Table of Content

15 October 2013, Volume 12 Issue 10

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Imputation Method Study with Missing Data in Random Experiment Design

LI Jie, ZHANG Xiao-Ling

2013, 12(10):  1-5. 

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In random experiment design, missing data often exist due to some reason. There are four methods to deal with the missing data：delete the missing data，mean imputation，formula imputation and Yate's imputation. It is an interesting question to compare the four methods. This article presents how to use simulation study to carry out this comparison. First, built a 4×5 random experiment design; m denotes the numbers of missing data which equals from 1 to 6; Second，find out all missing values' location combinations. For each combination, these 4 methods are executed separately, and standard error, square R and adjust square R for each method are recorded. Last, the simulation study shows Yate's inputaton method performance is better than other 3 methods. The real example also
proves simulation results.

Study of Algorithm for Pseudo-Random Number Generator Based on Hybrid Chaos

ZHANG Li-Na, HE Yuan, DOU Qiong-Ying, LUO Gui-Lan, ZHU Min, CHEN Rui-Xu

2013, 12(10):  6-8. 

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In order to overcome the disadvantage of the common chaotic maps for generating pseudo-random number, this paper has analyzed advantages and disadvantages of commonly used methods of chaotic map, and then proposes a hybrid algorithm based on Logistic chaotic mapping and Tent chaotic mapping. The algorithm has a better performance in generating pseudo- random number through analysis and testing.

Application of Matlab in Replacement Algorithm for Finding All Candidate Keys

WU Rong-Hai, FAN Xiao-Mei

2013, 12(10):  9-13. 

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The candidate keys play an important role in the decomposition process and normalization process for relational schema. In　the paper, a replacing algorithm for finding all candidate keys of relational schema R (U, F) has been implemented in Matlab. Finally, it　was verified by the example that was complied and simulated in Matlab. The result of simulation is easier to understand and show the　speediness, efficiency, correctness of the M-functions.

Mobile Intelligent Tourist Guide System Based on Cloud Computing

YANG Jian, YANG Deng-Qi, DU Ying-Guo

2013, 12(10):  14-18. 

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At present, the information resources of local tourism scatter and become many isolated information islands, and no perfect mobile intelligent navigation system platform exists for tourists and tour guides. Aiming at addressing this issue, this paper proposes a model that builds the backend information storage and processing center by using cloud computing and takes the mobile communication network, the internet of things, the Internet as the core technologies of the front-end display terminal and user interface（UI）,which supports the tourism information with high performance data processing, data mining and intelligent recommendation technology.With this model, a mobile intelligent tourism guide system can be established based on cloud computing to provide intelligent tourism
services for tours and tour guides. A case analysis shows that: the proposed model has good applicability and scalability, and can help make a more efficient implementation of tourism management and monitoring.

A Study and Analysis on the Model of the Cooperative Communication Based on LTE-Advanced Technology

ZHANG Mei, LUO Gui-Lan

2013, 12(10):  19-22. 

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For the high-performance of the LTE-Advanced, the advantages of cooperation communication in increasing coverage , the limitations of MIMO technology in mobile terminal, a cooperation communication system model based on LTE-A described by the expansion channel model（SCME）method was provided. In Case3（suburb）scene defined on the 3GPP, for Rican fading propagation environment, the performance of cooperative communication system model were studied. The parameters of this communication system model such as the number of relay node in per cell, the location of the relay node, and the transmit power allocation were all considered. And their impacts on system performance were simulated. And, the simulation results show that: the cooperative relay technology
using in the communication system model based on the LTE-A can achieve better performance.

The Importance of Binaries in Stellar Population Synthesis Studies

LI Zhong-Mu

2013, 12(10):  23-26. 

