共查询到19条相似文献,搜索用时 46 毫秒
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企业突发事件应急预案作为指导企业应对各类事故的有效指导文件,是企业应急管理工作最重要的载体。企业需要不断优化应急预案体系和完善应急预案内容来提高应急准备水平,提升应急处置能力。国家“一案三制”的建设和完善历经了一个长期的发展过程,且随着应急法律法规、制度标准的不断出台,应急预案的重要地位不断凸显。文章从导致预案出现问题的原因和预案本身容易出现的问题两方面入手,梳理了企业应急预案编制存在的企业重视不足、应急人员能力不足、风险辨识不到位、预案体系设计不合理等问题,并针对问题提出落实责任、加强培训、加强预案动态管理等优化对策,以便为应急预案质量提升提供参考。 相似文献
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以宜昌市环保监测站应急监测工作为例,对目前中部地区二级环境监测站应急监测能力存在的不足进行了评析,提出了建立应急监测专门机构、完善应急监测机构体系和网络、建立应急监测信息库和提高应急监测实战能力等具有针对性的优化应急监测能力建设的方案,旨在尽快提高中部地区二级环境监测站应急监测水平。 相似文献
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采用最速下降法和复合形法对河流动态水质模型的参数进行了优化估算,并从计算方法的适用范围、计算机编程的复杂程度,整体工作量的大小,计算结果的代表性合理性等方面对这两种方法进行了比较分析。 相似文献
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本文把项目评估与农业资源开发规划模型的优化结合起来,用净现值法、益本比法和内部报酬率法进行项目评估,以净现值作为规划目标进行优化规划,并试用于泗阳县黄河故道滩区荒地资源开发的评估与规划,取得了显著的效果。 相似文献
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河流水质模型参数的优化估算探讨 总被引:1,自引:0,他引:1
采用最速下降法和复合形法对河流动态水质模型的参数进行了优化估算,并从计算方法的适用范围、计算机编程的复杂程度、整体工作量的大小、计算结果的代表性和合理性等方面对这两种方法进行了比较分析。 相似文献
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利用最优控制充分条件 ,对一类市场营销最优控制模型进行了分析研究 ,最后改进并得出了与实际相符的市场营销调控模型 ,为企业最优广告策略和最优寿命提供了决策支持信息。 相似文献
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介绍了识别环境应急监测对象的技术方法,并从构建区域环境应急监测能力保障体系的角度出发。运用安全系统工程理论,探讨如何使有限的环境应急监测能力建设投资发挥最佳的效能。 相似文献
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泵站树状给水管网流量具有随机性,而这种随机性变化会直接影响管网的建设费用和动力费用.针对这-特点,应用随机规划原理,建立泵站树状给水管网机会约束模型,编写基于随机模拟的遗传算法程序求解该模型.机会约束模型能较客观地反映该管网的实际工况,使优化设计结果更符合实际. 相似文献
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Dustin Garrick Katharine Jacobs Gregg Garfin 《Journal of the American Water Resources Association》2008,44(2):381-398
Abstract: Declining reservoir storage has raised the specter of the first water shortage on the Lower Colorado River since the completion of Glen Canyon and Hoover Dams. This focusing event spurred modeling efforts to frame alternatives for managing the reservoir system during prolonged droughts. This paper addresses the management challenges that arise when using modeling tools to manage water scarcity under variable hydroclimatology, shifting use patterns, and institutional complexity. Assumptions specified in modeling simulations are an integral feature of public processes. The policymaking and management implications of assumptions are examined by analyzing four interacting sources of physical and institutional uncertainty: inflow (runoff), depletion (water use), operating rules, and initial reservoir conditions. A review of planning documents and model reports generated during two recent processes to plan for surplus and shortage in the Colorado River demonstrates that modeling tools become useful to stakeholders by clarifying the impacts of modeling assumptions at several temporal and spatial scales. A high reservoir storage‐to‐runoff ratio elevates the importance of assumptions regarding initial reservoir conditions over the three‐year outlook used to assess the likelihood of reaching surplus and shortage triggers. An ensemble of initial condition predictions can provide more robust initial conditions estimates. This paper concludes that water managers require model outputs that encompass a full range of future potential outcomes, including best and worst cases. Further research into methods of representing and communicating about hydrologic and institutional uncertainty in model outputs will help water managers and other stakeholders to assess tradeoffs when planning for water supply variability. 相似文献
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本文重点分析和探讨了外商在符合目前我国相关法规的前提下,投资国内自来水行业的交易模式及其优缺点。其中,三权分离模式是结合2006年正式施行的新公司法提出的一种创新性的操作模式,可为国内项目的实际运作提供新的思路和途径。 相似文献
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利用生物预处理工艺提高城市供水水质,大力发展城市分质供水,实现城市直饮水,是我国新世纪城市化进程及环保产业发展的趋势。本文论述了生物预处理的意义、工艺、效果、影响及其在城市供水中的意义。介绍了分质供水在国内外的发展,探讨了生物预处理与分质供水在城市中的应用及发展前景。 相似文献
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本文针对传染病医院建筑给排水的设计进行研究.从实例出发,分析了传染病院的功能特点及不同类型传染病所采取的措施要点,从有利于洁净及防止二次污染、污水处理及消防给水设计等几个方面提出自己的看法及相应的技术措施. 相似文献
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Thomas C. Brown Michael T. Hobbins Jorge A. Ramirez 《Journal of the American Water Resources Association》2008,44(6):1474-1487
Abstract: Available water supply across the contiguous 48 states was estimated as precipitation minus evapotranspiration using data for the period 1953‐1994. Precipitation estimates were taken from the Parameter‐Elevation Regressions on Independent Slopes Model (PRISM). Evapotranspiration was estimated using two models, the Advection‐Aridity model and the Zhang model. The evapotranspiration models were calibrated using precipitation and runoff data for 655 hydrologically undisturbed basins, and then tested using estimates of natural runoff for the 18 water resource regions (WRR) of the 48 contiguous states. The final water supply coverage reflects a mixture of outputs from the two evapotranspiration models. Political, administrative, and land cover boundaries were mapped over the coverage of mean annual water supply. Across the entire study area, we find that 53% of the water supply originates on forested land, which covers only 29% of the surface area, and that 24% originates on federal lands, including 18% on national forests and grasslands alone. Forests and federal lands are even more important in the West (the 11 western contiguous states), where 65% of the water supply originates on forested land and 66% on federal lands, with national forests and grasslands contributing 51%. 相似文献