Abstract: An enclosure for a three-dimensional printing system comprises a plurality of walls and a glass panel. The walls define an inner chamber for receiving the three-dimensional printing system and an opening that provides access to the inner chamber from outside the walls. The glass panel is shiftable between a closed position in which the panel blocks access to the inner chamber and an open position in which the panel allows access to the inner chamber via the opening.

Abstract: Systems and methods for multiple inertial measurement unit sensor fusion using machine learning are provided herein. In certain embodiments, a system includes inertial sensors that produce inertial measurements, a memory unit that stores a fusion model produced by at least one machine learning algorithm, and a processor that receives inertial measurements, where the processor applies the fusion model to the inertial measurements. The fusion model directs the processor to extract features from the inertial measurements, and to select inertial measurements based on a sensor in the plurality of inertial sensors that produced the inertial measurements. Also, the fusion model directs the processor to apply weights to the selected inertial measurements based on the extracted features, to apply compensation coefficients to the selected inertial measurements, and to fuse the selected inertial measurements into an inertial navigation solution.

Abstract: Methods, devices, and systems for air traffic control (ATC) flight management are described herein. One device includes a memory, and a processor to execute executable instructions stored in the memory to receive airport information associated with an airport, generate, using the airport information, an ATC flight management analysis that includes an airport map showing locations of aircraft at the airport and a card panel including a number of flight cards, where each respective one of the number of flight cards corresponds to a different respective one of the aircraft at the airport, and a user interface to display the ATC flight management analysis in a single integrated display.

Abstract: Methods and systems for additively manufacturing a unitary ceramic part and repairing damaged ceramic parts including additively manufacturing a first ceramic green body having a joint surface and a second ceramic green body having a joint surface, wherein the joint surfaces are configured to be interfaced. The first ceramic green body and the second ceramic green body are sintered to form the unitary part. Additional ceramic green bodies may be connected and sintered to form the unitary part. The ceramic green bodies may have defects or may be damaged. A ceramic sheet may be manufactured and applied to the ceramic green bodies to repair the defects or damage. The ceramic sheet may be sintered with the ceramic green bodies to form the unitary part.

Abstract: Porous polysiloxane microspheres may be formed using a double emulsion (W/O/W) and double reaction process. The methods generally comprise forming a first emulsion and reacting components of the emulsion phases to form reinforced hydrogen gas pockets. The first emulsion is then combined with a solvent to form a second emulsion comprising a plurality of microspheres making up the dispersed phase. The microspheres comprise the reinforced gas pockets encapsulated by a polysiloxane, which are cured and recovered. The microspheres are particularly useful as fillers for low density composite materials and sensor applications.

Abstract: A method of producing purified bis(fluorosulfonyl) imide includes providing a liquid mixture including bis(fluorosulfonyl) imide and fluorosulfonic acid and then contacting the liquid mixture with gaseous ammonia. The gaseous ammonia reacts with the fluorosulfonic acid to produce ammonium fluorosulfate. The method further includes separating the liquid mixture from the ammonium fluorosulfate.

Abstract: A method includes providing a radar sensor onboard a vehicle, and one or more active radar beacons around a landing site. Each beacon produces a pattern of one or more artificial echoes that is different from a pattern of echoes produced by others of the beacons. The method further includes guiding the vehicle toward the landing site by transmitting radar signals from the radar sensor to an area around the landing site; receiving return signals from the area around the landing site, including ground reflected signals and transmitted signals from each beacon; and determining whether artificial echoes are detected in the received return signals. When artificial echoes are detected, beacon parameters are loaded from an onboard active beacons database; patterns in the artificial echoes are identified and associated with corresponding beacons from the database; and a slant range to each of the beacons is estimated through the patterns.

Abstract: One embodiment is a device, which comprises a cable attached at a first end to a radio module, the cable having a plurality of electro-magnetic interference (EMI) resistant elements connected at a plurality of positions, a radial board wherein the cable is attached thereto at a second end, and an antenna connected to the radial board, the antenna being configured to receive power from the radio module and to radiate.

Abstract: A vapor-compression system includes a centrifugal compressor configured to increase a pressure of a refrigerant based on at least one of an activation of a device or the device being equal to or above a first threshold temperature. A fluid communication system is configured to provide, to the device, a portion of the refrigerant in a liquid state. The portion of the liquid refrigerant in a liquid state is configured to have a saturation temperature equal to or below the first temperature threshold.

Abstract: Disclosed are methods, systems, and non-transitory computer-readable medium for determining guidance information for a vehicle. For instance, the method may include: determining whether the vehicle requires a charging event at least based on a state of charge of a battery system of the vehicle; determining a charging location of a charging station from a plurality of charging stations based on data associated with the vehicle and/or data associated with each of the plurality of charging stations; determining a current location of the vehicle; determining information to guide the vehicle from the current location to the determined charging location and align a charging interface of the vehicle to a charging interface of the charging location; and causing display of the determined information.

Abstract: A horizontal lifeline shuttle apparatus is provided. The horizontal lifeline shuttle apparatus includes an attachment portion, a body portion, and a cable channel. The body portion is configured to at least partially surround a portion of a cable so as to retain the portion of the cable within a cable channel The attachment portion is configured to move relative to the body portion based at least in part on the motion of the moveable pin fixedly secured thereto. At least a portion of the moveable pin is disposed within each of a plurality of moveable pin guide grooves positioned within the body portion such that a range of motion of the moveable pin is defined at least in part by the plurality of moveable pin grooves. At least one of the plurality of moveable pin grooves comprises a vertical portion.

