Results 71 to 80 of about 12,805 (118)

[Effect of composite graphene-protein hydrogels on neural regeneration after spinal cord injury in rats]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang Z, Fan Z, Wang X, Zhu Z.
europepmc   +1 more source

[Apply the Miettinen Formula to Assess the Health Benefits of the PM_2.5 Simulation Intervention on Metabolic Syndrome]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Chen K, Han X, Yang Y, Wang P.
europepmc   +1 more source

[Research advances on subchondral insufficiency fracture and osteonecrosis of the knee]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zou Z, Zeng Y, Zeng J.
europepmc   +1 more source

降雨条件下高压直流导线粗糙系数的表征方法

Gaoya dianqi
导线表面的粗糙系数m是影响起晕场强预估的关键因素之一。在降雨条件下，高压直流输电线路表面极易附着雨滴，导线表面状况发生改变，而导线表面状况的改变会直接影响Peek公式中粗糙系数m的大小，导致预估的起晕场强与实际值误差较大。目前降雨条件下粗糙系数m的取值没有统一的标准，文中通过引入形变系数W与分布系数f表征雨滴的大小以及分布密度对起晕场强的影响，利用起晕场强与二者之间的变化规律，建立了形变系数、分布系数与粗糙系数之间的关联关系，得到不同降雨程度下粗糙系数m的表达式，从而修正Peek公式 ...
李晓云, 马爱清, 张成武, 徐进帅   +3 more
doaj  

整段拼装式输电塔对接节点承载力试验研究

Jianzhu Gangjiegou Jinzhan
文中针对角钢铁塔，设计出一种上下两端完全分开、形成独立段的结构，各段间采用圆形座板式对接。该结构可减少主材接头处螺栓群的数量，既有利于优化现有施工组塔方式，提高组塔效率与施工安全性，也为机器人登塔作业提供便利条件。其中，对接节点是保障整塔稳定的关键部件，为明确其承载机制、破坏模式及极限承载力，文中开展了10个足尺节点抗拉承载力试验研究，考察了底板厚度、底板直径、孔位直径及螺栓孔径对节点荷载-位移曲线及承载力的影响。同时建立了合理的对接节点有限元模型，进一步研究了节点底板尺寸、螺孔尺寸 ...
陈锡祥, 张金锋, 罗义华, 张树林, 李涛, 张佳伦, 刘红军   +6 more
doaj  

[Tumor-secreted dentin sialophosphoprotein induces oxaliplatin resistance in colorectal cancer through an integrin αvβ3-dependent pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Liu C, Ning Z, Wu J, Liu W, Lin C, Xu J, Zhou R, Zhao L.   +7 more
europepmc   +1 more source

[Clinical application effects of the "three-source and four-line method" in the design and harvest of anterolateral lower leg perforator flaps]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wu CL, Zhang Y, Cheng JN, Liu YC, Cao Y, Wang GY, Wang S, Dong S, Liu YF, Ju JH.   +9 more
europepmc   +1 more source

[Research advances on the targeted programmed cell death regulatory network for treatment of refractory diabetic wounds]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Zhang ZH, He WF.
europepmc   +1 more source

[Image classification of osteoarthritis based on improved shifted windows transformer and graph convolutional networks]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Jiang L, Cao H, Ma Z.
europepmc   +1 more source

[Current status and prospects of family financial toxicity in childhood malignancies]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wu ST, Wang CL, Shi DR.
europepmc   +1 more source