维普中文期刊产品整合服务
879篇 您的检索式:作者名="Mathes"
    题名 作者 年代 出处 被引量
1孤岛状态下含分布式电源的配电系统可靠性分析显示文摘分析了孤岛状态下含分布式电源的配电系统可靠性。针对配电网孤岛运行的特点,提出了可靠性分析的复合随机性负荷模型,提出了既能反映系统充裕度又体现动态特性的可靠性计算方法和衡量指标。计算结果表明,所提的模型、计算方法和衡量指标能充分反映分布式电源在不同程度上提高配电系统的可靠性,为系统的规划设计提供了重要参考。孙瑜 Math Bollen Graham Ault 2008电网技术2008,32,23:39
2GENERALIZED NEKRASOV MATRICES AND APPLICATIONS显示文摘In this paper,the concpet of generalized Nekrasov matrices in introduced,some prop-erties of these matrices are discussed,obtained equivalent representation of generalized diagonally dominant matrices.Mingxian Pang Zhuxiang Li (Dept. of Math, of Normal college, Beihua University, Ji Lin 132013, China) 2003Journal of Computational Mathematics2003,21,2:19
3Intermediate processes and critical phenomena: Theory, method and progress of fractional operators and their applications to modern mechanics显示文摘From point of view of physics, especially of mechanics, we briefly introduce fractional operators (with emphasis on fractional calculus and fractional differential equa- tions) used for describing intermediate processes and critical phenomena in physics and mechanics, their progress in theory and methods and their applications to modern me- chanics. Some authors’ researches in this area in recent years are included. Finally, prospects and evaluation for this subject are made.XU Mingyu1 & TAN Wenchang2 1. Institute of Applied Mathematics, School of Math & System Science, Shandong University, Jinan 250100, China 2. State Key Laboratory of Turbulence and Complex Systems & Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China 2006Science China(Physics,Mechanics & Astronomy)2006,49,3:15
4Static Theory for Planar Ferromagnets and AntiferromagnetsFeng Bo HANG Fang Hua LIN Courant Institute, 251 Mercer Street. New York. NY 10012, USA Dept. of Math, Princeton University, Fine Hall. Washington Road, Princeton, NJ 08544 USA. 2001Acta Mathematica Sinica,English Series2001,17,4:8
5Harmonic aspects of wind power integration显示文摘This paper discusses a number of ways in which wind power installations can impact the harmonic levels in the power system.Wind turbines are an additional source of harmonic emission,especially when it concerns'non-characteristic harmonics.'Parallel resonances can amplify the emission from individual turbines.A mathematical model is developed to quantify this amplification.Series resonances can result in high currents,driven by the background voltage distortion in the transmission grid,flowing into thewind park.Weakening of the transmission grid will increase lower order harmonics but reduce higher order harmonics.Math H.J.BOLLEN Kai YANG 2013Journal of Modern Power Systems and Clean Energy2013,1,1:8
6Two-Dimensional Graphs Moving by Mean Curvature FlowCHEN Jing Yi Department of Mathematics.The University of British Columbia.Vancouver.B.C..Canada V6T 1Z2 E-mail:jychen@math.ubc.caLI Jia Yu Institute of Mathematics.Academy of Mathematics and System Sciences.Chinese Academy of Sciences.Beijing 100080.P.R.China Department of Mathematics.Fudan University.Shanghai 200433.P.R.China E-mail:lijia@math03.math.ac.cnTIAN Gang Department of Mathematics,MIT.Cambridge.MA 02139.U.S.A.E-mail:tian@math,mit.edu 2002Acta Mathematica Sinica,English Series2002,18,2:7
7Travelling wave solutions of a generalized Camassa-Holm-Degasperis-Procesi equation显示文摘The travelling wave solutions of a generalized Camassa-Holm-Degasperis-Procesi equation ut-uxxt + (1 + b)umux = buxuxx + uuxxx are considered where b > 1 and m are positive integers. The qualitative analysis methods of planar autonomous systems yield its phase portraits. Its soliton wave solutions, kink or antikink wave solutions, peakon wave solutions, compacton wave solutions, periodic wave solutions and periodic cusp wave solutions are obtained. Some numerical simulations of these solutions are also given.DENG ShengFu1, GUO BoLing2 & WANG TingChun2,3 1Department of Mathematics, Zhanjiang Normal University, Zhanjiang 524048, China 2Institute of Applied Physics and Computational Mathematics, Beijing 100088, China 3 College of Math and Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China 2011Science China Mathematics2011,54,3:5
