In this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. Also, their treatments in the ventilated cavity geometry are assessed numerically. The magnetite nanoparticles are produced by a chemical combination of Fe2+ and Fe3+ with NH3. In order to solve the nanoparticles in the new mediums, a...

We consider the single particle relaxation rate of 2D electrons subject to a random magnetic field. The density of states (DOS) oscillations in a uniform magnetic field (in addition to a random one) are studied. It is shown that the infrared singularities appearing in perturbation theory for the single particle relaxation rate are spurious and can be regularized by a proper choice of gauge. We ...

*Correspondence: Seung-Bok Choi , Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, South Korea e-mail: [email protected] This study is concerned with an investigation of the plate-like iron particles based MR suspensions under the application of magnetic fields to ascertain the influence of particle size in the rheological perfor...

We study the first-order Fermi acceleration process at parallel shock waves by means of Monte Carlo simulations. A ’realistic’ model of the magnetic field turbulence is applied involving sinusoidal waves imposed on the background mean field parallel to the shock normal. The finite-amplitude magnetic field perturbations lead to locally oblique field configurations at the shock and the respective...