Project 308: Augmented Reality Mario Kart,
2011
California Polytechnic State University - San Luis Obispo
Project 308: Augmented Reality Mario Kart, Joseph Abad, David Allender, Joryl Calizo, Ryan Gaspar, Gavin Lee
Computer Engineering
Mario Kart is a popular go-kart racing game developed by Nintendo. The premise of the game is simple: drive a go-kart along a racetrack and reach the finish line before the other players. What makes this game unique, however, is the inclusion of weapons, traps, and other projectiles that a player can use to gain an advantage in the race. We have taken on the challenge of not only recreating this amazing game, but using the art of Augmented Reality to fully immerse the player in the full experience. Rather than play the game on a television screen with a …
Final Design Review: Design Of An Integrated Solar Cell Array To Power A Solar Ear Hearing Aid Battery Recharger,
2011
California Polytechnic State University - San Luis Obispo
Final Design Review: Design Of An Integrated Solar Cell Array To Power A Solar Ear Hearing Aid Battery Recharger, Christina (Chrissa) Blattner, Scott Carey, Jared Myren, Faye Siao
Materials Engineering
As the energy of fossil fuel supplies are fast depleting due to high consumptions of energy by human beings, the need for other sources of energy, such as solar energy, has become a viable option. By creating solar cell arrays the desired voltage can be generated. The overall goal of the Solar Ear project is to create an array of photovoltaic cells connected with aluminum tracings to recharge batteries that are specifically used for hearing aids. The goal embodies two main areas: the design of a processing method to connect the cells during a micro-fabrication process and the creation of …
Laser Cursor,
2011
California Polytechnic State University - San Luis Obispo
Laser Cursor, Michael Liman
Electrical Engineering
A user controls a cursor on a computer screen using a laser pointer. A camera picks up the laser pointer’s position and sends the data to the computer to move the cursor in the correct position.
Programmable Household Led Light Fixture,
2011
California Polytechnic State University - San Luis Obispo
Programmable Household Led Light Fixture, Jordan Locano
Electrical Engineering
This report details the development and construction of a LED light fixture to be used for household lighting. This document details background information, design ideas, project specifications, production, assembly, testing, and conclusions involved with this project. The goals of this project is to design and build a cost-effective replacement for traditional room lighting that can perform better and last longer than traditional methods.
Low-Power Self-Sustaining Schedule Display,
2011
California Polytechnic State University - San Luis Obispo
Low-Power Self-Sustaining Schedule Display, Samuel (Sam) August
Electrical Engineering
The completed project is an Amazon Kindle, powered by a USB solar charger, running a student designed program to display a weekly schedule for a faculty member. The purpose of the project was to design a sustainable electronic schedule display for use outside a faculty office. It was designed in the hopes that faculty members could more easily update their schedules, and possibly allow for students to schedule appointments. The program was designed using Java and the solar-charger was designed using a solar cell, Schottky diode, and a USB to micro-B USB cable.
Experimental Study Of Shoot-Through Control Methods For Z-Source Inverter,
2011
Vrije Universiteit Brussel
Experimental Study Of Shoot-Through Control Methods For Z-Source Inverter, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Omar Ellabban
This paper presents a simulation and experimental comparative analysis of the Z-source inverter (ZSI) with four different shoot-through (ST) control methods, namely: the simple boost control, the maximum boost control, the maximum constant boost control and the modified space vector modulation boost control methods. A review of these methods is presented with a summary of all expressions. A prototype of a 30 kW ZSI is designed and implemented. The eZdsp™ F2808 evaluation board is used for the realization of the shoot-through control methods and the real time workshop (RTW) is used for automatic code generation. The paper compares between the …
Experimental And Theoretical Study Of Polarization-Dependent Optical Transitions In Inas Quantum Dots At Telecommunication-Wavelengths (1300-1500 Nm),
2011
NCN, Purdue University
Experimental And Theoretical Study Of Polarization-Dependent Optical Transitions In Inas Quantum Dots At Telecommunication-Wavelengths (1300-1500 Nm), Muhammad Usman, Susannah Heck, Edmund Clarke, Peter Spencer, Hoon Ryu, Ray Murray, Gerhard Klimeck
Birck and NCN Publications
observed, in contrast to recent reports for single QDJOURNAL OF APPLIED PHYSICS 109, 104510 (2011)
The design of some optical devices, such as semiconductor optical amplifiers for telecommunication applications, requires polarization-insensitive optical emission at long wavelengths (1300–1550 nm). Self-assembled InAs/GaAs quantum dots (QDs) typically exhibit ground state optical emissions at wavelengths shorter than 1300 nm with highly polarization-sensitive characteristics, although this can be modified by the use of low growth rates, the incorporation of strain-reducing capping layers, or the growth of closely-stacked QD layers. Exploiting the strain interactions between closely stacked QD layers also affords greater freedom in the choice …
