Browsing Materials Science and Engineering - Ph.D. / Sc.D. by Title
Now showing items 705-724 of 1037
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Novel approaches to investigate behaviors of bacteria by atomic force microscopy and circulating tumor cells through microfluidics
(Massachusetts Institute of Technology, 2014)The adaptability and apparent ingenuity of renegade and intruding cells within the human body present formidable challenges in warding off disease. As the longevity of humans increases, cancer will afflict greater numbers, ... -
Novel materials for silicon based photonics
(Massachusetts Institute of Technology, 2018)A complete photonic chip must include the following components: a light source, usually lasers, an isolator, a waveguide, a modulator and a photodetector. Limited by material intrinsic properties, silicon alone cannot ... -
Novel materials, computational spectroscopy, and multiscale simulation in nanoscale photovoltaics
(Massachusetts Institute of Technology, 2013)Photovoltaic (PV) solar cells convert solar energy to electricity using combinations of semiconducting sunlight absorbers and metallic materials as electrical contacts. Novel nanoscale materials introduce new paradigms for ... -
Novel methods for fabrication of non-close-packed structures through colloidal self-assembly
(Massachusetts Institute of Technology, 2010)Colloidal dispersions are usually stabilized by interparticle electrostatic repulsion. However, strong electrostatic potentials prevent nucleation of new structures. When the electrostatic potential is strongly attractive, ... -
Novel molecular architectures from iptycene polymers
(Massachusetts Institute of Technology, 2007)This thesis explored the incorporation of iptycenes into polymers as a means to enhance the mechanical properties. Iptycene structures were targeted because they possess a unique structural property called internal molecular ... -
Novel optical sensors for chemical and biological applications
(Massachusetts Institute of Technology, 2019)Optical sensors have attracted a lot of interest due to their increased performance and ability to perform chemical identification through spectroscopy. Integrated sensors present the additional advantages of compactness ... -
Novel patterning techniques for manufacturing organic and nanostructured electronics
(Massachusetts Institute of Technology, 2007)Molecular organic semiconductors and nanometer size particles are two new classes of functional materials allowing fabrication of electronic devices on low-cost and large area substrates. Patterning these electronic materials ... -
Novel terahertz and nanophotonic lasers : theory, design, and fabrication
(Massachusetts Institute of Technology, 2015)In this thesis, we will explore numerical modeling and fabrication of laser sources. First, we demonstrate and distinguish experimentally the existence of special type of Fano resonances at k~~0 in a macroscopic two-dimensional ... -
Nucleation and growth of a single martensitic particle
(Massachusetts Institute of Technology, 1987) -
Nucleation of oxide inclusions during the solidification of iron.
(Massachusetts Institute of Technology, 1966) -
Nucleation of the isothermal martensitic transformation in iron-nickel-manganese alloys
(Massachusetts Institute of Technology, 1967)By means of quantitative metallography and electrical resistance measurements, the incubation period (time to form a detectable amount of martensite) and the initial nucleation rate have been determined as a function of ... -
Numerical modeling of interface dynamics and transport phenomena in transport-limited electrolysis processes
(Massachusetts Institute of Technology, 2006)Electrochemical reactions in materials and processes induce morphological instability on the cathode, which can lead to porous deposits or system failure. The growth of the protrusion is a complex phenomenon which involves ... -
Observations of creep in aluminum at elevated temperatures
(Massachusetts Institute of Technology, 1952) -
An off-lattice kinetic Monte Carlo method for the investigation of grain boundary kinetic processes
(Massachusetts Institute of Technology, 2016)Kinetic Monte Carlo (Kc) methods have the potential to extend the accessible timescales of off-lattice atomistic simulations beyond the limits of molecular dynamics by making use of transition state theory and parallelization. ... -
On the electrolytic nature of molten aluminum and rare earth oxides
(Massachusetts Institute of Technology, 2018)The electrolytic cell method and its application for Gibbs energy measurement in high temperature, concentrated ionic melts was investigated. Previous challenges related primarily to signal interpretation during decomposition ... -
Optical confinement and light guiding in high dielectric contrast materials systems
(Massachusetts Institute of Technology, 1997) -
Optical properties of nanostructured silicon-rich silicon dioxide
(Massachusetts Institute of Technology, 2006)We have conducted a study of the optical properties of sputtered silicon-rich silicon dioxide (SRO) thin films with specific application for the fabrication of erbium-doped waveguide amplifiers and lasers, polarization ... -
Optimization of the filament size in multifilamentary Nb₃Sn superconducting composite
(Massachusetts Institute of Technology, 1984) -
Optimizing the efficiency and cost of catalysts for sustainable energy applications : First-Principles Density Functional Theory studies
(Massachusetts Institute of Technology, 2019)In this thesis, I tackled, on two key fronts, the challenge of designing optimal catalysts for a sustainable future built on renewables. On the efficiency front, I studied electrochemical water-splitting, a reaction important ... -
Order of magnitude scaling of complex engineering problems, and its application to high productivity arc welding
(Massachusetts Institute of Technology, 1999)This thesis presents the Order of Magnitude Scaling methodology and uses it to determine the configuration and dominant forces in the weld pool during high productivity arc welding. This methodology was developed to ...
