重庆市“十一五”污染物总量控制研究

选取了二氧化硫、化学需氧量和氨氮作为重庆市“十一五”期间主要的污染物总量控制指标，介绍了这几种污染物总量控制目标的测算方法，根据重庆市的有关规划以及环境保护的需要，测算出了“十一五”期间水污染物、大气污染物的总量控制目标，对“十一五”期间总量控制的实施提出了建议。     

BOD5测定稀释倍数选取在医院污水中的应用

通过回归分析得出了医院废水通过生化 消毒处理原水中存在着BOD5=0.380×COD相关关系.由此推导出测定BOD5时可以省略稀释倍数F1=1/(COD×0.25)的结论.并在5个医院实际监测数据中得到证实.     

A pilot study of the relationship between multiple sclerosis and the physical environment in northwest Ireland

Multiple sclerosis (MS) is a neurological disease of unknown origin, but it is thought likely to have an environmental component in addition to genetic predisposition. It appears common in areas with underlying radon-producing granites. Radon exposure before the age of 15 years is postulated as a contributory cause in genetically susceptible individuals. Pilot studies were undertaken, with results which indicate that radon exposure may be a factor, and that the hypothesis warrants further investigation.     

Judicious Use of Multiple Hypothesis Tests

Abstract:  When analyzing a table of statistical results, one must first decide whether adjustment of significance levels is appropriate. If the main goal is hypothesis generation or initial screening for potential conservation problems, then it may be appropriate to use the standard comparisonwise significance level to avoid Type II errors (not detecting real differences or trends). If the main goal is rigorous testing of a hypothesis, however, then an adjustment for multiple tests is needed. To control the familywise Type I error rate (the probability of rejecting at least one true null hypothesis), sequential modifications of the standard Bonferroni method, such as Holm's method, will provide more statistical power than the standard Bonferroni method. Additional power may be achieved through procedures that control the false discovery rate (FDR) (the expected proportion of false positives among tests found to be significant). Holm's sequential Bonferroni method and two FDR-controlling procedures were applied to the results of multiple-regression analyses of the relationship between habitat variables and the abundance of 25 species of forest birds in Japan, and the FDR-controlling procedures provided considerably greater statistical power.     

Public and Private Compromises in Agricultural Water Management

Agricultural water management is a complex decision-making problem involving multiple criteria of different nature as well as multiple decision agents with different interests. To handle this multiplicity of objectives and interests a pragmatic approach based on compromise programming is proposed in this paper. The methodology is applied to an agricultural water management problem in Tauste, Spain. Public, environmentalist and private decision makers are considered. The approach proposed reveals itself as a pragmatic alternative to other approaches based on aggregate utility functions with very sound theoretical underpinnings but with few possibilities of actually being put into practice.     

Linking Multiple Accounts with GIS as Decision Support System to Resolve Forestry/Wildlife Conflicts

With shrinking forest resources and increasing demands for timber, conflicts between forestry and wildlife become more contentious and more frequent. New decision support methods are needed to address complex multiple land use conflicts. Multiple accounts methods linked with GIS and production models enable us to address trade-offs between timber and non-timber values, thus facilitating the evaluation and comparison of different management scenarios in a rapid and spatially referenced manner. The approach is documented in a case study in the trans-boundary zone between two national parks in British Columbia, where caribou/logging conflicts are widespread.     

USING VALUES IN PLANNING WASTEWATER FACILITIES FOR METROPOLITAN SEATTLE1

ABSTRACT: This paper uses the fundamental values of decision makers to guide a long-term wastewater planning process at Seattle Metro, a major utility district. Multiattribute value assessment is used to elicit the objectives of several elected officials and other key decision makers. The results are structured into a fundamental objectives hierarchy and a means-ends objectives network. A set of measures to indicate the performance of planning alternatives in terms of the fundamental objectives is developed. Preliminary value tradeoffs between objectives are elicited from several elected officials. The results of these steps are useful for many aspects of long-term planning: facilitating communication about values and priorities; designing attractive alternatives that are more likely to serve stakeholder interests; identifying information needed to evaluate alternatives; clarifying the relative importance of information about different impacts; providing a basis for quantitative evaluation of the alternatives with multiple objective analysis; and focusing attention on key tradeoffs that will affect the choice of alternatives.     

宜兴市殷村港叶绿素a与影响因子的多元分析

根据2011年1月—2015年12月殷村港水体中叶绿素a(Chl-a)及溶解氧、氨氮、总磷、总氮和水温等环境因子的监测数据,通过Pearson相关分析分析了叶绿素a浓度与水质指标、环境因子之间的相关性,并确定了影响因子;通过多元回归分析模型,建立了叶绿素a浓度和影响因子之间的相关性,实现叶绿素a浓度的预测,多元回归方程的复相关系数R都较高,均在0.8以上。多元回归模型能够较好地预测叶绿素a的浓度和走向趋势,对蓝藻水华的爆发提供参考。     

煤矿安全目标管理的实施与控制研究

在安全目标管理目标体系及目标制定、展开与分解研究的基础之上,论述了选择检查分析目标的方法,讨论了检查分析目标的内容,最后给出了某煤矿安全目标管理的实施及控制的应用实例.