The paper begins by outlining the role and importance of coal as a source of energy and in the steel industry. It briefly describes the longwall method of working together with the conventional machinery used in the method. A mathematical model is then proposed that shows the relationship between the gradient of the coal seam, that of the face and the entries to the panel. Determination of a mo...

Face viewpoint aftereffect is a visual illusion that, after adaptation to a face side view, the perceived view direction of the same face subsequently presented near its front view is biased in a direction opposite to that of the adapted view. Eye gaze is a unique component in face not only because its direction is relatively independent of face view direction, but also because it is a primary ...

|We developed the system which can estimate the face-direction of a person with two cameras using stereo vision. In this system, the eyes and the mouth are extracted in each image for measurement of their 3D position by matching the each feature in the one image with in the other. Then, face direction is obtained from the normal of the plane which is determined by the 3D coordinates of the feat...

Purpose. Establish an effective direction of the mining front in beams locations at development a placer mineral deposit. Research methodology. The analytical method research was used for determining time pit section with crossed beam surface when applying schemes longitudinal and transverse movement front. graphical to analyze established dependences maximum allowable cutwidth into rock mass o...