Engineering Commons^™

Investigation Of Quantum Resistor Networks For Electron Wave Computing, Diwakar Ramamurthy

Masters Theses

A new computing methodology using electron waves has been developed with three and four terminal Quantum Resistor Networks as the basic computational structure. Transmission probability matrices for these networks were derived from first principles from which the behavior of single and simultaneously incident electron waves have been accurately evaluated. Classification and scaling laws have also been provided according to their transmission behavior. Techniques for constructing devices from these networks analogous to the logic gates used in digital computing today have been explained. Numerous examples of such devices performing functions like Inversion, OR, and AND have been provided. The operating principles …

A Dynamic Programming-Based Approach To Microarray Image Comparison And Registration, Sunil Bosco Rodrigues

Masters Theses

"Microarray technology is increasingly used as a means of high throughput analysis of human, non-human and plant genomes. Manual methods of array production have inherent imperfections and variations of the quality of output data derived from these arrays. A dynamic programming-based approach is presented to validate the quality of such data prior to insertion into evolving databases in order to assign reliably, genetic aberrations to bio-medical functions. Dynamic programming is used for comparing normal and tumor microarray image pairs and a cost function is developed which gives a value representing the difference between the images. Quality of the image pairs …

A Real-Time Offset Transitioning Algorithm For Coordinating Traffic Signals, Darcy M. Bullock, Montasir Abbas

JTRP Technical Reports

This report introduces an adaptive real-time offset transitioning algorithm that can be viewed as an integrated optimization approach designed to work with traditional coordinated-actuated systems. The Purdue Real-Time Offset Transitioning Algorithm for Coordinating Traffic Signals (PRO-TRACTS) adds to the controllers the ability to adaptively change their offsets in response to changes in traffic pattern, providing an intermediate solution between traditional coordinated-actuated control systems and adaptive control systems. To facilitate implementation, a new National Transportation Communication for ITS Protocol (NTCIP) object for capturing detector actuation at the controller’s level is defined in this report. The unique cycle-based tabulation of volume and …

Follow-Up Study To Fhwa/In/Jhrp-92/22: Development Of A Strategy For Compliance With Epa And Osha Regulations Applicable To Indot Facilities, Lynn A. Corson

JTRP Technical Reports

The objectives of this research were - 1. To assess the department’s progress at selected facilities toward minimizing, reducing, recycling, reusing, reclaiming and eliminating by-products of operations classified as hazardous, solid or special waste. The department’s progress toward modifying or eliminating (such as by contracting) operations or its use of alternate products to reduce potential environmental liability and associated costs will be examined, 2. To observe and analyze selected operations at a sample of facilities visited during the first study [March 1990 – November 1992] to identify where additional strengthening is needed. Additional facilities recommended by the department will also …

Real-Time Determination Of Soil Type, Water Content, And Density Using Electromagnetics, Vincent P. Drnevich, Chih-Ping Lin, Quanghee Yi, Janet Elaine Lovell

JTRP Technical Reports

The primary objective of this study was to explore the potential use of electromagnetic characteristics of soils using the Time Domain Reflectometry (TDR) technique to identify physical properties of soils. Three fundamental studies in this exploration are the frequencydependent electromagnetic properties of soils, the wave propagation in a TDR system, and the inverse analyses of TDR waveforms. The three-phase model for soils was extended to a four-phase model so as to account for the interface effect and hence the soil fineness. The physical parameters of the four-phase model are related to the frequency-dependent dielectric permitivity of the soil through a …

Strategic Drivers Of Software Quality: Beyond External And Internal Software Quality, Ronan Fitzpatrick

Conference papers

Software quality is often considered in terms of the contractual requirements between the supplier and acquirer as described in ISO/IEC 12207 and focuses on software life cycle processes. However, beyond these processes acquirer organisations need to address other issues like complying with new legislation, securing return on investment, and achieving competitive support from their new software investments. Supplier organisations also have issues that they must manage. This paper addresses all of these issues and presents eleven issues, which it calls strategic drivers. Then, using the SOFTWARE QUALITY STAR, builds a new conceptual model where each strategic quality driver is defined …

Sistem Penganalisa Rangkaian (Nas), Mohd Haris Afiatul Syahrizat

Student Works (2000-2009)

