Results 21 to 30 of about 50,562 (264)

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

Journal 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, Evan C. Wolf, Michael J. Ronayne, James W. Roche   +3 more
doaj   +1 more source

Analysis of pump stations operation mode and measures to improve them [PDF]

E3S Web of Conferences, 2023
This article presents the data analysis of pumping stations controlled by the Pumping Stations and Energy Departments (PS&ED) of the Republic of Karakalpakstan.
Kodirov D. T., Ermanov R. A., Sherbaev M. R., Musurmonov M. A.   +3 more
doaj   +1 more source

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

Journal 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, Lvyang Xiong, Fuqi Yao, Zongxue Xu   +3 more
doaj   +1 more source

PUMPING HOT WATER. [PDF]

Minutes of the Proceedings of the Institution of Civil Engineers, 1884
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openaire   +1 more source

Freshwater-salt water interface dynamics during pumping tests

Acque 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, Heesung Yoon, Soo-Hyung Lee   +2 more
doaj   +1 more source

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

Proceedings 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, G. He, J. Wu, Z. Zhu, X. Yan, T. Yang   +5 more
doaj   +1 more source

Measurement of groundwater dewatering in excavations in Tianjin

Yantu 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

Meikuang 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

Fault diagnosis of large-scale electric pumping and irrigation electromechanical equipment by integrating CWT and swin transformer

Frontiers in Mechanical Engineering
This paper proposes a large-scale electromechanical equipment fault diagnosis framework that integrates continuous wavelet transform (CWT), Swin transformer, and cross attention. Firstly, CWT uses optimized complex Morlet wavelets (impact sharpness ratio
Jin Chen
doaj   +1 more source

PERFORMACE EVALUATION OF SOLAR PHOTOVOLTAIC PUMP FOR OPERATING OF LANDSCAPE SYSTEM [PDF]

Arab Universities Journal of Agricultural Sciences, 2018
Most landscapes requires the water essentially, water pumping consumes a significant amount energy. The study carried out to evaluate the performance of a solar water pumping system for the purpose of operating landscape system.
B. Swidan, M. Mostafa
doaj   +1 more source