Science Discovery

Volume 5, Issue 7, December 2017

  • The Area Comparison of LCC-HVDC and VSC-HVDC

    Jiang Haibo, Fang Jing, Zhang Tao, Fan Xiaomu

    Issue: Volume 5, Issue 7, December 2017
    Pages: 502-508
    Received: Dec. 27, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: With the mature of high power IGBT, VSC-HVDC technique is gradually adopted in principle power grid with higher voltage and capacity. At present, it is generally considered that compared with traditional HVDC technique, VSC-HVDC will save lots of land resources. However, it is not always the case. In this paper, two recent projects are used to comp... Show More
  • Study on the Monitoring and Guidance of Public Opinion of Micro-Blog Based on Complex Network in Colleges and Universities

    Gao Weimin, Chang Yunjie

    Issue: Volume 5, Issue 7, December 2017
    Pages: 509-514
    Received: Dec. 27, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: With the advent of the information age, the Internet has become the most important platform for people to express their opinions and attitudes toward public affairs or hot emergencies. Micro-blog public opinion has become the most influential network of public opinion of the means of transmission, with a short time, a wide range of communication fe... Show More
  • The Preparation and Experimental Research for Inner Cladding Casting of Al-Al

    Zeng Li-kui, Yang Ping, Wang Yajun

    Issue: Volume 5, Issue 7, December 2017
    Pages: 515-518
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: With the rapid development of science and technology, the unceasing enhancement of component integration degree, and the increasingly demanding of parts using conditions, the part that the traditional metal materials and alloy materials preparation is hard to meet the requirements of the use of some special conditions, so the new composite material... Show More
  • Efficent Synthesis of 5-(4-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl))benzylidene-2,2-dimethyl-1,3-dioxane-4,6-dione Derivatives

    Zhou Peng, Xu Zhaohui

    Issue: Volume 5, Issue 7, December 2017
    Pages: 519-523
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: Objective Synthesis of gastrodin intermediate 4-formylphenyl(2,3,4,6-O-tetraacetyl)-β-D-glucoside analogues. Methods 5-(4-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)) benzylidene-2,2-dimethyl-1,3-dioxane-4,6-dione derivatives were synthesized by the Knoevenagel reaction of self-made 4-formylphenyl(2,3,4,6-O-tetraacetyl)-β-D-glucoside and 2,2-dimeth... Show More
  • The Lubricity of Polyvinyl Alcohol and Nano-silica Hydrogel’s Scaffold Fabricated by 3D Printing

    Zhang Yikun, Wang Hui, Li Xuefeng

    Issue: Volume 5, Issue 7, December 2017
    Pages: 524-528
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: Hydrogel is a macromolecule three-dimensional network made of hydrophilic polymers, which is soft and has good elasticity. Hydrogels have a wide range of potential applications in tissue engineering, drug delivery and biosensors. In this paper can be applied to a biomedical polymer material polyvinyl alcohol as matrix, according to the first formin... Show More
  • Study on Blending Modification of Metallocene Linear Low Density Polyethylene

    Qiu Di, Xu Heng, Wang Peng, Li Xuefeng, Long Shijun

    Issue: Volume 5, Issue 7, December 2017
    Pages: 529-533
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: In recent years, with the rapid development of China's wire and cable industry, optical cable demand gradually increased, but the wire and cable water resistance is not good, and vulnerable to corrosion caused by the distortion of the optical signal, so the cable aluminum-plastic composite belt should be born. In this study, The aluminum-plastic co... Show More
  • Mechanical Properties of Hybrid Double Crosslinked Hydrogel Regulated by Sodium Chloride Solution

    Shu Mengmeng, Zhao Youjiao, Long Shijun, Li Xuefeng

    Issue: Volume 5, Issue 7, December 2017
    Pages: 534-537
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: Polymer hydrogels are a type of soft and wet materials with three-dimensional network structure, large water content and hydrophilicity. It plays a very important effect in the human tissue engineering because it has some excellent characteristics as human active tissue. In this study, physical/chemical hybrid cross-linked hydrogels were prepared b... Show More
  • Study on Anti-scaling Measures in Pipelines of Geothermal Power Station

    Zheng Shangji, Pacelli Zitha

    Issue: Volume 5, Issue 7, December 2017
    Pages: 538-544
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: In order to study the problem of scaling in pipeline during the development of hydrothermal geothermal resources, geothermal water in Fengshun area is selected as the research subject. The scaling tendency of geothermal water was analyzed through the analysis of water quality and scaling components, and the best scaling inhibitor was selected. The ... Show More
  • A Study of the Model of Street Corner Space in the Central District of Chicago

    Shao Dian

    Issue: Volume 5, Issue 7, December 2017
    Pages: 545-553
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: Urban street corner space, as an indispensable part of urban public space, plays a positive and effective role in improving urban quality and vitality because of its extensive penetration and accessibility. In this paper, the central area of Chicago street corner space as the research object, through field investigation and theoretical analysis, su... Show More
  • Study on the Planning Strategies of Urban Street Open Space Constrained by the Environment in Winter City

