Abstract—A realistic model of ground soil is developed for the electromagnetic simulation of Ground Penetrating Radar (GPR) systems. A three dimensional Finite Difference Time Domain (FDTD) algorithm is formulated to model dispersive media using N -term Debye permittivity function with static conductivity. The formulation of the algorithm is based on the concept of the Piecewise Linear Recursiv...

Cormac Toher,1 Jose J. Plata,1 Ohad Levy,1,* Maarten de Jong,2 Mark Asta,2 Marco Buongiorno Nardelli,3 and Stefano Curtarolo4,† 1Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA 2Department of Materials Science and Engineering, University of California, Berkeley, 210 Hearst Memorial Mining Building, Berkeley, California 94720, USA 3D...

The dispersion relation of ρ meson in hot/dense medium is analyzed based on the quantum hadrodynamics model with random phase approximation. The real mass and Debye mass behaviors of ρ meson and σ are discussed and compared. The effective masses of ρ and N decrease with the increase of density. The behaviors of Debye masses ms∗ ρ and m s∗ σ vs density are quite different, which reflect the char...

Electron transfer near an electrode immersed in ionic fluids is studied using the linear response approximation, namely, mean value of the vertical energy gap can be used to evaluate the reorganization energy, and hence any linear response model that can treat Coulomb interactions successfully can be used for the reorganization energy calculation. Specifically, a molecular Debye-Hückel theory i...

The characteristic (Laplace or Lévy) exponents uniquely characterize infinitely divisible probability distributions. Although of purely mathematical origin they appear to be associated with the memory functions present in evolution equations which govern course such physical phenomena like non-Debye relaxations anomalous diffusion. Commonly accepted procedure mimic effects is make basic time sm...

With the advent of the current wireless communication revolution and the increase in its applications, the electromagnetic researchers in conjunction with the medical physicians take the initiative of studying the price of this beneficial technical revolution. It is the health hazards due to the electromagnetic radiation on the human body. The most cost efficient mean of studying these effects ...

In this report we consider an electromagnetic interrogation technique for identifying the dielectric parameters of a Debye medium in two and three dimensions. These parameters include the dielectric permittivity, the conductivity and the relaxation time of the Debye medium. In this technique a travelling acoustic pressure wave that is generated in the Debye medium is used as a virtual reflector...