Results 21 to 30 of about 12,716 (121)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Ni3S2 has emerged as a promising catalyst for the electrochemical oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA), driven by its distinctive physicochemical properties. However, its practical catalytic efficiency is severely hindered by abundant electrochemically inactive surface sites and poor ...
Cheng‐Feng Yi +5 more
wiley +1 more source
Dianci bileiqi, 1988 在应用敲击法对高压电瓷动态弹性模量测试结果进行修正的基础上,探讨了高压电瓷动态弹性模量的分布。根据动态弹性模量服从复合型威布尔分布的特点提出一个由特定配方的动态弹性模量预测其强度的方法。在均值意义下,还给出了高压电瓷动态弹性模量和强度间的相关关系。应用这个相关关系,它们间的相互推断具有较高的精度。
马功勋
doaj
Zhejiang Daxue xuebao. Lixue ban, 2006 考虑可修的单元产品在出现故障时，由于种种原因，故障不能得到及时维修，形成了一段保障延误时间.于是这一更新过程为：正常工作（直到出现故障）-保障延误-故障维修-正常工作……. 假设工作时间、保障延误时间均服从指数分布，故障维修时间服从对数正态分布，用经典方法和广义p值方法给出了可用度的置信下限.
ZHANGGuo-fen(张帼奋) +1 more
doaj +1 more source
Underrepresentation of bats in Africa's protected areas
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Biodiversity is severely threatened globally, with habitat loss and other human pressures accelerating species extinctions. Protected areas (PAs) are a critical conservation tool; however, their effectiveness in safeguarding many taxa, such as bats, remains unclear.
Cecilia Montauban +9 more
wiley +1 more source
Genetic origins and climate‐induced erosion in economically important Asian walnuts
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little
Peng‐Zhen Fan +17 more
wiley +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Exploring heat tolerance and acclimation capacity can provide an effective approach to evaluating species’ sensitivity to extremely high temperatures due to climate warming. Despite some work on amphibian and reptile thermophysiological adaptation, related questions remain. We reviewed the literature to provide a synthesis of worldwide data on
Zijian Sun +8 more
wiley +1 more source
Gaoya dianqi, 2022 为实现变压器有载分接开关的故障诊断和状态评估，从分析有载分接开关动作时的振动信号出发，提出一种结合信息融合技术和模糊理论的故障诊断方法。根据有载分接开关的振动信号具有混沌特性，采用相空间重构方法将其映射到高维空间。然后根据相空间内相点分布的差异性，求取相点空间分布系数作为特征值。基于多传感器信息融合技术，结合相点空间分布系数，建立多通道下三维高斯型模糊集隶属函数，用以对现场测量的正常状态和3类常见故障的振动信号进行状态识别，得到较好的识别效果，可作为有载分接开关故障诊断的有力依据。
杨晓望 +7 more
doaj
Survival, rarity, and extinction in tropical stony corals
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Many reef‐building tropical corals are becoming rare. We considered the meaning of rarity in corals and highlighted taxa that have reached low abundances in the last few decades. The difficulties of quantifying rarity in the marine environment arise from the sheer scale and 3‐dimensional nature of the biome and the inherent challenges therein ...
Bryan Wilson, Peter J. Edmunds
wiley +1 more source
Gaoya dianqi, 2016 研究套管介质损耗及电容量增量测试值分布特性有利于从宏观上掌握运行高压套管绝缘健康水平。文中基于大量现场数据样本,综合采用直方图法和非参数检验法,获得了不同电压等级、不同环境温度、不同环境湿度、不同生产厂家、不同运行时间等多个维度下的运行高压套管tanδ值及电容量增量的正态分布曲线。结果表明:对早期工艺水平及运行时间越长的套管,其测试值正态分布曲线均值、标准偏差越大;不同环境湿度下运行高压套管tanδ及电容量增量的正态分布曲线差异与湿度范围有关,当环境湿度高于80%时差异性才较为明显 ...
熊俊
doaj
Integrative Conservation, Volume 4, Issue 4, Page 665-674, December 2025.Using a diagnostic mitochondrial marker gene, we document the presence of furry‐eared dwarf lemurs, a species known from Madagascar's eastern montane rainforests, in several forest fragments across the island's central highlands. These findings raise new questions about when this species colonized these sites, how they tolerate these changing and ...
Marina B. Blanco +27 more
wiley +1 more source