Results 61 to 70 of about 58,653 (207)
Scenarios and strategies for future‐proofing ecosystem management under climatic novelty
Abstract Climate change is driving unprecedented declines in dominant, habitat‐forming foundation species across marine and terrestrial ecosystems globally. As climatic novelty becomes the norm, ecosystem reassembly will become increasingly common. Predicting and understanding these transitions, and their implications for future ecosystem functioning ...
Lauren T. Toth +14 more
wiley +1 more source
针对当前电力变压器套管绝缘状态评估中各评价参量存在复杂性和不确定性的问题,文中应用集对分析方法对变压器套管进行绝缘状态评估。首先选取用于套管状态评估的指标,对评估结果进行等级划分并制定响应策略,采用层次分析法和熵权法融合的综合赋权法来确定各评估指标的权重,构造联系度数学表达式来描述评估指标与状态等级之间的关联程度,建立起集对分析状态评估模型。实例计算分析表明,基于集对分析方法和综合赋权的状态评估模型能够有效反映变压器套管的绝缘状态,评估结果可为变压器的状态检修提供有效参考。
李志超 +4 more
doaj
The optimization of performance management system of G group headquarters [PDF]
G集团成立于改革开放之初,从一家外贸小企业成长成了集贸易、地产、物流、金融等多行业于一体的综合性集团。随着公司规模的不断扩大,管理层利用绩效管理等现代工具进行企业管理势在必行。然而引入绩效管理工具近十年,G集团绩效管理工作问题却越来越多,上至企业高管,下至基层员工,对绩效管理均有不同的抱怨。 本文以G集团总部的绩效管理作为研究对象,深入挖掘这些抱怨背后所存在的真正问题,分析出G集团总部在绩效指标体系和绩效计划制定、绩效沟通与反馈、绩效评估、绩效评估结果反馈与应用等各个环节中存在的具体问题 ...
辜蔚君
core
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
高压断路器的运行状态评估是指导高压断路器状态维修、提高其运行可靠性及保证电力系统安全稳定运行的重要手段。文中依据物元可拓理论和证据融合理论建立了一个高压断路器状态评估模型。首先对高压断路器状态评估进行物元分析,通过构造关联函数并计算评估指标的关联函数值,仅凭关联函数值的正负就能初步确定评估指标是否异常;然后依据集对分析理论对评估指标初步所处状态等级的不确定性进行处理,得到评估指标的等级关联度,并将评估指标的等级关联度进行修正作为信任分配函数 ...
常怡东, 张开轩, 金潇
doaj
针对变压器本体绝缘状态评估中的状态信息指标的不确定性,文中提出了基于模糊评判理论与DSmT的变压器本体多级绝缘状态评估模型,该模型分为本体绝缘状态等级评估与绝缘缺陷风险等级评估。应用模糊评判理论构建等级评估的隶属度函数模型,选择反映变压器绝缘状态的绝缘类指标参量作为模型的输入,应用熵权法改进的DSmT对指标隶属度进行融合得到最终的等级评估结果,该模型有效克服了等级区间界限值过于绝对化的局限性,解决了传统DST高冲突性证据的融合问题。通过实例验证,该模型的评估结果具有一定的有效性 ...
夏彦卫 +5 more
doaj
Case Study on Evaluating Government Performance Through an Example of Huzhou’s Public Participate in the Government Performance Assessment [PDF]
摘要 公民作为评估主体,通过特定的方法来区分和评定政府绩效的等级的过程就是公民参与政府的绩效评估。这种方式有一定的可行性和必要性,也是公民参与政府治理的卓有成效的途径和方式,是政府开展绩效评估活动的未来发展趋势。从目前发展状况来看,世界各国政府在开展绩效评估过程中,纷纷对公民参与投以较高关注,并为此展开全面调查活动。我国政府也在实践中,不断地探索比较,逐步实现从简单模式向多元化模式转变。不可否认,与发达国家相比较,我国针对公民参与政府绩效评估活动研究差距明显,还未进行科学全面的研究 ...
宣晶
core
Drivers of bat researchers’ intent to adopt field hygiene practices
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman +6 more
wiley +1 more source
A Study on Practices and Explorations of Property Tax Reform in China and Its Difficulties [PDF]
改革开放以来,随着社会主义市场经济体制的不断完善,我国经济实现高速增长,城市化进程持续推进,在住房需求的带动下,房地产业得到飞速发展,并在促进经济增长、改善居民居住条件等方面发挥了积极作用,但房价的过快上涨也引发了诸多问题,制约了居民生活水平提高,影响了社会经济的平稳发展。在这样的背景下,2011年,上海、重庆正式开展房产税试点,房产税改革进入公众视野。 对个人住房开征房产税,税基评估是一个重要课题,我国早在2003年就开始了房产税的空转试点,进行房地产模拟评估,为改革做技术上的准备;2009年后 ...
陈政儒
core
Advancing conservation breeding programs for marine invertebrates
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source

