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Light-matter interactions of two-dimensional materials and the coupled nanostructures
(Massachusetts Institute of Technology, 2017)
Two-dimensional (2D) materials have gained increasing attention due to their unique and extraordinary electrical and optoelectronic properties. These properties can be largely attributed to the fundamental light-matter ...
Towards unified biomedical modeling with subgraph mining and factorization algorithms
(Massachusetts Institute of Technology, 2015)
This dissertation applies subgraph mining and factorization algorithms to clinical narrative text, ICU physiologic time series and computational genomics. These algorithms aims to build clinical models that improve both ...
Engineering of integrated devices on electro-optical chip: grating couplers, algorithms, and switches
(Massachusetts Institute of Technology, 2015)
The technology of modem purely electrical computers requires more electrical wiring for intra-chip and inter-chip communications as the number of cores increases. Consequently, energy consumption increases due to heat ...
Improving learning experience in MOOCs with educational content linking
(Massachusetts Institute of Technology, 2017)
Since the first MOOC (Massive Open Online Course) in 2011, there have been over 4,000 MOOCs on various subjects on the Web, serving over 35 million learners. MOOCs have shown the ability to transcend time and space, ...
Polynomial identity testing of read-once oblivious algebraic branching programs
(Massachusetts Institute of Technology, 2014)
We study the problem of obtaining efficient, deterministic, black-box polynomial identity testing algorithms (PIT) for algebraic branching programs (ABPs) that are read-once and oblivious. This class has an efficient, ...
Development, testing, and application of quantitative oxygenation imaging from magnetic susceptibility by MRI
(Massachusetts Institute of Technology, 2014)
The healthy brain consumes 20% of total oxygen used by the body under normal conditions. Continuous oxygen delivery to neural tissue is needed to maintain normal brain function and viability. Reliable measurements of brain ...
Learning connections in financial time series
(Massachusetts Institute of Technology, 2014)
Much of modern financial theory is based upon the assumption that a portfolio containing a diversified set of equities can be used to control risk while achieving a good rate of return. The basic idea is to choose equities ...
Magnetic resonance imaging contrast agents for chemical sensing
(Massachusetts Institute of Technology, 2014)
Magnetic resonance imaging (MRI) is frequently used for examining the human body. MRI contrast agents currently used in the clinic assist physicians in locating problematic areas, but other tools are needed to interrogate ...
SC²EPTON : high-performance and scalable, low-power and intelligent, ordered Mesh on-chip network
(Massachusetts Institute of Technology, 2015)
Over the last few decades, hindrances to performance and voltage scaling led to a shift from uniprocessors to multicore processors, to the point where the on-chip interconnect plays a larger role in achieving the desired ...
Engineering strong-field phenomena : from attosecond pulse characterization to nanostructured electron emitters
(Massachusetts Institute of Technology, 2015)
Strong-field phenomena are a driving force behind the latest innovations in ultrafast science. As ultrafast laser sources improve in terms of peak pulse energy and wavelength tunability, applications that utilize high peak ...