Index Catalog // ScholarsArchive@OSU

Assessment Tool for CAC Self-Study Report

Creator:: Mathur, Pankaj
Abstract:: Accreditation Board for Engineering and Technology, Inc. (ABET) is the primary organization responsible for monitoring, evaluating and certifying the quality of engineering, engineering technology, computing and applied sciences education in the United States. In 2000, ABET changed the way computer science (and engineering) programs are accredited from a ‘checklist’ approach...
Resource Type:: Capstone Project

Signed Digit Representation of Numbers

Creator:: Venkatachalapathy, Savithri
Abstract:: "A non-redundant number system has the digit set limited ranging from 0 to radix -1. While the Signed digit numbers have digit set consisting of more than radix r values. Hence it is also called redundant number system. Furthermore, the advantage of redundant number system lies in its application for...
Resource Type:: Capstone Project

Contributions to Collaborative Filtering Research

Creator:: Nong, Shuzhen
Abstract:: In this report, I first introduce three areas of interest to collaborative filtering researchers, namely: (a) how to solve the sparsity and scalability problems in recommendation systems; (b) how to rapidly develop and test collaborative filtering algorithms; and (c) how to apply collaborative filtering to unbounded numeric preference data. In...
Resource Type:: Capstone Project

Timing Attacks on Software Implementation of RSA

Creator:: Singh, Harshman
Abstract:: Timing attacks enable an attacker to extract secret information from a cryptosystem by observing timing differences with respect to different inputs given to an encryption or decryption algorithm. Werner Schindler has proposed a timing attack on smart card devices. We implemented this attack based on the same approach for RSA...
Resource Type:: Capstone Project

Constraint based personalization

Creator:: Nagboth, Sai Rajkiran
Abstract:: Personalization is defined as a process that facilitates interaction among consumers and providers such that individual consumers are enabled to more readily access the content and services of providers, and individual providers are enabled to more effectively and easily deliver their content and services to consumers. This project presents a...
Resource Type:: Capstone Project

A tunable duty-cycle-controlled switched-R-MOSFET-C CMOS filter for low-voltage and high-linearity applications

Creator:: Xiao, Ying
Abstract:: A novel switched-R-MOSFET-C input branch is proposed for low-voltage and high-linearity applications. The tunability is achieved by varying the clock duty cycle using an automatic tuning circuit. This tuning method does not involve a change in gate voltage, and is therefore particularly suitable for low-voltage applications. The advantages of the...
Resource Type:: Masters Thesis

Java byte code obfuscator

Creator:: Mundle, Maithily
Abstract:: This paper discusses Java Bytecode Obfuscation techniques that make the reverse engineering task more difficult. This paper is structured as follows: Java virtual machine and Java language specifications are discussed first. Then the paper talks about different techniques for protecting software and then details one promising approach named Obfuscation. The...
Resource Type:: Capstone Project

Shape transformation using compactly supported radial basis functions

Creator:: Park, Byungsoo
Abstract:: Shape transformation is a technique for gradually changing one geometric shape to another. A recent approach presents the use of thin-plate radial basis functions as opposed to traditional "blobby sphere" implicit functions. Without the explicit evaluation of he energy function, this approach combined the two traditional steps into one by...
Resource Type:: Capstone Project

A study of basic building blocks of analog-to-digital delta-sigma modulators

Creator:: Guo, Yuhua
Abstract:: In this thesis, a novel Direct-Charge-Transfer (DCT) integrator structure is proposed, which can settle much faster than regular switch-capacitor integrators. A new Spread-Spectrum Dynamic Element Matching (SS-DEM) algorithm is also introduced, which can effectively spread or shape the nonlinearity error of multi-bit DAC in the feedback path, thus improve the...
Resource Type:: Masters Thesis

Analysis and modeling of substrate noise coupling for NMOS transistors in heavily doped substrates

Creator:: Hsu, Shu-ching
Abstract:: This thesis examines substrate noise coupling for NMOS transistors in heavily doped substrates. The study begins with the analysis of an NMOS transistor switching noise in a digital inverter at the device level. A resistive substrate network for the NMOS transistor is proposed and verified. Coupling between N+- P+ contacts...
Resource Type:: Masters Thesis

