Open Access. Powered by Scholars. Published by Universities.®

Electrical and Computer Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

7,083 Full-Text Articles 8,761 Authors 3,452,946 Downloads 91 Institutions

All Articles in Electrical and Computer Engineering

Faceted Search

7,083 full-text articles. Page 1 of 162.

Nyiso – Selected Topics, Dejan Sobajic 2014 Engineering Conferences International

Nyiso – Selected Topics, Dejan Sobajic

Modeling, Simulation, And Optimization for the 21st Century Electric Power Grid

No abstract provided.


Preliminary Test Of A Real-Time, Interactive Silent Speech Interface Based On Electromagnetic Articulograph, Jun Wang, Ashok Samal, Jordan R. Green 2014 University of Nebraska - Lincoln

Preliminary Test Of A Real-Time, Interactive Silent Speech Interface Based On Electromagnetic Articulograph, Jun Wang, Ashok Samal, Jordan R. Green

CSE Conference and Workshop Papers

A silent speech interface (SSI) maps articulatory movement data to speech output. Although still in experimental stages, silent speech interfaces hold significant potential for facilitating oral communication in persons after laryngectomy or with other severe voice impairments. Despite the recent efforts on silent speech recognition algorithm development using offline data analysis, online test of SSIs have rarely been conducted. In this paper, we present a preliminary, online test of a real-time, interactive SSI based on electromagnetic motion tracking. The SSI played back synthesized speech sounds in response to the user’s tongue and lip movements. Three English talkers participated in ...


Calculated Vs. Experimental Values For Volume And Surface Resistivity In Various Polymer Compounds, Megan Webster 2014 University of Tennessee, Knoxville

Calculated Vs. Experimental Values For Volume And Surface Resistivity In Various Polymer Compounds, Megan Webster

Pursuit - The Journal of Undergraduate Research at the University of Tennessee

Versatile due to their resistance to high stress environments including but not limited to extreme temperature, pressure, and stress, polymers additionally have many uses in electrical applications wherein antistatic or conductive properties are preferential, i.e. conductive seals, oil pipeline spheres, and gaskets, to name a few. Being a complex material, many factors may affect the electrical resistivity of a given polymer compound including type and amount of carbon black, type of rubber, cure time and temperature, and dispersion, amongst other factors. External conditions such as relative humidity and temperature also play key roles. This paper will analyze five different ...


Simulation Of A Smart Home Energy Management System With Dynamic Price Response, Jason Y. Chan, Qinran Hu 2014 University of Tennessee, Knoxville

Simulation Of A Smart Home Energy Management System With Dynamic Price Response, Jason Y. Chan, Qinran Hu

Pursuit - The Journal of Undergraduate Research at the University of Tennessee

With the continuing development of the smart grid combined with the fluctuating nature of the electricity market, the development of demand-side management with controllable loads have been greatly driven. With the amount of household loads in the residential sector, managing their energy usage has received lots of interest. This paper presents a simulation of a previously proposed hardware design of a smart home energy management system (SHEMS), focusing on the data collection and processing functions of the proposed design while implementing them onto standard household loads like an electric water heater and an electric vehicle charging station. It was found ...


Process Control & Automation Of A Batch Reactor, James Kelly 2014 Dublin Institute of Technology

Process Control & Automation Of A Batch Reactor, James Kelly

Dissertations

The development of a split range PID controller with SCADA screens to facilitate manual and automatic control of a pilot plant scale batch reactor is presented in this thesis. Since the characteristics of the system were unknown a step response was obtained from the system and from the experimental results a model of the system was developed and analysed. The PID controller for the system was implemented via an Allen Bradley MicroLogix 1100 Programmable Logic Controller with the human interface for the controller being a SCADA system that was developed using the software package LabVIEW a visual programming language. From ...


Achieving 1 Gbps Over Step-Index Plastic Optical Fiber By Controlling The Effective Numerical Aperture, Naji Albakay 2014 University of Nebraska - Lincoln

Achieving 1 Gbps Over Step-Index Plastic Optical Fiber By Controlling The Effective Numerical Aperture, Naji Albakay

Dissertations & Student Research in Computer Electronics & Engineering

In this work, we develop a relatively simple and reliable technique to mitigate the effect of modal dispersion of standard, 1 mm step-index plastic optical fiber (SI-POF). We focus on decreasing the modal dispersion by reducing the effective numerical aperture (NA) of the fiber link. The technique involves a spatial mode filter that is constructed by using a commercially available polycarbonate capillary tube having a refractive index of 1.59, with inner and outer diameters of 1 mm and 2 mm, respectively. The capillary tube holds two pieces of 1 mm SI-POF, one comes from the transmitter and the other ...


