Results 101 to 110 of about 1,644 (197)

摩擦耗能型摇摆柱节点抗震性能研究

Jianzhu Gangjiegou Jinzhan
基于可恢复功能的概念，提出了一种摩擦耗能型摇摆柱节点。阐述了该节点的构造形式并研究了其抗震性能。通过试验和数值模拟，分析了轴压比、弹簧刚度等参数对节点抗震性能的影响及节点在余震和修复情况下的韧性。研究结果表明，在±3%层间位移角内，节点呈现出低损伤特性，摇摆柱始终保持弹性。在轴向力作用下，滞回曲线呈明显的“旗帜形”，节点具有良好的自复位性能，最大残余转角仅为0.23%。通过重新拧紧螺栓，节点性能即可恢复至震损前水平，实现抗震韧性。弹簧刚度的增大可以显著提高节点的抗弯承载力；增大轴压比可以提高节点的“屈服”
李成玉, 姚宗杰, 张睿, 贾良玖, 陈焰周   +4 more
doaj  

[Cannabidiol inhibits neuronal endoplasmic reticulum stress and apoptosis in rats with multiple concussions by regulating the PERK-eIF2α-ATF4-CHOP pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yang Y, Yang L, Wu Y, Duan Z, Yu C, Wu C, Yu J, Yang L.   +7 more
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

公路桥梁抗震性能分析与加固技术研究

李文海, 胡鹏涛
openalex   +1 more source

[Spermine suppresses GBP5-mediated NLRP3 inflammasome activation in macrophages to relieve vital organ injuries in neonatal mice with enterovirus 71 infection]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Tian Z, Yang Q, Chen X, Zhang F, Zhong B, Cao H.   +5 more
europepmc   +1 more source

地震作用下钢筋混凝土框架结构抗震性能分析

张志华
openalex   +1 more source

[Eye acupuncture improves neural function in rats with cerebral ischemia-reperfusion injury by promoting angiogenesis <i>via</i> upregulating METTL3-mediated m⁶A methylation]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Pu Y, Wang Z, Chu H.
europepmc   +1 more source

[Curcumin inhibits lipid metabolism in non-small cell lung cancer by downregulating the HIF-1α pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li D, Chu J, Yan Y, Xu W, Zhu X, Sun Y, Ding H, Ren L, Zhu B.   +8 more
europepmc   +1 more source

公路桥梁结构抗震性能评估与加固研究

潘文帅
openalex   +1 more source

[NDUFAF2 gene mutation presenting as primary pulmonary hypertension: a case report]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Yan XD, Chen YY, Tao L.
europepmc   +1 more source