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2006

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The Effect Of Student Self -Described Learning Styles Within Two Models Of Teaching In An Introductory Data Mining Course, Matthew A. North Dec 2006

The Effect Of Student Self -Described Learning Styles Within Two Models Of Teaching In An Introductory Data Mining Course, Matthew A. North

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines the roles of learning styles and teaching methodologies within a data mining educational program designed for non-Computer Science undergraduate college students. The experimental design is framed by a discussion of the history and development of data mining and education, as well as a vision for its future.;Data mining is a relatively new discipline which has grown out of the fields of database management and data warehousing, statistics, logic, and decision sciences. Over the course of its approximately 15 year history, data mining has emerged from its genesis within the academic and commercial research and development arenas to …

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Development Of Fpga Based Low-Power Digital Pulse Height Fitting, Santosh Hooli Dec 2006

Development Of Fpga Based Low-Power Digital Pulse Height Fitting, Santosh Hooli

Graduate Theses, Dissertations, and Problem Reports (ETD)

Energetic ion analyzers and mass spectrometers commonly produce electronic pulses whose amplitude and time depend on the energy, mass, and direction of an incoming ion. Analysis of the nanosecond scale timing and amplitude of these approximately 10-12C charge pulses has required complex, fast analog electronics. Given recent advances in digital electronics, it seems likely that converting much of the analysis to digital form will result in a simpler, lower cost, and lower power electron package. The aim of the thesis is to develop an algorithm to fit a 500 ns long noisy voltage pulse obtained from an ion analyzer to …

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Stratigraphic And Structural Analysis Of The J1 Sandstone, Scotts Bluff Trend, Scotts Bluff And Morrill Counties, Nebraska, Jeremy M. Wolpert Dec 2006

Stratigraphic And Structural Analysis Of The J1 Sandstone, Scotts Bluff Trend, Scotts Bluff And Morrill Counties, Nebraska, Jeremy M. Wolpert

Graduate Theses, Dissertations, and Problem Reports (ETD)

Scotts Bluff Trend is a group of 10 oil fields that produce from the Cretaceous J Sandstone. Production was previously thought to be aligned along this trend due to structural influence.;For this study well logs were utilized in analyzing structural and stratigraphic elements, as well as hydrocarbon predictability. The Scotts Bluff Trend appears to sit upon a residual structural high. A comprehensive look reveals that stratigraphic influence is superimposed on the structural high.;J1 Sandstone reservoirs were mapped assuming a NW--SE depositional trend. Deposition was in a shallow-marine bar environment. Central-bar, bar-margin and interbar facies are recognized which interfinger laterally into …

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Modulation Of Gene Expression And Dna Adduct Formation By Chlorophyllin In Human Mammary Cells Exposed To Benzopyrenes, Kaarthik John Dec 2006

Modulation Of Gene Expression And Dna Adduct Formation By Chlorophyllin In Human Mammary Cells Exposed To Benzopyrenes, Kaarthik John

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study investigated metabolic activation by benzopyrenes (BP and B[e]P) in human mammary cells and modulation by chlorophyllin (CHL, a chemopreventive agent). Among 6 NHMEC strains monitored using microarrays, 54 genes were up-regulated and 11 down-regulated by signal log ratio (SLR) ≥ 1.5 on treatment with BP alone. Pre CHL + post BP+CHL treatment up-regulated the expression of 129 genes and down-regulated those of 35 genes by SLR ≥ 1.5. Studies on CYP1 gene induction and BP-DNA adduct formation among 20 NHMECs revealed wide inter-individual variations both in the induction (3-96-fold for CYP1A1 and 4-43-fold for CYP1B1, respectively) and modulation …

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Model-Based Risk Assessment, Walid M. Abdelmoez Dec 2006