Protecting Personal Private Information In Collaborative Environments, David S. Allison 2014 Western University

Protecting Personal Private Information In Collaborative Environments, David S. Allison

University of Western Ontario - Electronic Thesis and Dissertation Repository

The ability to collaborate has always been vitally important to businesses and enterprises. With the availability of current networking and computing power, the creation of Collaborative Working Environments (CWEs) has allowed for this process to occur anytime over any geographical distance. Sharing information between individuals through collaborative environments creates new challenges in privacy protection for organizations and the members of organizations. This thesis confronts the problems when attempting to protect the personal private information of collaborating individuals.

In this thesis, a privacy-by-policy approach is taken to addressing the issue of protecting private information within collaborative environments. A privacy-by-policy approach to ...


The Application Of Boundary Layer Climatology And Urban Wind Power Potential In Smarter Electricity Networks, Keith Sunderland, Gerald Mills 2014 Dublin Institute of Technology

The Application Of Boundary Layer Climatology And Urban Wind Power Potential In Smarter Electricity Networks, Keith Sunderland, Gerald Mills

Other resources

Smart electricity networks that address energy demand, efficiency and sustainability concerns are predicated on the ability to capture renewable energy in a controllable manner. Such networks will have a particular role in cities, where increasing demand is inevitable but this requires that primary (renewable) energy resources, including that of wind, is better understood. In this paper, the role of wind energy systems, as integral components of a smarter urban electricity network, is considered using a model of the urban wind resourcein Dublin, Ireland that is based on boundary layer theory and meteorological observations. This model is used in conjunction with ...


Fault Locating In Large Distribution Systems By Empirical Mode Decomposition And Core Vector Regression, Benyamin Khorramdel Mr., Hesamoddin Marzooghi Mr., Haidar Samet Dr., Meisam Pourahmadi-Nakhli Mr., Mahdi Raoofat Dr. 2014 SelectedWorks

Fault Locating In Large Distribution Systems By Empirical Mode Decomposition And Core Vector Regression, Benyamin Khorramdel Mr., Hesamoddin Marzooghi Mr., Haidar Samet Dr., Meisam Pourahmadi-Nakhli Mr., Mahdi Raoofat Dr.

Hesamoddin Marzooghi

This paper proposes an intelligent fault locating method using a new signal analysis technique called Empirical Mode Decomposition (EMD) and Core Vector Regression (CVR) for large distribution systems. The conventional fault locators are based on the measurement of post-fault line impedance suffering from the factors such as path fault impedance, system configuration and line loading, so that they have low accuracy. On the other hand, because of the vast range of resistances, the negative impact of damping factors affects the performance of travelling wave-based fault locators in large distribution systems. To overcome these problems, this paper uses a minimum measuring ...


Rubidium-Based Atomic Clock, Kate Miles 2014 California Polytechnic State University

Rubidium-Based Atomic Clock, Kate Miles

Physics

In this paper we will explore the process of building an atomic clock from a function generator, go into an in-depth introductory discussion of the Datum LPRO, and examine how rubidium function generators work.


St. Jude Medical - R&D Robot For Sensor Testing, Andrew Chanul Kim, Stanley Logan Laszczyk, Edgar Nava, Nathan Gall 2014 California Polytechnic State University

St. Jude Medical - R&D Robot For Sensor Testing, Andrew Chanul Kim, Stanley Logan Laszczyk, Edgar Nava, Nathan Gall

Electrical Engineering

No abstract provided.


High-Speed Mobile Networks For Modern Farming And Agricultural Systems, Santos Najar 2014 California Polytechnic State University

High-Speed Mobile Networks For Modern Farming And Agricultural Systems, Santos Najar

Master's Theses and Project Reports

ABSTRACT

High-Speed Mobile Networks for Modern Farming and Agricultural Systems

J.Santos Najar-Ramirez

High-speed mobile networks are necessary for agriculture to inventory individual plant health, maximize yield and minimize the resources applied. More specifically, real-time information on individual plant status is critical to decisions regarding the management of resources reserved and expended. This necessity can be met by the availability of environmental sensors (such as humidity, temperature, and pH) whose data is kept on storage servers connected to static and mobile local area networks. These static and mobile local area networks are connected to cellular, core and satellite networks. For ...


Sonar For The Visually Impaired, Anastasia Newark, Edwin Ng, Scott Terhorst 2014 California Polytechnic State University

Sonar For The Visually Impaired, Anastasia Newark, Edwin Ng, Scott Terhorst

Biomedical Eng/General Eng.

There are currently no inexpensive assistive devices that allow the visually impaired detect low hanging objects that are above waist height and may cause injury, such as a rope or tree branch. The challenge presented to the team by the Quality of Life Plus Lab (QL+) was to develop a Sonar Cane device that attaches to a traditional white cane to address this problem. This device must be lightweight, inexpensive to manufacture, have a long battery life, and accurately detect obstacles to prevent user injury.