8Entropy correction of charged black hole via fermions tunneling beyond semi-classical approximation显示文摘Motivated by the idea of tunneling beyond semi-classical approximation of Majhi et al., we discuss entropy correction of Dirac particles tunneling from the Reissner-Nordstrm black hole with a global monopole. To get the corrections correctly, we regard the proportionality constants of quantum correction terms to the semi-classical term of action as the inverse of the square of the Planck Length but not that of the Planck Mass. Our study shows that corrections to the Bekenstein-Hawking entropy, namely the logarithmic term and the inverse area term, may be reproduced as the quantum effect is considered.ZENG XiaoXiong 1 , LI Ling 2 & HU XinYun 3 1 Journal of Sichuan University of Arts and Science, Dazhou 635000, China 2 Department of Maths and Finance-Economics, Sichuan University of Arts and Science, Dazhou 635000, China 3 Library of Sichuan University of Arts and Science, Dazhou 635000, China 2010Science China(Physics,Mechanics & Astronomy)2010,53,1:3
9OSCILLATION OF IMPULSIVE HYPERBOLIC PARTIAL DIFFERENTIAL EQUATION WITH DELAY显示文摘In this paper, oscillation properties of the solutions of impulsive hyperbolic equation with delay are investigated via the method of differential inequalities. Sufficient conditions for oscillations of the solutions are established.Xue Qiutiao Wu Sunyong (Dept. of Computational Sci. and Math., Guilin University of Electronic Technology, Guilin 541004) Liu Anping (School of Math, and Physics, China University of Geosciences, Wuhan 430074) 2006Annals of Differential Equations2006,22,3:3
10Grey Correlation Between Agricultural Input Factors and Regional GDP Growth in Anhui Province显示文摘In order to analyze the relation between agricultural input factors and economic growth in Anhui Province,the evaluation index system of agricultural input is built from the perspectives of subject,object and tools based on grey system theory. The government investment in agricultural science and technology is selected as the index of labor subject,that is labor-related index(X1) ,the total sown area of crops is selected as the index of labor object(X2) ,the investment in rural water and electricity construction is chosen as the index of tools(X3) ,and the GDP of Anhui Province is denoted by X0. According to the relevant data,the improved model of grey correlation analysis is adopted to calculate the correlation among the investment in agricultural water and electricity construction,total sown area of crops,government investment in agricultural science and technology,and the GDP in Anhui Province during 2004-2008. Results show that investment in agricultural science and technology contribute the largest to GDP growth,the increase and change of the total sown area and the investment in rural water and electricity construction have a weak correlation with GDP,they are in a less consistent development trend. On this basis,the government of Anhui Province further proposes to increase the investment in agricultural science and technology,enhance the protection of arable lands,keep the total sown area of crops,and properly maintain the rural water and electricity construction.MEN Ke-pei,ZHAO Kai College of Math & Physics,Nanjing University of Information Science & Technology,Nanjing 210044,China 2010Asian Agricultural Research2010,2,4:3
11ON OSCILLATION THEOREMS FOR HIGHER ORDER DIFFERENTIAL EQUATIONS显示文摘ONOSCILLATIONTHEOREMSFORHIGHERORDERDIFFERENTIALEQUATIONS¥ChenZongxuan(DeptofMath,JiangxiNormalUniv)NanchangAbstract:Inthispap...Chen Zongxuan(Dept of Math,Jiangxi Normal Univ)Nanchang 1994数学研究1994,27,1:3
12Hepatoprotective actions of melatonin:Possible mediation by melatonin receptors显示文摘Melatonin,the hormone of darkness and messenger of the photoperiod,is also well known to exhibit strong direct and indirect antioxidant properties. Melatonin has previously been demonstrated to be a powerful organ protective substance in numerous models of injury; these beneficial effects have been attributed to the hormone's intense radical scavenging capacity. The present report reviews the hepatoprotective potential of the pineal hormone in various models of oxidative stress in vivo,and summarizes the extensive literature showing that melatonin may be a suitable experimental substance to reduce liver damage after sepsis,hemorrhagic shock,ischemia/reperfusion,and in numerous models of toxic liver injury. Melatonin's influence on hepatic antioxidant enzymes and other potentially relevant pathways,such as nitric oxide signaling,hepatic cytokine and heat shock protein expression,are evaluated. Based on recent literature demonstrating the functional relevance of melatonin receptor activation for hepatic organ protection,this article finally suggests that melatonin receptors could mediate the hepatoprotective actions of melatonin therapy.Alexander M Mathes 2010World Journal of Gastroenterology2010,16,48:3
