Abstract: A method for establishing a direct communication using an unmanned aerial vehicle (UAV) with a reconfiguration intelligent surface (RIS) includes configuring RIS parameters based on compensating for undesired oscillations of a position and an orientation associated with the UAV. A signal reflection associated with a beam signal is steered to a target area based on the RIS parameters and by the RIS of the UAV. The signal beam is from a transmitter.

Abstract: A method passively detects intrusion in an indoor environment. The method includes: establishing at least one communication channel between two millimeter (mm)-wave devices of a plurality of mm-wave devices deployed within the indoor environment, continuously monitoring communication channel parameters of the at least one communication channel, and triggering an intrusion detection process based on variations of the communication channel parameters.

Abstract: A device has removable, height-adjustable and positionable shelves. The device includes a pair of vertical struts inside of which suitable brackets of associated boards, can run. The vertical struts, have respective “racks” positioned in a back part of the struts, on which suitable toothed wheels are engaged that are located in a middle part of a rear end of each bracket. A lower end of each bracket a suitable toothed sliding back is located which, when the associated bracket is positioned in a normal horizontal position, i.e., at a right angle to the respective vertical strut, is engaged to a relative portion of the respective rack, but when the bracket is raised by being inclined upwardly at its front part, rotating around the associated toothed wheel, the sliding block is disengaged from the rack, thus being able to run freely vertically along the associated vertical strut.

Abstract: Device realizing removable brackets, variously adjustable and positionable in the sense of height fundamentally constituted by couples of vertical rod (11) of guide inside which can slide idoneous hanger (3) of relative shelf (2), said device (1), inside the vertical rod (11) are placed, in the rear position of the same, respective “rack” (111) on which (111) will engages idoneous gears (111a) placed in the median part of the rear extremity of each hanger (3), in the inferior extremity of each hanger (3) being placed an idoneous sliding bloc (111b) provided of tooth which, when the relative hanger (3) results placed in the normal horizontal position, i.e.