Results 61 to 70 of about 2,055 (147)

[Research progress in surgical techniques for treatment of limb lymphedema]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
He T, Wang Z, Zhang T, Yang F, Liu B.
europepmc   +1 more source

钢管混凝土叠合柱-H型钢梁外套筒式连接节点抗震性能试验与有限元研究

open access: yesJianzhu Gangjiegou Jinzhan
以钢管混凝土叠合柱为研究对象,设计了一种高强对穿螺栓连接的外套筒式梁柱节点。为了研究该新型节点的抗震性能和破坏机理,对3个缩尺比为1∶2的节点进行了拟静力试验。观察节点损伤过程及破坏模式,分析了梁端荷载-位移滞回曲线、骨架曲线、节点延性及耗能能力,采用ABAQUS软件建立有限元模型,研究套筒宽厚比和加强肋板厚度对节点抗震性能影响。试验及有限元研究结果表明:节点滞回曲线饱满,延性系数介于3.13~4.19之间,等效黏滞阻尼系数介于0.211~0.296之间,节点域的变形较大且耗能能力较强;随着套筒厚度增大,
李晨帆, 杨锋, 张新华
doaj  

[Analysis of Risk Factors for Meningeal Metastasis in Patients 
with Lung Adenocarcinoma Following Non-surgical Interventions]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi
Yue Y   +11 more
europepmc   +1 more source

新型球型钢支座耗能减震元件试验研究与数值模拟

open access: yesJianzhu Gangjiegou Jinzhan
在万向减震球型钢支座的基础上对其弹簧元件进行耗能设计,提出了一种新型耗能减震球型钢支座,采用钢板弹簧叠加耗能钢作为耗能减震元件。通过单调拉伸加载试验和循环拉伸加载试验,研究了Q295钢材的耗能能力,采用拟静力试验和数值分析相结合的方法,分析了支座耗能减震元件的滞回性能和自复位性能;将该新型球型钢支座应用于网架结构中,考察其耗能减震能力。研究结果表明,Q295钢材的滞回曲线饱满,具有一定的耗能能力;减震元件的耗能减震性能较好,并且具有一定的复位能力;相较于一般的弹性减震支座 ...
温旭, 姜兰潮, 秘红丹, 刘立妍
doaj  

[Clinical characteristics and outcomes of 11 neonates with venous thrombosis]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Gu XG   +4 more
europepmc   +1 more source

[High serum cystatin C is an independent risk factor for poor renal prognosis in IgA nephropathy]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Tang T   +11 more
europepmc   +1 more source

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