Defense Research Associates (DRA), develops spectral sensing technologies, sensor processing techniques, and computational solutions for aircraft and other applications. The company specializes in various technologies in these areas, including: UAS sense and avoidance, threat awareness, non-traditional intelligence, surveillance and reconnaissance, unmanned systems endurance enhancements, power/energy harvesting, and virtual aircraft modeling and simulation. The firm works with government agencies to develop, modify, and/or integrate hardware and software prototype applications for a variety of applications. Exemplifying the firm's diverse capabilities, other projects include land vehicle modifications, digital image recorders, and a electrical model of a human brain encased in a model of a human skull, developed in collaboration with Wright State University Applied Research Center in order to research the effects of transcranial Direct-Current Stimulation (tDCS).