Results 1 to 10 of about 2,031 (59)
Use of carrion fly iDNA metabarcoding to monitor invasive and native mammals
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Severely fragmented habitats increase the risk of extirpation of native mammal populations through isolation, increased edge effects, and predation. Therefore, monitoring the movement of mammal populations through anthropogenically altered landscapes can inform conservation. We used metabarcoding of invertebrate‐derived DNA (iDNA) from carrion
Kristen Fernandes +5 more
wiley +1 more source
Dianci bileiqi, 2022 随着动车组服役年限的增加，其车顶绝缘子的绝缘性能会发生衰退。为研究不同服役年限下高压隔离开关用绝缘子性能衰退特性，本研究以动车组车顶复合支柱绝缘子为研究对象，对其进行了憎水性、绝缘电阻测试和雷电冲击试验。基于绝缘子憎水性测试，研究表明，服役年限为3年的绝缘子憎水性最好，为HC3级。与服役年限为3年的绝缘子相比，服役年限为4年、5年、6年和10年的绝缘子憎水性普遍下降，均为HC4-HC5左右；基于绝缘子绝缘电阻测试，研究表明，不同服役年限下绝缘子泄漏电流变化不大，均维持在30.6μA～42.0μA ...
于治国 +5 more
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Li–O2 batteries garner widespread attention owing to their remarkable theoretical specific capacity. Nevertheless, the feasible implementation of the system is hindered by sluggish cathode reaction kinetics and poor anode stability. Herein, the carbon dots (CDs) with ‐OH, ‐NH2, and ‐COOH groups are synthesized and employed as electrolyte ...
Ying Li +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Silicon–carbon composite anodes offer exceptionally high energy density, but their practical application is severely constrained by the structural instability and continuous evolution of the solid electrolyte interphase (SEI). In this work, moving beyond conventional LiF‐enrichment strategies, we propose a directional regulation approach based
Yao Liang +11 more
wiley +1 more source
6.3～40.5 kV干燥空气开关柜绝缘件阻燃性的实验分析与研究
Gaoya dianqi, 2020 绝缘件是6.3～40.5 kV空气绝缘开关柜设备中的薄弱环节,其中环氧树脂绝缘件在设备中应用较多,其性能直接决定开关设备的绝缘性能及运行可靠性。环氧绝缘件一般采用双酚A环氧树脂和固化剂经过复杂的化学反应制成,不同制备条件、工艺等对绝缘件的使用性能有很大影响。文中通过不同配比的环氧树脂样品的实验分析和研究,得出了玻璃化转变温度、填料、耐电痕性能等对绝缘件阻燃性的影响,对绝缘件的加工和制造有一定的指导意义。
袁培 +5 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Skin‐like wearable electronics have emerged as a transformative technology for next‐generation human–computer interaction, offering unprecedented compatibility with the body's soft, curvilinear surfaces, and dynamic movements. However, the scarcity of intrinsically stretchable material components and the limited coverage of reported sensors ...
Mingxin Zhang +6 more
wiley +1 more source
Elephant barrier behaviors in response to conflict mitigation fences
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Human–wildlife conflict is a major conservation issue, particularly in lower income countries, where it affects marginalized people and leads to the extirpation of threatened species. Managers increasingly use fences to reduce this conflict but lack evidence on the effectiveness of these barriers, especially on whether this reduces the number ...
Dominique Gonçalves +2 more
wiley +1 more source
Dianci bileiqi, 2022 圆柱头和圆锥头盘形悬式瓷绝缘子的内、外绝缘性能在理论上无本质差别。相比圆锥头瓷绝缘子，圆柱头瓷绝缘子重量明显减轻，可有效降低杆塔导线的机械载荷；并且对于材料性能经时变化有较好的分散和调整能力，使得产品不受过大应力及不均匀应力的长时作用，具有较高的可靠性。为进一步提升圆柱头绝缘子产品的机械性能，笔者在不改变绝缘子铁帽及瓷件结构的前提下，建立了钢脚参数化的精细仿真模型，通过有限元法计算分析钢脚几何参数对圆柱头瓷绝缘子机械性能的影响，为产品优化提供设计参考。
周学明 +6 more
doaj
Integrative Conservation, Volume 5, Issue 1, Page 125-136, March 2026.We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
Dianci bileiqi, 2015 复合绝缘子是绝缘材料在电力系统外绝缘应用之一,其绝缘老化性能与表面憎水性有密切关系,因此需要对其绝缘老化判断方法进行研究。本文提出了一种基于支持向量量机（SVM）的复合绝缘子硅橡胶材料绝缘老化性能的判断方法。支持向量机以结构风险最小化为原则,统计学习训练为基础,具有较强的泛化能力。该文以最大水珠形状因子、面积比等特征参数为输入,硅橡胶材料的绝缘老化性能为输出,建立特征参数与绝缘老化性能间的关系。实验结果表明:该方法能判断出复合绝缘子硅橡胶材料绝缘性能良好、正常、差3种状态,尤其以最大水珠面积比为输入时 ...
何贵, 廖平军
doaj