نتایج جستجو برای: magnetic nano particle

تعداد نتایج: 547752  

Journal: :iranian journal of pharmaceutical sciences 0
mortaza mozaffari physics department, isfahan university, isfahan, iran nanophysics research group, center for nanosciences and nanotechnology research, isfahan university, isfahan, iran behshid behdadfar physics department, isfahan university, isfahan, iran jamshid amighian physics department, isfahan university, isfahan, iran nanophysics research group, center for nanosciences and nanotechnology research, isfahan university, isfahan, iran

in this work, mn ferrite nanopowders were prepared by co-precipitation method and were characterized. phase identification of the nanopowders was performed by x-ray diffraction method and the mean particle size of the nanopowders was calculated by scherrer's formula, using necessary corrections. magnetic parameters of the prepared nanopowders were measured by a vibrating sample magnetomete...

Journal: :transport phenomena in nano and micro scales 2016
n. kishan c. kalyani m. chenna krishna reddy

the problem of steady magnetohydrodynamic boundary layer flow of an electrically conducting nanofluid due to an exponentially permeable stretching sheet with heat source/sink in presence of thermal radiation is numerically investigated. the effect of transverse brownian motion and thermophoresis on heat transfer and nano particle volume fraction considered. the governing partial differential eq...

Abstract There are various methods to produce iron based nano crystalline magnetic alloys. Among these methods, mechanical alloying is one of the most important. In this research, nano crystalline Fe85Si10Ni5 soft magnetic alloy was synthesized by mechanical alloying. The effect of alloying time on phase constituents and magnetic properties of the produced powders was investigated, by X-ray di...

2008
S. Ghosh T. Cai S. GhoshMitra A. Neogi Z. Hu N. Mills

A novel magneto-active gel based nanomaterial system is presented to provide precise control of temperature to a localized area in response to externally controlled magnetic stimuli. Integration of ferromagnetic nanoparticles (Fe3O4) in the polyethylene glycol (PEG) based thermo-responsive polymer provides the swelling and de-swelling behavior of magnetic stimuli controlled system by generating...

2013
Marco Vacca Stefano Frache Mariagrazia Graziano L. Di Crescenzo Fabrizio Cairo Maurizio Zamboni

The analysis of effective expectations on emerging nanotechnologies, like Nano-magnetic Logic, is currently a difficult task. The lack of tools that enable the design at logic and physical level of nano-circuits does not allow to inspect properties that can be derived only considering circuits of reasonable complexity. We present results of an unprecedented Place & Route engine for Nano-magneti...

Journal: :علوم و تکنولوژی پلیمر 0
عطیه آب خضر محمد عطایی علی اصغر بهنام قادر لاله صلحی تورج عبادزاده

the incorporation of boehmite nano-particles and its effects on the mechanical properties and bond strength of an experimental dental adhesive were studied.an adhesive solution containing ethanol, bis-gma, tmptma, hema and photo-initiator system (camphorquinone and dmaema) was prepared. silanized boehmite nano-particles were incorporated into the adhesive in different concentrations of 0, 0.2, ...

2016
James J Faust Kyle Doudrick Yu Yang David G Capco Paul Westerhoff

Recent studies indicate the presence of nano-scale titanium dioxide (TiO2) as an additive in human foodstuffs, but a practical protocol to isolate and separate nano-fractions from soluble foodstuffs as a source of material remains elusive. As such, we developed a method for separating the nano and submicron fractions found in commercial-grade TiO2 (E171) and E171 extracted from soluble foodstuf...

Free vibration of a simply-supported magneto-electro-elastic doubly-curved nano-shell is studied based on the first-order shear deformation theory in the presence of the rotary inertia effect. To model the electric and magnetic behaviors of the nano-shell, Gauss’s laws for electrostatics and magneto statics are used. By using Navier’s method, the partial differential equations of motion are red...

2017
JOHAN ÅKERMAN

Magnetodynamical solitons are highly non-linear particle-like textures that derive their stability from an intrinsically dynamical state of their constituent spins. Although magnetodynamical solitons such as spin wave (SW) bullets can be sustained in ultra-low insulating magnetic films, such as YIG, using parametric pumping by external microwave fields [1], the advent of spin transfer torque va...

ژورنال: طلوع بهداشت یزد 2014
احرام پوش, محمد حسن, سلمانی, محمد حسین, عابدی, محمد, مظفری, سید احمد,

Abstract Introduction: Researches have been shown if water and wastewater treatment systems properly managed, it provides a major part of water reservoirs for the needs of developing countries. Because of the uncontrolled increase in concentrations of fine particle materials, organic and inorganic compounds and especially heavy metals in water, the conventional methods of treatment is not able...

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