Abstract: Barrier units and articles made therefrom, particularly constraining bands of high strength and low weight for containing articles, especially in blast resistant container assemblies, are disclosed. The barrier unit comprises a surface having a regular polygonal perimeter with a plurality of substantially parallel sides, each of which terminates in at least one loop integral with the surface. The surface comprises at least one network of high strength fiber with at least about 50 weight percent of the fiber comprising substantially contianuous lengths of fiber aligned in the hoop direction of the loops. The barrier units have utility as constraining bands for loads of articles like logs, and as doors/closures for access openings to the interior of aircraft blast resistant cargo containers. They are also useful as fences and window protectors.

Abstract: The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity.

Abstract: A process for the formation of structures in microelectronic devices such as integrated circuit devices. Vias, interconnect metallization and wiring lines are formed using single and dual damascene techniques wherein dielectric layers are treated with a wide electron beam exposure.

Abstract: The present invention is a method and apparatus for implementing in embedded software the functionality of one or more external user interface circuits either in a surface mountable integrated circuit or in the main system CPU of a telecommunication unit.

Abstract: An environmental control system includes a turbomachine and an air cycle machine that is driven by shaft power of the turbomachine. The turbomachine includes a compressor, which supplies compressed bleed air to the air cycle machine. Ambient air is compressed by the compressor, and heat of compression is removed by an air-to-air heat exchanger, which envelops the turbomachine. The cooled, compressed air is expanded in the air cycle machine to produce a stream of cooled, conditioned air. Ambient air used by the air-to-air heat exchanger to cool the compressed bleed air is drawn into the turbomachine's exhaust by an eductor.

Abstract: A method and device for using a single antenna for simultaneously receiving radio frequency signals in a first radio frequency band and radio signals in a second radio frequency band different from the first radio frequency band.

Abstract: A system for testing a hardware unit containing sensitive information, while inhibiting access to that information, includes a secure program in an Automated Test Station and an interface circuit. The test station has a programmed processor, as well as generating equipment which generates pseudo test signals and measuring devices which measure the response of the unit to actual test signals. Within the processor of the test station there is a test program which does not indicate the sensitive information and a run-time program that interprets the test-program to generate encoded commands for carrying out the test. The interface circuit receives the encoded commands and the pseudo test signals from the test station, decodes the encoded commands and generates the actual test signals. These actual test signals are routed to the unit under test by the interface circuit.

Abstract: A method for making a bimetallic ring seal having a nickel core covered by a first layer of platinum having a inner dense portion and a second outer portion both of which plastically deform in the presence of a load. The method includes the step of applying a porous layer of platinum over the dense layer by electroless plating in a platinum bath comprising 0.8-1.2 gram/liter platinum as diammine dinitrite salt Pt(NH3)2(NO2)2, 50-100 milliliter/liter of 25% ammonium hydroxide NH4OH; and 0.3-1.5 gram/liter hydrazine hydrate N2H4—H2O, at a temperature in the range of 75-90° C. and at a plating rate in the range of 0.5-3.0 micron/hour and then plastically deforming the ring seal under load.

Abstract: An ultra-efficient multilobal cross-sectioned fiber filter for chemical contaminant filtering applications is described. An absorptive chemically reactive reagent, preferably an acid or base and in liquid or an adsorptive chemically reactive reagent (an acid or base) in solid form, is disposed within longitudinal slots in each length of fiber. The reagent may be used alone or in conjunction with solid adsorptive particles which may also be utilized with the reagents in the longitudinal slots within the fibers. Reagents within the fibers remain exposed to a base-contaminated airstream passing through the filter. Base contaminants in the airstream, chemicals such as ammonium and amines (as well as particles), react with the acid reagent within the longitudinal slots of the fibers. As the contaminant and reagent react, the ammonium or amine becomes irreversibly absorbed (or adsorbed if reagent is a solid acid) to the liquid acid reagent and multilobal fiber.

Abstract: A polymeric low dielectric constant solution includes a low dielectric constant polymer dissolved in an aromatic aliphatic ether solvent. The polymer preferably is a poly(arylene ether) and the solvent preferably is anisole, methylanisole, phenetole or mixtures thereof. A process for forming a dielectric film on a substrate by spin-coating the polymeric solution is also provided.

Abstract: In order to provide the pilots with a display or a map of the terrain below the aircraft, a display is generated on a cockpit display, such as a weather radar, of the contours of the terrain below the aircraft. The terrain contour display is generated from aircraft position information, a terrain data base, and a terrain awareness envelope defined by awareness boundaries. Terrain contours are depicted with the highest terrain within the envelope colored red, high intermediate terrain contours in yellow with varying dot densities, low intermediate terrain contours in green with varying dot densities, and the lowest terrain in black. The green contours can be overwritten with a low density yellow based on a pre-caution envelope which extends certain of the awareness boundaries to provide notice to a pilot of upcoming cautions.

