产品的二次筛选试验影响分析

通过某种产品的二次筛选试验前后的参数数据分析，从一个侧面分析了二次筛选试验对产品造成的影响，定量地表征了影响的程度，为以后的二次筛选乃至一次筛选对产品寿命影响的全面分析奠定基础。     

A Study on Theoretical Model and Applied Evaluation of Land Use Performance of High-tech Zone in Urban Fringe： A Case Study in Haidian District, Beijing

High-tech industrial zone is an important carrier for constructing innovative cities. It also plays an important role in implementing the national independent innovative strategy. However, most of the high-tech industrial zones have many problems in their development process, such as efficiency of land use, weakness of oriented function and lack of land intensive. To solve these problems, the authors of this paper introduced the concept of land use performance and established the theoretical model to assess the land use performance of high-tech industrial zones. The model consists of the following three-dimensional parts： land use benefit, land use efficiency and innovative function. Based on this theory model, an index system which was composed of three secondary indictors, eight tertiary indictors and 37 fourth-grade indictors was set up to evaluate the land use performance of high-tech zone. To avoid the defects of plus model and function model, the authors brought out a three-dimensional evaluation model to examine the index of the land use performance of the high-tech industrial parks, which equals to the evaluation indicator system of land use performance of high-tech zone based on the above research. The authors examined the land use performance of five different high-tech industrial parks in Haidian District, Beijing City. The results indicated that the indicator system performs better in the aspect of evaluating land use benefit, land use efficiency and function of the high-tech industrial zone compared with other models.     

增强富拉尔基区可持续发展能力投入机制的研究

本文在富拉尔基区可持续发展能力分析的基础上,提出了投入机制。     

不同承诺能力下可耗竭资源的最优消耗

通过对可耗竭资源经济学的文献回顾,目前尚没有发现在可变时间偏好理论框架下探讨可耗竭资源的最优消耗等问题.该文尝试在双曲线贴现的可变时间偏好下,对一个可耗竭资源的纯消耗问题进行分析,讨论在不同承诺能力下资源的最优消耗速度及对资源的保护效果.模型结果证明,在国家的完全承诺能力下,资源的最优消耗速度最慢,选择的初始资源消耗最低,与时间偏好不变情况下的社会计划者问题等价.相反,在完全无承诺能力下,资源的最优消耗速度最快,选择的初始资源消耗最高,其短视的资源消耗行为必然会导致可耗竭资源的过度消耗.部分承诺能力下的情况则介于完全承诺能力情况与完全无承诺能力情况之间.因此,在双曲线贴现的时间偏好下,资源消耗的最优速度依赖于承诺能力,承诺能力的提高会导致更低的有效时间偏好率,从而导致更低的资源消耗速度和初始资源消耗.承诺技术纠正了人们的不耐心程度与短视行为,从而达到保护可耗竭资源的目的.     

如何提高产品的三防能力

文章介绍了提高产品三防能力的思维方法和一些理念及事例，有助于人们在工作中避免出现大的三防问题。     

城市可持续发展能力及其影响因素的实证

应用DEA方法构建了一个综合评价城市可持续发展能力的指标——资源与环境效率系数,利用除拉萨以外的全国30个直辖市、省会城市、自治区首府2005-2008年的面板数据,计算了城市资源与环境效率系数,并对资源与环境效率的影响因素进行了实证检验。城市资源与环境效率系数的计算显示:就单个城市而言,资源与环境效率最高的城市是合肥,其次是沈阳、长春、长沙、济南,最低的是贵阳、兰州、西宁、银川、乌鲁木齐;分区域来看,资源与环境效率最高的是位于东北的城市,其次是位于东部和中部的城市,最低的是位于西部的城市。资源与环境效率影响因素的实证检验显示:产业结构对资源与环境效率有显著影响;政府财力对资源与环境效率的影响并不显著;经济外向度、人口质量对资源与环境效率有显著的正向影响。     

电子产品环境试验能力数据库的开发

本文概述了一套电子产品环境试验能力数据库的开发情况。该数据库收集和整理了目前国内电子产品环境试验能力的各种信息，并在计算机技术的基础上，于服务方与客户方之间建立了一种长期以及动态的网络数据共享关系。     

Synthesis evaluation with entire-array-polygon method to ecological economic system of Funing County in Jiangsu Province

Based on the theory of ecological footprint this paper analyzed the ecological economic system in Funing County in the view of demands of economic system to natural resource and supply of ecosystem for natural resources. It was proposed that the concept of ecological deficit (ecological remainder) per ten thousands yuan GDP be used to evaluate development of ecological economic system. With a synthesis appraisement to the ecological economic system using entire-array-polygon method combined with Ulanowicz development ability and with ecological deficit (ecological remainder) per ten thousands yuan GDP, it provids a theoretical base for reconstructing and managing of demonstration eco-region.     

农业灾情与抗灾能力的定量指标探讨

本文就农业灾情及抗灾能力定量指标进行了初步探讨,提出了度量农业灾情及抗灾能力的指标体系。     

全基因组重测序研究长期铬胁迫对希瓦氏菌MR-1的影响机制

在实验室纯培养条件下,设计了希瓦氏菌MR-1在恒定浓度Cr（VI）和Cr（Ⅲ）环境中长期胁迫120d实验,探讨了胁迫后的菌株对Cr（VI）的还原能力和生长情况,采用电化学分析仪表征其电化学性质的变化,并且利用全基因组重测序技术分析了不同条件胁迫后不同阶段的菌株基因变异信息.结果表明,Cr（VI）长期胁迫下明显提高了菌株对Cr（VI）的耐受性和还原能力,在38h左右能完全还原初始Cr（VI）浓度55mg/L;在电位-0.2V还原峰附近,细胞色素c与核黄素的结合作用有明显差异;通过重测序结果发现,Cr（VI）长期胁迫下的菌株发生突变的基因点位明显高于Cr（Ⅲ）环境.Cr（Ⅲ）环境胁迫下的非同义突变基因主要集中在葡萄糖转化及合成相关功能的基因、编码呼吸链酶和合成ATP酶的相关基因、编码信号转导和跨膜转运蛋白相关基因,Cr（VI）环境胁迫120d后,主要涉及细胞膜组分基因,转运蛋白、信号转导相关基因,DNA合成、修复相关基因和氧化还原活性相关.