Browsing Electrical & Computer Engineering by Issue Date
Now showing items 1-20 of 138
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A Precision Slip Frequency Detector
(North Dakota State University, 1957)The problem of measuring low values of slip of induction machines is present in most Electrical Engineering laboratories. A rather high accuracy of the determination is necessary for theoretical calculations of motor ... -
Impedances of a Cubical Quad Antenna
(North Dakota State University, 1965)Rectangular loop antennas and short electric dipoles are two of the oldest antennas in existence. In 1888, twenty years after Maxwell invented his famous Maxwell's equations, Hertz used these two antennas to prove ... -
Estimating Tau (τ) from Left Ventricular Pressure Waveforms During Vena Caval Occlusions
(North Dakota State University, 2011)Many people are dependent on artificial pacemakers to have a normal cardiac function. Due to this it is important to study the effects of pacing on cardiac function, as well as, to determine the best site to pace with an ... -
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 ... -
Solution Processing Electronics Using Si6 H12 Inks: Poly-Si TFTs and Co-Si MOS Capacitors
(North Dakota State University, 2011)The development of new materials and processes for electronic devices has been driven by the integrated circuit (IC) industry since the dawn of the computer era. After several decades of '"Moore's Law"-type innovation, ... -
Calculating Cardiovascular Lumped-Parameter Model Values by Injecting Small Volume Perturbations in an Isovolumic Heart
(North Dakota State University, 2011)Diagnosing cardiac patient problems contains many uncertainties, and to fully diagnose the patient's condition usually requires a lengthy drug regimen to see what works and what does not. Compounding this problem is that ... -
Minimum Entropy Generation in the Cardiovascular System
(North Dakota State University, 2011)This study was performed under the motivation to find a scheme that could describe the complex behavior of cardiovascular homeostasis. This is hypothesized to be manifested in a thermodynamic description of the cardiovascular ... -
Thermo-Mechanical Selective Laser Assisted Die Transfer
(North Dakota State University, 2011)Laser Induced Forward Transfer (LIFT) techniques show promise as a disruptive technology which will enable the placement of components smaller than what conventional pick-and-place techniques are capable of today. Limitations ... -
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 ... -
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 ... -
Impedance-Based Wireless Sensor Network for Metal-Protective Coating Evaluation
(North Dakota State University, 2011)Research has focused on the influences of flowing fluid on the corrosion of bare metals, but there is little emphasis on the degradation of metal-protective coating. Evaluating the metal-protective coating usually uses the ... -
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 ... -
Computer-Aided Microwave Design System (CAMDS): Improvement, Verification, and Device Fabrication
(North Dakota State University, 2012)This paper presents a review of the Computer-Aided Microwave Design System (CAMDS) as originally developed by Divya Bais. Its goal was to deal with microwave design and analysis problems presented in standard textbooks ... -
Wireless Health Monitor Design
(North Dakota State University, 2012)In this thesis, a Wireless Health Monitor system for novel spacesuit verification and tests is presented. This system monitors the operator's health-related vital parameters and incorporates data acquisition, collecting ... -
Multisine Excitation Design to Increase the Efficiency of System Identification Signal Generation and Analysis
(North Dakota State University, 2012)Reducing sample frequencies in measurement systems can save power, but reduction to the point of undersampling results in aliasing and possible signal distortion. Nonlinearities of the system under test can also lead to ... -
Hybrid Renewable Energy System Using Doubly-Fed Induction Generator and Multilevel Inverter
(North Dakota State University, 2012)The proposed hybrid system generates AC power by combining solar and wind energy converted by a doubly-fed induction generator (DFIG). The DFIG, driven by a wind turbine, needs rotor excitation so the stator can supply a ... -
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 PMSG-Based Wind Energy Conversion System Assisted by Photovoltaic Power
(North Dakota State University, 2012)This work discusses a hybrid power conversion scheme consisting of a permanent magnet synchronous generator (PMSG)-based wind energy system and photovoltaic panels. The two energy sources are integrated with a battery to ... -
Analysis of Power Line Communication Channel Model using Communication Techniques
(North Dakota State University, 2013)With the advent of technology, human dependency on power (electricity) and communication has grown beyond leaps and bounds. Many efforts have been made to continuously improve and increase the efficiency in both areas. ... -
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 ...