Results 21 to 30 of about 17,163 (168)
Geographic risks to functional groups of mammals and birds from habitat loss in Mexico
Conservation Biology, EarlyView.Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás +4 more
wiley +1 more source
政府旅游数据开放的评价指标体系构建与组态分析：基于21个省级行政区的数据
大数据在信息时代和智慧旅游背景下，政府主动对外开放内部的旅游数据，有利于充分释放旅游数据资源的商业价值与社会价值。使用变异系数法与熵权法进行组合赋权，构建了政府旅游数据开放评价指标体系，计算21个省级行政区的具体得分，并采用模糊集定性比较方法进行高评价值与低评价值条件组态分析。结果表明：指标体系包含4项一级指标、17项二级指标与51项三级指标，可以对当前省级行政区的旅游数据开放绩效进行有效评价；利用层、数据层是权重较高的一级指标，法律政策效率与内容、平台关系等是权重较高的二级指标；高评价值组态为综合发展型 ...
胡安安, 郭梦珂, 黄丽华, 黄荔桐
doaj +1 more source
Policy Studies Journal, EarlyView.Abstract Studies of lobbying typically look at the extent to which interest groups realize political goals on issues they actively lobby for. Little is known, however, about the extent to which interest groups attain their political goals without making an active lobbying effort.
Marcel Hanegraaff +2 more
wiley +1 more source
大数据公共数据的要素化既有迫切需求和巨大价值，又具备良好基础和实施保障。为了实现公共数据的要素化，数据要素智能构建技术与公共数据产权运行机制需要协同创新和融合发展。梳理了公共数据的分类和参与主体，提出一套公共数据产权运行机制，包括公共数据产权结构性分置制度、公共数据确权授权机制和个人信息授权机制，并搭建一套数字化系统来承载该机制，以建立健全数据要素各参与方的合法权益，促进公共数据在政府各部门、各层级、各主体之间的安全、合规、有序流通。
郑宇
doaj +1 more source
A new Hilbert-type inequality and its extensions(一个新的Hilbert型不等式及其推广)
Zhejiang Daxue xuebao. Lixue ban, 2007 利用权系数及实分析的方法，建立一个新的、不含参量的Hilbert型不等式，并证明其常数因子为最佳值.还考虑了其等价式及含参量的最佳推广情形.
YANGBi-cheng(杨必成)
doaj +1 more source
The Risk Management for the R&D Outsourcing Project of Intelligent Spraying Control Module by Company G [PDF]
, 2016 本文研究G公司智能喷洒控制模组研发外包项目的风险管理，采用风险矩 阵方法对项目立项到项目样品完成整个开发过程进行评估和管理。首先应用流 程图和WBS识别研发外包项目风险来源，获取项目风险清单。其次对风险来 源的风险发生概率和风险影响等级进行评估。接着采用Borda序值法和评估人 员偏好打分法对评估结果进行重要性排序。然后针对事件的风险重要性程度制 定应对措施。在项目研发阶段对风险降低应对活动进行监控，评估风险降低应 对活动失败的概率，以此作为新的评价准则展开新的一轮风险排序，作出新的 应对措施 ...
张开阳
core
Coalition Opportunity Structures and Advocacy Coordination in Consensus and Majoritarian Democracies
Policy Studies Journal, EarlyView.ABSTRACT Research on advocacy coalitions suggests that belief homophily—the tendency of actors to coordinate based on shared policy beliefs—drives coalition formation. However, coalition opportunity structures, which are shaped by institutional contexts, may influence the extent to which belief homophily matters.
Keiichi Satoh +7 more
wiley +1 more source
Gaoya dianqi, 2020 近年来,鸟害故障在云南电网输电线路跳闸故障中所占的比例逐渐增高,已成为影响输电线路安全稳定运行的主要故障之一。文中通过收集云南电网2014—2016年3年来鸟害跳闸故障的历史数据,根据鸟害跳闸故障的地理特征以及杆塔结构特征,建立鸟害风险评估层次结构模型。采用专家调查法与模糊层次分析法相结合的综合评价方法,利用专家级调查法确定1级指标权重系数,利用模糊层次分析法确定2级指标权重系数。在模糊层次分析法中,利用鸡群优化算法对权重系数进行优化,降低数据处理复杂度,使权重系数求取更加准确。然后通过历史鸟害故障数据,
黄绪勇, 沈志, 王昕
doaj
Zhejiang Daxue xuebao. Lixue ban, 2009 通过估算权系数,建立一个核含2-参数且-2齐次的Hilbert型不等式及其等价式,并考虑了逆向不等式的情形.
YANGBi-cheng(杨必成)
doaj +1 more source
Policy Studies Journal, EarlyView.ABSTRACT As the Narrative Policy Framework (NPF) begins to unpack issues of power and narratives, the main focus has been on power‐over and domination rather than more transformative notions of power‐to and empowerment. This article draws on insights from gender and policy studies and suggests that the NPF benefits from adopting a multifaceted notion ...
Hilda Broqvist
wiley +1 more source