Abstract: A component for a turbine engine is provided. The component includes a main body portion having a flow path surface; and a protective layer formed of a chopped fiber material, the protective layer cohered to at least a portion of the flow path surface of the main body portion.

Abstract: A gas turbine engine is provided. The gas turbine engine includes: a turbomachine; a fan including a plurality of fan blades rotatably driven by the turbomachine; a nacelle surrounding at least in part the plurality of fan blades of the fan; and a clearance control system including a control ring positioned at least partially within the nacelle, coupled to the nacelle, or both for control of a clearance gap between the plurality of fan blades and the nacelle.

Abstract: Embodiments here broadly relate to a system which allows for flexibly, and adaptively, accommodating for various analog and digital streams. In one example case, the system can accommodate for the use of both legacy modems as well as newer digital modems. The system may not require the use of complex and expensive, very high data rate and/or very high throughput wideband digital switches in some architectures, as well as potentially eliminating the need for some additional processing equipment found in traditional architectures (i.e., wideband signal processors (WSP), legacy modem data converts (LDMCs), etc.).

Abstract: In accordance with embodiments of the present disclosure, a method of driving a playback waveform to an electromagnetic actuator by a transducer driving system may include operating the transducer driving system in a first mode wherein the electromagnetic actuator is driven with the playback waveform in a closed loop to form a closed-loop voltage drive system that includes a negative impedance, operating the transducer driving system in a second mode wherein the electromechanical actuator is driven with the playback waveform in an open loop, and operating a mode switch for transitioning the transducer driving system to operate between the first mode and the second mode.

Abstract: An airfoil for gas turbine engines is generally provided. The airfoil defines a span extending between a root and a tip, the airfoil further defines a chord at each point along the span extending between a leading edge and a trailing edge. Further, the airfoil includes at least one frangible airfoil portion, a residual airfoil portion adjacent to the at least one frangible airfoil portion, and one or more zones. The one or more zones may include a plurality of cavities, where at least one or more cavities of the plurality of cavities include inclusions, with the inclusions having one or more materials.

Abstract: The disclosure provides a brace for supporting a spine of a patient. The brace includes an anterior panel, a posterior panel, lateral panels bridging between the anterior panel and the posterior panel, and an adjustable belt tightenable around the anterior panel, the brace selectively configurable to include either lateral panels attachable to the posterior, a posterior thoracic extension attachable to the posterior panel or a dorsal lumbar extension attachable to the posterior panel.

Abstract: A taillight enhancement harness for providing a lighting enhancement to a taillight of a towed vehicle. The harness interconnects a first lighting system of a towing vehicle and a second lighting system of the towed vehicle. A lighting enhancement circuit is interposed between a first connector, configured to couple to the towing vehicle, and a second connector, configured to couple to the towed vehicle. The lighting enhancement circuit is configured to activate a taillight of the towed vehicle in a strobe operation. After a predetermined temporal period, the taillight resumes a normal indication operating mode for the taillight.

Abstract: The disclosed embodiments relate to a user interface which enables a trader to define a bilaterally negotiated strategy, including the agreed upon total price, and the component transactions, and automatically, e.g. with a single action, calculate at least one set of prices for all of the component transactions which mathematically net out to the agreed upon total price, conforms to fair and reasonable live market prices, and adheres to venue pricing rules, such as tick increment/size.

Abstract: An electronic dartboard apparatus with an “in-play” scoring area that includes a plurality of narrow concentric circular areas, as well as a plurality of narrow straight-line areas which extend from the innermost circular area, through the interior circular areas, to the outermost circular area. The outermost circular area serves to distinguish between the “in-play” and “out-of-play” areas. The distinct color of the narrow concentric circular and straight-line areas makes them distinguishable from the rest of the board, creating very clear boundaries between all the other scoring areas that make up the “in-play” area. Both the narrow circular and straight-line areas are flush with the rest of the dartboard, and include scoring holes identical to those throughout the entire “in-play” area, thus making the “in-play” surface one continuous, very precise scoring area, where darts no longer bounce off the board, and fail to register the proper score.

Abstract: Implementations of the subject technology provide for storing a temporary certificate on a mobile device for accessing services in association with a primary number. A device determines that a first subscriber identity module (SIM) card, previously used by the device, is not available for use by the device. The device determines that a second SIM card is available for use by the first device within a predetermined time period after the first SIM card is determined to be not available for use by the device. The device confirms that a communication identifier of the first SIM card is strongly tied to a user account associated with the device. The device stores a temporary certificate that attests to continued ownership of the communication identifier by the device and allows the device to access at least one service in association with the communication identifier.