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Observations show that most stars are in binaries, which indicates that binaries should be taken into account in stellar population synthesis studies. This paper reviews the importance of binaries in the studies of stellar populations. The effects of binaries on the spectral energy distributions, line strength indices, colours, colour-magnitude diagrams, parameter determinations, and star formation histories are discussed. The review shows that binaries are very helpful for the explanations of spectra and colour-magnitude diagrams of galaxies and star clusters, and they also affect the determinations of many important parameters. Therefore, the inclusion of binaries is a natural trend for future stellar population studies.

The Speech Recognition Method of the Bai's Language Based on HTK

ZHANG Ling-Tong

2013, 12(10):  27-31. 

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Using computer to identify the speech sounds of minority nationality is an important means to protect and inherit the national culture. The Bai is one of the important minority nationalities in the southwest border of the motherland. It has a long history and the splendid culture. In order to implement human-computer interaction in Bai' s language, a sound recognition method for Bai’s language based on HTK is proposed. According to characteristics of Bai's language, this method structures the HMM model through using phonemes as the basic units and using the HTK tool to extract the speech feature parameters of 39-dimensional MFCC. Viterbi algorithm is used to train the model and match to achieve speech recognition of Bai's language. The experimental result shows that the recognition system can obtain a high recognition rate（up to 93.3%）and also provides a useful reference for the speech recognition research
on minorities' languages.

Preliminary Study on the Copper, Zinc Heavy Metals of Carassius auratus from Datunhai Lake Reservoir

DU Min, LIU Yan-Hong, NIU Bao-Zhen, YU Jian, QUAN Shu-Zhou

2013, 12(10):  32-34. 

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In this study, we analyzed the concentrations of heavy metals of Carassius auratus and water from Datun Lake, Yunnan province. By using the microwave digestion method, though the TAS-990 atomic absorption spectrophotometer,zinc, copper, two kinds of heavy metal contents of tissues of Carassius auratus were detected. The results showed that the heavy metals concentrations of Carassius auratus were: zinc（10.9±3.4）mg/kg, copper（3.51 ± 0.25）mg/kg, respectively. Heavy metal concentrations of water from Datun Lake were: zinc（13.4 ± 2.28）mg/kg, copper（9.8 ± 0.72）mg/kg respectively.

A Comparison of the Fauna on Acridoidea and Pyrgomorphoidea from Yunnan and India

MAO Ben-Yong, LI Chao, LI Miao, YANG Guo-Hui

2013, 12(10):  35-40. 

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Up to now, 3 families, 14 subfamilies, 92 genera, 225 species（subspecies）of Acridoidea and Pyrgomorphoidea, and in which 20 endemic genera（accounting for 21.74%）and 138 endemic species（61.33%）are known in Yunnan, while 4 families, 20 subfamilies, 158 genera, 337 species（subspecies）, 37 endemic genera（23.42%）and 127 endemic species（37.69%）in India. The fact indicates that the two regions have a special and complex fauna composition, and the specificity of Yunnan is more obvious. Richness analysis shows that grasshopper richness of Yunnan is larger than those of India in genus and species levels. Faunistic similarity analysis shows that the two regions have a certain relationship, while retaining their own uniqueness; the fauna components in common are mainly Oriental, then the Ethiopian, while the minimum is Palaearctic component. The species exchange at genus level between Yunnan and India was mainly through the following three routes: the Indo-Malayan subrealm + Indo-Chinese subrealm - Indian subrealm,the Ethiopian realm - Indian block（or Cimmerian block）- Indo-Malayan subrealm + Indo-Chinese subrealm, and the Ethiopian realm - Eurasia - Oriental realm.

Structure Homology Modeling of Nematode-Trapping Fungus Serine Protease PII

YANG Li-Quan, SANG Peng, LI Zhen-Gui

2013, 12(10):  41-43. 

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In this article, structural model of Nematode-trapping fungus serine protease PII is constructed and analyzed. The results show that the structural model of PII has the common α/β scaffold characteristics of subtilisin-like serine protease. The catalytic triad residues Asp, His and Ser and the component of oxianion hole residue Asn are completely conserved. The structural model has an overall highly rigid globular fold architecture and do not have disulfide bond. The results of this article will provide a solid basis for further studying the relationship between structure and function of PII.