Sistem Penganalisa Rangkaian (Nas) merupakan tajuk untuk latihan ilmiah saya bagi memenuhi keperluan Ijazah Sarjana Muda Sains Komputer. Projek ini di bawah penyeliaan Cik Fazidah Othman merupakan sebuah sistem pemantauan aktiviti rangkaian (LAN) “standalone” dan interaktif. Sistem ini dibangunkan berlandaskan kehendak penggunanya yang lebih ditumpukan kepada pentadbir dan jurutera rangkaian sendiri. Sistem ini dapat membantui pentadbir rangkaian dalam memantau aktiviti semasa rangkaian. Ini membolehkan pentadbir rangkaian mendapatkan statistik aktiviti-aktiviti rangkaian yang berjalan yang merangkumi aktiviti internet dan keluar masuk data di dalam rangkaian. Sistem ini dibangunkan menggunakan perisian Microsoft Visual Basic 6.0, Microsoft Access 2000 dan boleh dilarikan pada persekitaran …

Pakej Pembelajaran Sekolah Memandu (Ppsm), Salim Zareyna

Student Works (2000-2009)

Projek ilmiah tahap akhir 2 (WXES 3182) merupakan satu syarat wajib bagi pelajar Fakulti Sains Komputer dan Teknologi Maklumat, Universiti Malaya bagi memenuhi syarat-syarat penganugerahan Ijazah Sarjana Muda Sains Komputer dan Teknologi Maklumat dengan Kepujian. Tajuk yang dipilih dalam projek ini adalah PPSM. PPSM merupakan suatu pakej pembelajaran tambahan selain daripada buku undang-undang lalulintas. Pakej yang akan dibina ini merangkumi pengenalan kepada papan tanda lalulintas, etika memandu di jalanraya dan ujian teori undang-undang. Selain daripada itu, diselitkan juga tips-tips ujian jalanraya dan Kurikulum Pendidikan Pemandu (KPP). Dalam usaha membangunkan pakej ini, perisian Macromedia Director 8 dan Macromedia Flash 5 akan …

Development And Evaluation Of Cement-Based Materials For Repair Of Corrosion-Damaged Reinforced Concrete Slabs, Rongtang Liu, J. Olek

JTRP Technical Reports

In this study, the results of an extensive laboratory investigation conducted to evaluate the properties of concrete mixes used as patching materials to repair reinforced concrete slabs damaged by corrosion are reported. Seven special concrete mixes containing various combinations of chemical or mineral admixtures were developed and used as a patching material to improve the durability of the repaired slabs. Physical and mechanical properties of these mixes, such as compressive strength, static modulus of elasticity, dynamic modulus of elasticity, and shrinkage were evaluated. Durability-related parameters investigated included resistance of concrete to penetration of chloride ions and freeze-thaw resistance. The results …

Development Of A Procedure To Identify Aggregates For Bituminous Surfaces In Indiana, Terry R. West, Kyu H. Cho

JTRP Technical Reports

Adequate friction resistance is needed to prevent pavement slipperiness allowing vehicles to stop in a reasonable distance. For stone mastic asphalt surfaces, friction resistance is mainly a function of the interaction between the aggregates exposed at the road surface and vehicle tires. Aggregate performance is reduced with time by wear and polishing as a consequence of vehicular traffic. In this research a method to investigate performance based on physical, chemical and petrographic factors has been evaluated. The objective was to develop a laboratory method to test Indiana dolomite, limestone, sandstone, and gravel aggregates to predict friction resistance in the field …

Development Of Low Cost Retaining Walls For Indiana Highways, Philippe L. Bourdeau, Patrick J. Fox, David Joseph Runser, Jin-Pyo Lee

JTRP Technical Reports

Low-cost alternatives to traditional modular facing reinforced soil retaining walls were reviewed, on the basis of published data and information. Technological information, design methods and observed performance of segmental facing reinforced soil walls were used for this review. Guidelines are proposed for selection, design and construction of such retaining walls, within a limited range of conditions, in Indiana highway projects.

Evaluation And Policy For Bridge Deck Expansion Joints, Luh M. Chang, Yao-Jong Lee

JTRP Technical Reports

This report is an overview of the research that was performed for the Indiana Department of Transportation (INDOT) concerning the performance of bridge deck expansion joints. The purpose of the research is to evaluate several types of joints currently in use and also provides the evaluation criteria for rating the joint condition. The types of joints investigated are Compression Seal (B.S.) joint, Strip Seal (S.S.) joint, Integral Abutment Jointless (I.A.) joint, Poured Silicone (XJS) joint, and Polymer Modified Asphalt (LDI and PaveTech) joint. The research was performed by questionnaire surveys, Roadway Management data analysis, expert interviews, and site assessment. The …

