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LOCAL INFLUENCE IN DISCRIMINANT ANALYSIS

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Systems Science and Mathematical Sciences 1995年第1期8卷 27-36页

作者： WANG Xueren REN Shiquan SHI Lei (department of Statistics, yunnan university,{2., china) 云南大学统计系云南昆明

ＬＯＣＡＬＩＮＦＬＵＥＮＣＥＩＮＤＩＳＣＲＩＭＩＮＡＮＴＡＮＡＬＹＳＩＳＷＡＮＧＸｕｅｒｅｎ；ＲＥＮＳｈｉｑｕａｎ；ＳＨＩＬｅｉ（ＤｅｐａｒｔｍｅｎｔｏｆＳｔａｔｉｓｔｉｃｓ，ＹｕｎｎａｎＵｎｉｖｅｒｓｉｔｙ，Ｋｕｎ... 详细信息

ＬＯＣＡＬＩＮＦＬＵＥＮＣＥＩＮＤＩＳＣＲＩＭＩＮＡＮＴＡＮＡＬＹＳＩＳＷＡＮＧＸｕｅｒｅｎ；ＲＥＮＳｈｉｑｕａｎ；ＳＨＩＬｅｉ（ＤｅｐａｒｔｍｅｎｔｏｆＳｔａｔｉｓｔｉｃｓ，ＹｕｎｎａｎＵｎｉｖｅｒｓｉｔｙ，Ｋｕｎｍｉｎｇ６５００９１，Ｃｈｉｎａ）...

关键词： Discriminant analysis generalized cook statistic perturbation scheme local influence.

Characteristic modules of quasi-hereditary algebras with three samples

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Chinese Science Bulletin 1997年第6期42卷 450-454页

作者： ZHANG Pu and LIN Yanan1. department of mathematics, {2. of Science and Technology of china, Hefei 2.002., china 2. department of mathematics, Xiamen {2., Xiamen 361005, china department of mathematics University of Science and Technology of China Hefei China department of mathematics Xiamen University Xiamen China

CLINE et al. have introduced the concept of quasi-hereditary algebra, which provided a

关键词： tilting module characteristic module quasi-hereditary algebra.

An equality on Hochschild homology groups

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Chinese Science Bulletin 1997年第8期42卷 624-627页

作者： ZHANG Pu and LIU Shaoxue1. department of mathematics, {2. of Science and Technology of china, Hefei 2.002., china 2. department of mathematics, Beijing Normal {2., Beijing 100875, china department of mathematics University of Science and Technology of China Hefei China department of mathematics Beijing Normal University Beijing China

LET A be finite-dimensional algebra over field k,and Ae the enveloping algebra of A,i.e.Ae=A kAop,where Aop is the opposite algebra of *** A-bimodule has a natural left Ae-module structure as follows:

关键词： finite-dimensional algebra Hochschild homology groups dimensions.

Blow-UP of Solutions of Some Nonlinear Elastic Wave Equations

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期 6-8页

作者： Shuhong HE and Zhengde DAI (department of mathematics{2. , kunming 650091, china) E mail: lubn@***

Ｉｎｓｏｍｅｐｒｏｂｌｅｍｓｏｆｎｏｎｌｉｎｅａｒｗａｖｅｐｒｏｐａｇａｔｉｏｎｉｎｗａｖｅｇｕｉｄｅｓｔｈｅｉｎｔｅｒａｃｔｉｏｎｏｆｗａｖｅｇｕｉｄｅｓａｎｄｔｈｅｅｘｔｅｒｎａｌｍｅｄｉｕｍａｎｄｔｈｅｒｅｆｏ... 详细信息

Ｉｎｓｏｍｅｐｒｏｂｌｅｍｓｏｆｎｏｎｌｉｎｅａｒｗａｖｅｐｒｏｐａｇａｔｉｏｎｉｎｗａｖｅｇｕｉｄｅｓｔｈｅｉｎｔｅｒａｃｔｉｏｎｏｆｗａｖｅｇｕｉｄｅｓａｎｄｔｈｅｅｘｔｅｒｎａｌｍｅｄｉｕｍａｎｄｔｈｅｒｅｆｏｒｅｔｈｅｐｏｓｓｉｂｉｌｉｔｙｏ...

