Mechanical analysis of floor deformation and floor heave control technology for gob-side entry retaining in medium thick coal seam with shallow cover depth

Gob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency.In order to solve the problem of floor heave deformation of gob-side entry retaining in shallow coal seam, based on the engineering background of 12407 and 12408 fully mechanized mining

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Power-Controlled CDMA Cell Sectorization with Multiuser Detection: A Comprehensive Analysis on Uplink and Downlink

We consider the joint optimization problem of cell sectorization, transmit power control and multiuser detection for a CDMA cell.Given the number of sectors and user locations, Seeds the cell is appropriately sectorized such that the total transmit power, as well as the receiver filters, is optimized.We formulate the corresponding joint optimizatio

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