Results 81 to 90 of about 1,692 (112)

[Cyclic fatigue resistance of nickel-titanium files made by Gold heat treatment in simulated S-shaped root canals at different temperatures]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Chen W, Hou X.
europepmc   +1 more source

多因素耦合作用下高强钢焊缝连接疲劳性能研究进展

Jianzhu Gangjiegou Jinzhan
焊接是钢结构广泛采用的连接形式。在提高钢材强度等级后，焊接接头在服役过程中对蚀坑、裂纹等缺陷的敏感度增强，且焊接会劣化钢材成分、组织性能进而导致焊接接头产生初始缺陷。因此，在环境腐蚀、应力集中、超载等因素作用下，钢结构焊缝连接未达到设计服役年限就发生疲劳断裂，造成严重的资源浪费。基于对多因素耦合下高强钢焊缝连接疲劳性能研究现状的总结，介绍了腐蚀疲劳机理及腐蚀预测模型，分析了疲劳设计方法及疲劳寿命评估理论，归纳了焊接残余应力、点蚀坑以及初始裂纹对焊缝连接疲劳性能的影响。结果表明：焊接工艺 ...
郭宏超, 关晓迪, 王铳, 赵越
doaj  

[Enhancement algorithm for surface electromyographic-based gesture recognition based on real-time fusion of muscle fatigue features]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yan S, Yang Y, Yi P.
europepmc   +1 more source

[Mental fatigue state recognition method based on convolution neural network and long short-term memory]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wang H, Zhang P, Jin F, Zhao B, Zeng Q, Xiao W.   +5 more
europepmc   +1 more source

[A simulation study on the differences in compressive mechanical properties of Voronoi porous structures with two strut-diameter morphologies]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Men Y, Wang T, Wu M, Zhang C.
europepmc   +1 more source

[Effect of modified hot-etching treatment on the mechanical properties of zirconia and zirconia/resin bond strength]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Yang X, Wu Y, Lv P.
europepmc   +1 more source

[Effectiveness analysis of muscle fatigue in rehabilitation based on surface electromyogram]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2019
Liu X, Li M, Wang L, Wang Y, Liu X, Wang H.   +5 more
europepmc   +1 more source

[Adaptive weighted fuzzy iterative learning control strategy for functional electrical stimulation integrating guiding-side surface electromyogram threshold gating and dynamic frequency adjustment]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu S, Wu J, He W, Mou Y, Ding L, Bao X, Zhou Y.   +6 more
europepmc   +1 more source

[Research on classification of brain functional network features during mental fatigue]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2018
Yang S, Ai N, Wang L, Zhang Y, Xu G.
europepmc   +1 more source

[<i>Qingjie Fuzheng</i> Granules alleviates 5-fluorouracil-induced skeletal muscle injury in tumor-bearing mice by inhibiting mitochondria-dependent apoptosis and activating the AMPK-PGC-1α pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhao J, Peng J, Lin M, Zhu X, Huang B, Lin J.   +5 more
europepmc   +1 more source