Abstract: A regulator valve has a check valve manifold for use in subsea control circuits. For example, the regulator valve having the check valve manifold can be used in a circuit between a directional control valve and an actuator for a gate valve. The check valve manifold can have a flange that attaches to the regulator valve to communicate with the supply-side and outlet-side of the regulator valve. Internal communication inside the manifold includes a check valve. If the pressure in the circuit downstream of the regulator valve needs to be vented, the check valve can open to allow the pressure to bleed from the outlet-side back to the supply-side without needing to pass through the internal pressure control valve of the regulator.

Abstract: In one embodiment, a method includes generating a first visual representation of a location of a railroad station in relation to a railroad track, receiving a request for a first maintenance window, and determining that the first maintenance window is associated with the railroad station. The method further includes determining a first time period and generating a second visual representation of information associated with the railroad station during the first time period. The information includes an indication of a time that a train is scheduled to cross the railroad station during the time period. The information also includes an indication of a time duration for a second maintenance window that has been requested during the time period.

Abstract: Aspects of the disclosure relate to prosthetic valves having a frame, a frame cover, and a leaflet construct. Some aspects are directed to a diametric taper for the prosthetic valve for achieving enhanced performance of the prosthetic valve under operational conditions, enhanced compressibility and delivery characteristics, and other additional or alternative advantages. Other aspects are directed toward unique assembly and attachment methods for securing leaflet constructs to support structures. Other aspects are directed toward features for interacting with transcatheter delivery systems. Still other aspects are directed to such apparatuses, systems, and methods for valve replacement, such as cardiac valve replacement.

Abstract: A female undersea hydraulic coupling member is equipped with a plurality of pressure-energized metal seals configured to seal between the body of the female member and the probe of a corresponding male hydraulic coupling member in response to ambient hydrostatic pressure and/or hydraulic fluid pressure. Pressure-energized metal seals may also be provided to seal between the body of the female coupling member and a removable seal retainer or seal cartridge. In one particular preferred embodiment, the pressure-energized seals are back-to-back metal C-seals separated by annular seal supports having a generally T-shaped cross section and retained on one or more shoulders in the body of the female member by a removable seal cartridge.

Abstract: High quality, catalyst-free boron nitride nanotubes (BNNTs) that are long, flexible, have few wall molecules and few defects in the crystalline structure, can be efficiently produced by a process driven primarily by Direct Induction. Secondary Direct Induction coils, Direct Current heaters, lasers, and electric arcs can provide additional heating to tailor the processes and enhance the quality of the BNNTs while reducing impurities. Heating the initial boron feed stock to temperatures causing it to act as an electrical conductor can be achieved by including refractory metals in the initial boron feed stock, and providing additional heat via lasers or electric arcs. Direct Induction processes may be energy efficient and sustainable for indefinite period of time. Careful heat and gas flow profile management may be used to enhance production of high quality BNNT at significant production rates.

Abstract: In one embodiment, a method includes generating a first visual representation of a location of a railroad station in relation to a railroad track, receiving a request for a first maintenance window, and determining that the first maintenance window is associated with the railroad station. The method further includes determining a first time period and generating a second visual representation of information associated with the railroad station during the first time period. The information includes an indication of a time that a train is scheduled to cross the railroad station during the time period. The information also includes an indication of a time duration for a second maintenance window that has been requested during the time period.

Abstract: One aspect is an apparatus including an additively manufactured component including a surface with an end effector feature, the end effector feature co-additively manufactured with the additively manufactured component and configured to be gripped by a corresponding end effector on a robot. In an aspect, the end effector feature includes a recess in the surface. In another aspect, the recess includes an angled face. In an aspect, the recess has a teardrop shape. An aspect further includes an identification feature. In an aspect, the end effector feature includes a plurality of recesses in the surface. In another aspect, the end effector feature enables a 3-point kinematic self-aligning positive control lock.

Abstract: An approach to positioning one or more robotic arms in an assembly system may be described herein. For example, a system for robotic assembly may include a first robot, a second robot, and a control unit. The control unit may be configured to receive a first target location proximal to a second target location. The locations may indicate where the robots are to position the features. The control unit may be configured to calculate a first calculated location of the first feature of the first subcomponent, measure a first measured location of the first feature of the first subcomponent, determine a first transformation matrix between the first calculated location and the first measured location, reposition the first feature of the first subcomponent to the first target location using the first robot, the repositioning based on the first transformation matrix.

Abstract: Methods for aldehyde synthesis are provided. In one embodiment, a method for manufacturing aldehydes includes providing an aldehyde precursor stream and an air stream comprising nitrogen gas and oxygen gas to a reactor comprising a catalyst, reacting the aldehyde precursor stream and the oxygen gas, and converting the air stream to an oxygen gas stream when reacting the aldehyde precursor stream and oxygen gas.

Abstract: Apparatus and methods for additively manufacturing adhesive inlet and outlet ports are presented herein. Adhesive inlet and outlet ports are additively manufactured to include additively manufactured (AM) valves for reducing and/or eliminating sealant leakage and backflow. Robot end effectors are tailored to interface with the AM inlet and outlet ports and to provide an adhesive source and/or a vacuum source. AM inlet and outlet ports enable robust, lightweight, multi-material AM parts connected via adhesive joining.

