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The current downward trend in funding for U.S. defense systems seems to be on a collision course with the state of the practice in systems engineering, which typically results in the increased pace and scale of capabilities and resultantly increased cost of complex national defense systems. Recent advances in the state of the art in systems engineering(More)
characterization of an iodine field emission ion source for focused ion beam applications. " J. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Emission of positive and negative ions is possible when a room temperature molten salt, or ionic liquid, is exposed to a sufficiently high(More)
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. ABSTRACT We have developed a mission concept that uses 3-unit cubesats to perform new measurements of lunar magnetic fields, less than 100 meters above the Moon's surface. The mission calls for sending the cubesats on impact trajectories to(More)
MIT's Department of Aeronautics and Astronautics (AeroAstro) has long been one of the world's leading centers of aerospace research and education. With 225 graduate students, 180 undergraduate students, 35 faculty members, and top-ranked graduate and undergraduate educational programs, our community includes a former space shuttle astronaut, a former(More)
An approach is presented to the construction of a liquid rocket Health Monitoring (HM) system capable of using both, vibratory and thermo-dynamic data. Preliminary results are obtained in the area of vibration data tracking/identification, using as a test bed a low-order linear dynamic model of the Space Shuttle Main Engine (SSME) High Pressure Fuel(More)
Computational models of complex phenomena are an important resource for scientists and engineers. However, many state-of-the-art simulations of physical systems are computationally expensive to evaluate and are black box—meaning that they can be run, but their internal workings cannot be inspected or changed. Directly applying uncertainty quantification(More)
Communication is the key to effective teamwork regardless of whether the team members are humans or machines. Much of the communication that makes human teams so effective is non-verbal; they are able to recognize the actions that the other team members are performing and take their own actions in order to assist. A robotic team member should be able to(More)