The analysis of resonant frequency for anisotropic artificial circular dielectric resonator (CDR) encapsulated in waveguide is investigated theoretically. The anisotropic permittivity of CDR is established by taking a relative permittivity value in one direction higher than the values of other directions in cylindrical coordinate system. By deriving Maxwell time-dependent curl equations for the...

Recent technological improvements have extended the application range of dielectric permittivity biomass measurements to on-line monitoring of physiological changes during bacterial fermentations. In an industrial fermentation of Bacillus thuringiensis, it is important to verify the intactness of bacterial plasmid content in all steps of culture. Changes in certain plasmid resident properties o...

The paper addresses numerical time-domain methods for modeling of active and passive dispersive media, needed for simulations of plasmonic metamaterials. The proposed algorithms differ from published results, as our models employ more general formalisms and are more computationally efficient. The frequency dispersion of the permittivity is considered as an arbitrary Pade approximant, its numeri...

In this paper, we describe a novel 3-D Luneburg lens using radial holes. A can suppress the side lobe of antenna and increase gain. The prototype was fabricated 30mm radius dielectric sphere with uniform permittivity by 2.1 many holes 1mm radius, called drilled vertically on surface. relative distribution is realized changing number depth five types To confirm effectiveness lens, far-field radi...

The influence and importance of the relative static permittivity (RSP) in electrolyte equations state is examined for case aqueous sodium chloride. Using SAFT-VR Mie model, Debye-Hückel (DH) or Mean-Spherical Approximation (MSA) terms, as well Born-solvation term, are used to formulate an equation state. RSP obtained from a variety models, each differing their dependencies; we consider constant...

Perceived-pitch tracking of potentially aperiodic sounds, as well as pitch tracking of multiple simultaneous sources, is shown to be feasible using a probabilistic methodology. The use of a shift-invariant representation in the constant-Q domain allows the modeling of perceived pitch changes as vertical shifts of spectra. This enables the tracking of these changes in sounds with an arbitrary sp...