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DENSITY: 作品数：1580被引量：2635H指数：16; 导出分析报告; 相关领域：理学更多>>; 相关作者：陈启康夏华周根友李波张俊飚更多>>; 相关机构：中国科学院清华大学北京理工大学中国科学技术大学更多>>; 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中国博士后科学基金国家教育部博士点基金更多>>

TRLLD:Load Level Detection Algorithm Based on Threshold Recognition for Load Time Series: 《Computers, Materials & Continua》2025年第5期2619-2642,共24页Qingqing Song Shaoliang Xia Zhen Wu; Load time series analysis is critical for resource management and optimization decisions,especially automated analysis techniques.Existing research has insufficiently interpreted the overall characteristics of samples...; 关键词：Load time series load level detection threshold recognition density uniformity index outlier detection management systems engineering

The inhomogeneous incompressible Hall-MHD system with only bounded density: 《Science China Mathematics》2025年第4期839-872,共34页Jin Tan Lan Zhang; supported by the Agence Nationale de la Recherche Project BORDS(Grant No.ANR-16-CE40-0027-01);the Labex MME-DII;and the CY Initiative of Excellence;Project CYNA(CY Nonlinear Analysis);supported by National Natural Science Foundation of China(Grant No.12101472)。; This paper is dedicated to the global-in-time existence and uniqueness issues of solutions for the inhomogeneous incompressible Hall-magnetohydrodynamics(MHD)system with merely bounded density.In a three-dimensional c...; 关键词：inhomogeneous Hall-MHD system discontinuous density critical regularity maximal regularity

Dynamic changes of gravity field before the Luding Ms6.8 earthquake and its crustal material migration characteristics: 《Geodesy and Geodynamics》2025年第2期214-222,共9页Qingqing Tan Chongyang Shen Jjiapei Wang Xiong Yang Wen Jin Minghui Zhang Hongbo Tan Guangliang Yang; the National Natural Science Foundation of China(Grant No.42374105,42204089,42174104);Scientific Research Fund of Institute of Seismology,China Earthquake Administration(Grant No.IS202326341,IS202336350).; On September 5,2022,an earthquake of magnitude Ms6.8 occurred in Luding County,Sichuan Province.This earthquake occurred at the key part of the southeast-clockwise extrusion of material on the eastern margin of the Qi...; 关键词：Luding earthquake Gravity changes Three-dimensional density changes Gravity inversion

Infrared small target detection based on density peaks searching and weighted multi-feature local difference: 《Optoelectronics Letters》2025年第4期218-225,共8页JI Bin FAN Pengxiang WANG Mengli LIU Yang XU Jiafeng; supported by the National Natural Science Foundation of China (No.52205548)。; To address the issues of unknown target size,blurred edges,background interference and low contrast in infrared small target detection,this paper proposes a method based on density peaks searching and weighted multi-f...; 关键词：extract featur background clutter density peaks searching infrared small target detection weighted multi feature local difference capturing real targets density peak infrared small target detectionthis

3D crustal density modeling of Egypt using GOCE satellite gravity data and seismic integration被引量：1: 《Earthquake Science》2025年第2期110-125,共16页Moataz Sayed Mohamed Sobh Salah Saleh Amal Othman Ahmed Elmahmoudi; A 3D crustal model was constructed using a combination of cutting-edge techniques,which were integrated to provide a density model for Egypt and address the sporadic distribution of seismic data.These techniques inclu...; 关键词：GOCE satellite gravity Moho depth crustal modeling gravity inversion

An energy-based method for uniaxially compressed rocks and its implication: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第3期1429-1444,共16页Yong Luo Jiancheng Huang Xuefeng Si Feng Lin Wuxing Wu; the National Natural Science Foundation of China(Grant Nos.52104133 and 52304227);the Postdoctoral Foundation of Henan Province(Grant No.HN2022015)are appreciated.; To obtain the precise calculation method for the peak energy density and energy evolution properties of rocks subjected to uniaxial compression(UC)before the post-peak stage,particularly at s0.9sc(s denotes stress and...; 关键词：Calculation method of peak energy density Energy evolution Energy storage efficiency Damage threshold

Review of Wave Energy Resource Characterisation,Metrics,and Global Assessments: 《哈尔滨工程大学学报(英文版)》2025年第1期53-75,共23页Sara Ramos-Marin C.Guedes Soares; This paper provides an overview of the global wave resource for energy exploration.The most popular metrics and estimators for wave energy resource characterization have been compiled and classified by levels of energ...; 关键词：Marine energy Wave resource assessment Wave energy converter Numerical wave models Wave power density WEC performance

Revealing the limits of laser energy density: A study of the combined effects of process parameters on melt pool and microstructure in WE43 magnesium alloys: 《Journal of Magnesium and Alloys》2025年第3期1034-1049,共16页Chee Ying Tan Cuie Wen Edwin Mayes Dechuang Zhang Hua Qian Ang; Additive manufacturing(AM)has revolutionized modern manufacturing,but the application of magnesium(Mg)alloys in laser-based AM remains underexplored due to challenges such as oxidation,low boiling point,and thermal ex...; 关键词：Laser surface melting(LSM) Magnesium alloys MICROSTRUCTURE Laser processing parameters Spot size

Utility and influence mechanism of densification modulation on grain boundary diffusion in NdFeB magnets: 《Journal of Rare Earths》2025年第3期569-577,I0006,共10页San'gen Luo Munan Yang Shuwei Zhong Sajjad Ur Rehman Jiajie Li Xiaoqiang Yu Bin Yang; Project supported by the National Natural Science Foundation of China(52361033);National Key Research and Development Program(2022YFB3505400);Ministry of Industry and Information Technology Heavy Rare Earth Special Use of Sintered NdFeB Project(TC220H06J);Academic and Technical Leaders in Major Disciplines in Jiangxi Province(2022BCJ23007);Jiangxi Province Science and Technology Cooperation Key Project(20212BDH80007);Jiangxi Graduate Student Innovation Special Fund Project(YC2023-B213)。; Grain boundary diffusion technology is pivotal in the preparation of high-performance NdFeB magnets.This study investigates the factors that affect the efficiency of grain boundary diffusion,starting from the properti...; 关键词：NdFeB magnets DENSITY Grain boundary diffusion Defect utility Rare earths

COVID-19’s effects on microvascular structure in a healthy retina:an OCTA study: 《International Journal of Ophthalmology(English edition)》2025年第2期283-289,共7页Kazim Kiratli Hazan Gul Kahraman Yusuf Ziya Guven Fahrettin Akay Murat Aysin; AIM:To examine the subclinical alterations in the retina and choroid between patients with 2019 coronavirus disease(COVID-19)-related lung involvement and the healthy control group.METHODS:In this prospective case-con...; 关键词：COVID-19 PNEUMONIA perfusion density vascular density optical coherence tomography angiography

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