Browsing by Author "Dean, Robert"

Now showing items 21-40 of 48

Fabrication and Characterization of Carbon Nanotubes on Ceramic and Silicon Substrates for High Temperature Electronic Device Applications

Yakupoglu, Baha (2018-04-24)

This dissertation focuses on characterization and fabrication of multi-wall carbon nanotubes (CNTs) by DC plasma sputtering and thermal chemical vapor deposition techniques (CVD) on silicon (Si) and ceramic (Al2O3) substrates. ...

Fabrication and characterization of compliant off-chip double helix and carbon nanotube interconnect

Xu, Pingye (2014-12-10)

Microelectromechanical systems (MEMS) type double helix chip-level electrical interconnect structures are fabricated and characterized in this work. Due to their springlike structure, double helix interconnects have the ...

Fabrication of Macro Scale 3D Structures Using MEMS Technology

Stevens, Colin (2010-07-20)

The addition of Deep Reactive Ion Etching (DRIE) in the fabrication of micro-electro-mechanical-systems(MEMS) has enabled the creation of many new structures that were not previously feasible. By combining this technique ...

Flexible, Ultra-Thin, Embedded Die Packaging

McPherson, Ryan (2010-10-26)

As thin, flexible electronics solutions become more robust, their integration into everyday life becomes more likely. With possible applications in wearable electronics, biomedical sensors, or ‘peel and stick’ sensors, the ...

Hybrid Aerial and Ground-based Mobile Robot for Retail Inventory

Lyu, Yibo (2018-05-10)

Radio frequency identification (RFID) technology is increasingly used in retail stores and warehouses because it can help to improve the inventory process, enable automatic checkout, and reduce shoplifting. This dissertation ...

Learning Systems for Nonlinear Mapping

Richardson, Jordan (2017-04-13)

The many complex problems facing researchers and engineers demand innovative solutions. Machine learning techniques are growing in popularity due to their versatility and power. However, challenges remain. Popular machine ...

Low-Power, High-Performance Frequency Dividers for a Phase-Locked Loop

Daniels, Kyle (2020-03-16)

The world embraces the dawn of 5G implementation, and there is much work to be done. Companies, researchers, engineers, and many more posterities of people are pressing into high-frequency ranges, which presents a plethora ...

MEMS and Additively Manufactured Micro-Mechanical Isolator

Bond, Arthur III (2020-07-14)

The purpose of the research effort was the development and evaluation of mechanical isolators. Some MEMS sensors have a known vulnerability to high frequency vibrations in various environments. The nature of the ...

A MEMS Current Sensor Utilizing NdFeB Magnets

Tatarchuk, John (2015-08-18)

The need for a current sensor in a 12V-1V DC-DC converter is discussed. Background topics of current sensing in DC-DC converters and magnetic MEMS are discussed. An iterative design process for a MEMS current sensor ...

Metamaterial Filters on LCP Substrate Using MEMS Technology

Richard, Jonatahn (2011-07-26)

Metamaterials have a wide range of potential uses in areas such as optics, transmission lines, and RF design. The simplest metamaterial structures are Split-Ring Resonators (SRR) and Complementary Split-Ring Resonators ...

Methods for Improving Generalization and Convergence in Artificial Neural Classifiers

Hewlett, Joel (2011-08-26)

Artificial neural networks have proven to be quite powerful for solving nonlinear classification problems. However, the complex error surfaces encountered in such problems often contain local minima in which gradient based ...

Modelling, Control and Estimation Techniques For Micromachined Electrostatic Actuators Using Macro Magnetic Actuators

Li, Chong (2016-07-29)

Parallel plate actuators (PPAs) are fundamental devices in micro-electro-mechanical systems. PPAs' main drawback is their limited open loop stable traveling range which is caused by their nonlinear electrostatic force. ...

Multi-robot SLAM and map merging

Li, Hongye (2015-05-04)

Although it is a very useful technique for a robot to detect an unknown environment and plot the map, mapping is a classic problem in robotics. The mapping task can be sped up by multi-robot cooperation. Each robot in a ...

Nanoparticle Coatings for Surface Morphology Control and Superhydrophobicity

Zhong, Jie (2016-11-16)

Surface modifications with nanoparticles are major concerns in the realization of the full potential of nanoscale devices. Currently, no single surface treatment technology can solve all problems of reliability. Further, ...

Nonequilibrium Laser-Based Synthesis of Nanoparticle Ensembles

Elafandi, Salah (2020-11-17)

Two-dimensional (2D) materials have grabbed tremendous interest in the recent years because of their exotic electrical and optical properties, which make them potential candidates for next-generation electronics and ...

Nonlinear Optical and Photovoltaic Studies of Specific Nonconjugated Conductive Polymers and Metallic Nanoparticles

Van Cleave, Justin (2024-06-27)

In this research, the nonlinear optical properties of specific nonconjugated conductive polymers and gold nanoparticles in transparent dielectric media have been investigated. Photovoltaic devices utilizing nonconjugated ...

Optical Waveguide Sensor based on Gratings and Metamaterials for Refractive Index Sensing

Wu, Yixuan (2020-07-14)

Optical waveguide sensors based on gratings and metamaterials for refractive index (RI) sensing are introduced in this Ph.D. dissertation. A waveguide is a structure which can guide light based on total internal reflection. ...

Optimization of High Power Gallium Nitride Based Point of Load Converters for Data Center Power Supply Chains

Jenkins, Luke L. (2015-04-30)

Wide-bandgap semiconductors are enabling higher efficiency, greater power density, smaller size, and higher switching frequency than traditional Si semiconductors. This work shows the development of an over 96% efficient ...

Printed Circuit Board Sensor Technology: Rigid vs. Flexible vs. Additive Manufacturing

Reed, Moriah (2022-07-21)

There is no denying that printed circuit boards (PCB) have integrated themselves into all sorts of technology that we have today. They are in the computers on which we work, the appliances we use, and the sensors that ...

Radio Frequency Module on Small Gasoline Engine Application

Huang, Tian (2013-04-04)

Radio frequency communications applications are typically more applied than plain research in many aspects. A new application for radio frequency communications has been investigated for controlling the small gasoline ...