Abstract:
A sulfur scrubber structure is operable to remove substantially all of the sulfur present in an undiluted oxygenated hydrocarbon fuel stock supply for a fuel cell power plant assembly which is used to power an engine in a mobile environment, such as an automobile, bus, truck, boat, or the like, or in a stationary environment. The fuel stock can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, and the like. The undiluted hydrocarbon fuel supply is passed through a nickel reactant desulfurizer bed (2) wherein essentially all of the nickel reactant in the scrubber bed reacts with sulfur in the fuel stream, whereby the nickel reactant is converted to nickel sulfide, while the desulfurized organic remnants of the fuel stream continue through the remainder of the fuel processing system. The desulfurizer bed can be formed from a highly porous ceramic or metallic foam monolith, the pores (6) of which are coated with a nickel reactant. The foam monolith can be formed from elemental nickel per se. The use of the high surface area porous foam monolith enables essentially 100% of the nickel reactant to come into contact with the fuel stream being desulfurized.
Abstract:
A class of pyrazole derivatives is described for use in treating p38 kinase mediated disorders. Compounds of particular interest are defined by Formula IA wherein R1, R2, R3 and R4 are as described in the specification.
Abstract:
Novel tubulin binding compounds (SPIKETS) having potent tubulin depolymerization activity and inhibitory activity against tubulin polymerization. The compounds are effective agents for inhibiting cellular proliferation, for example, in cancer cells. The compounds are adapted to interact favorably with a novel SP binding pocket on tubulin, which pocket is useful for screening of anti-tubulin, anti-proliferation, and anti-cancer drugs.
Abstract:
A fuel processing method is operable to remove substantially all of the sulfur present in an undiluted oxygenated hydrocarbon fuel stock supply which contains an oxygenate and which is used to power a fuel cell power plant in a mobile environment, such as an automobile, bus, truck, boat, or the like, or in a stationary environment. The power plant hydrogen fuel source can be gasoline, diesel fuel, or other like fuels which contain relatively high levels of organic sulfur compounds such as mercaptans, sulfides, disulfides, and the like. The undiluted hydrocarbon fuel supply is passed through a desulfurizer bed wherein essentially all of the sulfur in the organic sulfur compounds reacts with the nickel reactant, and is converted to nickel sulfide, while the now desulfurized hydrocarbon fuel supply continues through the remainder of the fuel processing system.
Abstract:
An improved magnetic read/write head actuator assembly for use within a storage disk system that reduces average access time. The actuator assembly includes an actuator arm mounted on pivotal hub. A read/write head is supported at a distal end of the actuator arm such that the head is positioned in close proximity to a rotating magnetic storage disk. An actuator motor cooperates with the actuator arm to provide pivotal motion to the actuator arm about a central pivot axis. The actuator motor includes an asymmetric rotor winding connected to the actuator arm at an end opposite the distal end and an asymmetrical stator magnet structure that is statically mounted in close proximity to the asymmetric rotor winding. The actuator motor, further includes a flux conductive member that forms a closed flux path through the rotor winding and the asymmetrical stator magnet structure. The asymmetric geometry of the stator magnet structure generates an increased magnetic field strength and magnetic field density in a region of the magnet structure that comprises a greater portion of magnetic material. Therefore, when the asymmetric rotor winding reacts with the region of the stator magnet that has the greater portion of magnetic material, an increased torque vector force is realized by the asymmetric rotor winding. The increased torque vector force realized by the rotor is transposed to the actuator arm for increasing the pivotal speed of the actuator arm about the central pivot axis during access of outer diameter tracks of a magnetic storage disk.
Abstract:
An allocation method comprises: partitioning moderate memory into a plurality of physical memory pages having predetermined page size according to the predetermined page size; scanning the moderate memory using the predetermined page size and recording the physical address and damage degree of each physical memory page; obtaining the allocation information of the physical memory pages when a memory request is received and allocating physical memory to the request based on the recorded physical address and damage degree of each physical memory page and the obtained allocation information. A moderate memory is scanned and the physical address and damage degree of each physical memory page are recorded, then the physical memory is allocated based on the recorded physical address and damage degree of each physical memory page and the obtained allocation information.
Abstract:
Compounds and related methods for selective inhibition of neuronal nitric oxide synthase over inducible and endothelial isoforms, such compounds as can provide reduced cationic character and enhanced bioavailability.
Abstract:
Methods for clustering of multi-dimensional data allow unsupervised grouping of multi-dimensional data points into clusters having like characteristics. The methods may be usefully applied to extracellular action potentials (neuronal spikes) measured from the brain, whereby spike data may be grouped in accordance with dimensions such as spike period, spike shape, etc., to assist in identification and location of individual neurons and/or regions of the brain.
Abstract:
A method for managing blocks in a flash memory is provided, which includes dynamic and static block managing methods. In the dynamic block managing method, a blank block is selected as a swap block for write operation. During each write operation, new data and/or original data in an object block to be operated are written into the swap block, and the object block is erased. Then, a logical address of the object block is changed to be a logical address of the swap block, so that the object block served as the swap block for a next write operation. In the static block managing method, a variable seed parameter is set. Different values of the seed parameter are each associated with a logical address of a respective flash memory block. When the value of the seed parameter varies, data in the flash memory block and the swap block associated to the value of the seed parameter are exchanged, so that the flash memory block associated to the value of the seed parameter becomes the swap block for the next write operation.