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Articles 331 - 360 of 530
Full-Text Articles in Computer Engineering
Parallel Multi-Core Verilog Hdl Simulation, Tariq B. Ahmad
Parallel Multi-Core Verilog Hdl Simulation, Tariq B. Ahmad
Doctoral Dissertations
In the era of multi-core computing, the push for creating true parallel applications that can run on individual CPUs is on the rise. Application of parallel discrete event simulation (PDES) to hardware design verification looks promising, given the complexity of today’s hardware designs. Unfortunately, the challenges imposed by lack of inherent parallelism, suboptimal design partitioning, synchronization and communication overhead, and load balancing, render this approach largely ineffective. This thesis presents three techniques for accelerating simulation at three levels of abstraction namely, RTL, functional gate-level (zero-delay) and gate-level timing. We review contemporary solutions and then propose new ways of speeding up …
Improved Microrobotic Control Through Image Processing And Automated Hardware Interfacing, Archit R. Aggarwal, Wuming Jing, David J. Cappelleri
Improved Microrobotic Control Through Image Processing And Automated Hardware Interfacing, Archit R. Aggarwal, Wuming Jing, David J. Cappelleri
The Summer Undergraduate Research Fellowship (SURF) Symposium
Untethered submilliliter-sized robots (microrobots) are showing potential use in different industrial, manufacturing and medical applications. A particular type of these microrobots, magnetic robots, have shown improved performance in power and control capabilities compared to the other thermal and electrostatic based robots. However, the magnetic robot designs have not been assessed in a robust manner to understand the degree of control in different environments and their application feasibility. This research project seeks to develop a custom control software interface to provide a holistic tool for researchers to evaluate the microrobotic performance through advance control features. The software deliverable involved two main …
Foss Big Data Storage Solution, Nurdeen Salami
Foss Big Data Storage Solution, Nurdeen Salami
STAR Program Research Presentations
NASA projects require a reliable approach to store large volumes of data. Accordingly, it is crucial to adopt a lightweight, reliable, and scalable database. Current NASA databases bear costly license fees with undesirable speed and flexibility. The purpose of utilizing the AERO Institute as an IT test bed, or “Sandbox,” is to design, build, test, and implement software solutions prior to transfer to NASA projects. Cassandra coupled with the Astyanax API is a viable solution for storing big data. Store a minimum of 2GB of C-FOSS data in multiple file formats (.csv, .log, .xml, and .jpg). Use benchmark tests to …
Idpal – A Partially-Adiabatic Energy-Efficient Logic Family: Theory And Applications To Secure Computing, Mihail T. Cutitaru
Idpal – A Partially-Adiabatic Energy-Efficient Logic Family: Theory And Applications To Secure Computing, Mihail T. Cutitaru
Electrical & Computer Engineering Theses & Dissertations
Low-power circuits and issues associated with them have gained a significant amount of attention in recent years due to the boom in portable electronic devices. Historically, low-power operation relied heavily on technology scaling and reduced operating voltage, however this trend has been slowing down recently due to the increased power density on chips. This dissertation introduces a new very-low power partially-adiabatic logic family called Input-Decoupled Partially-Adiabatic Logic (IDPAL) with applications in low-power circuits. Experimental results show that IDPAL reduces energy usage by 79% compared to equivalent CMOS implementations and by 25% when compared to the best adiabatic implementation. Experiments ranging …
Chromium Os On Freescale I.Mx6q, Pushpal Sidhu
Chromium Os On Freescale I.Mx6q, Pushpal Sidhu
Computer Engineering
This projects intention is to get Chromium OS running on a Freescale i.MX6q processor, a processor based on the ARM® Cortex™-A9 architecture. The development board I used is the Ventana GW5400 by Gateworks. This project inherently meant using Chromium OS's development system which meant I created a board specific package for the Ventana single board computer. This project is a proof of concept that can mean extending Chromium OS to various implementations of the ARM® Cortex™-A9 architecture.
