Results 21 to 30 of about 1,327,897 (226)

Anomalous Nanoparticle Surface Diffusion in Liquid Cell TEM is Revealed by Deep Learning-Assisted Analysis [PDF]

, 2020
The motion of nanoparticles near surfaces is of fundamental importance in physics, biology, and chemistry. Liquid cell transmission electron microscopy (LCTEM) is a promising technique for studying motion of nanoparticles with high spatial resolution ...
Assaf, Ben Moshe, Vida, Jamali, Amirali, Aghazadeh, Cory, Hargus, Hyun Dong, Ha, Paul, Alivisatos, Kranthi K., Mandadapu   +6 more
core   +1 more source

Measurement instrumentation and selected signal processing techniques for anomalous diffusion analysis

Measurement: Sensors, 2020
Anomalous diffusion phenomena are ubiquitous in many areas, including physics, biology, medicine, climate and also financial markets. The description and analysis of this phenomena are challenging tasks.
Katarzyna Maraj, Dawid Szarek, Grzegorz Sikora, Michał Balcerek, Agnieszka Wyłomańska, Ireneusz Jabłoński   +5 more
doaj   +1 more source

Analysis of PFG Anomalous Diffusion via Real-Space and Phase-Space Approaches

Mathematics, 2018
Pulsed-field gradient (PFG) diffusion experiments can be used to measure anomalous diffusion in many polymer or biological systems. However, it is still complicated to analyze PFG anomalous diffusion, particularly the finite gradient pulse width (FGPW ...
Guoxing Lin
doaj   +1 more source

Water diffusion in q-space imaging as a probe of cell local viscosity and anomalous diffusion in grey and white matter [PDF]

, 2010
Extraction of accurate quantitative parameters to characterize water diffusion in complex porous media like brain tissue in neuroimaging is a challenging inverse problem, that depends on medium\\u27\u27s structural and geometrical factors [1,3].
Aubry, Florent, Pariente, Jérémie, Chollet, François, Saint-Aubert, Laure, Chauveau, Nicolas, Nicolas, Renaud, Franceries, Xavier, Breil, Stephane, Celsis, Pierre   +8 more
core   +1 more source

Anomalous conductance and diffusion in complex networks [PDF]

, 2005
We study transport properties such as conductance and diffusion of complex networks such as scale-free and Erdős-Rényi networks. We consider the equivalent conductance G between two arbitrarily chosen nodes of random scale-free networks with degree ...
López, Eduardo, Havlin, Shlomo, Buldyrev, Sergey V., Stanley, H. Eugene   +3 more
core   +1 more source

A Markov-Chain-Based Method to Characterize Anomalous Diffusion Phenomenon in Unconventional Reservoir

Improved Oil and Gas Recovery, 2018
The recent success in developing unconventional reservoirs has aroused many new challenges to the theory of reservoir engineering. In this paper, we try to investigate the anomalous diffusion phenomenon caused by the heterogeneity due to the fracture ...
ShuaiLiu, HanLi, Peter P.Valkó
doaj   +1 more source

Dynamics of Subordinate Fractional Diffusion Moments on Curved Surfaces at Short Times

Dynamics
Diffusion on curved surfaces deviates from the flat case due to geometrical corrections in the evolution of its moments, such as the geodesic mean square displacement.
Guillermo Chacón-Acosta, Adrian Perez-Rodriguez   +1 more
doaj   +1 more source

Empirical and Theoretical Analysis of Particle Diffusion in Mucus

Frontiers in Physics, 2021
Mucus is a complex fluid that coats multiple organs in animals. Various physicochemical properties can alter the diffusion of microscopic particles in mucus, impacting drug delivery, virus infection, and disease development.
Antonio Cobarrubia, Antonio Cobarrubia, Jarod Tall, Jarod Tall, Jarod Tall, Austin Crispin-Smith, Austin Crispin-Smith, Antoni Luque, Antoni Luque, Antoni Luque   +9 more
doaj   +1 more source

Difusão anômala e equações generalizadas de difusão

Revista Brasileira de Ensino de Física
Neste trabalho apresentamos um conjunto de equações generalizadas de difusão que podem descrever processos difusivos anômalos. Não-linearidade, dependência espacial e temporal nos coeficientes da equação e derivadas fracionárias, bem como uma combinação ...
Isabel Tamara Pedron, Renio dos Santos Mendes   +1 more
doaj   +1 more source

Anomalous transport and diffusion in percolation systems [PDF]

, 2007
Many disordered systems can be modelled by percolation. Applications of this standard model range from amorphous and porous media to composites, branched polymers, gels and complex ionic conductors.
Heitjans, Paul, Kantelhardt, Jan W., Ulrich, Markus, Bunde, Armin, Indris, Sylvio   +4 more
core   +1 more source