Abstract: Disclosed herein are methods of making fragmentation casings for bombs and warheads. Particularly, cold spray methods are used. A layer or layers of metal, metal alloy, and optional other materials are deposited by cold spray application of cold spray materials to preform/mandrel, having patterned structures to define fragmentation points (e.g., stress concentrators) in a fragmentation casing formed on the preform/mandrel via cold spray. In addition to such cold spray processes for forming a fragmentation casing, this disclosure relates to the preform/mandrels used as well as the resultant fragmentation casing formed via cold spray.

Abstract: Methods of use of flow sensors on aerial vehicles and devices thereof are disclosed. The methods include a method for flow correction for a flow induced lifting device, a method for a first flight vehicle to autonomously follow a second flight vehicle, a method for providing an informed launch for a flight vehicle, and a method for thermal soaring. Flight vehicles configured to perform the method are also disclosed.

Abstract: Nanoimprinted films, devices including nanoimprinted films, methods for making such films, and devices and apparatuses for making such films are described herein. The nanoimprinted films can be used to provide an antireflective coating for windows, windshields, visors, lenses, and other devices.

Abstract: Sensors for the detection of free radicals and free radical forming compounds including, for example, peroxides, as well as energetic radiation, UV light, plasma or heat each such sensor including a functional component are described herein. In addition, this disclosure includes methods for making such sensors and methods for using sensors including a functional component and devices incorporating such sensors.

Abstract: Apparatuses such as inserts for radomes are described herein. The apparatuses and inserts including a metal layer having a frequency selective surface.

Abstract: Sensors including a functional component, methods for making such sensors and methods for using sensors including a functional component for the detection of free radical forming compounds including peroxides and devices incorporating such sensors are provided herein.