[Analysis and management of the influence of periapical lesion size on endodontic microsurgery]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHuang X, Zeng K, Yang R, Wei X.
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一种绝缘体上的硅基光栅耦合器，所述耦合器采用绝缘体上的硅材料，包括：一硅衬底；一限制层，该限制层制作在硅衬底上；一顶硅层，该顶硅层制作在限制层上，在该顶硅层的表面制作有光栅，在该顶硅层一侧靠近光栅处为锥形波导，该锥形波导大于80μm，与锥形波导连接处为亚微米波导；一光纤 ...
俞育德, 朱宇, 李智勇, 余金中
core
[Expert consensus on reconstruction treatment for irreparable posterosuperior massive rotator cuff tears]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiShoulder Joint Study Group Of The Fifth Committee Of The Chinese Society Of Sports Medicine Chinese Medical Association.
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[Analysis of associated factors for the ectopic eruption of adjacent first permanent molars after stainless steel crown restoration of second primary molars]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiDai W, Huang S, Zhang Z, Sun X, Zhang F.
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, 1996 本发明涉及一种架空电缆聚烯烃绝缘防护套的配方，以聚烯烃树脂为基料，在其中添加３－（３，５－二叔丁基－４－羟基苯基）丙酸十八酯、Ｎ，Ｎ′－二－β－萘基对苯二胺、三（１，２，３２，６，６－五甲基－４－哌啶基）亚磷酸酯、通用色素碳黑、三烯丙基异三聚氰酸酯；将上述物质按组份混合后再进行密炼、挤出、辐照即可制成绝缘电缆，该电缆具有很好的绝缘性、耐候性、耐热性、耐磨性和机械性能 ...
周才辉、滕人瑞、周知明、刘振灏、葛宝全、周振安、马思温
core
[Clinicopathological analysis of mesonephric-like adenocarcinoma in the corpusuteri: A report of 3 cases]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanWang X, Li L, Zhang W, Wang H.
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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
[Advances in application of tissue expansion technology in breast reconstruction]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiJiang Y, Tang Z, Xiao S.
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特高压GIS断路器用管型绝缘拉杆动态受力真型试验与材料压缩特性分析
Gaoya dianqi作为特高压GIS断路器中连接触头与操作机构的关键部件，绝缘拉杆在操作过程中需要承受外载荷作用。为掌握绝缘拉杆动态受力特性、材料力学性能，文中通过在特高压GIS断路器中布置力传感器测得其主绝缘拉杆操作过程中动态受力情况，根据测试结果进行了拉杆材料管型试样的压缩试验，并利用仿真分析了不同长径比拉杆的压缩屈曲特性。试验结果表明，操作过程中主绝缘拉杆受交变冲击载荷作用，操作机构对绝缘拉杆所施加压力峰值与拉力峰值相差不大，且二者均达到110 kN以上，绝缘拉杆材料的压缩特性应得到关注。压缩试验结果表明长度和内 ...
刘鹏 +6 more
doaj
[Expert Consensus on Shared Decision-making in the Diagnosis and Treatment of Ground-glass Opacity-featured Lung Adenocarcinoma]. [PDF]
Zhongguo Fei Ai Za ZhiZhao X +4 more
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