Systems and techniques relating to wireless communications are described. The peripheral components may be hinged or removed at the interfaces so as to narrow the implement either for transport with its length transverse to the direction of travel or for endwise transport. The materials handling system includes a mixing portion disposed to mix colored particles into a mixed composition. Also, a fan including above-mentioned impeller structure is disclosed. A first jaw and a second jaw are positioned on either side of a frame channel and, when the embodiment is rotated the jaw spacing is lessened causing the first jaw and the second jaw to clamp against the frame channel thereby allowing lifting of large framed units such as glass door units. Specifically, the use of long-duration, pulsed lasers and closely-spaced, low-charge and low emittance bunches of electron beams increase the spectral flux of the Compton-scattered x-rays and gamma rays, increase efficiency of the laser-electron interaction and significantly reduce the overall complexity of Compton based light sources.