Abstract: Disclosed is a composition comprising (a) one or more compounds selected from the compound of Formula 1 insert Formula 1 here and salts, esters and thioesters thereof, coated on or impregnated into (b) a granular substrate material. The composition is particularly useful for controlling weeds in turf comprising warm-season turfgrasses without causing significant injury to the turfgrasses. Also disclosed is a method for controlling weeds in turf comprising a warm-season turfgrass without causing significant injury to the turfgrass, the method comprising applying a herbicidally effective amount of the composition to the turf.

Abstract: A hoop stress relief mechanism is disclosed for use on a rotary body to relieve stress caused by both thermal and centrifugal forces. The mechanism may consist of a J-shaped slot cut from the outer rim of the rotary body a distance inwardly toward the axis of rotation, the slot having a curve in its inward end that curves back towards the outer rim. The J-shaped slot may extend through the rotary body to join its two faces. The J-shaped slot may be fabricated by an electric discharge wire machine. The electric discharge wire machine may make multiple passes in order to smooth the bottom surface of the curved slot portion.

Abstract: A method for combined effusion and thick TBC cooling comprises a providing a substrate, depositing a thick TBC onto the substrate and laser drilling an array of effusion holes through the TBC coated substrate. The thick TBC has a columnar crack structure, which gives compliance and spall resistance. The microstructure of the segmentation microcracked TBC reduces cracking and chipping of the TBC during effusion hole laser drilling.