Results 31 to 40 of about 1,309,292 (165)
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
Gaoya dianqi, 2023 全封闭组合电器设备作为一种当今现场广为使用的电气设备，常因导体接触不良等故障，导致其温度不断上升，从而引发事故发生。文中对GIS中盆式绝缘子导体热点分布情况进行分析，将荧光光纤温度传感器植入盆式绝缘子内部，直接测量导体温度。并对内置光纤传感系统的电场分布和加入光纤系统后的电场分布进行了分析并通过实验验证，明确使用光纤传感系统的安全性。并通过GIS温升试验对比光纤测温与内置热电偶测温，说明光纤测温的有效性。
马金财, 刘刚, 何龙, 赵洪波
doaj
Integrative Conservation, Volume 5, Issue 1, Page 86-103, March 2026.Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
wiley +1 more source
Gaoya dianqi, 2017 气体绝缘金属封闭开关（gas insulated switchgear,GIS）在电力系统中应用广泛,其内部触头过热会引发重大事故,因此研究其温度场分布特性具有重要意义。文中设计了252 kV GIS温升实验平台,通过实验获得了GIS母线导体、SF6气体和外壳部位的温度分布情况。针对上述实验平台建立了GIS三维物理模型和数学模型,基于有限元分析法对上述实验获得的GIS母线壳体温度场分布规律进行了仿真佐证。研究结果表明,在GIS壳体内部靠上区域,SF6气体温差较小,梯度不明显,而在GIS壳体内部下方区域 ...
金虎 +5 more
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Integrative Conservation, Volume 5, Issue 1, Page 74-85, March 2026.This study investigates distribution patterns of Galliforms in the Indian Himalayas, focusing on factors influencing their occurrence, regions of high diversity and endemism, and their overlap with protected areas. Our study highlights the need for assemblage‐level conservation strategies in high Himalaya which primarily relies on snow leopard‐focused ...
Manvi Sharma +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 more
wiley +1 more source
Gaoya dianqi, 2016 特高压直流电压测量装置测量精度与温度变化有较大的关系。要保证运行装置在温度范围内满足测量精度要求,开展装置内部温度分布研究是十分必要的。文中首先对装置进行了动态流场分析、建立了流场模型,通过分析模型计算得到不同环境温度下装置的内部温度分布,通过试验,直接测量装置额定电压运行时的内部温升,验证了模型的有效性。文中对研究方法给出了较为详细的阐述,通过研究装置的内部温度分布可知装置运行时的温度范围,在设计制造装置时可以更有针对性地选取适用的电阻器件,以满足装置测量精度的要求。
冯建华 +6 more
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Gaoya dianqi, 2021 分体自冷式变压器内部温度场的仿真分析多基于二维仿真,缺乏对油流流场影响的分析。文中建立110 kV水平分体式油浸自冷变压器的三维全尺寸模型,采用有限元分析方法仿真变压器内部温度场和流速场的分布,研究变压器本体与散热器间的水平布置距离对温度场和流速场的影响,分析变压器流场和温度场的耦合关系,并采用短路法温升试验验证仿真结果的准确性。结果表明,变压器内部热点出现在低压绕组B相两侧距绕组底部约0.68 H处,热点温度达369.7 K。随着变压器本体与散热器间的水平布置距离的增大 ...
蒋惠中 +5 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
wiley +1 more source