This paper describes the optimisation of arrays wave energy converters (WECs) point absorber type. The WECs are spherical in shape and operate heave only. Previous work is extended to an array layouts without a prescribed geometry. objective function chosen as mean interaction factor over range incident angles. formulation forces perform optimally specified angle, direct concern for wavelength ...

This paper concentrates on the reflection of plane waves in the mixture of generalized thermo elastic solid half-space. There exists quasi dilatational waves i.e. qP1, qP2, qT and two rotational waves S1, S2 in a two dimensional model of the solid. The boundary conditions are solved to obtain a system of five non-homogeneous equations for amplitude ratios. These amplitude ratios are found to de...

In this paper, an ideal cylindrical metamaterial invisibility cloak with infinite-length which its electric permittivity and magnetic permeability mapped to the Drude dispersion model is simulated. The sinusoidal plane waves with microwave frequencies used as sources. To this end, the dispersive finite-difference time-domain method (FDTD) used with Convolutional Perfectly Matched Layered (CPML)...

In this study, the authors used Tropical Rainfall Measuring Mission precipitation radar (TRMM PR) data to investigate changes in the actual (attenuation corrected) surface backscattering cross section ( e) due to changes in surface conditions induced by rainfall, the effects of changes in e on the path integrated attenuation (PIA) estimates by surface reference techniques (SRTs), and the effect...

Problem statement: As vehicle population increases, Intelligent Transportation Systems (ITS) become more significant and mandatory in today’s overpopulated world. Vital problems in transportation such as mobility and safety of transportation are considered more, especially in metropolitans and highways. The main road traffic monitoring aims are: the acquisition and analysis of traffic figures, ...

Robust and reliable classification of sea ice types in synthetic aperture radar (SAR) images is needed for various operational environmental applications. Previous studies have investigated the class-dependent decrease SAR backscatter intensity with incident angle (IA); others shown potential textural information to improve automated image classification. In this work, we investigate inclusion ...