نتایج جستجو برای: magnetic matter

تعداد نتایج: 540637  

1998
Tanusri Ghosh Somenath Chakrabarty

The chemical evolution of nascent quark matter core in a newborn compact neutron star is studied in presence of a strong magnetic field. The effective rate of strange quark production in degenerate quark matter core in presence of strong magnetic fields is obtained. The investigations show that in presence of strong magnetic fields a quark matter core becomes energetically unstable and hence a ...

2017
Arnold M Evia Aikaterini Kotrotsou Ashish A Tamhane Robert J Dawe Alifiya Kapasi Sue E Leurgans Julie A Schneider David A Bennett Konstantinos Arfanakis

Ex-vivo brain quantitative susceptibility mapping (QSM) allows investigation of brain characteristics at essentially the same point in time as histopathologic examination, and therefore has the potential to become an important tool for determining the role of QSM as a diagnostic and monitoring tool of age-related neuropathologies. In order to be able to translate the ex-vivo QSM findings to in-...

Journal: :iranian journal of radiology 0
ho kyun kim department of radiology, school of medicine, catholic university of daegu, daegu, korea mun han department of medical and biological engineering, kyungpook national university, daegu, korea hui joong lee department of radiology, kyungpook national university hospital, daegu, korea; department of radiology, kyungpook national university hospital, daegu, korea. tel: +82-534205390; fax: +82-53422-2677

a 36-year-old woman, diagnosed with systemic lupus erythematosus (sle), showed bulbar symptoms including impaired memory, slurred speech and swallowing difficulty 7 days before admission. magnetic resonance imaging (mri) showed symmetric confluent hyperintensities in the bilateral cerebral white matter on t2 weighted imaging (t2-wi), extended into the genu of the internal capsule and the crus c...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Guo Zhan Lum Zhou Ye Xiaoguang Dong Hamid Marvi Onder Erin Wenqi Hu Metin Sitti

Shape-programmable matter is a class of active materials whose geometry can be controlled to potentially achieve mechanical functionalities beyond those of traditional machines. Among these materials, magnetically actuated matter is particularly promising for achieving complex time-varying shapes at small scale (overall dimensions smaller than 1 cm). However, previous work can only program thes...

Considering the magneto-hydrodynamic equations in a non-relativistic multi uid framework, we study the behavior of small amplitude perturbations in cold quark matter. Magneto-hydrodynamic equations, along with a suitable equation of state for the cold quark matter, are expanded using the reductive perturbation method. It is shown that in small amplitude approximation, such a medium should be co...

Journal: :Progress of Theoretical Physics Supplement 2008

Journal: :Europhysics Letters (EPL) 1992

Journal: :Journal of Experimental and Theoretical Physics 2018

Journal: :journal of sciences, islamic republic of iran 2009
h. mehrban

in this research we work with the effective hamiltonian and the quark model. we investigate the decay rates of matter-antimatter of quark. we describe the effective hamiltonian theory and apply this theory to the calculation of current-current ( ), qcd penguin ( ), magnetic dipole ( ) and electroweak penguin ( ) decay rates. the gluonic penguin structure of hadronic decays is studied through th...

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