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8 papers · 1 filter
Magnetic Strings in Einstein-Born-Infeld-Dilaton Gravity
M. H. Dehghani, A. Sheykhi, S. H. Hendi
A class of spinning magnetic string in 4-dimensional Einstein-dilaton gravity with Liouville type potential which produces a longitudinal nonlinear electromagnetic field is present…
The Effects of Fourth Generation on the double Lepton Polarization in B \rar K \ell^+ \ell^- decay
V. Bashiry, S. M. Zebarjad, F. Falahati +1
This study investigates the influence of the fourth generation quarks on the double lepton polarizations in B \rar K \ell^+ \ell^- decay. Taking |V_{t's}V_{t'b}|\sim \{0.01-0.03\}…
String inspired explanation for the super-acceleration of our universe
Ahmad Sheykhi, Bin Wang, Nematollah Riazi
We investigate the effect of the bulk content in the general Gauss-Bonnet braneworld on the evolution of the universe. We find that the Gauss-Bonnet term and the combination of the…
A Class of Multi-Channel Cosine Modulated IIR Filter Banks
Sundaram Vanka, M. J. Dehghani, K. M. M. Prabhu +1
This paper presents a class of multi-channel cosine-modulated filter banks satisfying the perfect reconstruction (PR) property using an IIR prototype filter. By imposing a suitable…
Hard-wall Potential Function for Transport Properties of Alkali Metals Vapor
M. H. Ghatee, F. Niroomand-Hosseini
This study demonstrates that the transport properties of alkali metals are determined principally by the repulsive wall of the pair interaction potential function. The (hard-wall)…
Boundary Conditions in Stepwise Sine-Gordon Equation and Multi-Soliton Solutions
N. Riazi, A. Sheykhi
We study the stepwise sine-Gordon equation, in which the system parameter is different for positive and negative values of the scalar field. By applying appropriate boundary condit…