Abstract: Composite components, such as gas turbine engine airfoils, and methods of forming composite components are provided. For example, a composite component of a gas turbine engine comprises a plurality of continuous fiber layers, each continuous fiber layer formed from a plurality of continuous fibers disposed in a matrix material, and a chopped fiber layer comprising a plurality of chopped fibers formed as a filmed sheet. The chopped fiber layer is laid up with the plurality of continuous fiber layers to form the composite component. A method for forming a composite component comprises laying up a plurality of continuous fiber layers, each continuous fiber layer comprising continuous fibers disposed in a matrix material; laying up a chopped fiber layer with the plurality of continuous fiber layers, the layup of the plurality of continuous fiber layers and the chopped fiber layer forming a reinforced layup; and curing the reinforced layup.

Abstract: A wheel assembly bushing for in-wheel electric motors where the bushing includes a hydraulic chamber positioned within a resilient sleeve of the bushing and a helical fluid channel that extends helically about an inner bushing member between first and second fluid channel ends, which are arranged in fluid communication with the hydraulic chamber. An outer body extends annularly about the resilient sleeve, which permits relative movement between the inner bushing member and the outer body. The fluid channel is configured to produce inertance. This inertance, when combined with other damping and stiffness effects of the wheel assembly bushing, provides phase and magnitude shifts between force and velocity, which ultimately reduce magnetic gap deformation in the in-wheel electric motor.

Abstract: A transportation vehicle including a plurality of battery packs, a plurality of power equipment, and a controller. The controller is configured to identify at least one of the plurality of power equipment or at least one of the plurality of battery packs that requires charging and direct power through a bus to distribute power to at least one of the plurality of power equipment or at least one of the plurality of battery packs. The plurality of battery packs are configured to recharge the plurality of power equipment.

Abstract: A component for a gas turbine engine. The component includes a continuous fiber blade including an airfoil extending radially between a root and a tip and a blade attachment feature positioned at or adjacent to the root. The component further includes a platform coupled to the root of the continuous fiber blade. The platform includes a plurality of chopped fibers. Additionally, the component includes a thermoplastic polymer contained in both the continuous fiber blade and the platform. Moreover, the continuous fiber blade and platform are coupled together such that the continuous fiber blade and platform form a monolithic composite body.

Abstract: Methods, apparatus, systems and articles of manufacture corresponding to a fan blade with intrinsic damping characteristics are disclosed. An example fan blade comprises an exterior body including a first side and a second side; a first hairpin structure in contact with (a) the first side of the exterior body and (b) the second side of the exterior body; and a second hairpin structure in contact with (a) the first side and (b) the second side, wherein the first hairpin structure and the second hairpin structure are made from different materials.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to adjust a pitch axis of a blade of an engine. An example blade apparatus includes: a hub to facilitate movement of blades in an engine, the engine having a radial center line; and a trunnion connected to the hub. The example trunnion includes a slot to accommodate a first blade, and at least one of the trunnion or the first blade is positioned with at least one of a tilt or a lean with respect to the radial center line to form a pitch axis offset from the radial center line such that the pitch axis is not parallel to or co-linear with the radial center line. The example hub is to rotate the first blade about the pitch axis.

Abstract: A product dispenser holder comprises a dispenser holder body configured to receive a product dispenser that stores a supply of a product to be dispensed, an actuation sensor that senses actuations of the product dispenser, and an actuation button, such that when an actuation force is applied to a pump of the product dispenser, a substantially downward force is applied to the actuation button causing the actuation button to rotate substantially downwardly and actuate the actuation sensor to generate a dispenser actuation signal.

Abstract: A rotor blade for a gas turbine engine includes an airfoil section and a root section extending along a longitudinal direction between an upstream surface and a downstream surface. The root section further extends along a radial direction between an inner surface positioned at an inner end of the root section and an outer end coupled to the airfoil section. Moreover, the root section extends along a circumferential direction between a first side surface and a second side surface. Furthermore, the root section defines a longitudinal centerline extending along the longitudinal direction and positioned equidistant from the inner surface and the outer end in the radial direction. The root section includes a first portion formed from a composite material and a second portion formed from a metallic material, with the longitudinal centerline extending through the second portion of the root section.

Abstract: An airfoil arrangement for a gas turbine engine may include a support device using a shape memory alloy to support and control the airfoil. The support device may be formed as part of a fan blade. The arrangement may be configured to reduce overall weight and dimensions of the gas turbine engine.

Abstract: A rotor disk for a gas turbine engine includes a disk body having a central bore extending therethrough. The disk body includes a bore body that extends around the central bore, a web that extends radially outward from the bore body having decreased thickness relative to the bore body and a peripheral rim that is located at an outer end of the web. The peripheral rim includes blade mounting structures for engaging complementary mounting structures of rotor blades. The bore body has a bore cavity that extends continuously through the bore body and about an entire periphery of the central bore. The bore cavity has a central axis that forms a circle about the central bore.