Abstract: A method of forming transistor structures uses existing gallium nitride formation processes to form dies that are then reconstituted into a larger wafer format to enable the use of existing large wafer manufacturing tooling for scaling. In some embodiments, the method comprises forming a reconstituted wafer by bonding dies having gallium nitride (GaN) transistor structures to a carrier wafer and hybrid bonding the reconstituted wafer to a silicon wafer having silicon-based transistor control structures. The dies may include high electron mobility transistors (HEMTs) formed on, for example, a silicon substrate, a silicon carbide substrate, or a sapphire substrate.

Abstract: A modular compliance verification and audit recording system is disclosed. The system includes a plurality of hardware modules interconnected via a system communications bus, a memory storing rule sets, access profiles, and encrypted audit records, and communication circuitry configured to interface with one or more external electronic devices through a secure network gateway. The system receives and authenticates compliance data, applies stored rule sets to determine verification results, records verified events as immutable audit entries, and enforces data-minimization and redaction policies to generate privacy-protected audit information. The processed audit information is transmitted over the secure network gateway to authorized external systems. The system provides end-to-end verification, recording, and privacy preservation of compliance-related data across distributed computing environments.

Abstract: Disclosed herein are devices and related methods for measuring the permeation of a gas, including hydrogen, of a pipe or pipe liner. A sealed vessel for permeation testing is contained within the device, and immersed within a volume of liquid. Leakage of gas from the sealed vessel during testing produces bubbles, which are captured by the device. The amount of gas which leaks from the sealed vessel can thereby be readily and accurately determined.

Abstract: A frame for an eyewear comprises a lens opening and a groove surrounding the lens opening. The lens opening may be defined by an upper frame portion, a lower frame portion, a first lateral side portion, and a second lateral side portion of the frame. The groove may interchangeably receive and secure a first lens and a second lens within the lens opening. The first lens may have a different thickness than the second lens. The lens opening may extend across both eyes of the wearer.

Abstract: A disclosed method of determining operating states of a fan uses a digital image of the fan and at least one operating parameter-specific algorithm. In a first stage, the method includes generating the digital image of the fan as a representation of the fan's properties, the representation based on one or more mathematical calculation models and optionally known data. The method further includes generating the at least one operating parameter-specific algorithm based on at least one of known relationships and characteristic curves, and calculating component states of the fan via the digital image, wherein the calculation of component states is based on virtual sensors. The method further includes generating a system behavior algorithm that calculates operating parameters of the fan based on the component states and optionally generates predictions relating to the operation of the fan.

Abstract: Described herein are heating, ventilation, air conditioning, and refrigeration (HVACR) systems and methods directed to indoor air quality. HVACR systems and methods are based on dynamic people modeling to simulate and/or to monitor airflow impact on pathogen spread in an indoor space. HVACR systems and methods model an indoor space with pathogen killing technology to deploy the pathogen killing technology. HVACR systems and methods are directed to control administration of a pathogen killing technology to an indoor space based on factors that impact airflow including from dynamic analytics, a known input, and/or detection.

Abstract: A contaminant-risk analysis device generates a CAD model of a defined space based on received parameters, simulates a contaminant spread model relative to the CAD model, generates a contaminant risk assessment for the defined space based on the contaminant spread model being applied to the CAD model, and generates a revised CAD model of the defined space based on the generated contaminant risk assessment.

Abstract: An apparatus includes a first terminal configured to be coupled to a substation around mat for a substation and a second terminal configured to be coupled to a safety around mat for a piece of electrical equipment powered by the substation. The system further includes at least one voltage-dependent resistance device, such as at least one metal oxide varistor (MOV) configured to be coupled between the first and second terminals. At least one circuit interruption device, such as a fuse and/or a disconnect switch may be coupled in series with the at least one voltage-dependent resistance device.

Abstract: Described herein are heating, ventilation, air conditioning, and refrigeration (HVACR) systems and methods directed to indoor air quality. HVACR systems and methods are based on dynamic people modeling to simulate and/or to monitor airflow impact on pathogen spread in an indoor space. HVACR systems and methods model an indoor space with pathogen killing technology to deploy the pathogen killing technology. HVACR systems and methods are directed to control administration of a pathogen killing technology to an indoor space based on factors that impact airflow including from dynamic analytics, a known input, and/or detection.

Abstract: Described herein are heating, ventilation, air conditioning, and refrigeration (HVACR) systems and methods directed to indoor air quality. HVACR systems and methods are based on dynamic people modeling to simulate and/or to monitor airflow impact on pathogen spread in an indoor space. HVACR systems and methods model an indoor space with pathogen killing technology to deploy the pathogen killing technology. HVACR systems and methods are directed to control administration of a pathogen killing technology to an indoor space based on factors that impact airflow including from dynamic analytics, a known input, and/or detection.

