Journal of Dali University

A Feature Gene Selection Method Based on Traversal Gene Combination

LI Jie

2015, 14(6): 1-4.

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Feature gene selection is a hot issue. Under the consumption that cancer is caused by one or some genes heteromorphosis,
this article starts research from two genes combination, using Logistic regression method on all possible combinations with 2 genes with
prediction accuracy and AIC as the evaluation criteria. Based on the evaluation of all stimulation results, we obtained the best gene
combination（X55187, D14812）. Meanwhile, we tested and verified the stability of this best combination（X55187, D14812）with
leave one out cross validation. At last, we analyzed and compared the frequencies of 640 pairs gene combination which prediction
accuracy was more than 90% with former studies. The result shows that prediction accuracy is not high along with the higher frequency
gene combination.

Two Necessary and Sufficient Conditions for Determining the Independence of Continuous Random
Variables

Wang Fanbin

2015, 14(6): 5-7.

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For two-dimensional continuous random variables（X,Y）, two independent necessary and sufficient conditionsare obtained
based on the joint density function and the joint distribution function, and the application is also given. At last, the results are
generalized to（X1, X2, ..., Xn） case of multi- dimensional random variables, and two independence of necessary and sufficient
conditions for determining（X1, X2, ..., Xn）independence are given. The results improved the original way and made continuous random
variables independent judgment easier.

The Distribution of Characteristics of Shock Model of Time Interval Obeying the Binomial Distribution

Ma Ming, Lu Wan, Ji Peiyu

2015, 14(6): 8-10.

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This study did a research on a type of the random shock model. In the case of time interval of random shock model obeying
the binomial distribution, this study researched the three indicators: the arrival time of shock, the total number of shocking time at any
time, and if the shock of time reached the frequency and found the shock arrival time, the number of shocking time, and the probability
distribution of the chance of shocking at any given time.

The Structure of Two Types of Semigroups Relating to Regular Element in Dn

Zhou Shaoyan, Zhang Chaoyuan

2015, 14(6): 11-12.

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This paper investigates regular elements which is closely related to idempotent, and gets the structure of regular semigroup
and inverse semigroup which are closely related to regular element in.

Research on Prediction Method of Ecological Environmental Data

Luo Guilan, Zhang Mei,Feng Libo,Deng Shourong, Li Yu

2015, 14(6): 13-17.

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Large scale ecological environmental data processing and statistical analysis results can provide important bases for
environmental protection and prediction, the analysis and prediction method become the research emphases in data processing. In this
paper, based on the classification and comprehensive data processing of magnanimous ecological environment data, a prediction model
of ecological environment data is established based on dynamic and two exponential smoothing method of time series. Aiming at the
real- time variation of ecological environment, the dynamic optimization process of static parameters is realized by using two
exponential smoothing methods. Taking the ecological environment data of Dali, Yunnan as the sample, through the simulation test and
the model analysis, its results verify the applicability and accuracy of the model.

A Threshold Signature Scheme Based on CL-PKC without Paring

Yang Dengqi, Yang Jian

2015, 14(6): 18-22.

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Certificateless cryptography based on bilinear pairings resolves the problems of complicated certificate management in the
Public Key Infrastructure （PKI） and inherent key escrow problem in the Identity- Based Cryptography （IBC）. Certificateless
cryptography without pairing eliminates time- consuming bilinear pairings and further increases the efficiency of certificateless
cryptography without losing safety. Threshold signature is an extension of the standard digital signature, in which several signers are
required to provide signature service cooperatively for the same message. Based on secret sharing without a trusted party and
certificateless cryptography without pairing, this paper proposes a certificateless threshold signature scheme without paring and trusted
center, which can be adopted in distributed systems without trusted server. Analysis shows that this scheme is secure and efficient and
does not rely on trusted center.

The Structure and Implementation of the Web Service in M-learning System under Android OS

Yang Jian, Zhang Xiaoling, Yang Dengqi

2015, 14(6): 23-27.

