sustained regimes. These turbulent flows may play an important role in the thermal and magnetic evolution of bodies subject to mechanical forcing, which is not considered in standard models of convectively driven magnetic field generation. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. Fil; E. Nardon; M. Hoelzl; G. T. A Huijsmans; F. Orain; M. Becoulet; P. Beyer; G. Dif-Pradalier; R. Guirlet; H. R. Koslowski; M. Lehnen; J. Morales; S. Pamela; C. Passeron; C. Reux; F. Saint-Laurent;
Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET Article de journal
Dans: vol. 22, no. 6, 2015, ISSN: 1089-7674.
@article{Fil2015,
title = {Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET},
author = {A. Fil and E. Nardon and M. Hoelzl and G. T. A Huijsmans and F. Orain and M. Becoulet and P. Beyer and G. Dif-Pradalier and R. Guirlet and H. R. Koslowski and M. Lehnen and J. Morales and S. Pamela and C. Passeron and C. Reux and F. Saint-Laurent and },
doi = {10.1063/1.4922846},
issn = {1089-7674},
year = {2015},
date = {2015-06-01},
volume = {22},
number = {6},
publisher = {AIP Publishing},
abstract = {JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m/n=2/1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
F. Palermo; X. Garbet; A. Ghizzo; T. Cartier-Michaud; P. Ghendrih; V. Grandgirard; Y. Sarazin
Shear flow instabilities induced by trapped ion modes in collisionless temperature gradient turbulence Article de journal
Dans: vol. 22, no. 4, 2015, ISSN: 1089-7674.
@article{Palermo2015,
title = {Shear flow instabilities induced by trapped ion modes in collisionless temperature gradient turbulence},
author = {F. Palermo and X. Garbet and A. Ghizzo and T. Cartier-Michaud and P. Ghendrih and V. Grandgirard and Y. Sarazin},
doi = {10.1063/1.4916770},
issn = {1089-7674},
year = {2015},
date = {2015-04-01},
volume = {22},
number = {4},
publisher = {AIP Publishing},
abstract = {One important issue in turbulence self-organization is the interplay between the Kelvin–Helmholtz (KH) instability and streamers and/or zonal flows. This question has been debated for a long time. The effects of the KH instability and its position in the sequence of events between streamers, turbulence, and zonal flows have been investigated with a reduced gyro-bounce averaged kinetic code devoted to study the primary ion temperature gradient (ITG) instability linked to trapped ion modes (TIM). In toroidal geometry, the specific dynamics of TIM linked to trapped particles becomes important when the frequency of ITG modes falls below the ion bounce frequency, allowing one to average on both the cyclotron and bounce motion fast time scales. This reduction of the number of degrees of freedom leads to a strong reduction of computer resources (memory and computation time). Bounce-averaged gyrokinetic code can be considered as a toy model able to describe basic structures of turbulent transport in tokamak devices. In particular, by means of this code, we have observed that the energy injected in the system by the TIM instability is exchanged between streamers and zonal flows by means of KH vortices that grow along these structures in the nonlinear phase. The energy transfer occurs throughout the relaxation phase of the streamer growth leading to a modification of the KH modes and to the generation of the zonal flows. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. Poyé; O. Agullo; M. Muraglia; X. Garbet; S. Benkadda; A. Sen; N. Dubuit
Generation of a magnetic island by edge turbulence in tokamak plasmas Article de journal
Dans: vol. 22, no. 3, 2015, ISSN: 1089-7674.
@article{Poyé2015,
title = {Generation of a magnetic island by edge turbulence in tokamak plasmas},
author = {A. Poyé and O. Agullo and M. Muraglia and X. Garbet and S. Benkadda and A. Sen and N. Dubuit},
doi = {10.1063/1.4916580},
issn = {1089-7674},
year = {2015},
date = {2015-03-01},
volume = {22},
number = {3},
publisher = {AIP Publishing},
abstract = {We investigate, through extensive 3D magneto-hydro-dynamics numerical simulations, the nonlinear excitation of a large scale magnetic island and its dynamical properties due to the presence of small-scale turbulence. Turbulence is induced by a steep pressure gradient in the edge region [B. D. Scott, Plasma Phys. Controlled Fusion 49, S25 (2007)], close to the separatrix in tokamaks where there is an X-point magnetic configuration. We find that quasi-resonant localized interchange modes at the plasma edge can beat together and produce extended modes that transfer energy to the lowest order resonant surface in an inner stable zone and induce a seed magnetic island. The island width displays high frequency fluctuations that are associated with the fluctuating nature of the energy transfer process from the turbulence, while its mean size is controlled by the magnetic energy content of the turbulence. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Pol Mollitor; Emmanuel Nezri; Romain Teyssier
Baryonic and dark matter distribution in cosmological simulations of spiral galaxies Article de journal
Dans: vol. 447, no. 2, p. 1353–1369, 2015, ISSN: 1365-2966.
