Results 61 to 70 of about 637 (109)
Gaoya dianqi, 2007 银镀层因有较好的导电性和导热性,在高压电器产品的接触表面得到了广泛的应用。笔者分析了在光照情况下银镀层表面易与外界腐蚀性介质产生反应、引起腐蚀变色的原因;总结了腐蚀变色评价标准、试验结果,提出防腐变色的防护措施。
梁明生, 吕荣义
doaj
[Corrosion resistant properties of different anodized microtopographies on titanium surfaces]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2015 Fangjun H +5 more
europepmc +1 more source
[Research status and development of biodegradable zinc alloy as orthopedics implant]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Zhang T, Liu Y, Wang W, Zhao D.
europepmc +1 more source
Shiyou jixie, 2014 针对原油管式加热炉对流室炉管的腐蚀程度难以检测和评估的问题，采用声发射方法测试对流室炉管。应用灰色关联分析(GRA)原理，确定了能够有效反映炉管腐蚀状态的声发射表征因素，应用极限向量机(ELM)网络，建立基于声发射因素的对流室炉管腐蚀状态智能评价模型，并以1台正在大修的原油管式加热炉的对流室炉管为研究对象，进行腐蚀状态检测评估，评估结果表明该方法能够有效地对对流室炉管的腐蚀程度进行智能评价。
裴峻峰 +5 more
doaj
Gaoya dianqi, 2015 为了研究地网中腐蚀支路对断裂导体诊断结果的影响程度,笔者基于二进制遗传算法编制了MATLAB地网导体断裂诊断程序。以重庆110 k V上桥变电站实际地网为例进行了8组仿真实验,对比分析了各组实验中不同腐蚀情况下的诊断结果和各节点电位的变化,计算了不同导体断裂情况下适应度函数fitness值。利用支路灵敏度法分析了腐蚀支路存在对诊断结果的影响。结果表明:当地网未发生腐蚀或者发生轻微腐蚀时,诊断结果能准确找出断裂导体支路;当地网发生轻度、中度乃至严重腐蚀时,诊断结果中无漏诊、但会出现误诊的断裂导体支路 ...
刘渝根 +4 more
doaj
Dianci bileiqi, 2017 接地网为隐蔽性设施,用参数识别的电测法对其进行腐蚀故障诊断只能通过对接地引线的测试进行,而根据相关标准,接地装置中与接地网连接的接地引线需定期进行电气完整性测试,以检查其是否与接地网可靠电气连接。为避免接地装置腐蚀诊断带来额外工作量的问题,基于生产中所获取的接地引线电气完整性测试数据信息,提出用其进行接地网支路和接地引线支路腐蚀诊断的方法,从而使得接地网支路导体的电测法腐蚀诊断无需进行专门测试,就可达到对接地装置网络导体的腐蚀诊断。通过仿真分析指出,随着接地导体埋地时间的增加 ...
刘熙 +6 more
doaj
[Effect of fluoride concentration on the corrosion behavior of cobalt-chromium alloy fabricated by two different technology processes]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2016 Qiuxia Y, Ying Y, Han X, Di W, Ke G.
europepmc +1 more source
[Applications and prospects of biodegradable rare earth magnesium alloys as bone implant materials]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiYue H, Zhu X, Gao Z, Sun Z.
europepmc +1 more source
[Application and research progress of three-dimentional printed porous titanium alloy after tumor resection]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022 Liu P, Gao Q, Lü L, Zhang W, Fan B.
europepmc +1 more source
[Application and challenges of tissue engineered scaffolds in treatment of long-segment laryngotracheal stenosis]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYu Q +7 more
europepmc +1 more source