排序方式： 共有66条查询结果，搜索用时 15 毫秒
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东洞庭湖国家级自然保护区湿地资源评价 总被引：4，自引：0，他引：4
湿地是介于陆地与水体之间的过渡地带,是陆地上最大的碳储库和陆地生态系统循环的重要组成部分。但是,由于对湿地资源的严重破坏和不合理利用,湿地面积急剧减少。近年来,湿地资源评价已经倍受关注,湿地资源评价为实现湿地资源可持续利用,保持湿地功能持久性提供科学依据。本文通过对湿地生态系统的研究,从生态效益、社会效益、经济效益角度... 相似文献
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邵改革 《测绘与空间地理信息》2015,(5):112-114
为降低实验室管理成本和提高工作效率,根据测绘仪器实验室的需求,运用MIS技术,开发实验室仪器管理系统.系统采用Delphi开发工具,后台利用Access存储相关数据,结合ADO组件技术,链接数据库使用ODBC接口.测绘仪器信息管理系统主要实现仪器信息录入、借出、归还、维修、报废、查询、统计分析、报表输出、数据备份和系统管理等功能,基本能满足仪器实验室工作流程要求,有助于改善测绘仪器实验室管理现状. 相似文献
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为了提高新疆前兆台网中心日常工作效率,减轻工作人员负担,充分考虑到目前新疆数字前兆台站的数据接收方式,依据前兆数据管理细则,结合FTP技术,利用Delphi软件开发环境研制了一套基于FTP协议的地震前兆数据收取软件,可以满足新疆前兆地震台网中心的日常工作需求,同时提高工作效率。 相似文献
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《Marine Policy》2017
To fulfil international conservation commitments, governments have begun to recognise the need for more proactive marine planning policies, advocating sensitive engineering design that can deliver secondary benefits above and beyond the primary purpose of developments. In response, there is growing scientific interest in novel multi-functional coastal defence structures with built-in secondary ecological and/or socio-economic benefits. To ensure research efforts are invested effectively, it is first necessary to determine what secondary benefits can potentially be built-in to engineered coastal defence structures, and further, which of these benefits would be most desirable. It is unlikely that secondary benefits are perceived in the same way across different stakeholder groups. Further, their order of priority when evaluating different options is unlikely to be consistent, since each option will present a suite of compromises and trade-offs. The aim of this study was to investigate stakeholder attitudes towards multi-functional coastal defence developments across different sector groups. A preliminary questionnaire indicated unanimous support for implementing multi-functional structures in place of traditional single-purpose ones. This preliminary survey informed the design of a Delphi-like study, which revealed a more nuanced and caveated level of support from a panel of experts and practitioners. The study also elicited a degree of consensus that the most desirable secondary benefits that could be built-in to developments would be ecological ones – prioritised over social, economic and technical benefits. This paper synthesises these findings, discusses the perceived barriers that remain, and proposes a stepwise approach to effective implementation of multi-functional coastal defence developments. 相似文献
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层次分析法（AHP）在尾矿库安全运行分析中的应用 总被引：9，自引：1，他引：8
尾矿库是用于堆存金属非金属矿山进行矿石选别后排出尾矿的场所,是一种高势能的人造泥石流源,一旦发生事故将会严重威胁到库区周边环境和下游居民的生命及财产安全。考虑到我国小型尾矿库数量多、安全度水平低以及尾矿库发生事故的复杂性、多样性及不确定性等特点,根据影响尾矿库安全运行的因素建立层次结构模型,运用Delphi法构造相关因素的各层次判断矩阵,应用定性与定量相结合的层次分析法进行分析,最后确定出各影响因素的权重并进行总排序。结果表明,在尾矿库运行期间排洪系统对其整体安全影响最大,其次为筑坝堆存系统、尾矿库管理与维护、回水系统和尾矿输送系统。该研究结果可以为相关单位制定合理的安全防范措施提供必要的参考价值,从而有针对性的消除各种事故隐患,提高安全管理水平,确保尾矿库的安全运行。 相似文献
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基于GIS理论和方法,运用二次开发技术将MapX控件嵌入到面向对象的开发语言Delphi中,并结合电子地图数据管理方法、视频监控技术以及数据通讯技术,初步实现了边防管理信息系统构建。 相似文献
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