@article{Mollitor2014,
title = {Baryonic and dark matter distribution in cosmological simulations of spiral galaxies},
author = {Pol Mollitor and Emmanuel Nezri and Romain Teyssier},
doi = {10.1093/mnras/stu2466},
issn = {1365-2966},
year = {2015},
date = {2015-02-21},
volume = {447},
number = {2},
pages = {1353--1369},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Jauzac; E. Jullo; D. Eckert; H. Ebeling; J. Richard; M. Limousin; H. Atek; J.-P. Kneib; B. Clement; E. Egami; D. Harvey; K. Knowles; R. Massey; P. Natarajan; B. Neichel; M. Rexroth
Hubble Frontier Fields: the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1-2403 Article de journal
Dans: Monthly Notices of the Royal Astronomical Society, vol. 446, no. 4, p. 4132–4147, 2015, ISSN: 1365-2966.
@article{Jauzac2014,
title = {Hubble Frontier Fields: the geometry and dynamics of the massive galaxy cluster merger MACSJ0416.1-2403},
author = {M. Jauzac and E. Jullo and D. Eckert and H. Ebeling and J. Richard and M. Limousin and H. Atek and J.-P. Kneib and B. Clement and E. Egami and D. Harvey and K. Knowles and R. Massey and P. Natarajan and B. Neichel and M. Rexroth},
doi = {10.1093/mnras/stu2425},
issn = {1365-2966},
year = {2015},
date = {2015-02-01},
journal = {Monthly Notices of the Royal Astronomical Society},
volume = {446},
number = {4},
pages = {4132--4147},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
G. T. A. Huijsmans; C. S. Chang; N. Ferraro; L. Sugiyama; F. Waelbroeck; X. Q. Xu; A. Loarte; S. Futatani
Modelling of edge localised modes and edge localised mode control Article de journal
Dans: vol. 22, no. 2, 2015, ISSN: 1089-7674.
@article{Huijsmans2015,
title = {Modelling of edge localised modes and edge localised mode control},
author = {G. T. A. Huijsmans and C. S. Chang and N. Ferraro and L. Sugiyama and F. Waelbroeck and X. Q. Xu and A. Loarte and S. Futatani},
doi = {10.1063/1.4905231},
issn = {1089-7674},
year = {2015},
date = {2015-02-01},
volume = {22},
number = {2},
publisher = {AIP Publishing},
abstract = {Edge Localised Modes (ELMs) in ITER Q = 10 H-mode plasmas are likely to lead to large transient heat loads to the divertor. To avoid an ELM induced reduction of the divertor lifetime, the large ELM energy losses need to be controlled. In ITER, ELM control is foreseen using magnetic field perturbations created by in-vessel coils and the injection of small D2 pellets. ITER plasmas are characterised by low collisionality at a high density (high fraction of the Greenwald density limit). These parameters cannot simultaneously be achieved in current experiments. Therefore, the extrapolation of the ELM properties and the requirements for ELM control in ITER relies on the development of validated physics models and numerical simulations. In this paper, we describe the modelling of ELMs and ELM control methods in ITER. The aim of this paper is not a complete review on the subject of ELM and ELM control modelling but rather to describe the current status and discuss open issues. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
F. Golay; M. Ersoy; L. Yushchenko; D. Sous
Block-based adaptive mesh refinement scheme using numerical density of entropy production for three-dimensional two-fluid flows Article de journal
Dans: International Journal of Computational Fluid Dynamics, vol. 29, no. 1, p. 67–81, 2015, ISSN: 1029-0257.
