Results 1 to 10 of about 92,781 (120)

Experience of employment of computational models for water quality modelling [PDF]

open access: yesE3S Web of Conferences, 2019
The purpose of the article is to develop the required and sufficient conditions under which numerical methods can be used for engineering calculations and for scientific research of hydrodynamic processes in solving practical problems related to ...
Krutov Anatoly   +4 more
doaj   +1 more source

Optimizing the cost of pumping of urban drinking water wells using the PSO metaheuristic Algorithm [PDF]

open access: yesمهندسی منابع آب, 2021
The interaction effect of pumping costs and water consumption must be controlled and optimized. Supplying drinking water from underground water resources must be done according to a precise pre-designed plan so that It is optimized for both pumping and ...
Masoud Abdi   +2 more
doaj   +1 more source

Effect of parallel connection of pumping units on operating costs of pumping station [PDF]

open access: yesE3S Web of Conferences, 2019
In Uzbekistan, as well as in many other countries of the world, pumping units operate in parallel into a common pressure pipeline at some pumping stations of the irrigation system.
Ikramov Nazir   +3 more
doaj   +1 more source

Automatically tracking feeding behavior in populations of foraging C. elegans

open access: yeseLife, 2022
Caenorhabditis elegans feeds on bacteria and other small microorganisms which it ingests using its pharynx, a neuromuscular pump. Currently, measuring feeding behavior requires tracking a single animal, indirectly estimating food intake from population ...
Elsa Bonnard   +4 more
doaj   +1 more source

Multi-condition optimization and experimental verification of impeller for a marine centrifugal pump

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2020
In order to improve the performance of marine centrifugal pump, a centrifugal pump whose specific speed is 66.7 was selected for the research. Outlet diameter D2, outlet width b2, blade outlet angle β2, blade wrap φ and blade number z of the impeller ...
Kai Wang   +4 more
doaj   +1 more source

Evaluation Of Thermo Hydraulic Performance Of Passive And Compound Inserts

open access: yesJournal of Applied Science and Engineering, 2023
In the present investigation, the heat transfer and pressure drop performance of a tube in tube heat exchanger fitted with Bakelite helical screw tape and aluminum hemispherical cup shape with threaded core rod insert is experimentally reported for ...
Arvind A. Kapse   +2 more
doaj   +1 more source

A Novel Spacetime Boundary-Type Meshless Method for Estimating Aquifer Hydraulic Properties Using Pumping Tests

open access: yesMathematics, 2023
This article introduces a new boundary-type meshless method designed for solving axisymmetric transient groundwater flow problems, specifically for aquifer tests and estimating hydraulic properties.
Cheng-Yu Ku, Chih-Yu Liu
doaj   +1 more source

Comparative Study of Different Measurement Methods for Characterizing Rheological Properties of Lubrication Layer

open access: yesMolecules, 2021
The lubrication layer plays a governing role in predicting the pumpability of fresh concrete. To determine the effect of measurement methods on the characterization of the rheological properties of the lubrication layer, different measurement systems ...
Yu Liu, Rui Jing, Peiyu Yan
doaj   +1 more source

Visualizing test on the pass-through and collision characteristics of coarse particles in a double blade pump

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2018
As the key equipment in deep ocean mining, the slurry pump suffers from wear and blocking problems. In this paper, high-speed photography technique is applied to track the movement rule of single particle of the coarse particle solid–liquid two-phase ...
Minggao Tan   +4 more
doaj   +1 more source

Reducing energy demand by the combined application of advanced control strategies in a full scale WWTP

open access: yesWater Science and Technology, 2021
Two advanced control strategies were applied in the secondary and tertiary stages, respectively, of a full scale wastewater treatment plant (WWTP). This has a nominal capacity of 330,000 population equivalent (PE), a complex configuration (having been ...
G. Bertanza   +3 more
doaj   +1 more source

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