Results 61 to 70 of about 5,341 (112)

波形腹板部分包覆组合柱弱轴方向偏心受压试验研究

Jianzhu Gangjiegou Jinzhan
针对传统部分包覆组合柱（PEC柱）中腹板易变形屈曲，以及与混凝土协同作用较弱、易分离等问题，提出一种将腹板形式由平钢板改为波形钢板的波形腹板PEC柱。考虑强弱轴方向、波形腹板方向、横向系杆间距、偏心距4个关键因素，设计10个波形腹板PEC柱试件并进行偏心加载试验。试验结果表明：波形腹板PEC柱试件在偏心受压下的破坏形态基本一致，均表现为受压侧翼缘鼓曲变形和混凝土压碎失效。试件在强轴方向的承载力较弱轴方向的承载力最大增幅为61.20%，延性最大增幅为63.06 ...
王威, 包海洋, 白淙尤, 刘磊, 陈乐乐   +4 more
doaj   +2 more sources

[Clinical symptoms and cone beam computed tomography imaging analysis of patients with temporomandibular joint osteoarthritis with chewing side preference before and after treatment of stabilization splint]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Li X, Wang J, Xu L, Xu X, Li H, Hu M, Liu H, Jiang H.   +7 more
europepmc   +1 more source

[Gout of the manubriosternal joints: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gan D, Fu Q, Tang X, Li C, Shu Z.
europepmc   +1 more source

[Determination of 40 carbonyl compounds in ambient air by high performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Li GH, Deng S, Li QQ, Zhang CL, Liu YF, Jiang B, Yao Q, Wang H, Wang BG.   +8 more
europepmc   +1 more source

[Experimental study of patient-specific three-dimensional-printed drill guide-assisted C ₂ pedicle screw placement in models derived from patients with basilar invagination]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li J, Jiang W, Cheng J, Niu C, Si W, Niu G.   +5 more
europepmc   +1 more source

[All-arthroscopic reduction and fixation of Pipkin type <b>Ⅰ</b> and <b>Ⅱ</b> femoral head fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lü J, Wang H, Chen L, Ni Q.
europepmc   +1 more source

[Correlation between fourth brachymetatarsia and hallux valgus]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liang J, Feng E, Guan H, Chen P, He J, Huang W, Xu Y, Xie J.   +7 more
europepmc   +1 more source

基于动态时间规整的变压器绕组变形故障诊断方法研究

Gaoya dianqi
绕组变形是导致变压器故障的主要原因之一，频率响应分析法是一种常用的检测绕组变形故障的方法。文中针对实际应用中，因频率响应数据解释不足导致的绕组故障诊断效果不佳、抗噪性能差和故障程度指标与实际故障程度的单调性不良等问题，提出了基于动态时间DTW（dynamic time warping）规整路径与K最邻近算法（KNN，K-nearest neighbor）的变压器绕组状态判别法、基于DTW偏离度的变压器绕组故障程度表征法。通过在一台实际变压器及一台模型变压器上的运用 ...
谭珊, 赵仲勇, 杨建, 蔡敏, 郭金龙   +4 more
doaj  

[Policy logic and multiple challenges of meal assistance services for older adults under the goal of healthy aging]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Pan W, Chen L, Zhang X, Zhang H, Min H, Lei X, Sun X, Zhang X.   +7 more
europepmc   +1 more source

[Association between wearable-derived physical activity patterns and gut microbiota in older adults]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gao J, Li W, Li X, Tan Y, Li Y, Duan L, Wu T, Chen D, Hu Y, Wang M.   +9 more
europepmc   +1 more source