Performance of a binary pulse position modulated ultra-wideband system with direct sequence spreading for multiple access

Creator:: Venkatesan, Vinod
Abstract:: There has been tremendous technological advancement in the area of high-speed indoor wireless local area networks (WLAN's) in recent years. All the existing tech- nologies such as IEEE 802.11a,b are bandwidth limited and high powered systems. The challenge any wireless technology faces is to minimize both the power consumption and...
Resource Type:: Masters Thesis

Optimizing the advanced encryption standard on Intel's SIMD architecture

Creator:: Godbole, Pankaj
Abstract:: The Advanced Encryption Standard (AES) is the new standard for cryptography and has gained wide support as a means to secure digital data. Hence, it is beneficial to develop an implementation of AES that has a high throughput. SIMD technology is very effective in increasing the performance of some cryptographic...
Resource Type:: Masters Thesis

Effects of interruption-style on end-user programmers

Creator:: Robertson, T. J. (Thomas James)
Abstract:: This thesis presents the results of two studies that investigate the question of what interruption-styles are most appropriate for end-user programmers who are debugging programs. In the studies, end-user programmers are presented with surprises that encourage them to investigate, use, and learn about debugging devices in their programming environment. We...
Resource Type:: Masters Thesis

Statistics and metrics generator for web-based software installation

Creator:: Guruprasad, Arvind
Abstract:: Statistics and Metrics Generator (SMG), is a software tool that gathers, stores and reports performance and execution metrics for a web-based software installation process. The purpose of this project was to develop a software utility that provides feedback about software download and installation process efficiency. A web-based software installation is...
Resource Type:: Capstone Project

Leaf shape recognition via support vector machines with edit distance kernels

Creator:: Sinha, Shriprakash
Abstract:: Edit distances are a well-established technique for classification problems. They have been employed successfully in many classification problems including chromosome classification and hand-written digit recognition. Virtually all machine learning algorithms represent the objects to be classified as vectors of features. However, edit distances provide only a measure of the difference...
Resource Type:: Masters Thesis

Survey of System Virtualization Techniques

Creator:: Rose, Robert
Abstract:: This paper discusses two main trends in the development of virtual machine systems: full system virtualization, where an entire hardware architecture is replicated virtually, and paravirtualization, where an operating system is modiﬁed so that it can be run concurrently with other operating systems that have also been designed for paravirtualization.
Resource Type:: Capstone Project

A 10 bit algorithmic A/D converter for a biosensor

Creator:: Rengachari, Thirumalai
Abstract:: This thesis presents a novel algorithmic A/D converter to be used in a biosensor. The converter is capable of a conversion rate of 1.5 bits/phase and hence the required conversion time is reduced. The proposed architecture is analyzed for non-ideal effects and compared with existing algorithmic A/D architectures. The converter...
Resource Type:: Masters Thesis

The design of a test environment and its use in verification of a scalable modular multiplication and exponentiation

Creator:: Khair, Elias
Abstract:: Information security is an important concern in today’s communication and business world. To achieve these security functions, cryptography is utilized. RSA and the Diffie Hellman key exchange are some examples of cryptography algorithms that use modular multiplication to compute modular exponentiations. Modular multiplication requires division operations which becomes very time...
Resource Type:: Masters Thesis

Multiple antenna techniques for pulse-based ultra-wideband system

Creator:: Vemulapalli, Sudheer
Abstract:: fIndoor wireless local area networks (LAN's) and personal area networks (PAN’s) have evolved very rapidly in the recent past. The indoor wireless LAN's are mainly dominated by narrow-band technologies like the IEEE 802.11a,b which are short range and provide data rates of 1 Mbps to 54 Mbps. The Bluetooth has...
Resource Type:: Masters Thesis

An experimental evaluation of auto-exploratory, average-reward reinforcement learning

