Results 61 to 70 of about 4,521 (107)

[Extracellular matrix materials and tissue regeneration and repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhao L, Xie H.
europepmc   +1 more source

可控硅单相并联逆变器在速调管高压电源上的应用

open access: yesGuangtongxin yanjiu, 1975
<正> 反射式速调管要求供给较高的电压和较大的电流。大功率分布作用腔式速调管则要求供给更高的电压和更大的电流。其腔体电压和收集极电压要求在2500伏以上,腔体电流和收集极电流总计将超过100毫安。现有的设备(如:WY—21通用速调管电源、WS—1等)均不能满足要求。为此,采用可控硅逆变器设计试制了较大容量的高压电源 ...
doaj  

[Development of a surface electromyography index system for orofacial muscles and validation of a discriminant model in unilateral molar occlusal interference]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Li W   +11 more
europepmc   +1 more source

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