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Origami-inspired nanofabrication utilizing physical and magnetic properties of in situ grown carbon nanotubes
(Massachusetts Institute of Technology, 2010)
Carbon nanotubes (CNTs), in particular the vertically-aligned variety grown through a plasma enhanced chemical vapor deposition (PECVD)-based process, are highly versatile nanostructures that can be used in a variety of ...
Dynamic reduced order modeling of entrained flow gasifiers
(Massachusetts Institute of Technology, 2010)
Gasification-based energy systems coupled with carbon dioxide capture and storage technologies have the potential to reduce greenhouse gas emissions from continued use of abundant and secure fossil fuels. Dynamic reduced ...
Improved source code editing for effective ad-hoc code reuse
(Massachusetts Institute of Technology, 2011)
Code reuse is essential for productivity and software quality. Code reuse based on abstraction mechanisms in programming languages is a standard approach, but programmers also reuse code by taking an ad-hoc approach, in ...
Unified framework to design efficient membrane distillation for brine concentration
(Massachusetts Institute of Technology, 2017)
Increasing regulations requiring industrial zero-liquid discharge necessitate the development of efficient desalination technologies for treating high salinity brine. Membrane distillation (MD) is promising for such ...
Development and translation of label-free functional microscopy based on optical coherence tomography
(Massachusetts Institute of Technology, 2017)
Optical coherence tomography (OCT), an imaging modality based on low coherence interferometry, can be extended to obtain various endogenous functional contrasts. This thesis focuses on the development and translation of ...
Desalination of water by vapor transport through hydrophobic nanopores
(Massachusetts Institute of Technology, 2014)
Although Reverse osmosis (RO) is the state-of-the-art desalination technology, it still suffers from persistent drawbacks including low permeate flux, low selectivity for non-ionic species, and lack of resistance to chlorine. ...
Harmonic poly-actuator : design and control of a new piezoelectric mechanism
(Massachusetts Institute of Technology, 2015)
Piezoelectric devices, e.g. piezoelectric stack actuators, have several salient features inherent to their structure. They are efficient, have a high bandwidth, and their capacitive loading allows for static loads to be ...
Multiphase oil transport at complex micro geometry
(Massachusetts Institute of Technology, 2011)
Dynamic sealing systems, such as mechanical face seals and piston rings in internal combustion engines are critical components of modern machines. These sealing systems present a unique challenge in controlling the lubricant ...
3D assembly and actuation of nanopatterned membranes using nanomagnets
(Massachusetts Institute of Technology, 2011)
A new method for aligning and actuating membranes for 3D nano-assembly based on the interactions of nanomagnets has been developed. Arrays of nanopatterned magnetic material are integrated onto thin-film membranes. It is ...
Magnetorheological fluids for extreme environments : stronger, lighter, hotter
(Massachusetts Institute of Technology, 2011)
The controllable properties of magnetorheological (MR) fluids offer reliable and efficient actuation means to a number of far-ranging engineering applications. In this thesis we are motivated by the applications of MR ...