13Study on the endogenous phosphorus load of sediments in Miyun reservoir显示文摘Based on the research into the physical-chemical properties and distribution of sediments and the characteristics of pore water in sediments of Miyun reservoir, the release flux of the total phosphorus (TP) from sediments is estimated by simulating deposit environment of reservoir bottom in laboratory. They are 0.018 mg·cm-2·d-1 and 0.821 mg·cm-2·d-1 at 2℃ and 8℃ respectively. The gross TP released in a year is 11.34t. As a contrast, the pore water diffusion simulation method is used to measure gross TP released and gains 11.56t. The two results are relatively close and prove that experiment simulation has some reliability. On the basis of experiments, some conclusions can be drawn: (1) Endogenous phosphorus from sediments accounts for 27.9 percent of the TP entering the reservoir, and it cannot be ignored; and (2) increasing temperature is helpful to TP releasing from sediments.XU Qing, LIU Xiaoduan, WANG Huifeng, LIU Liu & LIU Jingying National Research Center of Geoanalysis, Beijing 100037, China The Occupational Disease Research Institute of Beijing, Beijing 100020, China College of Maths, Jilin University, Jilin 130026, China 2005Science China Earth Sciences2005,48,z2:3
14Some Notes on Large Deviations of Markov ProcessesLiming Wu Laboratoire de Mathématiques Appliquées,CNRS-UMR 6620 UniversitéBlaise Pascal,63177,A UBIERE,France and Department of Mathematics,Wuhan University Wuhan,430072 P.R China 2000Acta Mathematica Sinica,English Series2000,16,3:2
15Induction of CTGF by TGF-β1 in normal and radiation enteritis human smooth muscle cells: Smad/Rho balance and therapeutic perspectives显示文摘Valérie Haydont Denis Mathé Céline Bourgier Jalil Abdelali Jocelyne Aigueperse Jean Bourhis Marie-Catherine Vozenin-Brotons 2005Radiotherapy and Oncology2005,,2:2
16Appendix tumors in the era of laparoscopic appendectomy显示文摘P. Bucher Z. Mathe A. Demirag Ph. Morel 2004Surgical Endoscopy2004,,7:2
17Beneficial effects of hirudotherapy in a chronic case of complex regional pain syndrome显示文摘We report about hirudotherapy in a patient with chronic complex regional pain syndrome(CRPS) in the right hand. CRPS is a multifactorial disease associated with disabling pain as well as sensory and motor deficits. The optimal therapeutic management is based on personalized multimodal treatment approaches;however, hirudotherapy has not been described in the available literature. To date, we have completed five medicinal leech treatments. Altogether, hirudotherapy led to rapid and substantial relief of symptoms, especially with respect to pain intensity ratings and skin temperature asymmetries. In addition, the patient’s active and passive agility of the affected limb improved obviously.Rebecca Kulbida Alexander Mathes Johannes Loeser 2019Journal of Integrative Medicine2019,17,5:2
18MULTIPLE POSITIVE SOLUTIONS OF BOUNDARY VALUE PROBLEM FOR A SYSTEM OF NONLINEAR THIRD ORDER DIFFERENTIAL EQUATIONS显示文摘This paper is concerned with the boundary value problem for a system of nonlinear third order differential equations. Under some suitable conditions, the existence and multiplicity of the positive solutions are established by using abstract fixed-point theorems.Hu Ling Wang Lianglong (School of Math, and Computation Sciences, Anhui University, Hefei 230039 Dept. of Math., Huangshan University, Huangshan 245000) 2006Annals of Differential Equations2006,22,3:2
19EXISTENCE OF POSITIVE PERIODIC SOLUTIONS FOR INFINITE DELAY FUNCTIONAL DIFFERENTIAL EQUATIONS显示文摘In this paper, the existence of positive periodic solutions for infinite delay functional differential equations(FDEs for short) is discussed by utilizing a fixed point theorem on a cone in Banach space. Some results on the existence of positive periodic solutions are derived.Hu Xiulin Zhou Zongfu (School of Math, and Computation Science, Anhui University, Hefei 230039) 2006Annals of Differential Equations2006,22,3:2
20ON SEMI-SYMMETRIC RECURRENT-METRIC S-CONCIRCULAR CONNECTIONS显示文摘ONSEMI-SYMMETRICRECURRENT-METRICS-CONCIRCULARCONNECTIONS¥LiangYixing(DeptofMath,XiamenUniv.Xiamen361005)Abstract:Inthispaper,...Liang Yixing(Dept of Math,Xiamen Univ.Xiamen 361005) 1994数学研究1994,27,1:2
返回顶部 每页显示:
共44页 首页 上一页 第1页 下一页 末页 /44 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费