scholarly journals Anomalous transport phenomenon of a charged Brownian particle under a thermal gradient and a magnetic field

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Hiromichi Matsuyama ◽  
Kunimasa Miyazaki
Keyword(s):  
Magnetic Field ◽  
Transport Phenomenon ◽  
Thermal Gradient ◽  
Brownian Particle ◽  
Anomalous Transport

SUPERFLOW-INDUCED SPLITTING OF SQUASHING MODE IN 3He–B

1991 ◽  
Vol 05 (20) ◽  
pp. 1333-1338
Author(s):  
ZUYU ZHAO
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Acoustic Impedance ◽  
Thermal Gradient ◽  
Magnetic Field Dependence ◽  
Mode Spectrum ◽  
Impedance Technique

Superflow-induced splitting in the Squashing Mode spectrum of superfluid 3 He – B , predicted about one decade ago, has been observed recently with the single-ended, frequency-modulated, cw-acoustic-impedance technique. The temperature, thermal gradient and magnetic field dependence have been studied.

scholarly journals Single-cell motion of magnetotactic bacteria in microfluidic confinement: interplay between surface interaction and magnetic torque

2021 ◽  
Author(s):  
Agnese Codutti ◽  
Mohammad A. Charsooghi ◽  
Elisa Cerdá-Doñate ◽  
Hubert M. Taïeb ◽  
Tom Robinson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Single Cell ◽  
Cell Tracking ◽  
Brownian Particle ◽  
Single Cells ◽  
Natural Habitat ◽  
Magnetotactic Bacteria ◽  
Particle Model ◽  
Complex Environments ◽  
Magnetic Torque

AbstractSwimming microorganisms often experience complex environments in their natural habitat. The same is true for microswimmers in envisioned biomedical applications. The simple aqueous conditions typically studied in the lab differ strongly from those found in these environments and often exclude the effects of small volume confinement or the influence that external fields have on their motion. In this work, we investigate magnetically steerable microswimmers, specifically magnetotactic bacteria, in strong spatial confinement and under the influence of an external magnetic field. We trap single cells in micrometer-sized microfluidic chambers and track and analyze their motion, which shows a variety of different trajectories, depending on the chamber size and the strength of the magnetic field. Combining these experimental observations with simulations using a variant of an active Brownian particle model, we explain the variety of trajectories by the interplay between the wall interactions and the magnetic torque. We also analyze the pronounced cell-to-cell heterogeneity, which makes single-cell tracking essential for an understanding of the motility patterns. In this way, our work establishes a basis for the analysis and prediction of microswimmer motility in more complex environments.

Anomalous transport effects on magnetic field profile in a motional current sheath

2001 ◽  
Author(s):  
M. E. Kayama ◽  
E. A. Aramaki ◽  
R. P. Mota ◽  
M. A. Algatti ◽  
R. Y. Honda
Keyword(s):  
Magnetic Field ◽  
Anomalous Transport ◽  
Field Profile ◽  
Current Sheath ◽  
Magnetic Field Profile ◽  
Transport Effects

Studying the finiteness of the first meeting time between Lévy flight jump and Brownian particles in the fluid reactive anomalous transport

2019 ◽  
Vol 33 (22) ◽  
pp. 1950256 ◽  
Author(s):  
Mohamed Abd Allah El-Hadidy
Keyword(s):  
Probability Theory ◽  
Waiting Time ◽  
Gaussian Distribution ◽  
Analytical Study ◽  
Brownian Particle ◽  
Anomalous Transport ◽  
Lévy Flight ◽  
Levy Flight ◽  
Brownian Particles ◽  
Linear Flows

We consider linear flows of a Lévy flight jump particle that moves randomly in the fluid reactive anomalous transport with random waiting time depending on the Gaussian distribution. The particle aims to meet another Brownian particle in this fluid. From the viewpoint of a probability theory, we present a theoretical and analytical study that gives conditions which make the expected value of the first meeting time between the two particles finite.

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