EXCEL2000在环境系统最优化处理中的应用

介绍了EXCEL2000运用规划求解解决环境保护中出现的多约束条件、多变量问题的方法。     

用Excel2000线性规划最低成本法设计饲料配方

利用Excel2000电子数据表格软件提供的线性规划对畜禽的饲料配方寻求最优解，具有科学、运算速度快、增减原料随意和数据修改容易等优点，可以省去手工计算饲料配方的繁琐，与研制出来的专家系统饲料配方软件及相关计算机设计饲料配方的程序相比，该方法无须要求使用者首先购买这些软件和程序，只要用户购买电脑并安装上Excel7000电子数据表格软件后即可运用线性规划设计饲料配方。     

基于CDMA2000的移动视频监控系统

随着计算机技术、微电子技术、通信技术不断创新和发展,在一定程度上极大地促进了嵌入式系统的发展.嵌入式系统已成为当今IT界最有发展前途的应用领域之一,该系统基于Intel Sitsang开发平台,采用嵌入式Linux技术,利用cdma2000移动公网,实现远程实时移动视频监视功能,并可远程控制监视范围及方向.能用于交通、银行运钞车及突发事件现场报道等多种场合.在实现过程中考虑了GUI软件和PC机上软件的结构设计,文中给出上述系统的实现方法.     

应用解相关检测器抑制DS/CDMA中的BPSK型干扰

本文应用多用户检测技术中最简单的解相关检测器抑制ＢＰＳＫ型ＮＢＩ。通过计算机模拟分析了ＤＲＤ的抑制性能,并与常规的ＮＢＩ抑制器进行了比较。     

The coalitional politics of the European Union’s environmental forest policy: Biodiversity conservation,timber legality,and climate protection

European forest policymaking is shaped by progressing European integration, yet with notable ideological divisions and diverging interests among countries. This paper focuses on the coalitional politics of key environmental forest issues: biodiversity conservation, timber legality, and climate protection policy. Combining the Advocacy Coalition Framework and the Shifting Coalition Theory, and informed by more than 186 key informant interviews and 73 policy documents spanning a 20-year timeframe, we examine the evolution of coalitional forest politics in Europe. We find that the basic line-up has remained stable: an environmental coalition supporting EU environmental forest policy integration and a forest sector coalition mostly opposing it. Still, strategic alliances across these coalitions have occurred for specific policy issues which have resulted in a gradual establishment of an EU environmental forest policy. We conclude with discussion of our findings and provide suggestions for further research.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13280-021-01644-5.     

沈阳市2000年环保工作目标及主要任务

在明确沈阳市 2 0 0 0年环保工作的指导思想后 ,着重就确保 2 0 0 0年“一控双达标”和“九五”计划目标的实现所确定的环保工作目标和为实现这一目标应完成的 10项工作任务作了较详尽地阐述。     

AUSTAL2000在恶臭污染环境影响评估中的应用研究

运用德国AUSTAL2000模型对某化工项目周边400 km2的矩形区域和36个环境敏感点NH3、H2 S浓度和恶臭发生频率进行了模拟计算,分析了该项目恶臭污染的影响程度和范围,并对各排放源的计算结果进行了对比分析.结果表明,预测范围内NH3、H2 S只有小时浓度最大值超标,占标率分别为139%和120%,超标面积分别为0.16 km2和0.13 km2,但恶臭发生频率超标较严重,最大值达到了86.7%,超标面积达40.8 km2;环境敏感点NH3、H2 S浓度均未超标,恶臭发生频率也仅有两个点位的最大值略高于标准限值;与面源的无组织排放相比,采取排气筒的排放方式可以明显降低周边区域污染物浓度和恶臭发生频率,减少恶臭污染面积.     

Assessment of Blue Mussel <Emphasis Type="Italic">Mytilus edulis</Emphasis> Fisheries and Waterbird Shellfish-predator Management in the Danish Wadden Sea

We assessed the blue mussel Mytilus edulis fishery management scheme introduced in 1994 in the Danish Wadden Sea that regulate fishing vessels, fishery quota, set-aside for mussel-eating birds and established zones closed to mussel fishery. The results showed (i) a reduction in the blue mussel biomass and mussel bed areas in zones closed to fishery, (ii) decrease in eiders Somateria mollissima numbers and increase or stable numbers for oystercatcher Haematopus ostralegus and herring gull Larus argentatus and (iii) that energy estimations based on ecological food requirements for the mussel-eating birds should be at least three times larger, than the amount set-aside in the mussel management scheme. It is concluded that the mussel management scheme had been unable to stabilize or increase the blue mussel stocks and to secure stable or increasing numbers for all target bird species. Thus, it is recommended to revise the present blue mussel management scheme in the Danish Wadden Sea, to continue and improve mussel stock and bird surveys, and to consider novel studies of the mussel-eating birds’ energetics for improved set-aside estimates and future assessments.     

用CAXA电子图板和AutoCAD2000设计电刷端盖压铸模

主要介绍了CAXA电子图板和AutoCAD2 0 0 0在电刷端盖压铸模设计中的使用方法 ,论述了电刷端盖压铸模设计中涉及的压铸机选择 ,分型面选择和浇注系统的设计等技术问题。