Results 71 to 80 of about 627 (122)

[Finite element modeling and simulation study of solid-liquid biphase fiber-reinforced lumbar intervertebral disc]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Gao Y, Fu Y, Cui Q, Chen S, Liu P, Liu X.   +5 more
europepmc   +1 more source

Damage evolution behavior and fracture mechanism of nanostructured and conventional ceramic coating systems

, 2016
陶瓷涂层由于具有良好的隔热性能被广泛应用在发动机的叶片、近空间飞行器的表面上，保护金属基底以防基底在高温下失效。陶瓷涂层服役环境中经常有热震现象发生，导致涂层受到拉应力作用，涂层内部和界面将会开裂。一旦涂层剥落，基底将会暴露在高温工作环境中。因此研究陶瓷涂层/合金基底体系（以下简称陶瓷涂层体系）的损伤演化规律和失效机制非常重要。以往的研究表明涂层厚度和微结构对陶瓷涂层体系抗热震性能有很大的影响。本文通过设计相关实验，应用热力等效原理，用机械载荷作用下的弹性失配来模拟热载荷作用下的热失配 ...
刘海燕
core  

绝缘子电气机械特性的数理统计研究 附视频

Dianci bileiqi, 1976
本文简述了高压线路盘形悬式绝缘子串和电站支柱绝缘子闪络特性(与闪络距离的关系)回归方程,圆柱形支柱绝缘子和纯瓷穿墙套管弯曲破坏应力特性(与危险断面截面积以及胶装比的关系)回归方程,瓷绝缘子工频击穿电压(与击穿距离的关系)回归方程,盘形悬式瓷绝缘子机电破坏负荷特性(与瓷件头部内孔承力面面积的关系)回归方程。介绍了回归方程与实测结果以及国外公式的比较,各种特性的标准偏差回归方程计算结果。附录简述了回归方程计算万法。
doaj  

[Effect of porous surface structure on fatigue strength of 3D printed zirconia]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zhao J, Ding Q, Li W, Ma Q, Lan Y, Zhang L, Han J.   +6 more
europepmc   +1 more source

[Effectiveness of arthroscopic treatment for femoroacetabular impingement syndrome combined with ligamentum teres injury]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Han S, Li S, Jia D, Li Y, Cai G.
europepmc   +1 more source

[Advances in intra-abdominal vascularized lymph node transfer for treatment of limb lymphedema]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Chen Y, Deng C.
europepmc   +1 more source

[Fabrication of high-degradation-efficiency molecularly imprinted photocatalysts and its selective degradation performance]. [PDF]

Se Pu
Zhang JJ, Song YF, Liu Y, Tian XM, Gao RX.   +4 more
europepmc   +1 more source

经蝶窦行鞍区肿瘤手术入路探讨

Zhongshan Daxue xuebao. Yixue kexue ban, 1993
报告84例经鼻中隔,蝶窦入路摘除蝶鞍区肿瘤手术方法及效果。术前检查有单纯性鼻炎2例,过敏性鼻炎2例;鼻中隔C型弯曲或嵴突32例;全鞍型蝶窦79例,甲介型5例;蝶鞍正常53例,扩大者31例,其中鞍底有破坏的占12例。鞍内肿瘤病理诊断,垂体腺瘤81例,垂体囊肿1例,颅咽管瘤2例。经鼻小柱-鼻中隔-蝶窦行鞍内肿瘤手术,暴露病灶清楚、准确,并发症少,效果良好,无1例死亡。作者认为鼻中隔软骨保留,筛骨垂直板及犁骨仅部分去除,可以减少并发症。术后随访2个月～5年,合并症仅鼻中隔穿孔1例,鼻中隔血肿1例,鼻腔粘连2例,
doaj  

[High-Throughput Detection of Multiple Classes of Antibiotics in Source Water Using a Functionalized Polyacrylonitrile Nanofiber Membrane]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wang K, Nian Q, Wang C, Zhang Q, Xu Q.
europepmc   +1 more source

[Effect of slurry proportion on the microstructure and properties of dental lithium disilicate ceramics manufactured through 3D printing]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Lin B, Chen X, Li R, Wan Q, Pei X.
europepmc   +1 more source