, 2011 本文针对高超声速二元进气道唇口激波诱发边界层分离现象，开展边界层分离流动控制研究提出了抽吸与吹气相结合的循环气流边界层分离控制方法。基于对抽吸、平行吹气的流动控制的独分析，揭示了循环气流边界层分离控制方法的作用机制，发现由于循环通道内压力与分离区吹点的压差不大，吹气只起到回补流量的作用，而抽吸是抑制边界层分离的主要因素。在此基础上发展了循环流动控制方案，采用激波点近上游的抽吸与分离区起点处的切向吹气组合的循环气流构，能够在不损失流量、不需要高压气源的情况下，成功控制大尺度的边界层分离现象 ...
岳连捷 +4 more
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[Determination of atmospheric intermediate volatility organic compounds with thermal desorption-flow modulator comprehensive two-dimensional gas chromatography- time-of-flight mass spectrometry]. [PDF]
Se PuWang R, Li YJ, Wang JH, Ma CW, Jiang JK.
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, 2014 本发明提出了一种尾流气泡探测光学系统，包括片光源、前组透镜、后组透镜、后组透镜连接切换机构，片光源和前组透镜位于同一光路，后组透镜是多组，多组的 后组透镜通过切换机构进行切换，使一组后组透镜与前组透镜对应位于同一光路。本发明尾流气泡探测光学系统，能够完成10μm～500μm的分段拍摄，并能 ...
刘西站, 薛艳博, 王维, 何俊华
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[Association between serum uric acid and airflow obstruction based on the health-checkup population]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhou Q, Yang Q, Shi S, Li P, Sun F.
europepmc +1 more source
[Study on simulated airflow dynamics of children with obstructive sleep apnea treated by different surgical methods]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiGuo W, Lei Q.
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, 1999 基于对并流下行循环流化床反应器中气固传热过程的分析，本文建立了并流下行循环流化床反应器气固传热模型。并采用稳态传热的实验方法，于内径为φ50 mm，高为 3.6m的下行床中，在气相进口温度为120～210 ℃，气体表观速率0.2～2.3 m/s，颗粒循环强度为5～35 Kg/(m~2·s)的操作范围内，进行了气固传热的实验研究，测定了下行床内颗粒温度的轴向分布。基于本文所建立的传热模型，通过对实验数据的回归整理，得到了并流下行循环流化床中，不同操作条件下的气固轴向截面传热系数和整个床层表观传热系数 ...
冯伟
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[Evaluation of the accuracy of three-dimensional data acquisition from liquid- interference surfaces assisted by a scanner head with a compressed airflow system]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanXu X +9 more
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[Preparation of fluorescent carbon dots by flow-assisted melt polymerization for tetracycline detection in medical wastewater]. [PDF]
Se PuLiu ZW +8 more
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[Development and performance testing of a high-sensitivity pulsed flame photometric detector]. [PDF]
Se PuChen JB +4 more
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[Pediatric thunderstorm asthma in China: epidemiological characteristics and comprehensive management]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiHan P, Shen KL.
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