Abstract: An illustrative elevator system includes an elevator car, a machine including a motor that provides a motive force for moving the elevator car along a travel path and a brake that resists movement of the elevator car, and a brake controller. The brake controller is configured to determine when the elevator car is within a selected range of at least one end of the travel path. The brake controller inhibits a delay in application of the brake when the elevator car is within the selected range and permits a delay in application of the brake when the elevator car is outside of the selected range.

Abstract: A disclosed method of determining operating states of a fan uses a digital image of the fan and at least one operating parameter-specific algorithm. In a first stage, the method includes generating the digital image of the fan as a representation of the fan's properties, the representation based on one or more mathematical calculation models and optionally known data. The method further includes generating the at least one operating parameter-specific algorithm based on at least one of known relationships and characteristic curves, and calculating component states of the fan via the digital image, wherein the calculation of component states is based on virtual sensors. The method further includes generating a system behavior algorithm that calculates operating parameters of the fan based on the component states and optionally generates predictions relating to the operation of the fan.

Abstract: A frame for an eyewear comprises a lens opening and a groove surrounding the lens opening. The lens opening may be defined by an upper frame portion, a lower frame portion, a first lateral side portion, and a second lateral side portion of the frame. The groove may interchangeably receive and secure a first lens and a second lens within the lens opening. The first lens may have a different thickness than the second lens. The lens opening may extend across both eyes of the wearer.

Abstract: A compressor system is disclosed with at least one fluid compressor for compressing a working fluid. At least one separator tank is structured to receive compressed working fluid from the compressor and separate air and lubricating fluid from the working fluid. A lubrication supply conduit is fluidly coupled between the separator tank and at least one compressor for supplying lubrication from the separator tank to the compressor. A blowdown pressure control valve is fluidly coupled to the separator tank. A controller is connected to the blowdown pressure control valve to control a pressure in the separator tank to a predetermined pressure at a compressor operating condition.

Abstract: A multilayer tube for guiding fuel fluid or brake fluid. The multilayer tube comprises an outer protection layer, a barrier layer radially within the outer protection layer, an intermediate layer radially within the barrier layer, and an inner layer radially within the intermediate layer. At least two of the layers are co-extruded layers. Each of the barrier layer and the inner layer comprises a partially aromatic polyamide.

Abstract: The present disclosure provides a compressor system operable for compressing a working fluid such as air. A conditioner is positioned upstream of the compressor to reduce the humidity and in some embodiments may control a temperature of the working fluid entering the compressor. A working fluid aftercooler and a lubricant cooler is positioned downstream of the compressor. A first heat exchange system directs water from a source through the conditioner and then to the aftercooler and oil cooler in parallel. A second heat exchange system directs oil from the compressor to the oil cooler and then to a regenerator prior to reentry into the compressor. A control system with one or more control valves is configured to provide oil to the compressor at a target temperature defined to ensure that the temperature of the discharged compressor is above a pressure dew point temperature.

Abstract: An apparatus includes a first terminal configured to be coupled to a substation around mat for a substation and a second terminal configured to be coupled to a safety around mat for a piece of electrical equipment powered by the substation. The system further includes at least one voltage-dependent resistance device, such as at least one metal oxide varistor (MOV) configured to be coupled between the first and second terminals. At least one circuit interruption device, such as a fuse and/or a disconnect switch may be coupled in series with the at least one voltage-dependent resistance device.

Abstract: A device minimizes or eliminates surface flaws caused by metal dust on a metal strip to be coated in a continuous hot-dip coating process, where at least some segments of the metal strip to be coated are conveyed through the device in an axial direction. The device may comprise a blowing/sucking unit with blow-in openings for applying protective gas to the metal strip, which blow-in openings are positionable on first and second sides of the metal strip. The blowing/sucking unit may further include suction openings for extracting protective gas laden with metal vapor and/or metal dust, which suction openings are positionable on the first and second sides of the metal strip. The blowing/sucking unit may have a blow-in region in which the blow-in openings are arranged, and a suction region downstream of the blow-in region in which the suction openings are arranged.

Abstract: Implementations of a sensing device may include: a circuit board including a microprocessor, an ultrasonic sensor coupled with the circuit board, an infrared sensor coupled with the circuit board, and a wireless communication module coupled with the circuit board. Each of the ultrasonic sensor and the infrared sensor may be configured to receive input from the surroundings of the user to indicate a presence of an individual behind the user.

Abstract: An illustrative elevator system includes an elevator car, a machine including a motor that provides a motive force for moving the elevator car along a travel path and a brake that resists movement of the elevator car, and a brake controller. The brake controller is configured to determine when the elevator car is within a selected range of at least one end of the travel path. The brake controller inhibits a delay in application of the brake when the elevator car is within the selected range and permits a delay in application of the brake when the elevator car is outside of the selected range.