@article{Golay2015,
title = {Block-based adaptive mesh refinement scheme using numerical density of entropy production for three-dimensional two-fluid flows},
author = {F. Golay and M. Ersoy and L. Yushchenko and D. Sous},
doi = {10.1080/10618562.2015.1012161},
issn = {1029-0257},
year = {2015},
date = {2015-01-02},
journal = {International Journal of Computational Fluid Dynamics},
volume = {29},
number = {1},
pages = {67--81},
publisher = {Informa UK Limited},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2014
Voicu O. Dolocan
Domain wall pinning and interaction in rough cylindrical nanowires Article de journal
Dans: vol. 105, no. 16, 2014, ISSN: 1077-3118.
@article{Dolocan2014b,
title = {Domain wall pinning and interaction in rough cylindrical nanowires},
author = {Voicu O. Dolocan},
doi = {10.1063/1.4899128},
issn = {1077-3118},
year = {2014},
date = {2014-10-20},
volume = {105},
number = {16},
publisher = {AIP Publishing},
abstract = {Interactions between pairs of magnetic domain walls (DW) and pinning by radial constrictions were studied in cylindrical nanowires with surface roughness. It was found that a radial constriction creates a symmetric pinning potential well, with a change of slope when the DW is situated outside the notch. Surface deformation induces an asymmetry in the pinning potential as well as dynamical pinning. The depinning fields of the domain walls were found generally to decrease with increasing surface roughness. A DW pinned at a radial constriction creates a pinning potential well for a free DW in a parallel wire. We determined that trapped bound DW states appear above the depinning threshold and that the surface roughness facilitates the trapped bound DW states in parallel wires. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Johan Richard; Mathilde Jauzac; Marceau Limousin; Eric Jullo; Benjamin Clément; Harald Ebeling; Jean-Paul Kneib; Hakim Atek; Priya Natarajan; Eiichi Egami; Rachael Livermore; Richard Bower
Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies Article de journal
Dans: vol. 444, no. 1, p. 268–289, 2014, ISSN: 1365-2966.
@article{Richard2014,
title = {Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies},
author = {Johan Richard and Mathilde Jauzac and Marceau Limousin and Eric Jullo and Benjamin Clément and Harald Ebeling and Jean-Paul Kneib and Hakim Atek and Priya Natarajan and Eiichi Egami and Rachael Livermore and Richard Bower},
doi = {10.1093/mnras/stu1395},
issn = {1365-2966},
year = {2014},
date = {2014-10-11},
volume = {444},
number = {1},
pages = {268--289},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sébastien Poncet; Stéphane Viazzo; Romain Oguic
Large eddy simulations of Taylor-Couette-Poiseuille flows in a narrow-gap system Article de journal
Dans: vol. 26, no. 10, 2014, ISSN: 1089-7666.
@article{Poncet2014,
title = {Large eddy simulations of Taylor-Couette-Poiseuille flows in a narrow-gap system},
author = {Sébastien Poncet and Stéphane Viazzo and Romain Oguic},
doi = {10.1063/1.4899196},
issn = {1089-7666},
year = {2014},
date = {2014-10-01},
volume = {26},
number = {10},
publisher = {AIP Publishing},
abstract = {The present paper concerns Large-Eddy Simulations (LES) of turbulent Taylor-Couette-Poiseuille flows in a narrow-gap cavity for six different combinations of rotational and axial Reynolds numbers. The in-house numerical code has been first validated in a middle-gap cavity. Two sets of refined LES results, using the Wall-Adapting Local Eddy Viscosity (WALE) and the Dynamic Smagorinsky subgrid-scale models available within an in-house code based on high-order compact schemes, have been then compared with no noticeable difference on the mean flow field and the turbulent statistics. The WALE model enabling a saving of about 12% of computational effort has been finally used to investigate the influence on the hydrodynamics of the swirl parameter N within the range [1.49 − 6.71]. The swirl parameter N, which compares the effects of rotation of the inner cylinder and the axial flowrate, does not influence significantly the mean velocity profiles. Turbulence intensities are enhanced with increasing values of N with remarkably high peak values within the boundary layers. The inner rotating cylinder has a destabilizing effect inducing asymmetric profiles of the Reynolds stress tensor components. The rotor and stator boundary layers exhibit the main characteristics of two-dimensional boundary layers. Turbulence is also mainly at two-component there. Thin coherent structures appearing as negative (resp. positive) spiral rolls are observed along the rotor (resp. stator) side. Their inclination angle depends strongly on the value of the swirl parameter, which fixes the intensity of the crossflow. On the other hand, the intensity and the size of the coherent structures observed within the boundary layers are governed by the effective Reynolds number. For its highest value, they penetrate the whole gap. Finally, the results have been extended to the non-isothermal case in the forced convection regime. A correlation for the Nusselt number along the rotor has been provided showing a much larger dependence on the axial Reynolds number than expected from previous published works, while it depends classically on the Taylor number to the power 0.145 and on the Prandtl number to the power 0.3. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Jauzac; B. Clément; M. Limousin; J. Richard; E. Jullo; H. Ebeling; H. Atek; J.-P. Kneib; K. Knowles; P. Natarajan; D. Eckert; E. Egami; R. Massey; M. Rexroth
Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images Article de journal
Dans: vol. 443, no. 2, p. 1549–1554, 2014, ISSN: 1365-2966.
