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Partial Solution Operator Discretization-Based Methods for Efficiently Computing Least-Damped Eigenvalues of Large Time Delayed Power Systems: 《CSEE Journal of Power and Energy Systems》2025年第2期671-682,共12页Hua Ye Xiaofan Jia Muyang Liu Yutian Liu Sicong Zhang; supported in part by the National Natural Science Foundation of China(No.51677107,52077126)。; To investigate impact of time delays on the small signal stability of power systems, the least-damped eigenvalues with the smallest damping ratios have been calculated by eigen-analysis methods based on Solution Opera...; 关键词：Eigenvalue analysis low frequency oscillation Schur complement decomposition small signal stability solution operator discretization spectral discretization time delay wide-area measurement system

Young Agricultural Machine Operator Replies Dream in Fields: 《Women of China》2025年第3期68-69,共2页Zhang Jun; Liu Huiting,who chairs an agricultural machine rural cooperative in her hometown,has evolved from a college graduate to a young,new farmer,and that evolution has enabled her to transform herself from an accountant to ...; 关键词：plies OPERATOR AGRICULTURAL

Learning complex nonlinear physical systems using wavelet neural operators: 《Chinese Physics B》2025年第3期461-472,共12页Yanan Guo Xiaoqun Cao Hongze Leng Junqiang Song; Project supported by the National Natural Science Foundation of China(Grant Nos.42005003 and 41475094)。; Nonlinear science is a fundamental area of physics research that investigates complex dynamical systems which are often characterized by high sensitivity and nonlinear behaviors.Numerical simulations play a pivotal ro...; 关键词：nonlinear science TURBULENCE deep learning wavelet neural operator

3D Seismic Data Reconstruction based on Weighted Fast Iterative Shrinkage Thresholding algorithm: 《Applied Geophysics》2025年第1期22-34,231,232,共15页Zhang Hua Qiu Da-Xing Mo Zi-Fen Hao Ya-Ju Wu Zhao-Qi Dai Meng-Xue; National Natural Science Foundation of China under Grant 42304145;Jiangxi Provincial Natural Science Foundation under Grant 20242BAB26051,20242BAB25191 and 20232BAB213077;Foundation of National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing under Grant 2024QZ-TD-13;Open Fund(FW0399-0002)of SINOPEC Key Laboratory of Geophysics。; Data reconstruction is a crucial step in seismic data preprocessing.To improve reconstruction speed and save memory,the commonly used three-dimensional(3D)seismic data reconstruction method divides the missing data in...; 关键词：data reconstruction fast iterative shrinkage thresholding prior support set weighted operator

Property(W_(E))and Property and Property(R)for for Operator and Its Functions Operator and Its Functions: 《Wuhan University Journal of Natural Sciences》2025年第1期60-68,共9页SUN Chenhui CAO Xiaohong; Supported by the 2021 General Special Scientific Research Project of the Education Department of Shaanxi Provincial Government(21JK0637);the Science and Technology Planning Project of Weinan Science and Technology Bureau(2022ZDYFJH-11);the 2021 Talent Project of Weinan Normal University(2021RC16)。; By using the topological uniform descent,the necessary and sufficient conditions for which property(W_(E))and property(R)hold for bounded linear operators are given.As a consequence of the main result,the stability of...; 关键词：property(W_(E)) property(R) SPECTRUM

Estimating Transient Stability Regions of Large-Scale Power Systems Part Ⅰ:Koopman Operator and Reduced-Order Model: 《CSEE Journal of Power and Energy Systems》2025年第1期24-37,共14页Yuqing Lin Tianhao Wen Lei Chen Q.H.Wu Yang Liu; This paper presents an estimation of transient stability regions for large-scale power systems.In Part I,a Koopman operator based model reduction(KOMR)method is proposed to derive a low-order dynamical model with reas...; 关键词：Data driven method dynamic mode decomposition Koopman operator model reduction power systems

Definition and Properties of a Vector-Matrix Reversal Operator: 《Journal of Applied Mathematics and Physics》2025年第2期623-632,共10页Ramon Carbó-Dorca; An in-depth description of an apparently forgotten matrix operation, the reversal operator, is developed. The properties of such an operation are also given, resulting in a new vector-matrix operation resembling the w...; 关键词：Reversal Operator Reverse of a Vector Reverse of a Matrix Reversal Invariance Reversal Matrix Linear Algebra Programming Techniques

Valence electron matching law for MXene-based single-atom catalysts: 《Journal of Energy Chemistry》2025年第2期641-650,I0013,共11页Pei Song Yuhang Zhou Zishan Luo Hang Zhang Xi Sun Sen Lu Zepeng Jia Hong Cui Weizhi Tian Rong Feng Lingxia Jin Hongkuan Yuan; funded by the National Natural Science Foundation of China(61701288,51706128);the Natural Science Basic Research Program of Shaanxi Province(2021JM-485);the Key Scientific Research Project of Shaanxi Provincial Education Department(20JS019);the High-level Achievement Cultivation Project of Collaborative Innovation Center for Comprehensive Development of Qinba Biological Resources(QBXT-17-8);the Postgraduate Innovation Project of Shaanxi University of Technology(SLGYCX2410).; Single-atom catalysts(SACs)have attracted considerable interest in the fields of energy and environmental science due to their adjustable catalytic activity.In this study,we investigated the matching of valence electr...; 关键词：Density functional theory Nitrogen reduction reaction Sure independence screening and sparsifying operator Valence electron matching law

Hysteresis modeling and compensation of piezo actuator with sparse regression: 《Journal of Systems Engineering and Electronics》2025年第1期48-61,共14页JIN Yu WANG Xucheng XU Yunlang YU Jianbo LU Qiaodan YANG Xiaofeng; National Natural Science Foundation of China(62203118)。; Piezo actuators are widely used in ultra-precision fields because of their high response and nano-scale step length.However,their hysteresis characteristics seriously affect the accuracy and stability of piezo actuato...; 关键词：sparse identification of nonlinear dynamics(SINDy) hysteresis loop relay operator sparse regression piezo actuator

A New Fuzzy Number Similarity Measure Based on Quadratic-Mean Operator for Handling Fuzzy Recommendation Problems: 《Journal of Computer and Communications》2025年第1期108-124,共17页Shijay Chen; This study presents a new approach that advances the algorithm of similarity measures between generalized fuzzy numbers. Following a brief introduction to some properties of the proposed method, a comparative analysis...; 关键词：Quadratic-Mean Operator Generalized Fuzzy Numbers Similarity Measures Fuzzy Number Recommendation

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