Results 11 to 20 of about 7,555,861 (292)
Water Effective Diffusion Coefficient in Dairy Powder Calculated by Digital Image Processing and through Machine Learning Algorithms of CLSM Micrographs [PDF]
Foods, 2023 Rehydration of dairy powders is a complex and essential process. A relatively new quantitative mechanism for monitoring powders’ rehydration process uses the effective diffusion coefficient.
Valentyn A. Maidannyk +3 more
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Theoretical analysis of the effect of isotropy on the effective diffusion coefficient in the porous and agglomerated phase of the electrodes of a PEMFC [PDF]
Scientific ReportsIn polymer membrane fuel cells (PEMFC), the pore microstructure and the effective diffusion coefficient ( $$D_{eff}$$ D eff ) of the catalytic layer have a significant impact on the overall performance of the fuel cell. In this work, numerical methods to
C. Pacheco +3 more
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Mathematical Model for Effective Gas Diffusion Coefficient in Multi-scale Fractal Porous Media [PDF]
E3S Web of Conferences, 2021 Based on the capillary hypothesis and fractal theory, a mathematical model for calculating the effective gas diffusion coefficient in porous media is established. By using fractal geometry theory, pore area fractal dimension, tortuosity fractal dimension
Zhehua Du
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The Effective Diffusion Coefficient for Porous Rubble [PDF]
, 1990 Each waste package in the proposed Yucca Mountain repository is to be separated from surrounded unsaturated rock by a 2-cm air gap annulus. However, if the annulus becomes filled with rock and rubble, there can exist pathways for diffusive release of radionuclides through pore liquid, even if the repository remains unsaturated.
Sadeghi, M.M. +3 more
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Self-diffusion and viscosity coefficient of fluids in nanochannels [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Belkin, AA +4 more
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Acta Scientiarum. Agronomy, 2021 Muntingia calabura fruits are rich in bioactive compounds such as antioxidants, and the consumption of these compounds is associated with cancer prevention and aging.
Luciana Alves da Silva Tavone +5 more
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Frontiers in Materials, 2022 In this work, we propose an efficient numerical method to study the effects of microstructures on the effective diffusion coefficient of the diffusion component in materials. We take the diffusion of hydrogen (H) atoms in porous polycrystalline tungsten (
Bingchen Li +13 more
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Effective diffusion coefficient including the Marangoni effect [PDF]
The Journal of Chemical Physics, 2018 Surface-active molecules supplied from a particle fixed at the water surface create a spatial gradient of the molecule concentration, resulting in Marangoni convection. Convective flow transports the molecules far from the particle, enhancing diffusion.
Hiroyuki Kitahata, Natsuhiko Yoshinaga
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Experimental study on diffusion of chloride ions in unsaturated soils
Yantu gongcheng xuebao, 2021 Advection and diffusion are the mechanisms involved in contaminant transport in soils. The diffusion will be the dominant process when seepage velocity is low.
JI Yong-xin 1, ZHANG Wen-jie 2
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Chemical Engineering Journal Advances, 2023 Accurate measurement of the gas diffusivity in a gas diffusion layer (GDL) for polymer electrolyte fuel cells (PEFCs) is extremely important in order to improve the performance of PEFCs and design fuel cell stacks.
Masahide Inagaki +2 more
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