Results 61 to 70 of about 109,720 (300)

Design Method for Low Specific Speed Axial Flow Pump for High-Speed Undersea Vehicles

水下无人系统学报
For the axial flow pumps water-jet propulsion system of undersea vehicles, the high specific speed axial flow pump designed by the lift method fails to work under shallow water and high-speed conditions at present.
Ziruo ZHANG, Kai LUO, Kan QIN
doaj   +1 more source

Influence of guide vanes on the flow fields and performance of axial pump under unsteady flow conditions: Numerical study

Journal of Mechanical Engineering and Sciences, 2020
Influence of different guide vanes on structural of flow field and axial pump performance under unsteady flow is carried out using numerical method. A three-dimensional axial flow pump model is numerically simulated using computational fluid dynamics ...
Ahmed Ramadhan Al-Obaidi
doaj   +1 more source

Numerical Simulation and Experiment of the Effects of Blade Angle Deviation on the Hydraulic Characteristics and Pressure Pulsation of an Axial-Flow Pump

Shock and Vibration, 2021
Inadequate blade angle adjustment or manufacturing errors will cause inconsistencies in the blade angle of an axial-flow pump. In this study, the hydrodynamic characteristics of an axial-flow pump with inconsistent blade angle are investigated by ...
Lijian Shi, Jun Zhu, Yao Yuan, Fangping Tang, Penglan Huang, Wenpeng Zhang, Haiyu Liu, Xiaowen Zhang   +7 more
doaj   +1 more source

Numerical Flow Analysis of an Axial Flow Pump [PDF]

, 2015
This paper describes the detailed study of fluid flows in an axial pump that includes impeller and guide vanes. And the comparisons of flow simulations of the axial pump impeller with guide vanes and without guide vanes are carried out in this paper.
Soe, A. K. (Aung), Soe, M. M. (Myat), Win, Z. E. (Zin)   +2 more
core  

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

A numerical flow simulation of a mixed flow pump [PDF]

, 2002
Mixed flow pumps are primarily axial flow pumps, but they impart some degree of radial and swirling momentum to the pump fluid as it passes through the rotor section.
Blanco, E., Fernandez, J., Parrondo, J., Scanlon, T.J., Stickland, M.T.   +4 more
core  

Emerging insights into CC and CXC chemokines and their receptors in Mycobacterium tuberculosis infection

FEBS Open Bio, EarlyView.
The dual roles of CC and CXC chemokines in distinguishing active, latent, and subclinical tuberculosis were reviewed, along with an evaluation of their potential as diagnostic biomarkers and therapeutic targets to advance precision medicine in tuberculosis management. The graphical abstract was generated with AI assistance (Gemini 3.0).
Xuying Yin, Dangsheng Xiao, Jiezuan Yang
wiley   +1 more source

A numerical investigation on the vortex formation and flow separation of the oscillatory flow in jet pumps [PDF]

, 2015
A two-dimensional computational fluid dynamics model is used to predict the oscillatory flow through a tapered cylindrical tube section (jet pump) placed in a larger outer tube.
ANSYS, Douglas Wilcox, Idel'chik I., Joris P. Oosterhuis, Morris P., Oosterhuis J. P., Simon Bühler, Swift G. W., Theo H. van der Meer   +8 more
core   +3 more sources

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

Analysis of internal flow characteristics and structure optimization of vertical submersible axial flow pump device

Advances in Mechanical Engineering, 2022
In order to investigate the internal flow characteristics and hydraulic stability of vertical submersible pump station in forward and reverse operation, the steady and unsteady three-dimensional numerical simulation of vertical submersible axial-flow ...
Fan Yang, Zhikang Lin, Jindong Li, Ahmed Nasr, Weiguo Cong, Chao Li   +5 more
doaj   +1 more source