Shallow seismic reflection marine profiles were collected in the area of Balaton Lake in Hungary using high frequency boomer techniques, in order to get information about the stratigraphy of the sedimentary layers. The noise in these shallow marine seismic reflection data is analyzed, and a series of traditional seismic data processing techniques is applied to improve the S/N ratio and coherenc...

Three examples of the inversion of refraction data by downward continuation illustrate the applicability of the method to field data. The first example is a refraction profile from the Mojave Desert, California. These data are spatially aliased and contain clear evidence of lateral inhomogeneity. The inversion in this case produces a broken image in the slowness-depth domain due to the lateral ...

Many Dipteran compound eyes, especially the Tabanidae, show colored reflection patterns ivhen illuminated with white light. For instance, the female horsefly Hybomitra lasiophthalma compound eye, when viewed from the same direction as the illumination, displays a stripsd pattern consisting of 5 dark stripes, predominantly bluish, and 4 bright stripes, predominantly orangish. The pattern consist...

The variation in seismic P to P reflection amplitude with offset (AVO) caused by a system of fractures embedded in an isotropic background is investigated. Additionally. a sensitivity analysis of AVO parameters with respect to the fracture system parameters is made. The fracture system is assumed to be aligned vertically or horizontally and can be gas filled or fluid filled. Elastic constants a...

Knowledge of subsurface material response to seismic waves is important in developing a site-response model. Seismic velocities give insight into precautions that should be taken in anticipation of an earthquake. The method of fixed bandwidth extended Vibroseis correlation was used to extract reflections deeper than conventionally accomplished with only a 2-second listen time. A method to accur...

We proposed a physics-based rendering method for reflection of woven textiles. Both reflection properties of fibers and yarns are taken into account, which are the primary factors affecting visual appearance of cloths. The reflection from fiber surfaces is analyzed using Kirchhoff diffraction theory, assuming a statistical surface. Yarns are usually consisted of a group of fibers and they are s...

In reflection seismology one places sources and receivers on the Earth’s surface. The source generates elastic waves in the subsurface, that are reflected where the medium properties, stiffness and density, vary discontinuously. In the field, often, there are obstructions to collect seismic data for all source-receiver pairs desirable or needed for data processing and application of inverse sca...