Results 181 to 190 of about 11,289 (219)

[An atrial fibrillation prediction model based on quantitative features of electrocardiogram during sinus rhythm in the Chinese population]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhu X, Shi Y, Shen J, Wang Q, Song T, Xiu J, Chen T, Guo J.   +7 more
europepmc   +1 more source

[Cross-session motor imagery-electroencephalography decoding with Riemannian spatial filtering and domain adaptation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Pan L, Sun X, Wang K, Cao Y, Xu M, Ming D.   +5 more
europepmc   +1 more source

[Personalized mandibular reconstruction assisted by three-dimensional retrieval model based on fully connected neural network and a database of mandibles]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Qiu S, Lian Y, Kang Y, Zhang L, Cai Y, Shan X, Cai Z.   +6 more
europepmc   +1 more source

[Biomechanical analysis of a novel bridging plate for treating Rockwood III acromioclavicular joint dislocation]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen Y, Zhang G, Li S, Luo N, Zhang Y.
europepmc   +1 more source

[Design and simulation study of positive pressure ventilation system in a simulated human biological lung]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yan Q, Wu Q, Zhang W, Pan L, Liu X, Tao W.   +5 more
europepmc   +1 more source

[Biomechanical effects of medial and lateral translation deviations of femoral components in unicompartmental knee arthroplasty on tibial prosthesis fixation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu J, Zhang J, Zhang B, Cui W, Zhang W, Chen Z.   +5 more
europepmc   +1 more source

[Association between Chinese visceral adiposity index and the risk of nephrolithiasis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Zhang W, Zheng S, Hua T, Li Y, Fan Q.
europepmc   +1 more source

[Research progress in application of intelligent remote follow-up mode in hip and knee arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tang Y, Wang X, Chai W, Yu F.
europepmc   +1 more source

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高速旋转叶片内部通道气雾冷却的数值模拟研究

Carbon Neutralization and New Power Systems, 2023
摘要：有效的叶片内部冷却对于高温下促进燃气轮机的做工性能至关重要。本文建立一个三维数值模型，并采用Realizable k-ε 湍流模型研究高速旋转工况下燃气轮机叶片内部通道的气雾冷却性能。结果发现，U 型通道气雾冷却的全局平均Nu 数随着Re 数的增大而增大，且气雾冷却远远优于空气冷却。相比于空气冷却，气雾冷却的全局平均Nu 数提升了约70-80%。U 型通道气雾冷却的传热性能随着雾滴质量分数的增加而增加，随着液滴直径的减小而增加。雾滴初始温度对U 型通道气雾冷却的性能没有影响。
杨硕 马, 钟平 张, 玉荣 谢, 永攀 程   +3 more
semanticscholar   +1 more source

颗粒沉降问题的高解析度CFD-DEM-IBM流固耦合数值模拟方法

, 2021
为实现颗粒沉降问题的精确数值模拟，探索稠密颗粒两相流中流体与颗粒间的影响机制，基于浸入边界法（IBM），建立了高解析度CFD-DEM-IBM流固耦合数值模拟方法。分别通过流体动力学方法（CFD）及离散单元法（DEM）描述连续流体及非连续颗粒，引入浸入边界法处理颗粒移动边界，并在Navier-Stokes动量方程中附加体力项以体现流固相互作用，采用交错迭代算法在同一时间步内多次迭代求解直至收敛以实现流固间的强耦合。通过单、双、群颗粒的沉降行为模拟，结果表明：与传统CFD-DEM方法相比 ...
底瑛棠, 赵兰浩, 毛佳
semanticscholar   +1 more source