@article{Jauzac2014b,
title = {Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images},
author = {M. Jauzac and B. Clément and M. Limousin and J. Richard and E. Jullo and H. Ebeling and H. Atek and J.-P. Kneib and K. Knowles and P. Natarajan and D. Eckert and E. Egami and R. Massey and M. Rexroth},
doi = {10.1093/mnras/stu1355},
issn = {1365-2966},
year = {2014},
date = {2014-09-11},
volume = {443},
number = {2},
pages = {1549--1554},
publisher = {Oxford University Press (OUP)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Samer Gozem; Federico Melaccio; Alessio Valentini; Michael Filatov; Miquel Huix-Rotllant; Nicolas Ferré; Luis Manuel Frutos; Celestino Angeli; Anna I. Krylov; Alexander A. Granovsky; Roland Lindh; Massimo Olivucci
Shape of Multireference, Equation-of-Motion Coupled-Cluster, and Density Functional Theory Potential Energy Surfaces at a Conical Intersection Article de journal
Dans: J. Chem. Theory Comput., vol. 10, no. 8, p. 3074–3084, 2014, ISSN: 1549-9626.
@article{Gozem2014,
title = {Shape of Multireference, Equation-of-Motion Coupled-Cluster, and Density Functional Theory Potential Energy Surfaces at a Conical Intersection},
author = {Samer Gozem and Federico Melaccio and Alessio Valentini and Michael Filatov and Miquel Huix-Rotllant and Nicolas Ferré and Luis Manuel Frutos and Celestino Angeli and Anna I. Krylov and Alexander A. Granovsky and Roland Lindh and Massimo Olivucci},
doi = {10.1021/ct500154k},
issn = {1549-9626},
year = {2014},
date = {2014-08-12},
journal = {J. Chem. Theory Comput.},
volume = {10},
number = {8},
pages = {3074--3084},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Dominique Morvan
Wind Effects, Unsteady Behaviors, and Regimes of Propagation of Surface Fires in Open Field Article de journal
Dans: Combustion Science and Technology, vol. 186, no. 7, p. 869–888, 2014, ISSN: 1563-521X.
@article{Morvan2014,
title = {Wind Effects, Unsteady Behaviors, and Regimes of Propagation of Surface Fires in Open Field},
author = {Dominique Morvan},
doi = {10.1080/00102202.2014.885961},
issn = {1563-521X},
year = {2014},
date = {2014-07-03},
journal = {Combustion Science and Technology},
volume = {186},
number = {7},
pages = {869--888},
publisher = {Informa UK Limited},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miquel Huix-Rotllant; Nicolas Ferré
Theoretical Study of the Photochemical Initiation in Nitroxide-Mediated Photopolymerization Article de journal
Dans: J. Phys. Chem. A, vol. 118, no. 25, p. 4464–4470, 2014, ISSN: 1520-5215.
@article{Huix-Rotllant2014,
title = {Theoretical Study of the Photochemical Initiation in Nitroxide-Mediated Photopolymerization},
author = {Miquel Huix-Rotllant and Nicolas Ferré},
doi = {10.1021/jp501773n},
issn = {1520-5215},
year = {2014},
date = {2014-06-26},
journal = {J. Phys. Chem. A},
volume = {118},
number = {25},
pages = {4464--4470},
publisher = {American Chemical Society (ACS)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Patrick Maget; Hinrich Lütjens; Jean-François Luciani; Xavier Garbet; Olivier Février; Jean-Luc Ségui
Bi-fluid and neoclassical effect on a Double-Tearing mode in Tore Supra Article de journal
Dans: vol. 21, no. 6, 2014, ISSN: 1089-7674.
