In cylindrical continua, hoop stresses are induced due to the circumferential failure. This mainly happens when the cylinder is subjected to mechanical loads which vary in the circumferential directions. On the other hand, radial stress is stress in the direction of or opposite to the central axis of a cylindrical body. In the present study, the influence of curvilinear anisotropy on the radial...

In this paper, we present a method for computing angle-domain common-image gathers from wave-equation depth-migrated seismic images. We show that the method amounts to a radial-trace transform in the Fourier domain and that it is equivalent to a slant stack in the space domain. We obtain the angle-gathers using a stretch technique that enables us to impose smoothness through regularization. Sev...

In this paper, we present a new texture representation of face image using a robust feature from the Trace transform. The masked Trace transform (MTT) offers “texture” information for face representation which is used to reduce the within-class variance. We first transform the image space to the Trace transform space to produce the MTT. Weighted Trace transform (WTT) identifies the tracing line...

We find a formula that relates the Fourier transform of a radial function on R with the Fourier transform of the same function defined on R. This formula enables one to explicitly calculate the Fourier transform of any radial function f(r) in any dimension, provided one knows the Fourier transform of the one-dimensional function t 7→ f(|t|) and the two-dimensional function (x1, x2) 7→ f(|(x1, x...

one of the most fundamental reservoir characteristics is the thickness. the analysis of thin bed tuning on seismic reflectivity has been studied extensively by wides (1973) and neidel and pogiaggliomi (1977), who discussed the limits of seismic resolution. during the past decade, the industry has developed a plethora of new attributes in studying thin beds by employing spectral decomposition (p...

Trace minerals exist in cells and tissues of the animal body in a variety of chemical combinations, and in characteristic concentrations, depending on the trace mineral consumed and the tissue in which the trace mineral is metabolized (McDowell, 1992; Underwood and Suttle, 1999). Concentrations of trace minerals must be maintained within narrow limits in a cell (McDowell, 1989, 1992; Underwood ...

We present object recognition algorithm robust under translation, rotation, scaling, local texture distortion and local geometrical deformation of an image. We first solve the problems in image database retrieval by transforming the image space into the Trace transform space. A robust feature from the Trace transform can be thought of as texture representations which can be used in an object re...

In this paper, we present a general framework for image retrieval that is invariant to translation, rotation, scaling, local texture distortion and local geometrical deformation of an image. We first solve the problems in image database retrieval by transforming the image space into the Trace transform space. The Trace transform captures the key characteristics of an object by suppressing varia...