Creator:: Mach, Kimberly
Resource Type:: Capstone Project

Enhancing and profiling the AE32000 cycle accurate embedded processor simulator

Creator:: Megarajan, Balaji
Abstract:: The AE32000 processor core, developed by Advanced Digital Chips Inc., Korea, is used primarily in the embedded processing environment. The AE32000 simulator models this embedded processor core having high code density. An enhanced simulator was developed to study the performance of the present Instruction Set Architecture after comparison with the...
Resource Type:: Masters Thesis

Development and enhancement of AE32000 : an embedded microprocessor core

Creator:: Yerubandi, Siva Sai
Abstract:: AE32000 microprocessor was developed mainly to address the need for the reduction in the amount of memory accesses in embedded applications. One of the primary goals of a computer architect is the design and construction of machines, that support the efficient execution of the programs that will run on them....
Resource Type:: Masters Thesis

Low-power video decoding with dynamic voltage scaling

Creator:: Dixit, Reshma
Abstract:: This thesis investigates Dynamic Voltage Scaling (DVS) techniques to lower power consumption in video decoding. A DVS scheme called the Frame-data Computation Aware (FDCA) method has been presented. This method is adaptable not only to stored video applications but also to real-time video scenarios. Unlike DVS schemes for video decoding...
Resource Type:: Masters Thesis

Porting GCC to X32V architecture

Creator:: Venkatachalapathy, Savithri H.
Abstract:: This thesis work evaluates the need for a re-configurable cross compiler for the X32V processor architecture and discusses the process of developing a cross compiler for X32V. X32V is a new processor intended at the embedded applications domain whose instruction set is designed based on the widely used MIPS processor....
Resource Type:: Masters Thesis

Object highlighting : real-time boundary detection using a Bayesian network

Creator:: Jia, Jin
Abstract:: Image segmentation continues to be a fundamental problem in computer vision and image understanding. In this thesis, we present a Bayesian network that we use for object boundary detection in which the MPE (most probable explanation) before any evidence can produce multiple non-overlapping, non-self-intersecting closed contours and the MPE with...
Resource Type:: Masters Thesis

Designing multimedia extensions for configurable processors

Creator:: Zier, David A.
Abstract:: The purpose of this thesis is to explore the design of a multimedia extension Instruction Set Architecture (ISA) for a reconfigurable processor. An Extendable Multimedia Module (EM3) was designed as an optional module for X32V. X32V is a prototype configurable processor simulator developed at Oregon State University by John Mark...
Resource Type:: Masters Thesis

Hardwood lumber grading program

Creator:: Zhou, Weicheng
Abstract:: Hardwood lumber is a major forest product, and board grading is an important part of its manufacturing and marketing. Computer grading programs have been used to train graders and to grade lumber for board data banks, but they have not been used to machine-grade boards in an industrial environment because...
Resource Type:: Masters Thesis

An in-depth analysis of common software vulnerabilities and their solutions

Creator:: Van Dyke, Colin William
Abstract:: With the current security climate throughout the Internet, a large emphasis is being placed on protecting software systems from attack by a malicious entity. Most successful attacks against software are the result of lazy or misinformed developers and are easily prevented given the correct preparation and instruction. This document provides...
Resource Type:: Masters Thesis

Fast hashing on pentium SIMD architecture

Creator:: Aciiçmez, Onur
Abstract:: The SIMD (single-instruction, multiple-data) architecture is implemented in many popular general-purpose processor families, including Intel Pentium. In this paper, we examine if any performance gains can be obtained in the implementation of the Secure Hash Algorithms (SHA-1, SHA-256, SHA-384, and SHA-512) and present the details of our optimization methods and...
Resource Type:: Masters Thesis

Coupled circuit and device simulations for design of RF MEMS VCOs

Creator:: Behera, Manas
Abstract:: A new coupled circuit and electrostatic/mechanical simulator (COSMO) for the design of RF MEMS VCOs is presented in this thesis. The numerical solution of device level equations is used to accurately compute the capacitance of a MEMS capacitor. This coupled with a circuit simulator facilitates the simulation of circuits incorporating...
Resource Type:: Masters Thesis

Improving throughput of networks of radix-2 on-line arithmetic modules for small precision applications