Self-Assembling Organic Semiconductors With Tunable Electronic Properties Based On Novel Asymmetric Phenazine And Bisphenazine,
2011
University of Nevada, Las Vegas
Self-Assembling Organic Semiconductors With Tunable Electronic Properties Based On Novel Asymmetric Phenazine And Bisphenazine, Kyoungmi Jang
UNLV Theses, Dissertations, Professional Papers, and Capstones
Current demands in the area of organic semiconductors focus on both electronic and self-assembling properties. Particularly, one-dimensionally grown nanostructures of small organic semiconductors have drawn much attention for nanodevice fabrication. Self-assembly through various intermolecular interactions has been widely used to produce one-dimensionally grown nanostructures which can be induced by various methods such as rapid solution dispersion, a phase transfer method, vapor annealing, crystallization, and organogelation in conjunction with proper molecular design. Controlling the morphology of the nanostructures plays an important role in achieving desirable properties in optoelectronic device applications. While significant advancements have been made in developing molecular architectures for …
Design Guide For Cmos Process On-Chip 3d Inductor Using Thru-Wafer Vias,
2011
Boise State University
Design Guide For Cmos Process On-Chip 3d Inductor Using Thru-Wafer Vias, Gary Vanackern
Boise State University Theses and Dissertations
Three-dimensional (3D) inductors using high aspect ratio (10:1) thru-wafer via (TWV) technology in a complementary metal oxide semiconductor (CMOS) process have been designed, fabricated, and measured. The inductors were designed using 500 μm tall vias with the number of turns ranging from 1 to 20 in both a wide and narrow trace width to space ratios. Radio frequency characterization was studied with emphasis upon de-embedding techniques and resulting effects. The open, short, thru de-embedding (OSTD) technique was used to measure all devices. The highest quality factor (Q) measured was 11.25 at 798MHz for a 1-turn device with a self-resonant frequency …
Showcase For The Advantages Of Asynchronous Vs. Synchronous Circuits,
2011
University of Arkansas, Fayetteville
Showcase For The Advantages Of Asynchronous Vs. Synchronous Circuits, Justin Roark
Electrical Engineering Undergraduate Honors Theses
Synchronous circuits dominate the semiconductor industry, but asynchronous circuitry is becoming more popular and will continue to do so, as evidenced by the International Technology Roadmap for Semiconductors. Asynchronous circuits, when compared to synchronous circuits, display tolerance to supply voltage and temperature variation. The goal of this project is to demonstrate these two advantages. The project will compare two microcontrollers, a synchronous 8051 and an asynchronous 8031, which will both play a song under various stresses. Note that an 8031 and 8051 are the same, except for the 8051 includes an on-chip instruction memory, whereas the 8031's is off-chip. When …
Design Of A High-Voltage, Differential Drive Bradbury-Nielsen Gate Amplifier With Ultra-High Slew Rate And Input Isolation,
2011
University of Tennessee, Knoxville
Design Of A High-Voltage, Differential Drive Bradbury-Nielsen Gate Amplifier With Ultra-High Slew Rate And Input Isolation, Kevin Christopher Omoumi
Masters Theses
To isolate and study various components of a nuclear reaction, elaborate equipment must be developed to aid in this process. This thesis presents the design and implementation of an ultra-high slew rate Bradbury-Nielsen gate driver circuit with high-voltage input isolation. This design will be used in a multi-pass time-of-flight isomer spectrometer and separator application integrated into an overall instrument called the Oak Ridge Isomer Spectrometer and Separator (ORISS). The output drive signals of this circuit are transmitted through a vacuum feed-through system to supply the necessary signals to the Bradbury-Nielsen gate contained within the vacuum. A differential driving signal with …
Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines,
2011
Department of Electrical Engineering, University of Malaya
Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines, M. Khalaj-Amirhossein, M. Moghavvemi, Hossein Ameri Mahabadi
Hossein Ameri Mahabadi
A new idea is proposed to modify the conventional Wilkinson power dividers to operate at two or several desired frequencies. The proposed structure contains two Microstrip Nonuniform Transmission Lines (MNTLs) instead of two uniform ones with nearly the same length at the minimum frequency. The strip width of MNTLs is considered variable and is written as a truncated Fourier series. Three nonuniform power dividers are designed and one of them operating at frequencies 1.0, 2.8, and 4.5 GHz is fabricated and measured. The measured results of the fabricated diplexer have a good agreement with the theoretical results.
Body-Biased Vco Tunes 12 To 16 Ghz,
2011
Department of Electrical Engineering, University of Malaya
Body-Biased Vco Tunes 12 To 16 Ghz, M. Moghavvemi, Hossein Ameri Mahabadi, A. Attaran
Hossein Ameri Mahabadi
This body-biased voltage-controlled oscillator provides reasonably good phase-noise performance over a broad tuning range with relatively low power consumption and low jitter timing noise in the time domain.
