Results 71 to 80 of about 356,680 (117)

带有颗粒的圆射流冲击平板的计算

, 1984
在无粘不可压缩流动条件下,本文计算了夹带颗粒的均匀圆射流冲击无限平板时气流流场,并且采用两种阻力系数公式,即和,分别计算了球形小颗粒在流场中的运动轨迹。假设颗粒在射流出口处是均匀分布,得到了冲击系数曲线(在采样器研究中称之为收集几率)。讨论了计算中所作的各点假设的合理性,对粘性效应进行了分析。考虑到粘性影响,对曲线作了修正。计算表明 ...
刘大有
core  

[All-arthroscopic reduction and fixation of Pipkin type <b>Ⅰ</b> and <b>Ⅱ</b> femoral head fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lü J, Wang H, Chen L, Ni Q.
europepmc   +1 more source

大承载力钢丝绳冲击隔离器的理论设计方法

, 1990
介绍一种大承载力的新型隔冲装置的理论设计方法。该装置由具有迟滞特性的钢丝绳绕制而成,它可为快速行驶中的大型车辆和船舰提供高效率的振动与冲击隔离,也可作为爆炸冲击波沿地表传播过程中的地面基础与结构之间的隔离元件。文中对隔离器的力学特性作了理论分析,提出了设计方法,给出了各项设计参数的关系曲线 ...
申仲翰, 董智法
core  

[Expert consensus in Southwest China on the application of botulinum toxin type A in upper and mid-facial aesthetics]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sichuan Provincial Medical Association Medical Aesthetics and Cosmetology Specialty Committee.
europepmc   +1 more source

一种冲击吸能机构

, 2018
本发明公开了一种冲击吸能机构，该冲击吸能机构包括受冲击部、与受冲击部在位置上相对的相对部；所述受冲击部和相对部之间支撑有至少一个马氏体初始相形状记忆合金梁；所述受冲击部和相对部之间还可设置限位器。通过上述技术方案，本发明的冲击吸能机构不仅避免了冲击吸能过程中的二次冲击问题的出现，而且能够通过升温对形状记忆合金梁的变形进行完全恢复 ...
杨喆, 黄晨光, 魏延鹏
core  

[Effectiveness of composite loop plate around coracoid process for reconstructing coracoclavicular ligament in treatment of Rockwood type <b>Ⅲ</b> acute acromioclavicular joint dislocations]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
He H, Li N, Liu M, Wang H, Wang Q, Zhang Y.   +5 more
europepmc   +1 more source

[Effectiveness of all-arthroscopic gastrocnemius aponeurosis release and Achilles tendon insertion debridement in treatment of Haglund's disease]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jia R, Xue Y, Kong D, Zhang Y, Sun G.
europepmc   +1 more source

[Impact of disc displacement on adolescent dento-maxillofacial morphology]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Jing D, Li Y, Duan Y, Fang B, Zhao N.
europepmc   +1 more source

[Price effects of global vaccine pooled procurement]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Huang Y, Yu X, Xu M.
europepmc   +1 more source

[Partial translocation of flexor carpi radialis tendon for treatment of traumatic dislocation of first carpometacarpal joint]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Chen Y, Yang Y, Wang Z, Wang Y.
europepmc   +1 more source