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In mobile learning system, providing an efficient information interaction method between the client and the server is one of
the most important problems to be solved. Under the condition that the mobile OS is Android and the Java EE application service is
located on the server, this paper puts forward to create Web Service based on Java EE application in the server by using Apache CXF
framework, which aims to achieve the information interaction between the mobile client and the server located on PC. By changing the
framework configuration file settings, the system realizes the interaction between the CXF framework and Java EE control framework-
Spring, and then provides efficient and high scalability Web Service for the mobile client.

The Application Research of Ward System Clustering Method in the Analysis of Rural Residents' Income

Chen Jiangli

2015, 14(6): 28-32.

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Ward system clustering method is a clustering method using deviation square method for calculating distance. This paper
clusters the net income of rural residents in the various regions in China with Ward system clustering method, uses Matlab simulation
to establish system clustering tree, clusters various regions into different region classes, and provides the necessary decision support for
the next research work.

Study on the Calibration of Robot Position and Posture Based on Binocular Vision Technology

Wu Nianxiang, Yin Weimin, Zou Huadong

2015, 14(6): 33-36.

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In this paper, the CMM mathematical model of binocular stereo visual sensor has been proposed for the measurements of
the robot position and posture. Matching the related feature points, three-dimensional coordinates of feature points is obtained by using
the least squares method. This study establishes the matrix relationship between the robot base coordinate and the workpiece
coordinate utilizing establishment and solution of the linear equations of external position and posture. This paper confirms the
homogeneous coordinate transformation matrix relationship between the workpiece and the vision sensor coordination when the robot is
in any position and posture through the target method. The experimental results show that the linear method for solving robot external
posture is feasible without the impact of noise, and it can meet the accuracy requirements.

Application of Gabor Filter in Fingerprint Enhancement Algorithm

Chen Jing, Zhang Su

2015, 14(6): 37-41.

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In the process of automatic fingerprint identification, fingerprint image enhancement plays a key role. Based on the texture
characteristics of fingerprint ridges and Gabor filter's quality in directivity and frequency selectivity, the application of Gabor filter in
fingerprint enhancement algorithm is studied and the results show that it can improve the efficiency of automatic fingerprint
identification.

Determination of Tetracyclines Residue from Animal-derived Food in Xiaguan, Dali

Lu Yuehong, Luo Kaimin, Wang Guangting, Lyu Rongcong, Sun Huiyuan, Xiong Fahui

2015, 14(6): 42-44.

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Objective: The tetracyclines residue in fresh pork, chicken, beef, fish and their liversin Xiaguan, Dali were detected in
order to monitor and provide the theoretical basis for animal-derived food and food safety for consumers. Methods: The samples were
tested by High Performance Liquid Chromatography（HPLC）in accordance with the provision of GB/T 5009.116—2003. Results:
Oxytetracycline（OTC）, Tetracycline（TC）and Chlortetracycline（CTC）residues in the randomly selected samples have not been
detected. Conclusion: There is no tetracyclines residue in this batch of animal- derived food which was selected randomly from
Xiaguan, Dali.

Genome-wide Prediction and Analysis of the Non-classical Secreted Proteins of Rhizobium etli CFN42

Zhang Wu, Pan Wei, Ma Jintian, Guo Tao

2015, 14(6): 45-48.

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In order to further the understanding of the molecular mechanism of the biological nitrogen fixation, we predicted and
analyzed the non-classical secreted proteins of Rhizobium etli CFN42 by the softwares of SecretomeP2.0 and SignalP4.1. The results
showed that 596 of the 5 963 proteins in CFN42 were non-classical secreted proteins, nearly accounting for 10% of the total number,
mainly including substrates transport, virulence infection, and material metabolism etc. We identified type I, III, IV secretion systems
among the proteins which were functional annotated, the proteins played an important role in infection and the development of the root
nodules. We also found Tad, Cupin, OmPA and CsbD domains by SMART software within the hypothetical proteins, these domaincontaining
non-classical secreted proteins may participate in the host specificity ofrhizobium. In brief, non-classical proteins play a
key role in rhizobium-legume nitrogen fixation system.

Time Budget and Effect of Nujiang Golden Monkey（Rhinopithecus strykeri）in Captivity

Wang Xinwen, Li Haishu, He Xiaodong, He Chengxiang, Ding Wei, Zhang Lixiang

2015, 14(6): 49-53.