Shaped Mems Contact,
2011
Air Force Institute of Technology
Shaped Mems Contact, Ronald A. Coutu Jr., Paul E. Kladitis, Robert L. Crane
AFIT Patents
A MEMS switch fabrication process and apparatus inclusive of a bulbous rounded surface movable contact assembly that is integral with the switch movable element and achieving of long contact wear life with low contact electrical resistance. The disclosed process is compatible with semiconductor integrated circuit fabrication materials and procedures and includes an unusual photoresist reflow step in which the bulbous contact shape is quickly defined in three dimensions from more easily achieved integrated circuit mask and etching-defined precursor shapes. A plurality of differing photoresist materials are used in the process. A large part of the contact and contact spring formation …
Optical Metamaterial Design, Fabrication And Test,
2011
Air Force Institute of Technology
Optical Metamaterial Design, Fabrication And Test, Jack P. Lombardi
Theses and Dissertations
Metamaterials, materials that make use of naturally occurring materials and designed structures to create materials with special properties not found in nature, are a fascinating new area of research, combining the fields of physics, microfabrication, and material science. This work will focus on the development of metamaterials operating in the visible and infrared which will be constructed and tested for basic optical properties. Possible applications for these materials will not be investigated. The this work will go into the fabrication and test of layered metal-dielectric structures, called layered metamaterials, as these structures hold potential for applications in advanced optical systems. …
Electromagnetic Modeling And Measurement Of Adaptive Metamaterial Structural Elements,
2011
Air Force Institute of Technology
Electromagnetic Modeling And Measurement Of Adaptive Metamaterial Structural Elements, Matthew E. Jussaume
Theses and Dissertations
This document addresses two major obstacles facing metamaterial development: uncertainty in the characterization of electromagnetic field behavior in metamaterial structures and the relatively small operational bandwidth of metamaterial structures. To address the first obstacle, a method of prediction aided measurement is developed and exploited to examine the field interactions within metamaterial devices. The fusion of simulation and measurement techniques enhances the understanding of the physical interactions of fields in the presence of metamaterials. To address the second obstacle, this document characterizes the effectiveness of an adaptive metamaterial design that incorporates a microelectromechanical systems (MEMS) variable capacitor. Applying voltages to the …
Control Of A Bidirectional Z-Source Inverter Forelectric Vehicle Applications In Different Operation Modes,
2011
Vrije Universiteit Brussel
Control Of A Bidirectional Z-Source Inverter Forelectric Vehicle Applications In Different Operation Modes, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Omar Ellabban
This paper proposes two control strategies for the bidirectional Z-source inverters (BZSI) supplied by batteries for electric vehicle applications. The first control strategy utilizes the indirect field-oriented control (IFOC) method to control the induction motor speed. The proposed speed control strategy is able to control the motor speed from zero to the rated speed with the rated load torque in both motoring and regenerative braking modes. The IFOC is based on PWM voltage modulation with voltage decoupling compensation to insert the shoot-through state into the switching signals using the simple boost shoot-through control method. The parameters of the four PI …
Led Spotlight,
2011
California Polytechnic State University - San Luis Obispo
Led Spotlight, Eric Toussaint
Electrical Engineering
This report details the development and construction of an LED spotlight useable in a theatrical or architectural setting. In depth background information, initial design concepts, lighting instrument specifications, assembly, testing, and conclusions from results are highlighted in this document. Project goals include efforts to support more energy efficient lighting in the arts and general lighting applications and a decrease in overall costs for energy used in all dramatic and architectural lighting applications.
A Dsp Based Dual Loop Digital Controller Design And Implementation Of A High Power Boost Converter For Hybrid Electric Vehicles Applications,
2011
Vrije Universiteit Brussel
A Dsp Based Dual Loop Digital Controller Design And Implementation Of A High Power Boost Converter For Hybrid Electric Vehicles Applications, Omar Ellabban, Joeri Van Mierlo, Philippe Lataire
Omar Ellabban
This paper presents a DSP based direct digital control design and implementation for a high power boost converter. A single loop and dual loop voltage control are digitally implemented and compared. The real time workshop (RTW) is used for automatic real-time code generation. Experimental results of a 20 kW boost converter based on the TMS320F2808 DSP during reference voltage changes, input voltage changes, and load disturbances are presented. The results show that the dual loop control achieves better steady state and transient performance than the single loop control. In addition, the experimental results validate the effectiveness of using the RTW …
Tuning Lattice Thermal Conductance By Porosity Control In Ultrascaled Si And Ge Nanowires,
2011
NCN, Purdue University
Tuning Lattice Thermal Conductance By Porosity Control In Ultrascaled Si And Ge Nanowires, Abhijeet Paul, Gerhard Klimeck
Birck and NCN Publications
Porous nanowires NWs with tunable thermal conductance are examined as a candidate for thermoelectric devices with high efficiency. Thermal conductance l of porous NWs is calculated using the phonon dispersion obtained from a modified valence force field model. Porosity in the NWs break the crystal symmetry leading to the reduction in ballistic l. 100 Si and Ge NWs show similar percentage reductions in l for the same amount of porosity. The model predicts an anisotropic reduction in l in SiNWs, with 111 showing the maximum reduction followed by 100 and 110 for a similar hole radius. The reduction in l …
