Abstract: A mixed metal oxide catalyst includes NiMnO nanoparticles on a TiO2 nanoparticle support. The catalyst may be used to produce biodiesel from waste oils, such as used cooking oils, through a transesterification reaction. The process of producing biodiesel using waste oils using the mixed metal oxide catalyst eliminates a need for quenching, reduces issues related to saponification and glycerol recovery, and allows for easy recovery and reuse of the mixed metal oxide catalyst in an economical and environmentally friendly way.

Abstract: In a socket system and method for coupling a pin of an IC (integrated circuit) device to a contact pad of a circuit board, a zif opening on a socket asserts substantially zero force as the pin of the IC device is inserted therein. In addition, a compression mount lead on the socket presses against the contact pad of the circuit board. Once inside the zif opening, the pin is coupled to the compression mount lead via forking leads that press against the pin. Thus, substantially zero force is applied on the body of the IC device. Furthermore, top portions of the forking leads contact a top portion of the pin toward the IC device to minimize an electrical path length.