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Fast Solving the Cauchy Problems of Poisson Equation in an Arbitrary Three-Dimensional Domain
《Computer Modeling in Engineering & Sciences》2018年第3期351-380,共30页Cheinshan Liu Fajie Wang Wenzheng Qu 
The work described in this paper was supported by the Thousand Talents Plan of China(Grant No.A1211010);the Fundamental Research Funds for the Central Universities(Grant nos.2017B656X14,2017B05714);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(Grant No.KYCX17_0487);the Natural Science Foundation of Shandong Province of China(Grant No.ZR2017BA003).
In this paper we propose a novel two-stage method to solve the threedimensional Poisson equation in an arbitrary bounded domain enclosed by a smooth boundary.The solution is decomposed into a particular solution and a...
关键词：Poisson equation multiple/scale/direction Trefftz METHOD multiple-scale polynomial METHOD IRREGULAR DOMAIN inverse CAUCHY problem 
基于分布式温度信息的土体含水率多尺度估算方法
《岩土工程学报》2024年第12期2661-2667,共7页顾凯 张博 姜霖 王勇 施斌 
国家自然科学基金面上项目(42277124,41977217);江苏省基础研究计划自然科学基金面上项目(BK20231216);教育部关键地球物质循环前沿科学中心青年教师独立团队项目(0206-14380148);中央高校基本科研业务费国际合作项目(0206-14380119)。
土体水分迁移过程及其规律是岩土工程、地质工程等领域的重点研究内容之一,准确掌握土体含水率时空演化是开展上述研究的重要前提。基于分布式光纤温度感测技术(fiber optic distributed temperature sensing,FO-DTS),开展了原位测试,...
关键词：FO-DTS 自然温度信息 土体含水率 多尺度 
A viscoelastic nonlinear energy sink with an electromagnetic energy harvester:Narrow-band random response
《Chinese Physics B》2024年第7期147-156,共10页廖志晶 孙亚辉 刘洋 
Project supported by the National Natural Science Foundation of China(Grant No.12002089);the Science and Technology Projects in Guangzhou(Grant No.2023A04J1323);UKRI Horizon Europe Guarantee(Grant No.EP/Y016130/1)。
Nonlinear energy sink is a passive energy absorption device that surpasses linear dampers, and has gained significant attention in various fields of vibration suppression. This is owing to its capacity to offer high v...
关键词：nonlinear energy sink fractional-order damping multiple-scale method energy harvester 
多尺度人类活动影响下的氮循环和氮代谢研究进展被引量：1
《中国人口·资源与环境》2016年第S2期417-422,共6页张妍 陆韩静 郑宏媚 
国家重点研发计划项目(批准号:2016YFC0503005);新世纪优秀人才支持计划"生态模拟"(批准号:NCET-12-0059);国家自然科学基金创新研究群体项目"流域水环境;水生态和综合管理"(批准号:51421065);国家自然科学基金面上项目"京津冀城市群能源-污染物代谢过程-格局-机理研究"(批准号:41571521);中央高校基本科研业务费专项资金"城市能量代谢过程及其碳足迹分析"(批准号:2015KJJCA09)
自从Haber-Bosch固氮法发明以来,人类活动带来的高氮输入量已经极大的改变了氮的生物化学循环过程,多尺度氮研究成为热点,相关应用不断展开。但目前多尺度氮核算、评价与模拟研究还较为分散,难以形成系统的方法体系,有效服务于多级、分...
关键词：氮循环 氮代谢 评价 模拟 多尺度 
Joint Multifractal Analysis of Scaling Relationships Between Soil Water-Retention Parameters and Soil Texture被引量：2
《Pedosphere》2011年第3期373-379,共7页WANG Zheng-Ying SHU Qiao-Sheng XIE Li-Ya LIU Zuo-Xin B. C. SI 
Supported by the National Key Technology R&D Program in the 11th Five-Year Plan of China (Nos.2008BADA4B03 and 2009BADB3B07)
Soil water-retention characteristics at measurement scales are generally different from those at application scales, and there is scale disparity between them and soil physical properties. The relationships between tw...
