Abstract: A fuel cell apparatus including fuel cell blocks electrically re-configurable in at least two arrangements by a control module.

Abstract: A projection screen includes a light absorbing substrate having a plurality of alternating crests and recessed portions. A light reflecting layer is established on the light absorbing substrate such that a receding portion is established on each of the recessed portions and a conformal portion is established on each of the crests. Each of the plurality of crests has a surface at which the light absorbing substrate is exposed.

Abstract: A fuel cell assembly in accordance with a present invention includes at least one reactant path that extends at least once around the perimeter of the inner region of the assembly and has an upstream end associated with the outer region of the assembly and a downstream end associated with the inner region.

Abstract: Embodiments of a sensor array are disclosed.

Abstract: Subject matter includes a fuel cell with a catalytic combustor seal and related methods. The catalytic converter is positioned to come in contact with a fuel after the fuel has traversed a path over an intended electrode and the fuel is catalytically converted before the fuel can come in contact with an unintended electrode.

Abstract: A method of operating a fuel cell includes supplying a gas stream to the fuel cell and oscillating the gas stream.

Abstract: Embodiments of a security device utilizing electrochromic material are disclosed.

Abstract: A MEMS-based fuel cell has a substrate, an electrolyte in contact with the substrate, a cathode in contact with the electrolyte, an anode spaced apart from the cathode and in contact with the electrolyte, and an integral manifold for supplying either a fuel or an oxidant or both together, the integral manifold extending over at least a portion of the electrolyte and over at least one of the anode and cathode. Methods for making and using arrays of the fuel cells are disclosed.

Abstract: Photonic crystal structures are made by a method including steps of providing a substrate, depositing at least one planar layer to form a stack, each planar layer of the stack comprising two or more sublayers having different sublayer refractive indices, depositing a hard mask material, depositing an imprintable material over the hard mask material, patterning the imprintable material by imprinting an array of depressions, and directionally etching at the depressions a regular array of openings through the hard mask material and the stack.

Abstract: A fuel cell includes at least one electrode operatively disposed in the fuel cell, and having a catalytically active surface. The present invention further includes a mechanism for maintaining a substantially uniform maximum catalytic activity over the surface of the electrode.

Abstract: A method for elevating a temperature within a fuel cell having a cathode, an electrolyte and an anode, includes, prior to the electrolyte reaching a minimum temperature at which oxygen ions cross the electrolyte, conducting an exothermic reaction at the cathode or the anode to elevate the temperature within the fuel cell.

Abstract: A fuel cell includes at least one electrode operatively disposed in the fuel cell, and having a catalytically active surface. The present invention further includes a mechanism for maintaining a substantially uniform maximum catalytic activity over the surface of the electrode.

Abstract: In accordance with the present disclosure, a rack equipment mount with a self-locating/self-adjusting rear fastener mechanism is disclosed. The equipment mount can have a first rail and a second rail securable horizontally in a rack system, wherein self-locating fasteners or receivers can be slidably connected to the rails. Rack mountable equipment to be inserted into the rack can have a mating fastener attached to the rear of its chassis and the self locating fasteners can engage with the mating fasteners as the chassis is slid into the rack. The self-locating fastener can be spring loaded in a forward position and slide along the rail to self-locate at the appropriate depth when a chassis is inserted into the rack. The self-locating fasteners allow equipment chassis of varying depths to be installed into a rack and easily secured at the rear of the rack.

Abstract: Methods, computer program products, and electronic devices are provided for managing sound in a plurality of computer-executed applications. One method includes: operating a sound manager function to provide a user with an option to selectively mute up to n?1 applications of n applications, where n>1; and in response to the user choosing to selectively mute up to n?1 applications, the sound manager function selectively muting the up to n?1 applications. Another method includes providing a user with an option to selectively mute up to n?1 applications of n applications, where n>1. In response to the user choosing to selectively mute up to n?1 applications, at least one action is performed in response to requests to play sounds by the selectively muted applications so that the sounds are muted with respect to a sound device.

Abstract: The invention concerns methods and apparatus for generating and controlling a slider control for simultaneously changing values of two variables. In the methods and apparatus of the invention a graph having two axes is displayed, wherein the axes correspond to first and second variables. The values of the first and second variables may be simultaneously adjusted using a slider control displayed in a two-dimensional region between the axes. As a user adjusts the slider control and changes values associated with the two variables, the methods of the present invention calculate the effects of the adjustment on a value of a third variable. A graphical component is then used to depict the updated value of the third variable. Additionally, curves corresponding to constant values, or ranges of values, of the third variable are displayed in the two-dimensional region to assist a user in selecting values for the first and second variables.

Abstract: A method, apparatus, and computer-usable medium for computing a serviceability assessment, calculating a preventative maintenance assessment, and in response to computing the serviceability and preventative maintenance assessments, computing a projected service cost assessment. A preferred embodiment of the present invention includes a processor, a data bus, and a computer-readable medium including a serviceability assessment tool. The serviceability assessment tool further includes a serviceability assessment module, a hardware installation assessment module, a preventative maintenance assessment module, and a projected service cost assessment module.

Abstract: Photonic crystal structures are made by a method including steps of providing a substrate, depositing at least one planar layer to form a stack, each planar layer of the stack comprising two or more sublayers having different sublayer refractive indices, depositing a hard mask material, depositing an imprintable material over the hard mask material, patterning the imprintable material by imprinting an array of depressions, and directionally etching at the depressions a regular array of openings through the hard mask material and the stack.

Abstract: A low profile cam latch assembly is provided for use installation and removal of associated components into a rack or chassis. An elongated cam arm and a mating retainer are fixedly mounted to an associated component. The elongated cam arm includes a pivot mounted trigger member releasably engaged with the mating retainer to retain or lock the cam arm in a closed position. The elongated cam arm includes a recessed hook shape defined together with an outwardly extending finger grip with the cam are rotated out in an open position. The finger hook shape and finger grip are arranged for engagement by a thumb or finger of a user for removal of the associated component.

Abstract: Optical property normalization for a transparent electrical device is described. In an embodiment, an electrical device includes a plurality of laterally displaced regions that are substantially transparent. Each region of the plurality of regions includes a normalized surface that has an optical property that has a normalized value that is substantially the same, one to another. One of the regions includes a portion of an electrical component. Additionally, at least one of the regions includes beneath the normalized surface an additional surface and a spectral normalization structure. The additional surface has a value for the optical property that is not substantially the same as the normalized value. The spectral normalization structure is disposed with the additional surface such that the normalized surface of the at least one region exhibits the normalized value.

Abstract: Various embodiments of a display including a near UV light source, a photo luminescent material and a polymer dispersed liquid crystal sandwiched there on a bitch between having liquid droplets with a diameter of less than or equal to about 800 nm are disclosed.