Results 271 to 280 of about 302,863 (304)
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Mutually Pumped Phase-Conjugate Mirror: Two Arches Configuration
Chinese Physics Letters, 1997A mutually pumped phase conjugator with a novel photorefractive crystal of copper-doped potassium sodium strontium barium niobate is reported, in which both incoherent beams are incident upon the negative c face and they travel in geometric paths similar to the outline of two arches. The maximum reflectivity attains 21%.
Zhang Liang-min +6 more
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Optimization of pump configurations as a MINLP problem
Computers & Chemical Engineering, 1994Abstract This paper introduces a method for solving optimal pump configurations as a MINLP (mixed integer non-linear programming) problem. The pump configurations considered consist of an arbitrary number of centrifugal pumps, of different sizes, coupled in series and/or parallel.
T. Westerlund +2 more
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Comparison of Various Heat Pump Assisted Distillation Configurations
Chemical Engineering Research and Design, 1998Various heat pump assisted process configurations are analysed for two industrial case studies using a design strategy based on preliminary screening, rigorous steady state simulation and economic evaluation. The influence of heat pump type, heat load, column temperature difference, utility cost, exchanger minimum approach temperature (EMAT) on the ...
Z. Fonyo, N. Benkö
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Double-pass-pumped Tm:YAG laser with a simple cavity configuration
Applied Optics, 1998For a double-pass-pumped cw Tm:YAG laser, we developed a theoretical model, taking into account reabsorption loss and mode matching between the pumping light and the cavity mode. We also demonstrated that efficient operation can be obtained with a simple cavity configuration by using a dichroic output mirror, highly reflective at the pumping wavelength
A, Sato, K, Asai, T, Itabe
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Stability of Distributed Pump Configuration for Cooling Systems
2024 European Control Conference (ECC)Hydronic Heating, Ventilation, and Air Conditioning (HVAC) systems, where water is used as a media for cooling energy transport, are often used in large buildings. Distributed Air Handling Units (AHUs) condition the air for the cooling and ventilation needs in the building by controlling the chilled water flow.
Leth, John; id_orcid 0000-0001-6043-1687 +1 more
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Pumping Effect in a Pipe/Tank Flow Configuration
2015In Hydrodynamics, valveless pumping refers to the conveyance of a liquid filling a valveless system of combined pipes and tanks. In this chapter, it is shown that the simplest configuration of one tank-one pipe leads to a special type of singular equation.
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Enhanced Pervaporation Using A Novel Pump Configuration
"The pervaporation process is investigated in this work under the guises of process design improvements and process performance. Several avenues of research were investigated. The main aim of the project was to investigate the use of liquid ring vacuum pumps for permeate recovery at laboratory and industrial scales.openaire +1 more source
Structural basis for channel conduction in the pump-like channelrhodopsin ChRmine
Cell, 2022Yoon Seok Kim +2 more
exaly
Flow Configurations in Centrifugal Pumps Used as Turbines
1998Direct and reverse operation of hydraulic machines can be interrelated by means of a theoretical expression that is instrumental in the prediction of the turbine H-Q values from pump performance curves. Tests have been carried out on four machine configurations in order to verify the validity of the procedure.
VENTRONE, GIUSEPPE +2 more
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