Table of Content

01 April 2011, Volume 10 Issue 4

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Periodic Solutions for a Class of Second Order Hamiltonian Systems with Damping Term

2011, 10(4):  1-6. 

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The purpose of this paper is to study the existence of periodic solutions of a class of second order Hamiltonian Systems ith damping term. Two new existence theorems are obtained by the minimax methods in critical point theory.

Solution Structure and Promotion of the Linear Equations Based on Generalized Inverse Matrix

KANG Dao-Kun, CHEN Jin

2011, 10(4):  7-11. 

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If the linear equations have solutions then．In this paper，solutions of the linear equations are expressed by generalized inverse matrix and generalized to the case of matrix equation．

Graphic Applications on Fibonacci Numbers

YANG Li-Min, YANG Zheng-Liang

2011, 10(4):  12-16. 

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On Fibonacci numbers，there exist some beautifu1 and value conclusions．Here many results are stated．In this paper we obtain the formula of all-factors of the special graph G by means of analyzing method of graphic components and Fibonacci number．By the relation between A(G)and hosoya index of the G without subgraph the relationship betweenandcould be moved to Hosova index for the special graph G．Finally．some special examples for Hosoya index are derived．graphic applications Oil Fibonacci numbers are pictured．For Hosoya index．Counting theory of S 。。factors has interesting．value and substantial advance in its field．Hosova index for Chemistry is presented mathematical value by graph theory．

Application of Substitution M ethod in M athematical Problem Solving

HE Hong-Yun

2011, 10(4):  17-20. 

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Substitution method is frequently used to solve mathematical problems in middle school teaching．Researches into partial substitution，triangular substitution and mean substitution are important parts of mathematics teaching．By using substitution methods， problems could be transformed and solutions could become clear．

An Improved BNS Search Algorithm of Internet Forum

LUO Gui-Lan, DUAN Fa-Mei, ZHANG Li-Na, ZHU Fan, LIU Chao-Ming

2011, 10(4):  21-25. 

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An improved BNS search algorithm is proposed based on a variety of search algorithms and spider search algorithm of anstructured P2P networks in the paper．The algorithm is combined with breadth—first search algorithm and non—greedy search algorithm．By its performance analysis and application testing in the campus BBS of Dali University，the results show that BNS algorithm is superior to BFS and NGS algorithm in some performance as returns，relevancy and precision．In short，the efficiency of the network is improved with BNS algorithm．

Research and Development of the College Teachers Personal Homepage Based on W eb Text M ining

LI Jun-Hua

2011, 10(4):  26-29. 

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This paper elaborates the importance and necessity of building college teachers personal homepage，and then analyzes the urgency of building college teachers personal homepage OH the basis of web text mining. Finally，the paper expounds the design and implement of the system from such aspects of architecture，function module and key technologies．

Scientific Studies on the Bronze Swords Unearthed in the Ancient Ailao Region in Yunnan Province

Chao-Yun-Xia, LI Xiao-Cen, Wang-Li-Rui

2011, 10(4):  30-34. 

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In order to study the production process of the bronzes in the ancient Ailao area，several samples of bronze swords from Warring States to the W estern Han Dynasty were selected，which were unearthed in the Baoshan，western Yunnan．The samples were analyzed by the metallographic microscope and SEM．The results showed that these swords were made of copper—tin alloy，and the production processes were classified in two types：cold working after casting and cold working after hot forging．Coated iron process was utilized in one sword produced by cold working after casting，the shape of this sword was much different from the others，which means that the production processes of the bronze swords varied widely and the swords belonged to different periods and different ethnic artisans． This paper was valuable for the study of metal technology in ancient Ailao area and the technical and cultural exchanges of ancient Ailao area with surrounding areas．

Design of M onitoring and Protection System Based on Power Harmonics and Negative Sequence Current

ZHANG Ling-Tong

2011, 10(4):  35-37. 

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With the limit requirements of harmonic and negative seq~3ence CuiTent of national and electricity se~or，as wdl as the security and quality of the ph0sph0rus—based internal power supply system，the monitoring and protection system was designed to detect power harmonic and negative sequence current produced in process of phosphorus furnace operation using harmonic filtering to match the overall drop in power factor compensation．The data of harmonic and negative sequence current was collected and anal7zed by the
data acquisition station，and results of the analysis were transmitted through the network to the head monitor and operation station of overall drop．By the data，the monitoring and protection system can monitor power harmonic and negative sequence current and protect power supply system．

Shooting Method for Estimating Ho Energy Eigenvalue

2011, 10(4):  38-40. 

