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Active STPA : integration of hazard analysis into a Safety Management System Framework
(Massachusetts Institute of Technology, 2019)
This dissertation describes a new approach to integrate a hazard analysis into Safety Management Systems (SMS). This new engineering process guides safety managers and analysts in the identification of a migration toward ...
Decision uncertainty minimization and autonomous information gathering
(Massachusetts Institute of Technology, 2013)
Over the past several decades, technologies for remote sensing and exploration have become increasingly powerful but continue to face limitations in the areas of information gathering and analysis. These limitations affect ...
Ultra-short nacelles for low fan pressure ratio propulsors
(Massachusetts Institute of Technology, 2014)
This thesis addresses the uncharted inlet and nacelle design space for low pressure ratio fans for advanced aeroengines. A key feature in low fan pressure ratio (FPR) propulsors with short inlets and nacelles is the increased ...
The impact of aircraft design reference mission on fuel efficiency in the air transportation system
(Massachusetts Institute of Technology, 2014)
Existing commercial aircraft are designed for high mission flexibility, which results in decreased fuel efficiency throughout the operational life of an aircraft. The objective of this research is to quantify the impact ...
Optimizations for sampling-based motion planning algorithms
(Massachusetts Institute of Technology, 2014)
Sampling-basedalgorithms solve the motion planning problem by successively solving several separate suproblems of reduced complexity. As a result, the efficiency of the sampling-based algorithm depends on the complexity ...
Adaptive communication networks for heterogeneous teams of robots
(Massachusetts Institute of Technology, 2014)
Seemingly, the era of ubiquitous connectivity has arrived, with smart phones, tablets, and small computing devices bringing internet straight to our fingertips - or has it? Two thirds of the world still does not have access ...
Extension of the peridynamic theory of solids for the simulation of materials under extreme loadings
(Massachusetts Institute of Technology, 2014)
The simulation of materials exposed to extreme loads, as is relevant in many areas of engineering, including protection materials, impact damage in turbine engines and high velocity impact in space, remains one of the key ...
Simulation and design optimization of wave propagation in heterogeneous materials
(Massachusetts Institute of Technology, 2014)
Propagation of waves through heterogeneous structured materials has been the focus of considerable research in recent years. These materials consist of quasi periodic geometries combining two or more piecewise homogeneous ...
Optical communications for small satellites
(Massachusetts Institute of Technology, 2015)
Small satellites, particularly CubeSats, have become popular platforms for a wide variety of scientific, commercial and military remote sensing applications. Inexpensive commercial o the shelf (COTS) hardware and relatively ...
Timekeeping and accelerometry with robust light pulse atom interferometers
(Massachusetts Institute of Technology, 2015)
Light pulse atom interferometry (LPAI) is a powerful technique for precision measurements of inertial forces and time. Laboratory LPAI systems currently achieve state-ofthe- art acceleration sensitivity and establish the ...