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Now showing items 31-40 of 94
Modeling the impact of fuel composition on aircraft engine NOx̳, CO and soot emissions
(Massachusetts Institute of Technology, 2020)
Aircraft NO[subscript x], CO and soot emissions contribute to climate change and lead to negative air quality impacts. With the aim of quantifying the effects of fuel composition on NO[subscript x], CO and soot emissions, ...
Learned functions for perceptually informed robot navigation
(Massachusetts Institute of Technology, 2020)
While existing robotic systems predominantly rely on geometric information to inform robot navigation, non-geometric information, such as object-level maps and overhead imagery, provide rich navigation cues that can be ...
Leveraging prior information for real-time monocular simultaneous localization and mapping
(Massachusetts Institute of Technology, 2021)
Monocular cameras are powerful sensors for a variety of computer vision tasks since they are small, inexpensive, and provide dense perceptual information about the surrounding environment. Efficiently estimating the pose ...
Simulation of Lees-Dorodnitsyn hypersonic laminar boundary layers with temperature-dependent properties
(Massachusetts Institute of Technology, 2021)
The Lees-Dorodnitsyn (L-D) boundary layer equations for 2D, laminar hypersonic boundary layer flows and an assumption of an isentropic external flow are used to represent both flows over a flat plate with an external ...
An investigation of nafion electrospray emitter tips
(Massachusetts Institute of Technology, 2020)
Electrospray propulsion development is limited in large part by the materials with which emitters are manufactured. Emitters must transport ionic liquid to their apex and hold a shape which allows menisci to form and emit ...
Automating Flow of a Material Handling System
(Massachusetts Institute of Technology, 2021)
Amazon uses a system of interconnected manned work processing stations linked by conveyances that route items from different parts of the warehouse into a single order for packing. This thesis will examine one such system, ...
IMU-based estimation of human lower body kinematics and applications to extravehicular operations
(Massachusetts Institute of Technology, 2021)
The use of body-worn inertial measurement units (IMUs) as an alternative to traditional human optical motion capture (OMC) techniques has gained increasing attention over the last twenty years. In contrast to traditional ...
Plan summarization for decision support in human team planning
(Massachusetts Institute of Technology, 2020)
Humans often make their plans in groups, sharing information, ideas, and preferences before arriving at a final plan. Human team planning sessions, however, often suffer from inefficiencies such as getting off topic, losing ...
Systems analysis of urban air mobility operational scaling
(Massachusetts Institute of Technology, 2020)
Urban air mobility (UAM) refers to a set of vehicles and operational concepts that provide on-demand or scheduled air transportation services for passengers and cargo within a metropolitan area. Prior UAM systems based on ...
Provably convergent anisotropic output-based adaptation for continuous finite element discretizations
(Massachusetts Institute of Technology, 2020)
The expansion of modern computing power has seen a commensurate rise in the reliance on numerical simulations for engineering and scientific purposes. Output error estimation combined with metric-based mesh adaptivity ...