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Faithful geometric measures for genuine tripartite entanglement

Physical Review A 2024年第1期110卷 L010402-L010402页

作者： Xiaozhen Ge Lijun Liu Yong Wang Yu Xiang Guofeng Zhang Li Li Shuming Cheng Department of Control Science and Engineering Department of Applied Mathematics The Department of Mathematics and Computer Science State Key Laboratory for Mesoscopic Physics School of Physics Frontiers Science Center for Nano-optoelectronics and Collaborative Innovation Center of Quantum Matter Shanghai Institute of Intelligent Science and Technology Institute for Advanced Study

We present a faithful geometric picture for genuine tripartite entanglement of discrete, continuous, and hybrid quantum systems. We first find that the triangle relation Ei|jkα≤Ej|ikα+Ek|ijα holds for all subadditive bipartite entanglement measure E, all permutations under parties i,j,k, all α∈[0,1], and all pure tripartite states. Then, we rigorously prove that the nonobtuse triangle area, enclosed by side Eα with 0<α≤1/2, is a measure for genuine tripartite entanglement. Finally, it is significantly strengthened for qubits that given a set of subadditive and nonsubadditive measures, some state is always found to violate the triangle relation for any α>1, and the triangle area is not a measure for any α>1/2. Our results pave the way to study discrete and continuous multipartite entanglement within a unified framework.

关键词： Entanglement measures Quantum correlations in quantum information Quantum correlations, foundations & formalism Resource theories

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Guidelines for dopant selection in Cu catalysts to promote the electrochemical CO2 reduction reaction for ethylene production

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Journal of Energy Chemistry 2025年第4期103卷 674-681页

作者： Dogyeong Kim Seohyeon Ka Man Ho Han Woong Kim Seung-Ho Yu Jae-Young Choi Keun Hwa Chae Hyung-Suk Oh Woong Hee Lee Clean Energy Research Center Korea Institute of Science and Technology (KIST) Department of Chemical and Biological Engineering Korea University Department of Materials Science and Engineering Korea University School of Advanced Materials Science and Engineering Sungkyunkwan University KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University Analysis &Data Center Korea Institute of Science and Technology Division of Energy and Environmental Technology KIST School Korea University of Science and Technology (UST)

To develop an efficient electrochemical CO2reduction reaction（CO2RR） for the production of C2chemicals,improvements in the Cu catalyst are *** is widely used for catalyst enhancement;however,only a few elements have been *** study proposes guidelines for the selection of Cu catalyst dopants to promote ethylene *** was hypothesized that the dopant chemical state highly influences the CO2RR catalytic *** the case of dopants possessing a standard reduction potential within the CO2RR potential region（e.g.,Mn and Ni）,low Faradaic efficiency（FE） toward ethylene production was obtained owing to the presence of a metallic dopant（10.7% for Ni dopant）.In contrast,a low standard reduction potential led to a stable high oxidation state for the dopant,yielding abundant Cuδ+species with modified electronic structures and enhancing the CO2RR catalytic activity for ethylene production（42.1% for Hf dopant）.We expected that a dopant with a low standard reduction potential is difficult to reduce,which leads to a stable Cu-O-X bond and induces a stable Cuδ+*** study provides insights into how to select dopant for various catalyst to enhance CO2RR catalytic activity.

关键词： CO 2 reduction reaction Catalytic selectivity Dopant Cu species Ethylene production

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Unveiling the homogenization microstructure evolution and its effect on cellular structure for Fe-rich Sm-Co-Fe-Cu-Zr magnets

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Journal of Materials science & Technology 2024年第27期194卷 142-150页

作者： Qiangfeng Li Chao Wang Lei Wang Yifei Bi Yikun Fang Yue Zhang Minggang Zhu Wei Li Division of Functional Materials Central Iron and Steel Research InstituteBeijing 100081China Academy for Advanced Interdisciplinary Science and Technology Beijing Advanced Innovation Center for Materials Genome Engineering and Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

The solution-treated Fe-rich 2:17-type Sm-Co-based magnets generally contain an inhomogeneous mi-crostructure,which hinders the development of the complete cellular structure required for high-performance ***,the microstructure evolution of Sm(Cobal Fe_(0.31)Cu_(0.07)Zr_(0.025))_(7.7)magnet during the solution treatment is systematically *** the normal Fe-medium magnets,it was in-terestingly found that the initial-stage solution-treated Sm(Cobal Fe_(0.31)Cu_(0.07)Zr_(0.025))_(7.7)magnet possesses a profuse lamellar-type *** the lamellar-type microstructure,there are three microre-gions exhibiting an obvious difference in composition and 2:17R ordering ***,various 1:3R phases precipitated within the lamellar-type *** the disappearance of lamellar-type mi-crostructure,the 1:7H phase increased substantially,and the distribution of defect-aggregated cell bound-aries became uniform,promoting the homogeneous precipitation of 1:5H cell boundary phases during *** current study reveals a typical microstructural evolution in Fe-rich 2:17-type Sm-Co-based magnets during solution treatment.

