Results 61 to 70 of about 186 (101)

[The application of surgical robots in head and neck tumors]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Huang X, He Q, Wang D, Yan J, Wang Y, Liu X, Zheng C, Xu Y, Bai Y, Li C, Sun R, Wang X, Xiang M, Wang Y, Lu X, Tao L, Song M, Liang Q, Zhang X, Hu Y, Chen R, Liu Z, Liang F, Han P.   +23 more
europepmc   +1 more source

劣化支柱瓷绝缘子电瓷性能及断裂原因分析

Dianci bileiqi
在机械、热、电和环境等多种因素的长期作用下，支柱瓷绝缘子的电瓷性能发生显著劣化，同时在表面以及内部容易产生微裂纹，最终导致支柱瓷绝缘子发生断裂，影响变电站的安全运行。本文研究两支运行年限超15年劣化断裂的硅质和铝质支柱瓷绝缘子，通过机械性能、化学成分、晶相、显微结构分析了两种劣化支柱瓷绝缘子的瓷件理化特性和微观形貌，并对未涂覆沥青缓冲层的支柱瓷绝缘子承受应力情况开展了热应力仿真模拟。断裂硅质瓷支柱绝缘子的微观结构呈现疏松多孔特征，大量石英颗粒与基体形成环状微裂纹 ...
徐碧川, 刘方吉, 马笛琴, 晏年平, 胡睿智, 陈田   +5 more
doaj  

[Effect of trapezoidal and modified triangular flaps on mucosal blood supply and osteogenesis after guided bone regeneration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen S, Zhang X, Jia X, Xia R, Jiang F.
europepmc   +1 more source

[Application of multi-scale spatiotemporal networks in physiological signal and facial action unit measurement]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu S, Zhang S.
europepmc   +1 more source

[Diagnostic Study of Multi-spectral Intelligent Analyzer in Diagnosis of 
the Infiltration Degree of Lung Adenocarcinoma].

Zhongguo Fei Ai Za Zhi, 2023
Yang X, Wang P, Qin Q, Guo K, Cui Y, Luo Y.   +5 more
europepmc   +1 more source

[Expert consensus on the diagnosis and differential diagnosis of indolent B-cell lymphomas in China (2025)]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Hematological Oncology Committee of China Anti-Cancer Association, Lymphoid Disease Group, Chinese Society of Hematology, Chinese Medical Association, Chinese Working Group for indolent lymphoma.   +4 more
europepmc   +1 more source

[Preoperative Pulmonary Nodule Localization Methods:A Comparison of Microcoil and Sclerosing Agent]. [PDF]

Zhongguo Fei Ai Za Zhi, 2020
Wu G, Wu X, Xu M.
europepmc   +1 more source

[Analysis of risk factors for early failure of simple taper retentive implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang X, Wan Z, Wei S, Yu F, Cao N, Cao L, Wu H, Guo S, Wei H.   +8 more
europepmc   +1 more source

GIS盆式绝缘子热解反应机理函数的通用表征模型与求解方法

Gaoya dianqi
反应机理函数可有效表征GIS盆式绝缘子的绝缘老化与劣化过程，有助于揭示盆式绝缘子的失效机理，为评估绝缘子的绝缘性能提供了新途径。通过对反应机制的微分方程的解析，建立了4个基本参量的反应机理函数的积分表达式，它能对不同的反应阶段或路径进行修正，适用范围更广。在此基础上，根据非等温动力学方程，推导出了该试验函数的结构形式，并推导了该模型的计算公式。利用该方法还可同时计算指前因子。进一步具体解析了盆式绝缘子和交联聚乙烯的反应机理函数，并基于Coast-Redfern法和改进Flynn-Wall ...
辛晓虎, 何金, 满玉岩, 公衍峰, 李占军   +4 more
doaj  

[Application of functional perforator flap transplantation with chimeric iliac bone flap in reconstruction of composite tissue defects of hand or foot]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li J, Guo H, Luo B, Yan H, Ma M, Li T, Ning T, Jiao W.   +7 more
europepmc   +1 more source