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Symmetry and Hojman Conserved Quantity of Tznoff Equations for Unilateral Holonomic System

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Communications in Theoretical Physics 2007年第7期 43-47页

作者： ZHENG Shi-Wang department of Physics and information Engineering,Shangqiu teachers college,Shangqiu 476000,chinaXIE Jia-Fang department of Mechanics,Beijing Institute of Technology,Beijing 100081,chinaJIA Li-Qun college of science,Southern Yangtze University,Wuxi 214122,china department of Physics and information Engineering Shangqiu Teachers College Shangqiu 476000 China department of Mechanics Beijing Institute of Technology Beijing 100081 China college of science Southern Yangtze University Wuxi 214122 China

Symmetry of Tzénoff equations for unilateral holonomic system under the infinitesimal transformationsof groups is *** definitions and discriminant equations of Mei symmetry and Lie symmetry of Tzénoffequations are *** and necessary condition of Lie symmetry deduced by the Mei symmetry is also *** conserved quantity of Tzénoff equations for the system above through special Lie symmetry and Lie symmetryin the condition of special Mei symmetry respectively is obtained.

关键词： unilateral constraint Tzénoff equations symmetry Hojman conserved quantity

New ternary compound La_8Al_(13)Sn_3

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Rare Metals 2009年第5期28卷 491-493页

作者： HE Wei XIA Xiuwen ZHANG Jiliang HUANG Jinli LIU Yixin Key Laboratory of Nonferrous Metal Materials and New Processing Technology （Ministry of Education） College of Materials Science and Engineering Guangxi University Nanning 530004 China department of Physics and Electronic information science Guangxi Teachers Education University Nanning 530023 China

A new ternary compound La8Al13Sn3 was synthesized and studied by means of X-ray powder diffraction technique. The compound La8Al13Sn3 crystallizes in a hexagonal AlB2-type structure with space group P6/mmm （No. 191） and the lattice parameters a = 0.44919（1） nm and c = 0.43835（1） nm. The Smith and Snyder figure of merit for index, FN, is F30 = 197.3（30）. The Rietveld refinement for the crystal structure of the compound was carried out successfully. The liability R-factors of Rietveld refinement are Rp = 0.114 and Rwp = 0.148. The compound La8Al13Sn3 decomposes into LaAl2 with cubic structure and space group Fd 3m （227）, LaAl3 with hexagonal structure and space group P63/mmc （194）, and Sn at 720°C.

关键词： crystallography X-ray diffraction Reitveld method rare earth compounds

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思辨缺席症——我们该开什么“处方”

上海理工大学学报（社会科学版） 2011年第4期33卷 303-308页

作者：胡郑辉厦门大学嘉庚学院外文学院漳州363105 漳州师范学院外国语言文学系漳州363000

"思辨缺席症"确诊于1998年。12年来尽管各种"处方"与日俱增,然而,疗效不佳,痼疾难愈。究其原因,关键是宏观认识谈得多,可操作性措施提得少。要提高疗效,必须修改大纲、改革教学方法以及师资培训三管齐下,尤其要重视如何利用英语专业课... 详细信息

"思辨缺席症"确诊于1998年。12年来尽管各种"处方"与日俱增,然而,疗效不佳,痼疾难愈。究其原因,关键是宏观认识谈得多,可操作性措施提得少。要提高疗效,必须修改大纲、改革教学方法以及师资培训三管齐下,尤其要重视如何利用英语专业课程培养学生的思维基本功以及如何提高教师的思辨能力。只有这样才能"药"到病除。

关键词：思辨缺席英语专业教学改革

A Class of Iterative Formulae for Solving Equations

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Journal of Mathematical Research and Exposition 2010年第2期30卷 217-226页

作者： Sheng Feng LI1,2,3, Jie Qing TAN1,2, Jin XIE1,2,4, Xing HUO1,2 1. School of Computer & information, Hefei University of Technology, Anhui 230009, P. R. china 2. Institute of Applied mathematics, Hefei University of Technology, Anhui 230009, P. R. china 3. department of mathematics & Physics, Bengbu college, Anhui 233030, P. R. china 4. department of mathematics & Physics, Hefei University, Anhui 230601, P. R. china School of Computer & information Hefei University of Technology Anhui 230009

Using the forms of Newton iterative function, the iterative function of Newton’s method to handle the problem of multiple roots and the Halley iterative function, we give a class of iterative formulae for solving equations in one variable in this paper and show that their convergence order is at least quadratic. At last we employ our methods to solve some non-linear equations and compare them with Newton’s method and Halley’s method. Numerical results show that our iteration schemes are convergent if we choose two suitable parametric functions λ（x） and μ（x）. Therefore, our iteration schemes are feasible and effective.