关键词： Sm_(2)Co_(17)magnet Supersaturated solid solution Phase transformation TEM

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Temperature/stress dependence of stress rupture behavior and deformation microstructure of an advanced superalloy for additive manufacturing

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材料科学技术（英文版） 2025年第3期206卷 37-52页

作者： Wei Song Junying Yang Jingjing Liang Nannan Lu Yizhou Zhou Xiaofeng Sun Jinguo Li Shi-Changxu Innovation Center for Advanced Materials Superalloys DivisionInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Shi-Changxu Innovation Center for Advanced Materials Superalloys DivisionInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China

A self-developed crack-free advanced superalloy ZGH451 fabricated by direct energy deposition(DED)was applied to investigate the microstructure evolution,stress rupture behavior,and deformation mech-anisms at moderate-high temperatures and high-low stress *** high Ta/Al ratio induces large misfit lattice stress and low stacking fault energy of alloy,resulting in approximate cubic γ'phases in dendrites and the formation of initial dislocation *** the stress rupture test at 760 ℃/780 MPa,high content cubic γ'phases,small size of voids as well as preserved dislocation tangles are observed,showing stable structures with high-stress rupture *** content and suitable size of cubicγ'phases,initial dislocation tangles,and L-C locks hinder the dislocation motion,which decreases the minimum strain rate and prolongs life significantly,forming four stress rupture ***,the defor-mation mechanism is determined by dislocation piled-up on γ/γ'interface,formation of stacking faults in γ'phases,and dislocations shearing γ'***,the microstructure exhibits uneven struc-tures composed of large sizes of rafted γ'phases and voids at 980 ℃/260 *** rafted structure and high temperature provide continuous channels and enough energy for dislocation motion,resulting in the increase of minimum strain rate,decline of life,and typic three stress rupture stages,even though there are obstacles to dislocation movement caused by dislocation *** deformation mecha-nism transforms to form dislocation networks on γ/γ'interface and dislocations shearing γ'***-sides,the decomposition of carbides on GBs also depends on temperature,which decomposes into harm-ful chain-like M23C6 carbides at moderate temperatures and reinforced granular-shaped M6C carbides at high *** applied stress always decreases mechanical properties due to its degradation of microstructure induced by elongating the precipitates and defects.

关键词： Additive manufacturing Nickel-based superalloys Stress rupture behavior Microstructure evolution Deformation mechanisms

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Dry basal plane graphene wrappings on spherical nickel-rich oxide layered particles for lithium-ion batteries

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Journal of Energy Chemistry 2025年第5期104卷 10-19页

作者： Van-Chuong Ho Thanh N.Huynh Thi Huong Pham Hyun-seung Kim Hun-Gi Jung Ki Jae Kim Seung-Min Oh Young-Jun Kim Junyoung Mun School of Advanced Materials Science and Engineering Sungkyunkwan University SKKU Advanced Institute of Nano Technology (SAINT) Sungkyunkwan University Advanced Batteries Research Center Korea Electronics Technology Institute Energy Storage Research Center Korea Institute of Science and Technology KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University Department of Energy Science Sungkyunkwan University SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University Battery Cell Development Team 1 Research & Development Division Hyundai Motor Company Department of Nano Engineering Sungkyunkwan University

Particle-to-particle dry graphene coatings on Ni-rich layered oxide materials are proposed for highenergy lithium-ion batteries （LIBs） to mitigate the inherent and engineering challenges related to the electrochemically fragile surfaces,as well as limiting electrode thickness and *** a shear stress-based coating process without supplementary solvent or heat treatment,graphene sheets derived from graphene powder are applied onto the surface of spherical LiNi0.89Co0.055Mn0.055O2（NCM） *** process achieves a coating thickness equivalent to or fewer than 10 layers of graphene and exposes the basal *** graphene-coated material increases particle hardness and mitigates degradation caused by inter-particle pressure,enabling the formation of high-density electrodes without *** the absence of additional carbon-conducting agents for the high-density composite electrode with a density of 4.0 g cm-3,it significantly enhances rate capability,demonstrating more than 5 times improvement by achieving 149.4 mAh g-1at 2 C compared to the bare sample (28.9 mAh g-1).Furthermore,the dry graphene coating enables the high areal capacity of 6.98 mAh *** exposing the basal plane of the graphene coating,the process enhances chemical stability,effectively inhibiting side reactions at the interface and mitigating cycle degradation.

