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Now showing items 11-20 of 21
Design of a high index contrast arrayed waveguide grating
(Massachusetts Institute of Technology, 2003)
Arrayed waveguide gratings (AWGs) are useful structures for the implementation of wavelength division multiplexing. The AWG consists of an input splitter, a dispersive waveguide array which creates the wavelength demultiplexing ...
Quantum mechanics on phase space : geometry and motion of the Wigner distribution
(Massachusetts Institute of Technology, 1998)
We study the Wigner phase space formulation of quantum mechanics and compare it to the Hamiltonian picture of classical mechanics. In this comparison we focus on the differences in initial conditions available to each ...
An axial force sensor for a prosthetic knee
(Massachusetts Institute of Technology, 1998)
Optimizing Memory-Corruption Security Defenses for Real-Time Systems
(Massachusetts Institute of Technology, 2022-05)
Real-Time Systems (RTSs) frequently suffer from memory-corruption attacks. Compared to general-purpose systems, RTSs differ because of their scheduling requirements. For this reason, many modern-day security defenses are ...
A spread spectrum sonar with noise-locked loop-based entrainment
(Massachusetts Institute of Technology, 2000)
Extensions and enhancements to the iLab heat transfer project site
(Massachusetts Institute of Technology, 2005)
The iLab Heat Transfer Project website started four years ago to enable web access to experiments related to movement of heat through transport processes. This thesis details improvements made to the site which extend and ...
Multi-Material Continuum Topology Optimization for Embodied Carbon Objectives
(Massachusetts Institute of Technology, 2021-06)
Recent years have seen an increase in research and practical interest that seek to lower the carbon footprint of infrastructure and building design. Typically, carbon emissions from the built environment are divided into ...
Bayesian Active Structure Learning for Gaussian Process Probabilistic Programs
(Massachusetts Institute of Technology, 2022-02)
What data should we gather to learn about the underlying structure of the world as quickly as possible, especially in cases where data is sparse or expensive to acquire? Structure learning techniques for Gaussian process ...
Geometry-Sensitive Swarm Algorithms
(Massachusetts Institute of Technology, 2023-02)
Insect colonies, birds, and fish successfully coordinate themselves to make collective decisions through purely local interactions. Their behaviors have inspired the development of algorithms for robotic swarms. Robotic ...
Closed Loop Control for a Piezoelectric-Resonator-Based DC-DC Power Converter
(Massachusetts Institute of Technology, 2022-02)
Miniaturization of power electronics reduces their cost and increases their scope of potential applications. Power electronics traditionally rely on magnetics for energy storage, but magnetics are fundamentally less efficient ...