关键词： Non-linear equation iterative function order of convergence Newton's method Halley's method.

Optimal Design of Neuro-Fuzzy Controller Based on Ant Colony Algorithm

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Optimal Design of Neuro-Fuzzy Controller Based on Ant Colony...

低潮中的反思——也论耗散结构理论在情报学领域中的应用

第二十九届中国控制会议

作者： ZHAO Baojiang department of mathematics,Mudanjing teachers college,Mudanjing Heilongjiang 157012,P.R.china

An adaptive ant colony algorithm is proposed based on dynamically adjusting the strategy of the trail information *** algorithm can keep good balance between accelerating convergence and averting precocity and *** results of function optimization show that the algorithm has good searching ability and high convergence *** algorithm is employed to design a neuro-fuzzy controller for real-time control of an inverted *** order to avoid the combinatorial explosion of fuzzy rules due to multivariable inputs,state variable synthesis scheme is employed to reduce the number of fuzzy rules *** simulation results show that the designed controller can control the inverted pendulum successfully.

关键词： Neuro-Fuzzy Controller Ant Colony Algorithm Function Optimization Genetic Algorithm Inverted Pendulum System.

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图书情报工作 1995年第6期39卷 23-25,29页

作者：李超平西南师范大学图书情报系重庆630715

剖析了耗散结构理论在情报学领域应用研究的现状,分析了该理论合理的应用方式及途径,并运用耗散结构理论的方法重新建立和讨论了科学文献增长的逻辑斯蒂方程。

关键词：耗散结构理论情报系统文献增长模型

Microwave Resonator Sensors for Grains Moisture Measurements

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Microwave Resonator Sensors for Grains Moisture Measurements

A New （t, n） Threshold Signature Scheme Withstanding the Conspiracy Attack

第一届国际测量仪器与测试自动化学术会议

作者： Zhao Qingling Jin Li ( Institute of science and Technology for OPTO-Electronic information Yantai University 264005 china) ( department of Computer Taiyuan teachers college Taiyuan 030012 china)

＜正＞This paper introduces the recent research and progress of microstrip and cavity sensors to measure grain moisture content. A miniaturized micro-strip ring resonator （MRR） 1 in.× 1 in. resonating at fro=10.27GHz, was used as a nondestructive moisture sensor for chickpea kernels and wheat grains for ease in loading and unloading. The change in the resonant frequency（ △fr） of the MRR is a measure of the amount of moisture in the overlaid kernel. The development of microwave techniques and a separate gas displacement method to measure the wet-mass, moisture content of single wheat grain kernels are described. The perturbation of the circularly symmetric TM010, mode inside a cylindrical cavity is used with a linear model to determine the single grain moisture content and wet-mass. Finally the analysis and the discussion for measurement results is introduced respectively.

关键词： Resonator sensors microwave grains moisture.

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A New （t, n） Threshold Signature Scheme Withstanding the C...

The 1st Chinese Conference on Trusted Computing and information Security

作者： XIE Qi, YU Xiu-yuan department of mathematics,Zhejiang University. Hangzhou 310027. Zhejiang,china: School of information and Engineering, Hangzhou teachers college. Hangzhou ,310012. Zhejiang, china Hangzhou teachers college, Hangzhou 310012, Zhejiang, china

＜正＞ A conspiracy attack is proposed to show that Wang-Li’s scheme is insecure, because any t or more group members can impersonate other t members to sign any message without holding the responsibility. To avoid t... 详细信息

关键词： cryptography threshold signature conspiracy attack identifier tracing

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在数字电路教学中引入现代EDA技术

物理实验 2004年第5期24卷 28-30页

作者：李雪梅乐山师范学院物理与电子信息科学系四川乐山614000

介绍了CPLD/FPGA器件的特点和应用范围 ,并以一个简单的十二进制加法器设计为例 ,介绍了在MAX +plusII开发软件下。

关键词： EDA技术数字电路教学数字逻辑电路设计加法计数器 VHDL硬件 CPLD/FPGA器件