Results 21 to 30 of about 4,720 (147)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu +2 more
wiley +1 more source
Dianci bileiqi, 2015 在人工污秽实验室内对积污绝缘子在盐雾环境下的污秽闪络进行了模拟,得到三种类型绝缘子在不同盐密、不同盐雾盐度下的污闪电压及闪络电压梯度。试验结果表明:盐雾对绝缘子闪络电压的影响远大于盐密;结合海南实际污秽情况与海水电导率,在高盐密下,绝缘子闪络电压下降不超过20%,而在高盐度下,绝缘子的污秽闪络电压会下降40%以上;由此证明在沿海地区,仅用等值盐密、灰密为依据进行外绝缘配置会使外绝缘配置不足,存在事故隐患。
王昱晴 +7 more
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Coastal Upwelling off Eastern Fujian\|Guangdong Detectedby Remote Sensing [PDF]
, 2005 通过对卫星遥感数据和航次资料的分析,对粤东沿岸2000年7月份的上升流现象进行了综合分析。结果表明:观测期间,珠江冲淡水向东扩展的趋势很明显,与此同时,粤东沿岸(116°E)以东附近沿岸海域的水团具有低温、高盐的性质,显示了沿岸上升流的存在。通过对卫星遥感海表温度(SST)和风场的比较可知,上升流强度和风场的变化密切相关,海面风场平行岸分量的变化是夏季该上升流强度发生改变的重要原因。Based on satellite remote sensing data and the shipboard ...
吴日升, 庄伟, 王东晓, 胡建宇
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Research progress of enrichment characteristics of hazardous mineral matter in coal and their migration and transformation during thermal technology [PDF]
Low-carbon, zero-emission, and efficiency enhancement are the main themes of clean coal utilization today. The slagging and pollution caused by mineral matter in coal are key bottlenecks in clean coal technologies.
Bowen CHEN +8 more
core +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient and sustainable energy conversion technologies is crucial for addressing the global energy and environmental challenges. As a promising clean energy conversion strategy, the electrocatalytic methanol oxidation coupled with cathodic hydrogen production provides a pivotal path to solve the above problems.
Tao Chen +4 more
wiley +1 more source
Dianci bileiqi, 2018 为比较不同伞型、材质绝缘子相同环境下的自然积污特性及污耐压性能,在浙江嘉兴选取典型污源附近杆塔,对XP-70、LXY-70、FC70P、XWP2-70四种绝缘子进行同塔悬挂,经历2年自然积污后对盐密（ESDD）、灰密（NSDD）进行了测试分析,并以此为基础对不同绝缘子的污闪梯度进行了比较。分析结果表明,伞型对绝缘子积污盐密、灰密有显著影响,标准型绝缘子XP-70积污盐密、灰密约为双伞型XWP2-70相应值的2. 1、1. 5倍,钟罩型FC70P积污盐密、灰密约为标准型LXY-70相应值的1.
李特 +4 more
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Dianci bileiqi, 2022 电力系统中一般采用等值盐密和等值灰密来描述绝缘子表面的染污程度。其中，等值盐密和等值灰密分别表征了绝缘子表面单位面积可溶性污秽和不可溶污秽的量。运行部门一般利用滤纸过滤称重的方法测量绝缘子的等值灰密，但由于缺乏细致的测量规范，等值灰密测量值有一定分散性。为了研究灰密测量的影响因素，笔者从滤纸烘干温度、烘干时间、滤纸饱和重量及冷却时间4个方面出发，研究了上述因素对滤纸质量法中滤纸干燥程度的影响，在此基础上，给出了灰密的测量程序。试验结果表明，滤纸烘干温度为110℃,烘干时间15 min的 ...
燕宝峰 +6 more
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Progress in Mechanisms of Plant Resistance to Salt Stress [PDF]
, 2001 近年来植物抗盐机理的研究进展作了概述 ,阐明了植物对盐分的反应及盐分对植物的不同伤害 ,并从盐生植物的形态、生理和分子水平上综述了盐生植物的抗盐机理 ,最后对今后植物抗盐机理的研究可能存在的问题提出了自己的观点 【英文摘要】 The research of the mechanisms of salt resistance in plants in recent years is summarized.The responses to salinity and different harms in ...
张春光 +3 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang +8 more
wiley +1 more source
Gaoya dianqi, 2016 绝缘子污秽的可溶性成分的不同会导致绝缘子绝缘性能有较大差别,而等值盐密是表征绝缘子绝缘特性的主要指标,因此研究绝缘子污秽可溶性成分对等值盐密的影响有重要意义。文中以XP-70悬式绝缘子为研究对象,通过在自然环境下6个月的绝缘子污秽累积实验,采集获取了不同累积月份的污秽样本,并通过离子色谱仪（IC）和原子吸收光谱（AAS）分别获取了样品溶液中的阴阳离子质量分数,对阴阳离子的日均值进行了分析,并进一步研究了绝缘子污秽可溶性成分中的阴阳离子与等值盐密的相关性。结果显示,武汉地区绝缘子污秽中Ca2+和Na ...
陈孝明 +6 more
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