关键词： Basal-plane coating Dry graphene coating High areal capacity High electrical conductivity Particle-to-particle

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Unravelling precipitation behavior and mechanical properties of Al-Zn-Mg-Cu alloy

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材料科学技术（英文版） 2025年第1期204卷 177-189页

作者： Sang-Hwa Lee Tae-Young Ahn Sung-Il Baik David N.Seidman Seok-Jae Lee Young-Kook Lee Kwangjun Euh Jae-Gil Jung Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju54896Republic of Korea Advanced Metals Division Korea Institute of Materials ScienceChangwon51508Republic of Korea Department of Materials Science and Engineering Yonsei UniversitySeoul03722Republic of Korea Materials Safety Research Division Korea Atomic Energy Research InstituteDaejeon34057Republic of Korea Department of Materials Science and Engineering Northwestern UniversityEvanstonIL60208USA Northwestern University Center for Atom-probe Tomography EvanstonIL60208USA Division of Advanced Materials Engineering Jeonbuk National UniversityJeonju54896Republic of Korea Research Center for Advanced Materials Development Jeonbuk National UniversityJeonju54896Republic of Korea Department of Materials Science and Engineering Yonsei UniversitySeoul03722Republic of Korea Graduate Institute of Ferrous & Eco Materials Technology Pohang University of Science and TechnologyPohang37673Republic of Korea Advanced Metals Division Korea Institute of Materials ScienceChangwon51508Republic of Korea

We investigate the effect of aging temperature on precipitation behavior and mechanical properties of an Al-7.6Zn-2.7Mg-2.0Cu-0.1Zr-0.07Ti(wt.％)alloy by evaluating the matrix's microhardness,electrical resistivity,and tensile properties:additionally,employing X-ray diffraction(XRD),differential scanning calorimetry(DSC),transmission electron microscopy(TEM),and atom-probe tomography(APT)to charac-terize this *** nanoprecipitates forming under peak-aging conditions vary with aging temperature,forming coherent GPI zones at 80 ℃,GPII zones with minor η'at 120-150 ℃,and η'/η with minor GP zones at 180-220 ℃.GPI and GPII zones forming at 80-150 ℃ contain similar concentrations of solute atoms(11Zn-9Mg-(＜1.0)Cu(at.％)),whereas the η'/η nanoprecipitates forming at 180 ℃ contain larger concentrations of solute atoms(28Zn-24Mg-3.4Cu(at.％)).The strength of the peak-aged alloy decreases with increasing aging temperature owing to the increasing size and decreasing number density of the *** peak-aging conditions,precipitation strengthening originates mainly from dislo-cation shearing at 80-150 ℃ and from Orowan bypassing at temperatures above 180 ℃.The shearable to non-shearable transition of the nanoprecipitates at 180 ℃ reduces the strain hardening rate,thereby decreasing the alloy's ductility.

关键词： Aluminum alloys Precipitation Tensile properties Transmission electron microscopy Atom probe tomography

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On Error-Based Step Size Control for Discontinuous Galerkin Methods for Compressible Fluid Dynamics

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应用数学与计算数学学报 2025年第1期7卷 3-39页

作者： Hendrik Ranocha Andrew R.Winters Hugo Guillermo Castro Lisandro Dalcin Michael Schlottke-Lakemper Gregor J.Gassner Matteo Parsani Applied Mathematics University of HamburgBundesstr.5520146 HamburgGermany Department of Mathematics Applied Mathematics Linköping UniversityLinköpingSweden Extreme Computing Research Center(ECRC) Computer Electrical and Mathematical Science and Engineering Division(CEMSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia Applied and Computational Mathematics RWTH Aachen UniversityAachenGermany High-Performance Computing Center Stuttgart University of StuttgartStuttgartGermany Department of Mathematics and Computer Science University of CologneCologneGermany Center for Data and Simulation Science University of CologneCologneGermany Extreme Computing Research Center(ECRC) Computer Electrical and Mathematical Science and Engineering Division(CEMSE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia Physical Science and Engineering Division(PSE) King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

We study a temporal step size control of explicit Runge-Kutta(RK)methods for com-pressible computational fluid dynamics(CFD),including the Navier-Stokes equations and hyperbolic systems of conservation laws such as the Euler *** demonstrate that error-based approaches are convenient in a wide range of applications and compare them to more classical step size control based on a Courant-Friedrichs-Lewy(CFL)*** numerical examples show that the error-based step size control is easy to use,robust,and efficient,e.g.,for(initial)transient periods,complex geometries,nonlinear shock captur-ing approaches,and schemes that use nonlinear entropy *** demonstrate these properties for problems ranging from well-understood academic test cases to industrially relevant large-scale computations with two disjoint code bases,the open source Julia pack-ages *** with *** and the C/Fortran code SSDC based on PETSc.

