Results 111 to 120 of about 1,903 (155)

[Low-level laser therapy for the treatment of male infertility and erectile dysfunction]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Niu Y   +6 more
europepmc   +1 more source

[Association Between Obstructive Sleep Apnea and Behavioral Problems in Children]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Zhao X   +6 more
europepmc   +1 more source

基于冲击载荷下SF6高压断路器关键零部件动力学分析

open access: yesGaoya dianqi
在高压断路器的运行过程中,受到强冲击载荷的影响,传动机构中的连板等零件会出现形变和断裂的失效现象。为了解决这一问题,针对高压断路器在分合闸过程中受冲击力影响的情况,建立了高压断路器的冲击动力学模型,以分析其在冲击载荷下的动态响应,并计算关键零件的疲劳寿命。首先,通过气流场仿真计算分析压气室压力在分闸过程中的变化情况;然后,通过建立运动学模型对高压断路器动态特性进行计算;并根据压气室的负载反力和高压断路器的负载力建立高压断路器的动力学模型,对关键零部件在冲击作用下的受力情况进行数值模拟计算 ...
杨光   +10 more
doaj  

[Application value of hinge position design of Ilizarov circular external fixator for correcting clubfoot deformity in preventing ankle dislocation]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang D   +8 more
europepmc   +1 more source

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