When there are installations of air velocity sensors in the mining industry for real-time airflow monitoring, a problem exists with how the monitored air velocity at a fixed location corresponds to the average air velocity, which is used to determine the volume flow rate of air in an entry with the cross-sectional area. Correction factors have been practically employed to convert a measured cen...

The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches only deal with locations at maximum precision (e.g., GPS coordinates). However, due to imprecision or expressivity requirements, there are situations in which locations must be handled at different granularity levels (e.g., ne...

This paper focusses on obtaining a better understanding of the subsurface geology Chibougamau area, in northeast Abitibi greenstone belt (Superior craton), using geophysical data collected along 128 km long traverse with rough southwest–northeast orientation. We have constructed two-dimensional (2D) models study area that are consistent newly gravity and high-resolution magnetic sets. The initi...

Two stochastic processes describing the contour of simply generated random trees are studied: the contour process as deened by Gutjahr and PPug 9] and the traverse process constructed of the node heights during pre-order traversal of the tree. Using mul-tivariate generating functions and singularity analysis the weak convergence of the contour process to Brownian excursion is shown and a new pr...

A simple, rapid protocol is described for separation of chemical agents into different classes, dependent upon their effects on cell-cycle traverse in line CHO Chinese hamster cells. The technique is a functional assay in that it measures the ability of synchronized cells to traverse the cell cycle on the basis of determination of the labeled and mitotic fractions in autoradiographs prepared fr...

Soon robotic explorers will be able to produce more scientific data than can be transmitted or interpreted efficiently. We present a method for characterizing geology during rover traverse using autonomous data analysis techniques. The strategy detects discrete geologic features in images; distributions of these features constitute a signature that correlates with the geology of each site. Thes...

Medium-frequency (MF) ground wave propagation is playing one of the most important roles for a long distance communication. When the surface impedance of the earth along the propagation path changes the ground wave propagation is influenced strongly as it occurs when the radio wave traverses a border from an urban area to a suburban area or viceversa [1]-[4]. The measurements of the ground wave...