نتایج جستجو برای: معادلات mhd

تعداد نتایج: 34881  

2013
X. Meng G. Tóth A. Glocer M.-C. Fok T. I. Gombosi

[1] We have recently extended the global magnetohydrodynamic (MHD) model BATS-R-US to account for pressure anisotropy. Since the inner magnetosphere dynamics cannot be fully described even by anisotropic MHD, we coupled our anisotropic MHD model with two inner magnetospheric models: the Rice Convection Model (RCM) and the Comprehensive Ring Current Model (CRCM). The coupled models provide bette...

Journal: :JNMA; journal of the Nepal Medical Association 2013
Aparna Shah Rajani Hada Bhasker Mahan Mehar Kayastha

INTRODUCTION Dermatological disorders are common complications of CKD affecting all most all patients. Present study aimed to evaluate these disorders in CKD with and without Maintenance Hemodialysis and their association with age, sex, severity and duration of CKD and dialysis. METHODS It is a cross-sectional comparative study. Eighty-three patients with established CKD, without MHD (n=35) a...

2011
J. Terradas J. Andries

Context. Oscillations in coronal loops are usually interpreted in terms of uncoupled magnetohydrodynamic (MHD) waves. Examples of these waves are standing transverse motions, interpreted as the kink MHD modes, and propagating slow modes, commonly reported at the loop footpoints. Aims. Here we study a simple system in which fast and slow MHD waves are coupled. The goal is to understand the finge...

2006
Masahiro N. Machida Tomoaki Matsumoto

The stellar core formation and high speed jets driven by the formed core are studied by using three-dimensional resistive magnetohydrodynamical (MHD) nested grid simulations. Starting with a Bonnor-Ebert isothermal cloud rotating in a uniform magnetic field, we calculate the cloud evolution from the molecular cloud core (nc = 10 6 cm, rc = 4.6×10 4 AU) to the stellar core (nc ≃ 10 23 cm, rc ≃ 1...

Journal: :Journal of the National Medical Association 2007
Anouk Amzel Chandak Ghosh

OBJECTIVES To assess American newspaper coverage regarding racial and ethnic minority health disparities (MHDs). METHODS LexisNexis was queried with specific word combinations to elicit all MHD articles printed in 257 newspapers from 2000-2004. The full texts were read and articles categorized by racial/ethnic group and specific MHD topics mentioned. RESULTS In the five years from 2000-2004...

2007
Ying-Juan Ma Andrew F. Nagy Gabor Toth Thomas E. Cravens Christopher T. Russell Tamas I. Gombosi Jan-Erik Wahlund Frank J. Crary Andrew J. Coates César L. Bertucci Fritz M. Neubauer

[1] The wake region of Titan is an important component of Titan’s interaction with its surrounding plasma and therefore a thorough understanding of its formation and structure is of primary interest. The Cassini spacecraft passed through the distant downstream region of Titan on 18:59:30 UT Dec. 26, 2005, which is referred to as the T9 flyby and provided a great opportunity to test our understa...

2007
J. W. S. Blokland R. Keppens J. P. Goedbloed

Context. We present a detailed study of localised magnetohydrodynamical (MHD) instabilities occuring in two– dimensional magnetized accretion disks. Aims. We model axisymmetric MHD disk tori, and solve the equations governing a two–dimensional magnetized accretion disk equilibrium and linear wave modes about this equilibrium. We show the existence of novel MHD instabilities in these two–dimensi...

2000
O. G. Miranda

We re-analyse the resonant spin–flavour (RSF) solutions to the solar neutrino problem in the framework of analytic solutions to the solar magneto-hydrodynamics (MHD) equations. By substantially eliminating the arbitrariness associated to the magnetic field profile due to both mathematical consistency and physical requirements we propose the simplest scheme (MHD-RSF, for short) for solar neutrin...

2009
Jungyeon Cho

We present numerical simulations of electron magnetohydrodynamic (EMHD) and electron reduced MHD (ERMHD) turbulence. Comparing scaling relations, we find that both EMHD and ERMHD turbulence show similar spectra and anisotropy. We develop new techniques to study anisotropy of EMHD turbulence. Our detailed study of anisotropy of EMHD turbulence supports our earlier result of k‖ ∝ k ⊥ scaling, whe...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2012
Carla Maria Avesani Stanislas Trolonge Patrik Deléaval Flavia Baria Denise Mafra Gerd Faxén-Irving Phillipe Chauveau Daniel Teta Maria Ayako Kamimura Lilian Cuppari Maria Chan Olof Heimbürger Denis Fouque

BACKGROUND The assessment of physical activity and energy expenditure is relevant to the care of maintenance haemodialysis (MHD) patients. In the current study, we aimed to evaluate measurements of physical activity and energy expenditure in MHD patients from different centres and countries and explored the predictors of physical activity in these patients. METHODS In this cross-sectional mul...

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