Abstract: A powered lift chair comprises a frame, a backrest, left and right armrests, a seat, a footrest, and a pair of linear actuator mechanisms. A first one of the pair of linear actuator mechanisms is utilized to control the backrest of the chair, while the second one of the pair of linear actuator mechanisms is utilized to move the frame of the chair between a lowered position and an elevated position, as well as to move the seat of the chair between a substantially horizontal orientation and a tilted orientation such that the forward end portion of the seat is tilted downwardly while the rearward end portion of the seat is tilted upwardly, all while the left and right armrests are fixed in position and disposed within horizontal planes.

Abstract: The invention provides a fabrication method for a chalcopyrite powder. The fabrication method includes: (a) mixing a Group IB compound and a Group IIIA compound in a solvent; (b) drying or precipitating the solution of step (a) to obtain a precursor containing Group IB and Group IIIA elements; (c) mixing a solution or powder containing a Group VIA compound with the precursor; and (d) heating the mixture of step (c) to obtain the chalcopyrite powder.

Abstract: The invention provides a fabrication method for a chalcopyrite powder. The fabrication method includes: (a) mixing a Group IB compound and a Group IIIA compound in a solvent; (b) drying or precipitating the solution of step (a) to obtain a precursor containing Group IB and Group IIIA elements; (c) mixing a solution or powder containing a Group VIA compound with the precursor; and (d) heating the mixture of step (c) to obtain the chalcopyrite powder.