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The paper estimates the eigenenergy of one dimension Harmonic Oscillator via shooting method and computational software Mathematica，and makes it a new way of CAI for teaching Quantum Mechanics．

Determination and Treatment Methods of Cr(VI)in College Laboratory Waste Water

2011, 10(4):  41-42. 

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Abstract]Chromium Cr(VI)is a kind of heavy metal which is harmful for the enviroment，therefore，the waste liquid containing Cr(VI)in the laboratory should be treated for recycling instead of being discharged directly．In this paper，we applied the indirect iodometric method to determine the concentration of Cr(vI)with chemical reduction using ferrous sulfate heptahydrate，and investigate the elfeet of acidity condition，reductant quantity and reaction time of this reducing agent．The results showed that the concentration of Cr(VI)after treatment with ferrous sulfate heptahydrate in a certain condition meet the discharge standard．Ferrous sulfate can be used as
reducing agent in recycling of waste liquid contained Cr(VI)in the laboratory．

Development and Prospects of M olecular-based Magnetic Materials

2011, 10(4):  43-47. 

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This paper described the related issues of molecular-based magnetic materials in recent years．The classification and function of molecular magnets were introduced．Focuses on the current molecular—based magnetic materials in some of the typical single-molecule magnets，the research history and development trends were reviewed．At the same time，the hot spots of molecular magnetic materials were introduced．The prospects of molecular-based magnetic materials were also looked forward．

Description of a New Species of the Genus Clubiona from Cangshan Mountain of Yunnan Province(Araneae：Clubionidae)

2011, 10(4):  48-50. 

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The present paper deals with a new species of the genus Clubiona collected from the Cangshan Mountain in Yunnan Pr0vince，China．This new species was described and illustrated under the name of Clubiona bucera sp．nov．．All type specimens are deposfled in the School of Agriculture and Biological Sciences in Dali University．All measurements were given in millimeters．

MCN Efects of the Heavy Metal ions Pb and H on the Viciafaba Root Cell

2011, 10(4):  51-53. 

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Micronucleus effects of the heavy metal ions Pb and Hg on Viciafaba root cells were investigated with different eoncentrations of lead acetate and mercuric chloride．The results showed that within certain range of concentrations, both Pb²⁺ and Hg²⁺ can induce high mieronucleus frequency (MCNF)of Vicia faba root cells with a dose dependent manner，however，MCNF was found not to increase in a linear pattern with high Pb²⁺ and Hg²⁺ concentration．So Vieia ba could be used as the material for fast detection of the genotoxicity of Pb²⁺ and Hg²⁺ in enviroment．

Change Trend Analysis of the Temperature，Precipitation and Runof in Longchuanjiang River Basin in the Recent 50 Years

2011, 10(4):  54-58. 

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According to the measured data from some meteorological and hydrological stations，and basing on the methods of mean value，linear trend and cumulative statistics from the equal，the temperature，precipitation，interannual and annual runof variations of Longchuanjiang River Basin during the past 50 years from 1960 to 2009 were statistically analysed．And non—parametric Mann-Kend—al test was used in significance test to examine the change trend of climate and hydrological factors．The results showed that the mean annual temperatures in the study area had risen，especially since the 1980s；and the warming of the low temperatures had significantly influenced the mean annual temperatures．The results also showed that the mean annual precipitation in the area was rising obviously， especially significant in the 1 990s．The annual distribution of precipitation was regularly different according to seasons；and the annual distribution of runoff showed a weak decreasing．The study indicated that human activities were important factors in some meteorological and hydrological changes．

Boletus speciosus Forst：A Research Review

2011, 10(4):  59-60. 

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The study of Boletus specios~，including its morphological characteristics，cultivation and bioactive products，was summarized in order to provide a basis for further development and utilization．

Influence of Traditional Health-keeping in Sports on College Physical& Health Education

2011, 10(4):  61-64. 

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After literature researches，the paper studies the enhancement function of traditional health—keeping in sports on college physical and health education．It holds that traditional health—keeping in sports could promote students overall qualities through various forms of regulating body，mood and breath by combining health thought with sports exercise．Traditional health—keeping in sports could enrich college physical education，form students regular exercise habits，and help students understand the law of inner activities and its mechanism so as to reach the goal of“Three Dimensional Health”in body，mentality and society．

Influence of Development Evaluation in Athletic Course on College Students'  Mental Health

2011, 10(4):  65-66. 