Creator:: Shantilal, Ajay Chordia
Abstract:: On-line arithmetic modules were proposed as a way to explore parallelism in arithmetic operations at digit level. Using always serial operators that receive inputs and compute the outputs from most-significant to least-significant digits, online arithmetic makes it possible to overlap all arithmetic operations and have a pipelined structure. On-line division...
Resource Type:: Masters Thesis

Steady-state analysis techniques for coupled device and circuit simulation

Creator:: Hu, Yutao
Abstract:: The focus of this work is on the steady-state analysis of RE circuits using a coupled device and circuit simulator. Efficient coupling algorithms for both the time-domain shooting method and the frequency-domain harmonic balance method have been developed. A modified Newton shooting method considerably improves the efficiency and reliability of...
Resource Type:: Dissertation

Processing sequences of chromatophore images with application to a signal transduction pathway modeling

Creator:: Orhanovic, Iva
Abstract:: Systems biology is becoming increasingly important for the study of living organisms. It focuses on the mathematical understanding of biological systems. Cells, the basic units of all living creatures, are biological systems of major interest. Considerable work is being done towards modeling cells as mathematical systems. At the same time,...
Resource Type:: Dissertation

Generalized radix design techniques for low-power, low voltage pipelined and cyclic analog-digital converters

Creator:: Sharma, Vivek
Abstract:: This thesis proposes a novel technique for the design of pipelined and cyclic ADCs utilizing generalized radix gain stages. Several models have been proposed for the optimization of high performance pipelined ADCs by various researchers. This work builds upon them, using a simple but accurate model to estimate the optimal...
Resource Type:: Masters Thesis

A comparison of substrate noise coupling in lightly and heavily doped CMOS processes for 2.4 GHz LNA's

Creator:: Hazenboom, Duncan S.
Abstract:: Three types of low noise amplifiers operating at 2.4GHz were designed. They are the commonly used single-ended and differential amplifiers as well as a new quasi-differential amplifier. The substrate noise injected into these amplifiers is examined for both heavily and lightly doped CMOS substrates. For the single-ended amplifier the noise...
Resource Type:: Masters Thesis

Multi-criteria average reward reinforcement learning

Creator:: Natarajan, Sriraam
Abstract:: Reinforcement learning (RL) is the study of systems that learn from interaction with their environment. The current framework of Reinforcement Learning is based on receiving scalar rewards, which the agent aims to maximize. But in many real world situations, tradeoffs must be made among multiple objectives. This necessitates the use...
Resource Type:: Masters Thesis

New configurations of bandpass filters in single and multilayer environment

Creator:: Gururajan, Kala
Abstract:: Mobile and telecommunication industry has experienced tremendous growth in the recent past. Miniaturization and increased functionality have become necessary for all passive components in the system. Bandpass filters are critical passive components in any communication system and the existing designs in the crucial 1-10 GHz bandwidth suffer many drawbacks. For...
Resource Type:: Masters Thesis

Dynamic, incremental assertion propagation in end-user programming

Creator:: Creswick, Eugene Rogan
Abstract:: End-user programming is growing at a rapid rate, but there has been little in the way of tools or environments to improve the correctness of programs created by end users. We present an approach to dynamic assertions in one of the most widely used end-user programming paradigms - namely the...
Resource Type:: Masters Thesis

Hybrid electric vehicle converter harmonics

Creator:: Bowers, Waylon T.
Abstract:: Hybrid electric vehicles (HEV’s) are a very important part of today’s transportation system as they are bridging the gap between fully electric vehicles and conventional internal combustion vehicles (ICV’s). They have much higher efficiencies and lower emissions than ICV’s, while still having the ability to travel long range and refuel...
Resource Type:: Masters Thesis

Investigation and comparison of generators for dynamic operation in ocean buoys

Creator:: Schacher, Anthony Clinton
Abstract:: A significantly untapped renewable energy source exists in the world's oceans. It is estimated that if 0.2% of the ocean's untapped energy could be harnessed, it could provide power sufficient for the entire world. Ocean energy extraction is an old concept, and it is currently seeing the benefit of advancing...
Resource Type:: Masters Thesis

