Table of Content

15 June 2017, Volume 2 Issue 6

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Research on the Vehicle DTNs Routing Protocol Based on Multiple Forwarding Mechanism

2017, 2(6):  1-7. 

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Internet of vehicle（IoV）, which is an important foundation of intelligent transportation system（ITS）, is currently a hot research topic. Routing protocol is the core issue of the IoV research. An improved vehicle DTNs（VDTNs）routing algorithm based on multiple forwarding strategy is proposed in this paper, which is used to select a next-hop forwarding node having a higher meeting probability with destination node. We demonstrate in terms of the average transmission delay and arrival rates in our proposed algorithm are better than that of the Epidemic, Spray and Wait, Spray and Focus, and Maxprop protocols through the ONE software simulation.

A Study on the Cultivation of "Makers" in Colleges and Universities under the Environment of APP Education

Wang Jianshu

2017, 2(6):  8-11. 

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Aiming at the feasibility of college Maker Education with the support of APP, this research proposed a Maker Education mode in APP environment based on advanced educational theories, which provided reference for further applications of APPs in college education.

Design and Application of Medical Image General Browser on Dotnet Plug-in Framework

Fan Lifang, Zhao Feng, Zhang Xia, Qi Gan, Zhu Xiangming

2017, 2(6):  12-15. 

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Medical image general browser based on Dotnet plug-in framework was studied, using the present FULLPACS system in hospital and standard interface technologies in dotnet environment including WCF, XML, HL7, DICOM, HTTP and SOAP, etc. The Dotnet plug-ins follow the DICOM standard and could be assembled to different types of image browsers. This research realized the flexibility of installing and uninstalling of plug-ins of medical browser, distance learning and remote consultation. Dotnet plug-ins could be installed and installed simply without changing the software program, which guarantees the stability of software and easy access to retrieve and share medical image data.

A Result on the Approximation of Constant e

Qin Qingxiong

2017, 2(6):  16-18. 

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Using the monotonicity of function, it can be proved that, where. Examples are given to show that this inequality can be used to prove other inequalities.

A Digital Watermarking Algorithm based on Image Size Invariant Visual Cryptography

Li Chunyan

2017, 2(6):  19-21. 

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In order to increase the capacity and robustness of watermarking, this paper presents a digital watermarking algorithm based on image size invariant visual cryptography. Firstly, the watermark of binary image is scrambled in order to reduce the pixel correlation. Then the low bit of carrier image is altered by using basic matrix of（2, 2）visual cryptography scheme and watermark value. Experimental results show the algorithm has better robustness performance under image processing attack. The method is accomplished easily and the embedded data is larger. It is a simple and reliable watermarking algorithm.

A Practice of Bilingual Education on Medical Physics

Xie Yong, Yang Yanting, Li Sijing

2017, 2(6):  22-24. 

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Bilingual education is the inevitable demand for the internationalization of higher education. In the practice of bilingual education on medical physics, we utilized the model of maintenance bilingual education. We designed the multimedia course wares and built a web teaching platform, through which the students have greatly improved their English proficiency and self-learning ability.

Target Transformation Factor Analytical Method Used in the HPLC Peak-matching of the Gualou-Xiebai and the Herbs in Its Prescription

Zou Chuncai, Yan Haiyan

2017, 2(6):  25-30. 

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Objective: To investigate the principle and application of the asymptotic window target transformation factor analytical method in the HPLC chromatographic fingerprint peak matching. Methods: The fingerprints of the effective fraction in Gualou-Xiebai and the herbs in its prescription were obtained by using HPLC-PDAD, and the HPLC chromatographic peaks in fingerprints were peak-matched based on the principle of the asymptotic window target transformation factor analytical method. Results: With this method, there were 22 common peaks between the ethyl acetate extraction of Gualou-Xiebai and Gualou, and there were 10 common peaks between the n-butanol extraction of Gualou-Xiebai and Xiebai. Conclusion: The asymptotic window target transformation factor analytical method can match the chromatogram peaks quickly and accurately between different fingerprints.

The Integrated Use of Ultraviolet Spectrum Fingerprint Coupled with Infrared Spectrum Fingerprint to Comprehensively Assess the Quality Grades of San-huang Tablets

Wang Yan，Sun Guoxiang

2017, 2(6):  31-36. 