Abstract: Devices, systems, and methods for system gateway analysis are described herein. In some examples, one or more embodiments include a mobile device comprising a memory and a processor to execute instructions stored in the memory to scan a building system gateway of a control system, generate gateway data about the building system gateway from the scan, transmit the gateway data to a remote computing device, receive, from the remote computing device, supplemented gateway information for the building system gateway, and generate, based on the supplemented gateway information, a system gateway analysis.

Abstract: An active landing marker including a housing, a cover panel, a marker panel and an energy source is provided. The cover panel is coupled to the housing, the cover panel made of polarized translucent material. The marker panel is positioned within the housing. The marker panel includes a plurality of selectively positioned energy absorbing sections and a plurality of energy transmission sections. The energy source is contained within the housing. The marker panel being positioned between the energy source and the cover panel. Energy radiated from the energy source passing through the energy transmission sections of the marker panel and through the cover panel generating an active signal marker having a unique marker pattern. The active signal marker aiding in the landing of vehicles during varying environmental conditions.

Abstract: A synthetic radio altimeter system is provided. At least one sensor is used to generate sensor data that is used at least to determine a then current vehicle location. At least one controller is configured to determine an elevation of terrain under a vehicle based on the determined then current location of the vehicle and terrain information in the terrain database. The at least one controller is further configured to determine a height of the vehicle above terrain based at least in part on the determined elevation of terrain under the vehicle and the sensor data. The at least one controller further configured to augment the determined height of the vehicle above terrain with at least in part navigation database information when the vehicle is near one of a travel path origin and a travel path destination. The height above terrain may also be augmented based on a navigation radio.

Abstract: Various embodiments relate to managing a database to modify data related to industrial assets using an intelligent data queue for data ingestion. Embodiments are configured to receive a data modification payload associated with a request to modify a portion of data stored in a time series database. Embodiments are also configured to parse the data modification payload to identify a type of modification with respect to the data stored in the time series database. Embodiments are also configured to store the data modification payload in at least one of a first data cache configured for storing pending data modification payloads and a second data cache configured for processing data modification payloads. In response to a determination that the data modification payload is stored in the second data cache, the data stored in the time series database is modified based at least in part on the type of modification.

Abstract: Various embodiments are directed to a fluid composition sensor device and method of using the same. In various embodiments, the fluid flow composition sensor is configured to receive a volume of fluid, the fluid composition sensor comprising a housing, a removable fluid flow component, an impactor nozzle, a collection media assembly dock element configured to receive a replaceable collection media assembly comprising a collection media configured to receive one or more particles within the volume of fluid, an imaging device configured to capture an image of at least a portion of the one or more particles received by the fluid composition sensor, and a controller configured to determine, based at least in part on the image, at least one particle characteristic of the volume of fluid. The imaging device may be configured to capture the image of one or more particles received by the fluid composition sensor using lensless holography.

Abstract: A method includes providing a cybersecurity risk model for cybersecurity and process risk modeling of assets in an industrial control system (ICS) including process controllers connected together by a communications network coupled by I/O devices to field devices coupled to processing equipment. The assets are configured together to implement a process. The risk model processes input data including event path data including event paths leading to a cybersecurity hazard and ?1 process hazard, exposure data for the cybersecurity and process hazard, and consequence data for the cybersecurity and the process hazard including a severity of failure, the risk model outputting functional consequences of failure of the cybersecurity and the process hazard, and a likelihood of failure for the hazards. A risk analysis engine processes the functional consequences and likelihood of failures for the cybersecurity and process hazard, and generates outputs including a quantified risk for the cybersecurity and process hazard.

Abstract: A method to control the cooldown of main heat exchangers in liquefied natural gas plant. The method provides for the automated control of a flow rate of a natural gas feed stream through a heat exchanger based on one or more process variables and set points. The flow rate of refrigerant streams through the heat exchanger is controlled by different process variables and set points, and is controlled independently of the flow rate of the natural gas feed stream.

Abstract: Methods, apparatuses and systems for providing a position sensing component are disclosed herein. An example position sensing component may comprise: a sensing coil; a moveable core disposed within the sensing coil; an oscillator circuit; and a feedback control circuit coupled to the oscillator circuit, wherein the position sensing component is configured to: maintain a fixed amplitude voltage in response to a variable current signal provided by the oscillator circuit in conjunction with the feedback control circuit, and generate an oscillator circuit output signal that is linearly proportional to a position of the moveable core with respect to the sensing coil.

Abstract: Various examples of a closed-loop optical gyroscope are disclosed. The closed-loop optical gyroscope includes a broadband light source configured to generate broadband optical signal(s). The broadband optical signal(s) propagate in an optical resonator and are coupled in and out of the optical resonator by optical couplers. A phase modulator applies phase modulation to the optical signal(s) based on a sawtooth modulation signal. The optical signal(s) repropagate in the optical resonator in a different direction. The optical signal(s) are then received and analyzed to determine parameter(s) of the phase modulator. One or more processors configure the phase modulator based on the determined parameter(s).