Abstract: The present invention describes articles comprising a substrate including opposed front and back surfaces, wherein the front surface and the back surface each comprise surface structures that are randomly oriented on each surface, wherein the front surface and the back surface each have a surface roughness and a gloss value, and wherein the surface roughness of the front surface does not equal the surface roughness of the back surface and/or the gloss value of the front surface does not equal the gloss value of the back surface. Display system stacks utilizing the described articles are also provided.

Abstract: The present invention describes articles comprising a substrate including opposed front and back surfaces, wherein the front surface and the back surface each comprise surface structures that are randomly oriented on each surface, wherein the front surface and the back surface each have a surface roughness and a gloss value, and wherein the surface roughness of the front surface does not equal the surface roughness of the back surface and/or the gloss value of the front surface does not equal the gloss value of the back surface. Display system stacks utilizing the described articles are also provided.

Abstract: A luminaire includes a support member and a light assembly. The support member includes a first end and a second end, and defines a longitudinal axis extending therebetween. The support member defines a center portion extending along the longitudinal axis. The light assembly includes at least one board supporting at least one light emitting element. The board is coupled to the center portion of the support member and oriented parallel to the longitudinal axis.

Abstract: A NOx removal system for a furnace or boiler with an economizer has two separate ammonia injection grids (AIG) upstream of an SCR. A primary AIG is positioned adjacent the flue gas outlet of the economizer and upstream of an economizer bypass outlet. A secondary AIG is located within an economizer flue gas bypass. The separate AIGs permit a reduction in the overall length of the flue between the economizer and SCR, thereby reducing the NOx removal system footprint, cost and quantity of materials.

Abstract: An isolated DNA encoding a keratinase is disclosed. The isolated DNA may be any of (a) isolated DNA which encodes the Bacillus licheniformis PWD-1 keratinase enzyme of FIG. 1, (b) isolated DNA which hybridizes to an oligonucleotide probe, which hybridizes to the DNA of (a) above, and does not hybridize to DNA encoding the Bacillus licheniformis NCIB 6816 subtilisin Carlsberg serine protease, and (c) isolated DNA differing from the isolated DNAs of (a) and (b) above in nucleotide sequence due to the degeneracy of the genetic code, and which encodes a keratinase enzyme.