关键词：clay content multiple-scale analysis sand content silt content van Genuchten parameters 
A Comparative Study on Polynomial Expansion Method and Polynomial Method of Particular Solutions
《Advances in Applied Mathematics and Mechanics》2022年第3期577-595,共19页Jen-Yi Chang Ru-Yun Chen Chia-Cheng Tsai 
The Ministry of Science and Technology of Taiwan is gratefully acknowledged for providing financial support to carry out the present work under the Grant No.MOST 109-2221-E-992-046-MY3.
In this study,the polynomial expansion method(PEM)and the polynomial method of particular solutions(PMPS)are applied to solve a class of linear elliptic partial differential equations(PDEs)in two dimensions with const...
关键词：Pascal polynomial polynomial expansion method polynomial method of particular solutions collocation method multiple-scale technique 
Multi-scale habitat selection and impacts of climate change on the distribution of four sympatric meso-carnivores using random forest algorithm被引量：2
《Ecological Processes》2020年第1期709-725,共17页Tahir Ali Rather Sharad Kumar Jamal Ahmad Khan 
The study had no central budget.The field assistance,including accommodation,vehicle,and field assistants were facilitated by a local NGO(The Corbett Foundation).
Background:The habitat resources are structured across different spatial scales in the environment,and thus animals perceive and select habitat resources at different spatial scales.Failure to adopt the scale-dependen...
关键词：Multiple-scale MULTI-SPECIES Sympatric carnivores Species distribution modeling Bandhavgarh Climate change 
Introduction to the JES Special Issue on “Multiple-Scale Geodynamics of Continental Interiors”
《Journal of Earth Science》2011年第2期I0002-I0002,共1页Zhou Huawei 
A major mission of geosciences is to characterize the composition, structure and geodynamic history of the earth＇s continental interiors. Because the evidence for such studies is spread over different disciplines and...
关键词：Multiple-Scale Geodynamics of Continental Interiors 
Numerical Simulation of Non-Linear Schrodinger Equations in Arbitrary Domain by the Localized Method of Approximate Particular Solution被引量：2
《Advances in Applied Mathematics and Mechanics》2019年第1期108-131,共24页Yongxing Hong Jun Lu Ji Lin Wen Chen 
The authors thank the editor and anonymous reviewers for their constructive comments on the manuscript.The research of the authors was supported by the Natural Science Foundation of Jiangsu Province(No.BK20150795);the Fundamental Research Funds for the Central Universities(No.2018B16714);the National Natural Science Foundation of China(Nos.11702083,51679150,51579153,51739008,51527811);the State Key Laboratory of Mechanics and Control of Mechanical Structures(Nanjing University of Aeronautics and Astronautics)(No.MCMS-0218G01);the National Key R&D Program of China(No.2016YFC0401902);the Fund Project of NHRI(Nos.Y417002,Y417015).
The aim of this paper is to propose a fast meshless numerical scheme for the simulation of non-linear Schrodinger equations.In the proposed scheme,the implicit-Euler scheme is used for the temporal discretization and ...
关键词：Schrodinger equation Localized method of approximate particular solution Shape parameters Multiple-scale technique 
BIFURCATION OF THE ELECTROMECHANICALLY COUPLED SUBSYNCHRONOUS TORSIONAL OSCILLATING SYSTEM WITH HYSTERETIC BEHAVIOR被引量：2
《Acta Mechanica Sinica》1997年第1期81-90,共10页徐健学 傅卫平 张新华 
The project supported by the National Natural Science Foundation of China(as a key project);the State Education Committee Pre-research Foundation.
In subsynchronous resonance (SSR) systems where shaft systems of turbine-generator sets are coupling with electric networks, Hopf bifurcation will occur under certain conditions. Some singularity phenomena may generat...
关键词：HYSTERESIS Hopf bifurcation intrinsic multiple-scale harmonic balance method electromechanical coupling subsynchronous resonance 
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