Statistics for Studies of Human Welfare

Developments in the recent past have substantially increased our ability to measure, compute, and communicate. We take the view that a corresponding improved understanding of processes in the life sciences will come about only through more intensive studies of properties of statistical methods and algorithms and transparent, open source computing environments.     

科学创新的人文动源系统

创新是当今世界发展的主题,科学创新是创新链条的初环,研究科学创新的动力系统成为一种必然.科学创新的人文内涵表现在各种人文要素对其影响上,这些结构要素的系统动力学效应成为科学创新的动力源泉.这些人文要素大体包括哲学、宗教、政治制度、法律、社会道德、文学和艺术等.它们主要从诱发基本观念、规范、情感三个角度对科学创新产生影响.     

Prevention versus Treatment under Precautionary Regulation: A Case Study of Groundwater Contamination under Uncertainty

Policy discussions on agricultural pollution problems characterize prevention as more cost effective and precautionary than ex post treatment. We derive conditions under which treatment alone is more cost effective in situations involving multiple sources of emissions, multiple sites affected, and a commonly used precautionary approach to uncertainty. We also show that a greater degree of precaution can result in less reliance on prevention. An empirical case study indicates that treatment alone is the most cost-effective means of dealing with nitrate in most Maryland community water system wells. The use of leaching prevention measures is restricted to the most intensive poultry producing areas. The incremental cost of precaution is substantial.     

己内酰胺浓缩工艺初探

文章通过对己内酰胺精制装置改扩建项目的对比分析,探讨改用“环己酮氨肟化技术”后,己内酰胺浓缩部分采用新工艺去杂的可能性,提出适合新技术条件下的己内酰胺浓缩工艺,并运用流程模拟软件“ASPEN”对新老工艺进行模拟计算,分析新工艺去除杂质的可行性。     

能源新论——兼论树立科学的能源观

能源在人类社会中是一个历史范畴,不同文明时期的主导能源之间有着深刻的历史联系。工业社会的主导能源本质上是化学能源,这决定了它的局限性。面对工业能源危机,人类必须开拓出比化学能源更深层次的新能源,这就是物理能源。物理能源的开发利用及其向主导能源的转化,是今日经济社会发展的必然趋势。     

挖掘物流“第三利润源泉”的潜力

21世纪物流产业的发展，将成为中国经济发展的一个重要的产业部门和新的经济增长点。学习和借鉴国内外先进的物流管理技术和经验，为企业探索出一奈充分挖掘“第三利润源泉”之路。     

一种适用于高铁沿线的多台站快速地震预警方法

对于地震预警技术来说,根据参与监测预警的台站数量不同,可以将高速铁路地震监测预警系统分为单台站地震P波预警技术和多台站地震P波预警技术。单台站P波预警由于信息量较少以及噪声影响,在定位方面存在较大误差。多台站P波预警技术是在单台站P波预警的基础之上,综合多个单台站信息进行综合震源参数估算并发出地震预警信息的预警方式。通过应用多台站P波预警定位技术,能够在震源估算方面得到更准确的结果。     

The knowledge management strategy and the formation of innovative networks in emerging industries

This paper presents an agent-based simulation model with local network externality to analyze strategic interactions over investment on new economic knowledge. R&D knowledge flows and spillovers are the results of non-cooperative games played between neighboring agents in the model. The model demonstrates a situation where no agents have incentives to hide their economic knowledge, a situation that is observed in open source software development projects. The likelihood of obtaining a stable situation where new economic knowledge is openly shared is increased when heterogeneity of agents is introduced.      

油价上涨对世界经济的影响及中国能源政策选择

油价上涨给世界经济带来很大影响,引发了经济危机、加重了西方国家的财政负担和生产成本、加大了非产油国家的进口成本。高油价也给航空、速递等一些运输行业造成沉重负担,油价上涨的最终承担者是消费者。油价不断上涨促使各国调整能源结构,高油价给石油输出国带来丰厚收益的同时也带来一些负面影响,如腐败、暴力冲突、战争等。油价上涨要求中国大幅提高能源利用率,采用多元化能源战略,尽快建立国家石油战略储备,加强能源领域国际合作。     

基于TMS320VC5402的LED显示屏设计

文章介绍了一种以TMS320VC5402DSP为控制核心的LED显示屏设计方案,采用DSP和单片机分别处理显示效果和显示刷新,使用DSPHPI接口实现的与PC主机快速并行通讯,其显示效果灵活多样、数据传输速度快、显示刷新率高,已成功的应用于实践中。