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731.
本文通过对沈阳市噪声环境污染存在问题的评价分析,探讨构建以噪声功能区划、污染监控体系,污染防治体系,公众参与体系和法律、法规和标准体系等为主要内容的噪声污染防治技术支撑体系的框架和机制,进而达到改善声环境质量的目的。 相似文献
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733.
异相催化是催化反应的重要组成部分,其应用十分广泛。固一液异相催化作为环境科学领域中的一项比较新颖的技术,在研究污染物在多介质环境中的迁移转化行为、开发受污染环境修复及污废水处理新技术等诸多方面都具有很大的发展潜力。因此,对不同类型固一液异相催化剂在环境科学领域的应用研究逐渐成为国内外环境科学领域的研究热点之一。其中,金属和金属氧化物因对某些氧化一还原反应具有较好的催化作用,在饮用水脱氮、污废水脱卤及深度氧化处理等水处理领域的应用较为广泛;固态酸催化剂能催化聚合、裂化、水解反应,因此与某些有机污染物的降解密切相关;将同相催化剂固定化为异相催化剂,同样成为新技术开发的方向之一;天然催化剂对污染物在多介质环境中行为影响的研究近年来也屡有发表。此外,载体因对催化剂的活性及应用具有重要影响,也日益受到关注。文章对环境科学领域中固一液异相催化剂的应用研究进行了综述。 相似文献
734.
735.
从当前电子对抗装备野战化保障的实际出发,首先简要、定性地分析了电子对抗装备当前所面临的电磁环境,提出了电子对抗部队实现装备保障野战化必须提升野战装备指挥、野战装备维修、野战器材供应及野战装备防护等"四个能力".在此基础上,进一步阐明了电子对抗装备野战化保障需把握的问题. 相似文献
736.
737.
环境智能决策支持系统 总被引:5,自引:0,他引:5
分别对决策支持系统和专家系统技术在环境科学领域中的应用进行了概述,分析了决策支持系统和专家系统的主要不同点,描述了决策支持系统集成专家系统而形成的智能决策支持系统方式,同时以大气污染总量控制规划智能决策支持系统为实例,分析了开发环境智能决策支持系统的必要性。以及环境智能决策支持系统的设计方法。 相似文献
738.
Ernest M. Thiessen Daniel P. Loucks 《Journal of the American Water Resources Association》1992,28(1):163-177
ABSTRACT: Since the early 1970s, a large volume of literature has accumulated related to multiobjective water resources management problems. A relatively small portion of this specifically addresses the negotiation process required when there are multiple decision makers with conflicting objectives. This paper focuses on that process and describes a computer program designed to assist such negotiation processes. This interactive computer assisted negotiation support system is called ICANS. ICANS is designed for dynamic, multi-issue, multi-party negotiation problems. Based on information provided in confidence by each party via an interactive graphical interface, the program can help determine if there exist any possible alternatives that are equivalent or even preferred to each party's decision in the absence of a negotiated agreement. If such alternatives exist, through a series of iterations in which each party's input data, assumptions, and preferences may change, ICANS can assist the parties in their search for a mutually acceptable and preferred agreement. A simple example illustrates the data requirements and the use of ICANS in negotiation experiments. 相似文献
739.
Dina E. Flockhart Chi Ho Sham Yan Xiao 《Journal of the American Water Resources Association》1993,29(6):957-964
ABSTRACT: Public awareness of the importance of protecting the nation's water supplies is growing. Recent studies have shown a substantial increase in the perceived value of protecting water supplies for future use. In the Northeast, much of the water supply comes from ground water. This paper examines three test cases, each with different approaches for using geographic information systems (GIS) for ground water protection planning. In Wellfleet, Massachusetts, build-out scenarios were used to support regulatory and land acquisition decisions for siting a public water supply well. In Hadley, Massachusetts, the focus was on a decision support model for septic suitability assessment in support of regulatory efforts and infrastructure expansion. For Cortland County, New York, an interactive graphic user interface was created to facilitate the manipulation and recombination of a large volume of data by county officials to target ground water pollution prevention efforts. As personal computers become more powerful and inexpensive, and GIS data become more readily available, community and county governments are turning to GIS as a tool for developing comprehensive resource protection plans. Once appropriate data are input, a GIS can effectively and efficiently be used to derive outcomes of various land use plans and regulations. 相似文献
740.
Linking Multiple Accounts with GIS as Decision Support System to Resolve Forestry/Wildlife Conflicts
Sandra Brown Hans Schreier William A. Thompson Ilan Vertinsky 《Journal of environmental management》1994,42(4)
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. 相似文献