Results 21 to 30 of about 2,535,910 (353)

Cross-Coupled Charge Pump Synthesis Based on Full Transistor-Level [PDF]

, 2019
This paper presents utility for the design of the cross-coupled charge pump, which is used for supplying peripherals with low current consumption on the chip, as the EEPROM or FLASH memories.
Hospodka, Jiří, Marek, Jan, Šubrt, Ondřej   +2 more
core   +2 more sources

Behavior of axial thrust caused by intake sump vortices in a vertical mixed flow pump

Nihon Kikai Gakkai ronbunshu, 2017
Axial thrust forces acting on an impeller of a diffuser type mixed flow pump and the behavior of the axial thrust generated by the vortex occurrence in a pump intake sump were studied.
Yuji KANEMORI, Yasuo HANDA
doaj   +1 more source

Performance prediction and experimental study of variable displacement vane oil pump

The Journal of Engineering, 2020
In order to fully predict the performance of variable displacement vane oil pump (VDVP) during concept design phase， one-dimensional simulation software AMESim is used to model the centralised parameters of VDVP.
Shang Hong He, Xiang Liu, Shixuan Xiao, Guangming Liu, Hao Cai   +4 more
doaj   +1 more source

Production system and method for producing fluids from a well [PDF]

, 2004
A production system and method for producing fluids from a well are presented. The production system may include a submersible pump and a jet pump. The submersible pump may be arranged within the well.
Carvalho, Paulo M., Podio, Augusto L., Sepehrnoori, Kamy   +2 more
core   +1 more source

Research on transient heat transfer of ball valves in high-pressure liquid hydrogen receiving stations

Results in Engineering, 2023
As one of the most important fluid control devices in the liquid hydrogen receiving station, the liquid hydrogen ball valve's performance directly affects the system's stability.
Shuxun Li, Mingxing Zheng, Yixue Wang, Lingxia Yang, Bohao Zhang, Jianzheng Zhang   +5 more
doaj   +1 more source

Femtosecond Pump-Probe Diagnostics Of Preformed Plasma Channels [PDF]

, 2004
We report on recent ultrafast pump-probe experiments 28 in He plasma waveguides using 800 nm, 80 fs pump pulses of 0.2 x 1018 W/cm2 peak guided intensity, and single orthogonally-polarized 800 nm probe pulses with similar to0.1% of pump intensity.
Debus, A., Downer, M. C., Gaul, E. W., Matlis, N. H., Shvets, G., Zgadzaj, R.   +5 more
core   +1 more source

Development of a One-Dimensional Model for the Prediction of Leakage Flows in Rotating Cavities Under Non-Uniform Tangential Pressure Distribution

International Journal of Turbomachinery, Propulsion and Power, 2019
Regenerative pumps are characterized by a low specific speed that place them between rotary positive displacement pumps and purely radial centrifugal pumps.
Giulio Cantini, Simone Salvadori, Massimiliano Insinna, Giorgio Peroni, Gilles Simon, Duccio Griffini, Raffaele Squarcini   +6 more
doaj   +1 more source

Study On Acoustic Characteristics Of Internal Leakage Of Micro-start Spring Safety Valve

Journal of Applied Science and Engineering, 2023
To investigate the noise radiation in the leakage of the safety valve. The acoustic fluid-solid coupling simulation analysis of the leakage process of the safety valve is used to study the flow field when the safety valve is leaking.
Shuxun Li, Xuedong Zhang, Yunxin Kang, Jianjun Hou, Jingwei Liu   +4 more
doaj   +1 more source

Influence of diatom diversity on the ocean biological carbon pump

Nature Geoscience, 2017
Diatoms sustain the marine food web and contribute to the export of carbon from the surface ocean to depth. They account for about 40% of marine primary productivity and particulate carbon exported to depth as part of the biological pump.
P. Tréguer, C. Bowler, Brivaëla Moriceau, S. Dutkiewicz, M. Gehlen, O. Aumont, L. Bittner, R. Dugdale, Z. Finkel, D. Iudicone, O. Jahn, L. Guidi, M. Lasbleiz, K. Leblanc, M. Lévy, P. Pondaven   +15 more
semanticscholar   +1 more source

Study on the Cavitation Performances and Unsteady Characteristics of a Centrifugal Fire Pump [PDF]

Journal of Applied Fluid Mechanics
Centrifugal fire pumps are critical for firefighting systems but suffer from cavitation and instability under off-design conditions. However, systematic analyses of their flow-rate-dependent dynamics remain limited. This study systematically investigates
J. Hao, C. Yu, Y. Fu, P. Zhang, D. Hou, Y. Shen, J. Yuan   +6 more
doaj   +1 more source