[Research progress of meniscal centralization for degenerative medial meniscus extrusion]. [PDF]
Zhao Q, Niu X, Huang J.
europepmc +1 more source
框架结构在地震作用下易在柱脚处形成塑性铰,设计损伤可控且具有复位能力的柱脚节点可有效提高框架结构的抗震性能和韧性。基于实际工程应用的螺栓和盖板连接,提出了将碟簧螺栓和屈曲约束翼缘盖板分别作为恢复和耗能元件的一种碟簧螺栓连接柱脚节点。推导了节点的理论滞回模型以及部分构件的内力计算式,采用ABAQUS软件建立了节点有限元模型并进行了滞回分析。结果表明,提出节点的滞回曲线呈典型的旗帜形,损伤集中于屈曲约束翼缘盖板的核心板,碟簧螺栓有效地减小了节点残余变形;有限元模型与理论滞回模型的结果吻合较好。最后 ...
冯玉龙 +4 more
doaj +2 more sources
高压电气设备地震易损性极高,提升高压变电站电气设备抗震能力成为设备厂家和运行单位的关键技术指标。首先,以高压瓷柱式电气设备为研究对象,建立了设备多质点理论模型的运动方程和高压电气设备理论模型刚度矩阵构建方法,开展了减震设计及其减震元件参数优化分析,研究了减震元件参数对设备减震效果的影响。其次,定义了设备减震元件的刚度比、名义阻尼比和结构响应的减震比等设计参数,以设备地震响应的减震比为优化目标,确定了减震元件主要设计参数的合理取值范围。最后,建立了一台220 kV SF6断路器有限元模型 ...
程义凯, 曹枚根, 郑翀, 夏祥泰
doaj
[Research progress of hydrogel-based growth factors for treatment of intervertebral disc degeneration]. [PDF]
Huo X, Li Z.
europepmc +1 more source
[Analyzing the factors influencing speech recognition ability in patients with age-related hearing loss]. [PDF]
Zhang W, Yu S.
europepmc +1 more source
[The diagnostic strategy, procedure and pathway for acute vestibular syndrome SCD]. [PDF]
Kong W.
europepmc +1 more source
[<i>Clostridium perfringens</i> Beta1 toxin induces macrophage pyroptosis and ferroptosis through the purinergic receptor P2X7-Ca<sup>2+</sup> axis]. [PDF]
Zhang S, Ran L, Zeng J, Wang Y.
europepmc +1 more source
[<i>Tianma Gouteng</i> Granule improves motor deficits in mouse models of Parkinson's disease by regulating the necroptosis pathway]. [PDF]
Chen D +7 more
europepmc +1 more source
[Research progress in motor assessment of neurodegenerative diseases driven by motion capture data]. [PDF]
Wu J, Guo W, Luo K, He L, Yang G.
europepmc +1 more source
[Neuroprotective effects of idebenone combined with borneol via the dopamine signaling pathway in a transgenic zebrafish model of Parkinson's disease]. [PDF]
Wang Q +5 more
europepmc +1 more source