Model-Based Risk Assessment, Walid M. Abdelmoez

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this research effort, we focus on model-based risk assessment. Risk assessment is essential in any plan intended to manage software development or maintenance process. Subjective techniques are human intensive and error-prone. Risk assessment should be based on architectural attributes that we can quantitatively measure using architectural level metrics. Software architectures are emerging as an important concept in the study and practice of software engineering nowadays, due to their emphasis on large-scale composition of software product, and to their support for emerging software engineering paradigms, such as product line engineering, component based software engineering, and software evolution.;In this dissertation, we …

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Multispectral Iris Recognition Analysis: Techniques And Evaluation, Christopher K. Boyce Dec 2006

Multispectral Iris Recognition Analysis: Techniques And Evaluation, Christopher K. Boyce

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis explores the benefits of using multispectral iris information acquired using a narrow-band multispectral imaging system. Commercial iris recognition systems typically sense the iridal reflection pertaining to the near-infrared (IR) range of the electromagnetic spectrum. While near-infrared imaging does give a very reasonable image of the iris texture, it only exploits a narrow band of spectral information. By incorporating other wavelength ranges (infrared, red, green, blue) in iris recognition systems, the reflectance and absorbance properties of the iris tissue can be exploited to enhance recognition performance. Furthermore, the impact of eye color on iris matching performance can be determined. …

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A Methodology For Software Performance Modeling And Its Application To A Border Inspection System, Paola Bracchi Dec 2006

A Methodology For Software Performance Modeling And Its Application To A Border Inspection System, Paola Bracchi

Graduate Theses, Dissertations, and Problem Reports (ETD)

It is essential that software systems meet their performance objectives. Many factors affect software performance and it is fundamental to identify those factors and the magnitude of their effects early in the software lifecycle to avoid costly and extensive changes to software design, implementation, or requirements. In the last decade the development of techniques and methodologies to carry out performance analysis in the early stages of the software lifecycle has gained a lot of attention within the research community. Different approaches to evaluate software performance have been developed. Each of them is characterized by a certain software specification and performance …

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Conduct Disorder And Future Substance Abuse: Factors Affecting Drug Treatment Outcome, Matthew E. Goldfine Dec 2006

Conduct Disorder And Future Substance Abuse: Factors Affecting Drug Treatment Outcome, Matthew E. Goldfine

Graduate Theses, Dissertations, and Problem Reports (ETD)

Prior research has demonstrated a relation between Conduct Disorder (CD), its severity (total number of symptoms), and substance use disorder (SUD). The current study examined 105 opioid dependent adults for a history of CD and treatment outcome characteristics over a 16 week SUD treatment program. Results demonstrate the effects of CD in regards to poorer improvement of summed Addiction Severity Index composite scores and amphetamine use. Improvement in cocaine use was found to be associated with a CD diagnosis. CD severity was found to lead to poorer improvement as measured by psychiatric impairment and alcohol intoxication. However, participants with increased …

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An Interpolation Method For Stream Habitat Assessments With Reference To The Crystal Darter, Kenneth Richard Sheehan Dec 2006

An Interpolation Method For Stream Habitat Assessments With Reference To The Crystal Darter, Kenneth Richard Sheehan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Crystallaria asprella spp. (Elk River crystal darter) is documented only in Elk River, West Virginia. Little life history detail is known about this lotic, benthic-dependent species. Previous studies have led to a very basic understanding of the use of depth, flow and substrate of the crystal darter (Crystallaria asprella), and less is known about the Elk River crystal darter. Due to substrate-specificity in crystal darters (which reportedly bury in sand), a study concerning benthic stream habitat modeling was undertaken. Substrate and depth modeling using >5% of an area sampled at a resolution of 0.093 m2 square spatial data in a …

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Applying Stages Of Change Theory To An Acute Pain Situation: Development Of The Childbirth Stages Of Change Questionnaire (Csocq), Rebecca K. Widoe Dec 2006

Applying Stages Of Change Theory To An Acute Pain Situation: Development Of The Childbirth Stages Of Change Questionnaire (Csocq), Rebecca K. Widoe

Graduate Theses, Dissertations, and Problem Reports (ETD)

