Browsing Electrical & Computer Engineering by Title
Now showing items 28-47 of 153
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Damping Interarea Oscillations in Power Systems with DFIG
(North Dakota State University, 2011)With rapid depletion of fossil fuels and increasing environmental concerns, the trend to capture renewable energy, especially through wind energy resources, is increasing. The doubly fed induction generator (DFIG) is the ... -
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 and Analysis of New Printed Wideband Antennas for Wireless Applications
(North Dakota State University, 2014)In this study a simple method to develop a wideband antenna is proposed. With this new technique a dipole antenna with a 48% frequency bandwidth is transformed to achieve a 120% frequency bandwidth for a voltage standing-wave ... -
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 an Audio-Visual Display for Cross-Modal Experimentation
(North Dakota State University, 2012)The present paper shows the characteristics of a hardware/software display capable of presenting, at different spatial locations, multiple audio-visual stimuli in real-time. The system has been developed to provide a tool ... -
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 ... -
Detection and Quantification of Rare Analytes in Biological Samples using Dielectrophoretic Spectroscopy
(North Dakota State University, 2017)Novel techniques for Dielectrophoresis (DEP) crossover frequency calculation, positive dielectrophoretic spectroscopy and negative dielectrophoretic spectroscopy are proposed in this dissertation. A novel automated immunoassay ... -
Development of Performance Optimized Rotation Tolerant Viola-Jones Based Blackbird Detection, a Throughput Optimized Asynchronous Mac Implementation, and Automated Wheat Lodging Estimation
(North Dakota State University, 2020)The research described in this doctoral dissertation focuses on three main topics:1) performance optimization of the Viola-Jones Algorithm (VJA) for red-winged blackbird (Agelaius phoeniceus) detection, 2) further increasing ... -
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 ... -
Dynamic State Estimation Assisted Power System Monitoring and Protection
(North Dakota State University, 2016)The advent of phasor measurement units (PMUs) has unlocked several novel methods to monitor, control, and protect bulk electric power systems. This thesis introduces the concept of “Dynamic State Estimation” (DSE), aided ... -
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 ... -
Efficient Message Dissemination Framework for Diverse Wireless Networks
(North Dakota State University, 2014)Wireless networks exhibit diversity, ranging from mostly disconnected delay tolerant networks and partially connected mobile ad hoc networks, to mostly connected cellular networks. Besides having useful applications, ...