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Objective: To comprehensively evaluate the quality grades of 30 batches of San-huang tablets from diverse commercial brands. Methods: Ultraviolet spectrum fingerprint and infrared spectrum fingerprint were developed for the measurement of Sanhuang tablets. To evaluate the quality of the drug samples, SL, ML and α values were computed for each analytical method, and the integrated SL, ML and α values were also calculated by taking the average value of the above-established method. Results: Most of the samples were qualified（quality grade≤5）after the use of integrated method. Conclusion: Any detection method is single and onesided, and could not overall characterize the tested samples, which reminds us that it is essential to adopt multi-approaches to disclose the quality information of traditional Chinese medicine and herbal preparations. The strategy proposed in this study provides a simple, fast, comprehensive and objective approach for the quality control of traditional Chinese medicine and herbal preparations from both the qualitative and quantitative aspects, in the case that complex components are not yet completely separated.

Species Differentiation and Quality Assessment of Gentiana by High-performance Liquid Chromatographic Fingerprint and Chemometrics Analysis

Zhang Xiaocan, Li Yang, Luo Dandan, Tao Aien, Duan Baozhong

2017, 2(6):  37-40. 

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Objective: To compare the chemical quality among three species of Gentiana. Methods: HPLC fingerprints of the three kinds of Gentiana have been established and analyzed with chemometric methods including similarity evaluation, hierarchical cluster analysis and principal component analysis. Results: There is significant difference among the three species of Gentiana expressed by the fingerprint patterns. The result of chemometric analysis indicated that 17 samples were classified into three categories.Conclusion: HPLC fingerprint combined with chemometrics analysis is an effective method for the discrimination of different groups of herbal medicines.

Preliminary Test for Chemical Compositions of Nanocnide lobata from Three Gorges Reservoir

Yang Min, Liu Qin, Li Changling, Zhu Li, Yan Jinyuan, Chen Yanfei, Zhou Nong

2017, 2(6):  41-44. 

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Objective: To analyze the initial chemical compositions of Nanocnide lobata from three gorges reservoir by the preliminary test. Methods: The test tube assay and paper assay were adopted to analyze the solution extracted by water, ethanol and petroleum ether of Nanocnide lobata from three gorges reservoir．The chemical compositions of the extract were identified by a variety of color reactions or precipitation reactions of indicator and chromogenic agent. Results: Nanocnide lobata may contain organic acids, polysaccharides, glycosides, coumarins or lactones, flavonoids, steroids or triterpenes, volatile oils or oils and other chemical compounds. Conclusion: This study preliminarily identified the type of the chemical compounds of Nanocnide lobata, which provides the foundation for further research on its medicinal value.

Study on Chemical Constituents of Whitfordiodendron filipes

Lu Anmei, Yan Hegui, Hu Jun, Fu Xuemei, Qin Zemin, Guo Jie, Yang Minghui

2017, 2(6):  45-48. 

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Objective: The chemical components of Whitfordiodendron filipes were studied in order to search for bioactive ingredients.Methods: The seed of the plant were extracted in the cold-soaked way with ethanol, and the ethanol extraction was partitioned with petroleum ether, acetic ether（EtOAc）and n-butyl alcohol（n-BuOH）. The fraction was separated using silica gel, Sephadex LH-20 column chromatography methods, and their structures were identified based on spectroscopic analyses and chemical properties.Results: Eight compounds of EtOAc and n-BuOH fraction were purified and identified as allantoin（1）, 3-（4-methoxyphenyl） propionic acid（2）, formononetin-7-O-β-D-glucopyranoside（3）,（E）-3, 2′, 4′, 6′ -fourhydroxy-4-methoxy-chalcone-2′-O-Dglucopyranoside（4）, vicioside（5）, D- sucrose（6）, D- 3- O- Quebrachitol（7）, n- tritriacontanol（8）. Conclusion: All these compounds were identified and isolated from the plant for the first time.

Optimum Conditions of Gold Nanorods Preparation by Seed-Mediated Growth Method

Li Jiameng, Cao Ying, Kong Yufang, Lian Xiaoli, Yang Yimei

2017, 2(6):  49-54. 

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Objective: To explore gold Nanorods preparation with best conditions by seed-mediated growth method. Methods: To synthesize different morphological characteristics of gold Nanoparticles by controlling the concentration ratio of different compositions and the growth temperature, and the synthesized gold Nanoparticles were characterized by UV- vis spectroscopy. Results: By optimizing the reducing agent, surfactant, and temperature, etc，the best concentration of CTAB was 0.095 mol/L，of AA was 0.640 mmol/L，and of AgNO3 was 72 mmol/L. The best temperature was 28°C. Conclusion: The gold Nanoparticles growth mechanism in the process of polymerization and the best experimental conditions were studied，and the optical properties of GNRs were successfully prepared.

Study on the Structural Flexibility of Cysteine Protease TsCL-1 from Cysticercus Cellulose

Yang Lin, Zhu Yuexun, Yang Yanchao, Zhao Qinping, Yang Liquan

2017, 2(6):  55-58. 

