Results 21 to 30 of about 836,304 (292)

Heat diffusion in the disordered electron gas [PDF]

, 2015
We study the thermal conductivity of the disordered two-dimensional electron gas. To this end we analyze the heat density-heat density correlation function concentrating on the scattering processes induced by the Coulomb interaction in the sub ...
Finkel'stein, A. M., Schwiete, G.
core   +3 more sources

Highly Sensitive Photoacoustic Microcavity Gas Sensor for Leak Detection

Sensors, 2020
A highly sensitive photoacoustic (PA) microcavity gas sensor for leak detection is proposed. The miniature and low-cost gas sensor mainly consisted of a micro-electro-mechanical system (MEMS) microphone and a stainless-steel capillary with two small ...
Ke Chen, Yewei Chen, Bo Zhang, Liang Mei, Min Guo, Hong Deng, Shuai Liu, Fengxiang Ma, Zhenfeng Gong, Qingxu Yu   +9 more
doaj   +1 more source

Investigation of the Shadow Effect in Focused Ion Beam Induced Deposition

Nanomaterials, 2022
Due to the precursor gas flow in the focused ion beam induced deposition process, a shadow effect appears behind the shading structures. This article carries out experiments with phenanthrene as the precursor gas and establishes a numerical model to ...
Chen Fang, Yan Xing
doaj   +1 more source

Analytical modelling of stable isotope fractionation of volatile organic compounds in the unsaturated zone [PDF]

, 2011
Analytical models were developed that simulate stable isotope ratios of volatile organic compounds (VOCs) near a point source contamination in the unsaturated zone. The models describe diffusive transport of VOCs, biodegradation and source ageing.
Abriola, Baehr, Bouchard, Bouchard, Bouchard, Bouchard, Broholm, Cerling, Christophersen, Clark, Conant, Craig, Daniel Bouchard, Daniel Hunkeler, Davis, Davis, Elsner, Fabien Cornaton, Falta, Franzmann, Gaganis, Grathwohl, Harrington, Hers, Hoff, Hohener, Hohener, Hunkeler, Hunkeler, Jin, Jost, Jury, Karapanagioti, Kiss, Kuder, Lahvis, Meckenstock, Millington, Moldrup, Ostendorf, Parker, Pasteris, Patrick Höhener, Schmidt, Schwarzenbach, Schüth, Sherwood Lollar, Slater, Smith, Van de Steene, Wang, Werner, Werner   +52 more
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Permeation of CO₂ and N₂ through glassy poly(dimethyl phenylene) oxide under steady- and presteady-state conditions [PDF]

, 2020
Glassy polymers are often used for gas separations because of their high selectivity. Although the dual‐mode permeation model correctly fits their sorption and permeation isotherms, its physical interpretation is disputed, and it does not describe ...
Brooks, Daniel J., Goddard, William A., III, Houle, Frances A., Humphrey, Nicholas D., Mafi, Amirhossein, Merinov, Boris, Soniat, Marielle, Tesfaye, Meron, Weber, Adam Z., Weng, Lien‐Chun   +9 more
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FLATTENING OF A SCRATCH ON SINGLE CRYSTAL ICE SURFACE

Anales (Asociación Física Argentina), 2020
The surface of a monocrystalline ice sample was observed at−5◦C (268 K). For which it was superficially polished and allowed to evolve in the presence of activated silica gel for three hours.
G. Aguirre Varela, D. Stoler Flores, P. I. Achával, C. L. Di Prinzio   +3 more
doaj   +1 more source

Electrochemical Impedance Spectroscopy to Evaluate the Effect of Pressure Exerted in the Hot-Pressing Stage on the Performance of PEMFC

International Journal of Electrochemical Science, 2012
Hot-pressing is one of the most important stages in fabrication of the membrane electrode assembly in a single cell of proton exchange membrane fuel cells (PEMFCs).
Fu-Pin Ting, Jing-Chie Lin, Chien-Ming Lai, San-Der Chyou, Kan-Lin Hsueh   +4 more
doaj   +1 more source

The Establishment of Computational Model and Analysis of Elastomer Failure Induced by Rapid Gas Decompression

Shiyou jixie, 2020
When the ambient is rapidly decompressed, the gas dissolved in the rubber cannot be released quickly and expand, causing the rubber to bulge or even rupture, resulting in seal failure.
Chen Mingzhan, Wang Suling, Jiang Minzheng, Li Jinbo   +3 more
doaj  

About Gas Permeability and Diffusion through Concrete

Materials Proceedings, 2023
Gas production is expected in radioactive-waste storage structures. This will induce a slow increase in gas pressure, which necessitates the study of gas transfer at a low pressure. In this special case, calculations of the flow through storing materials
Takwa Lamouchi, Severine Levasseur, Ludovic Potier, Thierry Dubois, Frédéric Skoczylas   +4 more
doaj   +1 more source

The effects of water and microstructure on the performance of polymer electrolyte fuel cells [PDF]

, 2006
n this paper, we present a comprehensive non-isothermal, one-dimensional model of the cathode side of a Polymer Electrolyte Fuel Cell. We explicitly include the catalyst layer, gas diffusion layer and the membrane.
A. Young, A.A. Shah, Aris, Berg, Bird, Broka, Cao, Carnes, Eikerling, Eikerling, G.-S. Kim, Ge, Guo, Guo, He, Hinatsu, Hsuen, J. Li, Jaouen, Ju, K. Promislow, Lampinen, Lin, Lister, Liu, Mathias, Mazumder, Mazumder, Mazumder, Middelman, Mizuhata, Motupally, Nam, Natarajan, Ogumi, Pasaogullari, Perry, S. Ye, Siegel, Siegel, Song, Springer, Sukkee Um, Sun, Thapman, Uchida, Uchida, Van Nguyen, W. Gervais, Wang, Wang, Wang, Wang, Weber, Weber, Weng, Weng, Williams, Yang, Yin   +59 more
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