Results 101 to 110 of about 88,215 (141)

GIS/GIL绝缘件潜隐性缺陷形成机理与无损检测技术研究进展

open access: yesGaoya dianqi
气体绝缘组合电器(GIS)与气体绝缘金属封闭输电线路(GIL)中的环氧树脂绝缘件(盆式绝缘子、支柱绝缘子等)是设备的核心部件,其长期运行可靠性面临严峻挑战。生产阶段形成的潜隐性缺陷(浅表性缺陷、界面缺陷及残余应力缺陷)是导致绝缘件开裂、击穿甚至炸裂故障的主要原因,而传统出厂试验(耐压局放、X射线、水压试验)对此类缺陷的检测能力严重不足。文中系统综述了上述3类潜隐性缺陷的形成机理,分析了气泡成核、填料沉降及界面应力失配等关键诱因;评述了太赫兹时域光谱、激光超声及声弹效应等新型无损检测技术的原理 ...
贺春   +9 more
doaj  

[Expert consensus on clinical randomized controlled trial design and evaluation methods for bone grafting or substitute materials in alveolar bone defects]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Liao X   +19 more
europepmc   +1 more source

[Research progress of tibial tunnel positioning techniques in posterior cruciate ligament reconstruction]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li R, Liao Y, Guo F, Chen Q, Li S, He C.
europepmc   +1 more source

[Clinical and genetic characteristics and follow-up of 12 children with hypophosphatasia]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Wu S   +8 more
europepmc   +1 more source

[The guideline for the diagnosis and treatment of marginal zone lymphoma in China (2025)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Hematological Oncology Committee of China Anti-Cancer Association   +5 more
europepmc   +1 more source

[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Kang R, Yuan W, Zhu Y.
europepmc   +1 more source

[The causes of death in elderly patients undergoing haploidentical stem cell transplantation]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Zhao W   +10 more
europepmc   +1 more source

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