Abstract: A mechanically-interlocked decorative column assembly, and methods for forming such a column assembly without the use of adhesives. The column assembly includes at least first and second panel members that may be joined together form a column. Each panel member may be formed from extruded from cellular foam polyvinyl chloride (PVC) material. First and second interlocking structures provided on the first and second panel members, respectively, engage to maintain the panel members in the assembled condition during the service life of the column assembly, without the need for adhesives.

Abstract: In a first aspect, an apparatus adapted to clean a semiconductor device manufacturing component is provided. The apparatus includes an ozone module adapted to (1) obtain Ozone; (2) combine the Ozone with a fluid to generate ozonated fluid; and (3) deliver the ozonated fluid to the semiconductor device manufacturing component so as to clean the semiconductor device manufacturing component. Numerous other aspects are provided.

Abstract: In a GUI environment including a plurality of windows, a user may establish one or more groups of windows such that the windows comprising each group are related. The user may cycle focus successively between the windows in the group in response to a focus cycle command input by the user. The focus may cycle bidirectionally between the windows in the group in response to bi-directional focus cycle command inputs by the user. The user may shift focus to a window outside of the group by entering a focus shift command.