, 2011 本文数值研究了在反压作用下二元高超声速进气道的非定常流动特性,并考察了边界层抽吸对临界不起动状态下非定常流动特性的影响。研究表明,对于基准进气道模型,当反压大到一定程度时,隔离段内形成高频高幅振荡,继续增大堵塞比,唇口附近形成大尺度分离包,进气道进入小喘振不起动状态,且小喘振可分为两个阶段,第一阶段唇口捕获流量恒定,第二阶段捕获流量出现震荡。
刘红, 岳连捷, 张新宇, 张晓嘉
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[Research advances of magnetic resonance elastography for assessing the bioinvasiveness in hepatocellular carcinoma]. [PDF]
Zhonghua Gan Zang Bing Za ZhiMa MY, Li RK.
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[Clinical characteristics and gender differences in Wagner grade 4-5 diabetic foot patients with variable severity of lower extremity atherosclerotic occlusive disease]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiGong X, Yuan T, Chen Z, Peng Y, Huang Y.
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, 2002 本实用新型涉及真空技术，具体地说是一种直流程序升温仪。由光电隔离放大器、模拟放大器、光电耦合驱动器、电流调整器、主直流电源、辅助直流电源组成，其中：光电隔离放大器以计算机D/A端口控制电压为输入信号，其输出信号经模拟放大器至光电耦合驱动器、驱动电流调整器，电流调整器由主直流电源控制，其输出端的直流电流送入电炉，电炉采样信号接模拟放大器输入端；辅助直流电源加到光电耦合驱动器的输出端。它结构简单、价格低廉、运行可靠 ...
王德峥, 朱晓雷
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[Prediction of hemodynamic parameters in pathological arterial vessels based on physics-informed neural networks]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiJi M +5 more
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Investigation on the performance of oil-water two-phase core annular flow in vertical pipes
, 2014 该文通过实验研究了垂直上升和垂直下降管道内油水两相混合液的流动特征。实验段管道的内径为25mm,垂直段长度为1500mm。为了得到油水两相环状流流型,分别在垂直管道的入口和出口处安装有收缩和扩张管道。实验中的油相为白油(97mPa?s,860kg/m~3),水为普通生活用水(1mPa?s,998kg/m~3),含油率范围为0–100%,混合速度为0.28m/s–4.65m/s。研究中,分别采用压力传感器、高速摄像机和快关阀对管道中两相流动的压降、流型和含油率等特征进行了测量和记录 ...
高梦忱 +4 more
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[Determination of <i>S-</i>enantiomer in linagliptin by supercritical fluid chromatography-ultraviolet detection]. [PDF]
Se PuLi WJ, Jin W, Liu Q, Wang J, LE J.
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[Novel advances following the integration of Baveno VII consensus definitions for the non-invasive testing of portal hypertension]. [PDF]
Zhonghua Gan Zang Bing Za ZhiChen JL, Yang CQ.
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[Pathophysiological mechanisms of coagulation dysfunction associated with liver disease]. [PDF]
Zhonghua Gan Zang Bing Za ZhiWang H, Chen X, Lu YY.
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[Preparation of mesoporous covalent organic framework core-shell stationary phase and its application in the analysis of astragaloside Ⅳ content in <i>Astragalus</i>]. [PDF]
Se PuZhao XY +7 more
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