Results 21 to 30 of about 12,610 (131)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Photodetectors, based on GaAs nanowires (NWs), hold significant promise in the fields of high integration micro‐ and nano‐optoelectronics applications because of their outstanding electronic and optical properties. To date, significant efforts have been directed toward enhancing the performance of photodetectors, aiming for high detectivity ...
Yu Hao +11 more
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Gaoya dianqi, 2008 阐述了电容分压器的电路原理,根据同轴型电容分压器的容值计算公式计算了电容分压器的理论分压比,研制了一种用于测量上升沿小于10 ns脉冲高压的同轴型电容分压器,并利用方波源和电阻分压器对其进行了标定。实验测试表明,该电容分压器满足测量要求,能很好地测量快前沿的陡脉冲电压信号。
刘轩东 +3 more
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Gaoya dianqi, 2020 作为特高压交流变电站内的主要噪声源之一,运行中的特高压变压器的本体噪声、冷却装置噪声及环境噪声等相互混叠,给准确分析特高压变压器的噪声特性带来不利影响。文中依据某1 000 kV交流变电站特高压变压器的噪声测试结果,通过设计阻带滤波器和合理选取稀疏自动编码器的关键参数如隐层节点数、稀疏参数等,提出了一种综合阻带滤波器和稀疏自动编码器的特高压变压器本体噪声提取方法,对比分析了特高压变压器噪声信号分离前后的频谱瀑布图。结果表明:特高压变压器的本体噪声主要集中在100、200、300 Hz分量 ...
田昊洋 +5 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo +6 more
wiley +1 more source
Gaoya dianqi, 2017 为了提高特高压电容式电压互感器的瞬态性能,分析其在较宽频域内的分压特性,以某公司生产的1 000 kV特高压电容分压器为实验对象,进行了特高压电容分压器阻抗的测量,建立了特高压电容分压器的宽频等效电路模型。首先,测量特高压电容分压器的阻抗;其次,基于测量得到的数据结合矢量匹配法和电路综合理论,建立了特高压电容分压器的宽频等效电路模型,并利用模式搜索算法对等效电路进行无源修正;最后,利用所建立的模型,分析特高压电容分压器在不同频率下的分压特性,为合理设置均压装置以及改善特高压的制造工艺提供理论依据。
王平, 张广勇, 李慧奇, 李璿
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang +8 more
wiley +1 more source
Gaoya dianqi, 2018 高压断路器（配液压操动机构）应具有防止液压机构失压后断路器慢分的功能。断路器防慢分措施有两个方面:一方面是液压机构中液压系统的液压防慢分;另一方面是针对断路器的机械防慢分。文中介绍后者。文中介绍了高压断路器机械防慢分装置的设计及试制。对断路器的传动系统进行了分析,论述了断路器机械防慢分装置的结构和动作原理、输出力值及应力和变形量计算,按此方法设计的机械防慢分装置随断路器进行了操作试验验证,确保了断路器没有出现慢分现象。
张全民, 赵玉柱, 张朝辉
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Early detection of thermal runaway (TR) is essential for lithium‐ion battery (LIB) safety, as unchecked TR risks catastrophic failures in energy storage systems. Gas‐based sensing offers a faster and more direct approach by detecting decomposition products at the molecular level.
Tianshui Liang +9 more
wiley +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
Gaoya dianqi, 2017 电子式电阻型电压互感器的电场分布受大地及周围带电体或接地物体的影响较大,电阻分压器的高压引线及高压端对地存在分布电容,这些因素均会影响分压器的技术性能。因此,电阻型电压互感器的电场屏蔽显得非常重要。文中从等效电路的角度分析了电阻特性和分布电容对互感器性能的影响,并利用Ansys软件从场的角度分析了电阻分压器的电场分布。最终设计的10 kV电压互感器屏蔽罩和分压器产品通过了相关测试并满足相关标准的要求。文中对电子式互感器设计人员有指导和参考作用,具有一定的实际应用价值。
魏明, 秦猛
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