Earth is inhomogeneous, which means its elastic characteristics change with depth. The seismic method employs the propagation of waves throughout the earth to locate different structures and stratigraphy. Understanding the wave propagation is an important matter in exploration seismology; therefore modeling of seismic wave is an important tool. To validate the interpreted earth model out of the...

The interaction between the hydrodynamics and complex bathymetry can produce highly heterogeneous and locally energetic flows, e.g., in a tidal inlet dominated by tidal flow and wave-current interaction. Consequently, the morphological evolution around such tidal inlet also becomes very dynamic. These two factors cause concerns over navigation safety especially in areas where routine surveys ar...

In the realm of materials science, terahertz frequency measurement systems provide significant utility in the characterization of material properties. With support primarily from the U.S. Army National Ground Intelligence Center (NGIC), Submillimeter Technology Laboratory (STL) researchers have been advancing the field of terahertz technology to the application of modeling millimeter-wave and m...

Abstract. Among many structural health monitoring (SHM) methods, guided wave (GW) based method has been found as an effective and efficient way to detect incipient damages. In comparison with other widely used SHM methods, it can propagate in a relatively long range and be sensitive to small damages. Proper use of this technique requires good knowledge of the effects of damage on the wave chara...

A two-dimensional finite element numerical model has been developed to simulate tide and wave characteristics for Maharashtra coastal region, India. The region was divided into four zones based on water depth and the Chezy’s friction coefficient values for each zone were determined. It was noticed that as the water depth decreases the values of friction coefficient increases. Results are valida...

This paper presents a new methodology to compute the electromagnetic field in practical cases of indoor communications. In particular, we consider the highly interesting case of the so-called interface modeling, i.e. when a plane wave propagates to the interior of a building. The proposed technique is based on a parabolic wave equation in three dimensions, while the cross section of the computa...