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Using the Molecular Dynamics Simulation method, the dynamic structural stability and conformational flexibility of cysteine protease TsCL-1 from Cysticercus cellulose have been investigated. The results indicate that TsCL- 1 contains an overall structural stability during the simulation. The results also indicate that the structural core of TsCL- 1 shows a small fluctuation amplitude, whereas most of the surface- exposed loops and the substrate binding sites experience significant conformational fluctuations and exhibit a highly structural flexibility. The results of this article will provide a solid basis for further studying the relationship between dynamic structural features and functions of TsCL-1.

Isolation, Identification and Methods for Inhibiting Growth of the Spoilage Molds from Postharvest Strawberry Fruits

Yang Qianran, Gu Xiaoying, Zhang Yunjuan, Wang Wen, Li Lingfei

2017, 2(6):  59-63. 

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Objective: The molds from spoilage strawberries were isolated and identified, and the methods for preventing rot were explored to provide a reasonable and effective basis for controlling the molds purposively during the processes of keeping fresh, storage and deep processing for strawberries. Methods: The molds isolated from strawberry fruits were identified by morphological characteristics and DNA sequence analysis. Results: The molds causing strawberry rot included Penicillium commune, Penicillium chrysogenum, Penicillium olsonii, Penicillium spinulosum, Aspergillus terreus, Aspergillus fumigates, Trichoderma atroviride, Glomerella acutata and Pestalotiopsis sp.. Furthermore, the molds from strawberry fruits were inhibited respectively using ultraviolet, sorbic acid, phytic acid sterilization combining cold storage. It was showed that cold storage after 0.05% sorbic acid was the best preservative method for strawberry fruits. Conclusion: The molds causing strawberry rot were classified 5 genera and 9 species, among which Penicillium was the dominant genus causing strawberry rot. The present results showed that 0.05% sorbic acid solution was an ideal method for fresh keeping and storage of strawberries

Analysis of Nutritional Compositions of Yunnan Wild Fragaria Nilgerrensis Schlecht Fresh Fruit

Li Guixiang, Lyu Jianzhao，Xiao Xiangdian，Shen Fachun

2017, 2(6):  64-67. 

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According to national food standards, compositions of Yunnan Fragaria nilgerrensis Schlecht fresh fruit, such as amino acids, mineral elements, total sugar, total acid were comprehensively tested, and its nutritional value was evaluated. The results show that the fresh fruits contain total sugar, total acid, protein and other nutrients, as well as 17 kinds of amino acids（the content of glutamic acid is as high as 2.16 g/kg）and 9 kinds of mineral elements which human bodies need（among them the content of potassium is as high as 160 mg/kg）. Fragaria nilgerrensis Schlecht is a collection of medical, edible value with excellent genetic species, and is also a kind of pollution-free and purely natural food, which has a great development potential.

Impact of Black-and-White Snub-nosed Monkey on Plant Community Structure: A Preliminary Result

Dai Lujiao, Li Yanpeng, Fei Hanlan, Li Jihong, Huang Zhipang, Xiao Wen

2017, 2(6):  68-72. 

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To explain effects of rare and endangered primates on plant community structure, we analyzed the impact of the blackand-white snub-nosed monkey（Rhinopithecus bieti）on forest structure by comparing plant communities in an existing Rhinopithecus bieti habitat in Longma Mountain（Mt. Yongma）and an historical suitable habitat in Tianzi Mountain（Mt. Tianzi）. We collected plant community data in both sites using sampling methods from January 1th to 15th in 2014. Results showed that in the existing habitat of Mt.Yongma, hemlock trees had lower heights and larger crowns（t = 2.60, df = 236, P = 0.01; t = 10.49, df = 236, P < 0.001）, Pinus armandi had larger crown（t = 7.46, df = 190, P < 0.001）, and other tree species had lower heights and smaller diameter at breast height（t = 7.19, df = 527, P < 0.001; t = 4.11, df = 527, P < 0.001）. Shrubs showed lower height and smaller coverage, while herbs also had lower height in the existing habitat than in the historical suitable habitat（Z = 4.78, P < 0.001; Z = 6.24, P < 0.001; Z = 3.71,P < 0.001）. No significant differences were found in the diversity index, the Pielou index and the value of importance of plants. These findings confirmed the impact of black-and-white snub-nosed monkeys on vegetation structure and its role in the process of ecology succession. However, Rhinophitecus bieti's impact on plant diversity was not obvious.

Bibliometric Study of Literature on Medicinal Model Species of Ganoderma lucidum

Bai Rui, Cheng Ruiyang, Mao Benyong

2017, 2(6):  73-75. 

