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Now showing items 3861-3870 of 4213
Dynamic pixel selection in free-space photon-counting optical communication systems for the exploitation of excess channel capacity
(Massachusetts Institute of Technology, 2009)
Atmospheric turbulence in free-space optical communications turns signal demodulation and decoding into a multimode problem as wavefronts of the transmitting laser beams are warped spatially past the desired form of a ...
Three dimensional terrain editing in StarLogo TNG
(Massachusetts Institute of Technology, 2009)
StarLogo TNG is a block based programming language designed to create models and simulations that are used to help middle and high school students understand mathematical and scientific concepts. However, there is a desire ...
A collaborative video-conferencing system for improving care during neonatal transport
(Massachusetts Institute of Technology, 2009)
The need for real-time telemedicine to support urgent care is growing. The primary focus of our work has been on improving the care provided to critically ill infants born at community hospitals who need to be transported ...
Design and evaluation of a benchmark for main memory transaction processing systems
(Massachusetts Institute of Technology, 2009)
We designed a diverse collection of benchmarks for Main Memory Database Systems (MMDBs) to validate and compare entries in a programming contest. Each entrant to the contest programmed an indexing system optimized for ...
Calibration, feature extraction and classification of water contaminants using a differential mobility spectrometer
(Massachusetts Institute of Technology, 2006)
High-Field Asymmetric Waveform Ion Mobility Spectrometry (FAIMS) is a chemical sensor that separates ions in the gaseous phase based on their mobility in high electric fields. A threefold approach was developed for both ...
Improving search quality of the Google search appliance
(Massachusetts Institute of Technology, 2009)
In this thesis, we describe various experiments on the ranking function of the Google Search Appliance to improve search quality. An evolutionary computation framework is implemented and applied to optimize various parameter ...
Rainbow Rummy : a Web-based game for vocabulary acquisition using computer-directed speech
(Massachusetts Institute of Technology, 2009)
Acquiring vocabulary in a foreign language is a long process which often involves the use of flashcards or cycling through long word lists for memorization. While many students learn effectively in this way, research at ...
Second Skin : motion capture with actuated feedback for motor learning
(Massachusetts Institute of Technology, 2010)
Second Skin aims to combine three-dimensional (3D) motion tracking with tactile feedback for the purpose of improving users' motor-learning ability. Such a system would track a user's body and limb movements as he or she ...
Mathematical methods for non-intrusive load monitoring
(Massachusetts Institute of Technology, 2010)
The calculation of the Discrete Fourier Transform (DFT) of a discrete time signal is a fundamental problem in discrete-time signal processing. This thesis presents algorithms that use methods from number theory and algebra ...
Effects of diversity routing on TCP performance in networks with stochastic channels
(Massachusetts Institute of Technology, 2010)
Transmission Control Protocol (TCP) is a widely used transport protocol in today's multimedia applications. TCP was originally designed for wired networks, and its performance is highly degraded in networks with stochastically ...