Results 1 to 10 of about 5,209 (115)
Gaoya dianqi, 2020 变电站设备箱体作为变电主设备重要的组成部分,其安全稳定运行对电网的可靠性至关重要。目前运行在南方地区高温、高湿、高盐腐气候环境中的变电站设备箱体时常会因为内部元器件二次元件老化、锈蚀等问题造成主设备出现故障。而引起二次元件老化、锈蚀等问题的主要原因是变电站设备箱体内部温度、湿度超标,突出表现为箱体内部出现凝露问题。凝露现象的产生主要是因为当相对湿度较高的气体遇到物体温度相对较低的表面时,高温气体降到露点温度后在低温物体表面出现的液化现象。文中基于能量、动量、连续性以及组分守恒定律 ...
王流火 +4 more
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Shuitu Baochi Xuebao, 2007 运用TDP液流计对湿地松树干液流密度进行长期连续测定，并用传感器同步记录环境因子的变化。湿地松边材面积与胸径之间的关系可以用二次函数很好地拟合。对湿地松生长旺季、非生长旺季以及全年液流观测结果与边材面积进行回归分析，日累计液流量与边材面积间均呈极显著的线性相关关系，所有方程的相关系数都在0．95以上。单位边材面积日累计液流量与冠层温度、冠层相对湿度、光合有效辐射均呈极显著的线性相关。建立了单位边材面积日累计液流量与冠层温度、冠层相对湿度、光合有效辐射的多元线性回归方程 ...
涂洁, 刘琪璟
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Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Flowers with deep corollas are frequently associated with nectar robbing, a behaviour that often reduces pollen transfer and seed production. Robbing scars, however, may further affect plant reproductive success through rainwater entry into corolla tubes.
Wu Sun +6 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Developing rapid, precise gas sensors for Listeria monocytogenes (LM) biomarker detection faces challenges due to suboptimal gas‐solid interactions. Herein, we report the rational synthesis of amino‐functionalized mesoporous SiO2 hollow nano‐doughnuts (MS‐2‐NH2‐2) via modification with (3‐aminopropyl) trimethoxysilane (AAPTMS), which enables ...
Xingyu Wang +7 more
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Shuitu Baochi Xuebao, 2002 近年来黄土高原地区的连续干旱气候对该地区的林木生长造成威胁,一些地方出现了树木干梢或成片林死亡的现象。以位于黄土高原典型半干旱丘陵区绥德县辛店沟的油松、侧柏、榆树和柠条人工林为研究对象,测定分析了0～9.9m深土层的土壤含水量,以探求不同树种在连续干旱条件下的存活能力。结果显示,油松存亡的临界土壤湿度在4.5%～5.2%之间,对应的临界相对湿度27.6%～31.9%;榆树存亡的临界土壤湿度在5.2%～5.8%之间,临界相对土壤湿度31.9%～35.6%;侧柏和柠条土壤湿度分别为4.3%和4.2 ...
王志强 刘宝元 等
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT To achieve high‐value utilization of spent catalysts, we recovered copper (Cu) from Cu‐bearing spent catalysts via acid‐base leaching to fabricate CuO and systematically studied how calcination temperature affects their microstructure and humidity‐sensing performance. Characterizations show that CuO‐500 (calcined at 500°C) has a large specific
Cong Liang +9 more
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World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Bengaluru, a primary metropolitan centre in India, is currently grappling with the dual crises of urban flooding and severe groundwater depletion. These challenges are driven by rapid urbanization, which has seen built‐up areas increase from 42% to 86% over two decades, resulting in a dramatic loss of vegetation and wetlands.
S. Biswas, S. V. B. Patel, B. Maheshwari
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT In this work, In2O3 and three rare earth (RE)‐doped In2O3 composites (Ho, Yb, and Sm‐doped) were prepared via the hydrothermal method. Compared with In2O3 sensors, those fabricated from the three composite materials (RE–In2O3) exhibit varying degrees of enhanced response toward ethylene glycol (EG) gas. At 35% relative humidity (RH) and 250°C,
Chang Liu +9 more
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Gaoya dianqi, 2006 分析了SF6高压电器中湿度对产品性能的影响;对现在执行的湿度限值标准及湿度监测方法提出了质疑,并提出了简单适用的按相对湿度来监控SF6湿度的方法及其相应的湿度限值新标准。
黎斌
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT VO2 is a promising thermochromic material, but it is still limited by low transparency, weak solar modulation, and poor stability. Here, we develop a coordination‐compound‐derived strategy to construct a hierarchical BiVO4/VO2@BiVO4 film with a core–shell@nanosheet structure.
Huiyan Xu +11 more
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