    Zhiqing Zhao, Liu Cong, Jiajun Hu, Yanyan Zhao

    Issue: Volume 5, Issue 7, December 2017
    Pages: 554-560
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 28, 2017
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    Abstract: Street open space, as a necessary place for residents to conduct interpersonal interaction in the city, serves as an important space for people to exchange material, energy and information with nature. In Harbin, a winter city, Dasongbei area, as a newly built zone, leads the strategic forefront in promoting new urbanization, whose open space has d... Show More
  • Study on Popularization and Application of Bamboo in Interior Design of Chinese Architecture

    Zhang Xiang, Wang Chenchao

    Issue: Volume 5, Issue 7, December 2017
    Pages: 561-564
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: This paper analyzed the advantages of bamboo from the perspective of interior design, summarized the application and ecological value of bamboo, and explored the feasibility and method of applying bamboo in modern interior design of China. It aimed to popularize the use of bamboo in interior design of Chinese Architecture. Finally, we can achieve t... Show More
  • Thinking Establishment and Diagram Expression of Green Architecture Design

    Zhou Zhongkai, Liu Changan, Zhao Jilong

    Issue: Volume 5, Issue 7, December 2017
    Pages: 565-571
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: As the important way of information visualization, diagram is an efficient approach in analyzing and expressing the thinking process and achievement of green architecture design, as a result, establishing the diagram system and expression methodology could make a great contribution to optimize design process, convenient thinking communication as we... Show More
  • Study on Office Building Window Design Strategy in Severe Cold Region Based on Daylight Comfort

    Wang Zhao, Yin Qing

    Issue: Volume 5, Issue 7, December 2017
    Pages: 572-578
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: Effective and reasonable daylight can create a comfortable and healthy lighting environment, and significantly affect the quality of indoor light environment in office buildings. Reasonable architectural form design can improve indoor light environment quality and visual comfort degree, and has great significance. Combining with light climate chara... Show More
  • Research on Adjacent Neighbourhood Planning of a University Campus---A Case Study on South China University of Technology

    Yu Chang, Xie Chun

    Issue: Volume 5, Issue 7, December 2017
    Pages: 579-586
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: The surrounding block of college and university is an important interface between campus and city, which does not only play an important role in industrial agglomeration, but also is closely linked to the surrounding traffic system and landscape environment. This paper analyzes Wushan Street, which is located around South China University of Techno... Show More
  • Tool Development of Construction Project Auxiliary Green Land Area Audit Based on AutoCAD .NET API

    Liu Yanmin, Zheng Hui, Ma Xiaokang

    Issue: Volume 5, Issue 7, December 2017
    Pages: 587-591
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: The scheme of construction project is joint approved by planning department and landscape department in Wuhan. The planning green land ratio of the construction project must achieve the standard of auxiliary green land ratio. During the auxiliary green land audit, the area of all the green land entity in the planning map is classified according to ... Show More
  • Analysis of Steel Fiber Randomly Distributed Concrete Beams Based on ABAQUS

    Zhu Kangwei, Xu Zhihong, Cao Zhiwei, Xu Wentao

    Issue: Volume 5, Issue 7, December 2017
    Pages: 592-597
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: In this paper, the stochastic distribution of steel fiber in concrete beam is realized by using MATLAB modeling software. Firstly, MATLAB software is used to establish random distribution of steel fibers of different number, length and position, and the steel fiber model is assembled in an embedded way with the concrete model. Then the ABAQUS softw... Show More
  • Experimental Study on Construction Waste Making New Road Brick with Recycled Aggregate Concrete

    Yang Jinglin, Tang Feng, Wan Linhui, Fang Liang, Ou Yangguoyuan

    Issue: Volume 5, Issue 7, December 2017
    Pages: 598-602
    Received: Dec. 28, 2017
    Accepted:
    Published: Dec. 29, 2017
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    Abstract: Pedestrian road paving brick is a kind of paving material. It is made of cement, stone and sand as raw material, and it is cut into stripes or squares by vibrating forming surface. According to the construction waste recycled aggregate concrete, the water cement ratio, recycled aggregate replacement rate as the main parameters, design a new type of... Show More
  • Dynamic Response Analysis of Simply Supported Steel Beam Under Natural Fire Field Load

    Tang Feng, Yang Jinglin, Wan Linhui, Ou Yangguoyuan

    Issue: Volume 5, Issue 7, December 2017
    Pages: 603-608
    Received: Dec. 28, 2017
    Accepted:
    Published: Jan. 07, 2018
    Downloads:
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    Abstract: The outbreak of fire has a great influence on. the carrying capacity of structure. the elastic modulus, flexural rigidity, yield strength and natural frequency of structural steel are discussed on the effects of fire temperature in this paper. The simply supported steel beam to form a plastic hinge when the ultimate moment changes in the first phas... Show More