Results 11 to 20 of about 430,645 (159)
Dianci bileiqi, 2023 为提高对金属氧化物避雷器(MOA)运行状态的准确把控能力，提出了基于多源信息融合的MOA运行状态评价方法。该方法通过评估运行巡视、带电测试与停电试验等数据对MOA运行状态的影响，建立了多源信息评价标准；应用长短期记忆循环神经网络(LSTM-RNN)、CART决策树与D-S证据理论构建了MOA运行状态评价模型；最后运用该模型对不同变电站的3个间隔9支MOA进行跟踪测试。结果显示，该模型的评价结果与停电试验结果相一致，证明了该模型对MOA运行状态评价的有效性 ...
朱育钊, 方文田, 方逸越, 李涛
doaj
Wildlife Letters, EarlyView.Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller +5 more
wiley +1 more source
Assessing and strengthening community‐based coastal governance
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract Community‐based coastal governance is essential for biodiversity conservation and sustainable livelihoods, yet many communities continue to face significant challenges in establishing and sustaining effective governance systems. We sought to improve understanding of the current status of community‐based coastal governance across five countries
Mark Andrachuk +21 more
wiley +1 more source
Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean
Conservation Biology, Volume 40, Issue 5, October 2026.Workflow to assess the availability and quality of germination data and assign species' thermal risk in the Mediterranean. (a) Assessment of data availability, including the phylogenetic distribution of the number of records (i.e. available germination data); (b) data quality assessment; and (c) assignment of climate risk categories for species that ...
Diana María Cruz‐Tejada +2 more
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Ecological security assessment of Qiandao Lake based on catastrophe theory(基于突变级数法的千岛湖流域生态安全评价)
Zhejiang Daxue xuebao. Lixue ban, 2014 针对千岛湖流域生态系统退化、生态安全受到威胁的现状，对千岛湖流域生态安全进行了综合评价，以识别影响流域生态安全的主要因素.研究引入了基于突变理论的多准则评价方法——突变级数法，基于压力-状态-响应(PSR)模型构建了由15个相关指标组成的评价指标体系，对千岛湖流域2008~2011年间的生态安全进行了全面评估.评估结果表明，2008~2011年间，千岛湖流域生态安全2010年达到较安全级别，其他年份均处于基本安全的级别.相对而言，压力系统的安全度最低，状态系统安全度最佳.研究结果表明 ...
LIYanan(李亚男) +3 more
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Functional Ecology, Volume 40, Issue 7, Page 2332-2344, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) serve as important indicators for assessing nutrient balance in forest ecosystems, but their relationships with photosynthetic dynamics require deeper characterization.
Minghao Chen +9 more
wiley +1 more source
Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
Gaoya dianqi, 2013 笔者对配电网开关柜状态检测与状态评价的实施方式进行了初步探讨,建议对配网开关柜的状态检测分为抽样检测和状态监测两种方式。根据现有的状态检测手段,建议将状态评价分为整体性评价和个体性评价。整体性评价以抽样检测的结果为主要依据,而个体性评价的结果主要以状态监测的结果为主要参考。个体性评价的状态量主要包括基础资料、运行巡视、气体压力、红外测试及局部放电测试。广州地区的实施结果表明该评价方法具有较好的可操作性和可信性。
李刚, 朱革兰
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Engineering Geometric Active Sites in Cobalt Spinel Oxides for Energy and Environmental Catalysis
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Cobalt‐based spinel oxides (Co3O4 and derivatives) are among the most promising transition metal oxides for electrochemical energy conversion and environmental catalysis due to their abundant active sites, structural tunability, and robust redox flexibility.
Shenning Liu +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 采用GIS技术与层次分析法相结合,对湖南省生态环境质量状况进行了综合评价。通过建立综合评价的指标体系和基本评价单元,应用层次分析法确定各评价指标的权重,再运用GIS技术,计算评价单元的质量指数和分指数,自动生成湖南省生态环境综合评价等级图,并从自然环境、灾害状况、环境污染和社会经济状况方面进行了空间分界规律分析。结果表明,社会经济与自然环境状况的空间格局大体吻合,湖南省生态环境质量基本上由东向西逐渐降低,但局部地区有差异。说明自然条件对湖南省生态环境质量的空间分异起主要作用,但灾害状况 ...
熊鹰 王克林 黄道友
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