Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Atmospheric Effects On Radar/Ladar Detection Of Seismic Activity, Michelle Frances Via
Atmospheric Effects On Radar/Ladar Detection Of Seismic Activity, Michelle Frances Via
Browse all Theses and Dissertations
This thesis investigates how well ground vibrations can be detected at ladar or radar wavelengths and how the atmosphere may impact the observation of such activity. First understanding atmospheric hindrances at each of these wavelengths is helpful to prioritize by those yielding best transmission results. A prerequisite to the outdoor field experiment performed for this study involves analyzing atmospheric effects characterization at six probable wavelengths using the Laser Environmental Effects Definition and Reference tool (LEEDR) developed by the Air Force Institute of Technology's (AFIT) Center for Directed Energy (CDE). These wavelengths, selected from the shortwave infrared and microwave portions of …
Dna-Nucleobase Guanine As Passivation/Gate Dielectric Layer For Flexible Gfet-Based Sensor Applications, Adrienne Dee Williams
Dna-Nucleobase Guanine As Passivation/Gate Dielectric Layer For Flexible Gfet-Based Sensor Applications, Adrienne Dee Williams
Browse all Theses and Dissertations
The main goal of this dissertation was two-fold: first, to study and design a graphene-based transistor environmentally friendly by replacing a standard substrate and gate dielectric with different flexible/rigid and biodegradable films and secondly, to study their effects on graphene's charge carrier mobility. A thin film of deoxyribonucleic acid nucleobase purine guanine deposited by physical vapor deposition onto up to ten layers of graphene that were transferred onto various rigid and flexible substrates was characterized more thoroughly. Several test platforms were fabricated with guanine 1) as a standalone gate dielectric, 2) as the control and 3) as a passivation layer …