Evaluation Of Zero Velocity Deicer Spreader And Salt Spreader, Tommy E. Nantung

JTRP Technical Reports

Increasing traffic volumes and declining resources have led to a need for innovative winter maintenance strategies, techniques, equipment and materials while not sacrificing the safety of the traveling public. Any reduction of salt usage will ease fund for other maintenance operations while minimizing salt runoff on surface and ground waters and effect of road salt on roadside vegetation. In the past, conventional spreaders have been designed for sand and are generally incapable of metering the lower, more precise amount of salt desired. The use of materials in solid form demands critical timing of the application to minimize loss of the …

Seismic Design Of Deep Foundations, Antonio Bobet, Rodrigo Salgado, Dimitrios Loukidis

JTRP Technical Reports

Detailed investigations of pile foundations affected by earthquakes around the world since the 1960’s indicate that pile foundations are susceptible to damage to such a degree that the serviceability and integrity of the superstructure may be affected. Although numerous cases of seismically damaged piles are reported, the detailed mechanisms causing the damage are not yet fully understood. As a consequence, an effective seismic design of pile foundations has not been yet established in practice. Many road bridge structures supported on piles exist in southern Indiana. This is a region where the risk of occurrence of a dangerous earthquake is high …

Piv Measurements Of Channel Flow With Multiple Rib Arrangements, Harald Roclawski

University of Kentucky Master's Theses

A model of a gas turbine blade cooling channel equipped with turbulators and a backward facing step geometry was examined. Up to four turbulators oriented cross-stream and inclined 45° to the flow direction were mounted in the channel. The blockage ratio b/H of the turbulators and the height h/H of the backward facing step was 0:125 and 0:14 respectively. The number of turbulators as well as their size was varied. In a preliminary investigation, hot-wire and pressure measurements were taken for three different Reynolds numbers (5,000, 12,000, 18,000)in the center plane of the test section. Subsequently, particle image …

Adaptive Notch Filter For Single And Multiple Narrow-Band Interference, Choy Chun Sin

Theses : Honours

In this project, the adaptive notch filter for single and Multiple narrow-band interference is implemented using simplified LMS algorithm. Performances of the LMS adaptive algorithms is evaluated and analysed through simulation on the computer using Matlab. The algorithm are then written in C programme and implemented using Texas Instrument Tool which consist of TMS320C54x EMV board and Code Composer Studio.

Bluetooth Software On Linux, Wireless Hand-Held Devices, Teck Khoon Low

Theses : Honours

In order to enable existing computers (non-Bluetooth ready) to connect to a Bluetooth piconet, a Bluetooth hardware device comprising of the Radio antenna, the baseband and control circuit is used. The digital portion of this device is also known as a Host Controller, HC. In the traditional communication lingo, the Bluetooth Hardware functions, as the Data Communication Equipment (DCE) while the Host is the Data terminal Equipment (DTE). This report discusses the theory and implementation of the communication protocol between the Host and the Host Controller, enabling communication between the computer and the Bluetooth hardware

Test 1790: 9300 T 24 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1796: Case Ih Stx 275/New Holland Tj 275 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1797: Case Ih Stx 325/New Holland Tj 325 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Non–Water–Stressed Baseline As A Tool For Dynamic Control Of A Misting System For Propagation Of Poinsettias, Sérgio Zolnier, Richard S. Gates, Robert G. Anderson, Sue E. Nokes, George A. Duncan

Biosystems and Agricultural Engineering Faculty Publications

A technique is presented for dynamically adjusting misting intervals during propagation of vegetative cuttings. A crop setpoint temperature for activation of misting was defined by a "non-water-stressed baseline" concept, using infrared thermometry to acquire canopy temperature for plant feedback. The critical crop setpoint temperature was calculated from instantaneous values of air temperature, incident radiation, and air vapor pressure deficit (VPD_air). Misting was activated when the actual crop temperature exceeded the critical crop setpoint temperature. The dynamic control was shown to have the potential to reduce the amount of applied water from 9 to 12 times during low levels …

Design And Implementation Of An Intranet-Solution Especially With Workflow Aspects, Robert Loew

Theses

An Intranet support a new or simply an easier information system for all the workers within a company using internet technology. On the one hand, employees can use Web technology and very simple tools to provide and navigate information. On the other hand, the costly and time-consuming business of installing and maintaining software on local PCs can be avoided by using Browser-based Intranet applications. Ideally, it would be possible to access all forms of information processing using one and the same Web browser. This is the aim of the Intranet Project upon which this thesis is based.