Design Of Cpu Simulation Software For Armv7 Instruction Set Architecture, Dillon Tellier
Design Of Cpu Simulation Software For Armv7 Instruction Set Architecture, Dillon Tellier
Computer Engineering
Simulations have long been a part of the engineering process in both the professional and academic domain. From a pedagogic standpoint, simulations allow students to explore the dynamics of engineering scenarios by controlling variables, taking measurements, and observing behavior which would be difficult or impossible without simulation. One such tool is a CPU simulator used in Cal Poly’s Computer Architecture classes; this software simulates an instruction accurate operation of a computer processor and reports statistics regarding the execution of the supplied compiled machine code. For the last several years Cal Poly’s computer architecture classes have used a previous version of …
Spirit: A Home Automation System, Andrew Choi
Spirit: A Home Automation System, Andrew Choi
Computer Engineering
Spirit is a multi device home automation system. Designed and implemented for California Polytechnic State University’s Senior Project program, this project was worked on during the duration of two school quarters from January 7, 2014 to June 13, 2014. The system consists of monitor/controllers designed to carry out everyday tasks in the average American household and an accompanying mobile application designed to receive information and control the devices. The monitor/controllers, or “Spirits”, are primarily developed using Arduino development tools and Arduino microcontroller boards. The spirits include a thermostat, named Tempus, an electrical outlet, Electrus, and a wall light switch, Luxos.
All Purpose Mobile Gps, James C. Smith, Matt Weege, Kevin Peters
All Purpose Mobile Gps, James C. Smith, Matt Weege, Kevin Peters
Electrical Engineering
The aim of the All Purpose Mobile GPS (The System) is to create a GPS tracking device that can accurately record location and calculate velocity, distance traveled and elevation change even when the satellite signal is lost. This data can later overlay on existing internet-based maps illustrating a trip to oneself or others. The portable tracker consumes very little power achieving several days’ worth of power in a single charge. A solar cell provides a quick battery boost in a pinch. SD Card storage increases compatibility with computers and other forms of data transfer. Data processing, such as viewing the …
Battery Management System, Michael Desando, Kyle Woody
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 the …
Ad-Hoc Hid: Modular Wireless Human Interface Device, Joseph A. Mazzanti
Ad-Hoc Hid: Modular Wireless Human Interface Device, Joseph A. Mazzanti
Electrical Engineering
Ad-Hoc HID is a modular, reprogrammable Human Interface Device. This device is intended to function as a keyboard, gamepad, or mouse, according to the user's needs. The final project is intended to be switch agnostic, making the final product adaptable to the user’s needs.
Low Cost, High Performance And Efficiency Computational Photometer Design, Sam B. Siewert
Low Cost, High Performance And Efficiency Computational Photometer Design, Sam B. Siewert
Sam B. Siewert
Researchers at the University of Alaska Anchorage and University of Colorado Boulder have built a low cost high performance and efficiency drop-in-place Computational Photometer (CP) to test in field applications ranging from port security and safety monitoring to environmental compliance monitoring and surveying. The CP integrates off-the-shelf visible spectrum cameras with near to long wavelength infrared detectors and high resolution digital snapshots in a single device. The proof of concept combines three or more detectors into a single multichannel imaging system that can time correlate read-out, capture, and image process all of the channels concurrently with high performance and energy …
The Astral Box, Patrick C. Davis, Marshall J. Underwood, Zack R. Hicks, Jahan Z. Hussaini
The Astral Box, Patrick C. Davis, Marshall J. Underwood, Zack R. Hicks, Jahan Z. Hussaini
Chancellor’s Honors Program Projects
No abstract provided.
