Results 101 to 110 of about 2,869 (155)

涂层添加物对光纤疲劳和老化的改进

Guangtongxin yanjiu, 1996
阐述了通过把纳米级的二氧化硅微粒掺入光纤的聚合物涂层内能改进光纤长期机械特性。实验分析表明涂层添加物能显著降低光纤表面粗糙度的变化速率,其作用是抑制表面溶解过程。用这种方法可以延迟光纤疲劳转折的发生,并使零应力老化下的强度衰退降到最低限度。
竺逸年
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XPLE-SIR界面粗糙度对界面放电光的影响

Gaoya dianqi, 2011
XPLE电力电缆因其优异的机械性能和电绝缘性能得到广泛的使用,在交联电缆接头安装过程中,对交联聚乙烯主绝缘表面进行打磨会使接头交联聚乙烯—硅橡胶界面产生不同的粗糙程度,但是对存在于两个有机绝缘之间的接触面的电绝缘强度的研究很少,笔者针对交联聚乙烯电力电缆接头的交联聚乙烯和硅橡胶两绝缘界面经常出现放电光的现象,建立了电痕破坏实验平台,用不同型号的砂纸对XPLE片横向和纵向打磨制备实验样品,采用高速相机对发生在交联聚乙烯和透明硅橡胶界面上的放电光进行记录。结果表明:界面粗糙度越大 ...
陈新岗, 张超峰, 古亮, 赵阳阳, 王长运   +4 more
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Effect of laser process parameters on the pores, surface roughness, and hardness of laser selective melting of dental cobalt-chrome alloys. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sang L, Yan J, Li N, Xin C, Wang Q, Liu C.   +5 more
europepmc   +1 more source

[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

数字地形分析在滑坡研究中的应用综述 [PDF]

, 2015
宫清华, 张冬良, 熊海仙, 袁少雄, 陈波, 黄光庆   +5 more
core  

[Long-term prognosis and influencing factors of anterior composite resin restoration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen W, Wu F, Wei X.
europepmc   +1 more source

[Diagnosis and treatment of vocal cord leukoplakia]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wu H.
europepmc   +1 more source

[Influence of surface roughness on oral streptococcal adhesion forces to dental filling materials]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi, 2016
Sainan Z, Li J, Lei Z, Liying H, Lu Y, Wei L.   +5 more
europepmc   +1 more source

局部电场畸变对SF₆/N₂和SF₆/CO₂混合气体耐电强度的影响

Gaoya dianqi, 1988
本文用半椭球凸出物模型计算了在SF6/N2和SF6/CO2中电极表面粗糙度对耐电强度的影响。计算表明:在电场畸变严重时,两种混合气体的击穿强度均高于纯SF6,且SF6/CO2优于SF6/N2。这一结论并为实验结果所证实。
doaj  

[Research progress on enhancing osseointegration properties of polyetheretherketone implants through various modification methods]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu S, Feng X, Chen C.
europepmc   +1 more source