Results 41 to 50 of about 2,535,910 (353)

Correlation Analysis of the Hydrodynamic Characteristics and Stability of a Self-balancing Multistage Pump [PDF]

open access: yesJournal of Applied Fluid Mechanics
The BB5 series multistage centrifugal pump is commonly utilized for its capacity to deliver a large head. However, due to the long rotor system in the BB5 series multistage pump, the unsteady flow field structure of each impeller at every stage ...
W. S. Ma   +4 more
doaj   +1 more source

Calculation of Parameters of Technological Equipment of Hydraulic Elevator Installation for Removing Sand Plugs from Wells

open access: yesНаука и техника, 2022
The paper considers the technological scheme of the hydraulic elevator installation, according to which water from a pressure tank is supplied by a working pump to the well through two parallel pipelines: a hydraulic monitor with a washing nozzle for ...
J. A. Medvedeva   +2 more
doaj   +1 more source

Pump Built-in Hamiltonian Method for Pump-Probe Spectroscopy

open access: yes, 1999
We propose a new method of calculating nonlinear optical responses of interacting electronic systems. In this method, the total Hamiltonian (system + system-pump interaction) is transformed into a different form that (apparently) does not have a system ...
Comte C.   +13 more
core   +1 more source

Spontaneous and stimulated Raman scattering in long low loss fibers [PDF]

open access: yes, 1978
This paper considers the problem of forward Raman scattering process in a single transverse mode fiber. Both pump wave depletion and spontaneous scattering are considered in the analysis.
AuYeung, John, Yariv, Amnon
core   +1 more source

DEVELOPMENT OF A SYSTEM FOR ANALYSIS AND UNLOADING OF ROAD TRAFFIC USING INFORMATION SYSTEMS

open access: yesInternational Journal of Advanced Studies, 2021
Greenhouse technology has improved significantly in recent years and the cost of associated electronic components has been steadily declining. The growing popularity of open-source software platforms and microcontrollers such as the Arduino are making ...
Linar M. Akhmetov   +3 more
doaj   +1 more source

Operation optimization study of water pump production model based on low-carbon economy concept

open access: yesFrontiers in Energy Research, 2023
The inventory and delivery rate of water pump are affected largely by the production mode. In order to improve the operation optimization of water pump production model, the simulation test method and system dynamics model were selected in the manuscript.
Jing Xu, Yixuan Lu, Yixuan Lu
doaj   +1 more source

Thin-disk laser pump schemes for large number of passes and moderate pump source quality

open access: yes, 2015
Novel thin-disk laser pump layouts are proposed yielding an increased number of passes for a given pump module size and pump source quality. These novel layouts result from a general scheme which bases on merging two simpler pump optics arrangements ...
Antognini, A.   +8 more
core   +1 more source

Artificial light-driven ion pump for photoelectric energy conversion

open access: yesNature Communications, 2019
Biological light-driven ion pumps move ions against a concentration gradient to create a membrane potential, thus converting sunlight energy directly into an osmotic potential.
Kai Xiao   +8 more
semanticscholar   +1 more source

Study on Pressure Pulsation Characteristics of Integrated Pump Gate [PDF]

open access: yesJournal of Applied Fluid Mechanics
Integrated pump-gates serve as crucial infrastructure in hydraulic engineering, urban flood control, and water transfer projects, playing a key role in enhancing engineering efficiency and ensuring public safety.
G. He   +11 more
doaj   +1 more source

Analysis of Ball Check Valves with Conical and Spherical Seat Designs from Common-Rail Pumps

open access: yesMachines, 2022
Common-rail fuel injection systems are still a good option for equipping new car models. The technology is well known, systems of this type are reliable and can be used on a wide variety of diesel and petrol engines.
Narcis-Daniel Petrea   +2 more
doaj   +1 more source

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