Various technologies for …

Uniform Random Number Generation Using Pseudorandom Binary Sequences, Susan Rea

Theses

Random numbers have conventionally been used in a range of applications such as numerical analysis, lotteries and computer simulation and as cryptographic keys. The algorithms used for the production of random numbers are termed pseudorandom, as the numbers produced are not truly random as they emanate from a deterministic periodic source that is they are predictable if a subset of the sequence is known. However, for most applications these pseudorandom number sources are entirely suitable.

For cryptographic key sources, however, the random number sequences must be statistically good and difficult to predict. Linear feedback shift registers are presented in this …

Global Engineering In An Interconnected World: An Upper Division General Education Cluster At Old Dominion University, Sushil Chaturvedi, Gary Crossman, William Swart, Joseph Betit

Mechanical & Aerospace Engineering Faculty Publications

The “Global Engineering in an Interconnected World” cluster of courses fosters among students an awareness and understanding of global technology, quality assurance standards, and differences in cultural, communication, and business practices and their impact on a global work environment. This cluster will prepare the growing numbers of students who will accept employment with global firms or find themselves part of a merger or strategic alliance involving multinational corporations. This newly approved cluster of five courses described in the paper has been approved by the University for satisfying University upper-division general education requirements. As a consequence, students choosing this route to …

Stm And Electrochemical Investigation Of Homoepitaxial Boron-Doped Cvd Diamond Films, John B. Cooper, Jason A. Moulton, Sacharia Albin, Bing Xiao

Chemistry & Biochemistry Faculty Publications

Homoepitaxial growth of boron-doped CVD diamond films was carried out on (100) and (111) oriented substrates. Atomic resolution images were obtained for both (100) and (111) surfaces using scanning tunneling microscopy. STM images reveal the presence of a 2x1-monohydride reconstruction for the untreated (100) surface and a lxl reconstruction for the untreated (111) surface. No other atomically resolved reconstructions were observed under a wide range of growth conditions. Non-aqueous electrochemical investigations were carried out on the films exhibiting atomically resolved reconstructions. Evidence for potential-induced surface-reconstruction and surface chemical modification of the (100) 2xl-monohydride surface has been observed.

Innovative Student Research Projects, Alok K. Verma

Engineering Technology Faculty Publications

Innovation in capstone projects, which should not be limited by external funding, is discussed. It is found that the properly designed unfunded senior projects can offer quality learning experience for students. Involvement of industry is a key factor for a successful capstone course. Innovative research projects can be offered under various organizational framework.

Clustered Simulation Modeling For The Probabilistic Analysis Of Large Networks, Amr Ahmed Kandil

Archived Theses and Dissertations

No abstract provided.

Evaluation Of The Implementation Of Hot Pour Sealants And Equipment For Crack Sealing In Indiana, David R. Ward

JTRP Technical Reports

This study was initiated as an implementation effort that would monitor, assist with and report on a new maintenance activity involving the trial use of hot pour crack sealant. Work associated with this new activity was qualitatively assessed over a period of several years. INDOT began by purchasing six oil-jacketed melters that were distributed to various sub-districts. Previous INDOT research indicated using hot pour sealant might save on labor expense because it lasted significantly longer than the current emulsion. Random observations were made of various sub-district crews using hot pour sealant and the results were reported to appropriate personnel. Inspections …

Development And Application Of Linear Scheduling Techniques To Highway Construction Projects, D. J. Harmelink, Rene Antonio Yamin

JTRP Technical Reports

Crucial to the successful outcome of major highway construction and reconstruction projects today is the ability to accurately plan, predict and control the construction process. Evermore sensitive to budget control, schedule control, resource allocation and impacts on the motoring public, highway constructors today require sophisticated project management tools to achieve project goals. One of the tools recently being used across the country is project scheduling. The use of scheduling techniques on highway projects has grown out of the successful application of these methods to building construction for the past 20 to 30 years. Unfortunately, the effective application of traditional scheduling …

Development Of Improved Pavement Performance Prediction Models For The Indiana Pavement Management System, Sedat Gulen, Karen Zhu, John Weaver, Jie Shan, William F. Flora

JTRP Technical Reports

The Indiana Department of Transportation (INDOT) is increasingly committed to the Pavement Management System. For this reason, updated simple pavement performance prediction models with the least number of explanatory (independent) variables are required to predict the performance of various pavement types for future planning of rehabilitation or replacement. In Indiana, the two main pavement types are jointed concrete pavement (JCP) and bituminous pavement (BIT). 1999 and 2000 year data were used to develop regression models for different pavement types for the Interstate and Non- Interstate Roads systems. The International Roughness Index (IRI), in inches per mile, was mainly used for …