نتایج جستجو برای: magnetic particles

تعداد نتایج: 484699  

جعفریان, مجتبی, سید افقهی, سید سلمان سید, صالحی, محسن,

In this research, investigation of the microstructure and magnetic properties of doped barium hexaferrite with cobalt, chromium and tin with BaCoxCrxSnxFe12-3xO19 (x=0.3,0.5) formula, was performed using solid state method. Phase and structural investigation by X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) Spectroscopy respectively, confirmed the formation of barium hexaferrites...

2011
Qi Zhang Keting Gui

Effects of magnetic fields on improving mass transfer in flue gas desulfurization with a fluidized bed are investigated in the paper. In this research, the magnetically fluidized bed (MFB) is used as the reactor in which ferromagnetic particles are fluidized with simulated flue gas under the influence of an external magnetic field. Lime slurry is continuously sprayed into the reactor. As a cons...

Journal: :پژوهش های چینه نگاری و رسوب شناسی 0
azizolahe taheri hossien mosaddegh mahnaz amirshahkarami maryam mirshahani mohammad nabi gorgij maeyam motamedalshariati ebrahim ghasemi-nejad

â â â  â  â â â â â â â  abstract â  the abtalkh formation in the kopeh-dagh basin in northeastern iran with an age of late cretaceous (turonian – santonian) is selected to evaluate resolution of magnetic susceptibility for assessing sea level fluctuations. thirty-nine shale samples were collected and studied for magnetic susceptibility and palynology. assuming the average ms magnitude as the...

2011
Dana Rosická Jan Šembera

Zero-valent iron nanoparticles rapidly aggregate. One of the reasons is magnetic forces among the nanoparticles. Magnetic field around particles is caused by composition of the particles. Their core is formed from zero-valent iron, and shell is a layer of magnetite. The magnetic forces contribute to attractive forces among the nanoparticles and that leads to increasing of aggregation of the nan...

2007
Edward J. Felton Daniel H. Reich

Nanoscale magnetic particles are playing an increasingly important role as tools in biotechnology and medicine, as well as for studying biological systems. With appropriate surface functionalization, they enable the selective application of magnetic forces to a wide range of cells, subcellular structures, and biomolecules, and have been applied to or are being developed for areas including magn...

2006
Kirill Sandomirski

2 Magnetic and optical properties of liquid crystalline colloidal particles 33 2. Introduction This work is concerned with the solution of an important problem of influence of a magnetic field on rotational diffusion in anisotropic colloidal solutions. It describes the results of experimental investigations of the author carried out using the method of diffusing-wave spectroscopy and the method...

2010
Ramon Egli Amy P. Chen Michael Winklhofer Kenneth P. Kodama Chorng-Shern Horng

[1] We present a highly sensitive and accurate method for quantitative detection and characterization of noninteracting or weakly interacting uniaxial single domain particles (UNISD) in rocks and sediments. The method is based on high-resolution measurements of first-order reversal curves (FORCs). UNISD particles have a unique FORC signature that can be used to isolate their contribution among ...

2014
Yusheng Jiang Hui Wang Shunbo Li Weijia Wen

This paper reviews the applications of micro/nanoparticles in microfluidics device fabrication and analytical processing. In general, researchers have focused on two properties of particles--electric behavior and magnetic behavior. The applications of micro/nanoparticles could be summarized on the chip fabrication level and on the processing level. In the fabrication of microfluidic chips (chip...

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