15 papers · ranked by Valyu relevance
Robert K. Niven, Jean-Noël Jaubert
Since the time of Buckingham in 1914, dimensional analysis and similarity arguments based on dimensionless groups have served as powerful tools for the analysis of systems in all branches of science and engineering. Dimensionless groups are generally classified into those arising from geometric similarity, based on…
Filipp V. Lavrentev, Vladimir V. Shilovskikh, Varvara S. Alabusheva, Veronika Yu. Yurova + 6 more
Diffusion is one of the key nature processes which plays an important role in respiration, digestion, and nutrient transport in cells. In this regard, the present article aims to review various diffusion approaches used to fabricate different functional materials based on hydrogels, unique examples of materials that…
Melissa Tomkins, Aoife Hughes, Richard J Morris
Transport across membranes is critical for plant survival. Membranes are the interfaces at which plants interact with their environment. The transmission of energy and molecules into cells provides plants with the source material and power to grow, develop, defend, and move. An appreciation of the physical forces that…
Derik W. Gryczak, Ervin K. Lenzi, Michely P. Rosseto, Luiz R. Evangelista + 2 more
'Luiz R. Evangelista' 'Rafael S. Zola' 'José F. F. Mendes'] The interplay of diffusion with phenomena like stochastic adsorption-desorption, absorption, and reaction-diffusion is essential for life and manifests in diverse natural contexts. Many factors must be considered, including geometry, dimensionality, and the…
Licun Sun, Xiaoyun Pu
A visualization and quantification optical method for measuring binary liquid diffusion coefficient (D) based on an asymmetric liquid-core cylindrical lens (ALCL) is introduced in this paper. Four groups of control experiments were performed to verify the influences of diffusing substance category, concentration and…
Tadeusz Kosztołowicz, Aldona Dutkiewicz, Katarzyna D. Lewandowska
Normal and anomalous diffusion processes are characterized by the time evolution of the mean square displacement of a diffusing molecule $σ2(t)$. When $σ2(t)$ is a power function of time, the process is described by a fractional subdiffusion, fractional superdiffusion or normal diffusion equation. However, for other…
Katarzyna Bizon, Dominika Boroń, Bolesław Tabiś, Sébastien Déon + 1 more
'Kang Xiao'] The study addresses one of the fundamental issues in the mathematical modeling and quantitative process analysis of complex multicomponent diffusion in meso- and microporous materials. The model presented here incorporates combined molecular diffusion, Knudsen diffusion, viscous flow, and surface…
Paul E. Schavemaker, Arnold J. Boersma, Bert Poolman
That diffusion is important for the proper functioning of cells is without question. The extent to which the diffusion coefficient is important is explored here for prokaryotic cells. We discuss the principles of diffusion focusing on diffusion-limited reactions, summarize the known values for diffusion coefficients in…
Nathann Teixeira Rodrigues, Fábio David Alves Aarão Reis
of Diffusing Tracers, Apparent Tortuosity, and Application to Mesoporous Silica Authors: ['Nathann Teixeira Rodrigues' 'Fábio David Alves Aarão Reis'] The apparent tortuosity due to adsorption of diffusing tracers in a porous material is determined by a scaling approach and is used to analyze recent data on LiCl and…
Denis Andzheevich Sapegin, Aleksei Viktorovich Chekmachev, Julio López Rodríguez, Marc Fernández de Labastida Ventura + 1 more
'Julio López Rodríguez' 'Marc Fernández de Labastida Ventura' 'Andrea Cipollina'] PyVaporation-a freely available Python package with an open-source code for modelling and studying pervaporation processes-is introduced. The theoretical background of the solution, its applicability and limitations are discussed. The…
Sadegh Ahmadpour, Raoof Gholami, Mojtaba Ghaedi, Martin J. Blunt
The transition to a hydrogen-based energy system requires safe and efficient large-scale storage solutions. Underground hydrogen storage (UHS) has emerged as a promising candidate, but the effectiveness and long-term security of UHS depend on a fundamental understanding of hydrogen transport mechanisms in subsurface…
R. J. Seager, Andrew J. Acevedo, Fabian Spill, Muhammad H. Zaman
The processes of dissolution and fragmentation have high relevance in pharmaceutical research, medicine, digestive physiology, and engineering design. Experimentally, dissolution and fragmentation are observed to occur simultaneously, yet little is known about the relative importance of each of these processes and…
Yuliang Zou, Benjamin Maillet, Laurent Brochard, Philippe Coussot + 1 more
'Alberto Guadagnini'] Title: Abstract Natural textiles, hair, paper, wool, or bio-based walls possess the remarkable ability to store humidity from sweat or the environment through “bound water” absorption within nanopores, constituting up to 30% of their dry mass. The knowledge of the induced water transfers is…
Z. C. Zhao, R. J. Moat, R. S. Qin
A mesoscopic simulation method based on the integration of dissipative particle dynamics (DPD), smoothed particle hydrodynamics (SPH) and computational thermodynamics (CT) has been developed. The kinetic behaviours of miscible and immiscible fluids were investigated. The interaction force between multicomponent…
Sihui Chen, Zhou Qin, Tianxing Wang, Junjun Zhang + 4 more
Mass transfer is central to food processing but remains difficult to quantify because food materials are heterogeneous, multiphase, porous, biologically structured, and dynamically changing. Under these conditions, experiments alone cannot fully capture the spatiotemporal complexity of transport behavior, making…