Abstract: Provided are methods, apparatus and systems for stabilization of a glow discharge from a plasma. Also provided are methods, apparatus and systems for processing optical signals from a stabilised glow plasma with enhanced signal to noise recovery. A first method comprises: generating an electric field within a plasma cell using an alternating excitation voltage to excite particles within the cell, to produce a glow discharge from a plasma in the plasma cell in a resonant condition; monitoring, in each excitation cycle of the alternating excitation voltage, one or more signals that correlate with glow discharge optical emissions from the plasma in the plasma cell; and, in response to said monitoring, controlling one or more operating conditions for the plasma cell to maintain the glow discharge emissions from the plasma within a desired operating range in each excitation cycle of the alternating excitation voltage.

Abstract: An embodiment generates, by analyzing prompts, a prompt template. Each prompt includes a text description of a content to be generated by a model. An embodiment classifies, using a first trained classification model, a variant portion of a prompt into a category in a set of categories. An embodiment selects, from a repository of prompt templates including the prompt template, a selected prompt template having a similarity above a threshold similarity to a first prompt. An embodiment classifies, using the selected prompt template, a variant portion of the first prompt into a first category in the set of categories. An embodiment adjusts, responsive to determining that the first category is designated as a harmful category, the variant portion of the first prompt. An embodiment causes, using the adjusted first prompt, the model to produce a first content.

Abstract: A method for operating a propulsion system for an aircraft, the propulsion system including a gas turbine engine and a fuel cell assembly, the fuel cell assembly including a fuel cell stack having a fuel cell defining an outlet positioned to remove output products from the fuel cell during operation, the method including: executing a startup sequence for the fuel cell assembly, wherein executing the startup sequence for the fuel cell assembly includes initiating the startup sequence for the fuel cell assembly; executing a startup sequence for the gas turbine engine, wherein executing the startup sequence for the gas turbine engine comprises initiating the startup sequence for the gas turbine engine subsequent to initiating the startup sequence for the fuel cell assembly; and operating the fuel cell assembly to provide output products to a combustion section of the gas turbine engine.

Abstract: A gas operating system for a firearm for use with low energy ammunition that includes a barrel having a maximum pressure experienced at a maximum pressure location when firing the low energy ammunition where a gas port is positioned distally from the maximum pressure location in a region of the barrel that experiences between 90% of the maximum pressure and 40% of the maximum pressure, a gas block on the barrel and a tube connecting the gas block to a bolt carrier, where the gas block directs energy from combustion gas pressure vented through the gas port to the bolt carrier via the tube.

Abstract: An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm to about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.

Abstract: An apparatus for supporting a user includes a faceplate, an arm, a bridge, and a base. The bridge is rotatably attached to the faceplate to allow the faceplate to be pivotably adjusted. The bridge includes a hub with first and second hub bodies. Locking pins on the hub bodies slidingly engage pivot adjustment holes in first and second pivot adjustment rings. First and second buttons can be depressed to slide the hub bodies inwardly to separate the locking pins from the pivot adjustment holes to allow the hub to rotate, thereby allowing the faceplate to pivot. When the buttons are released, the hub bodies slide outwardly to insert the locking pins into the same or different pivot adjustment holes to prevent the hub from rotating.

Abstract: A content addressable memory (CAM) circuit includes a word line driver that incorporates a digital-to-analog converters (DAC), which enables the CAM circuit to store an n-bit value only with n CAM cells. The CAM circuit includes one or more of CAM cells configured to store bit values, at least one word line driver coupled to word lines of the CAM cells and configured to supply word line output to drive the CAM cells, and at least one bit line driver coupled to bit lines of the CAM cells and configured to supply bit line outputs to drive the CAM cells. The word line driver and the bit line driver include DAC circuits that includes PFETs and NFETs.

Abstract: An integrated circuit (IC) includes first and second memory devices and a bridge. The IC also includes a first interconnect segment coupled between the first memory device and the bridge. The IC further includes a second interconnect segment coupled between the first and second memory devices, and a third interconnect segment coupled between the bridge and the second memory device. The IC includes a first DMA circuit coupled to the first interconnect segment, and a second DMA circuit coupled to the second interconnect segment. A fourth interconnect segment is coupled between the first and second DMA circuits.

Abstract: A convertible blanket that converts into a hammock. More particularly, a convertible blanket with an integrated suspension system and a method of hanging the convertible blanket. More particularly, a hammock and storage product.

Abstract: Described is an ophthalmic device that contains visible light filters. The invention provides an ophthalmic device that is a free radical reaction product of a reactive mixture comprising: one or more monomers suitable for making the ophthalmic device; a first visible light filtering compound, the first visible light filtering compound having a visible light absorption maximum between 430 and 480 nm and a full width half maximum at the visible light absorption maximum of at least 35 nm and up to 150 nanometers, wherein the first visible light filtering compound is photostable, and wherein the first visible light filtering compound has a molar extinction coefficient of at least 7740 L·mol?1·cm?1; and a second visible light filtering compound having a visible light absorption maximum between 480 and 530 nm and a full width half maximum of at least 50 nanometers and up to 150 nanometers. The reactive monomer mixture may also contain a third visible light filtering compound.

