Abstract: A system for data transfer in a rotorcraft includes a power bus extending from a power source in a main fuselage of the rotorcraft to provide electrical power to electrical loads located in a tail boom section of the rotorcraft, a first power line communication node on the power bus in the tail boom section of the rotorcraft, a second power line communication node on the power bus in the main fuselage of the rotorcraft, and a digital sensor bus connected to the first power line communication node. Information from the digital sensor bus is transmitted to the first power line communication node and across the power bus to the second power line communication node.

Abstract: A method can include emitting, from a light source, directional light through fuel contained in a fuel tank, and determining a refraction angle of the directional light after the directional light passes through an interface with the fuel. The method can further include determining, by a processing device, an index of refraction of the fuel based on the determined refraction angle, and determining, by the processing device, a density of the fuel based on the determined index of refraction of the fuel.

Abstract: An aftertreatment system comprises a SCR system. The SCR system includes a housing having an inlet, an outlet and defining an internal volume. At least one catalyst can be positioned within the internal volume. A mounting support is positioned around at least a portion of a perimeter of the housing. A heat shield is positioned around the perimeter of the housing such that the housing is positioned substantially within the heat shield. A portion of the heat shield is disposed on and in contact with the mounting support. A clamp is positioned around a heat shield perimeter. The clamp is positioned on the portion of the heat shield disposed on and in contact with the mounting support. The mounting support is configured to transmit a clamping force of the clamp on the heat shield to the housing to prevent buckling of the heat shield from the clamping force.

Abstract: A remote data concentrator includes an enclosure with an interior divided into first and second compartments, a first transceiver, and a second transceiver. The first transceiver is seated within the first compartment and the second transceiver is seated within the second compartment. The first and second compartments are radio-frequency isolated such that the transceivers can independently communicate with external wireless devices and communicate with one another for testing readiness of the RDC for communication with external wireless devices.

Abstract: A computer implemented method includes transmitting a transmit command to a first data concentrator to send out a predetermined signal of predetermined characteristics according to a transmission setting, receiving a received signal from at least one second data concentrator, and determining if there are any signal transmission effects between the first data concentrator and the second data concentrator based on a comparison of the predetermined signal and the received signal.

Abstract: A method can include generating image data of an interior of a fuel tank disposed within a wing of an aircraft, and determining, by a processing device, an amount of wing bending of the wing of the aircraft based on the generated image data of the interior of the fuel tank. The method can further include producing, by the processing device, a fuel measurement value representing an amount of fuel contained in the fuel tank based on the amount of wing bending of the wing of the aircraft, and outputting, by the processing device, an indication of the fuel measurement value.

Abstract: A method for detecting leakage at a fluid connection for a gas turbine fuel supply system is disclosed herein. The method includes closing a flow control valve at an upstream end of the fuel supply system and pressurizing the fuel supply system with a compressed medium via a compressed medium supply to a target pressure. The target pressure is less than a pressure threshold of a check valve that is disposed downstream from the compressed medium supply and upstream from a corresponding combustor of the gas turbine. The method further includes pointing a receiver portion of an ultrasonic detection device proximate to at least one tube fitting of the fuel supply system located between the flow control valve and a combustor which is fluidly coupled to the fuel supply system. Detection of an increase in sound level and/or the sound of popping at the tube fitting is indicative of a leak at the tube fitting.

Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.

Abstract: A method can include transmitting, from a light source, light through a fuel tank ullage, and determining, by a processing device, an amount of absorption of at least one wavelength of the transmitted light. The method can further include determining, by the processing device based on the amount of absorption of the at least one wavelength of the transmitted light, a chemical composition of the fuel tank ullage.

Abstract: A transformer based digital isolator is provided that has improved immunity to common mode interference. The improved immunity is provided by placing the transformer in association with an H-bridge drive circuit, and taking additional effort to tailor the on state resistance of the transistors to control a common mode voltage at the transformer.

