Results 41 to 50 of about 150,074 (98)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT NiCoCrAlYTa coatings are widely used as bond coats in thermal barrier coating (TBC) systems for gas turbines and aeroengines to provide oxidation resistance and support the formation of a protective thermally grown oxide (TGO). Herein, high‐current pulsed electron beam (HCPEB) modification was utilized to strengthen a NiCoCrAlYTa coating by ...
Xiangcheng Li +6 more
wiley +1 more source
, 2013 一种基于柔性支撑技术的电磁式微力试验机的检验方法，该方法用于检测所述电磁式微力试验机的准静态性能，该方法包括：对所述试验机位移灵敏度及其线性度、位移的量程、分辨力、噪声水平的检测；对所述试验机载荷灵敏度及其线性度、载荷的热稳定性、量程、分辨力、噪声水平；对所述试验机的磁缸的磁场非均匀性；对所述试验机的机架刚度和支撑弹簧垂直刚度及其线性度等性能的检测；确定各项性能检验顺序为：位移检验→载荷检验→支撑弹簧垂直刚度检验；考虑所述试验机的几个自身因素在检验过程中带来的影响，并通过合理手段排除影响 ...
郇勇, 彭光健, 张泰华
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Dianci bileiqi, 1974 在考虑高压,特别是超高压输变电的绝缘与运行中的基本因素配合时,内过电压已成为起主导作用的因素。作为保护设备的避雷器,除保护大气过电压外,还需考虑保护内部过电压,因而就需要对避雷器在内过电压作用下的性能有所了解。
抚顺电瓷厂高压试验室
doaj
Gaoya dianqi, 2022 故障电流试验是晶闸管换流阀运行型式试验中重要的试验项目之一，国内外对故障电流施加方式的研究已较为深入，但对电流过零后如何立即施加恢复电压的试验方案则研究较少。通过研究国内外故障电流试验回路的发展现状，文中提出了一种采用工频电压发生器施加恢复电压的试验回路，介绍了其施加预期恢复电压的试验方法，计算确定了试验回路设备的参数，最后通过仿真验证了单波次和多波次故障电流试验中恢复电压施加方案的可行性。文中的研究成果已成功应用于某公司自主建设的晶闸管换流阀故障电流试验系统，并开展了晶闸管换流阀组件的故障电流试验 ...
王杰峰, 任军辉, 张树楠, 曹洋
doaj
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Rationally selection of precursor additives during perovskite crystallization is essential for obtaining high‐quality films and achieving high‐performance perovskite solar cells (PSCs). However, the discovery and optimization of effective additives still rely heavily on time‐consuming and costly trial‐and‐error experiments.
Zhimin Feng +12 more
wiley +1 more source
Dianci bileiqi, 1977 在党中央和英明领袖华主席的领导下,我所坚持党的基本路线,以阶级斗争为纲狠抓反污防污工作,取得了一定成绩。在全所同志共同努力下,为监视和测量绝缘子表面泄漏电流,创制了污秽绝缘子泄漏电流测量指示器。现将其简单结线和测试示意图及用法和注意事项介绍如下,供参考。
天津电业局中心试验所
doaj
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Esophageal squamous cell carcinoma (ESCC) remains associated with frequent local recurrence and distant metastasis despite advances in radiochemotherapy and immunotherapy, highlighting the need for therapeutic strategies that improve both local tumor control and systemic antitumor immune responses.
Dongdong Wang +7 more
wiley +1 more source
, 2022 在高马赫数飞行条件下，斜爆轰发动机热力学循环效率高，燃烧室长度短，是近些年国内外研究热点。目前斜爆轰发动机试验研究使用的都是氢气或者乙烯燃料，还没有使用航空煤油的试验结果。为了研究RP3航空煤油应用于斜爆轰发动机的可行性，在JF–12激波风洞上开展了冷态RP3航空煤油斜爆轰发动机自由射流试验研究，JF–12激波风洞有效试验时间50 ms。针对航空煤油点火延迟时间长的难点，提出了鼓包强制起爆新技术。模拟的飞行马赫数为9，试验气流总温为3 800 K，全局当量比为0.9。试验中获得了稳定的斜爆轰波 ...
苑朝凯 +5 more
core +1 more source
, 1985 本文通过对LY12-CZ铝合金板材光滑试件和中心孔试件的常幅加载和变幅加载疲劳试验,对Miner累积损伤理论进行了试验验证,并对累积周比的分散性作了统计分析,发现累积周比的分散性服从Weibull分布 ...
伍义生
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The past few decades have witnessed multiple outbreaks of pandemics. Hygiene in public facilities is one of the key factors in maintaining public health security. Escalator belts, as frequently touched by passengers, become a potential medium for spreading pathogens.
Yang Xu +12 more
wiley +1 more source