Search
Now showing items 1-10 of 56
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. ...
Electromechanical systems to enhance the usability and diagnostic capabilities of ultrasound imaging
(Massachusetts Institute of Technology, 2014)
Ultrasound is used extensively in medicine to non-invasively examine soft tissues. Compared to computed-tomography (CT) scanning or X-ray imaging, ultrasound is lower-cost, more portable, real time, and subjects neither ...
High throughput 3D optical microscopy : from image cytometry to endomicroscopy
(Massachusetts Institute of Technology, 2014)
Optical microscopy is an imaging technique that allows morphological mapping of intracellular structures with submicron resolution. More importantly, optical microscopy is a technique that can readily provide images with ...
Advanced materials for enhanced condensation heat transfer
(Massachusetts Institute of Technology, 2014)
This thesis investigates the use of three classes advanced materials for promoting dropwise condensation: 1. robust hydrophobic functionalizations 2. superhydrophobic textures 3. lubricant-imbibed textures We first define ...
Development of multiscale models for the performance of the gas and oil seals in rotary engines
(Massachusetts Institute of Technology, 2014)
Rotary engines offer higher power density, fewer parts and lower vibrations than conventional reciprocating piston engines. However, rotary engines are more difficult to seal because of the rotor shape which leads to higher ...
Mechanisms of reorientation in phytoplankton : fluid shear, surface interactions, and gravitaxis
(Massachusetts Institute of Technology, 2014)
Phytoplankton are a vital part of the ecosystem in oceans and lakes, where they form the base of the food chain and have major global impacts, for example producing 50% of the planet's oxygen. Phytoplankton can also serve ...
Predictive design and fabrication of complex micro and nano patterns via wrinkling for scalable and affordable manufacturing
(Massachusetts Institute of Technology, 2014)
There is a demonstrated need for scalable and affordable manufacturing of complex micro and nano scale structures for applications such as fluidics-based medical diagnostics and photonicsbased sensing. Although high-rate ...
Affinity Flow Fractionation for label-free cell sorting
(Massachusetts Institute of Technology, 2014)
Capture and isolation of flowing cells from body fluids such as peripheral blood, bone marrow or pleural effusion has enormous implications in diagnosis, disease monitoring, and drug testing. However, in many situations ...
Enhancing retarding potential analyzer energy measurements with micro-aligned electrodes
(Massachusetts Institute of Technology, 2014)
Plasmas are ionized gases, and constitute a large fraction of the known universe. For example, solar wind is a plasma that emanates from the sun reaching the Earth's magnetosphere. At times these ionized species cause ...
Towards predicting dynamics in turbulent premixed combustion using PIV-PLIF measurements of flow-flame microstructure
(Massachusetts Institute of Technology, 2014)
Combustion dynamics are critical to the development of high-efficiency, low-emission and fuel-flexible combustion systems used for propulsion and power generation. Predicting the onset of dynamics remains a challenge because ...