Results 71 to 80 of about 3,348 (119)

[A multi-view stereo vision methodology for digital soft-tissue impressions in fixed implant rehabilitation of edentulous patients]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Yang Y   +10 more
europepmc   +1 more source

[Impact of ultrasonic scaling on abutment screw torque in implant restorations]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Tang Y, Zhao X, Yang X, Jia H, Liu Y.
europepmc   +1 more source

埋地配电系统采用氧化锌避雷器防雷保护的简化方法

open access: yesDianci bileiqi, 1989
大部分电业部门都承认,单用柱上式避雷器对于25~34.5kV/14.4~19.9kV等级的配电系统不能保证足够的保护裕度(20%).尚需另增避雷器保护.本文提出现代埋地式配电系统使用避雷器保护的技术评估简化方法,此方法可用于计算安装在不同位置的设备的保护水平及保护裕度.以加拿大安太略水电公司一条27.6/16kV埋地电缆配电系统为例进行计算 ...
doaj  

[The value of the nutritional assessment index or score in prognostic evaluation for patients with liver cancer]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Shen JC   +5 more
europepmc   +1 more source

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