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FIRST-ORDER: 作品数：248被引量：336H指数：7; 导出分析报告; 相关领域：理学更多>>; 相关作者：阮文权徐富任洪艳赵明星缪恒锋更多>>; 相关机构：江南大学湖南工业大学山东大学（威海）东南大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金国家高技术研究发展计划更多>>

Adapted Runge-Kutta Methods for Nonlinear First-Order Delay BVPs with Time-variable Delay: 《Acta Mathematicae Applicatae Sinica》2025年第2期400-413,共14页Cheng-jian ZHANG Yang WANG Hao HAN; supported by the National Natural Science Foundation of China(Grant No.12471379).; This paper deals with numerical solutions for nonlinear first-order boundary value problems(BVPs)with time-variable delay.For solving this kind of delay BVPs,by combining Runge-Kutta methods with Lagrange interpolatio...; 关键词：delay boundary value problems adapted Runge-Kutta method Lagrange interpolation error analysis global stability

BRAKE ORBITS WITH MINIMAL PERIOD ESTIMATES OF FIRST-ORDER ANISOTROPIC HAMILTONIAN SYSTEMS: 《Acta Mathematica Scientia》2025年第2期347-362,共16页Xiaofei ZHANG Chungen LIU; supported by the NSFC(12301138);the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(2021L377);the Doctoral Scientific Research Foundation of Shanxi Datong University(2018-B-15);The second author’s work was supported by the NSFC(12171108).; In this paper,the problem of brake orbits with minimal period estimates are considered for the first-order Hamiltonian systems with anisotropic growth,i.e.,the Hamiltonian functions may have super-quadratic,sub-quadra...; 关键词：Hamiltonian system anisotropic growth brake orbit Lo-index

Robust quantum gate optimization with first-order derivatives of ion–phonon and ion–ion couplings in trapped ions: 《Chinese Physics B》2025年第4期287-294,共8页Jing-Bo Wang; Trapped ion hardware has made significant progress recently and is now one of the leading platforms for quantum computing.To construct two-qubit gates in trapped ions,experimentalmanipulation approaches for ion chains...; 关键词：trapped ion quantum computing robust optimization high-fidelity quantum gates magnus expansion

High-Magnetic-Field-Induced First-Order Magnetic Transition and Tricritical Phenomenon in Antiferromagnetic Semimetal NdSb: 《Chinese Physics Letters》2025年第2期125-131,共7页Jun Zhao Azizur Rahman Wei Liu Langsheng Ling Yuyan Han Chuanying Xi Li Pi Zhe Qu Hao Gao Lei Zhang; supported by the National Key R&D Program of China(Grant No.2024YFA1611103);the National Natural Science Foundation of China(Grant Nos.12374128,12374129,12074386,11974181,12204006,and 12250410238);the Fujian Natural Science Foundation Project(Grant No.2024J08082);the Foundation for the Introduction of High-Level Talents and the Scientific Research Launch Project of Sanming University(Grant No.113/KD23016P);Fujian Key Technology Innovation Projects(University Category)(Grant No.2022G02010);the Anhui Provincial Major S&T Project(Grant No.202305a12020005);the Alliance of International Science Organizations(Grant Nos.ANSO-VF-2022-03 and ANSO-VF-2023-03);supported by the Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures(Grant No.JZHKYPT-2021-08);the High Magnetic Field Laboratory of Anhui Province under Contract No.AHHMFX-2020-02。; The antiferromagnetic(AFM)semimetal NdSb is well known for the interplay between its exotic magnetism and topological properties.However,its magnetism remains poorly understood.In this study,we thoroughly investigated...; 关键词：critical MAGNETIZATION Transition

ADAPTIVE REGULARIZED QUASI-NEWTON METHOD USING INEXACT FIRST-ORDER INFORMATION: 《Journal of Computational Mathematics》2024年第6期1656-1687,共32页Hongzheng Ruan Weihong Yang; supported by the National Natural Science Foundation of China(Grant No.NSFC-11971118).; Classical quasi-Newton methods are widely used to solve nonlinear problems in which the first-order information is exact.In some practical problems,we can only obtain approximate values of the objective function and i...; 关键词：Inexact first-order information REGULARIZATION Quasi-Newton method

Symmetric Brake Orbits with Minimal Period of First-order Anisotropic Hamiltonian Systems: 《Acta Mathematica Sinica,English Series》2024年第12期3079-3092,共14页Xiao Fei ZHANG Fan Jing WANG; supported by the National Natural Science Foundation of China(Grant No.12301138);the Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(Grant No.2021L377);the Doctoral Scientific Research Foundation of Shanxi Datong University(Grant No.2018-B-15)。; Via the homology link theorem and the L0-index theory,symmetric brake orbits with minimal period are ensured for first-order Hamiltonian systems under anisotropic growth assumptions,which are variant forms of sub-quad...; 关键词：Hamiltonian system anisotropic growth brake orbit L 0-index

Improved Strategy of Grid-Forming Virtual Synchronous Generator Based on Transient Damping: 《Energy Engineering》2024年第11期3181-3197,共17页Lei Zhang Rongliang Shi Junhui Li Yannan Yu Yu Zhang; supported by the Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology(Northeast Electric Power University)Open Fund of China under Grant MPSS2024-08.; The grid-forming virtual synchronous generator(GFVSG)not only employs a first-order low-pass filter for virtual inertia control but also introduces grid-connected active power(GCAP)dynamic oscillation issues,akin to t...; 关键词：Grid-forming virtual synchronous generator first-order low-pass filter lead-lag filter small-signal model parameter design

Estimation of Landfill Gas and Its Renewable Energy Potential from the Polesgo Controlled Landfill Using First-Order Decay (FOD) Models: 《Journal of Environmental Protection》2024年第10期975-993,共19页Haro Kayaba Ouarma Issoufou Dabilgou Téré Compaore Abdoulaye Sanogo Oumar Bere Antoine Koulidiati Jean; Methane generation in landfills and its inadequate management represent the major avoidable source of anthropogenic methane today. This paper models methane production and the potential resources expected (electrical ...; 关键词：First-Order Decay METHANE Modeling LANDFILL Renewable Energy

Transient response of doubly-curved bio-inspired composite shells resting on viscoelastic foundation subject to blast load using improved first-order shear theory and isogeometric approach被引量：1: 《Defence Technology（防务技术）》2024年第8期171-193,共23页Thuy Tran Thi Thu Tu Nguyen Anh Hue Nguyen Thi Hong Nguyen Thi; Investigating natural-inspired applications is a perennially appealing subject for scientists. The current increase in the speed of natural-origin structure growth may be linked to their superior mechanical properties...; 关键词：Blast load Modified first-order shear theory Biological composite structures

Improved LS+MAR hybrid method to UT1-UTC ultra-short-term prediction by using first-order-difference UT1-UTC: 《Geodesy and Geodynamics》2024年第4期379-385,共7页Fei Ye Yunbin Yuan; supported by China Natural Science Fund,China(No.42004016);the science and technology innovation Program of Hunan Province,China(No.2023RC3217);Research Foundation of the Department of Natural Resources of Hunan Province(Grant No:20240105CH);HuBei Natural Science Fund,China(No.2020CFB329).; Accurate ultra-short-term prediction of the Earth rotation parameters(ERP)holds paramount impor-tance for real-time applications,particularly in reference frame conversion.Among them,diurnal rota-tion(UT1-UTC)which ca...; 关键词：UT1-UTCultra-short-termprediction Rapidandultra-rapidproducts LS+AR and LS+MAR CORRELATION First-order-differenceUT1-UTC

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