Browsing by Title
Now showing items 4597-4616 of 17413
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(Nanophotonics, 2019-08)A periodic metagate is designed on top of a boron nitride-graphene heterostructure to modulate the local carrier density distribution on the monolayer graphene. This causes the bandgaps of graphene surface plasmon polaritons ...
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(2009-12-07)Department: Interdisciplinary Materials ScienceElectro-osmotic (EO) pumps directly convert electrical energy into fluids’ kinetic energy, which have many advantages such as a simple and compact structure, no mechanical moving parts, and easy integration. In general, ...
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(2006-06-01)Department: Interdisciplinary Materials ScienceSingle-event burnout in power diodes is studied using coupled electro-thermal simulations. A two-dimensional rectangular diode structure is designed and steady-state electrical characteristics are simulated. Single-event ...
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(2013-02-07)Department: ChemistryThe increase in demand for energy has made Photosystem I (PSI), which can convert solar energy into a charge separation with an incredible efficiency, a topic of great research interest. By analyzing the PSI energy conversion ...
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(2016-04-11)Department: ChemistryNew technologies for model biological systems aid in drug development and toxicology by providing an in vitro environment that closely mimics in vivo conditions but require new instrumentation to meet needs in monitoring ...
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(2009-04-10)Department: ChemistryThe past decade has witnessed the birth of the field of Metabolomics, which aims to study the "chemical fingerprints" left behind by specific cellular processes. The chemical fingerprints themselves consist of the totality ...
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(2020-05-19)Department: Interdisciplinary Materials ScienceThe advent of the lithium ion battery enabled a revolution in wireless electronic devices. The next wave of wireless devices, from smart watches to biosensors, are smaller, and often embedded within existing infrastructures ...
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(2022-03-25)Department: ChemistryElectrochemical mediators, redox-active compounds used as electron transfer shuttles, are required for various electrochemical applications such as fuel or photovoltaic cells and biosensors. Biosensors, in particular, ...
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(2017-10-03)Department: Mechanical EngineeringMetamaterials, which derive their optical properties from subwavelength structures, have emerged in recent years as a promising way to tune refractive index and achieve optical properties not present in natural materials. ...
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(2020-03-24)Department: PhysicsThe E2/M1 mixing ratios have been measured for transitions from states in the one phonon gamma-vibrational bands to states in the ground state bands of of the neutron rich, even-even, deformed isotopes 102,104,106,108Mo, ...
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(2006-12-04)Department: PhysicsIn this dissertation we present our work on developing new beam monitoring methods for linear accelerators and free-electron lasers. Our current work concentrates on the diffraction radiation based beam monitoring technique ...
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Electron Beams from Needle Photocathodes and a New Theory of the Smith-Purcell Free-Electron Laser (2007-02-15)Department: PhysicsA promising source of radiation in the important terahertz (THz) region of the spectrum is the Smith-Purcell free-electron laser (SPFEL). This dissertation presents a new theory of the SPFEL, taking into account dispersion ...
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(2011-03-21)Department: PhysicsThis dissertation presents the study of electron field emission from nanostructures using a first-principles computational framework. Field emission is studied under various conditions such as laser illumination, spin ...
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(2021-08-13)Department: Interdisciplinary Materials ScienceElectron transfer between biomolecules and electrode surfaces is greatly important in the development and understanding of bioelectrochemical systems. This dissertation studies two bioelectrochemical systems: Photosystem ...
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(2017-09-25)Department: PhysicsNovel nano electronic devices are necessary in order to continue the advancement of computational power of microprocessors in the next decades. On the theory side, it is an open boundary system and usually modeled as a ...
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(2011-08-04)Department: ChemistryBisAMidine chiral proton catalysts are a class of mixed Brønsted acid/Brønsted base reagents amenable to both electronic and steric modification. A counterintuitive approach in which the creation of more Brønsted basic ...
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(2008-04-28)Department: Interdisciplinary Materials ScienceSilicon carbide has been preferred over other wide band-gap semiconductors for high power applications because of its unique ability to grow a thermal oxide, challenges lie in the quality of the dielectric and of the ...
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(Journal of Electronic Publishinghttp://www.journalofelectronicpublishing.org/, 1999)The new world of digital information requires a new way of providing access to that information — while keeping the copyright backbone. It might be technically easier to create a digital infrastructure without copyright: ...
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(2009-07-29)Department: ChemistryThe determination of electrophoretic properties and the size separation of monolayer protected clusters (MPCs) are presented in this thesis. MPCs are metallic nanoparticles encapsulated in a protecting thiolate monolayer. ...
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(2018-03-22)Department: NeuroscienceNEUROSCIENCE Electrophysiological Signatures of Multisensory Temporal Processing in the Human Brain David Michael Simon Dissertation under the direction of Professor Mark T. Wallace Events in the natural world frequently ...