Abstract: A computing system is provided that implements a system classifier including a first artificial intelligence model configured to classify each of a plurality of elements a computer system into one or more defined security categories, and a threat classifier including a second artificial intelligence model configured to classify each of a plurality of identified cybersecurity threats into the one or more defined security categories. The computing system further includes a threat analyzer configured to perform an analysis of a risk posed by each cybersecurity threat to each element of the target computer system based at least on the security categories of the classified cybersecurity threats and the security categories of classified elements of the target computer system, and output a security recommendation based on the analysis.

Abstract: A landing gear monitoring and alerting system includes a locking pin configured to be inserted into an aperture extending through a linkage of an extended landing gear assembly. When inserted into the aperture, the locking pin inhibits movement of the linkage to establish a locked state of the extended landing gear assembly. This system further includes a magnetic sensor and a communication module. The magnetic sensor is disposed proximate the aperture and is configured to sense a magnetic response indicative of the locking pin being disposed within the aperture. The magnetic sensor is configured to generate a sensor output indicative of the locking pin being disposed within the aperture. The communication module has a transmitter coupled to the magnetic sensor so as to receive the sensor output and is configured to responsively transmit a signal indicative of the locking pin being disposed within the aperture.

Abstract: A computing system is provided implementing a text miner configured to mine unstructured data from unstructured text sources and extract features of a target computer system, and a data flow diagram editor configured to process the extracted features to identify system elements of the target computer system and interrelationships between the identified system elements, and to identify system-related candidate properties of the system elements, and to populate a system element template for each identified system element with the system-related candidate properties for that element. The data flow diagram editor is configured to generate a data flow diagram for the target computer system comprising each identified system element having the candidate properties adopted according to the system property adoption user input, and is configured to display the generated data flow diagram in the graphical user interface.

Abstract: A method for managing computing resources on a vehicle with line-replaceable units (LRUs) including respective allocated system resources for tasks the LRUs are designed to perform and respective unallocated system resources that are available is provided. Implementations of the method include identifying the LRUs and applying a middleware layer across the LRUs to establish an edge computing infrastructure in which the LRUs operate as edge nodes. The middleware layer receives information from the edge nodes identifying the unallocated system resources and identifies data sources onboard the vehicle, data provided by those sources, and tasks to be performed using the data. The middleware further determines expected operational performance of the edge computing infrastructure and distributes the tasks to be performed across the edge nodes based on the expected operational performance of the edge computing infrastructure.

Abstract: An aircraft is configured to perform onboard analytics using available onboard systems. The aircraft comprises a cabin and crew network core with a middleware layer comprising an orchestrator configured to send application containers to a number of cabin and crew network smart members to perform the onboard analytics; and the number of cabin and crew network smart members each having a respective edge member daemon, each edge member daemon configured to place a respective cabin and crew network smart member in a joined state with the middleware layer and release resources of the respective cabin and crew network smart member when it leaves a joined state and enters a busy state so that the edge member daemon does not interfere with a primary function of the respective cabin and crew network smart member.

Abstract: A computing system is provided that implements a system classifier including a first artificial intelligence model configured to classify each of a plurality of elements a computer system into one or more defined security categories, and a threat classifier including a second artificial intelligence model configured to classify each of a plurality of identified cybersecurity threats into the one or more defined security categories. The computing system further includes a threat analyzer configured to perform an analysis of a risk posed by each cybersecurity threat to each element of the target computer system based at least on the security categories of the classified cybersecurity threats and the security categories of classified elements of the target computer system, and output a security recommendation based on the analysis.

Abstract: A computing system is provided implementing a text miner configured to mine unstructured data from unstructured text sources and extract features of a target computer system, and a data flow diagram editor configured to process the extracted features to identify system elements of the target computer system and interrelationships between the identified system elements, and to identify system-related candidate properties of the system elements, and to populate a system element template for each identified system element with the system-related candidate properties for that element. The data flow diagram editor is configured to generate a data flow diagram for the target computer system comprising each identified system element having the candidate properties adopted according to the system property adoption user input, and is configured to display the generated data flow diagram in the graphical user interface.

Abstract: A landing gear monitoring and alerting system includes a locking pin configured to be inserted into an aperture extending through a linkage of an extended landing gear assembly. When inserted into the aperture, the locking pin inhibits movement of the linkage to establish a locked state of the extended landing gear assembly. This system further includes a magnetic sensor and a communication module. The magnetic sensor is disposed proximate the aperture and is configured to sense a magnetic response indicative of the locking pin being disposed within the aperture. The magnetic sensor is configured to generate a sensor output indicative of the locking pin being disposed within the aperture. The communication module has a transmitter coupled to the magnetic sensor so as to receive the sensor output and is configured to responsively transmit a signal indicative of the locking pin being disposed within the aperture.