Abstract: A foil bearing assembly for use in a gas turbine engine is provided. The assembly includes an annular bearing carrier mounted to the housing of the engine. An annular foil carrier disposed within the bearing carrier and carrying a plurality of overlapping foils that engage an outer surface of a journal. The journal is mounted to the rotating assembly of the engine to define a cavity. Disposed in the cavity is a showerhead having an inlet for receiving a flow of cooling air and a plurality of orifices for providing impingement cooling of the inner surface of the journal. The use of a showerhead in a thrust foil bearing is also disclosed.

Abstract: Anti-reflective coating materials for deep ultraviolet photolithography include one or more organic dyes incorporated into spin-on-glass materials. Suitable dyes are strongly absorbing over wavelength ranges around wavelengths less than 260 nm such as 248 nm and 193 nm, that may be used in photolithography. A method of making dyed spin-on-glass materials includes combining one or more organic dyes with alkoxysilane reactants during synthesis of the spin-on-glass materials.

Abstract: An injection tube for connecting a plenum to a combustion chamber includes a first mouth having a longitudinal axis and adapted for insertion into a cold plenum port or other component and a second mouth having a longitudinal axis and adapted for insertion into a hot chamber port or other component. To accommodate flexural, axial and torsional forces caused by differential thermal expansion between the two components, the mouths of the tube are configured to have multiple degrees of freedom within each corresponding port while maintaining port-mouth seal integrity. In an illustrative embodiment, the first mouth outer surface shape allows free slip of the first mouth parallel to the first mouth longitudinal axis, as well as rotation of the first mouth about both the first mouth longitudinal axis and a first mouth outer surface transverse axis. Mounted on the outer surface of the tube is a rocker arm adapted to engage a pivot mounted on the chamber outer surface or to engage the chamber outer surface itself.

Abstract: The invention provides improved release agents used in processes for preparing molded lignocellulosic articles. The release agents are preferably applied as an emulsion in processes for preparing molded articles such as oriented strand board, waferboard or plywood. The release agents contain a co-oxidized blend of a first wax and a second wax, wherein the first wax has a Brookfield viscosity which is at least about 150 mPas at 140° C. and the second wax has a Brookfield viscosity which is less than about 100 mPas at 140° C.

Abstract: An AMEL display is formed and operated in a manner to provide enhanced gray scale or color operation. The AMEL display is operated over consecutive illumination frames which are partitioned into a plurality of passes. The desired illumination intensity for a given pixel during each illumination frame is determined and the pixel is activated for a substantially equal duration in each pass to provide the desired illumination level for each frame. Each pass has an associated illumination profile signal composed of a plurality of discrete steps for selectively passing a number of illumination pulses to each active EL cell in the display in accordance with a pixel activation voltage loaded into each active EL cell. The pixel activation voltage and illumination profiles cooperate to distribute the number of illumination pulses in a substantially equal fashion in each pass of an illumination frame. Pixel driver circuits are disclosed for operating the pixel in accordance with the disclosed illumination methods.

Abstract: A variable geometry system for a turbocharger includes a sliding piston disposed within a turbine housing between a primary exhaust gas volute and turbine blades. The sliding piston is axially displaceable within the turbine housing to increase or decrease the volumetric flowrate of exhaust gas to the turbine. The sliding piston is positioned by an actuator having reciprocating movement translated through a rotating sleeve with a first pin engaging a helical slot for axial motion of the piston and a second pin engaging an alignment slot for maintaining axial alignment of the piston.

Abstract: A turbocharger with an integral Exhaust Gas Recirculation system for an internal combustion engine having a compressor rotor with two sets of vanes on opposite sides of the rotor disk for compression of charge air and recirculated exhaust gas. The charge air and recirculated exhaust gas streams are segregated in the turbocharger and an inlet and an outlet volute for the recirculated exhaust gas is integral with the turbocharger center housing. A variable geometry turbine inlet is provided for exhaust backpressure and fuel air mixture control and an integral exhaust gas bypass for recirculating EGR is controlled by an integral valve mounted with the turbine housing.

Abstract: A hazard alert device for aircraft prioritizes various alerts according to predefined criteria. The device enables more optional alerting of hazardous conditions than a system of separate independent and discrete devices.

Abstract: In the synthesis of 1,1,1,3,3-pentafluoropropane (R-245fa), a mixture of R-245fa and the impurity 1-chloro-3,3,3-trifluoropropene (R-1233zd) is purified and R-1233zd is removed from the mixture by contacting the mixture with 1-5 mols of chlorine for each mol of R-1233zd in the presence of ultraviolet light having a wavelength between about 300 to 400 nm which provides at least 0.02 watts-hour/kg of the mixture, the R-1233zd being reduced to below 10 wt. ppm or lower, as it is converted to 1,2,2-trichloro-3,3,3-trifluoropropane (R-233) or other propane which contains more chlorine and which has a higher boiling point than R-245fa and can be separated easily from R-245fa, the photochlorination being effected in a manner such that at least about 96 wt. % of the starting amount of R-245fa is maintained in the mixture.