Results 71 to 80 of about 3,584 (162)
Studies on the Redrying of Cocoons (4) : The Relative Humidlity in the Hasks of Cocoons and the Shrinkage of Pupas in the course of Drying [PDF]
, 1953 Article信州大学纎維学部研究報告 3: 98-102(1953)departmental bulletin ...
白井, 美明
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Gaoya dianqi, 2016 针对GIS设备SF6气体泄漏问题,文中将包扎法粗略估计与红外检漏法精确定位两种检测手段相结合,参照设备内部结构,根据现场实践经验,提出了一种利用故障树查明泄漏根源的分析方法。同时,制定出有针对性的预防措施,从设计制造工艺、安装工艺和日常维护等方面总结经验,加以改进,避免类似故障再次发生,具有一定的应用价值。
刘建月, 张志东, 李秀广
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A Fundamental Experiment on Detecting Deficiency of Concrete Structure with Infrared Thermography [PDF]
, 1992 The deficiency inside concrete stuctures which induces deterioration of concrete strutures is a serious problem all over the world. In many cases, the deficiencies are hidden inside the concrete structures, and it is inpossible to observe the ...
大田 哲男 +2 more
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Epidemiological characteristics of stroke incidence from 2017 to 2022 in Songjiang District, Shanghai [PDF]
ObjectiveTo investigate the prevalence of stroke in Songjiang District from 2017 to 2022, to analyze the epidemiological characteristics of stroke incidence, so as to provide a scientific basis for the formulation of stroke prevention and control ...
HE Jingyi +8 more
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Gaoya dianqi, 1976 为了防止内部流体泄漏和外部杂物混入的机构,统称为密封装置。用于固定部分的密封装置,称为固定密封(或称静密封)。用于运动部分的,称为动密封。 密封技术在高压断路器的制造中,占据着相当重要的位置。如果密封不良,就会造成断路器内部流体的泄漏,或者外部杂物的侵入。
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Gaoya dianqi, 2020 正在建设的淮南—南京—上海1 000 kV交流特高压输变电工程长江大跨越的跨江输电采用了气体绝缘输电线路（gas-insulated transmission line, GIL）,其GIL单个单元最大长度为18 m,外径达到900 mm,因此与一般的气体绝缘封闭开关设备（GIS）相比,GIL相对具有更大的发生内部绝缘气体泄漏的可能性。为了保证GIL运行时的绝缘强度并防止外界环境对于GIL内部的影响,以往要求小于等于0.5%/年的泄漏率已经不能满足,本工程将该要求提高到小于等于0.01%/年 ...
王昊晴 +6 more
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Information Disclosure and the Fair Acquisition Price of Start Ups [PDF]
, 2014 Kita, Masanobu
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Review of bypass systems for various power generation units [PDF]
Bypass systems are important auxiliary systems in different types of power generation units. This study assesses and reviews the fundamental principles, components, classifications, capacities, and functions of bypass systems.
Wen LI +3 more
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Dianci bileiqi, 2008 介绍了220kV金属氧化物避雷器（MOA）带电测试异常的处理情况,对异常MOA进行停电试验、解体检查发现,MOA的A相上节U1mA变化率为0.85%,0.75U1mA下的泄漏电流和绝缘电阻均符合《规程》的要求,没有故障;A相下节U1mA的变化率为22.4%,0.75U1mA下的泄漏电流为786μA,绝缘电阻值为0.411GΩ,存在故障。分析指出:测量阻性电流可及时准确发现MOA受潮情况;MOA在运行中要严格按照DL/T596—1996进行定期带电测试,以便及时发现缺陷;当MOA内部发生故障时 ...
苏文宇 +3 more
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Entry Strategy by Online in Professional Service Business: From a Viewpoint of Justice Theory [PDF]
, 2016 Kita, Masanobu
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