Team Omnimouse, Derek J. Halman, Josh B. Porter, Steven A. Silver, Ian S. Stemper 2014 California Polytechnic State University

Team Omnimouse, Derek J. Halman, Josh B. Porter, Steven A. Silver, Ian S. Stemper

Computer Engineering

INFORMATION, DATA, FIGURES AND DRAWINGS EMBODIED IN THIS DOCUMENT ARE STRICTLY CONFIDENTIAL AND ARE SUPPLIED ON THE UNDERSTANDING THAT THEY WILL NOT BE DISCLOSED TO THIRD PARTIES WITHOUT THE PRIOR WRITTEN CONSENT OF QUALITY OF LIFE PLUS.


Human-Powered Swing Generator, Danny Cai, Timothy Lai, Brandon Wong 2014 California Polytechnic State University

Human-Powered Swing Generator, Danny Cai, Timothy Lai, Brandon Wong

Electrical Engineering

Many developing countries lack sufficient resources to provide enough electricity for every family to live with a satisfying level of comfort and convenience. Our project proposes a solution that provides families with an alternative access to electricity using a playground swing. This project addresses the design and construction of the Human-Powered Swing Generator, which converts mechanical energy to electrical energy for charging a battery. The charged battery serves as a source of DC energy for potential DC purposes, such as charging a cell phone.


Merry-Go-Round Human Powered Generator, Sarah Lorraine Ashe, Salvador Navarro 2014 California Polytechnic State University

Merry-Go-Round Human Powered Generator, Sarah Lorraine Ashe, Salvador Navarro

Electrical Engineering

How do you bring electricity to families who have limited resources in a developing country? The DC House project, advised by Dr. Taufik, provides a way for kids to have fun, exercise and generate power for their homes – play-park human powered generators. This project intends to create a more efficient and cost effective way for playground equipment to be implemented for power generation. The redesigned and reconstructed merry-go-round human powered generator converts mechanical energy into electrical energy to power the DC house. This was a fully functioning generator that needed a better voltage gain, as well as, a more effective ...


Rapid Battery Exchange Safety And Sensing, Ben John Froelich, Isaac Sungjin Kim 2014 California Polytechnic State University

Rapid Battery Exchange Safety And Sensing, Ben John Froelich, Isaac Sungjin Kim

Electrical Engineering

The Rapid Battery Exchange system (RBX) swaps batteries in an electric van, allowing almost continuous operation of the vehicle. The RBX system is designed and built by The Cal Poly Electric Vehicle Engineering Club (EVEC). The system includes the exchange ramp, two battery packs, and the electric “G-Van.” While the vehicle drives using one of the battery packs, the other pack charges in the exchange ramp. When the van’s battery depletes, it drives onto the ramp and swaps the dead battery for the charged one, and the process repeats.

The RBX battery pack safety and sensing project divides into ...


Battery Management System, Michael DeSando, Kyle Woody 2014 California Polytechnic State University

Battery Management System, Michael Desando, Kyle Woody

Electrical Engineering

Problem Statement:

There have been recent reports of multi-million dollar companies having to recall entire projects due to their BMS’s malfunctioning or operating incorrectly. The purpose of this project is to analyze the future of batteries, the Lithium-Ion cell, and to exercise a BMS to better understand its capabilities and possible cases for errors. Lithium ion batteries are intolerant of overcharge and overdischarge. Abuse of this kind can result in high temperatures, venting of gases, fire, or explosion. Therefore battery management systems have been devised to prevent such abuse. Recent events such as fires on the Boeing Dreamliner and ...


Bipolar Pulse Width Modulation Inverter, Xin Chen, Ryan Harada 2014 California Polytechnic State University

Bipolar Pulse Width Modulation Inverter, Xin Chen, Ryan Harada

Electrical Engineering

The project entails the design of an improved PWM inverter circuit for the inverter lab experiment in the introductory power electronic course. The improved PWM inverter uses bipolar switching with a half bridge control circuit. The inverter utilizes two ICL8038 chip to generate both the control and carrier signals. The improved inverter enhances the system's portability, protection and is easy to understand from the prior design. The improved PWM inverter provides AC variable single phase 65 Hz AC output voltage from DC input signal. The finished product will be used specifically in the EE 410 laboratory course.


Portable Nano Hydro Generator For The Dc House Project, Caleb David Fink, Victor Olusoji Ojewole, Christopher Mapua Tan 2014 California Polytechnic State University

Portable Nano Hydro Generator For The Dc House Project, Caleb David Fink, Victor Olusoji Ojewole, Christopher Mapua Tan

Electrical Engineering

This Senior Project entails the design and testing processes of the Portable Nano Hydro Generator for the continuing DC House Project. No natural resources should go unused, especially in developing countries where they are found in abundance. Small streams in particular have potential to further Professor Taufik's DC House Project that will provide electricity to 1.6 billion people in the world without access to electricity upon completion. The goal of this project is to create a small portable generator that utilizes the discharge from small streams and convert it into useable electricity that could charge a car battery ...


Digital Commons powered by bepress