Abstract: A method for generating electrical power may include the steps of rotating a rotor of a generator at a speed in excess of about 12,000 revolutions per minute (rpm) to about 25,000 rpm and producing power with the generator at a rate in excess of about 800 kilowatts (kW). The generator has a power/weight ratio no smaller than about 3 kW/lbs. A rotor is cooled with cooling oil internally circulated through the rotor of the generator so that contact of cooling oil with external surfaces of the rotor may be precluded. The stator is also cooled with oil that is prevented from contacting the external surfaces of the rotor. Pressurized airflow may be produced in a gap between the rotor and a stator of the generator to preclude entry of cooling oil into the gap.

Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position in the air inlet. The inlet-adjustment mechanism includes a variable-geometry orifice actuated by a rotatable actuator ring. In the closed position, the orifice's inner diameter is smaller than that of a shroud surface of the compressor housing and therefore dictates the effective inlet diameter for the compressor. In the open position the orifice no longer forms an inner diameter smaller than the shroud surface, so that the effective inlet diameter is determined by the shroud surface.

Abstract: A vertical profile display includes weather information for an aircraft. In some examples, the weather is displayed in the vertical profile display with a hazard band indication. The hazard band indication includes an upper limit line positioned within the vertical profile view at a position corresponding to an altitude greater than or equal to an altitude above which no hazardous weather cells were detected. In some examples, the vertical profile display also includes one or more weather icons, with each weather icon indicating a weather condition for a volume of space.

Abstract: Systems and methods for an antenna conformal to a sphere are provided. In certain implementations, an apparatus comprises a sphere having a recessed portion formed therein, the sphere enclosing instrumentation that produces a transmittable electronic signal; central conductor placed within the recessed portion, wherein the central conductor is coupled to the instrumentation to receive the transmittable electronic signal, wherein the transmittable electronic signal is emitted outside of the sphere; and an insulator cap located over the recessed portion, wherein locations on the external surface of the insulator cap and an external facing surface of the central conductor are substantially equidistant from a center point of the sphere.

Abstract: An apparatus for installing or replacing license software such as in a device or secure digital card of a controller. The apparatus may have a door that is situated in a base of the controller. The door may slide down to provide an opening that permits access to a place, an area or receptacle that holds the card. The door may not necessarily be open-able until the controller is removed from a panel, a din rail, or some other structure, where a removal of power has to occur. The door may be designed so that it blends in with the base in that just qualified installers are aware of how to find the door for access to the card. To close the door, the card needs to be fully installed before the door can be closed. The door may be designed with hook features to prevent its removal from the controller base.

Abstract: Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents.

Abstract: Systems, devices, and methods for access control via a mobile device are described herein. One method includes receiving location information associated with a mobile device in a facility, determining that the mobile device is within a particular distance of an area of the facility based on the location information, determining whether a user of the mobile device is allowed access to the area, and allowing access to the area via a relay associated with the area responsive to a determination that the user is allowed access.

Abstract: In some examples, a first delay path and a second delay path may each be configured to receive a signal as an input signal at the same time, propagate the input a plurality of MRAM cells, and output the propagated input signal for an arbiter. The arbiter may be configured to output a response value based at least in part on a relative order of arrival of the propagated input signals from the first and second delay paths.

Abstract: A method for removing lead-210 (210Pb) from a metal, the method comprising determining a 210Pb concentration in a metal to be refined; determining an amount of low alpha lead to be added to the metal to be refined from the 210Pb concentration, the low alpha lead having a 210Pb concentration below that of the metal to be refined; forming a doped metal mixture by adding the low alpha lead to the metal to be refined; refining the doped metal mixture to separate at least a portion of the lead in the doped metal mixture to form a refined metal having a 210Pb concentration lower than that of the metal to be refined.

Abstract: An electronic assembly may have a display, a display holder, and a printed circuit board (PCB). The display may have a front side for viewing the display, a back side, and side walls extending between the front side and the back side. The display holder may have a recess for receiving at least part of the display, where the display holder may extend adjacent part of the front side of the display and adjacent at least part of the side walls of the display. The PCB may be secured relative to the display holder and adjacent the back side of the display. The PCB may be in operative communication with the display. In some cases, a spacer may be situated between the back side of the display and the PCB.

Abstract: The present invention relates to mixtures of 1,1,1,4,4,4-hexafluorobutene (1336mzzm) and 1-chloro-3,3,3-trifluoropropene (1233zd). The blends are useful as blowing agents for polymer foam, solvents, aerosol propellants and heat transfer media.

