Results 71 to 80 of about 569,591 (120)

[A study on three-dimensional reconstruction of coronary arteries and numerical simulation of fractional flow reserve based on deep learning]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wei J, Wang L, Zhang W.
europepmc   +1 more source

[Clinical analysis of nusinersen for spinal muscular atrophy types 2 and 3 in children]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Duan HL, Zhang CL, Wang GL, Xu YW, Wang TM, Liu FY, Peng J.   +6 more
europepmc   +1 more source

节点约束对单面连接角钢受压承载力影响试验研究

Jianzhu Gangjiegou Jinzhan
为了研究节点约束对单面连接角钢受压承载力的影响，设计了一种弹簧支座刀口铰，通过试验研究了120根等边角钢的偏心受压稳定承载力。分析了其最小轴、平行轴布置时的破坏模式、承载力及变形形态，研究了不同节点约束、构造形式对其承载力的影响，并与国内规范进行了比较。研究结果表明：最小轴布置时，构件的失效模式为弯曲失稳，旋转轴介于最小轴和平行轴之间；平行轴布置时，构件失效模式为绕与刀口铰平行的主轴的弯曲失稳；构件长细比小于120时，其承载力主要受偏心控制，偏心越大，承载力越低；构件长细比大于120时 ...
鄢秀庆, 黄兴, 李正良, 何松洋, 刘翔云, 刘红军   +5 more
doaj  

[Gait recognition based on feature-level fusion of motion posture and surface electromyography]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ma C, Li M, Yao J.
europepmc   +1 more source

[Collaborative motion control method for dual-arm surgical robots based on hybrid multi-stage optimization]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lin B, Li K.
europepmc   +1 more source

[Study on macro- and micro-mechanical properties of bone regenerative tissue during the healing process of spinal intervertebral fusion devices]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Fu R, Zhang Y, Zhu X, Zhang H.
europepmc   +1 more source

[Interpretation of the 2025 Asian Federation of Osteoporosis Societies (AFOS) Clinical Consensus: Atypical femoral fractures in patients with osteoporosis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Xie M, Kong Q.
europepmc   +1 more source

[Applications and challenges of ultra-high molecular weight polyethylene fibers in minimally invasive medical devices]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi S, Shi Y, Zhu J, Shi X, Cui N, Cui H, Zhang Z, Hou Z, Wu W, Wu P.   +9 more
europepmc   +1 more source

悬臂梁在准切线和半切线弯矩下的弯扭屈曲:一个悖论

, 2010
狭长矩形截面悬臂梁在半切线端弯矩作用下发生弯扭屈曲,临界弯矩是两类准切线弯矩临界值的两倍。本文采用静力法进行了详细的求解,并且用作者提出的能量法进行了验证,结果相同。因为半切线弯矩是两类准切线弯矩相加后的平均,因此一个直观的推论是,半切线弯矩的临界值也应该是后两者弯矩临界值的平均。本文采用ANSYS的SHELL63单元和SOLID45单元分别地对狭长矩形截面承受3种弯矩的屈曲进行了分析,结果表明3种弯矩的临界值是相同的,与直观推论一致。因此杆件理论的屈曲弯矩与直观结论和壳体有限元分析的结果的不一致 ...
张磊, 童根树
core  

[<i>In vitro</i> mechanical testing and finite element analysis of a novel β-Titanium alloy pedicle screw-rod fixation system]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li J, Liu Y, Wang D, Li H, He X, Lu T.
europepmc   +1 more source