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Objective：To explore the influence of evaluation rearm in athletic coarse on college students mental health．Methods：Classes attending athletic course were selected randomly as the experimental group and control group，and self-rating symptom scale一90 was used for test．Results：The detection rate of psychological problems in the experimental group was obviously lower than that of the control group．Conclusions：The development evaluation method used in the experimental group was beneficial to college students menta1 health．

Renew and Analysis of the 42nd W odd W omen s Gymnastics Championship

2011, 10(4):  67-71. 

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To enable the Chinese Women’s Gymnastics Team to prepare for the 2012 Summer Olympics and achieve the strategic objectives，through comparative method and analytic induction，this paper，basing on literature and video，made a comparative study of the top eight in women s team semifinals，all-round finals and apparatus finals of the 42nd World Women s Gymnastics Championship respectively．The results showed that the Russian Women’s Team had outshone others；as for individual events，each team had its strong points．The competition will be fiercer for 201 2．Th e Chinese Women’s Team should strengthen psychological training，and develop their traditional advantages and focus on weak projects．

Constraints and Countermeasures of Commercialized Track& Field Events in China

2011, 10(4):  72-74. 

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The problems rising from the commercialized track and field events held in the past decades in China are studied and analyzed．Then，drawing on the advanced hosting experiences of track and field powers，the paper puts forward some suitable eountermeasures for the commercialized Chines track and field events．

A Case Study：Exploration of Tibetan Folk Physical Culture in Ganzi Tibetan Autonomous Prefecture in Sichuan
— — Ganzi Tibetan Prefecture in Sichuan

2011, 10(4):  75-78. 

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Flourished and with a long history，folk sports contains great potentials in Ganzi Tibetan Prefecture．Under the global impact of popular western athletic sports，the minority traditional folk sports tend to be marginalized，stagnated，protected and lost in China．With various methods like field research，documents and expert interviews，this paper digs and sorts various kinds of folk sports in Ganzi Tibetan Prefecture SO as to develop and inherit the folk physical culture．

Status Quo and Countermeasures of Physical Education in Border Rural Middle Schools

2011, 10(4):  79-81. 

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The current situation of physical education in rural middle schools in the border areas are not satisfying．Old teaching mode has constrained the new curriculum reform and hindered the process of quality education．Therefore，the paper suggests new teaching mode be explored，software and hardware for physical education be constructed，physical education evaluation system be improved SO as to accelerate the quality of physical education in border rural middle schools and promote the comprehensive development of students overall qualities．

Reading，W riting，Listening and Speaking Ability Training in M athematics Teaching

2011, 10(4):  82-84. 

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The paper analyzes the importance of reading，writing，speaking and listening to modern people．Then，by analyzing four segments of G．Polya S solving mathematical problems，the paper discusses the training of reading，writing，speaking and listening abilities in mathematics teaching．

Classroom Learning as the Major Route to Achieve Training 0bjective

2011, 10(4):  85-87. 

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The paper points out the problems arising currently from the classroom learning in Dali University，and discusses，on the basis of practical teaching experiences，the methods of effective learning and ways of cultivating students capabilities and qualities so as to realize training objectives．Besides，the paper proposes some theoretical and practical suggestions．

Construction and Practice of Applied M odel Curriculum of Medical Physics

2011, 10(4):  88-90. 

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Applied talents training model curriculum is a comprehensive system．In this paper，the goal and location of medical physics，coursee structure，teaching materials and methods，as well as teachers team construction were discussed to improve the teaching quality and the ability of medical students in applied model curriculum of“Medical Physics”．

Matrix Integral Inequality and its Applications

2011, 10(4):  91-95. 

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Two integral inequalities in matrix consisted of positive integrable and their applications were discussed based on arithmetic mean and geometric mean．

Solutions to Question 20 of Mathematics in 2010 College Entrance Examination (National Volume II)) for Science Students

2011, 10(4):  96-100. 

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This paper mainly inquires into and analyzes va~ous solutions to question 20 of mathematics in 2010 College Entrance Examination(national volume II)for science students．By showing various solutions to this question，the paper elaborates how to solve such questions of probability statistics，and provides a useful reference to college entrance examination for students．