Abstract: An attitude and heading reference system (AHRS) for a vehicle is provided along with methods for mitigating vehicle acceleration effects in the AHRS. The AHRS comprises an inertial measurement unit configured to generate inertial measurements from at least one accelerometer and at least one gyroscope, a heading source configured to generate heading measurements, and an adaptive statistical filter configured to mitigate the impact of vehicle acceleration effects on attitude and heading.

Abstract: A torque motor actuator includes a first magnetic pole piece, a second magnetic pole piece, an armature, and an armature stop. The second magnetic pole piece is spaced apart from the first magnetic pole piece to define an armature gap. The armature is disposed in the armature gap and is spaced apart from the first and second magnetic pole pieces. The armature includes a magnetically permeable material and has a central portion, a first arm, and a second arm. The armature is rotationally mounted at the central portion, and the first and second arms extend, in opposite directions, from the central portion. The armature stop extends from the first arm, and comprises a non-magnetic material. The armature stop is configured, upon rotation of the armature, to selectively engage one of the first or second magnetic pole pieces to thereby limit armature rotation.

Abstract: Coaxial probes for guided wave radar level transmitters have an inner rod within an outer tube. Transmission line impedance changes where the space between the two fills with process fluid, causing a reflection of radar energy. Time of flight calculations yield the distance to the product and thus the level of the fluid in a tank. The inner rod and outer rod should maintain their spacing because a reflection can occur if the inner rod moves too close to the outer tube wall. Spacers can maintain the spacing. The spacers should be retained so that their location over time doesn't change. Retention strategies involving shoulders or discontinuities in the inner rod or outer tube can cause measurement errors. Applications requiring high temperature resistance and high chemical compatibility lead to ceramic spacers instead of plastic spacers. Slip fits are needed when ceramics are too stiff for snap-in functionality.

Abstract: A two-position, two-stage servo valve includes a valve body, a valve element, a control pressure chamber, and a control element. The valve body has an inner surface that defines a valve element chamber that includes a first control chamber and a second control chamber. The first control chamber is larger than the second control chamber. The valve element has first and second ends and is disposed within the valve element chamber and is movable between a first valve position and a second valve position. The first end is larger than the second end and is disposed within the first control chamber, and the second end is disposed within the second control chamber. The control pressure chamber includes a control pressure port that is in continuous fluid communication with the first control chamber. The control element is movable between a first control position and a second control position.

Abstract: This disclosure is directed to systems and methods for smart transitioning between aircraft trajectory management modes. In one example, a system is configured to track a speed of a target aircraft in flight ahead of an own aircraft on which the system is positioned. The system is further configured to determine whether the target aircraft has maintained a rate of change in speed within a selected range of variation in change of speed, for a selected period of time. The system is further configured to enable an activation of a merging trajectory management mode of the own aircraft in response to determining that the own aircraft is in a trajectory management mode transition airspace and that the target aircraft has maintained the rate of change in speed within the selected range of variation in change of speed, for the selected period of time.

Abstract: In the manufacture of carbon-carbon composite brake discs, migration of anti-oxidant substances into the friction surfaces is prevented by limiting or eliminating surface porosity in the carbon-carbon composite brake materials. The method includes infusing a suitable resin into pores in surface layers of the carbon-carbon composite disc and then charring the resin-infused disc to convert the resin in the pores to pyrolytic carbon. The resin may be infused into the carbon disc by submerging the disc in a molten resin. Prior to submerging the disc in the molten resin, the disc may subjected to a vacuum to remove air from the pores. While the disc is submerged in the molten resin, the pressure in the pressurizable vessel may increased to force the molten resin into the open porosity of the disc.

Abstract: A mechanism for differential pressure sealing for use in a compressor, such as for fuel cell applications, is described. In a dual-stage compressor, a low pressure side and/or a high pressure side of the dual-stage compressor may include a compressor wheel supported by a shaft that can rotate about an axis of the shaft. A seal carrier may be provided that rotates with the compressor wheel and includes a groove for receiving a sealing ring, which may be a split expansion ring. A static seal plate may be positioned around a periphery of a portion of the seal carrier, such that the sealing ring can seal against a contact surface of the static seal plate when received in the groove in order to create a pressure differential seal. The low pressure side may include one sealing ring, whereas the high pressure side may include two sealing rings positioned in series.

Abstract: A head-up display system and method are provided that suppress double images from a combiner by eliminating or reducing a reflection of a refracted image from the back surface of the combiner. The combiner contains a tilted axis polarizing structure that attenuates transmittance and subsequent reflection of a refracted polarized projector image but maintains high transmittance for the forward external scene imagery.

Abstract: Heat transfer compositions, methods and use wherein the composition comprising: (a) from about 5 to about 20% by weight of HFC-32 and (b) from about 80% to about 95% by weight of HFO-1234ze.