Abstract: Methods and systems are provided for reducing NOx emissions from a gas stream produced by a production source. The method may comprise oxidizing a substantial portion of NO gas present in the gas stream by contacting the gas stream with an oxidation catalyst to yield higher order NxOy molecules; and thereafter removing higher order NxOy molecules from the gas stream by solvent absorption or reaction. The system may comprise a gas production source configured to produce a gas stream comprising NOx; an oxidation catalyst positioned downstream of the gas production source, wherein the oxidation catalyst is configured to oxidize NO gas molecules in the gas stream to yield higher order NxOy molecules; and a removal device positioned downstream of the oxidation catalyst configured to remove higher order NxOy molecules from the gas stream by solvent absorption or reaction.

Abstract: A method of recognizing states and locations of user equipment in a network by using a random access (RA) channel at a base station without alteration of the conventional network environment or configurations of user equipment. A mobile communication system of an embodiment includes a first base station; and one or more second base stations having service regions smaller than a service region of the first base station. The first base station is operable to broadcast configuration information to the user equipment for connecting to at least one of the one or more second base stations. The user equipment is operable to transmit an uplink signal to at least one of the one or more second base stations in accordance with the configuration information received from the first base station, and at least one of the one or more second base stations is operable to transmit information on the user equipment that transmitted the uplink signal to the first base station after receiving the uplink signal.

Abstract: The present invention are methods for and products having an elemental sulfur matrix. The matrix is formed by using an amount of shear force on molten elemental sulfur, where the molten sulfur is combined with a matrix forming material.

Abstract: A process is described for separating SO.sub.2 from a current of gas containing the same, at least intermittently, in a concentration which is impermissibly high for discharge into the ambient atmosphere, with attendant production of sulfuric acid by the nitrogen oxide process, in which latter process the SO.sub.2 -containing gas initially flows through a dentriation zone, or first through a pretreatment zone forming a first sector of an SO.sub.2 -processinbg zone and then through the denitration zone, thereafter through the main sector of the SO.sub.2 -processing zone, and subsequently through a nitrogen oxide absorption zone, in the course of which flow it is brought into contact in at least one of the two sectors of the SO.sub.2 -processing zone with dilute acid having a H.sub.2 SO.sub.4 -concentration of less than 70% by weight (55.degree.

Abstract: A process is described for separating SO.sub.2 from a moist current of gas containing the same, at least intermittently, in a concentration which is impermissibly high for discharge into the ambient atmosphere, with attendant production of a strong sulfuric acid by the nitrogen oxide process in a system of reaction zones, in which system the SO.sub.2 -containing gas flows successively through a denitration zone, thereafter through the SO.sub.2 -processing zone, and subsequently through a nitrogen oxide absorption zone, in the course of which flow it is brought into contact, at least in the SO.sub.2 -processing zone, with dilute acid having an H.sub.2 SO.sub.

Abstract: The effluent streams from utility stack gases containing nitric oxides and sulfur dioxide are entrained with sulfuric acid and carbon monoxide from refinery cracking and other industrial plants and in a sequence of separation and reaction steps nitrogen and carbon dioxide are vented to the atmosphere and regenerated concentrated sulfuric acid and sulfur produced.