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Bibliometric method was used to retrieve the related literature of the bio- Ganoderma lucidum model. Data from 1990 to 2015 were collected, and the literature sources, research institutions, research directions and support foundations from 2011 to 2015 were analyzed. The results showed that overall quantity of the articles is on the rise, among which the domestic annual publication number rising trend is relatively smooth, whereas the foreign annual publication number has been increasing obviously. This indicates that Ganoderma lucidum has become a hot research topic between 1990 and 2015. The literature analysis from 2011 to 2015 indicates that the domestic literature sources are mainly located in the Ganoderma lucidum origin, and the top three international literature sources are Chinese mainland, the United States and China Taiwan; Ganoderma lucidum research focuses on two aspects: one is the separation of extracts, the nature of active ingredients, structure, medicinal efficacy and pharmacological effects of basic research, and the other is cultivation, industrial chain quality control and other basic research applications. In recent years, biochemical molecular biology research also occupy a large proportion worldwide.

Catalogue and Information Processing of Odnata in Dali University

Han Li，Yang Guohui

2017, 2(6):  76-79. 

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According to the arrangement, identification and classification of the Odonata specimensin the Biological Science Museum of Dali University, a total of 150 species, under 2 suborders, 17 families, and 84 genera, were reported. With the help of text and image processing softwares, this research realizes the information processing of the specimen and the resource share through posting information online by Office In-foPath 2010, and puts forward suggestions for the specimen management problems.

Research on the Interaction Between Subject and Object of the National Sports Tourism from the Perspective of Symbolic Interaction Theory

Liu Zhuanqing, Liu Jide

2017, 2(6):  80-84. 

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Explaining the main view of the symbol interaction theory, this article points out that there are two kinds of symbols included in the national sports tourism: one is materialized symbols as inheriting carrier of the significance, and the other is "ideographic attitude" and "language". Four different types of role orientations were classified from the perspectives of the tourism residents and tourists respectively. Based on this, the content and the way of the interaction between subject and object in different role orientations were analyzed one by one. It is proposed that the residents should break through the shackles of the traditional role orientation in national sports tourism, pay attention to the collection and interpretation of the tourists' signs, adjust their interactive mode in time according to the role orientation of tourists, and transmit their own symbol information to the tourists timely and effectively to help them eliminate misgivings and prejudices in order to create a good image of sports tourism.

Reform and Practice on Experimental Teaching of Physical Health

Duan Yimei, Wu Lijuan, Li Jia

2017, 2(6):  85-88. 

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Aiming at the shortcomings of the traditional Physical health experimental course, the experimental teaching contents,teaching methods, teaching concept, practice mode and evaluation system were reformed in order to improve the experiment teaching effect through boosting students' emphasis on the experimental course, enhancing students' homework exercise, completing open experimental teaching mode, trying to take the "medical-sport binding" mode, introducing vocational skills training and professional qualification authentication, setting up sports health club and Tuina massage association, and focusing on the introduction of the latest scientific research.

Study on the Teaching Ability of Young Teachers of Science and Engineering in Colleges and Universities ——Taking Dali University as an Example

Li Zhongmu, Luo Qiping, Chen Li, Mao Caiyan

2017, 2(6):  89-93. 

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With the rapid expansion of college enrollment, a great many of young people are joining in the teaching staff of universities, which has effectively strengthened the faculty building, but meanwhile has brought many problems. Young teacher's ability generally lags behind the high demands of college teaching, especially in the field of science and engineering. Therefore,promoting new teachers' teaching ability has always been a focus for colleges and universities. The present paper investigated into status and main influential factors of young teachers' teaching ability development through questionnaires, expertise interview, and communications with teachers, and then proposed some suggestions for developing young teachers' abilities.

Research and Practice in Undergraduate Education Quality Evaluation Method of Physics Specialty in Dali University

Li Maocai

2017, 2(6):  94-96. 

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Undergraduate quality evaluation methods of Physics specialty in Dali University was analyzed and applied to assess the educational quality of six successive graduating grades. This provide reference for talents cultivation of Physics majors in Dali University.

Reform and Practice in College Basic Computer Experimental Teaching ——Taking Dali University as an Example

Cai Runqin，Cun Xian'e

2017, 2(6):  97-100. 

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The research aims to solve the existing problems in the college basic computer experimental teaching, such as significant students' individual differences, inadequate teaching resources and teaching hours, single teaching mode and imperfect assessment system . The result shows that through resetting teaching contents, adopting new teaching modes and comprehensive teaching method,and perfecting assessment system, teaching quality has been greatly improved and students' ability in computer use and general study has been enhanced.