The Construction And Characterization Of A Magneto-Optical Trap For Rubidium-87 And Electromagnetically-Induced Transparency In Rubidium-87 In A Vapor Cell, Yu Liu
Honors College Theses
Recent years have observed fast developments in neutral atomic vapor based quantum information storage technology. The technique utilizes light fields in the optical wavelength region as signal carrier and retriever and neutral atomic systems (e.g. single atoms, ensembles of atoms, atom-like defects in solids) as storage media. Photons are robust carriers of information due to their high velocity (c = 2.998 x 108 m/s) and ease of transportation (they propagate rectilinearly with low loss). Their high mobility, however, makes it a challenging task to spatially localize and therefore store them. Atoms (or atom-like systems), on the other hand, can …
The Design Of A Mobile, Animatronic Bald Eagle, Eric Burns
The Design Of A Mobile, Animatronic Bald Eagle, Eric Burns
Phi Kappa Phi Research Symposium (2012-2016)
Modern animatronics are used as a tool to help engage audiences in realistic and entertaining experiences. Many animatronic figures are dynamic in movement, but static in mobility. The research presented covers the beginnings of mobile animatronic research. An animatronic bald eagle, Opportunity, was designed for that purpose. Animations for Opportunity are generated by integration of Arduino, Pololu Mini Maestro, and Hitec Servo Motors. Arduino receives signals from flex sensors which cause voltage variations when “flexed”. The 1:1 scale, animatronic eagle can be perched on the arm of an “actor” who simulates an eagle’s caretaker. The flex sensors are located within …
Wii-B-Fit Adaptive Wii Remote, Chris Lombardo
Wii-B-Fit Adaptive Wii Remote, Chris Lombardo
Computer Engineering
The goal of this project was to fix and supplement the original Wii-B-Fit system in order to get it running again and improve on the original design. Wii-B-Fit’s original mission is to give people with paralysis the ability to participate in activities that they would not otherwise get to do, while creating a more fun, social, and independent lifestyle.Physical activity can help stimulate brain activity and is an integral part to a healthy lifestyle. Quadriplegia however makes it extremely hard to perform most forms of physical activity and severely limits the choices available to victims of the disease. The original …
Detection Systems For Airbag Deployment, Ryan S. Kee
Detection Systems For Airbag Deployment, Ryan S. Kee
Honors Program Projects
The airbag enablement system in today’s automobiles is not ideal and may allow airbags to deploy when they should not. Weight sensors detect pressure when someone sits in a passenger seat, enabling the airbag to deploy if an accident occurs. This system is flawed. For example, if a heavy box is placed in a passenger seat, the airbag will be unnecessarily enabled. The goal of this research project was to determine if different sensors—not weight sensors or cameras—could be used to identify the occupant of an automobile seat.
Using a microchip programmed in C language, a circuit was designed with …
Is Vehicle Characterization In Accordance With Standard Test Procedures A Necessary Prerequisite For Validating Computer Models Of A Test Vehicle?, Michael Hall
Masters
Vehicle characterization is the process by which a particular vehicle’s inherent dynamic behavior is classified by measuring its response to certain command inputs under standard test conditions. Such information is required when comparing its performance to that of other vehicles in response to the same test event and it is also used to authenticate computer models of the test vehicle. The aim of this research was to determine whether vehicle characterization is possible using data from non- standard tests and to judge whether such data can also be used for the purpose of validating a computer model of the test …
Interfaz Natural Para La Programación De Un Robot Manipulador A Través De Un Kinect, Daniel Leonardo Mariño Lizarazo
Interfaz Natural Para La Programación De Un Robot Manipulador A Través De Un Kinect, Daniel Leonardo Mariño Lizarazo
Ingeniería en Automatización
En un futuro los robots van a ser una parte natural de nuestra vida, para esto es importante que puedan interactuar de manera natural con las personas y que además puedan aprender cómo realizar nuevas tareas. Por medio de la programación por demostración, el usuario puede “explicar” la ejecución de una tarea a un robot mostrándole como se realiza sin necesidad de un lenguaje complicado. En este proyecto se desarrolló un sistema con en el cual el usuario puede generar programas para un robot manipulador sin la necesidad de tener conocimientos de programación o de robótica. El sistema propuesto permite …
A Federated Architecture For Heuristics Packet Filtering In Cloud Networks, Ibrahim M. Waziri Jr
A Federated Architecture For Heuristics Packet Filtering In Cloud Networks, Ibrahim M. Waziri Jr
Electronic Theses and Dissertations
The rapid expansion in networking has provided tremendous opportunities to access an unparalleled amount of information. Everyone connects to a network to gain access and to share this information. However when someone connects to a public network, his private network and information becomes vulnerable to hackers and all kinds of security threats. Today, all networks needs to be secured, and one of the best security policies is firewall implementation.