The Separation and Screening of α-amylase Strain in Soil

YANG Yang, LIU Bi-Qin, ZHANG Fa, LIAO Guang-Hui, YANG Xiao-Yan

2013, 12(10):  44-46. 

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Objective: To choose the strain with higher activity in the production of α-amylase in the soil and preliminary test its enzymatic property. Methods: The optimal reaction temperature, optimal pH value in the production of α-amylase was tested after the strains with higher activity were separated with the methods of selective separation, iodine test, morphologic detection and determination of enzyme activity. Results: The fourth strain was highest in activity among four of producing α-amylase strains. Its optimal reaction temperature was 50-60 ℃ and optimal pH value was 6.2. Conclusion: A strain which has high activity in producing α-amylase bacillus is separated and its α-amylase is medium temperature amylase with the optimal pH value of 6.2.

The Determination of Trace Elements in Three Kinds of Tea from Different Places

XU Rui, LIU Shou-Long, LIU Zhi-Yu, JIANG Chang-Peng, YI Xue-Feng, ZHAO Jiang, CHEN Hong-Yun

2013, 12(10):  47-49. 

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Objective: To determinate the content of the trace elements（Fe, Mn, Zn, Cu）in Yunnan Pu'er tea, Hebei jasmine tea,
Guizhou Kuding tea. Methods: Nitric acid and perchloric acid（4+1）were used to disintegrate the ground sample of tea. Flame atomic absorption spectrometric method was used to determine four trace elements content in three kinds of tea. Results: The content of trace elements（Zn, Fe, Cu, Mn）in three districts is respectively that Yunnan Pu'er tea: 43.43 μg/g , 57.28 μg/g , 33.14 μg/g , 135.67μg/g , Guizhou kuding tea: 19.91 μg/g, 32.98 μg/g, 9.74 μg/g, 77.08 μg/g, Hebei Jasmine tea: 36.09 μg/g, 84.37 μg/g, 28.52 μg/g,220.08 μg/g . Conclusion: All three kinds of tea contain rich trace elements and there are differences about the content of trace elements in different areas.

Screening and Determination Degradation Ability of Organic Phosphate-solubilizing Bacteria in Sewage

GUO Le, SHEN Yuan-Ying

2013, 12(10):  50-52. 

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Organophosphorus solid medium was adopted to isolate strains that were capable of solving organophosphorus from sewage.14 strains of organic phosphate-solubilizing bacteria were obtained by purification. The dissolved phosphorus transparency circle could be determined through plate method, and 4 phosphate-solubilizing bacteria were selected to determine quantitative degradation ability by plate method. Phosphate-solubilizing peaking rate of OPB8, OPB17, OPB15, OPB19 strain were 107.9%, 135.1%, 31.8% and 249.2%. Then, the water-soluble phosphorus concentration dropped in the nutrient solution, of which OPB15, OPB19 strain of water-soluble phosphorus concentration in the nutrient solution dropped by 72.2% and 72.2% respectively.

Detection of Total Bacteria and Coliform in Drinking Water Resources of Cangshan Huadianba in Dali

ZHANG Fa, ZHOU Ya, HE Dong-Yi, LI Xiao-Yan, YANG Xiao-Yan

2013, 12(10):  53-55. 

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Objective: To detect the total count of bacteria and coliform bacteria of the three drinking water resources of Longtan, Xipo and Farm headquarters of Cangshan Huadianba. Methods: Using the methods of plate culture count and multiple-tube fermentation technique to detect the total count of bacteria and coliform bacteria in the three drinking water sources respectively. Results: The bacteria and coliform bacteria were not detected in the water resource of Longtan, but a large number of bacteria and coliform bacteria were detected in the drinking water resources of Xipo and Farm headquarters. The total count of bacteria and coliform bacteria was more than 300/mL and 230/L respectively in the drinking water resources of Xipo. It was 189/mL and 230/L respectively in the drinking water resources of the Farm headquarters. Conclusion: The water drinking resource in Longtan meets the requirements of current national standards for drink water (GB5749-2006), while two other drinking resources do not meet this standard.

