Browsing Electrical & Computer Engineering Masters Theses by Title
Now showing items 13-32 of 79
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Dc'sign of Piezoelectric Energy Harvesting and Supercnpacitor Charging Circuits Using Optimized Duty-Cycle of Buck Converter
(North Dakota State University, 2009)Energy harvesting has been proved to be an innovative solution to replace the batteries in remote power supply applications. Unfortunately, the limited capacity aucl low efficiency of power conversion restrict the practical ... -
The Design and Analysis of a Conformal Spiral Antenna Structure for an Ultra-Wide-Band Radar System
(North Dakota State University, 2016)This thesis explores the design, simulation, and analysis of two conformal spiral antenna structures that are used for an ultra-wide-band (UWB) bistatic radar. The radar antenna system operates over a frequency range ... -
The Design and Analysis of a Microstrip Line Which Utilizes Capacitive Gaps and Magnetic Responsive Particles to Vary the Reactance of the Surface Impedance
(North Dakota State University, 2019)This thesis presents the work of using magnetic responsive particles as a method to manipulate the surface impedance reactance of a microstrip line containing uniform capacitive gaps and cavities containing the particles. ... -
Design of a Reconfigurable Pulsed Quad-Cell for Cellular-Automata-Based Conformal Computing
(North Dakota State University, 2011)This paper presents the design of a reconfigurable asynchronous unit, called the pulsed quad-cell (PQ-cell), for conformal computing. The conformal computing vision is to create computational materials that can conform to ... -
Design of High Power Density Switched Capacitor DC-DC Converter
(North Dakota State University, 2017)Design and implementation of high power density and high efficiency dc-dc converters has been a primary component for reducing energy cost. Traditionally dc-dc converters are composed with silicon based technology that has ... -
Designing of a Small Wearable Conformal Phased Array Antenna for Wireless Communications
(North Dakota State University, 2012)In this thesis, a unique design of a self-adapting conformal phased-array antenna system for wireless communications is presented. The antenna system is comprised of one microstrip antenna array and a sensor circuit. A 1x4 ... -
A Dual-Band Antenna Enabled Using a Complimentory Split Ring Resonator (CSRR) Placed in the Ground Plane
(North Dakota State University, 2019)The microstrip patch antenna is regarded as one of the key components for compact, low cost RF communications and wireless power techniques. In some instances, there are requirements that a system communicate on a different ... -
Dummy TSV-Based Timing Optimization for 3D On-Chip Memory
(North Dakota State University, 2016)Design and fabrication of three-dimensional (3D) ICs is one the newest and hottest trends in semiconductor manufacturing industry. In 3D ICs, multiple 2D silicon dies are stacked vertically, and through silicon vias (TSVs) ... -
Dynamic Partial Reconfiguration as an Approach to Motor Control Design
(North Dakota State University, 2018)Recent work in motor controls has been utilizing the Field Programmable Gate Array (FPGA) instead of using the more standard microprocessors or digital signal processors. FPGAs have the advantage of flexibility and ... -
Effect of Caffeine and a Preworkout Supplement on Heart Rate Variability Before and After Exercise
(North Dakota State University, 2016)Cardiovascular health is negatively affected by overactivity of the sympathetic nervous system (SNS) during rest. Heart rate variability (HRV) has been used to predict SNS activity. The study investigated effects of a ... -
The Effects of 2.45 GHZ Radio Frequency Energy on Neurological Tissue Genes Using an Unrestrained Murine Model In Vivo
(North Dakota State University, 2016)The effects that radio frequency (RF) energy has on the body is currently an inconclusive and controversial topic. This is in part due to the differences and issues that can be found in previous studies. This thesis ... -
Effects of Alternating Current Electrical Stimulation on the Cellular Chemistry and Proliferation of C2C12 Muscle Cells
(North Dakota State University, 2016)The objective of this study was to investigate the effects of electrical stimulation on the cellular chemistry and proliferation of C2C12 muscle cell line. The cells were cultured under the condition of AC electrical ... -
The Effects of Spatial and Temporal Properties on a Viscoelastic Model of the Dyssynchronous Canine Heart
(North Dakota State University, 2011)In this study, lumped parameter cardiovascular modeling has been used to understand the influence of muscle properties on mechanical dyssynchrony (MD) as well as general muscle dynamics. Incorporating viscous influence ... -
An Electrically Small, Wireless Sensor Platform Designed for Arbitrary Orientation
(North Dakota State University, 2013)Wireless sensors are currently used for data collection where it is either too dangerous and/or menial for a human to collect the data or impractical to use wired devices. Current wireless sensors are either too expensive ... -
Encoding Efficient Attributes Using Prime Modulo Method For Anonymous Credentials
(North Dakota State University, 2015)The thesis explains a new method of encoding binary and finite set attributes in the anonymous credential system. To encode each binary and finite set attribute, we used the Chinese remainder theorem instead of using prime ... -
Equivalent Circuit Modeling and Signal Integrity Analysis of Magneto-Static Responsive Structures, and Their Applications in Changing The Effective Permittivity of Microstrip Transmission Lines
(North Dakota State University, 2016)This work presents the equivalent circuit model, ringing and overshoot characteristics, as well as the ability of a new magneto-static responsive structure (MRS) to achieve the recon gurabil- ity of a variable e ective ... -
Extraction of Electromagnetic Properties of Metamaterials with Branch Compensation from Phase Tracking
(North Dakota State University, 2020)In the field of electromagnetism, there are materials known as metamaterials which exhibit unique properties that can be exploited. Permittivity, defined as capacitance per meter, of a metamaterial can vary over frequency ... -
A Far-Field Radio Frequency Experimental Exposure System and 31 Day Exposure Experiment on Understanding Mice
(North Dakota State University, 2015)Many studies have been performed on exploring the effects of radio frequency energy on biological function in vivo. In particular, gene expression results have been inconclusive due, in part, to a lack of a standardized ... -
Formal Verification Methodology for Asynchronous Sleep Convention Logic Circuits Based on Equivalence Verification
(North Dakota State University, 2019)Sleep Convention Logic (SCL) is an emerging ultra-low power Quasi-Delay Insensitive (QDI) asynchronous design paradigm with enormous potential for industrial applications. Design validation is a critical concern before ... -
FPGA-Based Simulation and Implementation of Induction Motor Torque Control Systems Based on Direct Torque Control (DTC)
(North Dakota State University, 2014)Electric drives for induction machines are of great importance because of the popularity of this machine type. To design, simulate and implement such drives, fast, reliable digital signal processors are needed. Recently ...