Analytical relations, describing the electrical fields of cylindrical piezoceramic radiators with circular polarization as a member systems baffle in inner cavity, using related method multiply connected regions were obtained. Comparative analysis results numerical experiments performed on frequency characteristics electric field radiating for different modes radiation allow to establish number...

An en face, medium energy electron boost of approximately 10 Gy is often given to stomal and peristomal tissues. Because the boost is considered a simple treatment, CT-based treatment planning is rarely used. Further, the results of such a plan might be inaccurate, as the complex dose distribution surrounding the stoma air cavity is poorly modeled by many treatment planning systems. We construc...

The morphology, infraciliature, and silverline system of a new marine scuticociliate, Dexiotrichides pangi n. sp. were investigated. The new species is characterized by: size about 45-65 x 20-25 microm in vivo with kidney-like body shape and obliquely truncated semicircle-shaped apical plate; cytostome at bottom of conspicuously depressed oral cavity, which is located at the cell equatorial lev...

Intraluminal manometry is a tool commonly used to record motility in the human digestive tract. The recorded signal results from a combination of factors, including the hydrodynamic pressure transmitted through the intestinal contents due to contraction of the gut wall and the force of the gut wall acting on the sensors in regions of a luminal occlusion. However, the actual relationships betwee...

The differential quadrature method (DQM) has been so far applied to a wide variety of fluid and/or structural problems. The results of many researchers reveal that the DQM is computationally efficient and is applicable to a large class of boundary value problems. However, there is little information about its applications to fluidstructure interaction problems. Therefore, the purpose of this pa...

In this paper, the effect of both uniaxial anisotropy in the substrate and air gap layer on the resonant frequency and bandwidth of circular microstrip patch are investigated. The problem is rigorously formulated based on the spectral domain technic in conjunction with Galerkin approach for computing the resonant frequency, half-power bandwidth, and radiation field of a tunable circular patch a...

This paper implements the lattice Boltzmann method to simulate propagation of sound waves in three dimensions. The numerical model is exercised on lid-driven cavity flow. Tests are then proposed acoustic situations. results first confronted with analytical solutions spherical emitted by a single point source inside cubic cavity. Then, we studied case where from circular placed at center left bo...

AbstractIn this paper a design approach of circular microstrip patch antenna for dual frequency operation is described. The antenna dimensions are computed from the cavity model at fundamental frequency 2.1 GHz for TM110 mode. For better performance of the antenna, coaxial probe feed technique is used for excitation. Two parallel slots and another orthogonal slot are introduced to a conventiona...

some analysis has been presented on a circularly polarized microstrip antenna with T slot configurations in detail. Here we will design a T-slot coupled circularly polarized microstrip antenna in the frequency 1.575 GHz. The upper patch i.e. the radiating patch would be circular. There is no closed form expression so that by using that expression the dimensions of the proposed antenna could be ...