Abstract: The present invention relates in general to a system to protect and monitor production and non-production oil and gas wells. The present invention provides an oil or gas well and field integrity system for a well which passes through at least one subterranean formation containing pressurized formation fluids. The system comprising at least one oil or gas well located within a designated oil or gas field; and at least one bund wall formed within a target zone of the at least one subterranean formation, each bund extending along at least a portion of a perimeter surrounding the oil or gas field or along at least a portion of a section surrounding one or more oil or gas wells within the oil or gas field to assist in maintaining hydrostatic pressure on at least one side of the bund wall within the target zone thereby reducing the possibility of subsidence within the oil or gas field.

Abstract: Ivabradine hemipamoate of formula (I): and its hydrates. Medicinal products containing the same which are useful in the treatment or prevention of the various clinical situations of myocardial ischaemia such as angina pectoris, myocardial infarction and the associated rhythm disturbances, as well as in the various pathologies involving rhythm disturbances, especially supraventricular rhythm disturbances, and in systolic or diastolic heart failure.

Abstract: Apparatus and associated methods relate to selectively bypassing a daisy-chained network device based on a timing of a series of reset signals. The daisy-chained network device is bypassed if an elapsed time from a last of the reset signals of the series is longer than a predetermined time period. While no interval between adjacent reset signals of the series exceeds the predetermined time period, the daisy-chained network device is not bypassed. In some embodiments, the daisy-chained network device generates the series of reset signals. If the daisy-chained network device fails to generate a next reset signal within the predetermined time period as measured from a previous reset signal, the daisy-chained network device is bypassed. If the daisy-chained network device loses power, it will be bypassed as the reset signals will not be generated, but if the daisy-chained network device regains power, it can be reinserted into the network daisy-chain.

Abstract: A first air data value is generated based on a first set of parameters. A second set of parameters that does not include any of the first set of parameters is processed through an artificial intelligence network to generate a second air data value. The second set of parameters is processed through a plurality of diagnostic artificial intelligence networks to generate a plurality of diagnostic air data values. Each of the plurality of diagnostic artificial intelligence networks excludes a different one of the second set of parameters. One of the second set of parameters is identified, based on the first air data value and the plurality of diagnostic air data values, as a fault source parameter that is associated with a fault condition.

Abstract: This disclosure relates to hematoxylin staining formulations and particularly to formulations for use in autostainers. The disclosed compositions were discovered to possess atypical stability under storage while having high stain quality and sufficiently fast staining performance. The disclosed hematoxylin staining compositions include a solvent system, hematoxylin, a chemical oxidant, and a mordant. Illustrative embodiments also have a Cl?/SO4? molar ratio of between about 2.5/1 and about 1/4.

Abstract: This invention relates in general to the detection and containment of leaking gas and fluids from around wellheads of a well site. The system comprising: at least one perforated or slotted pipe adapted to be placed adjacent a wellhead and having holes sized to allow the transmission of liquid and gas into the pipe, wherein the liquid or gas are leaking from and around the wellhead conductive pipe and the wellhead; a flexible cover, covering at least the adjacent areas around the wellhead and the at least one perforated or slotted pipe; and a fluid detector in fluid communication with the at least one perforated or slotted pipe.

Abstract: A method can include illuminating an interior of a fuel tank with one or more light pulses, and receiving reflected returns of the one or more light pulses at a light sensor array. The method can further include producing, by a processing device, three-dimensional image data of the interior of the fuel tank based on the received reflected returns, producing, by the processing device, a fuel measurement value representing an amount of fuel contained in the fuel tank based on the three-dimensional image data, and outputting, by the processing device, an indication of the fuel measurement value.

Abstract: A method can include generating reference image data representing a field of view of an interior of a fuel tank, and generating active image data representing the field of view of the interior of the fuel tank when the fuel tank contains fuel. The method can further include producing, by a processing device, a fuel measurement value representing an amount of fuel contained in the fuel tank based on the reference image data and the active image data, and outputting, by the processing device, an indication of the fuel measurement value.

Abstract: A method can include transmitting, from a light source, light through a fuel tank ullage, and determining, by a processing device, an amount of absorption of at least one wavelength of the transmitted light. The method can further include determining, by the processing device based on the amount of absorption of the at least one wavelength of the transmitted light, a chemical composition of the fuel tank ullage.