Results 31 to 40 of about 13,688,735 (296)
Gas Diffusion Method Using Methane as Processing Gas
Journal of IsotopesThis study is based on gas diffusion method，using methane as processing gas to explore the production technology route of high abundance carbon-13 isotopes.
Fei WANG +3 more
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Mathematical modeling and visualization of gas transport in a zeolite bed using a slice selection procedure [PDF]
, 2007 We present the analytical solution of the equations of gas diffusion in a heterogeneous zeolite bed. The problem is handled by assuming that the bed consists of a large number of very thin layers of solid, perpendicular to the direction of propagation of
Leclerc, Sebastien +3 more
core +1 more source
Research on Production of 15N Isotope with N2 by Gas Diffusion Method
Yuanzineng kexue jishuThere are two natural stable isotopes of nitrogen, 14N and 15N, with isotopic abundances of 99.636% and 0.364%. 15N is widely used in research and analysis in atmospheric tracing, agricultural and forestry research, and origin tracing.
HAN Yilun, ZHOU Mingsheng, WANG Fei
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Molecular Simulation of Coal Molecular Diffusion Properties in Chicheng Coal Mine
Molecules, 2023 In order to study the importance of the diffusion mechanism of CH4 and CO2 in coal for the development of coalbed methane, the aim of this paper is to reveal the influence mechanism of pressure, temperature, water content and other factors on the ...
Jingxue Yan +3 more
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Energies, 2020 The diffusion–adsorption behavior of methane in coal is an important factor that both affecting the decay rate of gas production and the total gas production capacity.
Zhigao Peng +4 more
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Measurement of gas diffusion through soils: comparison of laboratory methods [PDF]
Journal of Environmental Monitoring, 2008 Gas movement through soils is important for ecosystems and engineering in many ways such as for microbial and plant respiration, passive methane oxidation in landfill covers and oxidation of mine residues. Diffusion is one of the most important gas movement processes and the determination of the diffusion coefficient is a crucial step in any study ...
Suzanne E, Allaire +3 more
openaire +3 more sources
A Simple Method for the Determination of Resistance to Gas Diffusion in Plant Organs [PDF]
Plant Physiology, 1982 A simple method was developed for the determination of resistance coefficients for ethylene diffusion in plant tissues based on the kinetic analysis of the efflux of preloaded ethane gas. Efflux curves were analyzed to obtain first-order rate constants and resistance coefficients. Resistance coefficients determined by the ethane efflux and steady-state
A C, Cameron, S F, Yang
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Gas transport in aluminosilicate nanotubes by diffusion NMR [PDF]
, 2011 Diffusion of tetrafluoromethane in aluminosilicate nanotubes was studied by means of 13C pulsed field gradient (PFG) NMR at 297 K. The measured data allow the estimation of the diffusivity of tetrafluoromethane inside the nanotubes as well as the ...
Bowers, Clifford R. +6 more
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FEBS Open Bio, EarlyView.UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová +2 more
wiley +1 more source
Meitan xuebaoThe surface diffusion behavior of coal-adsorbed gas is difficult to measure and quantitatively characterize, which has always been a problem or difficulty in the study of the migration law of coalbed methane (coal mine gas).
Shiqiang CHEN +6 more
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