@article{Maget2014,
title = {Bi-fluid and neoclassical effect on a Double-Tearing mode in Tore Supra},
author = {Patrick Maget and Hinrich Lütjens and Jean-François Luciani and Xavier Garbet and Olivier Février and Jean-Luc Ségui},
doi = {10.1063/1.4882259},
issn = {1089-7674},
year = {2014},
date = {2014-06-01},
volume = {21},
number = {6},
publisher = {AIP Publishing},
abstract = {Tearing modes associated to hollow current profiles are prone to grow in moderate performance plasmas and often constrain the realization of non-inductive discharges in the Tore Supra tokamak, where long pulse duration is performed using Lower Hybrid waves for providing most of the plasma current. The prediction of MHD boundaries in such scenarios is complicated by the importance of diamagnetic effects, combined with curvature stabilization, which determine the stability of these modes. We show that diamagnetic effects, as well as neoclassical forces, are playing a key role in the linear and nonlinear regimes of Double-Tearing Modes on q = 5/3 and q = 2 in these experimental conditions. Detailed comparison with experimental measurements, combined with a scaling in plasma resistivity, give constraints about the experimental equilibrium. Resistive-Interchange Modes destabilized by diamagnetic rotation could also play a role in degrading the energy confinement in the negative magnetic shear region. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Miquel Huix-Rotllant; Nicolas Ferré
Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density-functional theory Article de journal
Dans: vol. 140, no. 13, 2014, ISSN: 1089-7690.
@article{Huix-Rotllant2014b,
title = {Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density-functional theory},
author = {Miquel Huix-Rotllant and Nicolas Ferré},
doi = {10.1063/1.4869802},
issn = {1089-7690},
year = {2014},
date = {2014-04-07},
volume = {140},
number = {13},
publisher = {AIP Publishing},
abstract = {Even though time-dependent density-functional theory (TDDFT) works generally well for describing excited states energies and properties in the Franck-Condon region, it can dramatically fail in predicting photochemistry, notably when electronic state crossings occur. Here, we assess the ability of TDDFT to describe the photochemistry of an important class of triplet sensitizers, namely, aromatic ketones. We take acetophenone as a test molecule, for which accurate ab initio results exist in the literature. Triplet acetophenone is generated thanks to an exotic three-state crossing involving one singlet and two triplets states (i.e., a simultaneous intersystem crossing and triplet conical intersection), thus being a stringent test for approximate TDDFT. We show that most exchange-correlation functionals can only give a semi-qualitative picture of the overall photochemistry, in which the three-state crossing is rather represented as a triplet conical intersection separated from the intersystem crossing. The best result overall is given by the double hybrid functional mPW2PLYP, which is even able to reproduce quantitatively the three-state crossing region. We rationalize this results by noting that double hybrid functionals include a larger portion of double excitation character to the excited states. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
G. Boedec; M. Jaeger; M. Leonetti
Pearling instability of a cylindrical vesicle Article de journal
Dans: J. Fluid Mech., vol. 743, p. 262–279, 2014, ISSN: 1469-7645.
@article{Boedec2014,
title = {Pearling instability of a cylindrical vesicle},
author = {G. Boedec and M. Jaeger and M. Leonetti},
doi = {10.1017/jfm.2014.34},
issn = {1469-7645},
year = {2014},
date = {2014-03-04},
journal = {J. Fluid Mech.},
volume = {743},
pages = {262--279},
publisher = {Cambridge University Press (CUP)},
abstract = {Abstract A cylindrical vesicle under tension can undergo a pearling instability, characterized by the growth of a sinusoidal perturbation which evolves towards a collection of quasi-spherical bulbs connected by thin tethers, like pearls on a necklace. This is reminiscent of the well-known Rayleigh–Plateau instability, where surface tension drives the amplification of sinusoidal perturbations of a cylinder of fluid. We calculate the growth rate of perturbations for a cylindrical vesicle under tension, considering the effect of both inner and outer fluids, with different viscosities. We show that this situation differs strongly from the classical Rayleigh–Plateau case in the sense that, first, the tension must be above a critical value for the instability to develop and, second, even in the strong tension limit, the surface preservation constraint imposed by the presence of the membrane leads to a different asymptotic behaviour. The results differ from previous studies on pearling due to the consideration of variations of tension, which are shown to enhance the pearling instability growth rate, and lower the wavenumber of the fastest growing mode. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
2013
Irina Graur; Minh Tuan Ho; Martin Wuest
Simulation of the transient heat transfer between two coaxial cylinders Article de journal
Dans: vol. 31, no. 6, 2013, ISSN: 1520-8559.
