Abstract: Disclosed is a golf ball designed for longer travel relative the compression of the ball. The golf ball includes: (1) a flexible inner core, preferably comprised of crosslinked synthetic rubber, (2) a perforated barrier shell positioned outside of, and surrounding, the inner core to lessen deformation of the ball when the ball is struck by a golf club, (3) a flexible outer core, preferably comprised of crosslinked, synthetic rubber or windings, positioned outside of and surrounding the perforated barrier shell, and (4) an outer cover, preferably comprised of ionomeric resin material, positioned outside of and surrounding the outer core. The perforated barrier shell reduces deformation of the golf ball upon impact by a golf club and is preferably formed as a sphere centered in the golf ball, preferably having a diameter equal to one-half the diameter of the golf ball.

Abstract: A compact indoor power distribution substation employs ambient-air-insulated high-voltage components, in lieu of gas-insulated components, for the distribution at 36 kV or less of electrical power from 60 kV to 245 kV high-voltage incoming lines. The substation is contained in a rectangular building having a ground floor and a cross-shaped upper floor.

Abstract: A hot press method for the fabrication of doped or undoped gallium nitride compacts, and of other nitride compacts, employs as a starting material a powder mixture of the selected nitride and of a nitrogen rich salt. A preferred method for fabricating gallium nitride compacts employs ammonium carbonate powder as a starting material additive. In the course of the hot press operation, the endothermic volatilization of ammonium carbonate at a temperature below the disassociation temperature threshold of gallium nitride acts to cool the gallium nitride and also releases free nitrogen radicals that are available to replace any nitrogen lost by gallium nitride molecules through disassociation. The resulting compacts are substantially free of gallium metal, voids, or contaminants, and have a density exceeding 75% of theoretical maximum density.