Abstract: A rotating electrical machine has a rotor composed of laminations having salient poles. The poles have one or more holes which are positioned so as to reduce the peak stress experienced by the laminations when the rotor is rotating. The holes are chosen according to a disclosed design procedure which gives a reduction in peak stress for a given limit on the output of the machine.

Abstract: A rotating electrical machine has a rotor composed of laminations having salient poles. The poles have one or more holes which are positioned so as to reduce the peak stress experienced by the lamination when the rotor is rotating. The holes are chosen according to a disclosed design procedure which gives a reduction in peak stress for a given limit on the output of the machine.

Abstract: A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and the aliphatic dialdehyde) is either simultaneously or subsequently added to the reaction mixture. The flexibilized resorcinolic novolak resin can be used in an adhesive composition for enhancing the adhesion between tire cords and rubber for tire applications.

Abstract: A process for making phenylene dioxydiacetic acid comprises (a) contacting a dihydroxybenzene under reaction conditions with a salt of haloacetic acid in a solution without adding a haloacetic acid to produce a salt of phenylene dioxydiacetic acid; and (b) optionally converting the salt of phenylene dioxydiacetic acid to free phenylene dioxydiacetic acid. In some embodiments, 1,3-phenylene dioxydiacetic acid (RDOA) is made by reacting resorcinol with sodium chloroacetic acid in a reaction mixture with a pH in the range of about 7 to about 11 and at a temperature from about 70° C. to 105° C. By adjusting the reactions conditions, a relatively high yield of 1,3-phenylene dioxydiacetic acid (i.e., greater than 80%) is obtained. The purified acid can be used in the synthesis of polyester, such as polyethylene terephthalate.

Abstract: A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.

Abstract: A modified phenolic novolak resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aliphatic polyol. The reaction mixture further reacts with a formaldehyde to produce a modified phenolic novolak resin. The reaction is typically carried out in the presence of an acid or a base catalyst. The resulting resin is characterized by a relatively low level of free resorcinol; and rubber compounds containing the resin exhibit low fuming, lower Mooney viscosity (which means better processing), better dynamic stiffness properties (G?), and/or good tear properties. Therefore, the resulting resin can be used as a methylene acceptor compound in a vulcanizable rubber composition.

Abstract: Benzoylresorcinol-based phosphate esters are obtained by reacting a benzoylresorcinol compound with a chlorophosphate. The benzoylresorcinol-based phosphate esters can function as flame retardants and/or UV stabilizers for polycarbonates (PC), poly(phenylene oxide) (PPO), polyesters (e.g., PET and PBT), polycarbonate and acrylonitrile-butadiene-styrene terpolymer (PC/ABS) blends, poly(phenylene oxide) and high-impact polystyrene (PPO/HIPS) blends and other polymers. The benzoylresorcinol-based phosphate ester flame retardants may possess enhanced thermal stability compared to resorcinol based phosphate ester (RDP). Synthetic procedures and applications of the benzoylresorcinol-based phosphate esters compounds are provided.

Abstract: Flavan-based and spirodichroman compound-based phosphate esters prepared by reacting flavans and spirodichroman compounds with phosphorus oxychloride, monophenyl dichlorophosphate, or diphenyl chlorophosphate compounds are described. The flavans and spirodichroman compounds can be synthesized by the reaction of resorcinol with aliphatic acetone. Such phosphate esters can be used as flame retardants.

Abstract: Resorcinol carbonate-based phosphate esters are prepared by reacting resorcinol carbonates with phosphorous oxychloride or a chlorophosphate. The resorcinol carbonates can be synthesized by the reaction of resorcinol with phosgene or diphenyl carbonate. The resorcinol carbonate-based phosphate esters can be used as flame retardants and perhaps flowing agents.

Abstract: A silane-modified phenolic resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an aldehyde to produce a phenolic novolak resin. The phenolic novolak resin is further reacted with at least one silane compound to produce the silane-modified phenolic resin. The reaction is typically carried out in the presence of an acid or base catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.

Abstract: A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.

Abstract: A vulcanizable rubber composition comprises (a) a rubber component; (b) a methylene donor compound; and (c) a methylene acceptor comprising a blend of a high ortho-ortho bonded phenolic novolak resin and a resorcinolic resin. The resin blend can be made by a number of methods.