Results 111 to 120 of about 567,919 (159)

带可替换剪切耗能梁段的防屈曲偏心支撑钢框架动力试验研究

Jianzhu Gangjiegou Jinzhan
可替换剪切耗能梁段作为与偏心支撑钢框架分离设计的独立耗能部件，不仅能在大震发生时将结构的塑性变形局限在耗能梁段区域内，更重要的是可以方便震后对结构的修复。文中制作了3榀该钢框架结构的缩尺模型，并对其进行了单向振动台试验，得到了结构的动力特性、塑性发展情况及破坏机理，并对模型的应力分布、位移响应、加速度响应等进行了分析研究。结果表明：该模型具备良好的耗能性能，剪切耗能梁段与防屈曲支撑构件分批耗能使得结构在地震作用下有较好的抗震性；带有可替换剪切耗能梁段的防屈曲偏心支撑钢框架构件的最大层间位移角符合规范要求，
殷占忠, 李星
doaj  

[Heterogeneity of tumor-associated macrophages and precision targeting strategies in hepatocellular carcinoma]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Huang K, Zhang GQ.
europepmc   +1 more source

[Research progress on poor response, resistance mechanisms, and influencing factors of immunotherapy for hepatocellular carcinoma]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Huang M, Zhang FN, Gong H, Liu CC, Zhao TT, He N.   +5 more
europepmc   +1 more source

PEC柱-钢梁摩擦耗能部分自复位组合框架抗震试验研究

Jianzhu Gangjiegou Jinzhan
为系统研究梁柱采用自复位连接组合框架的抗震机理，选取预拉杆长度设置、PEC柱截面强弱轴布置和柱脚连接方式3个设计参数，设计制作了4榀PEC柱-钢梁梁柱摩擦耗能部分自复位连接组合框架1∶2缩尺试件并进行拟静力抗震试验。通过试验现象观察和数据分析，对试件的滞回特性、抗侧刚度退化、复位能力、滞回耗能等抗震性能进行研究。结果表明：摩擦耗能部分自复位连接通过T形件长圆孔合理设置实现了“设计地震水平阶段实现复位，大震设计水平阶段自复位连接连接转化为伴随出现螺栓承压型受力实现部分自复位”的性能化设计目标；设计地震阶段，
方有珍, 高怡, 杨勇, 孙敏, 孙国华   +4 more
doaj  

[Characterization of Immune Reconstitution Patterns in B-cell Subsets Mediated by B-cell Targeted Therapies]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wang X, Zhang Y, Duan Z, Wei M, Guo Y, Feng W, Yan L, Tao Y, Cai B, Zhang J, Li W, Li Y.   +11 more
europepmc   +1 more source

自复位双肢剪切型耗能段的滞回性能与力学模型

Jianzhu Gangjiegou Jinzhan
基于双肢短剪切型耗能段、形状记忆合金（SMA）棒材的超弹性和碟形弹簧的恢复力，提出一种自复位双肢剪切型耗能段，可有效提高中心支撑结构的抗震性能和震后功能恢复能力。采用校正的有限元法对自复位双肢剪切型耗能段力学性能进行分析，研究其滞回性能和破坏模式；随后对考虑SMA棒材直径和碟形弹簧刚度的十个模型进行参数化分析。结果表明：自复位双肢剪切型耗能段具有良好的承载能力和自复位能力，以及较小的残余变形。拉力作用下，SMA棒材受拉且碟形弹簧静止；压力作用下，SMA棒材静止且碟形弹簧受压 ...
朱剑波, 曾思智, 常丽青, 邵铁峰, 胡淑军   +4 more
doaj  

[Interferon-α induces disulfidptosis occurrence in human liver cancer cells]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Bi XY, Zhang J, Xu LH, Chu XR, Liu SS, Xin YN.   +5 more
europepmc   +1 more source

[Construction of an Early-stage Risk Prediction Model for Trauma-Induced Coagulopathy]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xu X, He M, Shao M, Liu X, Yi Q, Zhang B, Huang Y, Tan C.   +7 more
europepmc   +1 more source

[Determination of 38 antibiotic residues in honey by magnetic dispersive solid-phase extraction-liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Sun J, Zhang Y, Liu FM, Zhao W, Jin Y, Zhang L, Xue XF, Chen R, Zhou HT.   +8 more
europepmc   +1 more source

[Expert consensus on the "Four-Level and Dual-Axis" comprehensive diagnostic and therapeutic system for prosthetic rehabilitation of oral diseases]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Expert Group of “Expert Consensus on the ‘Four-Level and Dual-Axis’ Comprehensive Diagnostic and Therapeutic System for Prosthetic Rehabilitation of Oral Diseases”.
europepmc   +1 more source