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REFORMING CHINA'S HIGHER ENGINEERING EDUCATION

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Bulletin of the Chinese Academy of Sciences 1996年第2期10卷 160-166页

作者： Division of Technological Sciences, cas

This article expounds that China’s higher engineering education is facing both challenges and opportunities. Some special difficulties and problems rise in the course of economic transition, and exhort us that it has been of great urgency to carry out a reform of higher engineering education. Here are put forward six measures: to explore training patterns of such an education suited to China’s national conditions; to improve university system: to transform educational ideology, and reform educational contents and methods; to establish a system of cooperation of engineering universities and colleges with industries; to strengthen construction of teacher contingent in engineering universities and colleges; and to carry out testing work of continuing engineering education and training education.

关键词： REFORMING CHINA’S HIGHER ENGINEERING EDUCATION work

Discrete Element Modeling of Debris Avalanche Impact on Retaining Walls

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Journal of Mountain Science 2010年第3期7卷 276-281页

作者： LI Xinpo HE Siming LUO Yu WU Yong Key laboratory of Mountain Hazards and Earth Surface Process CAS Chengdu 610041 China Institute of Mountain Hazards and Environment CAS Chengdu 610041 China

In China,gravity retaining walls are widely used as protection structures against rockfalls,debris flows and debris avalanches along the roads in mountainous *** this paper,the Discrete Element Method(DEM) has been used to investigate the impact of granular avalanches and debris flows on retaining *** debris is modeled as two dimensional circular disks that interact through frictional sliding *** basic equations that control the deformation and motion of the particles are introduced.A series of numerical experiments were conducted on an idealized debris slide impacting a retaining *** parametric study has been performed to examine the influences of slope geometry,travel distance of the sliding mass,wall position,and surface friction on the impact force exerted on the *** show that:1) the force achieves its maximum value when slope angle is equal to 60°,as it varies from 30° to 75°;2) an approximate linear relationship between the impact force and the storage area length is determined.

关键词： Debris flow debris avalanche rockfallretaining wall Discrete Element Method

ON THE WORK PLAN OF cas DIVISIONS IN THE NINTH FIVE-YEAR PLAN

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Bulletin of the Chinese Academy of Sciences 1997年第3期11卷 215-219页

作者： Guo Chuanjie, He Renfu, Han Cunzhi & Meng Hui(The Joint Office of the cas Academic Divisions)

The organization of the cas Academic Divisions is the supreme consulting body of the state in the science and technology sector, and in preparing its working plan in the Ninth five-year Plan period, the focus should be on facilitating the implementation of the ’Two Strategies", giving prominence to the central place of academic activities (including providing scientific advice, conducting academic exchange, and spreading science among the public), enhancing the "Two Constructions" (the construction of the cas membership and the construction of the Academic Divisions themselves in science ethics), and making contributions in three aspects (science progress and training of young scientists; economic construction and social development; improvement of scientific quality of the whole nation). Attentions should also be paid to close cooperation with the research institutes of the cas.

关键词：吐法对比成由切口

ON ECOLOGICAL CHARACTERISTICS, UTILIZATION AND MANAGEMENT OF THE TIBETAN PLATEAU, CHINA

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Journal of Geographical Sciences 1997年第2期7卷 69-74页

作者： Yang Qinye Institute of Geography, cas, Beijing 100101 People’s Republic of China

This paper briefs the basic characteristics of eco environment, land use, sustainable strategic development objectives and existing problems on the realization of sustainable development in Tibet.

关键词： sustainable development eco environemnt Agenda 21 Tibet.

PRELIMINARY STUDY ON COMMUNITY TOURISM

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Journal of Geographical Sciences 1997年第4期7卷 101-108页

作者： Tang Shuntie Institute of Geography, cas, Beijing 100101 People’s Republic of China

It is a tendency to construct a tourist destination into a tourist community. This appears to be an appropriate approach to practice sustainable tourism development. Classic tourism, ecotourism and community tourism may be the three stages in tourism development. Classic tourism focuses on how to amuse people and to get best economic benefit. Ecotourism with the concept of sustainable development suggests what we should do in tourism development. Community tourism tells us how we can do to get sustainable tourism development. The differences among them are illustrated in the paper. Having analyzed the formation mechanism of tourist resources, the author investigates classification, stability, and evolution of tourist communities. The four types of tourist communities: natural resources based tourist community, policy oriented tourist community, economy based tourist community, and history sediment tourist community have different stabilities. The paper describes the feedback mechanism and relationship among tourist flows. It also discusses basic development principles of tourist community and points out that the optimization of the structures of a tourist community is the key way to improve the efficiency of tourist flows.