Firewalls can be hardware or cloud based. Hardware based firewalls offer the advantage of faster response time, whereas cloud based firewalls are more flexible. In reality the best form of firewall …
Situational Awareness/Triage Tool For Use In A Chemical, Biological, Radiological Nuclear Explosive (Cbrne) Environment, John N. Scarlett, Heather L. Gallup, David A. Smith
Situational Awareness/Triage Tool For Use In A Chemical, Biological, Radiological Nuclear Explosive (Cbrne) Environment, John N. Scarlett, Heather L. Gallup, David A. Smith
AFIT Patents
A method of managing patient care and emergency response following a Chemical, Biological, Radiological, or Nuclear Explosive (CBRNE) attack and maintaining compliance with the Health Insurance Portability and Accountability Act (HIPAA). The method including identifying each patient with a unique patient identifier, the identifier based upon the geospatial location of the patient, the geospatial location including at least the latitude and longitude of the patient when first treated, the unique patient identifier being part of patient data. Providing a collection point of patient data to form a patient data database where in the patient location data may be used to …
Testing Virtual Machines For Cadrc Server Hosting, Robin Verweij
Testing Virtual Machines For Cadrc Server Hosting, Robin Verweij
Computer Science and Software Engineering
No abstract provided.
Remote/Autonomous Sentry Gun Platform, Angelo Gagliardi, Dante Gagliardi
Remote/Autonomous Sentry Gun Platform, Angelo Gagliardi, Dante Gagliardi
Electrical Engineering
This senior project involves the complete system design and construction of a "Nerf" sentry gun to replace an armed guard. We aimed to develop a compact and highly mobile defense system that allows operational flexibility. The sentry gun can autonomously track and shoot at moving targets, while also allowing a user to remotely access and control the gun via computer. The mobility, hardiness, and functionality of this system allows a reliable replacement for human beings in harsh and hostile environments; ultimately sparing a life.
Design Of A Low Power Cargo Security Device Using A Micropower Ultra-Wideband Impulse Radar, Brian M. Wihl
Design Of A Low Power Cargo Security Device Using A Micropower Ultra-Wideband Impulse Radar, Brian M. Wihl
Master's Theses
Each year, thousands of cargo containers are broken into during shipping, costing billions of dollars in lost and damaged goods. In addition to removing its contents, intruders can also add unwanted and dangerous materials to a container, posing a threat to National Security. The possibilities of cargo container break-ins require that the containers go through check points at which they are physically searched. These searches often require the opening of the container, unloading and inspecting all cargo, and then loading the container and resealing it. This is a long and costly process.
Because of the high costs of break-ins and …
On High-Performance Parallel Fixed-Point Decimal Multiplier Designs, Ming Zhu
On High-Performance Parallel Fixed-Point Decimal Multiplier Designs, Ming Zhu
UNLV Theses, Dissertations, Professional Papers, and Capstones
High-performance, area-efficient hardware implementation of decimal multiplication is preferred to slow software simulations in a number of key scientific and financial application areas, where errors caused by converting decimal numbers into their approximate binary representations are not acceptable.
Multi-digit parallel decimal multipliers involve two major stages: (i) the partial product generation (PPG) stage, where decimal partial products are determined by selecting the right versions of the pre-computed multiples of the multiplicand, followed by (ii) the partial product accumulation (PPA) stage, where all the partial products are shifted and then added together to obtain the final multiplication product. In this thesis, …
Efficient Arithmetic For The Implementation Of Elliptic Curve Cryptography, Ebrahim Abdulrahman Hasan Abdulrahman
Efficient Arithmetic For The Implementation Of Elliptic Curve Cryptography, Ebrahim Abdulrahman Hasan Abdulrahman
Electronic Thesis and Dissertation Repository
The technology of elliptic curve cryptography is now an important branch in public-key based crypto-system. Cryptographic mechanisms based on elliptic curves depend on the arithmetic of points on the curve. The most important arithmetic is multiplying a point on the curve by an integer. This operation is known as elliptic curve scalar (or point) multiplication operation. A cryptographic device is supposed to perform this operation efficiently and securely. The elliptic curve scalar multiplication operation is performed by combining the elliptic curve point routines that are defined in terms of the underlying finite field arithmetic operations. This thesis focuses on hardware …
Vehicular Motion Sensor: Developing A Wide-Range Motion Sensing Alarm System, Joshua Isaacson
Vehicular Motion Sensor: Developing A Wide-Range Motion Sensing Alarm System, Joshua Isaacson
Senior Honors Theses
Vehicular safety has become a serious concern in recent years. Many drivers have difficulty backing out of parking spaces, especially when large trucks and sport utility vehicles block the peripheral view from smaller vehicles. This can lead to accidents and pedestrian injuries when drivers are unable to see or do not pay careful attention to their surroundings.
