Abstract: Provided are sustained-release pharmaceutical compositions including a ketamine pamoate salt and a pharmaceutically acceptable carrier thereof. The compositions include aqueous suspension, solution and matrix delivery system, which can provide sustained release for anesthesia, analgesia or treatment of central nervous system and anti-inflammatory diseases.

Abstract: An optical proximity correction (OPC) device and method is provided. The OPC device includes an analysis unit, a reverse pattern addition unit, a first OPC unit, a second OPC unit and an output unit. The analysis unit is configured to analyze a defect pattern from a photomask layout. The reverse pattern addition unit is configured to provide a reverse pattern within the defect pattern. The first OPC unit is configured to perform a first OPC procedure on whole of the photomask layout. The second OPC unit is configured to perform a second OPC procedure on the defect pattern of the photomask layout to enhance an exposure tolerance window. The output unit is configured to output the photomask layout which is corrected.

Abstract: The present invention relates to a suitcase, including a case body and a plurality of wheel assemblies. The case body has a cuboid shape and includes a front portion, a rear portion, a plurality of top cylindrical projections, at least one bottom tubular projection, and four sidewalls. The rear portion is connected to the front portion. The top cylindrical projections are on the rear portion and protrude outwardly. The bottom tubular projection is on the rear portion and protrudes outwardly in the opposite direction of the top cylindrical projections. The sidewalls surround the bottom tubular projection. There is a space between the bottom tubular projection and the sidewalls. The wheel assemblies are connected to the case body by closely engaged the wheel assemblies to the top cylindrical projections, or by closely engaged the wheel assemblies in the space.

Abstract: The present invention relates to a suitcase, including a case body and a plurality of wheel assemblies. The case body has a cuboid shape and includes a front portion, a rear portion, a plurality of top cylindrical projections, at least one bottom tubular projection, and four sidewalls. The rear portion is connected to the front portion. The top cylindrical projections are on the rear portion and protrude outwardly. The bottom tubular projection is on the rear portion and protrudes outwardly in the opposite direction of the top cylindrical projections. The sidewalls surround the bottom tubular projection. There is a space between the bottom tubular projection and the sidewalls. The wheel assemblies are connected to the case body by closely engaged the wheel assemblies to the top cylindrical projections, or by closely engaged the wheel assemblies in the space.