Index Catalog // ScholarsArchive@OSU

Degradation of N-Nitrosodimethylamine Using Photo-Catalysis and Microreactor Technology : Experimentation and Modeling

Creator:: Omar, Mohamed
Abstract:: The cleanliness of water is a major issue with regards to humanity's continued survival. The chlorination and chloro-amination of water is essential to the creation of microbiologically clean water. However these processes also give rise to oxidative byproducts such as nitrosamines. In particular, due to its high toxicity, N-Nitrosodimethylamine (NDMA)...
Resource Type:: Masters Thesis

Development of Temperature-Stable Relaxor Dielectrics for High Energy Density Capacitor Applications

Creator:: McCue, Connor
Abstract:: High performance dielectric materials are needed for high power SiC- or GaN-based electronics which combine the best features of high energy density, low dielectric loss and high reliability and for advanced high-speed and high-voltage energy storage where temperature stability plays an important role in material properties. An ideal capacitor for...
Resource Type:: Masters Thesis

A shared-autonomy heavy-lift assistive robot for manufacturing

Creator:: Finley, Taylor M.
Abstract:: Automating pick-and-place operations for large steel castings in a foundry is challenging, particularly from a perception point of view. Accurately estimating the identity and orientation of a given part is an open and complex problem, especially if that part sits in a bin of very similar parts. The problem is...
Resource Type:: Masters Thesis

Dynamic biasing for ring amplification

Creator:: Farahbakhshian, Farshad
Abstract:: New amplifier architectures are presented using non-traditional methods of biasing. Time-based dynamic biasing and signal-based dynamic biasing are discussed in the context of new architectures. This includes a new form of ring amplification with a dynamic deadzone, allowing for a structure whose coarse path does not consume static power.
Resource Type:: Masters Thesis

Material development for thin-film transistors

Creator:: Archila, Kevin Alexander
Abstract:: The focus of this thesis is developing materials for thin-film transistors (TFTs). Cu₃SbS₄ is explored as p-channel layer. Cu₃SbS₄ TFTs show p-type, depletion-mode behavior with a small amount of gate-controlled modulation of the channel conductance. This behavior is consistent with Hall measurements indicating a mobility of 17 cm²V⁻¹s⁻¹ and hole...
Resource Type:: Masters Thesis

Designing Dielectric Materials through Complex Metal Oxides

Creator:: Nikkel, Jason W.
Abstract:: This dissertation demonstrated that the electrical properties of complex oxide-based perovskite materials could be controlled through the careful modification of both material composition and structure. This was first shown through the modification of lead zirconate titanate (Pb(Zr0.52Ti0.48)O3, PZT) solid solutions with bismuth indate (BiInO3, BI) where the relative stability of...
Resource Type:: Dissertation
Full Text:: . I would also like to thank Professor Michelle Dolgos for her time as my primary advisor and her

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Creator:: Chiriboga Novillo, Omar Guillermo
Abstract:: Marine diatoms are unicellular photosynthetic organisms that produce unique nanomaterials, energy dense lipid-molecules, and specialty carbohydrate molecules that can be all extracted from a single microorganism. The centric marine diatom Cyclotella sp. was used as a model organism for cultivation in a biorefinery system, where multiple co-products can be harvested...
Resource Type:: Dissertation

Probing Aqueous Ion-Pairing and Speciation of Group V Polyoxometalates

Creator:: Sures, Dylan J.
Abstract:: Polyoxometalates are discrete anionic oxo clusters of the Group V and VI transition metals that can be conceptualized as molecular metal oxides. Because they are pairable with any alkali cation, a great deal of fundamental chemistry can be gleaned from their study, including solubility trends and insight into cation binding...
Resource Type:: Dissertation

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Creator:: Mendez, Jose Eduardo
Abstract:: The ternary system (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ (BNT-BKT-BMgT) was explored along the [75-(x 2) ]Bi₀.₅Na₀.₅TiO₃ - [25-(x 2)]Bi₀.₅K₀.₅TiO₃ - [x]Bi(Mg₀.₅Ti₀.₅)O₃ composition line. Thin films were fabricated using chelated mixing route solutions spin cast onto platinized silicon substrates. Processing parameters such as: excess cation molar%, solution molality, and crystallization temperatures, for composition where x=0,...
Resource Type:: Masters Thesis

Electron diffraction of molecules in superfluid helium droplets

Creator:: He, Yunteng
Abstract:: In this dissertation, I describe the experimental investigation in electron diffraction of molecules in superfluid helium droplets. The project is part of an overall scheme called ‘single molecule serial electron diffraction imaging’ (SS-EDI), with the ultimate goal of building an apparatus to determine atomic structures from oriented macromolecules. In SS-EDI,...
Resource Type:: Dissertation
Full Text:: my thesis committee: Dr. Joseph Beckman, Dr. Valery Voinov, Dr. Michelle Dolgos and Dr. John

ScholarsArchive@OSU

Degradation of N-Nitrosodimethylamine Using Photo-Catalysis and Microreactor Technology : Experimentation and Modeling

Development of Temperature-Stable Relaxor Dielectrics for High Energy Density Capacitor Applications

A shared-autonomy heavy-lift assistive robot for manufacturing

Dynamic biasing for ring amplification

Material development for thin-film transistors

Designing Dielectric Materials through Complex Metal Oxides

Nutrient Addition Strategies for the Marine Diatom Cyclotella sp to Control Cell, Lipid, and Chitin Formation.

Probing Aqueous Ion-Pairing and Speciation of Group V Polyoxometalates

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Electron diffraction of molecules in superfluid helium droplets

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