Results 171 to 180 of about 12,025 (213)

Evaluation of air permeability in layered unsaturated materials

Journal of Contaminant Hydrology, 2007
Field estimation of air permeability is important in the design and operation of soil-vapor extraction systems. Previous models have examined airflow in homogenous soils, incorporating leakage through a low-permeability cap either as a correction to the airflow equation or as a boundary condition. The dual leakage model solution developed here improves
Christine, Switzer, David S, Kosson
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Decoupling the air sensitivity of Na-layered oxides

Science
Air sensitivity remains a substantial barrier to the commercialization of sodium (Na)–layered oxides (NLOs). This problem has puzzled the community for decades because of the complexity of interactions between air components and their impact on both bulk and surfaces of NLOs.
Yang Yang, Zaifa Wang, Congcong Du, Bowen Wang, Xinyan Li, Siyuan Wu, Xiaowei Li, Xiao Zhang, Xubin Wang, Yaoshen Niu, Feixiang Ding, Xiaohui Rong, Yaxiang Lu, Nian Zhang, Juping Xu, Ruijuan Xiao, Qinghua Zhang, Xuefeng Wang, Wen Yin, Junmei Zhao, Liquan Chen, Jianyu Huang, Yong-Sheng Hu   +22 more
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Is Single Layer MoS ₂ Stable in the Air?

Chemistry – A European Journal, 2017
Abstract Molybdenum disulfide (MoS 2 ) is extensively studied because of its potential applications in catalysis, electronic and optoelectronic devices, and composite nanostructures. However, a recent experimental study indicated that, contrary to current beliefs, MoS
Jana Martincová, Michal Otyepka, Petr Lazar   +2 more
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On the scaling of air layer drag reduction

Journal of Fluid Mechanics, 2013
AbstractAir-induced drag reduction was investigated on a 12.9 m long flat plate test model at a free stream speed of$6. 3~\mathrm{m} ~{\mathrm{s} }^{- 1} $. Measurements of the local skin friction, phase velocity profiles (liquid and gas) and void fraction profiles were acquired at downstream distances to 11.5 m, which yielded downstream-distance-based
Elbing, Brian R., Mäkiharju, Simo, Wiggins, Andrew, Perlin, Marc, Dowling, David R., Ceccio, Steven L.   +5 more
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Air pollution in a convective boundary layer

Atmospheric Environment (1967), 1986
Abstract Detailed profiles of the concentration and the concentration flux for pollutants released continuously from a point source near the ground are presented. Although there are no observational data of the concentration flux and the covariance of temperature and concentration, the distributions of concentration and eddy diffusivity derived from ...
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air layering, n.

2023
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Influence of rooting media and time of air layering on the rooting in air layers of pomegranate (Punica granatum)

Research on Crops, 2021
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Environmental Medical Epigenetics: A Review of Epigenetically Induced Medical Risks Generated From Exposures in Our Air, Food, and Personal Products

Medical Epigenetics, 2021
Rachel L Miller
exaly  

Multi-Layered Air Waveguide Antenna with Layer-to-Layer Connections

2022
BRANDENBURG SCOTT D, ZIMMERMAN DAVID WAYNE, HUDSON MARK WILLIAM   +2 more
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The air-sea wind boundary layer

2016
The drag coefficient is one of the most important quantities used in modeling air-sea interaction. Most studies suggest this coefficient is a function of mean wind speed. There is, however, a considerable degree of scatter associated with such dependences. This means that the accuracy of predictions using the sea-surface drag parameter is limited.
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