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检索条件"主题词=problems"
645 条 记 录,以下是51-60 订阅
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Preface: Studies on Inverse problems with Applications:a Collection of Papers from Chinese Scholars
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Acta Mathematicae Applicatae Sinica 2020年 第1期36卷 1-2页
作者: Gang BAO Jin CHENG Ji-jun LIU Bo ZHANG Zhejiang University Hangzhou 200433China School of Mathematical Sciences Fudan UniversityShanghai 200433China School of Mathematics Shanghai University of Finance and EconomicsShanghai 200433China School of Mathematics Southeast UniversityNanjing 210096China Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China
With the promotion by both mathematics itself and the practical requirements from modern society,the interest of studies on inverse problems and ill-posed problems,at home and abroad,has been flourishing in recent dec... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
The Solution to Current Psychosocial problems and the “Unfulfilled Enlightenment” of Modernity in the New Era
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学术界 2019年 第9期 208-216页
作者: Sun Shujing College of Marxism Henan University of Science and Technology
The transition period of Chinese society has spawned many psychosocial problems in China,which are characterized by high incidence,universality and growth. Compared with social and economic development,the devel-opmen... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Market-based solutions:An appropriate approach to resolve environmental problems
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Chinese Journal of Population,Resources and Environment 2013年 第1期11卷 87-91页
作者: Bei Zhang Lixia Committee Office of the Communist Party of China
It was the first time that the Intergovernmental Panel on Climate Change(IPCC),which was founded in 1988,regarded climate change as a significant international political problem(O'Brien and Williams 2007).Over the nex... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
THE KANTOROVICH THEOREM FOR NONLINEAR COMPLEMENTARITY problems
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Chinese Science Bulletin 1992年 第7期37卷 529-533页
作者: 周叔子 严钦容 Department of Applied Mathematics Hunan University Changsha 410082 PRC
Nonlinear complementarity problems (NCP) are a kind of important problem presenting in mathematical physics and economic management, whose numerical solution has recently been paid more attention to (see Refs. [1—5] ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Genetically modified foods:A critical review of their promise and problems
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Food Science and Human Wellness 2016年 第3期5卷 116-123页
作者: Chen Zhang Robert Wohlhueter Han Zhang Department of Gene and Signaling Expression La Jolla Institute for Allergy and ImmunologyLa JollaCA 92037United States Department of Chemistry Georgia State UniversityAtlantaGA 30303United States Department of Microbiology and Immunology School of MedicineEmory UniversityAtlantaGA 30322United States
The term“genetic modified organisms(GMO)”has become a controversial topic as its benefits for both food producers and consumers are companied by potential biomedical risks and environmental side effects.Increasing c... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
WAVELET ALGORITHM FOR INTEGRAL OPERATOR EQUATION AND ITS APPLICATIONS TO ELECTROMAGNETIC problems
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Journal of Electronics(China) 1995年 第3期12卷 211-221页
作者: 宋玉明 方大纲 Millimeter Wave Technique Laboratory Nanjing University of Science & Technology Nanjing 210094Millimeter Wave Technique Laboratory Nanjing University of Science & Technology Nanjing 210094
A brief summary of the basic theory of wavelet is proposed. The properties of wavelet function are discussed. The possible applications of wavelet to electromagnetics are given. Examples show that the wavelet method i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Self-esteem enhancement as a strategy for promoting the mental health and averting the occupational problems of nurses
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Frontiers of Nursing 2019年 第1期6卷 59-65页
作者: Ling He Yu-Feng Ma Ke-Sen Zhang Ya-Xing Wang School of Nursing Tianjin University of Traditional Chinese Medicine Tianjin Nursing Association
In recent years, shortage of nurses, high turnover rate, low self-worth, and team instability have become increasingly serious. With the development of positive psychology, more and more nursing managers have begun to... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Amyotrophic lateral sclerosis,a neurodegenerative motor neuron disease with retinal involvement
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Neural Regeneration Research 2022年 第5期17卷 1011-1012页
作者: Ana I.Ramírez Rosa de Hoz Pilar Rojas Juan J.Salazar Instituto de Investigaciones Oftalmológicas Ramón Castroviejo.Universidad Complutense de Madrid MadridSpain Facultad deÓptica y Optometría.Departamento de Inmunología Oftalmología y ORL.Universidad Complutense de MadridMadridSpain Hospital General Universitario Gregorio Marañón Instituto Oftálmico de MadridMadridSpain
Amyotrophic lateral sclerosis(ALS)is a neurodegenerative disease that damages the motor neurons,the spinal cord,the cerebellum,and some areas of the brain.However,more recent studies show that it can also affect the v... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
New progress and problems of Quaternary moraine dating in the Tibetan Plateau
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Research in Cold and Arid Regions 2014年 第3期6卷 183-189页
作者: BenXing Zheng YongPing Shen KeQin Jiao XiuFeng Yin Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences
Since the 20th century, numerous Quaternary moraine dating methods have emerged, including lichenometric, moraine 14C, quartz sand thermoluminescence (TL), electron spin resonance (ESR), optically stimulated lumin... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
AN ANALYSIS OF SPLITTING EXTRAPOLATION FOR MULTIDIMENSIONAL problems
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Systems Science and Mathematical Sciences 1990年 第3期3卷 261-272页
作者: 吕涛 石济民 林振宝 Instute of Mathematical Sciences Academia Sinica ChengduChina Department of Mathematical Studies Hong Kong PolytechnicHong Kong
The splitting extrapolation is an important technique for solving multidimensionalproblems.In the case that error uh-u has an asymptotic expansion of form Σcαh2α,whereα=(α1,…,αs) and hα=h1α1,…hsαs,the met... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论