Results 51 to 60 of about 1,009 (102)

基于时变因素影响的弧齿锥齿轮副间隙动力学研究

Jixie chuandong, 2015
基于时变啮合阻尼、时变啮合刚度和静态传递误差的考虑,建立了含间隙的弧齿锥齿轮副扭转动力学模型,并采用Runge-Kutta法求解,主要分析时变啮合阻尼和齿侧间隙对系统响应的影响。计算结果表明,系统的非线性振动特性受时变啮合阻尼和间隙的影响较明显。随着阻尼系数和间隙的改变,系统振幅在一定范围内会产生较明显的波动,而且还会出现周期、拟周期和混沌运动以及分岔和跳跃现象等非线性特性。
邱桓松, 袁杰红, 李源
doaj  

[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ling Y, Han J, Zhang Z, Peng Y, Zhang J, Chen Z, Jin Z.   +6 more
europepmc   +1 more source

[Case Report of One Family With Coffin-Lowry Syndrome and Literature Review of 28 Cases in China]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zhu D, Yang W, Zhang L.
europepmc   +1 more source

[Clinical application and mechanistic studies of psychedelics for treatment of depression: progress and future challenges]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia K, Gao T.
europepmc   +1 more source

[Analysis of risk factors for early failure of simple taper retentive implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang X, Wan Z, Wei S, Yu F, Cao N, Cao L, Wu H, Guo S, Wei H.   +8 more
europepmc   +1 more source

[Imaging study of osteogenesis in maxillary sinus segment of zygomatic implants]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Yu Z, Guo H, Jiang X, Han W, Lin Y.
europepmc   +1 more source

[Research advances in the inhibitory effect of chondroitin sulfate proteoglycans on axon growth after premature white matter injury and its underlying mechanisms]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Tian XJ, Gao RW, Chen C.
europepmc   +1 more source

[Progresses on temporal interference electromagnetic stimulation for non-invasive deep brain function modulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhou T, Yu P, Xu Y.
europepmc   +1 more source

[Role of the Nrf2/HO-1 pathway in cypermethrin-induced oxidative injury of mice hippocampal neurons]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhou L, Zhang X, Yu Y, Zhang P.
europepmc   +1 more source

[Enriched environment reduces pyramidal neuron excitability in the anterior cingulate cortex to alleviate restraint stress-induced anxiety-like behaviors in mice]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen C, Fang Q, Gao Y, Wang L, Chen L.
europepmc   +1 more source