Science Discovery

Volume 9, Issue 5, October 2021

  • Building Reconstruction of Historical and Cultural Protection Area Based on Green Technology

    Zheng Jiaoyan, Chen Hong

    Issue: Volume 9, Issue 5, October 2021
    Pages: 206-212
    Received: Aug. 24, 2021
    Accepted: Sep. 11, 2021
    Published: Sep. 23, 2021
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    Abstract: With the continuous intensification of urban expansion, the transformation and utilization of existing building resources has gradually attracted attention from all walks of life. The Lifen building is the epitome of Wuhan's residential culture for nearly a century. After the baptism of time, the use function and structural safety of the Lifen buil... Show More
  • Study on the Strategy of Enhancing the Spatial Vitality of Streets in Historical Districts - Fengxiang as an Example

    Huang Xiaoyan, Miao Li

    Issue: Volume 9, Issue 5, October 2021
    Pages: 213-218
    Received: Sep. 10, 2021
    Accepted: Sep. 29, 2021
    Published: Oct. 12, 2021
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    Abstract: As the main carrier of the evolution and development of historic districts, streets are the important foundation of street space, architectural texture and neighborhood vitality. However, in recent years, due to the inappropriate way of protecting the historic district and the rapid development of motorization, the spatial quality of the streets in... Show More
  • Analysis of Mechanical Characteristics of Mountain Highway Section Surface Structure Based on Load

    Zhang Zhigang, Wang Yue, Wang Wei, Qiao Jiangang

    Issue: Volume 9, Issue 5, October 2021
    Pages: 219-225
    Received: Sep. 10, 2021
    Accepted: Sep. 29, 2021
    Published: Oct. 19, 2021
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    Abstract: Mountain roads have many kinds of diseases due to their special natural and geographical conditions, and it is difficult to maintain the road surface, so it is particularly important to analyze the causes of the diseases from the theoretical aspect, in order to explore the relationship between structural mechanical characteristics and load of mount... Show More
  • Optimization of Green Infrastructure Network in Fengdong New Town Based on MSPA and MCR Model

    Ting Wang, Yunying Ren

    Issue: Volume 9, Issue 5, October 2021
    Pages: 226-233
    Received: Sep. 09, 2021
    Accepted: Oct. 14, 2021
    Published: Oct. 19, 2021
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    Abstract: The concept of life community integrating "mountains, rivers, forests, farmlands, lakes, and grasslands", proposed by the Chinese government, emphasizes the protection and restoration of ecosystem integrity. The construction of green infrastructure (GI) network can connect fragmented habitats, improve landscape connectivity, optimize ecological net... Show More
  • On the Research Value of "Food Landscape" Planning in the Process of New Urbanization

    Zhao Jie, Wang Ye, Wan Xuan

    Issue: Volume 9, Issue 5, October 2021
    Pages: 234-238
    Received: Sep. 09, 2021
    Accepted: Oct. 05, 2021
    Published: Oct. 19, 2021
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    Abstract: With the steady and rapid progress of the new urbanization process, the integration of urban and rural development has also become one of the main tasks of territorial spatial planning. In optimizing urban space governance, the planning and protection of permanent basic farmland for food production is also urgently needed. Our country's grain plant... Show More
  • A Brief Introduction to Han Fu and Han Dynasty Architectural Culture

    Yang Yang

    Issue: Volume 9, Issue 5, October 2021
    Pages: 239-243
    Received: Sep. 10, 2021
    Accepted: Oct. 08, 2021
    Published: Oct. 19, 2021
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    Abstract: The Han Dynasty was in the rising stage of China's feudal society, with a strong state, prosperous economy and developed culture. During this period, there were many types of architecture and magnificent scale. Although recorded in historical documents, they are brief and scattered. In comparison, the most perfect display is indeed the Han Dynasty ... Show More
  • Research on the Evolution and Ptotection of Kulangsu Historic International Settlement Under the Influence of Tourism Development

    Chenxi Zhao

    Issue: Volume 9, Issue 5, October 2021
    Pages: 244-254
    Received: Sep. 10, 2021
    Accepted: Oct. 18, 2021
    Published: Oct. 28, 2021
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    Abstract: China has a large number of world cultural heritage sites at present. On the one hand, the rise of tourism can promote the regional economic development. On the other hand, excessive commercialization also challenges the authenticity and integrity of heritage sites. Since Kulangsu has developed tourism since the late 1980s, the cultural ecology of ... Show More
  • Advances in Studies on Horizontal Gene Transfer Promoting the Evolution of Resistance Genes of Periodontal Pathogens

    Li Jianbin, Yu Xijiao

    Issue: Volume 9, Issue 5, October 2021
    Pages: 255-262
    Received: Sep. 29, 2021
    Accepted: Oct. 25, 2021
    Published: Nov. 05, 2021
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    Abstract: Horizontal gene transfer (HGT) plays an important role in bacterial evolution. HGT is an important way for bacteria to rapidly obtain genetic improvement. HGT promotes the transmission of biological characteristics such as virulence, antibiotic resistance and allometabolism in microorganisms. The bacteria in the mouth are abundant and abundant. Bac... Show More
  • Theoretical Study of the Stability and Vibration Spectrum of C38Cl2

    Zha Lin, Ma Guanhuai

    Issue: Volume 9, Issue 5, October 2021
    Pages: 263-268
    Received: Sep. 09, 2021
    Accepted: Oct. 28, 2021
    Published: Nov. 05, 2021
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    Abstract: In this study, the theory of density functional was used to geometrically optimize the binary chlorine-derived isomers of C38 at the b3lyp/6-31g(d) level. Analysis of the reaction heat and HOMO-LUMO of the optimized structure shows that C38Cl2 is thermodynamically stable; The 1-8 added isomer 10-C38Cl2-2-37 and The 1-4 added isomer 17-C38Cl2-12-27 ... Show More