Abstract: A system for building a gas processing apparatus includes a compressed gas source, a pressure modulator in communication with the gas source, and a chamber configured to receive a gas permeable material. The chamber is further configured with a first chamber area on one side of the material and with a second chamber area on a second side of the material. A sensor is configured to measure over time a pressure differential between the first and second chamber areas. A memory stores performance characteristic data for a plurality of gas processing apparatus. A processor converts the pressure differential to a material characteristic of the gas permeable material, and compares the material characteristic to at least one selected performance characteristic of the gas processing apparatus.

Abstract: The present invention relates to a refrigerant composition, including difluoromethane (HFC-32), pentafluoroethane (HFC-125), and trifluoroiodomethane (CF3I) for use in a heat exchange system, including air conditioning and refrigeration applications and in particular aspects to the use of such compositions as a replacement of the refrigerant R-410A for heating and cooling applications and to retrofitting heat exchange systems, including systems designed for use with R-410A.

Abstract: An electrochemical acrylonitrile sensor comprises a housing, an electrolyte disposed within the housing, and a plurality of electrodes in contact with the electrolyte within the housing. The plurality of electrodes comprises a working electrode and a counter electrode. The electrodes comprise a catalytic material, which may comprise gold. A potential is applied between the counter electrode and the working electrode.

Abstract: A method of securing data in an industrial processing facility (IPF) includes creating a private blockchain (PB) using a OPC UA standard functionality and storing the PB in an OPC UA address space adding it to an OPC UA communication protocol framework including edge-nodes coupled to a cloud-based or edge-located data storage. The edge-nodes are PB participant nodes, and a regulator or leader assigns them a single role as a blockmaker, block voter, or observer. The hash in the public ledger is updated once a new block is validated by a majority of the block voters, and the new block is propagated to all PB participant nodes. The regulator, leader or observer utilizes a time bound majority voting consensus to determine whether the PB participant nodes come to a consensus on a current state in the storage medium, and if a consensus the new block added to the public ledger.

Abstract: A method for initializing a device for performing acoustic speech recognition (ASR) using an ASR model, by a computer system including at least one processor and a system memory element. The method includes obtaining a plurality of voice data articulations of predetermined phrases, by the at least one processor via a user interface. The plurality of voice data articulations includes a first quantity of audio samples of actual articulated voice data, and each of the plurality of voice data articulations includes one of the audio samples including acoustic frequency components. The method further includes performing a plurality of augmentations to the plurality of voice data articulations of predetermined phrases, to generate a corpus audio data set that includes the first quantity of audio samples and a second quantity of audio samples including augmented versions of the first quantity of audio samples.

Abstract: Provided are technologically improved adaptive ground safety lighting systems and related methods. The method includes receiving cockpit data providing a weight on wheels (WOW) indicator, an off-runway indicator, an engine off indicator, and an engine temperature, and receiving, from a connected-light assembly comprising a plurality of connected lighting edge nodes, a respective temperature measurement and wind measurement. Upon determining that there is a concurrent occurrence of (a) WOW indicator asserted, (b) off-runway indicator asserted, and (c) engine off indicator asserted, an environmental map around the aircraft is constructed, and a dissipation timer is started. A caution volume surrounding the engine is generated based on the heat dissipation factor of the engine and other received data, and the plurality of lighting edge nodes are illuminated in accordance with the caution volume.

Abstract: Systems and methods for augmented reality (AR) safe visualization for use with a near to eye (NTE) display system worn by a user are provided. The system includes: a processor programmed with an AR program and a task database storing task data; and, a camera mounted to the NTE display system and providing video input. The processor receives the video input and coordinates video image processing of the video input to identify therein a user's hand and an object. The processor receives an intended task from the user and retrieves associated task data based thereon. The processor processes the task data with the intended task to render a visualized item, such as a job card. The processor determines when the visualized item is in front of the hand while the user is performing the task and removes the visualized item responsive thereto.

Abstract: A device comprises a magnetoresistive sensor configured to generate a signal indicative of an angular position of a magnetic field, the signal having an angular range of 180 degrees, and a differential Hall sensor pair comprising a first Hall sensor and a second Hall sensor. The differential Hall sensor pair is configured to generate a signal indicative of a polarity of the magnetic field. A second differential Hall sensor pair can also be used. The second differential Hall sensor pair is configured to generate a signal indicative of a polarity of the magnetic field.

Abstract: Systems and methods are disclosed for monitoring models monitoring Internet-connected devices. Systems and methods include receiving, from an Internet-connected devices monitoring system, training data, the Internet-connected devices monitoring system being configured to predict future maintenance needs and/or failures of at least one Internet-connected device. Systems and methods further include receiving, from the Internet-connected devices monitoring system, production data associated with the at least one Internet-connected device, and determining that a data distance metric between the training data and the production data exceeds a first predetermined risk threshold. Systems and methods further include determining a risk level to be associated with the Internet-connected devices monitoring model based on the determination that the data distance metric exceeds the first predetermined risk threshold.

Abstract: A method includes detecting a storage device. The method also includes performing a check-in process so that the storage device is recognizable by one or more protected nodes within a protected system and not recognizable by nodes outside of the protected system while the storage device is checked-in. The method further includes storing data associated with one or more cyber-security threats on the storage device. The method may also include detecting the storage device a second time and retrieving audit data on the storage device, where the audit data identifies which of the one or more protected nodes accessed the data on the storage device. The method may further include performing a check-out process so that the storage device is recognizable by the nodes outside of the protected system and not recognizable by the one or more protected nodes within the protected system while the storage device is checked-out.

