Abstract: Systems and methods are disclosed for detecting security threats during vehicle operations. For instance, retrieving a route plan for a route of a vehicle from a database of the vehicle; identifying either a portion of the route or a portion of the route plan as a security threat based on an analysis of the route plan; and in response to identifying the portion of the route or the portion of the route plan as the security threat, transmitting an alert of the security threat.

Abstract: Systems and methods are disclosed for detecting data corruption in vehicle data systems. Systems and methods of detecting data corruption or tampering in vehicle data systems may include steps for receiving first electronic navigational plan data, the first electronic navigational plan data comprising a plurality of waypoints, and storing the first electronic navigational plan data in a data store. Systems and methods may further comprise receiving second electronic navigational plan data from a vehicle management system, the second electronic navigational plan data comprising a second plurality of waypoints, and, upon determining a discrepancy between the first plurality of waypoints and the second plurality of waypoints, generating an alert indicating possible data corruption in the second electronic navigational plan.

Abstract: Reusable substrate bases for producing multilayer semiconductor devices are provided, as well as free-standing semiconductor devices and reusable substrate bases produced for the multilayer semiconductor devices. The reusable substrate bases comprise a Si-based substrate, a transition lattice overlayed thereon, and a sacrificial ZnO-based layer overlayed on the transition lattice. The transition lattice comprises alternating transition layers of aluminum nitride (AlN) and GaN or Al-doped GaN. The multilayer semiconductor devices comprise the aforesaid reusable substrate bases and a semiconductor stack which comprises a pair of p-n junction forming layers. Methods for producing the multilayer semiconductor devices, the reusable substrate base, as well as free standing semiconductor devices detached from the reusable substrate bases, are also provided.

Abstract: Reusable substrate bases for producing multilayer semiconductor devices are provided, as well as free-standing semiconductor devices and reusable substrate bases produced for the multilayer semiconductor devices. The reusable substrate bases comprise a Si-based substrate, a transition lattice overlayed thereon, and a sacrificial ZnO-based layer overlayed on the transition lattice. The transition lattice comprises alternating transition layers of aluminum nitride (AlN) and GaN or Al-doped GaN. The multilayer semiconductor devices comprise the aforesaid reusable substrate bases and a semiconductor stack which comprises a pair of p-n junction forming layers. Methods for producing the multilayer semiconductor devices, the reusable substrate base, as well as free standing semiconductor devices detached from the reusable substrate bases, are also provided.

Abstract: A system consisting of a collection of aircraft equipped with specific chemical, radiological or particulate sensors as well as a data link radio and navigation sub system flying their normal routes. The position, sensor output and air data is periodically communicated to the ground via a data link radio and collected. The data is used to make maps or models of the spatial distribution of the sensed quantity for a particular time period. Dynamic behavior can be discerned by considering time consecutive models. Predictions can be made using this data alone, or in conjunction with other data, and can be refined by comparisons between the prediction and subsequent spatial distribution maps.