Results 61 to 70 of about 476 (100)

[Effect of different polymerization methods on shear bond strength between polymethyl methacrylate and silicone soft liner]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi, 2014
Zhang F, Shi L, Deng L, Zhang L, Zeng Y, Tu T.   +5 more
europepmc   +1 more source

基于分子动力学方法的复合绝缘子硅橡胶热老化机理研究

Dianci bileiqi
目前对复合绝缘子的热老化研究主要依赖试验方法进行，缺乏热老化过程中材料的微观动态变化认识。文章基于反应力场分子动力学方法，在微观原子层面对复合绝缘子的热解过程开展研究。研究发现，复合绝缘子热老化主要是硅橡胶材料发生Si-CH3、C-H、Si-O断裂，形成的产物主要包含了CH4、C2H4、H2和一些小分子硅氧烷。随着热解的持续，硅橡胶分子结构中新生成的Si-Si、Si-H键的数量不断上升，Si-Si键使得硅橡胶材料的交联度增加，Si-H键易水解形成OH。对老化后的硅橡胶进行介电常数计算发现 ...
刘海林, 赵洪峰, 翟国生, 张小军, 刘新刚   +4 more
doaj  

[Simultaneous determination of seven dimethylcyclosiloxanes in cosmetics of different formulation systems by gel permeation chromatography purification-gas chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2022
Xiao G, Yuan L, Luo C, Luo X, Huang Y.
europepmc   +1 more source

[Double-layer ceramic technique for restoring severely discolored nonvital maxillary anterior teeth: a case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen J, Yin L.
europepmc   +1 more source

[Digital aesthetic-driven flowable resin injection restoration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Li Y, Zou L, Chen H, Liu J, Zhang L, Zhang L, Xue J.   +6 more
europepmc   +1 more source

[Effect of disinfectant with benzethon chloramine and isopropanol as main active ingredients on the accuracy of dental impression]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2020
Xu D, Wei DH, Zhang YC, DI P, Lin Y.
europepmc   +1 more source

[Fitness of onlays fabricated with direct and indirect CAD/CAM technology <i>in vitro</i>]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Qian K, Liu Y.
europepmc   +1 more source

[Comparison of the accuracy of three methods for determining maxillomandibular horizontal relationship of the complete denture]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi, 2020
Yang LY, Liu GY, Zhao L, Gao X.
europepmc   +1 more source

A case of precise prosthesis under the direction of target restoration space analysis after multidisciplinary combination therapy. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi, 2022
Yang L, Qin H, Zhang J, Han X.
europepmc   +1 more source

[Design and research of a pneumatic soft intestine robot imitating the inchworm]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
He Y, Sun Z, Yuan J, Wei C, Han G, Chu X.   +5 more
europepmc   +1 more source