Design of on-line arithmetic networks for signal processing applications : a color filter implementation

Creator:: Sinky, Mohammed H.
Abstract:: Networks of on-line modules for Digital Signal Processing (DSP) applications have been designed and analyzed in many papers. Various arguments have been made for on-line arithmetic over other bit-serial and parallel approaches. However, the majority, if not all of the on-line network implementations presented throughout the literature do not take...
Resource Type:: Masters Thesis

Adaptive semi-soft handoff for cellular IP networks

Creator:: Nurvitadhi, Eriko
Abstract:: Rapid advances in wireless networking have led to more mobile phones, PDAs, and other digital mobile devices becoming ubiquitously connected to the Internet. As the demand of delay sensitive real-time applications for these portable devices increases, providing seamless connectivity to wireless networks becomes a critical issue. For this reason, a...
Resource Type:: Masters Thesis

Eager data transfer mechanism for user-level network protocol

Creator:: Won, Chulho
Abstract:: This dissertation investigates the use of a hardware mechanism called Eager Data Transfer (EDT) for achieving the reduction of communication latency for user-level network protocol. To reach the goal, the dissertation addresses the following research issues. First, the development of a communication system performance evaluation tool called Linux/SimOS is presented....
Resource Type:: Dissertation

A comparison of substrate noise coupling in heavily doped and lightly doped substrates for mixed-signal circuits

Creator:: Ayers, James S.
Abstract:: An analysis of substrate noise coupling in mixed-signal circuits has been performed in the TSMC 0.25 [mu]m lightly doped and heavily doped CMOS processes. Methods to minimize noise coupling in both the chip design and board design phases are presented along with techniques for accurate circuit simulation of noise coupling....
Resource Type:: Masters Thesis

WebWEPP version 2.0 : Web-based water erosion prediction project

Creator:: Gyu Han, Hong
Abstract:: The WEPP (Water Erosion Prediction Project) application computes soil loss and sediment yield from a field based on the data on crops, management practices, and operations. In order to make WEPP, which is a Windows-based application, easily accessible, Web WEPP (Web-based WEPP) was developed by our research group. Web WEPP...
Resource Type:: Capstone Project

Development and evaluation of X32V

Creator:: Hong, Jumnit
Abstract:: Embedded processors are utilized in many applications with considerable time spent developing and maintaining functionality and performance. Performance being a key factor in adding features such as video and audio to a product. Configurable processors, such as X32V, allow the addition of functionality and performance without large increases in design...
Resource Type:: Masters Thesis

Modeling architecture from photographs : an implementation of the Façade system

Creator:: Heath, Zach
Abstract:: The Façade photometric modeling system, developed by Paul E Debevec at Berkley, is capable of transforming a sparse set of camera images of an architectural scene into a photorealistic 3D model. Users define a rough model out of primitive building blocks and mark where a portion of the edges of...
Resource Type:: Capstone Project

Accurate and efficient simulation of synchronous digital switching noise in system on a chip

Creator:: Habal, Husni
Abstract:: A new method is presented to compress switching information in large digital circuits. This is combined with an efficient approach of generating the noise signatures of cells in a digital library that results in an accurate and efficient approach for estimating the noise generated in digital circuits. This method provides...
Resource Type:: Masters Thesis

OCC-CDMA system design for wireless communications

Creator:: Rajatasereekul, Thunyawat
Abstract:: In modern telecommunication applications, the need for high-reliability and high data rate is important because of factors such as a higher demand in multimedia capability of mobile devices and the exponentially increasing number of subscribers. Wireless communications in today’s technology have many limitations due to channel imperfections, which result in...
Resource Type:: Masters Thesis

Behaviors and strategies in end-users' collaborative programming

Creator:: Liu, Zheng
Abstract:: Traditionally, research into end-user programming has focused on how to make programming more accessible to end users conducting the programming activities all by themselves. However, few researchers have considered introducing the concept of collaborative programming into the area of end-user programming, and how the programming environments and devices should be...
Resource Type:: Masters Thesis

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