, 1984 本文对液固搅拌槽中固体颗粒的停留时间分布性质进行了初步的研究。实验测定了具有一定粒度分布的颗粒的停留时间分布曲线。固体液度用光导纤维固体空隙率仪进行测量，颗粒粒度分布用激光粒度仪测量，实验体系为水道水～3A 催化剂。固体重量浓度为1% ～ 4%，搅拌速度为580 rpm, 800 rpm，出口位置有上、下两种。通过实验，测定了不同浓度下固体的停留时间分布曲线以及不同浓度下不同粒级的固体颗粒的停留时间分布曲线。实验结果表明，固体颗粒的停留时间分布性质与理想混合有一定偏差 ...
毛慧华
core
[Effect of High-Altitude Hypoxia on the Pharmacokinetics and Brain Distribution of Phenytoin Sodium in Epileptic Rats]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhang X +5 more
europepmc +1 more source
[Calcification distributional density of the aortic-valvular complex is an independent risk factor for conduction block following self-expanding transcatheter aortic valve replacement]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Wang W +8 more
europepmc +1 more source
, 2000 反应气分配对车用质子交换膜燃料电池(PEMFC)性能的影响至关重要，不均匀的反应气分配将引起电池整体性能的降低及不均一的衰减。研究车用质子交换膜燃料电池不同操作条件下的分布特性，对提高其性能及寿命具有重要意义。 本文设计制备了PEMFC分式结构单池，发展了局部交流阻抗、电流分布、温度分布以及局部界面电势等局部定位测试手段，实现了对电池多个参数分布特性的在线同步测量。 在测试装置建立的基础上，本文首先研究了稳态条件下电池的分布特性，探明了电池电流分布规律。然后研究了动态加载过程中电池电压 ...
梁栋
core
[Distribution of respiratory pathogens in patients with pneumonia in Yinzhou, Ningbo, 2015-2024]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanYang Z +8 more
europepmc +1 more source
[Dynamic distribution and clearance of <sup>99m</sup>Tc-DTPA in brain extracellular space]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZou J +12 more
europepmc +1 more source
[Clinical features and virulence gene distribution of <i>Klebsiella pneumoniae</i> multi-site infection in patients with hospital-acquired pneumonia]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanGeng Y +5 more
europepmc +1 more source
[Spatial distribution of cognitive dysfunction and its risk factors in Chinese population aged 45 years and above]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 He S, Zhang J, Yang R, Yuan P.
europepmc +1 more source
[Analysis of HCV genotype distribution characteristics in the Hotan region]. [PDF]
Zhonghua Gan Zang Bing Za ZhiWubuliaishan M +8 more
europepmc +1 more source