Abstract: A process for making a fluorinated olefin having the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms, preferably carried out in the presence of a catalyst selected from the group consisting of (i) one or more metal halides, (ii) one or more halogenated metal oxides, (iii) one or more zero-valent metals/metal alloys, (iv) a combination of two or more of the foregoing.

Abstract: A system for sensing particulate matter receives a first plurality of electronic signals from a photodetector over a period of time, the first plurality of electronic signals associated with a first plurality of particles, wherein each of the first plurality of electronic signals has a respective amplitude, sorts the first plurality of electronic signals into a plurality of amplitude levels, determines a respective quantity of signals associated with each amplitude level, determine an average summation of the first plurality of electronic signals, performs a calibration using the average summation, receives a second plurality of electronic signals from the photodetector over a period of time subsequent to the calibration, the second plurality of electronic signals associated with a second plurality of particles, and determines a mass concentration of the second plurality of particles based on the second plurality of electronic signals.

Abstract: A hydraulic lock for an actuator having a movable shaft includes a lock cylinder having a first end and a second end. A slot is defined through a perimeter of the lock cylinder adjacent to the second end, and a bore is defined through a portion of the lock cylinder at the second end to extend towards the first end. The hydraulic lock includes at least one pawl having a first pawl end and a second pawl end. The first pawl end is releasably coupled to a groove defined in the shaft, and the second pawl end is coupled to the slot. The pawl is movable relative to the slot between a first, locked position in which the first pawl end is coupled to the groove to inhibit movement of the shaft, and a second, unlocked position in which the first pawl end is released from the groove.

Abstract: Thermal barrier coatings, which may be used in gas turbine engines, comprise or consist of a tantala-niobia-zirconia mixture that is stabilized with two or more stabilizers. An exemplary thermal barrier coating comprises or consists of, by mole percent: about 2% to about 30% YO1.5; about 8% to about 30% YbO1.5 or GdO1.5 or combination thereof; about 6% to about 30% TaO2.5; about 0.1% to about 10% NbO2.5; about 0% to about 10% HfO2; and a balance of ZrO2.

Abstract: Embodiments of a methods for producing gas turbine engine rotors and other powdered metal articles having shaped internal cavities are provided. In one embodiment, the method includes consolidating a powdered metal body utilizing a hot isostatic pressing process to produce a rotor preform in which elongated sacrificial tubes are embedded. Acid or another solvent is directed into solvent inlet channels provided in the elongated sacrificial tubes to chemically dissolving the elongated sacrificial tubes and create shaped cavities within the rotor preform. The rotor preform is subject to further processing, such as machining, prior to or after chemical dissolution of the elongated sacrificial tubes to produce the completed gas turbine engine rotor.

Abstract: A method of alarm notification includes providing data for an industrial process including stored alarm event data and stored Key Performance Indicator (KPI) data, and an alarm event-KPI correlation and operator notification system. Patterns of relationships are discovered between the stored alarm event and KPI data to provide a reference pattern database that identifies KPI violation events in the KPI data as a function of the alarm event data or alarm events in the alarm event data as a function of the KPI data. Pattern matching uses a real-time alarm event and real-time KPI data to determine a pattern similarity by comparing a current sequence spanning a predetermined time of the real-time alarm event and KPI data to the patterns. When the pattern matching identifies a current alarm event or KPI violation event, an operator is notified and a predicted KPI value or feature or a predicted alarm event.

Abstract: A method includes emulating an Enhanced Application Module Redundancy (EAM-R) system that includes a primary EAM-R board and a secondary EAM-R board. Emulating the EAM-R system includes detecting that data received from a sensor has been written to a memory block associated with the primary EAM-R board, and sending instructions to a secondary computing device to write a copy of the data to a same memory block in the secondary computing device that is associated with the secondary EAM-R board. The EAM-R system is emulated in an emulation system that includes at least one network connection. The emulation system does not include a physical primary EAM-R board or a physical secondary EAM-R board.

Abstract: A guided wave radar (GWR)-based method of measuring steam pressure includes transmitting at least a first microwave pulse signal from a GWR sensor system having a pulsed radar gauge (PRG) implementing a steam measurement algorithm coupled to a transceiver that is coupled to a GWR probe in a steam boiler tank having a reference reflector (RR) providing an impedance discontinuity. The transmitting the first microwave pulse signal is with water and steam in the steam boiler tank. An echo emanating from the RR is received responsive to the first microwave pulse signal generates that respective time of flight (TOF) measurement data. A refractive index value for the steam is determined from the TOF measurement data and a reference TOF value representing a TOF measurement without the steam in the steam boiler tank. A physical property of the steam is determined from the refractive index value, such as the pressure.

Abstract: A propeller pitch control system for a turboprop engine of an aircraft includes a negative torque sensor, a full feather control valve assembly, and a feather valve assembly. The feather valve assembly is responsive to fluid pressures from the negative torque sensor and the control valve assembly to move between a plurality of positions. An engine control unit or a manual user interface can also be used to control the position of the feather.