Results 11 to 20 of about 366,004 (264)

Matching crystal structures atom-to-atom [PDF]

open access: yesThe Journal of Chemical Physics, 2020
Finding an optimal match between two different crystal structures underpins many important materials science problems, including describing solid-solid phase transitions and developing models for interface and grain boundary structures. In this work, we formulate the matching of crystals as an optimization problem where the goal is to find the ...
Félix Therrien   +2 more
openaire   +3 more sources

Incompleteness of Atomic Structure Representations [PDF]

open access: yesPhysical Review Letters, 2020
Many-body descriptors are widely used to represent atomic environments in the construction of machine-learned interatomic potentials and more broadly for fitting, classification, and embedding tasks on atomic structures. There is a widespread belief in the community that three-body correlations are likely to provide an overcomplete description of the ...
Sergey N. Pozdnyakov   +5 more
openaire   +5 more sources

Studying exotic hadrons in high energy nuclear collisions [PDF]

open access: yesEPJ Web of Conferences
Studies of exotic hadrons such as the χc1 (3872) state provide crucial insights into the fundamental force governing the strong interaction dynamics, with an emerging new frontier to investigate their production in high energy nuclear collisions where a ...
Guo Xingyu, Liao Jinfeng, Xing Hongxi
doaj   +1 more source

Ab Initio Molecular Dynamics Study of the Structure and Properties of Nb-Doped Zr-Cu-Al Amorphous Alloys

open access: yesMetals, 2021
In this paper, experiments were carried out on (Zr0.5Cu0.4Al0.1)100-xNbx (x = 0, 3, 6 at.%) amorphous alloys, and the corresponding ab initio molecular dynamics simulation was performed.
Hongqing Wei, Ping Zhang, Yi Tang
doaj   +1 more source

Molecular Basis of Water Activity in Glycerol–Water Mixtures

open access: yesFrontiers in Chemistry, 2019
Water activity (Aw) is a reliable indication of the microbial growth, enzymatic activity, preservation, and quality of foods. However, a molecular basis of Aw is still under debate in multiple related disciplines.
Hiroshi Nakagawa, Taiji Oyama
doaj   +1 more source

J/ψ production within a jet in high-energy proton-proton and nucleus-nucleus collisions [PDF]

open access: yesEPJ Web of Conferences
We report a systematic study of J/ψ production within a jet in pp and its modification in heavy-ion collisions. Within the framework of leading power factorization formalism of nonrelativistic QCD, we calculate the jet fragmentation function for high-pT ...
Zhang Shan-Liang, Xing Hongxi
doaj   +1 more source

Non-hardening embrittlement mechanism of pressure vessel steel Ni-Cr-Mo-V welds during thermal aging

open access: yesAdvances in Mechanical Engineering, 2020
The mechanical performance of reactor pressure vessel materials is an important factor in the safety and economics of the operation of a nuclear power plant.
Guojun Wei   +4 more
doaj   +1 more source

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