关键词： nonlinear strain wave equations blow up

Joint density of hitting time and point to an ellipse for Brownian motion

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Chinese Science Bulletin 1997年第24期42卷 2054-2058页

作者： YIN Chuancun ZHAO Xuelei department of mathematics, Qufu Normal {2., Qufu 2.3165, china 2. Institute of mathematics, Shantou {2., Shantou 515063, china department of mathematics Qufu Normal University Qufu 273165 China

IT is well known that the distribution of hitting time, hitting point, last exiting time, and lastexiting point for Brownian motion to balls has been extensively studied. A similar investi-gation of rectangles or cubes has also been well done. However, analogous questions for Brow-nian motion to ellipsoid are rarely concerned. Bai and Cai obtained the distribution of

关键词： Brownian motion hitting time hitting point ellipse.

Characteristic analysis for a polynomial-like iterative equation

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Chinese Science Bulletin 1998年第3期43卷 192-196页

作者： Janusz Matkowski 1 and ZHANG Weinian 2.1. department of mathematics, Technical {2., 43_300 Bielsko_Biala, Poland 2. department of mathematics, Sichuan Union {2., Chengdu 610064, china department of mathematics Technical University Bielsko-Biala Poland department of mathematics Sichuan Union University Chengdu China

In the light of Euler’s idea for differential equations,a polynomial_like n _order iterative equation is discussed through analyzing its characteristic polynomial. An unproved result is verified rigorously for the fi... 详细信息

关键词： iterative dynamics functional equation characteristic.

Dielectric polymer grafted electrodes enhanced aqueous supercapacitors

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Nano Research 2024年第3期17卷 1525-1534页

作者： Shian Dong kunming Shi Jie Chen Yingke Zhu Hongfei Li Weihang Gao Zhenli Xu Qinglei Liu Xingyi Huang Shanghai Key Laboratory of Electrical Insulation and Thermal Aging Department of Polymer Science and EngineeringState Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghai 200240China School of Mathematical Sciences Institute of Natural Sciences and MOE−LSCShanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China

Supercapacitors(SCs)have become increasingly important in electrical energy storage and delivery owing to their high power densities and long *** SCs are promising for large-scale engineering applications because of their low cost and ***,the low operating voltage and low energy density of aqueous SCs severely limit their practical *** this study,a nanoscale dielectric layer is grafted onto a graphene electrode to achieve both a high operating voltage and enhanced *** with an SC without dielectric grafting,a dielectric-enhanced SC(DESC)shows a higher capacitance by 2.00%.The mechanism of the capacitance enhancement can be attributed to three factors:the dielectric polarization,the ions desolvation by the dielectric,and the enhanced quantum capacitance from charge transfer and ion adsorption in the polymer *** addition,a 2.5 V pouch DESC with a 1 M KCl electrolyte is confirmed to cycle up to 50,000 times with a capacitance retention of 87.5%.The DESC presents the optimal electrochemical properties after it is grafted with a 5 nm dielectric *** study provides new insights into the design of high-voltage and high-energy-density aqueous SCs.

关键词： supercapacitors dielectric polymer high voltage capacitance enhancement

EFFECT OF SOLVENT POLARITY ON THE RATES AND PRODUCT RATIOS OF MICROWAVE INDUCED DIELS－ALDERREACTION

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Chinese Chemical Letters 1995年第6期6卷 469-472页

作者： Rong Shun ZHU Rin Jie HONG Shu Shan DAI(department of Chemistry yunnan university{2.) yunnan Univ Dept Chem Kunming 650091 Peoples R China

s:The rates and yields of two Diels-Alder *** a series of different solvents as the energy-transfer medium under microwave irradiation(frequency,2.50 MHZ)and conventional refluxing at ambient *** been compared The 1ho...

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Dynamical understanding of loop soliton solution for several nonlinear wave equations

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Science china mathematics 2007年第6期50卷 773-785页

作者： Ji-bin LI department of mathematics, Zhejiang Normal {2., Jinhua 32.004, china kunming {2. of Science and Technology, kunming 650093, china department of mathematics Zhejiang Normal University Jinhua 321004 China kunming university of Science Technology Kunming 650093 China

It has been found that some nonlinear wave equations have one-loop soliton solutions. What is the dynamical behavior of the so-called one-loop soliton solution? To answer this question, the travelling wave solutions for four nonlinear wave equations are discussed. Exact explicit parametric representations of some special travelling wave solutions are given. The results of this paper show that a loop solution consists of three different breaking travelling wave solutions. It is not one real loop soliton travelling wave solution.

关键词： planar dynamical system homoclinic orbit solitary wave solution one-loop soliton solution periodic wave solution bifurcation nonlinear wave equation 34C37 34C2. 74J30 58Z05