scholarly journals Mechanical Orientation of Fine Magnetic Particles in Powders by an External Magnetic Field: Simulation‐Based Optimization

2020 ◽  
Vol 257 (12) ◽  
pp. 2000404
Author(s):  
Sergey Erokhin ◽  
Dmitry Berkov
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Particles ◽  
Magnetic Field Simulation ◽  
Field Simulation ◽  
Simulation Based ◽  
Simulation Based Optimization

Study of the Performance of Practical Magneto-Rheological Elastomers

2012 ◽  
Vol 430-432 ◽  
pp. 1979-1983
Author(s):  
Wei Bang Feng ◽  
Xue Yang ◽  
Zhi Qiang Lv
Keyword(s):  
Magnetic Field ◽  
Mechanical Properties ◽  
Mechanical Property ◽  
Magnetic Properties ◽  
External Magnetic Field ◽  
Magnetic Particles ◽  
Poor Performance ◽  
Electrical And Magnetic Properties ◽  
Intelligent Material ◽  
Magneto Rheological

Magneto-rheological elastomer( MR elastomer) is an emerging intelligent material made up of macromolecule polymer and magnetic particles. While a promising wide application it has in the fields of warships vibration controlling for its controllable mechanical, electrical and magnetic properties by external magnetic field, design and application of devices based on it are facing great limitations imposed by its poor performance in mechanical properties and magneto effect. Aiming at developing a practical MR elastomer, a new confecting method was proposed in this paper. Then, following this new method and using a specificly designed solidifying matrix, an amido- polyester MR elastomer was developed with its mechanical property systemically explored.

Effective Gap Filling via Magnetic Field Simulation Assisted on Longthrow Sputtering PVD of Side Magnet Designs and Arrangements for 3DIC Application

2019 ◽  
Vol 44 (1) ◽  
pp. 857-864
Author(s):  
Tomi T. Li ◽  
H. T. Chen ◽  
J. S. Yeh ◽  
Thomas C. K. Yang ◽  
S. W. Yang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Gap Filling ◽  
Magnetic Field Simulation ◽  
Field Simulation

Alignment of magnetic uniaxial particles in a magnetic field: Simulation

2014 ◽  
Vol 365 ◽  
pp. 64-69 ◽  
Author(s):  
O.A. Golovnia ◽  
A.G Popov ◽  
A.N. Sobolev ◽  
G.C. Hadjipanayis
Keyword(s):  
Magnetic Field ◽  
Magnetic Field Simulation ◽  
Field Simulation

scholarly journals Comparison of magnetic field imaging (MFI) and magnetic field simulation of silicon solar cells

2019 ◽  
Author(s):  
Ulli Zeller ◽  
Dominik Lausch ◽  
Matthias Pander ◽  
Kai Kaufmann ◽  
Sebastian Slaby ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Cells ◽  
Silicon Solar Cells ◽  
Magnetic Field Simulation ◽  
Field Simulation ◽  
Magnetic Field Imaging ◽  
Field Imaging

scholarly journals Biomagnetic Recovery and Bioaccumulation of Selenium Granules in Magnetotactic Bacteria

2016 ◽  
Vol 82 (13) ◽  
pp. 3886-3891 ◽  
Author(s):  
Masayoshi Tanaka ◽  
William Knowles ◽  
Rosemary Brown ◽  
Nicole Hondow ◽  
Atsushi Arakaki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Particles ◽  
Magnetotactic Bacteria ◽  
Selenium Nanoparticles ◽  
Water Remediation ◽  
Polluted Water ◽  
Contaminated Water ◽  
Elemental Selenium ◽  
Cell Recovery

ABSTRACTUsing microorganisms to remove waste and/or neutralize pollutants from contaminated water is attracting much attention due to the environmentally friendly nature of this methodology. However, cell recovery remains a bottleneck and a considerable challenge for the development of this process. Magnetotactic bacteria are a unique group of organisms that can be manipulated by an external magnetic field due to the presence of biogenic magnetite crystals formed within their cells. In this study, we demonstrated an account of accumulation and precipitation of amorphous elemental selenium nanoparticles within magnetotactic bacteria alongside and independent of magnetite crystal biomineralization when grown in a medium containing selenium oxyanion (SeO32−). Quantitative analysis shows that magnetotactic bacteria accumulate the largest amount of target molecules (Se) per cell compared with any other previously reported nonferrous metal/metalloid. For example, 2.4 and 174 times more Se is accumulated than Te taken up into cells and Cd2+adsorbed onto the cell surface, respectively. Crucially, the bacteria with high levels of Se accumulation were successfully recovered with an external magnetic field. The biomagnetic recovery and the effective accumulation of target elements demonstrate the potential for application in bioremediation of polluted water.IMPORTANCEThe development of a technique for effective environmental water remediation is urgently required across the globe. A biological remediation process of waste removal and/or neutralization of pollutant from contaminated water using microorganisms has great potential, but cell recovery remains a bottleneck. Magnetotactic bacteria synthesize magnetic particles within their cells, which can be recovered by a magnetic field. Herein, we report an example of accumulation and precipitation of amorphous elemental selenium nanoparticles within magnetotactic bacteria independent of magnetic particle synthesis. The cells were able to accumulate the largest amount of Se compared to other foreign elements. More importantly, the Se-accumulating bacteria were successfully recovered with an external magnetic field. We believe magnetotactic bacteria confer unique advantages of biomagnetic cell recovery and of Se accumulation, providing a new and effective methodology for bioremediation of polluted water.

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