post-mineralization activities may cause difficulties in the process of ore modeling in porphyry deposits. sungun, nw iran, is one of the porphyry copper deposits, in which dyke intrusions have made ore modeling more complicated than expected. among different kinds of dykes, two types were chosen and the consequent geostatistical analyses were applied on. in this study, simple directional vario...

The effects of using both directions and directional subdividing on adaptive gridembedding on the computational time and the number of grid points required for the same accuracy are considered. Directional subdividing is used from the beginning of the adaptation procedure without any restriction. To avoid the complication of unstructured grid, the semi-structured grid was used. It is used to so...

A finite-difference time-domain (FDTD) numerical analysis is used to demonstrate that a toroidal solenoid, coaxial with an electric dipole, is a remarkable nonradiating configuration. It can be used to measure the dielectric permittivity of any ambient matter. It becomes a directional radiator at an interface between two dielectric media, depositing energy in the material with the highest polar...

The paper considers (a) Representations of measure preserving transformations (“rotations”) on Wiener space, and (b) The stochastic calculus of variations induced by parameterized rotations {Tθw, 0 ≤ θ ≤ ε}: “Directional derivatives” (dF (Tθw)/dθ)θ=0, “vector fields” or “tangent processes” (dTθw/dθ)θ=0 and flows of rotations.

JACKSON, LAURA ELIZABETH. The Directional p-Median Problem with Applications to Traffic Quantization and Multiprocessor Scheduling. (Under the direction of George N. Rouskas and Matthias F.M. Stallmann.) An instance of a p-median problem gives n demand points. The objective is to locate p supply points in order to minimize the total distance of the demand points to their nearest supply point. P...

In this paper, a concept of directional mutations for phenotypic evolutionary algorithms is presented. The proposed approach allows, in a very convenient way, to adapt the probability measure underlying the mutation operator during evolutionary process. Moreover -stable distributions are used to generate the mutation radius. A correlation analysis between control parameters – stability index , ...

This work presents results on axonal arborization identification in cell culture of neurons from Helix aspersa with the use of the directional image method. We implemented the algorithm initially proposed for fingerprint recognition and classification, and adapted this idea to axonal classification and measure.