Results 31 to 40 of about 7,299,202 (356)

Effects of groundwater pumping on the sustainability of a mountain wetland complex, Yosemite National Park, California

open access: yesJournal of Hydrology: Regional Studies, 2015
Study Region: We analyzed the effects of groundwater pumping on a mountain wetland complex, Yosemite National Park, California, USA. Study Focus: Groundwater pumping from mountain meadows is common in many regions of the world.
David J. Cooper   +3 more
doaj   +1 more source

Solar Water Pumping System for Agriculture

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2020
The technology of Agriculture is changing rapidly. Agricultural equipment, agricultural infrastructure and production facilities are being constantly developed. Most photovoltaic (PV) solutions are used in agriculture.

semanticscholar   +1 more source

Optimizing regional irrigation water allocation for multi-stage pumping-water irrigation system based on multi-level optimization-coordination model

open access: yesJournal of Hydrology X, 2019
The optimal allocation and utilization of irrigation water are particularly significant but complex in multi-stage pumping-water irrigation systems which involve both water distribution processes and machine operation management.
Yao Jiang   +3 more
doaj   +1 more source

Experimental study on mechanism for pumping-induced land subsidence [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2020
Groundwater pumping can cause severe land subsidence, yet the mechanisms have not been completely clear. A laboratory physical model test was done to investigate the mechanism for pumping-induced land subsidence.
Y. Zhang   +5 more
doaj   +1 more source

Freshwater-salt water interface dynamics during pumping tests

open access: yesAcque Sotterranee, 2019
Freshwater-salt water interface (FSI) location is very important information for decision maker in managing coastal aquifer system, however, its temporal change have been hard to get using conventional method such as EC monitoring at one or several fixed
Yongcheol Kim   +2 more
doaj   +1 more source

Review of photovoltaic water pumping system research

open access: yes, 2020
Currently a considerable and the most economically justified potential of making the solar energy conversion more efficient and making the solar energy more attractive for consumers involves the coordination of the entire equipment from generation to ...
O. Shepovalova   +2 more
semanticscholar   +1 more source

Solar array fed synchronous reluctance motor driven water pump : an improved performance under partial shading conditions [PDF]

open access: yes, 2019
An improved performance of a photovoltaic (PV) pumping system employing a synchronous reluctance motor (SynRM) under partial shading conditions is proposed.
Al-Dhaifallah, Mujahed   +3 more
core   +2 more sources

Measurement of groundwater dewatering in excavations in Tianjin

open access: yesYantu gongcheng xuebao, 2019
Based on the characteristics of engineering geology and hydrogeological characteristics in Tianjin, multiple excavation dewatering projects are monitored comprehensively in the entire process.
DIAO Yu 1, 2, GAO Ze-dong 1, 2, ZHENG Gang 1, 2, CHU Zhen-xi 1, 2, GUO Yong-zhi 1, 2, JIA Zhen-yang 1, 2
doaj   +1 more source

Experimental Study on Drainage of Strata Water-Bearing and Permeability in Huangyuchuan Coal Mine

open access: yesMeikuang Anquan, 2020
The pumping test was carried out by arranging pumping holes in the ground of Huangyuchuan Mine to test the water inflow, permeability coefficient and influence radius of different hole positions, and to master the characteristics of water and ...
WU Hongtao, CHEN Jiangfeng, WANG Chongping, DOU Hao3
doaj   +1 more source

Suitable and optimal locations for implementing photovoltaic water pumping systems for grassland irrigation in China [PDF]

open access: yes, 2017
Grassland plays a key role for the food security of China because of the large number of livestock raised in those areas. Thus, grassland degradation due to climate change and overgrazing is considered as one of the most severe environmental and economic
Campana, P.E.   +9 more
core   +1 more source

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