影响高校绿地利用率的因素分析--以武汉大学医学部为例

高校的开敞绿地空间应能够为在校的学生提供一个可供学习、休憩、社交、放松心情的场地。然而由于规划者在设计之初对方方面面的因素考虑不周全,再加上高校校园自身的发展,以及校园的空间结构发生变化,使得许多空间未能达到设计者预期的目标。以武汉大学医学部校园为例,通过分析其绿地空间的布局特征、空间结构以及用空间句法对校园中几块绿地以及整体校园进行集成度的解析发现其存在的缺陷,并提供相关建议,从而提高其绿地空间的使用效率。     

Effects of land use and changes in cover on the transformation and transportation of iron:A case study of the Sanjiang Plain,Northeast China

Wetland reclamation has been ongoing in the Sanjiang Plain since the mid-1950s,which has resulted in major changes in wetlands and the agriculture ecosystem in the region that have influenced the iron output to the Sea of Okhotsk and limited the primary productivity in the North Pacific Ocean.This study was conducted to investigate the chemical forms of iron in different aquatic environments(agricultural water including groundwater,paddy water,and canal water;wetland water including marsh water,marsh stream...     

Numerical analysis for the prediction of bump prone conditions:A southern Appalachian pillar coal bump case study

Two miners were fatally injured when a pillar bump occurred during retreat mining in a southern West Virginia coal mine. The mine was operating in the Eagle seam with overmining in the No. 2 Gas and Powellton seams. A coal bump is defined as a sudden and violent failure of coal caused by the release of stored strain energy in the pillar. While significant strides have been made by academia, industry,and regulatory agencies to better understand bump conditions and mitigation techniques, coal bumps represent a long standing, highly site-specific engineering problem in which the exact failure mechanism is not clearly understood. In this case history, a cut-by-cut analysis of retreat mining operations was conducted on the 4 East Main leading up to the pillar bump event. Numerical input parameters were derived from site-specific geologic information and mine geometry for the analysis of pillar stress conditions and energy release using LaModel. An overview of stress conditions in the panel was presented including a precursor event that occurred two crosscuts inby the bump site. The methodology presented in the paper for the evaluation of the fatal bump event can be used for the identification of bump prone conditions prior to development and retreat of a mining area.     

预警视角下电视灾难性报道的策略——以2010年西南旱灾的报道为例

面对近几年频繁发生的自然灾害,建立相应的社会预警体系势在必行,而传媒预警作为社会预警的一部分,正日益发挥着更大的作用。以2010年西南旱灾为例,将电视灾难报道置于传媒预警的视角下,通过案例分析来审视电视预警新闻报道的现状,并在此基础上探寻电视预警新闻缺位的原因,从而构建电视预警新闻报道的策略,以减少或避免灾难带来的损失。     

Necessity and feasibility for an ET-based modern water resources management strategy: A case study of soil water resources in the Yellow River Basin

The necessity and feasibility of an ET-based modern water resources management was analyzed to improve assessment of critical water resources scarcity in the region/basin. This analysis was based on the whole water cycle process and its analysis object is evapotranspiration (ET), a main consumption component in the water resources dynamic transformation process. A case study was undertaken by selecting soil water resources in the Yellow River Basin and employing the WEP-L distributed hydrological model with...