Results 221 to 230 of about 469,529 (269)

Air infiltration rates in the bedrooms of 202 residences and estimated parametric infiltration rate distribution in Guangzhou, China

Energy and Buildings, 2018
Abstract This study investigates the overnight air infiltration rates of 202 natural ventilated bedrooms, measured in August to September 2016 (cooling season) in Guangzhou, China. The rates were calculated and analyzed based on a single zone mass balance equation, using CO2 produced by the sleeping occupants as tracer gas source.
Pok Lun Cheng, Xiaofeng Li
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Assessing Infiltration Flow-Rates into Sewers

Global Solutions for Urban Drainage, 2002
In the past, evaluation studies would quantify infiltration problems by the means of a single value, which was supposed to be representative of high water table conditions. On some occasions, a second value would be added to account for low water table conditions. It now appears that infiltration into sewers is quite a complex process and displays huge
Claude Joannis, Jean-françois Commaille, Bruno Dupasquier   +2 more
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Estimating Infiltration in Open‐ended Furrow Irrigation by Modifying Final Infiltration Rate

Irrigation and Drainage, 2022
AbstractThe Kostiakov–Lewis equation is one of the commonly used infiltration equations in furrow irrigation. Elliott and Walker developed a two‐point method to estimate coefficients of the Kostiakov–Lewis equation. The basic infiltration rate (fo) in the Kostiakov–Lewis equation is usually calculated by the inflow–outflow method to determine the other
Amir Panahi, Amin Alizadeh‐Dizaj, Hamed Ebrahimian, Amin Seyedzadeh   +3 more
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Infiltration Rates as Affected by Desert Vegetation

Water Resources Research, 1969
Infiltration of water into two soils measured at radial distances from the stems of paloverde (Cercidium microphyllum) and creosote bush (Larrea tndentata) were found to average nearly three times greater under plants than in the openings. Bulk density was lower and organic matter content was higher in topsoil under plants than in the openings.
Forest P. Lyford, Hasan K. Qashu
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Denitrification during infiltration for managed aquifer recharge: Infiltration rate controls and microbial response

Science of The Total Environment, 2020
Managed aquifer recharge (MAR) systems can be designed and operated to improve water supply and quality simultaneously by creating favorable conditions for contaminant removal during infiltration through shallow soils. We present results from laboratory flow-through column experiments, using intact soil cores from two MAR sites, elucidating conditions ...
Galen Gorski, Hannah Dailey, Andrew T. Fisher, Nicole Schrad, Chad Saltikov   +4 more
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A probabilistic investigation of infiltration in the vadose zone: proposal for a new formula of infiltration rate

Hydrological Processes, 2006
AbstractThe infiltration rate in the unsaturated zone is analysed from a probabilistic point of view. It is shown that the empirical formulas of Horton and Kostiakov, without apparent physical basis, are explained in a probabilistic approach. Horton's formula reflects a Markovian process contrary to Kostiakov's formula.
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Determining infiltration rates in an irrigation border

Journal of Geophysical Research, 1960
The relationship between the flow of water in an irrigation border and the infiltration rate of the soil as a function of time has been treated by previous authors, primarily by an analytical approach. A simple graphical construction is proposed whereby the time-infiltration curve can be constructed from data gathered in an irrigation border test under
Herman J. Finkel, Dov Nir
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Changes of steady-state infiltration rates in recurrent ponding infiltration experiments

Journal of Hydrology, 1988
Abstract Ponding infiltration experiments on coarse acid brown soils (Cambisol) are described to show that the steady-state infiltration rate depends on the initial moisture content, which is in contrast with the theory. The effect is observed on three different scales: (1) in the field at randomly chosen places near grid points of a network for two ...
Milena Císlerová, Jiří Šimůnek, Tomáš Vogel   +2 more
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INFILTRATION RATE AS RELATED TO RAINFALL ENERGY

Canadian Journal of Soil Science, 1967
Infiltration rate with respect to rainfall energy was determined on a Sceptre clay, Haverhill loam and Hatton fine sandy loam. The infiltration rate of saturated Sceptre clay dropped from 24.0 to 0.6 cm per hour with an application of 2.0 cm of simulated rain.
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Influence of infiltration pressure on densification rate and microstructure of pyrocarbon during chemical vapor infiltration

New Carbon Materials, 2012
Abstract Carbon/carbon composites were fabricated by chemical vapor infiltration of needled carbon fiber felts (70% porosity) with natural gas as precursor at different infiltration pressures. The thermodynamics of methane pyrolysis and the densification kinetics were used to investigate the influence of infiltration pressure on the infiltration rate
Yun-feng Zhang, Rui-ying Luo
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