Results 31 to 40 of about 391,297 (307)

FULL-SCALE EXPERIMENTAL STUDIES OF THE PROCESS OF INTRODUCING LIVESTOCK EFFLUENTS INTO THE SUCTION PIPELINES OF PUMPING STATIONS FOR FERTILIZING IRRIGATION

open access: yesМелиорация и гидротехника, 2023
Purpose: to determine the possible degree of mixing livestock effluents and water for various hydraulic parameters of elements of installed equipment and pipeline network. Materials and methods. The research was carried out at the pumping station of the
Dmitriy V. Maklakov   +3 more
doaj   +1 more source

Energy parameters of a hybrid counter-rotor hydraulic unit operating on the basis of solar and hydraulic energy [PDF]

open access: yesE3S Web of Conferences, 2023
This article analyzes the prospects for using a combined hybrid solar photovoltaic and hydroelectric device and presents their characteristics and energy parameters. In particular, since the hydroelectric device consists of a counter-rotor hydraulic unit,
Bozarov Oybek   +3 more
doaj   +1 more source

Laboratory Tests Of Waste Mixtures Consisting Recycled Tyre Rubber and Coal-Mining Wastes [PDF]

open access: yes, 2019
The paper presents the results of research on the application of recycled tyre rubber, in the form of rubber dust, in mixtures bound with a hydraulic binder, to improve the physical and mechanical parameters of unburnt coalmining slates.
Ciolczyk, Adrian, Walotek, Konrad
core   +1 more source

Estimation of aquifer lower layer hydraulic conductivity values through base flow hydrograph rising limb analysis [PDF]

open access: yes, 2010
The estimation of catchment-averaged aquifer hydraulic conductivity values is usually performed through a base flow recession analysis. Relationships between the first time derivatives of the base flow and the base flow values themselves, derived for ...
Pauwels, Valentijn, Troch, Peter A
core   +1 more source

New parameters influencing hydraulic runner lifetime

open access: yesIOP Conference Series: Earth and Environmental Science, 2010
Traditionally, hydraulic runner mechanical design is based on calculation of static stresses. Today, validation of hydraulic runner design in terms of reliability requires taking into account the fatigue effect of dynamics loads. A damage tolerant approach based on fracture mechanics is the method chosen by Alstom and Hydro-Quebec to study fatigue ...
M Sabourin   +3 more
openaire   +1 more source

Effects of Microneedle Design Parameters on Hydraulic Resistance [PDF]

open access: yesJournal of Medical Devices, 2011
Microneedles have been an expanding medical technology in recent years due to their ability to penetrate tissue and deliver therapy with minimal invasiveness and patient discomfort. Variations in design have allowed for enhanced fluid delivery, biopsy collection, and the measurement of electric potentials.
R Lyle, Hood   +3 more
openaire   +2 more sources

Soil hydraulic parameters estimated from satellite information through data assimilation [PDF]

open access: yes, 2011
Leaf area index (LAI) and actual evapotranspiration (ETa) from satellite observations were used to estimate simultaneously the soil hydraulic parameters of four soil layers down to 60 cm depth using the combined soil water atmosphere plant and genetic ...
Charoenhirunyingyos, Sujittra   +3 more
core   +2 more sources

Effects of fracture aperture and roughness on hydraulic and mechanical properties of rocks : implication of seismic characterization of fractured reservoirs [PDF]

open access: yes, 2005
Roughness and aperture are two important characteristic parameters controlling fluid flow in natural joints and fractures. It has been demonstrated by many authors that knowledge of roughness does not directly lead to that of aperture, and aperture ...
Liu, Enru
core   +1 more source

Comparative analysis of tracer studies in the determination of longitudinal dispersion coefficient

open access: yesWater Science and Technology
The research presented in this paper is to determine the best tracer studies that will give acceptable estimates of longitudinal dispersion coefficient for Orashi river using rhodamine WT dye and sodium chloride as water tracer.
Chinedu Ukpaka   +1 more
doaj   +1 more source

Influence of Hydraulic PTO Parameters on Power Capture and Motion Response of a Floating Wind-Wave Hybrid System

open access: yesJournal of Marine Science and Engineering, 2022
Hybrid systems that integrate wave energy converters (WECs) with floating offshore wind turbines (FOWTs) are considered to be key equipment to deeply exploit marine renewable energy. The power take-off (PTO) system is an important component of the hybrid
Yuanzhi Wang   +3 more
doaj   +1 more source

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