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There is little research of the Nujiang golden monkey （Rhinopithecus strykeri）. In September 2013, Yaojiaping
Management Station of Gaoligong Mountains Nature Reserve took in a 2-year-old female Nujiang golden monkey. This study analyzes
the Nuijiang golden monkey's time budget, diet and the effect of captivity form September 2013 to September 2014. Based on the
observation and recordings, the diet for the monkey mainly are the wild plants in reserve areas, and 23 plants and the parts have been
identified. The daily time budget are: 61% of time is for resting, 15% for eating, 15% for feeding, 7% for combing and 2% for playing.
The analysis of action types in different periods shows that this golden monkey has a feeding peak and a moving peak in the morning
and a resting peak in the afternoon. It is also found that the time of ground activities exits and is about 5.8% of the daily activity time
budget and the main thing the monkey does on the ground is feeding.

The Biodiversity of Nematode-trapping Fungi on Heilong Stream in Cangshan Mountain

Mei Xiong'e, Zhou Fuxian, Dai Qi, Wei Fang, Su Hongyan

2015, 14(6): 54-57.

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Objective: To survey the diversity of nematode-trapping fungi on submerged wood and sideways soil along Heilong
Stream in Cangshan Mountain. Methods: 100 submerged decayed wood and 100 soil samples were randomly collected. All samples
were examined after incubation and fungi species were identified referring to classical taxonomics. Results: We found 11 species of
nematode-trapping fungi in 3 genera from submerged decayed woods and 16 species in 3 genera form soil samples. Conclusion: The
detection rate, species richness, dominance index and diversity index of the nematode-trapping fungi from the soil are higher than
those parameters from submerged decayed woods. Compositions of fungi community were similar in soil samples and submerged
decayed woods, but more species of fungi were found in soil samples.

Investigation and Comparison of Freshwater Hyphomycetes between Two Streams in Cangshan Mountain
in Dali

Liu Xiaoying, Luo Zonglong, Li Qinyan, Wang Ruxiao, Tao Xingchen, Wang Liwei,

2015, 14(6): 58-61.

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Objective: To find out the resources of freshwater hyphomycetes from Heilong Stream and Wanhua Stream and compare
their differences. Methods: 50 samples were collected from each stream, using Moist Incubation Method to incubate the fungi,
identifying the fungi based on the morphological characters. Results: 48 species of freshwater hyphomycetes were find out with 30
species from Heilong Stream and 21 species from Wanhua Stream. Kostermansinda nanum, Phaeoisaria clematidis and Sporidesmiella
rosae were found from both streams. Conclusion: The resources of freshwater hyphomycetes are abundant in Heilong Stream and
Wanhua Stream, and artificial dam can affect the communities of freshwater fungi.

Investigation on Resources and Distribution of Boletus in Cangshan Mountain National Nature Reserve

Tang Songming, Luo Zonglong, Su Xijun, Rao Canhe, Gong Bin, Su Hongyan

2015, 14(6): 62-65.

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Objective: To find out the resources and the distribution of boletus in Cangshan Mountain National Nature Reserve.
Methods: Using the methods of random survey to inverstigate and identify the species of boletus in Cangshan Mountain. Results:
Based on the field survey and previous data, this paper reports that there are 2 families, 16 genera, and 79 species of boletes in
Cangshan Mountain. Conclusion: The resources of boletus are abundant in Cangshan Mountain. Among the species found in this area,
Boletus edulis, B. regius and B. phaeocephalus are tasted delicious and with high economic value.

A New Record Specie of Seimatosporium from China

Feng Quanqing, Fu Wen, Chen Xiuhong, Zhang Ying, Zhang Donghua,Liu Li, Wu

2015, 14(6): 66-67.

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Based on the diseased samples of Rhododendron decorum decorum Franch collected in Kunming, Yunnan, this paper
reports a new record specie of Seimatosporium mariae (Clinton) Shoemaker which grows on the bud of Rhododendron decorum decorum
and leads to the withering of the bud.

Cultural Study on Bai Dragon Boat Race

Shi Hongqiang, Li Wen

2015, 14(6): 68-71.

