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Now showing items 3831-3840 of 4211
Investigation of high linearity DFB lasers for analog communications
(Massachusetts Institute of Technology, 1998)
The Zero Touch Experience : intent based contextual morphing on mobile devices using localized keyword distributions
(Massachusetts Institute of Technology, 2010)
With the rise of smart phones integrated with GPS devices, we have seen the advent of location-based contextual services. "Contextual" in this sense, refers to a simple query of nearby points of interest based on the current ...
CourseDiff : a system for identifying and reporting changes to course websites
(Massachusetts Institute of Technology, 2010)
CourseDiff is a prototype system that periodically samples course websites and notifies users via email when it identifies changes to those sites. The system was developed after conducting a study of 120 web pages from 50 ...
Portfolio optimization with transaction costs and preconceived portfolio weights
(Massachusetts Institute of Technology, 2009)
In the financial world, many quantitative investment managers have developed sophisticated statistical techniques to generate signals about expected returns from previous market data. However, the manner in which they apply ...
Development of a high-efficiency solar micro-inverter
(Massachusetts Institute of Technology, 2009)
In typical solar power installations, multiple modules are connected to the grid through a single high-power inverter. However, an alternative approach is to connect each solar module directly to the grid through a ...
An analog and digital data acquisition system for Non-Intrusive Load Monitoring
(Massachusetts Institute of Technology, 2009)
Non-Intrusive Load Monitoring (NILM) is a method for characterizing and monitoring discrete loads connected to a power distribution system. This can include a ship, a car, or a utility distribution system. The entire concept ...
Using a gimbal to calibrate an inertial measurement unit
(Massachusetts Institute of Technology, 2005)
In this thesis, an inertial measurement unit (IMU) consisting of 3 accelerometers and 3 rate gyros is created using off-the-shelf sensors from STMicro and Analog Devices. A novel technique for calibrating the orientation, ...
Understanding program structure and behavior
(Massachusetts Institute of Technology, 2006)
A large software system usually has structure in it. Several functions work together to accomplish a certain task, and several tasks are grouped together to perform a bigger task. In order to understand this division, one ...
Design and evaluation of a 2-D planar therapeutic ultrasound phased array
(Massachusetts Institute of Technology, 2006)
Focused ultrasound continues to be investigated as an exciting technique for several medical therapy applications including tissue ablation. Phased array transducers serve as important devices for delivering the high ...
HARBOR : an integrated approach to recovery and high availability in an updatable, distributed data warehouse
(Massachusetts Institute of Technology, 2006)
Any highly available data warehouse will use some form of data replication to ensure that it can continue to service queries despite machine failures. In this thesis, I demonstrate that it is possible to leverage the data ...