Abstract: A method for pre-shaping a major surface (21,22) of a semiconductor wafer (20) in preparation for polishing includes shaping the major surface (21,22) so that it has a concave shape. In a preferred method, an etching process is used to form the concave shape. The concave shape provides a starting wafer that is extremely flat after polishing.

Abstract: An improved sulfur trap for the sulfur level reduction of a reformer feed leaving a hydrofiner to render it suitable for use in a reforming unit employing a sulfur-sensitive reforming catalyst. The nickel catalyst contained in said sulfur trap is one wherein the average crystallite size of the nickel is at least about 75.ANG., and at greater than 50 percent of the nickel is in reduced state, based on the total weight of the supported component.

Abstract: A process wherein a magnetic iron precursor component characterized as the mineral ilmenite, FeTiO.sub.3, particularly the natural mineral ilmenite, FeTiO.sub.3, is incorporated within a refractory inorganic oxide particulate mass, notably alumina, silica, silica-alumina, aluminosilicate or precursor thereof, which serves as a matrix. The mineral can be prereduced and then formed into a composite, or said mineral can be dispersed as an inclusion, or inclusions, and the particulate composite mass then treated in a reducing atmosphere to form oriented, laminar layers of reduced iron metal intimately dispersed throughout said particulate composite mass.

Abstract: A prefabricated, fully adjustable, modular article display system is provided which not only gives the appearance of a built-in, customized design but also may be installed against a wall surface in hiding relationship thereto so that overall finishing of the wall prior to installation of the display units is obviated. This significantly reduces the costs which a property owner or leaseholder must pay for finishing the interior of a retail area in which the units are used. The system is made up of a number of display modules each having a pair of upright, slotted standards which rest on the floor adjacent the wall and that are held thereagainst by clips on the standards which interlock with a Z-shaped tie bar adapted to be secured to the wall. A cantilever mounted valance and soffit assembly adjustably carried by each pair of standards immediately below the ceiling has illuminating means therein for directing light onto the displayed articles therebelow.