Results 11 to 20 of about 375,580 (241)
Hydraulic Performance of Automatic Flushing Valve at the End of Dripline
Guan'gai paishui xuebao, 2021 【Background and objective】 Emitter clogging is a problem facing drip irrigation and drip-line flushing is an effective anti-clogging technology. The aim of this paper is to study how key structural parameters of automatic flushing valve at the end of ...
ZHAO Xinkai +7 more
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Comparative Analysis of the Drainage Effect Based on Improved Hydraulic Flushing Technology. [PDF]
ACS Omega, 2022 The composite structure coal seam composed of coal seams with strong and weak deformation is widely developed in the coalfields in Southwest and North China. The implementation of hydraulic flushing in soft coal stratification can effectively relieve the pressure and increase the permeability of coal seams, so it can improve the effect of underground ...
Li Y, Zhang X, Liu X, Wang L, Zhang J.
europepmc +3 more sources
FEASIBILITY STUDY OF SEDIMENT FLUSHING FROM MOSUL RESERVOIR, IRAQ
Tikrit Journal of Engineering Sciences, 2015 The Feasibility of sediment flushing from Mosul reservoir located northern iraq was conducted. Many up to date world criteria and indices for checking the efficiency of sediment flushing from reservoir which have been got through analyzing large amount ...
Thair Mahmood Al-Taiee
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Study on the Effect of Hydraulic Flushing on the Stress and Permeability Variations of Loaded Coal. [PDF]
ACS OmegaCoal seams in China are characterized by low permeability, high gas pressure, and soft coal, which lead to challenging gas extraction and severe gas disasters. Hydraulic flushing is widely used in the field to enhance the permeability of coal seams. Considering this fact, studying its effect on the stress and permeability variations of loaded coal is ...
Sun H, Yang H, Guo H, Ma S.
europepmc +4 more sources
Meitian dizhi yu kantanObjectiveGiven the inaccurate and low-efficiency manual statistics of the quantity of coals flushed out during borehole hydraulic flushing, this study proposed an intelligent identification method that combines YOLOv8n, ResNet34, and PP-OCRv4 algorithms.
Xiaojun LI, Mingyang ZHAO, Miao LI
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The method of hydraulic flushing calculation of the reservoir of the "Indian type" hydrosystem [PDF]
E3S Web of Conferences, 2021 One of the main problems in the operation of hydrosystems for various purposes is the silting up of the reservoir. Silting up of a reservoir leads to a decrease in useful capacity. And, of course, the hydrosystem's facility will not be able to fully perform its functions. This issue is particularly relevant for territories located in the arid zone with
Kan Eduard +2 more
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The hydrogeological and geotechnical properties of household waste in relation to sustainable landfilling. [PDF]
, 2000 PhDThis thesis reports an investigation into the hydrogeological and geotechnical properties of household wastes within the context of sustainable landfilling and, particularly, the development of a high rate flushing bioreactor.
Beaven, Richard P
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Biological and hydraulic monitoring of sediment flushing from an alpine reservoir
, 2007 The first results of the biological and hydraulic monitoring programme carried out during the sediment flushing of an Alpine Italian reservoir are presented. The flushing and the monitoring activities were planned and executed by several private and public subjects, including the hydroelectric company in charge of the reservoir management (AEM S.p.A.),
ESPA, PAOLO +4 more
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Meikuang Anquan, 2022 In order to solve the problem of low gas drainage concentration in high-gas and low-permeability coal seams, the influence of various characteristic parameters on the pressure relief effect in the process of hydraulic flushing in low-permeability coal ...
JING Junjie, YU Liya, YAN Jing
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Design and Test of a Riding Pontoon Hydraulic Lotus Root Digging Machine
Agriculture, 2022 In order to solve the problem of high labor intensity of a traditional pontoon lotus root machine with manual pushing operation, a riding pontoon digging lotus root machine was proposed in this paper.
Ming Tu +6 more
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