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Analysis of potential implementations of pushback control at LaGuardia Airport
(Massachusetts Institute of Technology, 2015)
Implementations of surface traffic management strategies at congested airports have the potential to yield significant benefits, but must account for the constraints and objectives of multiple stakeholders. This thesis ...
Loss mechanisms in a highly loaded transonic axial turbine stage
(Massachusetts Institute of Technology, 2018)
Flow in a one-and-a-half stage highly loaded transonic axial turbine representative of future generation turbine technology is assessed for its role in loss generation. Steady and unsteady two-dimensional and three-dimensional ...
Survivability in Mars transit architectures : analysis framework for failure contingency strategies
(Massachusetts Institute of Technology, 2018)
Ambitious goals for exploring Mars in the coming decades will push human spaceflight into new territory in duration, distance and isolation. In this regime, loss of system integrity due to some failure becomes especially ...
A learning method for the approximation of discontinuous functions for stochastic simulations
(Massachusetts Institute of Technology, 2012)
Surrogate models for computational simulations are inexpensive input-output approximations that allow expensive analyses, such as the forward propagation of uncertainty and Bayesian statistical inference, to be performed ...
Reconfigurable satellite constellations for geo-spatially adaptive Earth observation missions
(Massachusetts Institute of Technology, 2012)
Continuously increasing demand for Earth observation in atmospheric research, disaster monitoring, and intelligence, surveillance and reconnaissance (ISR) has been met by responsive architectures such as unmanned aerial ...
Airline operating cost reduction through enhanced engine health analytics
(Massachusetts Institute of Technology, 2018)
Engine Health Management (EHM) is a comprehensive maintenance service offered by engine manufacturer Pratt & Whitney (PW) to its airline customers. In its current form, engine performance is monitored through recorded ...
Safe and robust reinforcement learning with neural network policies
(Massachusetts Institute of Technology, 2019)
Autonomous vehicles operate in safety-critical environments, but heavily rely on seemingly black-box predictions from Deep Neural Networks. The danger of this reliance arises from the vulnerability of neural networks. ...
Design and development of a high-altitude, in-flight-deployable micro-UAV
(Massachusetts Institute of Technology, 2012)
A micro-UAV ([mu] UAV) system was developed to provide maximum endurance for a small atmospheric sensing payload. The system, composed of a ([mu] UAV) and protective case, folds and fits into a MJU-10/B flare cartridge ...
Application of high resolution remote sensing and GIS techniques for evaluating urban infrastructure
(Massachusetts Institute of Technology, 2018)
City planners use information about a city's vegetation, urban morphology, and land-use to make decisions. The availability of high-resolution imagery is now expanding the type of information that can be used for planning ...
Stabilization of electron-scale turbulence by electron density gradient in NSTX
(Massachusetts Institute of Technology, 2015)
Microturbulence is present in all magnetic confinement fusion devices, and is believed to play a major role in driving anomalous transport levels that exceed neoclassical theory predictions. In NSTX, electron thermal ...