Results 21 to 30 of about 10,180,203 (304)

Dynamical law of the phase interface motion in the presence of crystals nucleation

Scientific Reports, 2022
In this paper, we develop a theory of solid/liquid phase interface motion into an undercooled melt in the presence of nucleation and growth of crystals. A set of integrodifferential kinetic, heat and mass transfer equations is analytically solved in the ...
Liubov V. Toropova, Dmitri V. Alexandrov
doaj   +1 more source

Nucleation and Growth of an Ensemble of Crystals during the Intermediate Stage of a Phase Transition in Metastable Liquids

Crystals, 2022
In this paper, an analytical method of solving the integro-differential system of kinetic and balance equations describing the evolution of an ensemble of crystals during the intermediate phase of the bulk crystallization process is described. The theory
Liubov V. Toropova, Eugenya V. Makoveeva, Sergei I. Osipov, Alexey P. Malygin, Yang Yang, Dmitri V. Alexandrov   +5 more
doaj   +1 more source

A Stable Mode of Dendritic Growth in Cases of Conductive and Convective Heat and Mass Transfer

Crystals, 2022
In this paper, we develop a theory of stable dendritic growth in undercooled melts in the presence of conductive and convective heat and mass transfer boundary conditions at the solid/liquid interface of a dendrite.
Liubov V. Toropova, Peter K. Galenko, Dmitri V. Alexandrov   +2 more
doaj   +1 more source

Multi-scale models of lung fibrosis

Matrix Biology, 2020
The architectural complexity of the lung is crucial to its ability to function as an organ of gas exchange; the branching tree structure of the airways transforms the tracheal cross-section of only a few square centimeters to a blood-gas barrier with a surface area of tens of square meters and a thickness on the order of a micron or less.
Julie Leonard-Duke, Stephanie Evans, Riley T. Hannan, Thomas H. Barker, Jason H.T. Bates, Catherine A. Bonham, Bethany B. Moore, Denise E. Kirschner, Shayn M. Peirce   +8 more
openaire   +3 more sources

Multi-scale modelling of granular avalanches [PDF]

AIP Conference Proceedings, 2013
Avalanches, debris flows, and landslides are geophysical hazards, which involve rapid mass movement of granular solids, water and air as a single-phase system. The dynamics of a granular flow involve at least three distinct scales: the micro-scale, meso-scale, and the macro-scale. This study aims to understand the ability of continuum models to capture
Kumar, Krishna, Soga, Kenichi, Delenne, Jean-Yves   +2 more
openaire   +3 more sources

Mathematical Modeling of the Solid–Liquid Interface Propagation by the Boundary Integral Method with Nonlinear Liquidus Equation and Atomic Kinetics

Crystals, 2022
In this paper, we derive the boundary integral equation (BIE), a single integrodifferential equation governing the evolutionary behavior of the interface function, paying special attention to the nonlinear liquidus equation and atomic kinetics.
Ekaterina A. Titova, Dmitri V. Alexandrov, Liubov V. Toropova   +2 more
doaj   +1 more source

Multi-scale modelling in computational biomedicine [PDF]

Briefings in Bioinformatics, 2009
The inherent complexity of biomedical systems is well recognized; they are multi-scale, multi-science systems, bridging a wide range of temporal and spatial scales. This article reviews the currently emerging field of multi-scale modelling in computational biomedicine. Many exciting multi-scale models exist or are under development.
Sloot, P.M.A., Hoekstra, A.G.
openaire   +6 more sources

Multi-scale modeling of gas-fluidized beds [PDF]

, 2006
Numerical models of gas-fluidized beds have become an important tool in the design and scale up of gas-solid chemical reactors. However, a single numerical model which includes the solid-solid and solid-fluid interaction in full detail is not feasible ...
Hoef, van der, M.A., van der Hoef, Martin Anton, Ye, M., Andrews IV, A.T., van der Hoef, M.A., S. Sundaresan, Sint Annaland, M Martin van, Sundaresan, S, Kuipers, J.A.M., van Sint Annaland, M., M. van Sint Annaland, Kuipers, J.A.M.; id_orcid, Ye, M Mao, Kuipers, JAM Hans, Andrews, A.T., A.T. Andrews, M. Ye, Sint Annaland, van, M., M.A. van der Hoef, Hoef, MA Martin van der, Andrews, AT, Sundaresan, S., J.A.M. Kuipers   +22 more
core   +1 more source

Dynamics of intracellular clusters of nanoparticles

Cancer Nanotechnology, 2022
Background Nanoparticles play a crucial role in nanodiagnostics, radiation therapy of cancer, and they are now widely used to effectively deliver drugs to specific sites, targeting whole organs and down to single cells, in a controlled manner ...
Dmitri V. Alexandrov, Nickolay Korabel, Frederick Currell, Sergei Fedotov   +3 more
doaj   +1 more source

On the Theory of Unsteady-State Operation of Bulk Continuous Crystallization

Crystals, 2022
Motivated by an important application in the chemical and pharmaceutical industries, we consider the non-stationary growth of a polydisperse ensemble of crystals in a continuous crystallizer.
Eugenya V. Makoveeva, Dmitri V. Alexandrov, Alexander A. Ivanov   +2 more
doaj   +1 more source