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Dragon Boat Race, one of national tradition sports activities, is a water sports combining entertainment and competition
together. It has deep cultural implication and specific symbolic meaning in Dali Bai. This paper studies Dali Bai Dragon Boat Race
from cultural perspective with the purpose of revealing the social and cultural values of Bai Dragon Boat Race and enriching the
connotation and the impact of Chinese dragon culture, and promoting the heritage of national tradition sports.

The Summary of the Yi Nationality "Tiaocai" in Nanjian

Zhao Xiang, Gao Wenhua, A Benzhi

2015, 14(6): 72-75.

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Nanjian "Tiaocai" is a form of the Yi nationality people's traditional folk art. This article summarizes the study of the origin,
culture, dance, music, costumes and other aspects of Nanjian "Tiaocai", and puts forward some opinions for current research and
exciting problems hoping to provide academic references for related experts and scholars.

Investigation and Research of the Current Situation of Extracurricular Sports Activities of Senior High
School Students in Western Yunnan

Wang Shichao, Zou Hua, Zhao Tijin, Liu Jianming

2015, 14(6): 76-79.

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This paper investigates and studies the current situation of extracurricular sports activities of senior high school students in
western Yunnan through questionnaires and interview, aiming to offer theoretical basis for setting up the extracurricular sports activity
for senior high school students in remote minority nationality areas. Through the study, it's found that the poor attendance with
interference factors: huge learning burden, defective facilities and fields, the negative atmosphere of taking physical exercise and the
mismanagement and poor organizing of school. This paper suggests to carry out the sports events and contests which are related to local
minority traditions, to lay emphasis on fitness, participation, enjoyment and effectiveness, to promote the physical and mental
development and lay a solid foundation for life-long physical exercise with fitness and entertainment as the lever.

Study on Physical Health of Undergraduates in Dali University

Zhou Hanyu, Shi HOngqiang, Wang ZIjuan

2015, 14(6): 80-84.

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This paper took 12 926 undergraduates of Dali University as research samples, studied the exiting problems of
undergraduates' physical health condition including students' body shape, body function and physical quality, analyzed the physical
health condition of undergraduates in different campuses of Dali University, and provided the theoretical evidences for drafting the
intervention measures of undergraduates' physical health. This study was carried out using independent sample t test, analysis of
variance and LSD test. Results indicated that the mean physique index of undergraduates of four grades in Dali University was within
the normal range; the vital capacity index of four grades were lower than that of national college students; the physical quality index of
the male and female had great differences;students' physical quality was also different between different campuses. The physical health
condition of undergraduates in Dali University is not optimistic. School, family and society should pay more attention to physical health
and should take feasible measures to improve the body function and physical quality of undergraduates.

Teaching Reflective of Teaching Design of Architecture Foundation Course Basic Architectural Design II

Yang Rongbin, Tan Yue, Ping Zhiyong, Hu Dan

2015, 14(6): 85-89.

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Basic Architectural Design II is a required basic course of architecture majors. It is to cultivate the students' basic design
ability and practical ability in theory and practice teaching. Learning is the center of curriculum design and is running through the
whole teaching with different design projects. Through the teaching reflection, we are trying to summarize the teaching content,
methods, and the stimulation of students' motivation, and to improve the teachers' and students' ability of teaching practice in the
professional courses, and to promote course teaching reform and improve the quality and efficiency of study.

Reformation on Training Mode of Biomedical Engineering Based on CDIO

Xie Yong

2015, 14(6): 90-92.

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Under the background of "Plan for Educating and Training Outstanding Engineers", it is necessary to adjust the training
objectives and plans of engineering programs in colleges, so as to adapt to the needs of engineering education in the changing world.
Based on the CDIO framework of engineering education, we have developed an educational model for biomedical engineering program
in Dali University. Our goal is to change the old "emphasizing theory and neglecting practice" teaching mode, set the new one with
fostering the next generation of outstanding engineers as the goal. By designing a new training plan, establishing modularized
curriculum groups and curriculum design, we implemented the new plan for biomedical engineering undergraduate students based on
the constructivism learning environment.

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