نتایج جستجو برای: density magnetic

تعداد نتایج: 728876  

Journal: :مهندسی مکانیک مدرس 0
مهرداد وحدتی سیدعلیرضا رسولی

0

2004
Yukihisa SUZUKI Kanako WAKE Sumiko WATANABE Masao TAKI Soichi WATANABE Yukio YAMANAKA

Numerical dosimetry on induced current density inside human body exposed to magnetic fields due to induction heat (IH) hob is performed by the impedance method (IM). Magnetic flux density distribution which is obtained by measurement with magnetic probe is used for incident magnetic field in IM. Current density distributions induced within two voxel models of the average Japanese adult male and...

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In this paper, some of the electronic and structural properties of UY2(Y=Ga,Ge) compounds are investigated. The calculations was conducted using the pseudopotential method based on the density functional theory with PWscf code.. The exchange function is a correlation between GGA.PBE and LDA. The increase in pressure also leads to positive changes in the enthalpy of the system, which indicates t...

2008
P. D. Smith

Aims. To investigate magnetic reconnection rates during the coalescence of two current loops in the solar chromosphere, by altering the neutralhydrogen to proton density ratio, ioniziation/recombination coefficients, collision frequency and relative helicity of the loops. Methods. 2.5D numerical simulations of the chromosphere were conducted using a newly developed two-fluid (ion-neutral) numer...

Journal: :Optics letters 2015
Pawan Kumar

The mechanism of a self-generated megagauss magnetic field by an amplitude modulated surface plasma wave (SPW) over a rippled metallic surface is proposed. The amplitude modulated SPW exerts a ponderomotive force on free electrons in the metallic ripple, giving them an oscillatory velocity at the modulation frequency. The oscillatory velocity couples with the electron density in metallic ripple...

, Seyed Mohammad Jafar Pourmir Firoozabadi, M. Janahmadi M. Lak Mehri Kaviani Moghadam

Introduction:  The  use  of  mobile  communication  systems  has  dramatically  increased  over  the  past  decade. Although many studies have been performed to determine the effect of radio frequency (RF) but  less attention has been paid to the possible biological impact of exposure to extremely low frequency  (ELF) components.   The objective of this study is two folds. One is to design the ...

2015
K. Zberecki R. Swirkowicz J. Barna

Thermoelectric properties of silicene nanoribbons doped with magnetic impurity atoms are investigated theoretically for both antiparallel and parallel orientations of the edge magnetic moments. Spin density distribution and transport parameters have been determined by ab-initio numerical methods based on the density functional theory. Doping with magnetic atoms considerably modi es the spin den...

Hojatollah Shahbazian Jafar Fatahiasl Mansour Zabihzadeh Mohammad Ali Behrooz Mohammad Javad Tahmasebibirgani Nahid Chegeni Reza Maskani

Introduction: Photon contamination is a restriction on treatment with electron that increase dose to healthy tissue below the tumor. The aim of this study is to reduce the photon contamination using a magnet system. Materials and Methods: A mini-applicator equipped with two neodymium boron permanent magnets was designed which make it possible to adjust the d...

Journal: :Physical review letters 2002
D J Reilly T M Buehler J L O'Brien A R Hamilton A S Dzurak R G Clark B E Kane L N Pfeiffer K W West

There is controversy as to whether a one-dimensional (1D) electron gas can spin polarize in the absence of a magnetic field. Together with a simple model, we present conductance measurements on ultra-low-disorder quantum wires supportive of a spin polarization at B=0. A spin energy gap is indicated by the presence of a feature in the range (0.5-0.7)x2e(2)/h in conductance data. Importantly, it ...

2008
V. G. Benza B. Cardinetti

We study a two-dimensional spinless particle in a disordered gaussian magnetic field with short time fluctuations, by means of the evolution equation for the density matrix < x (1) |ˆρ(t)|x (2) >; in this description the two coordinates are associated with the retarded and advanced paths respectively. The static part of the vector potential correlator is assumed to grow with distance with a pow...

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