浅谈安全工程专业学历教育

从安全工程师应具备的知识结构出发，主要讨论了安全工程专业学历教育中的课程设置及办学过程中存在的一些的问题。     

广州市供水水源面临的问题和对策

通过分析广州市现有的水资源情况和饮用水的供水情况、地表水源和地下水水源概况等资料,针对广州市饮用水源面临的严峻形势,提出广州市应建设以地下水作为应急饮用水源,构建复合水源体系的规划。     

水污染控制管理方案优化研究——以胶州湾东北部为例

以水质目标和管理费用为约束条件,建立了水污染控制管理方案优化模型,并将其成功应用于胶州湾东北部的水污染控制管理,提出了有利于胶州湾东北部经济和水环境可持续发展的优化管理方案。实例研究表明,该优化模型可应用于水污染控制管理中,可为海岸带地区制定水污染控制方案提供科学依据。     

中药类制药工业污染物排放自行监测方案编制要点

分析了中药类制药工业企业自行监测方案的编制依据,以及中药制药生产工艺类型和污染排放特征,在此基础上确定了其污染物排放自行监测方案和周边环境质量影响监测方案的主要内容。针对废水、废气、噪声3类主要污染因子,明确了监测点位、监测指标、监测频次设定的注意事项,以及自行监测相关信息记录的内容要求。     

Land-use choices: the case of conservation reserve program (CRP) re-enrollment in Kansas,USA

Among the important alternatives for land conservation is the US Conservation Reserve Program (CRP) that celebrated its 30th anniversary in 2015. This paper explores how landowners decide on alternative land-use choices made available by the expiration of CRP contracts in Kansas. The study uses survey data and multinomial Logit models to predict land-use choices. Two models were tested. The first model does not incorporate variables concerning farmer perceptions and attitudes about land-use choices, while the second model does. The results show that CRP re-enrollment depends on factors, such as years of experience in cropping and percent of cropland irrigated. However, when perception variables are added, the models become more robust in explaining other land choice alternatives. The results suggest that as the perception of unfairness of more inflexible environmental policy rises, these farmers may be more likely to re-enroll their marginal land in the CRP program.     

基于作业成本管理在建筑企业施工中的应用研究

以作业成本管理理论为基础,研究了建筑施工企业的作业成本核算以及计算模型,通过对作业成本管理应用和导入作业成本管理理论与方案设计的分析,比较了施工企业与项目管理作业.结果表明,其作业成本管理模式完全适用于建筑施工企业作业成本的管理,并能够有效地对建筑施工企业的作业成本进行有效控制.图1,参5.     

层次分析法在生活垃圾处置方案优选中的应用

对于如城市生活垃圾处置技术方案优选这类多目标、多方案决策问题,特别是在决策缺乏充分的信息支持前提时,AHP分析法的若干特点,显示其作为一种系统工程的理论工具具有一定的客观性、准确性和有效性,是一种简易而且可行的理论方法和手段。通过以某经济开发区生活垃圾处置方案的优选为例进行了探讨。     

A Revealed Preference Approach to Estimating Supply Curves for Ecosystem Services: Use of Auctions to Set Payments for Soil Erosion Control in Indonesia

Abstract:  To supply ecosystem services, private landholders incur costs. Knowledge of these costs is critical for the design of conservation-payment programs. Estimating these costs accurately is difficult because the minimum acceptable payment to a potential supplier is private information. We describe how an auction of payment contracts can be designed to elicit this information during the design phase of a conservation-payment program. With an estimate of the ecosystem-service supply curve from a pilot auction, conservation planners can explore the financial, ecological, and socioeconomic consequences of alternative scaled-up programs. We demonstrate the potential of our approach in Indonesia, where soil erosion on coffee farms generates downstream ecological and economic costs. Bid data from a small-scale, uniform-price auction for soil-conservation contracts allowed estimates of the costs of a scaled-up program, the gain from integrating biophysical and economic data to target contracts, and the trade-offs between poverty alleviation and supply of ecosystem services. Our study illustrates an auction-based approach to revealing private information about the costs of supplying ecosystem services. Such information can improve the design of programs devised to protect and enhance ecosystem services.     

The dynamic response of pressure relief valves in vapor or gas service. Part II: Experimental investigation

An experimental testing program designed to evaluate the opening stability characteristics of direct acting pressure relief valves (PRV) in gas/vapor service is described. Three different valve sizes from each of three different manufacturers were tested at two different set pressures to determine their opening characteristics (disk lift vs. time). The valves were tested with several different lengths of inlet piping as well as with and without discharge piping to determine the conditions under which unstable operation (chatter) would occur. Part I of this program described a mathematical model for predicting the dynamic response of PRV's, and the data described in this test program were used to evaluate the accuracy of the model, as described in Part III of this study to follow.     

治理滇池草海水环境的成套技术

草海是滇池的一部分,大量污水排入使草海水体污染日益严重,水体已达重富营养化水平,生态平衡遭受严重破坏,水功能基本丧失。为了保护滇池,必须彻底根治草海,对草海的根治拟采取如下综合成套技术:①改造城市排水系统;②对重点工业废水中的有毒有害污染物进行治理;③城市面源治理;④草海底泥疏挖;⑤污染物现场清除技术;⑥大型水生植物恢复技术;⑦水资源的合理调整。制定了草海及滇池治理的三期规划,实施总投资约３０亿人民币。