in the open-pit mining, one of the first decisions that must be made in production planning stage, after completing the design of final pit limits, is determining of the processing plant cut-off grade. since this grade has an essential effect on operations, choosing the optimum cut-off grade is of considerable importance. different goals may be used for determining optimum cut-off grade. one of...

Ore grade is one of the main variables that characterise an orebody. Almost every mining project begins with the determination of ore grade distribution in three-dimensional space, a problem often reduced to modelling the spatial variability of ore grade values. So far, this has been achieved following the geostatistical approach, and more precisely, it’s main process of structural analysis. St...

Purpose: In this study; we aimed to compare tumor volume with other prognostic determinants by making stereologic estimation. Material and Methods: In the mastectomy materials of 44 patients; tumor volume was calculated with the Cavaliery principle and compared with the classically known other pathologic variables. Results: There is a statistically significant correlation between histologic gra...

one studies the $hx$-hypergroups, corresponding to the chinese hypergroups associated with the direct products of some ${bf z}/n {bf z},$ calculating their fuzzy grades.

in this study we have described our varicocele cases in terms of associated symptoms/signs. in addition, we have tested the correlation between semen parameters and varicocele grades and compared the relative frequencies of associated symptoms/signs in different varicocele grades. 1 19 referred cases of varicocele were categorized based on clinical criteria into 3 grades by one examiner. the re...