Abstract: The disclosed computer-implemented method may include applying, via a sound reproduction system, sound cancellation that reduces an amplitude of various sound signals. The method further includes identifying, among the sound signals, an external sound whose amplitude is to be reduced by the sound cancellation. The method then includes analyzing the identified external sound to determine whether the identified external sound is to be made audible to a user and, upon determining that the external sound is to be made audible to the user, the method includes modifying the sound cancellation so that the identified external sound is made audible to the user. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A wind chime has a suspension system for suspending a plurality of chimes, a central cord that suspends a clapper adjacent the chimes, and a silencer slidably mounted on the central cord. The silencer includes a plurality of chime apertures radially spaced from a center area adjacent an outer perimeter, each sized and shaped to receive one of the plurality of chimes. The central cord extends through the silencer to a clapper. An adjustable locking mechanism is mounted on the central cord between the silencer and the clapper, for locking the silencer in either a silenced position wherein the main body is positioned inside of the plurality of chimes with each of the chimes being positioned within one of the chime apertures, and a stored position wherein the main body is positioned above the chimes.

Abstract: An improved piston ring for use as an intermediate piston ring in a piston assembly having three or more piston rings is provided. The piston ring includes a piston ring body which extends through an arcuate shape between opposite end faces. The piston ring body has at least one combustion gas guidance feature for allowing a greater flow of combustion gasses to pass the piston ring body when the piston is moving in one direction and for allowing a lesser flow of combustion gasses to pass the piston ring body when the piston is moving in an opposite direction. This allows for the ring gap at the outer diameter of the piston ring to be minimized without creating flutter in another piston ring above the intermediate piston ring during operation of an engine.

Abstract: An all terrain vehicle with a low profile low friction seat support is described. The vehicle includes a rail in a longitudinal direction of the vehicle and a seat support with a top member and a bottom member. The seat support is adapted for securing on the rail, and the seat support is adjustable in position in the longitudinal direction of the vehicle. A lock is provided for releasably locking the seat support in a forward position, a rearward position and therebetween. A low friction support member is positioned between the top and bottom members. At least two channels are formed in the top member. One of the channels matches the shape of the support member, and the other channel matches the shape of the rail for close registration between the top member and the support member and the rails. The seat support is highly compartmentalized, sturdier, and safer for vehicle occupants.

Abstract: An improved piston ring for use as an intermediate piston ring in a piston assembly having three or more piston rings is provided. The piston ring includes a piston ring body which extends through an arcuate shape between opposite end faces. The piston ring body has at least one combustion gas guidance feature for allowing a greater flow of combustion gasses to pass the piston ring body when the piston is moving in one direction and for allowing a lesser flow of combustion gasses to pass the piston ring body when the piston is moving in an opposite direction. This allows for the ring gap at the outer diameter of the piston ring to be minimized without creating flutter in another piston ring above the intermediate piston ring during operation of an engine.

Abstract: An all terrain vehicle with a low profile low friction seat support is described. The vehicle includes a rail in a longitudinal direction of the vehicle and a seat support with a top member and a bottom member. The seat support is adapted for securing on the rail, and the seat support is adjustable in position in the longitudinal direction of the vehicle. A lock is provided for releasably locking the seat support in a forward position, a rearward position and therebetween. A low friction support member is positioned between the top and bottom members. At least two channels are formed in the top member. One of the channels matches the shape of the support member, and the other channel matches the shape of the rail for close registration between the top member and the support member and the rails. The seat support is highly compartmentalized, sturdier, and safer for vehicle occupants.

Abstract: Process for producing acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in at least one carbonylation reaction zone containing a liquid reaction composition containing an iridium carbonylation catalyst, methyl iodide co-catalyst, a finite concentration of water, acetic acid, methyl acetate. Indium and rhenium are present as promoters.

Abstract: Catalyst system for the production of acetic acid comprising a rhodium carbonylation catalyst, methyl iodide and at least one heteropolyacid promoter.

Abstract: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of a promoted iridium carbonylation catalyst wherein the promoters are boron and gallium.

Abstract: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of a promoted iridium carbonylation catalyst wherein the promoters are indium and rhenium.

Abstract: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of an iridium promoted carbonylation catalyst wherein the promoters are ruthenium and at least one of niobium and tantalum.

Abstract: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of an iridium promoted carbonylation catalyst wherein the promoters are ruthenium and at least one of niobium and tantalum.

Abstract: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in the presence of a promoted iridium carbonylation catalyst wherein the promoters are boron and gallium.

Abstract: A process and catalyst for the production of acetic acid by the carbonylation of methanol and/or a reactive derivative thereof wherein the catalyst system comprises a rhodium carbonylation catalyst, methyl iodide, a non-hydrohalogenoic acid promoter and optionally a co-promoter capable of generating ionic iodide.