Results 81 to 90 of about 1,006,156 (119)

石墨表面TiC涂层对高定向石墨/Cu复合材料热导率和抗弯强度的影响

, 2017
以高温盐浴法对天然鳞片石墨粉体(GF)进行表面TiC镀层处理,然后采用真空热压烧结法制备TiCGF/Cu复合材料,研究了粉体表面涂层和GF体积分数对复合材料微观结构、热导率及抗弯强度的影响。系列测试结果表明:随着GF体积分数的降低以及粉体表面TiC镀层的形成,TiC-GF/Cu复合材料平行于GF片层方向的热导率有所降低,抗弯强度有所提升。其中在GF的体积分数占TiC-GF/Cu复合材料70%时,这种变化最为明显,平行于GF片层方向的TiC-GF/Cu复合材料热导率下降幅度最大,从676W/(m·K ...
吕继磊, 王晨, 江南, 马洪兵, 王俊伟, 薛晨, 朱英彬, 白华   +7 more
core  

[Research progress on flexible electrode technology in brain computer interface applications]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lai Z, Feng D, Liang M, Liang W, Xu Y, Ke J.   +5 more
europepmc   +1 more source

[Treatment options and research progress of proximal tibial extra-articular fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang Y, Zhang Q, Lin Y, Fan Y.
europepmc   +1 more source

[Treatment of comminuted fractures of inferior pole of patella with Krackow suture of patellar tendon with vertical fixation through bone tunnels combined with Kirschner wire tension band]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ge Y, Zhai Y, Cui X, Li H, Huang X, Zhang W, Yu H.   +6 more
europepmc   +1 more source

Reissner型中厚板弯曲理论中的守恒积分

, 1985
基于虚功原理导出受弯,中等厚度的,Reissner型板的,与路径无关的J_R积分。该积分可作为通常二维J积分的一般情形。在线弹性情形下,还得到了J_R与弯曲板应力强度因子K之间的简单关系式。当横向剪切刚度趋于无穷大 ...
胡海昌, 柳春图
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[Endoscopic characteristics of primary gastric lymphoma and prediction of treatment response]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Wei J, Ye J, Zhou M, Fu W, Liu X, Zhai K, Shi Y, Ding S, Zhang J.   +8 more
europepmc   +1 more source

THERMAL BUCKLING AND ITS CRITICAL TEMPERATURE ANALYSIS OF SANDWICH PANELS WITH METAL-TRUSS CORE

, 2014
论文针对均匀温度场下四边简支和四边固支金属点阵夹层板的临界热屈曲温度进行了求解和参数影响分析.将点阵夹芯等效为均匀连续体,并且将夹层板的剪切刚度近似为点阵夹芯的抗剪切刚度,忽略夹芯的抗弯刚度且认为夹层板主要由面板来提供抗弯刚度.对于无法获得解析解的四边固支条件,通过对未知变量进行双傅里叶展开的方法求解了Ressiner夹层板模型的临界屈曲温度,理论分析结果与有限元计算结果吻合良好.进一步分析了不同边界条件、点阵胞元构型、点阵材料相对密度 ...
袁武, 王曦, 黄晨光, 宋宏伟
core  

[Protective effects of escin and dextromethorphan on Alzheimer disease in <i>Caenorhabditis elegans</i> models]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zhang Y, Li L, Zhu A, Xiao W, Wang Q.
europepmc   +1 more source

[Structural design and mechanical analysis of a "drum-shaped" balloon-expandable valve stent in expanded configuration]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhao Y, Hou Q, Zhou J, Chen S, Zhang H, Qiao A.   +5 more
europepmc   +1 more source

[Safety and efficacy of pulsed radiofrequency therapy for zoster-associated trigeminal neuralgia under general anesthesia]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhang J, Feng S, Zou W, Liu Z, Wang E, Yan J, Bai N, Yang S, Luo J, Ren F.   +9 more
europepmc   +1 more source