Abstract: Methods for aldehyde synthesis are provided. In one embodiment, a method for manufacturing aldehydes includes providing an aldehyde precursor stream and an air stream comprising nitrogen gas and oxygen gas to a reactor comprising a catalyst, reacting the aldehyde precursor stream and the oxygen gas, and converting the air stream to an oxygen gas stream when reacting the aldehyde precursor stream and oxygen gas.

Abstract: An approach to positioning one or more robotic arms in an assembly system may be described herein. For example, a system for robotic assembly may include a first robot, a second robot, and a control unit. The control unit may be configured to receive a first target location proximal to a second target location. The locations may indicate where the robots are to position the features. The control unit may be configured to calculate a first calculated location of the first feature of the first subcomponent, measure a first measured location of the first feature of the first subcomponent, determine a first transformation matrix between the first calculated location and the first measured location, reposition the first feature of the first subcomponent to the first target location using the first robot, the repositioning based on the first transformation matrix.

Abstract: In one embodiment, a method includes generating a first visual representation of a location of a railroad station in relation to a railroad track, receiving a request for a first maintenance window, and determining that the first maintenance window is associated with the railroad station. The method further includes determining a first time period and generating a second visual representation of information associated with the railroad station during the first time period. The information includes an indication of a time that a train is scheduled to cross the railroad station during the time period. The information also includes an indication of a time duration for a second maintenance window that has been requested during the time period.

Abstract: An approach to positioning one or more robotic arms in an assembly system may be described herein. For example, a system for robotic assembly may include a first robot, a second robot, and a control unit. The control unit may be configured to receive a first target location proximal to a second target location. The locations may indicate where the robots are to position the features. The control unit may be configured to calculate a first calculated location of the first feature of the first subcomponent, measure a first measured location of the first feature of the first subcomponent, determine a first transformation matrix between the first calculated location and the first measured location, reposition the first feature of the first subcomponent to the first target location using the first robot, the repositioning based on the first transformation matrix.

Abstract: Apparatus and methods for additively manufacturing adhesive inlet and outlet ports are presented herein. Adhesive inlet and outlet ports are additively manufactured to include additively manufactured (AM) valves for reducing and/or eliminating sealant leakage and backflow. Robot end effectors are tailored to interface with the AM inlet and outlet ports and to provide an adhesive source and/or a vacuum source. AM inlet and outlet ports enable robust, lightweight, multi-material AM parts connected via adhesive joining.

Abstract: One aspect is an apparatus including an additively manufactured component including a surface with an end effector feature, the end effector feature co-additively manufactured with the additively manufactured component and configured to be gripped by a corresponding end effector on a robot. In an aspect, the end effector feature includes a recess in the surface. In another aspect, the recess includes an angled face. In an aspect, the recess has a teardrop shape. An aspect further includes an identification feature. In an aspect, the end effector feature includes a plurality of recesses in the surface. In another aspect, the end effector feature enables a 3-point kinematic self-aligning positive control lock.

Abstract: A package is configured to hold an information carrying card. The package includes a first panel connected to a second panel via a first fold line. The first panel includes a first opening. A third panel is connected to the second panel via a second fold line, the third panel includes a second opening. In a state where the first panel has been folded to overlap the second panel via the first fold line and the second panel has been folded to overlap the third panel via the second fold line, the first opening at least partially overlaps the second opening. The package may include a card on which data is stored. The data is exposed through the first and second opening to an environment outside the package.

Abstract: A gas turbine engine is disclosed including a bifurcation fairing located in a bypass duct of the gas turbine engine and traversing the radial extent of the bypass duct. The bifurcation fairing has a delivery conduit inlet leading to a delivery conduit extending inside the bifurcation fairing, the delivery conduit being arranged in use for delivery of bypass air to one or more components of the gas turbine engine. A diverter conduit has a diverter conduit inlet from the delivery conduit upstream of the delivery conduit reaching the one or more components of the gas turbine engine. The diverter conduit has an outlet to a location other than the one or more components of the gas turbine engine.

Abstract: A nacelle for a turbofan gas turbine engine is provided. An inner wall of the nacelle defines an air intake which directs air into the fan section of the engine. The intake has, in flow series, an intake lip, a throat and a diffuser. The diffuser has, in flow series, first and second flow conditioning sections over both of which the flow cross-sectional area of the diffuser increases with increasing downstream distance from the throat. In addition, over the second section the nacelle inner wall lies substantially on a surface of an oblique circular cone having an apex which is offset from the centerline of the engine.

Abstract: A gas turbine engine including an outlet guide vane and a bifurcation fairing is disclosed. The outlet guide vane is located in a bypass duct of the gas turbine engine downstream of a fan and is of aerofoil form. The bifurcation fairing traverses the radial extent of the bypass duct and has an upstream end that blends into a trailing edge of the outlet guide vane. The bifurcation fairing includes a scoop protruding outwards from its side corresponding to a pressure side of the upstream outlet guide vane. The scoop includes a forward facing inlet leading to a delivery conduit extending inside the bifurcation fairing for delivery in use of bypass air to one or more components of the gas turbine engine.