Vehicular motion sensor systems can alert drivers of approaching obstacles when attempting to back out of parking spaces with limited visibility. This thesis aims to explain the limitations of current systems and the research conducted by the author to develop a prototype for …
Digital Control Board For Phased Array Antenna Beam Steering In Adaptive Communication Applications, Mayur Bansal
Digital Control Board For Phased Array Antenna Beam Steering In Adaptive Communication Applications, Mayur Bansal
Master's Theses
The application of adaptive communication techniques for mobile communications has attracted considerable interest in the last decade. One example of these techniques is spatial filtering through planar antenna array beam forming.
This thesis describes the development of a digital system that adaptively controls a phased array antenna. The radiating structure of the phased antenna array is tetrahedral-shaped and contains four antenna elements on each of its three faces. The overall system comprises of a digital control board with an external computer interface, an RF control board, and the phased antenna array. The RF controls the main lobe direction on the …
Design Synthesis And Optimization Of Permanent Magnet Synchronous Machines Based On Computationally-Efficient Finite Element Analysis, Gennadi Sizov
Design Synthesis And Optimization Of Permanent Magnet Synchronous Machines Based On Computationally-Efficient Finite Element Analysis, Gennadi Sizov
Dissertations (1934 -)
In this dissertation, a model-based multi-objective optimal design of permanent magnet ac machines, supplied by sine-wave current regulated drives, is developed and implemented. The design procedure uses an efficient electromagnetic finite element-based solver to accurately model nonlinear material properties and complex geometric shapes associated with magnetic circuit design. Application of an electromagnetic finite element-based solver allows for accurate computation in intricate performance parameters and characteristics. The first contribution of this dissertation is the development of a rapid computational method that allows accurate and efficient exploration of large multi-dimensional design spaces in search of optimum design(s). The computationally efficient finite element-based …
Radio Frequency Based Programmable Logic Controller Anomaly Detection, Samuel J. Stone
Radio Frequency Based Programmable Logic Controller Anomaly Detection, Samuel J. Stone
Theses and Dissertations
The research goal involved developing improved methods for securing Programmable Logic Controller (PLC) devices against unauthorized entry and mitigating the risk of Supervisory Control and Data Acquisition (SCADA) attack by detecting malicious software and/or trojan hardware. A Correlation Based Anomaly Detection (CBAD) process was developed to enable 1) software anomaly detection discriminating between various operating conditions to detect malfunctioning or malicious software, firmware, etc., and 2) hardware component discrimination discriminating between various hardware components to detect malfunctioning or counterfeit, trojan, etc., components.
Feedback Stabilization At Spear3, Daniel Kelley, Jeff Corbett
Feedback Stabilization At Spear3, Daniel Kelley, Jeff Corbett
STAR Program Research Presentations
The SPEAR3 synchrotron lightsource at SLAC relies on a sophisticated radio frequency (RF) timing system to maintain current – electrons – in the storage ring. One problem SPEAR3 operators have dealt with is the thermal expansion of one of the cables supporting this RF timing system. As the cable expands and contracts with the diurnal rise and fall of the sun, the phase of the RF in the cable shifts. This shifting phase affects the timing accuracy of electron injections into the storage ring.
A common feedback control algorithm PID (Proportional Integral Derivative) has countless applications in engineering. PID feedback …