Results 101 to 110 of about 24,571,438 (253)

Fluoride ion and total dissolved solid distribution in Ethiopian Rift valley: The case of Hawassa city aquifer

open access: yesJournal of Hydrology: Regional Studies, 2018
Study region: The Main Ethiopian Rift valley (MER) region, where millions rely on fluoride contaminated drinking water that is by far higher than the WHO standard resulting skeletal and tooth decay.
Shemsu Gulta Abdurahman, Moltot Zewdie
doaj   +1 more source

Bench-scale centrifuge testing to determine the hydraulic conductivity of chayey soils [PDF]

open access: yes, 2012
The purpose of this research is to validate a mathematical model for flow through saturated and unsaturated porous media using a bench-scale centrifuge for an accurate determination of the hydraulic conductivity (function of the saturation degree of a ...
Bezuijen, Adam   +4 more
core   +1 more source

A variational phase-field model for hydraulic fracturing in porous media

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
Rigorous coupling of fracture–porous medium fluid flow and topologically complex fracture propagation is of great scientific interest in geotechnical and biomechanical applications.
C. Chukwudozie, B. Bourdin, K. Yoshioka
semanticscholar   +1 more source

Flood damage assessment for the Phan-Ca Lo River basin in Vinh Phuc Province, Vietnam

open access: yesJournal of Water and Climate Change
In this research, the authors aim to evaluate the damage caused by floods in Vinh Phuc Province. The study incorporates the construction of hydro-hydraulic models and the development of damage functions for the main elements at risk.
Hung Manh Phan   +2 more
doaj   +1 more source

Estimating Area Leakage in Water Networks Based on Hydraulic Model and Asset Information

open access: yes, 2014
This paper proposes a method of estimating area leakages in virtual areas of a water network to prioritize leak surveys for the areas. It estimates the leakage within the areas by minimizing the difference between the measured and the hydraulic-model ...
Adachi Shingo   +3 more
semanticscholar   +1 more source

The Unsteady, Dynamic Characterization of Hydraulic Systems with Emphasis on Cavitation and Turbomachines [PDF]

open access: yes, 1978
The ability to analyze and model the unsteady, dynamic response of hydraulic systems has arisen from the need for operational stability, flexibility and controlled transient behavior.
Brennen, Christopher
core  

SNAP 8 refractory boiler development program - Shell side hydraulic characteristics of a full scale SNAP 8 multiple tube model boiler Topical report no. 5 [PDF]

open access: yes
Shell side hydraulic characteristics of full-scale SNAP 8 multiple-tube model boiler over turbulent Reynolds number from 18,000 to 38 ...
Fuller, R. A., Hsia, E. S.
core   +1 more source

Hydraulic factors limiting the use of subirrigation in fine textured soils : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Philosophy in Agricultural Engineering at Massey University [PDF]

open access: yes, 1996
Subirrigation is a method of supplying water directly to the plant root zone under the ground surface by means of subsurfce drains which are also used to remove excess water from the root zone. Subsurface drainage systems are used to maintain appropriate
Mahmood, Babar
core  

A mathematical model of an active control landing gear for load control during impact and roll-out [PDF]

open access: yes
A mathematical model of an active control landing gear (ACOLAG) was developed and programmed for operation on a digital computer. The mathematical model includes theoretical subsonic aerodynamics; first-mode wing bending and torsional characteristics ...
Carden, H. D., Mcgehee, J. R.
core   +1 more source

Leveraging Ice, Cloud, and Land Elevation Satellite-2 Laser Altimetry and Surface Water Ocean Topography Radar Altimetry for Error Diagnosis in Hydraulic Models: A Case Study of the Chao Phraya River

open access: yesRemote Sensing
Recent advancements in satellite Earth observation (EO) technology have significantly improved the accuracy and density of data available for monitoring rivers and streams, as well as for diagnosing errors in hydraulic models.
Theerapol Charoensuk   +2 more
doaj   +1 more source

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