Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The CTSA is regenerated using an inert gas to prevent an explosive mixture of hydrogen and oxygen from occurring.

Abstract: Tire traction is dynamically increased in a vehicle by performing a sequence of steps. First, a center of mass of the body of the vehicle is raised by a predetermined amount above a base level by using an active element of a controllable suspension to generate the positive forces in response to a first signal from a suspension controller. Second, the suspension controller receives a trigger after the center of mass of the body of the vehicle is raised by the predetermined amount above the base level. Third, at least some of the generated positive forces of the active element are removed upon receipt of the trigger in response to a second signal from the suspension controller. The removal of the at least some of the generated positive forces of the active element results in the center of mass of the body of the vehicle dropping back towards the base level and increasing a load on the controllable suspension, thereby dynamically increasing tire traction.

Abstract: A system and a computerized method are disclosed that each include or cause performance of various computerized operations. The computerized operations include receiving user input corresponding to product information corresponding to a retail item searched for via a network device, performing pre-processing operations on the product information, querying one or more data stores to obtain potential buying options corresponding to the searched-for retail item, wherein each of the one or more data stores house information corresponding to a preferred supplier, analyzing query results based on at least on proprietary, organization-specific procurement rules to determine at least one recommended buying option, and causing the rendering of at least a portion of a graphical user interface on the network device that displays the at least one recommended buying option. The user input may be received by a web browser plug-in processing on the network device.

Abstract: Disclosed is a process for making a linear low density polyethylene (LLDPE) having low gels. The process comprises copolymerizing ethylene with one or more C3-10 ?-olefins to produce an LLDPE resin which has a gel defect area less than 25 ppm. The copolymerization is performed in the presence of a Ziegler-Natta catalyst which comprises an MgCl2 support, a Ti(IV) complex, and a cyclic ether as an internal electron donor. The Ziegler-Natta catalyst has an Mg/Ti molar ratio greater than or equal to 7.

Abstract: Disclosed is a process for making a linear low density polyethylene (LLDPE) having low gels. The process comprises copolymerizing ethylene with one or more C3-10 ?-olefins to produce an LLDPE resin which has a gel defect area less than 25 ppm. The copolymerization is performed in the presence of a Ziegler-Natta catalyst which comprises an MgCl2 support, a Ti(IV) complex, and a cyclic ether as an internal electron donor. The Ziegler-Natta catalyst has an Mg/Ti molar ratio greater than or equal to 7.

Abstract: Disclosed is a method for making LLDPE grades having different xylene solubles or hexane extractables with the same Ziegler-Natta catalyst by varying the amount of alkylaluminum used for polymerization. The method comprises copolymerizing ethylene with a C3-10 ?-olefin in the presence of a Ziegler-Natta catalyst, an alkylaluminum, and an electron donor; determining the dependency of the xylene solubles or hexane extractables on the alkylaluminum/electron donor ratio; and adjusting the alkylaluminum/electron donor ratio to achieve a desired xylene solubles or hexane extractables.

Abstract: A method and apparatus for operating a pressure vessel containing a bed of particulate material comprising substantially leveling the bed and employing a plug-flow inducer in the bed.

Abstract: A method and apparatus for operating a pressure vessel containing a bed of particulate material comprising substantially leveling the bed and employing a plug-flow inducer in the bed.