关键词： tourism tourist flow tourist destination tourist community community tourism

THE APPLICATION OF GIS IN URBAN PLANNING:ENVIRONMENTAL ZONING STUDY IN THE OLD CITY OF WENZHOU,CHINA

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Journal of Geographical Sciences 1994年第Z2期4卷 54-68页

作者： Guan Falan(Institute of Geography, cas, Beijing 100101 Peopel’s Republic of China)

Due to rapid growth of population, urbanization and industrialization, in many cites of the developing world, there is severe contradiction between urban land supply and land demand which resulted in many urban land use conflicting situations and urban environment degrading. This paper is mainly focused on this problem, demonstrating the feasibility and efficiency of environmental study by integrating GIS and environmetal zoning method. Two neighbourhoods of the old city of Wenzhou were chosen as the study area. With the aid of GIS software PC Arc/info as dBate IV, an urhan environmental impact assessment study was carried out based on the data available such as land use map and detailed attribute data of each land planning unit. The main factors taken into consideration include: the type of activity causing environmental stress, the type and strength of environmental impact and the type of receptive area that could be affected.

关键词： urban land use planning environmental zoning study environmental impact assessment

Construction of Optimal Truncated Low-Dimensional Dynamical systems directly from PDEs

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Communications in Nonlinear Science and Numerical Simulation 1998年第1期3卷 1-5页

作者： Hongliang ZHAO, Chuijie WU(LNM, Institute of Mechanics, cas, Beijing, 100080) (Air Force Institute of Meteorology, Nanjing, 211101) Email: cjwu@*** LNM Institute of Mechanics CAS Beijing 100080 China Air Force Institute of Meteorology Nanjing 211101 China

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关键词： low dimensional dynamical system partial differential equations optimization

CRITICAL ENVIRONMENTAL SITUATION IN THE MIDDLE REACHES OF THE YELLOW RIVER IN CHINA

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Journal of Geographical Sciences 1996年第1期6卷 36-47页

作者： Yang Qinye Liu Xuehua Li Guodong(Institute of Geography, cas, Beijing 100101People’s Republic of China) Inst of Geogrpahy CAS Beijing 100101 China

This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of environmental situation (ES) are divided, namely, conflict ES, critical ES, crisis ES, disastrous ES and accidental ES and 7 groups of main factors are used to identify and classify the critical environmental situation after considering the speciality of this region and the law of guiding factors. They are pollution, endemic disease, soil erosion, drought and water-shortage, forest degeration, wind-erosion and desertification, and soil salinization. Based on mapping and analysis, the paper also concludes the regional distribution law of critical environmental situation of this region and divides it into 8 small districts through combining the critical envirormental situation, regional distribution law and guiding factors. This can provide scientific basis and reference for preserving and renovating the environments with different fragile types and fragile levels.

关键词： middle reaches of the Yellow River critical environmental situation,mapping district division of critical environment

INFRASTRUCTURE CONSTRUCTION IN THE LONGHAI-LANXIN ECONOMIC BELT OF CHINA ALONG NEW ASIAN-EUROPEAN CONTINENTAL BRIDGE

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Journal of Geographical Sciences 1996年第4期6卷 75-92页

作者： Liu Yi(Institute of Geography, cas, Beijing 100101 People’s Republic of China)

Infrastructure construction is the precondition for promoting regionaleconomy and intemational cooperation. In this sense, the Newlyopened AsianEuropean Continental Land Bridge (NOAECLB) will provide a great opportunityfor all the ropons along its sides to speed up their econondc growth. This paperfocuses on evaluatin the Changing pattem of economic growth in the repions alongNOAECLB within China's boundary in general and discusses the problems, majortasks and relative polides for infastructllre construction in this area in particLilar.

关键词： continental bridge regional development infrastructure policies China