工业节能的若干问题

解释了产品能耗和载能体等基本概念,介绍了产品能值的两种计算方法:累加法和逆矩阵法。以载能体概念为基础,指出了生产过程中节约能源的方向和途径。说明了在节能工作中应用优化方法的重要性。强调了工艺流程能耗评价的必要性和进行这类评价对的基本立足点。引用国际钢铁协会的研究结果,说明了生产流程对吨钢能耗的影响。     

Spatial analyzing system for urban land use management based on GIS and multi-criteria assessment modeling

Urban land management requires the integration of a wide range of data on ecological process, environmental process and process on urban planning and development. This paper combined land suitability modeling with remote sensing （RS）, landscape ecological analysis and geographic information system （GIS） to develop a spatial analyzing system for urban expansion land management. The spatial analyzing system incorporates the use of a multi-criteria mechanism in GIS for the suitability evaluation of urban expansion land. Grey relational analysis （GRA） was combined with analytic hierarchy process （AHP） to address the uncertainties during the process of evaluation. This approach was applied to explicitly identify constraints and opportunities for future land conservation and development in Changsha City, China. Validation of the methodology showed a high degree of coincidence with the previous independent studies as regards ecological suitability. The methodology can be useful in environmental protection, land management and regional planning.     

影像压缩技术在土地遥感中的应用潜力分析

归纳了遥感影像压缩技术的发展现状与趋势,比较了常用的6种遥感影像压缩算法.同时,针对我国已积累约数百TB的土地遥感应用数据,以降低数据存储空间要求和提高数据传输效率为目标,对影像压缩技术在土地遥感中的应用潜力进行了分析与展望.     

黑龙江省体育产业现状与对策研究

针对黑龙江省体育产业发展现状进行了实地调查,在深入分析黑龙江省体育产业发展现状及存在问题的基础上,提出了解决黑龙江省体育产业发展问题的若干对策与措施.     

平面型热声转换装置的特性分析

利用热声效应制作出一种由加热层、绝缘层和储热层构成的平面型热声转换装置.对加热层输入交变电压信号时,由于焦耳效应及各层材料的不同热力学特性,其表面附近区域会产生相应的声波.通过对装置模型进行理论分析,推导出装置输出声压及效率的表达关系式,并利用高速数据采集系统及红外成像仪对装置工作特性进行了实验研究.结果表明:该平面型热声转换装置的输出声压和效率随输入电功率的增大而增大;环境温度对装置输出声压的影响较小;通过对装置表面静态温度场分布进行分析,得到装置结构的优化方法.该装置实现了电能、热能、声能之间的转换,具有无任何运动部件、频率可控、稳定性高等优点,因而可广泛用于电声换能领域.     

乐果农药污染对土壤动物呼吸强度的影响

选用乐果农药对寡毛类白颈环毛蚓、鞘翅类金龟甲科幼虫和等足类鼠妇虫科动物进行染毒试验,研究农药污染对土壤动物呼吸强度的影响。结果表明,乐果农药毒性对土壤动物呼吸强度具有明显抑制作用,其呼吸代谢强度随农药处理浓度的增加与染毒历时的延长而减弱,高浓度,短时间或低浓度、长时间的染毒均能导致土壤动物的死亡。     

流水作用与成都市地貌演变初探

根据地层、文物考古以及~(14)C资料,初步探讨了围绕成都市区的锦江与府河近万年来的变迁与成都市地貌的演变过程.     

钻孔灌注桩施工工艺及质量问题处理措施

文章阐述了钻孔灌注桩施工工艺及施工质量的影响因素，并根据施工经验，提出预防和控制措施。     

Contributing to Sustainable Development——The Mission and Value of Higher Education

Some notes on sustainable development and scientific outlook on development were given. It is addressed that the mission of higher education to contribute to sustainable development should be reinforced and further expanded. The present situation of China's higher education and the improvements required were analyzed. Two modes of thinking (reductionism and holism) and the relationship between the mode of thinking and the mode of development were discussed. The change in the mode of thinking is the key point for Chinese higher education, and more intensive reform of teaching affairs is necessary. A proposal of the revision of China's Higher Education Act and University Constitutions was put forward.