Results 41 to 50 of about 9,282 (191)
Rare Metals, EarlyView.ABSTRACT The development of high‐efficiency, stable, and scalable perovskite solar cells/perovskite solar modules (PSCs/PSMs) highly depends on the performance and cost‐effectiveness of functional layers such as electron transport layers (ETLs) and hole transport layers (HTLs).
Baochang Wang +11 more
wiley +1 more source
Dianci bileiqi, 2016 针对温度保险丝与ZnO压敏电阻在串联使用中的性能问题,通过对温度保险丝与ZnO压敏电阻热保护配合工作原理的理论分析,利用（8/20μs）雷电冲击平台及热稳定测试装置分别将温度保险丝以及温度保险丝与ZnO压敏电阻串联后进行实验,并将实验数据进行分析,得出温度保险丝与ZnO压敏电阻进行热保护配合时的冲击耐受能力大于温度保险丝单独使用时的情况,而器件整体的残压会相应的增加的结论;在热稳定试验中,不同型号的温度保险丝和ZnO压敏电阻进行热保护配合时,在固定电流的作用下 ...
李祥超 +4 more
doaj
激光冲击强化对NiTi形状记忆合金热力学性质及微结构的影响 [PDF]
, 2013 采用多物理场短瞬时同步测量的LSP实验平台,研究了LSP作用后Nri形状记忆合金的马氏体相变行为、表面硬度、LSP影响层深度以及微结构的变化。NiTi合金的马氏体相变行为通过差示扫描热分析仪DSC进行研究,结果发现Nri合金的相变温度没有发生明显的变化,表明LSP后NiTi合金能够保留其优异的形状记忆效应和超弹性性能。LSP后NiTi合金表面硬度则通过显微硬度计进行测量,结果发现LSP后表面硬度得到提高,且随着激光功率密度的增加,表面硬度提高的幅值增大 ...
吴先前 +4 more
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Rare Metals, EarlyView.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
Dianci bileiqi, 2013 试验研究了国内4种电除尘器绝缘子的瓷材料从常温至500℃高温的弯曲强度。结果表明,在500℃以下它们的弯曲强度没有明显变化。因而,采用瓷材料的常温强度来设计工作温度500℃以下的绝缘子是可以的,用常温强度试验代替绝缘子高温强度试验也是可行的。
王云鹏 +5 more
doaj
Gaoya dianqi, 2022 基于光辐射的测温技术一般工作在热辐射较强的红外波段，基于光反射的测温技术虽然可以工作在可见光波段，但目前使用条件只限于暗环境下正入射单波长的光源，而电力设备工作在日光下难以使用该技术。文中通过数字图像处理技术和机器学习方法，将热调制光反射技术扩展到不需要正入射和固定光源的情况，利用日光实现常温电力金具表面温升识别。在日光下利用3种手机拍照建立了110 kV输电线路一种金具不同日光环境(每个温度下日光照度有3种)的图像库4 500幅，3种不同金具（每个温度下日光照度一种）的图像库每种金具1 500幅 ...
杜文娇, 叶齐政, 袁哲, 李辰盟
doaj
Fast liquefaction of bamboo shoot/bamboo processing wastes by polyols with plasma-assisted technology [PDF]
, 2017 全球能源危机和环境问题使生物质的利用成为当今世界的研究热点。生物质液化是具有发展前景和工业化应用潜力的生物质转化技术之一，近年来发展迅速，然而简化液化反应条件以提高经济效益仍然是亟待提升和解决的关键问题。本文通过引入低温等离子体技术辅助生物质液化，在无外加热条件下，实现了笋壳和竹屑的常压快速液化，主要内容如下： 1.利用液相微等离子体技术在浓硫酸催化下对笋壳和竹屑进行多元醇（PEG400和EG混合液）液化研究。首先，通过单因素实验研究液化时间、催化剂用量、液固比、PEG/EG体积比等对液化的影响 ...
周儒森
core
Impact of rigid container material type and loading volume on the sterilization of thoracoscopic instruments [PDF]
ObjectiveTo explore the impacts of material type and loading volume of rigid containers on the hydrogen peroxide low temperature plasma sterilization of thoracoscopic instruments, to identify the best rigid containers and loading volume of thoracoscopic ...
CAI Yanni +9 more
core +1 more source
Rare Metals, EarlyView.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
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source