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Engineering a robotic exoskeleton for space suit simulation
(Massachusetts Institute of Technology, 2013)
Novel methods for assessing space suit designs and human performance capabilities are needed as NASA prepares for manned missions beyond low Earth orbit. Current human performance tests and training are conducted in space ...
Climate impact of aviation NOx̳ emissions : radiative forcing, temperature, and temporal heterogeneity
(Massachusetts Institute of Technology, 2014)
Aviation NOx emissions are byproducts of combustion in the presence of molecular nitrogen. In the upper troposphere, NOx emissions result in the formation of O₃ but also reduce the lifetime of CH4 , causing an indirect ...
Optimal trajectory design under uncertainty
(Massachusetts Institute of Technology, 2012)
Reference trajectory design for atmospheric reentry vehicles can be accomplished through trajectory optimization using optimal control techniques. However, this method generally focuses on nominal vehicle performance and ...
Incremental sampling based algorithms for state estimation
(Massachusetts Institute of Technology, 2012)
Perception is a crucial aspect of the operation of autonomous vehicles. With a multitude of different sources of sensor data, it becomes important to have algorithms which can process the available information quickly and ...
Development of techniques for rapidly assessing the local air quality impacts of airports
(Massachusetts Institute of Technology, 2012)
The combustion of fossil fuels for aviation activity harms air quality and human health near airports through the production of PM2.5. Currently, dispersion models can assess these local-scale (distances ~10 km) impacts, ...
Fast methods for scheduling with applications to real-time systems and large-scale, robotic manufacturing of aerospace structures
(Massachusetts Institute of Technology, 2013)
Across the aerospace and automotive manufacturing industries, there is a push to remove the cage around large, industrial robots and integrate right-sized, safe versions into the human labor force. By integrating robots ...
Resource optimization algorithms for an automated coordinated CubeSat constellation
(Massachusetts Institute of Technology, 2015)
We present and analyze the performance of two algorithms that plan and coordinate activities for a resource-constrained Earth-observing CubeSat constellation. The first algorithm is the Resource-Aware SmallSat Planner ...
Post-combustion emissions control for aero-gas turbine engines
(Massachusetts Institute of Technology, 2018)
Aviation NO[subscript x] emissions have an impact on air quality and climate change, where the latter is magnified due to the higher sensitivity of the upper troposphere and lower stratosphere. In the aviation industry, ...
Toward optimal motion planning for dynamic robots : applications on-orbit
(Massachusetts Institute of Technology, 2019)
Robotic motion planning is a well-studied field at the intersection of optimal control, artificial intelligence, and applied mechanics. Methods for robots without dynamics are well-studied and are often practical for ...
Evaluation of phase change material thermal control architectures for a WaferSatellite using integrated design and optimization techniques
(Massachusetts Institute of Technology, 2019)
Small satellites such as CubeSats are changing the satellite industry by offering low-cost access to space. The concept of WaferSat - a satellite consisting of only a single silicon wafer - seeks to take this paradigm one ...