Browsing PhD Dissertations - DO NOT EDIT by Issue Date
Now showing items 41-60 of 82
-
Fundamental Understanding Of Soot Induced Wear Mechanism Of Diesel Engines
(Materials Science & Engineering, 2014-09-17)Emission of Oxides of nitrogen and particulates matters from diesel engines have been reduced by implementing exhaust gas recirculation (EGR) protocols but at the expense of increased wear of engine components. This ... -
Bubble Template Synthesis Of Hollow Gold Nanoparticle
(Materials Science & Engineering, 2014-09-17)Recently, a new synthesis method for creating hollow gold nanoparticles by using electrochemically hydrogen nanobubbles as a template was discovered in our research group. Hollow gold nanoparticles with well-controlled, ... -
Magnetic-plasmonic Multilayered Nanorods
(Materials Science & Engineering, 2015)Multilayered nanorods which consist of alternating magnetic layers separated by Au layers combine two distinctive properties, magnetic properties and surface plasmonic resonance (SPR) properties into one nano-entity. Their ... -
Comprehensive Study Of Composition Gradient Strontium Doped Lanthanum Manganite Thin Films Deposited By Magnetron Co-sputtering
(Materials Science & Engineering, 2015)In this body of work, the examination of three different types of Strontium doped lanthanum manganite thin films synthesized by magnetron sputtering in the Surface and Nano Engineering Laboratory (SaNEL) allowed for the ... -
Studying An All-vanadium Photoelectrochemical Cell For Highly Efficient Solar Energy Conversion And Storage Via Photocatalytic Redox Reaction
(Materials Science & Engineering, 2015)This study aims at developing a promising alternative approach to utilize solar energy continuously with high efficiency by employing photocatalytic vanadium redox reactions to overcome major drawbacks associated with ... -
Mechanical Reliability Of Porous Low-k Dielectrics For Advanced Interconnect: Study Of The Instability Mechanisms In Porous Low-k Dielectrics And Their Mediation Through Inert Plasma Induced Re-polymerization Of The Backbone Structure
(Materials Science & Engineering, 2015)Continuous scaling down of critical dimensions in interconnect structures requires the use of ultralow dielectric constant (k) films as interlayer dielectrics to reduce resistance-capacitance delays. Porous carbon-doped ... -
GUANIDINIUM BASED ANION EXCHANGE MEMBRANES FOR SOLID POLYMER ALKALINE FUEL CELL APPLICATIONS
(2015-12-09)Low temperature traditional PEM Fuel Cells and also other fuel cells in general suffer from the acute yet long standing issues of cost and performance. This has severely hindered the commercialization of fuel cells but ... -
MECHANISM OF WEAR AND TRIBOFILM FORMATION WITH IONIC LIQUIDS AND ASHLESS ANTIWEAR ADDITIVES
(2016-07-26)Increasingly stringent government regulation on emissions (EPA Emissions Standard Reference Guide and latest CAFE standards requiring an average fuel economy of 54.5 mpg (combined cars and trucks) by 2025) impose significant ... -
Study of an all-Vanadium Photoelectrochemical Cell for High-Efficiency Solar Energy Storage
(2016-07-27)In an attempt to explore a clean and renewable alternative to existing energy sources such as fossil fuel, we studied the feasibility of using vanadium redox species to store the inexhaustible solar energy via photoelectrochemical ... -
Reproductive Numbers for Periodic Epidemic Systems
(2016-08-09)When using mathematics to study epidemics, often times the goal is to deter- mine when an infection can invade and persist within a population. This can be done in a variety of ways but the most common is to use threshold ... -
THE CHARACTERIZATION OF SECONDARY LITHIUM-ION BATTERY DEGRADATION WHEN OPERATING COMPLEX, ULTRA-HIGH POWER PULSED LOADS
(2016-09-12)The US Navy is actively developing all electric fleets, raising serious questions about what is required of onboard power supplies in order to properly power the ship’s electrical systems. This is especially relevant when ... -
GOLD-NANOPARTICLE-BASED THERANOSTIC AGENTS FOR RADIOTHERAPY OF MALIGNANT SOLID TUMORS
(2016-09-15)Radiation therapy is one of the three major methods of cancer treatment. The fundamental goal of radiotherapy is to deliver high radiation doses to targets while simultaneously minimizing doses to critical structures and ... -
ELECTROMIGRATION INDUCED INTERFACE REACTION IN Cu-WIRE / Al-PAD DIFFUSION COUPLE
(2017-01-17)This dissertation presents experimental observations that may assist the understanding of electromigration (EM) failure mechanism active in Cu wire and Al thin film pad (wire bond). This study is motivated by an ongoing ... -
Investigation of Microstructure Effects on Hardness and Oxidation Resistance of New Generation Ceramic Coatings
(2017-08-16)This work was motivated by the demand for a new generation of materials capable for harsh environment applications, and focused on developing a better understanding of the effects of elemental composition and microstructure ... -
DEVELOPMENT OF PLASMA FUNCTIONALIZED NANO-ADDITIVES FOR OILS AND STUDY OF THEIR TRIBOLOGICAL PROPERTIES
(2017-10-20)Lubricants used in motor engines contain various chemical species to help enhance energy efficiency and provide increased longevity. Unfortunately, at the same time, these additives become a source of catalytic poisoning, ... -
INVESTIGATION OF THERMOPHYSICAL PROPERTIES OF ENHANCED MOLTEN SALT NANOFLUIDS FOR THERMAL ENERGY STORAGE (TES) IN CONCENTRATED SOLAR POWER (CSP) SYSTEMS
(2018-01-16)Concentrated solar power (CSP) technologies have a great economical and technical potential for energy production in future. Its incorporation with thermal energy storage (TES) overcomes one of the biggest challenges in ... -
STUDY OF COPPER-RICH INTERMETALLIC PHASE FORMATION IN COPPER-ALUMINUM BINARY SYSTEM
(2018-05-04)This work aims to study the initial formation and subsequent growth of intermetallic compounds (IMC) in the binary Al-Cu system. Al-Cu pair configurations have been successfully used for several decades as structural ... -
INVESTIGATION OF THE PROCESSING-STRUCTURE-PROPERTY RELATIONSHIP IN Ta-Si-N NANOCOMPOSITE COATINGS
(2018-05-23)The present-day industry demands development of coatings for harsh environmental applications which can resist impact and oxidation at high temperatures. It is vitally important to develop new hard (>30 GPa) protective ... -
Nature Inspired Technology: A New Process For Silicification based on Marine Sponges
(2018-05-23)Silica is used in various industries, ranging from automobile industry for tires to semiconductor industry, paints and coatings, biomedical devices & applications to food & drug industry. The current processing techniques ... -
Achieving novel functionalities in semiconductor-crystalline oxide heterostructures through electrical and structural coupling
(2018-08-15)Creating new materials that exhibit enhanced or novel behaviors is essential to meet the technological challenges we face today. Complex oxides are perfect candidates to overcome these challenges due to the range of ...