关键词： Explicit Runge-Kutta(RK)methods Step size control Compressible fluid dynamics Adaptivity in space and time Shock capturing

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Enhanced MADM Strategy with Heptapartitioned Neutrosophic Distance Metrics

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Neutrosophic Sets and Systems 2025年 78卷 74-96页

作者： Eassa, Mohamed Myvizhi, M. Elkholy, Mohamed Abdelhafeez, Ahmed Elbehiery, Hussam Computer Science Department Faculty of Information System and Computer Science October 6 University Giza12585 Egypt Applied Science Research Center Applied Science Private University Amman Jordan Department of Mathematics KPR Institute of Engineering and Technology Tamilnadu Coimbatore India Faculty of Computer Science& Engineering Alamein International University Egypt

In this work, a novel methodological approach to multi-attribute decision-making problems is developed and the notion of Heptapartitioned Neutrosophic Set Distance Measures (HNSDM) is introduced. By averaging the Penta-Partitioned Neutrosophic Distance Measures under particular conditional criteria, the suggested technique ranks the options. Additionally, we explore the fundamental characteristics of HNSDM and provide several illustrative theorems. The Heptapartitioned Neutrosophic Set Distance Measures are formulated based on the Hepta Neutrosophic Set. Lastly, a practical numerical example is provided to illustrate the efficacy of the suggested methodology. © 2025, University of New Mexico. All rights reserved.

关键词： Heptapartitioned Neutrosophic set Heptapartitioned Neutrosophic set and MADM strategy Heptapartitioned set Neutrosophic sine distance measure

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Towards intelligent and trustworthy task assignments for 5G-enabled industrial communication systems

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Digital Communications and Networks 2025年第1期11卷 246-255页

作者： Mingfeng Huang Anfeng Liu Neal N.Xiong Athanasios V.Vasilakos School of Computer and Communication Engineering Changsha University of Science&TechnologyChangsha410114China School of Electronic Information Central South UniversityChangsha410083China Department of Computer Science and Mathematics Sul Ross State UniversityAlpineTX 79830USA College of Mathematics and Computer Science Fuzhou UniversityFuzhou350116China Center for AI Research University of AgderGrimstad 999026Norway

With the unprecedented prevalence of Industrial Internet of Things(IIoT)and 5G technology,various applications supported by industrial communication systems have generated exponentially increased processing tasks,which makes task assignment inefficient due to insufficient *** this paper,an Intelligent and Trustworthy task assignment method based on Trust and Social relations(ITTS)is proposed for scenarios with many tasks and few ***,ITTS first makes initial assignments based on trust and social influences,thereby transforming the complex large-scale industrial task assignment of the platform into the small-scale task assignment for each ***,an intelligent Q-decision mechanism based on workers'social relation is proposed,which adopts the first-exploration-then-utilization principle to allocate *** when a worker cannot cope with the assigned tasks,it initiates dynamic worker recruitment,thus effectively solving the worker shortage problem as well as the cold start *** importantly,we consider trust and security issues,and evaluate the trust and social circles of workers by accumulating task feedback,to provide the platform a reference for worker recruitment,thereby creating a high-quality worker ***,extensive simulations demonstrate ITTS outperforms two benchmark methods by increasing task completion rates by 56.49%-61.53%and profit by 42.34%-47.19%.

关键词： Industrial Internet of Things Insufficient workers Trust evaluation Social relation Task assignment

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Thin film chalcogenides and optical design for mid-infrared sensing applications

Thin film chalcogenides and optical design for mid-infrared ...

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CLEO: science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： El-Kholy, Ibrahim Al-Alexis Khan, Amir Division of Physics Engineering Mathematics and Computer Science Optical Science Center for Applied Research Delaware State University DoverDE United States

ISBN: (纸本)9781957171395

Constituent elements of Ge-Se-S glasses were chosen with different compositions such as Ge2Se8, Ge2S8, Se2S8, and GeSe2S2 to study their optical properties for UV, visible, and Mid-IR range using different optical tools like UV-Vis, FTIR, and Raman spectroscopy for mid-infrared thin film applications. © Optica Publishing Group 2024

关键词： Fourier transform infrared spectroscopy

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