Browsing by Keywords "Theory"
Now showing items 115 of 15

Approximate fourier domain expression for blochsiegert shift
(John Wiley and Sons Inc., 2015)Purpose: In this study, a newsimple Fourier domainbased analytical expression for the BlochSiegert (BS) shiftbased B1 mapping method is proposed to obtain B1+ more accurately while using short BS pulse durations and ... 
Charged bosons in a quasionedimensional system
(American Physical Society, 2000)The groundstate properties of a system of charged bosons in a quasionedimensional model with a neutralizing background are investigated within the hypernettedchain approximation. Strong correlation effects drive the ... 
Circuit partitioning using mean field annealing
(Elsevier, 1995)Mean field annealing (MFA) algorithm, proposed for solving combinatorial optimization problems, combines the characteristics of neural networks and simulated annealing. Previous works on MFA resulted with successful mapping ... 
Context and theorizing in the global south: challenges and opportunities for an international dialogue
(ANPAD  Associacao Nacional de PosGraduacao e Pesquisa em Administracao, 2019)Brazilian researchers have been encouraged to internationalize their research, expanding their insertions into high impact international journals. This task in turn demands thinking outside the commonly used Eurocentric ... 
Density profile of a BoseEinstein condensate inside a pancakeshaped trap: Observational consequences of the dimensional crossover in the scattering properties
(Elsevier Science B.V., 2002)It is theoretically well known that twodimensionality of the scattering events in a BoseEinstein condensate introduces a logarithmic dependence on density in the coupling constant entering a meanfield theory of the ... 
Dynamic correlation effects on the plasmon dispersion in a twodimensional electron gas
(The American Physical Society, 2003)The chargedensity oscillations (plasmons) of a lowdensity twodimensional uniform electron gas are studied within the framework of finite temperature and frequency dependent (dynamic) version of Singwi, Tosi, Land, and ... 
Guiding, bending, and splitting of electromagnetic waves in highly confined photonic crystal waveguides
(American Physical Society, 2001)We have experimentally demonstrated the guiding, bending, and splitting of electromagnetic (EM) waves in highly confined waveguides built around threedimensional layerbylayer photonic crystals by removing a single rod. ... 
Intravascular extended sensitivity (IVES) MRI antennas
(John Wiley & Sons, Inc, 2003)The design and application of an intravascular extended sensitivity (IVES) MRI antenna is described. The device is a loopless antenna design that incorporates both an insulating, dielectric coating and a winding of the ... 
Negative refraction and superlens behavior in a twodimensional photonic crystal
(American Physical Society, 2005)We experimentally and theoretically studied a lefthanded structure based on a photonic crystal (PC) with a negative refractive index. The structure consists of triangular array of rectangular dielectric bars with dielectric ... 
Rydberg aggregates
(Institute of Physics Publishing, 2018)We review Rydberg aggregates, assemblies of a few Rydberg atoms exhibiting energy transport through collective eigenstates, considering isolated atoms or assemblies embedded within clouds of cold groundstate atoms. We ... 
A sketch of a system of theory and practice
(Sage Publications Ltd, 2015)Most political theorists are committed to one particular view about the relation between theory and practice. It is argued in this article that there are in fact four possible ways of relating theory and practice, which ... 
Spin correlations in electron liquids: Analytical results for the localfield correction in two and three dimensions
(Springer, 1998)We study the spin correlations in two and threedimensional electron liquids within the sumrule version of the selfconsistent field approach of Singwi, Tosi, Land, and Sjölander. Analytic expressions for the spinantisymmetric ... 
Spindependent analysis of twodimensional electron liquids
(The American Physical Society, 2002)Twodimensional electron liquid (2D EL) at full Fermi degeneracy is revisited, giving special attention to the spinpolarization effects. First, we extend the recently proposed classicalmap hypernettedchain (CHNC) technique ... 
SPTfunction and its properties
(Bilkent University, 2014)In this thesis, we survey some properties of the sptfunction. We start with providing some background information for qseries and the partition function p(n). Then we define the sptfunction and study its generating ... 
A systematic theory of tradition
(Brill Academic Publishers, 2016)We still lack a systematic or complete theory of tradition. By referring to the works of many major figures of the last century  Arendt, Boyer, Eisenstadt, Eliot, Gadamer, Goody, Hobsbawm, Kermode, Leavis, MacIntyre, ...