Study on Development of Flavored Jelly of Red Date and Honey

FU Xiao-Ping, DONG Wen-Ming, ZHAO Hai-Zhou, FAN Jiang-Ping

2013, 12(10):  56-57. 

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With red date and honey as a major raw material, the jelly was developed with beautiful color, unique flavor and health
function. The processing technology of red date and honey jelly was investigated through orthogonal experiment. The result showed the optimum technology was red date 65%, gelling agent 0.8%, honey 3%, protein sugar 0.1%，citric acid 0.2%. The gelling agent was xanthan gum: agar from 1：1 mixtures. In the condition, the best product with a pure color and delicious taste was obtained

The Composition and Distribution of Mosquitoes in Dali University Campus

WANG Cheng-Huang, ZHAO Li-Qiong, XIN Yan-Jiang, HUANG Xiao-Tao, QIU Wen-Jun, GAO Chun-Yan

2013, 12(10):  59-61. 

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Objective: To investigate the composition and distribution of mosquitoes in the Dali University campus and provide epidemiological evidence for the mosquitoes research and the prevention and control of mosquito-borne diseases in Dali state. Methods:The survey was conducted in both Gucheng campus and Xiaguan campus of the Dali University. The mosquitoes were collected at breeding place for mosquitoes and dense population areas. The UV light-traps were used to capture nocturnally active adult mosquitoes overnight. The collected insects were classified, counted and statistically analyzed. Results: 619 mosquitoes were collected and identified as 11 species of 2 genera. The two genera were Culex (7 species) and Anopheles (4 species), respectively. Among them, Cx. qsuinqueascitus was the dominant species (87.72%), and Cx. tritaeniorhynchus was common species and the other species were relatively fewer. Conclusion: Cx. qsuinqueascitus is the dominant species in the Dali University campus.

The Prospect about the International Exchange and Cooperation of Faculty of Sports Science in Dali University

WANG Hong, LU Guo-Tian, LIU Wei-Hong

2013, 12(10):  62-64. 

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Cultural globalization is becoming more frequently with the development of economic globalization, and the internationalization of higher education is an irresistible trend of the world today. Dali University has made brilliant achievements by seizing the opportunity to implement the "going out" strategy, and carry out international exchanges and cooperation actively. The faculty of Sports Science follows this trend through the modules of teacher and students’exchange, academic exchanges, cultural exchanges and events exchange to promote the education and teaching of our faculty, and to enhance the school's strength, built a good basis for better international education.

A Contrastive Study on Extracurricular Physical Exercises of College Students in China and Thailand

WANG Jian-Chao, WANG Sheng-Wei

2013, 12(10):  66-68. 

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This paper attempts to analyze extracurricular physical exercises of college students in China and Thailand by using the method of literature study, questionnaires, expert interview, and mathematical statistics. The following conclusions are drawn after analysis: the number of Thai students who hold positive attitudes towards extracurricular physical exercises is larger than that of Chinese students. More Thai students prefer to take part in extracurricular physical exercises more than 30 minutes each time. Thai students have more diversity in choosing forms and contents of extracurricular physical exercises and have stronger sports consumption awareness than Chinese students. The investigations reveal that lack of sports field and facilities, and lack of guidance are the first two factors influencing and constraining extracurricular physical exercises for Chinese students, while for Thai students, lack of time under
study pressure and lack of sports field are major constraints. According to the investigations and analyses, some recommendations are put forward to improve extracurricular physical exercises of Chinese college students. Chinese universities should attach importance to the construction of sports field and facilities, strengthen physical education in fundamental education stage, construct the physical education pattern of the integration of PE class and extracurricular physical exercises and optimize campus sports culture environment.

