Results 71 to 80 of about 354,875 (306)

ESTIMATING POTENTIAL GAINS TO COOPERATION FOR LIMITED WATER RESOURCES ALONG THE RIO GRANDE [PDF]

open access: yes
We examine the potential gains from cooperation in the withdrawal of water from the Hueco Bolson aquifer that provides a substantial portion of municipal water supplies in El Paso, Texas and Ciudad Juarez, Mexico.
Irarrazabal, Alfonso   +3 more
core   +1 more source

Comparison of Methods of Pump Scheduling in Water Supply Systems [PDF]

open access: yes, 2001
In the domestic water supply industry, the reduction of pumping costs is a continuing objective. With the efficient scheduling of pumping operations, it is considered that 10% of the annual expenditure on energy and related costs may be saved.
Darbyshire, K, Waterworth, G
core  

Determination of water in organic solvents by flow-injection analysis with Karl Fischer reagent and a biamperometric detection system [PDF]

open access: yes, 1988
A flow-injection system with a biamperometric flow-through detector provided with two platinum plate electrodes was tested for the determination of water with a two-component pyridine-free Karl Fischer reagent.
Liang, Chen   +2 more
core   +4 more sources

Numerical Performance Evaluation of Solar Photovoltaic Water Pumping System under Partial Shading Condition using Modern Optimization

open access: yesMathematics, 2019
Renewable energy is an attractive solution for water pumping systems particularly in isolated regions where the utility grid is unavailable. An attempt is made to improve the performance of solar photovoltaic water pumping system (SPVWPS) under partial ...
Jouda Arfaoui   +4 more
doaj   +1 more source

An Intelligent Mobile Gas Drainage Pumping Station

open access: yesMeikuang Anquan, 2020
In this paper, an intelligent mobile gas pumping station is designed. By designing and installing the intelligent monitoring substation and water-softening device on the mobile gas drainage pumping station, the monitoring of various parameters in the ...
MENG Fanrui, ZHAO Yong, JING Yanbo, ZHAO Guoyong, SHAO Jirong, REN Zhichao
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Development trajectories of river basins: a conceptual framework [PDF]

open access: yes
River basin development / Water use / Water demand / Water supply / Water scarcity / Water allocation / Water conservation / Farm ponds / Tanks / Reservoirs / Irrigation management / Water use efficiency / Aquifers ...
Molle, F.
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

Energy and Cost Savings through Pumping Stations Rehabilitation. Case Study in Bucharest

open access: yesProceedings, 2018
This paper presents the results recorded by upgrading and rehabilitating the pumping stations for an urban water network with a primary goal of diminishing the operation and maintenance costs and a secondary goal of reducing the water losses in the water
Sorin Perju, Alexandru Aldea
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

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