منابع مشابه
Magnetic Nanoparticles in Magnetic Fluids
Magnetic fluids are stable colloidal systems of fine single-domain magnetic particles (for example Fe3O4, γ-Fe2O3, Co, MnFe2O4, etc.) that are suspended in liquid carrier such as water, mineral oil, damping oil, paraffin, kerosene and so on. The properties of magnetic fluids are well controlled by external magnetic field that gives broad possibilities for technical and biomedical applications. ...
متن کاملOn the dynamics of magnetic fluids in magnetic resonance imaging
The hydrodynamics of magnetic fluids, often termed ferrofluids, has been an active area of research since the mid 1960s. However, it is only in the past twenty years that these fluids have begun to be used in magnetic resonance imaging (MRI) where they have found application as contrast agents, improving the contrast to noise ratio of the received MR intensity. The major goal of this work was t...
متن کاملCharacterisation of magnetic fluids
One method suitable for the accurate characterisation of magnetic fluids is by the measurement of the frequency-dependent, complex susceptibility, χ(ω) = χ′(ω) − iχ′′(ω). Such measurements enable data on, relaxation mechanisms, ferromagnetic resonance, stochastic resonance, non-linear properties, magnetic losses and the signal-to-noise ratio (SNR) of these colloidal nano-particle systems to be ...
متن کاملWorkshop “Geothermal fluids in saline systems”
Editorial Topic 4 of the Renewable Energy Program of the Helmholtz Association focusses inter alia on the sustainable and cost-efficient use of geothermal reservoirs for base-load supply of heat and electricity by EGS. Current EGS projects show the limitations of such systems. Firstly, the localization of a potential reservoir prior to drilling still remains a major challenge. Secondly, the min...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2001
ISSN: 0103-9733
DOI: 10.1590/s0103-97332001000300001