Abstract: Disclosed is a hydrogen feed conditioning system for a hydrogen fuel cell in which fresh hydrogen from storage and recycled hydrogen from an anode exhaust of the fuel cell are mixed and fed to an anode feed of the fuel cell. A stream of recycled hydrogen is first passed through a hydrogen/water separator configured to reduce an amount of water vapor in the recycled hydrogen stream. The system includes a condenser for the anode exhaust stream upstream of the hydrogen water separator.

Abstract: An aerosol generating device configured to operate with a consumable article includes: a first part, defining a cavity configured to receive the consumable article and to heat the consumable article during a vaping session, the consumable article thereby generating an aerosol; and a second part, separable from the first part and including a grabber, deformable between: an open configuration, for the grabber to grab the consumable article, when the second part is separated from the first part, and a holding configuration, for the grabber to hold the consumable article, such that the consumable article is inserted into the cavity, when the first part and the second part are assembled.

Abstract: A gas turbine engine includes: a core engine surrounded by a core fairing; a propulsive fan; a nacelle surrounding the propulsive fan, the core fairing and the core engine; and a fan duct for receiving a bypass air flow accelerated by the propulsive fan, the fan duct being defined between the nacelle and the core fairing. The gas turbine engine further includes an air-oil heat exchanger for cooling engine oil using an air flow diverted from the bypass air flow, the heat exchanger being mounted behind a wall of the fan duct. The gas turbine engine further includes a flow passage which receives the diverted air flow at a first location in the fan duct, delivers the diverted air flow to the heat exchanger, and returns the diverted air flow to the fan duct at a second location which is downstream of the first location.

Abstract: Systems and methods are directed to a speech translation system and methods for configuring a translation device included in the translation system. The translation device may include a first speaker element and a second speaker element. In some embodiments, the first speaker element may be configured as a personal-listening speaker, and the second speaker element may be configured as a group-listening speaker. The translation device may be configured to selectively and dynamically utilize one or both of the first speaker element and the second speaker element to facilitate translation services in different contexts. As a result, in such embodiments, the translation device may provide a wider range of user experiences that may facilitate translation services.

Abstract: A component including a first flange located in a first section of the component, the first flange including a contact surface. The component also including a second flange located in a second section of the component. The first flange is configured to attach to the second flange, and the second flange includes a contact surface configured to contact the contact surface of the first flange. The contact surface of the first flange and the contact surface of the second flange each has an undulating surface profile, where each undulating surface profile is defined by at least one peak point and at least one trough point connected by a curved line extending in at least one of a radial or a circumferential direction relative to a central axis of the component.

Abstract: A gas turbine engine includes: a core engine surrounded by a core fairing; a propulsive fan; a nacelle surrounding the propulsive fan, the core fairing and the core engine; and a fan duct for receiving a bypass air flow accelerated by the propulsive fan, the fan duct being defined between the nacelle and the core fairing. The gas turbine engine further includes an air-oil heat exchanger for cooling engine oil using an air flow diverted from the bypass air flow, the heat exchanger being mounted behind a wall of the fan duct. The gas turbine engine further includes a flow passage which receives the diverted air flow at a first location in the fan duct, delivers the diverted air flow to the heat exchanger, and returns the diverted air flow to the fan duct at a second location which is downstream of the first location.

Abstract: This invention concerns alignment of parts of a multi-part component such as an Intermediate Pressure Compressor (IPC) or High Pressure Compressor (HPC) casing. First and second sections (124,126) of a component (114) are provided with flanges (128,130) having contact surfaces (138,140) provided with corresponding surface profiles formed using smooth radius curves to limit the relative locations of the first and second sections (124,126).

Abstract: A valve having an outer housing defining a central bore with a fluid inlet and a fluid outlet. A check dart assembly, valve seat and piston assembly are retained within the central bore. The valve is moveable between open and closed positions in response to fluid flow into the fluid inlet of the valve.

Abstract: In one embodiment, in a power converter system having first and second switches connected in a half-bridge arrangement at a common node from which current flows through an inductor to a regulated output terminal, wherein the regulated output terminal is connectable to a load, wherein the first and second switches are turned on and off in cycles, a method is provided for synchronous rectification. The method includes: initiating a cycle in which the first switch is turned on; developing a timer based on the on-time of the first switch during the cycle; turning off the first switch and turning on the second switch during the cycle; and outputting a control signal to turn off the second switch when either the timer expires or a new cycle is initiated to turn on the first switch, thereby providing synchronous rectification in the power converter system.

Abstract: In one embodiment, in a power converter system having a load, a method is provided for varying the type of modulation employed for a pulse width modulation (PWM) signal. The method includes the following: monitoring the load of the power converter system; using leading edge modulation for the PWM signal under light load condition; and using trailing edge modulation for the PWM signal under heavy load condition; thereby optimizing operation of the power converter system.

Abstract: Gas lift valve designs and gas lift systems are described that feature a positive closure mechanism that is highly resistant to significant wear or damage that would result in fluid leakage. A pivotable flapper member is incorporated into a gas lift valve and used as a flow control mechanism. The flapper member provides a positive barrier to fluid flow from the production tubing to the annulus, even after substantial wear or damage.

Abstract: A system for packaging a flat panel product includes a dispensing device for dispensing a length of inner protective packaging material, a folding table for wrapping the inner protective packaging material around the product and folding an outer protective packaging material around the product, and a binding device for binding the outer packaging material, inner packaging material, and product together, suspending the product relative to at least one of the walls of the sidewall and supporting the product laterally. A data entry device provides data related to the length of inner protective packaging material required, and this data is fed to a controller, which controls the dispensing device to provide an appropriate length of material. The data entry device can also provide shipping information, fed to a printer for printing a shipping label.

Abstract: A first prefetch engine from a first plurality of prefetch engines is allocated to a first load instruction in response to a buffer miss of an iteration of the first load instruction in a program stream. The first plurality of prefetch engines include prefetch engines for prefetching data from memory to a buffer based on a predicted stride. A second prefetch engine from a second plurality of prefetch engines is allocated to the first load instruction in response to the buffer miss. The second plurality of prefetch engines include prefetch engines for prefetching data from memory to the buffer based on an instruction loop representative of a sequence of instructions that affect an address value associated with an allocated load instruction. One of the first or second prefetch engines is deallocated if the other prefetch engine achieves a prefetch performance greater than a first threshold value.

Abstract: A program stream is executed at a first processing engine, the program stream including multiple iterations of a first load instruction. An instruction loop is executed at a second processing engine separate from the first processing engine substantially in parallel with an execution of the program stream at the first processing engine for prefetching data from memory to a buffer for one or more iterations of the first load instruction of the program stream. The instruction loop represents a subset of a sequence of instructions between iterations of the first load instruction that affect an address value associated with the first load instruction. A confidence value associated with the instruction loop is modified based on a prefetch performance of one or more iterations of the first load instruction and it is determined whether to terminate execution of the instruction loop based on the confidence value.

Abstract: One or more control lines or other types of lines can be run past a downhole tool such as a side pocket mandrel, for example, in a longitudinal groove with a retaining feature for the control line where the assembly leaves little to stick out and get damaged on run in or on pulling out of the hole. In the preferred version, the groove is a dovetail and at least one retainer can be slipped into the dovetail. Lateral bores into the dovetail allow pins to be driven into a wedge shaped retainer to force it against the control line or lines such that the shape of the dovetail and the shape of the wedge retainer trap the control line within the dovetail. Upon assembly, nothing sticks out from the dovetail or the downhole tool.