Results 61 to 70 of about 351,968 (210)

Hydrogeological and Mining Considerations in the Design of a Pumping Station in a Shaft of a Closed Black Coal Mine

open access: yesEnergies
In an overwhelming number of cases, the closure of a coal mine in Poland, for safety reasons, requires the installation of a pumping station and systems for the drainage of inflowing water due to its connection via roadways, goaves, or water-leaking ...
Kajetan d’Obyrn   +4 more
doaj   +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  

Policies drain the North China Plain: Agricultural policy and groundwater depletion in Luancheng County, 1949-2000 [PDF]

open access: yes
Agricultural production / Groundwater / Aquifers / Water shortage / Irigation efficiency / Agricultural policy / Crop production / Wastewaters / Water management / Hydrology / Economic development / Crop yield / Cotton / Wheat / Sprinkler irrigation ...
Kendy, E.   +3 more
core  

Research on experiment for operation performance of water pumping and energy storage by photovoltaic pump

open access: yesEnergy Exploration & Exploitation
In this article, the behaviors of both flow and generated output of photovoltaic pump, the characteristics of both water pumping efficiency and output frequency, and the feature of charge capacity in accumulators have been tested through experiments ...
Yanjin Wang   +5 more
doaj   +1 more source

Prediction of the Effect of Pumping on Al-Wasia Well Field

open access: yesJournal of King Saud University: Engineering Sciences, 1997
Al-Wasia Aquifer is one of the major aquifers in Saudi Arabia which is found in the Central and Eastern regions of the country. Al-Wasia well field (62 wells) has been in operation since 1981 to supply water to Riyadh.
Saleh A. Al-Hassoun
doaj   +1 more source

water pump accessories

open access: yes, 2021
A water pump and water pump accessories are essential parts of today s water system. As advanced technologies are developed, the whole pump systems have become smarter which are able to reach maximum efficiency. To achieve better performance, various water pump accessories are applied including water pump pressure controllers, pressure tanks ...
openaire   +1 more source

Interim report on the ground-water resources of Seminole County, Florida [PDF]

open access: yes, 1954
Salt-water encroachment is undoubtedly the problem of most concern to users of ground water in Florida. This is a problem in many coastal areas where water levels are lowered excessively by heavy pumping.
Barraclogh, Jack T., Heath, Ralph C.
core  

A model predictive control approach to the periodic implementation of the solutions of the optimal dynamic resource allocation problem [PDF]

open access: yes, 2011
This paper proposes a model predictive control (MPC) approach to the periodic implementation of the optimal solutions of a class of resource allocation problems in which the allocation requirements and conditions repeat periodically over time.
Aissi   +20 more
core   +1 more source

Photovoltaic water pumping applications: Assessment of the near-term market [PDF]

open access: yes
Water pumping applications represent a potential market for photovoltaics. The price of energy for photovoltaic systems was compared to that of utility line extensions and diesel generators.
Bifano, W. J.   +4 more
core   +1 more source

Lune, Wyre & Furness Fisheries Advisory Committee 6th June, 1974 [PDF]

open access: yes, 1974
This is the first report from the Lune, Wyre and Furness Fisheries Advisory Committee meeting, which was held on the 6th June 1974. The report includes sections on fishery byelaws, estimates for the anticipated income and expenditure on fisheries for ...

core  

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