Abstract: Systems, methods, apparatuses and devices for detecting facial expressions according to EMG signals for a virtual and/or augmented reality (VR/AR) environment, in combination with a system for simultaneous location and mapping (SLAM), are presented herein.

Abstract: A clutch assembly includes a first member for mechanically coupling to an output shaft. A first material is frictionally coupled to a first side surface of the first member. A second material is frictionally coupled to a second side surface of the first member. A compliant member is configured to apply an axial force on at least one of the first material and the second material. A radial spring least partially surrounds an exterior surface of the first member.

Abstract: A method of increasing the viscosity, and the resistance to high shear induced crystallization, of a pumpable, shear thickened emulsion explosive, is provided wherein the explosive has been prepared by emulsifying an oxidizer salt phase into a fuel phase, and at least a portion of said fuel phase has been replaced with a vegetable oil. The explosives are particularly suitable for use in up-hole blasting operations because of their high viscosity and resistance to shear induced crystallization of the oxidizer salt.

Abstract: A miniature hockey game comprising a substantially horizontal playing surface which moves in an orbital movement in the plane of the surface. Miniature playing members are unattachedly mounted on the playing surface to move over such surface as it is subjected to the orbital movement. Each member has a steering wheel normally in contact with the playing surface to direct its movement and it has a retractable friction disc normally out of contact with the playing surface. The friction disc is mounted on an elbowed shaft so that when it is applied against the surface, the playing member is stopped in its movement and starts to spin. The steering wheel and friction disc are interconnected so that when one touches the playing surface, the other is free from it. Control members are provided beneath the playing surface to cause application of the friction disc against the playing surface through magnetic action.