@article{Graur2013,
title = {Simulation of the transient heat transfer between two coaxial cylinders},
author = {Irina Graur and Minh Tuan Ho and Martin Wuest},
doi = {10.1116/1.4818870},
issn = {1520-8559},
year = {2013},
date = {2013-11-01},
volume = {31},
number = {6},
publisher = {American Vacuum Society},
abstract = {The transient heat flux between two coaxial cylinders is studied on the basis of the numerical solution of the nonlinear unsteady S-model kinetic equation. A large range of the gas rarefaction and two temperature ratios between the cylinders' walls are considered. The time evolutions of the averaged over the distance between the cylinders heat flux, pressure, and bulk velocity are analyzed. The steady state time, as a time of steady state flow establishment, is introduced. This time depends on the characteristic time of the system and on the gas rarefaction. It is found that this steady state time for the averaged heat flux varies approximately 18 times from the near free molecular to the hydrodynamic flow regime. In the slip flow regime, the analytical expression for the steady state temperature distribution between two cylinders is obtained. It is found that the transient heat flux evolution derived from the energy balance allows to estimate the time of steady state flow establishment in the slip flow regime. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Patrick Maget; Nicolas Mellet; Hinrich Lütjens; Dmytro Meshcheriakov; Xavier Garbet
Curvature effect on tearing modes in presence of neoclassical friction Article de journal
Dans: vol. 20, no. 11, 2013, ISSN: 1089-7674.
@article{Maget2013,
title = {Curvature effect on tearing modes in presence of neoclassical friction},
author = {Patrick Maget and Nicolas Mellet and Hinrich Lütjens and Dmytro Meshcheriakov and Xavier Garbet},
doi = {10.1063/1.4829038},
issn = {1089-7674},
year = {2013},
date = {2013-11-01},
volume = {20},
number = {11},
publisher = {AIP Publishing},
abstract = {Neoclassical physics (here associated to the poloidal variation of the magnetic field strength along field lines in a tokamak) is well known for driving self-generated plasma current and nonlinear magnetic islands associated to it in high performance, ITER relevant plasma discharges. It is demonstrated that the neoclassical friction between a magnetic perturbation and plasma flow already impacts magnetic islands in the linear regime, by inducing a weakening of curvature stabilization for tearing modes. This conclusion holds in particular for regimes where convection is influencing the pressure dynamics, as shown using a simple analytical model and confirmed in full Magneto-Hydro-Dynamics simulations. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Mehmet Ersoy; Frédéric Golay; Lyudmyla Yushchenko
Adaptive multiscale scheme based on numerical density of entropy production for conservation laws Article de journal
Dans: vol. 11, no. 8, 2013, ISSN: 2391-5455.
@article{Ersoy2013,
title = {Adaptive multiscale scheme based on numerical density of entropy production for conservation laws},
author = {Mehmet Ersoy and Frédéric Golay and Lyudmyla Yushchenko},
doi = {10.2478/s11533-013-0252-6},
issn = {2391-5455},
year = {2013},
date = {2013-01-01},
volume = {11},
number = {8},
publisher = {Walter de Gruyter GmbH},
abstract = {Abstract We propose a 1D adaptive numerical scheme for hyperbolic conservation laws based on the numerical density of entropy production (the amount of violation of the theoretical entropy inequality). This density is used as an a posteriori error which provides information if the mesh should be refined in the regions where discontinuities occur or coarsened in the regions where the solution remains smooth. As due to the Courant-Friedrich-Levy stability condition the time step is restricted and leads to time consuming simulations, we propose a local time stepping algorithm. We also use high order time extensions applying the Adams-Bashforth time integration technique as well as the second order linear reconstruction in space. We numerically investigate the efficiency of the scheme through several test cases: Sod’s shock tube problem, Lax’s shock tube problem and the Shu-Osher test problem. },
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Last updated : 3 septembre 2025