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Now showing items 1-10 of 105
Single-site, noninvasive, blood pressure measurements at the ear using ballistocardiogram (BCG), and photoplethysmogram (PPG), and a low-power, reflectance-mode PPG SoC
(Massachusetts Institute of Technology, 2014)
This work presents a wearable congestive heart failure (CHF) monitor at the ear that uses the ballistocardiogram (BCG), electrocardiogram (ECG), and photoplethysmogram (PPG) to extract mean blood pressure up the Carotid ...
The scalable commutativity rule : designing scalable software for multicore processors
(Massachusetts Institute of Technology, 2014)
What fundamental opportunities for multicore scalability are latent in software interfaces, such as system call APIs? Can scalability opportunities be identified even before any implementation exists, simply by considering ...
Inertio-elastic focusing of bioparticles in a microchannel at ultra-high throughput
(Massachusetts Institute of Technology, 2014)
Many biological and industrial fluids are filled with micro-scale particles that can serve as "state markers" for real-world issues, such as human health and public infrastructure. In order to extract this valuable information ...
Automatic intrusion recovery with system-wide history
(Massachusetts Institute of Technology, 2014)
Compromises of our computer systems are inevitable. New software vulnerabilities are discovered and exploited daily, but even if the software is bug-free, administrators may inadvertently make mistakes in configuring ...
Broadband terahertz photonics
(Massachusetts Institute of Technology, 2014)
In recent years, quantum cascade lasers have emerged as mature semiconductor sources of light in the terahertz range, the frequency range spanning 1 to 10 THz. Though technological development has pushed their operating ...
Aggregation and influence in teams of imperfect decision makers
(Massachusetts Institute of Technology, 2014)
Bayesian hypothesis testing inevitably requires prior probabilities of hypotheses. Motivated by human decision makers, this thesis studies how binary decision making is performed when the decision-making agents use imperfect ...
Modeling generation and characterization of attosecond pulses
(Massachusetts Institute of Technology, 2014)
Generation of high-order harmonics has emerged as a powerful technique for the generation of broadband coherent radiation in the EUV regime. This has lead to the development of table-top EUV sources that can produce ...
Network management and control of flow-switched optical networks : joint architecture design and analysis of control plane and data plane with physical-layer impairments
(Massachusetts Institute of Technology, 2014)
Optical Flow Switching (OFS) that employs agile end-to-end lightpath switching for users with large transactions has been shown to be cost-effective and energy-efficient. However, whether it is possible to coordinate ...
On the power of (even a little) flexibility in dynamic resource allocation
(Massachusetts Institute of Technology, 2014)
Abstract We study the role of partial flexibility in large-scale dynamic resource allocation problems, in which multiple types of processing resources are used to serve multiple types of incoming demands that arrive ...
A parallel branch-and-bound algorithm for thin-film optical systems, with application to realizing a broadband omnidirectional antireflection coating for silicon solar cells
(Massachusetts Institute of Technology, 2014)
For the class of nondispersive, nonabsorbing, multilayer thin-film optical systems, this thesis work develops a parallel branch-and-bound computational system on Amazon's EC2 platform, using the Taylor model mathematical ...