Abstract: Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.

Abstract: A system includes a modular exhaust collector configured to be arranged in a first orientation or a second orientation. The modular exhaust collector is configured to receive an exhaust flow along an inlet axis, to direct the exhaust flow along a first direction through an outlet when in the first orientation, and to direct the exhaust flow along a second direction through the outlet when in the second orientation. The modular exhaust collector includes an exhaust passage to receive the exhaust flow, a plurality of compressor discharge (CD) ports, a plurality of flow ports, a bottom face opposite the outlet with a first drain, and a first side wall with a second drain between the bottom face and the outlet. Each CD port is disposed a first radial distance from the inlet axis, and each flow port is disposed a second radial distance from the inlet axis.

Abstract: The present disclosure relates to arthropod pest control sprays and methods of using such sprays to control arthropod pests.

Abstract: According to an example, a method is performed by an electronic control system of a firearm training device that simulates a firearm. The method includes, responsive to detecting an object within a trigger region neighboring a trigger of the firearm training device via a trigger region incursion sensor, controlling a laser emitter of the firearm training device to emit a first laser emission at a first wavelength according to a first emission pattern. The method further includes, responsive to detecting actuation of the trigger via a trigger sensor of the firearm training device, controlling the laser emitter to emit a second laser emission at a second wavelength according to a second emission pattern. In this example, the first wavelength differs from the second wavelength, or the first emission pattern differs from the second emission pattern.

Abstract: Examples of an imaging system for use with a head mounted display (HMD) are disclosed. The imaging system can include a forward-facing imaging camera and a surface of a display of the HMD can include an off-axis diffractive optical element (DOE) or hot mirror configured to reflect light to the imaging camera. The DOE or hot mirror can be segmented. The imaging system can be used for eye tracking, biometric identification, multiscopic reconstruction of the three-dimensional shape of the eye, etc.

Abstract: Described is an energy converter for converting rotational energy to mechanical strain energy in flat spiral springs, the converter unit including: an axle for operatively mounting a plurality of spiral springs having inner ends and outer ends; at least a first and second spiral spring module, each module including one or more spiral springs operatively mounted at each inner end to the axle, one or more of the springs in each of the spiral spring modules having their outer ends operatively connected together with a link extending between the first and second spiral spring modules, wherein the arrangement of radial spiral windings in the first and second spiral spring modules are substantially reflected or mirrored across a plane disposed between the first and second spiral spring modules.

Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively.

Abstract: A time-division multiplexed projection display is pixel shifted to produce an increased perceived display resolution. A polarizing beam splitter (PBS) divides input unpolarized display light into two orthogonal linear polarizations and directs them to two PBS arms. The PBS arms act to shift the light in synchronization with the time-multiplexed display such that a single pixel of the light engine providing the display light is converted into two or four virtual pixels, effectively increasing the perceived display resolution relative to the native resolution of the light engine. The PBS combines the light from both PBS arms into a single, unpolarized output that may then be projected into a lens or a waveguide incoupler to enable the light to propagate through a waveguide for display at a user's eye.

Abstract: A time-division multiplexed projection display is pixel shifted to produce an increased perceived display resolution or to mitigate image defects, such as defects in a display, a waveguide, or a prism, in an augmented, mixed, or virtual reality device. A polarizing beam splitter (PBS) divides input unpolarized display light into two orthogonal linear polarizations and directs them to two PBS arms. The PBS arms act to shift the light in synchronization with the time-multiplexed display such that a single pixel of the light engine providing the display light is converted into two or four virtual pixels, effectively increasing the perceived display resolution relative to the native resolution of the light engine. The PBS combines the light from both PBS arms into a single, unpolarized output that may then be projected into a lens or a waveguide incoupler to enable the light to propagate through a waveguide for display.

Abstract: Disclosed are systems and methods for detecting compromise of a plurality of co-located interaction cards; including: receiving interaction information indicating that an interaction has been processed, the interaction information indicating that one of the plurality of co-located interaction cards was used in the interaction, the one of the plurality of co-located interaction cards used in the interaction having limited authorized interaction modalities. Based on a determination that the interaction was processed via an unauthorized modality, it is determined that all of the plurality of co-located interaction cards are potentially compromised. In response to determining that all of the plurality of co-located interaction cards are potentially compromised, corrective actions may be taken including: sending an alert to a cardholder; sending an alert to an issuer of at least one of the plurality of co-located interaction cards; or locking each of the plurality of co-located interaction cards.