Affirmatively Cooperating with Dianxi Counterpart-assistance Work of Education Department,
Effectively Enhancing the Educational Strength of Dali University

YANG Rong-Xin

2013, 12(10):  71-76. 

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Under the influence of the poverty alleviation of Dianxi region implemented by the educational department, Dali University participated in the coordination work, built leader's group, made work plans and played a role in the University-Enterprise Cooperation Program. Based on these, Dali University will organize the counterpart-assistance meeting and relevant investigation work, and mediate some problems in the counterpart-assistance work. Through the principle of "investigate deeply and implement responsibility and enhance coordination", Dali University will reach the goal of promoting educational reform and enhancing educational strength.

Exploration in Teaching of Finite Element Experiment Course

HUANG Peng-Zhan

2013, 12(10):  77-80. 

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The finite element method is an important numerical method for PDEs, which has many significant ideas and techniques.Hence, the students will face a lot of difficulties, especially, in the course of the finite element experiment. So, how to make the students adapt the learning? And how to guide them to use the computer to solve the PDEs? In this paper, the author explores the teaching of finite element experiment course, based on his personal teaching practice.

The Teaching Design of Basic Education Curriculum for College Architecture

YANG Rong-Bin, LI Ru-Heng, HU Yong-Mao, LI Zhong-Mu

2013, 12(10):  81-85. 

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Under the background of globalization in local college to serve the local economic development, how to develop the teaching design of architecture education curriculum based on a central issue is in the discussion. The teaching design should be based on the guidance of cultivating the talents in architecture to design the learning activities, learning motivation system, and education technology in basic education curriculum, which are good to students’quality education, professional skills and innovation ability training of diversified education. To improve the ability of teachers and students to do teaching practice in the basic education can promote the teaching reform and the learning quality and efficiency, which can improve quality of education and talents cultivation.

Reform and Practice for Microbiology Experiment Teaching Methods

YANG Xiao-Yan, LI Yun-Xia, YANG Lin, LIU Wei-Hong, SU Hong-Yan

2013, 12(10):  86-89. 

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In order to embody the practicality and application of microbiology experiment in current situation, stimulate students' interest, train their manipulative skills, and improve their abilities of problem solving and analyzing, a reform on course content, teaching methodology and evaluation system has been employed. The trial on students majoring in biosciences or biotechnology shows a positive effect and has accomplished the teaching goals.

A Feasibility Study of the Introduction of Duan Weizhi into Martial Arts Teaching in Dali University

LI Yun-Qing, SHI Hong-Qiang

2013, 12(10):  90-93. 

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Martial arts, with extremely widespread mass base, is valuable cultural heritage accumulated and enriched by Chinese in the long-term social practice, which is one of the nation's excellent culture heritage in China. Its introduction into colleges and universities in the 1980s plays an important role in the popularization of martial arts. Along with the development of the era and the impact of foreign culture, the existing teaching content of martial arts can not meet the needs of college students. Martial arts Duan Weizhi is an important means and carrier of martial arts inheritance, promotion and popularization. College martial arts education development in China highly agrees with the reform of martial arts Duan Weizhi. This paper has made an analysis of Dali college martial arts teaching and requirements of martial arts Duan Weizhi, proves that it is necessary to introduce Duan Weizhi into martial arts teaching, and then puts forward corresponding suggestions for its implementation.

The Research about Sports Lessons Included in the High School Athletics Professional Teaching System

LU Guo-Tian, DUAN Yi-Mei, YANG Xing-Mei

2013, 12(10):  94-96. 

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Through the method of literature, expert interviews, field survey, the study is about the sports lessons included in high
school athletics professional teaching system. Aiming at improving the teaching ability of P. E. teachers and the employability of sports graduates, the school should add the sports lessons to the physical education professional courses, the teachers' teaching and research activities, and the educational practice of physical education students.