نتایج جستجو برای: magnetic matter

تعداد نتایج: 540637  

Journal: :Annals of neurology 2003
Marjo S van der Knaap Patrick van der Voorn Frederik Barkhof Rudy Van Coster Ingeborg Krägeloh-Mann Annette Feigenbaum Susan Blaser Johan S H Vles Peter Rieckmann Petra J W Pouwels

We identified eight patients with a distinct magnetic resonance imaging pattern of inhomogeneous cerebral white matter abnormalities and selective involvement of brainstem and spinal tracts. Proton magnetic resonance imaging showed increased lactate in the abnormal white matter. Clinically, the patients had slowly progressive pyramidal, cerebellar, and dorsal column dysfunction. The uniform, hi...

2003
M. M. Romanova A. V. Koldoba

Magnetohydrodynamic (MHD) simulations have been used to study disk accretion to a rotating magnetized star with an aligned dipole moment. Quiescent initial conditions were developed in order to avoid the fast initial evolution seen in earlier studies. A set of simulations was performed for different stellar magnetic moments and rotation rates. Simulations have shown that the disk structure is s...

1996
Somenath Chakrabarty

The effect of strong magnetic field on the stability and gross properties of bulk as well as quasi-bulk quark matter has been investigated using the conventional MIT bag model. Both the Landau diamagnetism and the paramagnetism of quark matter has been studied. How the quark hadron phase transition is affected by the presence of strong magnetic field has also been investigated. The equation of ...

2008
David Tsiklauri

Using an example of the galaxy, an attempt is made to explain the flat rotational curves of galaxies by means of the Ampere force. This is the first attempt of fitting the rotational curve without both non-baryonic dark matter and modifications to gravity. Using acceptable models for the galactic magnetic field and plausible physical parameters, we find that the flat rotational curves can be ob...

2007
Z. Medin

The cohesive energy of condensed matter in strong magnetic fields is a fundamental quantity characterizing magnetized neutron star surfaces. The cohesive energy refers to the energy required to pull an atom out of the bulk condensed matter at zero pressure. Theoretical models of pulsar and magnetar magnetospheres depend on the cohesive properties of the surface matter in strong magnetic fields....

Journal: :Physical review. D, Particles and fields 1996
Chakrabarty Sahu

We study the effect of a magnetic field on the strage quark matter and apply to strange star. We found that the strange star becomes more compact in presence of strong magnetic field. PACS NO.: 04.40.-b, 97.60.Jd, 97.60.Gb, 98.35Eg Typeset using REVTEX 1 There are several different scenarios for estimation of the magnetic field strength at the surface of neutron star. These are: theoretical mod...

2002
D. Blaschke

We investigate magnetic properties of color superconducting quark matter within a Ginzburg-Landau approach. The simultaneous coupling of the quark fields to gluonic and electromagnetic gauge fields leads to rotated electromagnetism with a massive (Higgsed) and a massless photon-gluon field. We derive the Ginzburg-Landau equations for superconducting quark matter taking into account the rotated ...

Journal: :Proceedings of the National Academy of Sciences 2005

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