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Fabrication and characterization of sintered porous glass emitters for electrospray propulsion
(Massachusetts Institute of Technology, 2014)
Ionic electrospray thrusters are promising candidates for CubeSat propulsion systems in space, due to their low power requirement and small form factor. Current technology has demonstrated thrust levels of 10 - 40[mu]N, ...
Fault detection, isolation, and recovery for autonomous parafoils
(Massachusetts Institute of Technology, 2014)
Autonomous precision airdrop systems are widely used to deliver supplies to remote locations. This aerial delivery method provides a safety and logistical advantage over traditional ground- or helicopter-based payload ...
Computationally efficient Gaussian Process changepoint detection and regression
(Massachusetts Institute of Technology, 2014)
Most existing GP regression algorithms assume a single generative model, leading to poor performance when data are nonstationary, i.e. generated from multiple switching processes. Existing methods for GP regression over ...
Real-time predictive modeling and robust avoidance of pedestrians with uncertain, changing intentions
(Massachusetts Institute of Technology, 2014)
To plan safe trajectories in urban environments, autonomous vehicles must be able to interact safely and intelligently with other dynamic agents. Due to the inherent structure of these environments, drivers and pedestrians ...
Development of an incremental and iterative risk reduction facility for robotic servicing and assembly missions
(Massachusetts Institute of Technology, 2014)
A means for reducing the risk for an on-orbit robotic servicing and assembly mission through the development of a series of testbeds that build successively upon one another is investigated. Robotic Servicing and Assembly ...
Analysis of urban air transportation operational constraints and customer value attributes
(Massachusetts Institute of Technology, 2018)
Urban Air Mobility (UAM) is a concept that proposes to provide short-range transportation solutions that enable customers to travel point-to-point more quickly than they can today using cars or public transportation. The ...
A body force model for cavitating inducers in rocket engine turbopumps
(Massachusetts Institute of Technology, 2014)
Modern rocket engine turbopumps utilize cavitating inducers to meet mass and volume requirements. Rotating cavitation and higher order cavitation instabilities have frequently been observed during inducer testing and ...
Large-scale simulation of the mechanical response of porcine cranial bone
(Massachusetts Institute of Technology, 2017)
Biofidelic computer models are an invaluable tool in the understanding injury biomechanics. One crucial feature of these models is the ability to accurately capture the response of the individual tissues comprising the ...
Systems thinking applied to automation and workplace safety
(Massachusetts Institute of Technology, 2017)
This thesis presents the results of a study to compare Systems-Theoretic Process Analysis (STPA), a hazard analysis methodology based on a new model of accident causation called Systems-Theoretic Accident Model and Processes ...
Ranking CubeSat communication systems using a value-centric framework
(Massachusetts Institute of Technology, 2013)
This work focuses on the application of a streamlined version of Multi-Attribute Tradespace Exploration (MATE) as a first-order analysis tool to aid in the selection of CubeSat communication systems. As CubeSats have become ...