Various self-management methods and pharmacological agents are available to relieve childbirth pain. Decisions about pain management during labor have medical, psychological, and sociological ramifications, yet research investigating the selection of childbirth pain management strategies is scarce. The purpose of the current study was to develop a self-report instrument, the Childbirth Stages of Change Questionnaire (CSOCQ), to assess a pregnant woman's readiness to self-manage childbirth pain. Items representative of five levels of readiness were generated by experts. Next, 3 pregnant women evaluated items for content validity. A pilot CSOCQ was administered to 536 undergraduate women. Factor analysis and item-reliabilities were conducted …

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Child Distress During Immunization: The Influence Of Child And Parent Individual Difference Variables, Melissa Demore Dec 2006

Child Distress During Immunization: The Influence Of Child And Parent Individual Difference Variables, Melissa Demore

Graduate Theses, Dissertations, and Problem Reports (ETD)

Routine childhood immunization injections result child distress, which may have lasting negative effects on children, parents, and staff, and impact adherence to schedules of immunization. Aims of the current study were to (a) examine the role of child and parent individual difference variables in relation to child immunization distress, and (b) determine whether child distress predicts future immunization schedule adherence.;Parents of 50 children (aged 12--18 months) attending a visit to a pediatric medical clinic for purposes of immunization completed measures of child temperament, parent psychopathology, immunization beliefs, and prior medical distress of the child. Child distress during the immunization injection …

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Economic Evaluation Of Air Pollution Reduction Of Phase I Power Plants In West Virginia: An Output Distance Function Approach, Huilan Li Dec 2006

Economic Evaluation Of Air Pollution Reduction Of Phase I Power Plants In West Virginia: An Output Distance Function Approach, Huilan Li

Graduate Theses, Dissertations, and Problem Reports (ETD)

Air pollutants from coal-fired power plants are nonmarket environmental bads. Title IV of the 1990 Clean Air Act Amendments (CAAA) sets the stage for the dirtiest power plants to reduce emissions of SO2 and NO x in two phases. Title IV allocates plants SO2 allowances as a variation of "pollution rights" based on averaged historical emission levels and allows free-trade of allowances. This is the world's first large scale pollutant trading market. Trading allows for improved efficiency, flexibility, and reduced pollution.;This study employs the output distance function approach to evaluate the pollution reduction behavior and efficiency of West Virginia power …

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The Effects Of Age, Instructions, And Problem Content On Everyday Problem -Solving Outcome Using Two Scoring Procedures, Tara L. Neely Dec 2006

The Effects Of Age, Instructions, And Problem Content On Everyday Problem -Solving Outcome Using Two Scoring Procedures, Tara L. Neely

Graduate Theses, Dissertations, and Problem Reports (ETD)

Prior literature has relied on varied methodology to infer conclusions about adult problem solvers; possibly leading to erroneous assumptions about everyday problem-solving performance in adulthood. The present study examined everyday problem-solving performance of 133 younger, middle-aged, and older adults. The goal of the study was to investigate whether different scoring procedures (number vs. strategy type) or participant instructions (self target vs. others target) affected how adults performed on two types of open-ended problem-solving vignettes (home vs. friend problem domains). Differential age patterns were found when comparing the number and types of strategies reported. When assessing total number of solutions generated, …

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Health -Related Quality Of Life In Multiple Sclerosis: Measurement, Predictors And Utilization In Routine Clinical Practice, Vivek S. Pawar Dec 2006

Health -Related Quality Of Life In Multiple Sclerosis: Measurement, Predictors And Utilization In Routine Clinical Practice, Vivek S. Pawar

Graduate Theses, Dissertations, and Problem Reports (ETD)

There are a large number of patient-reported questionnaires to assess health-related quality of life (HRQoL) in patients with multiple sclerosis (MS). In order to make a recommendation for use in clinical practice, a comparison of their psychometric properties is necessary. In addition to accurate assessment, it is also necessary to identify factors that have a significant impact on HRQoL. Further, lack of use of HRQoL information in clinical practice warrants examination of attitudes and behavior of neurologists about HRQoL assessment and their intention to consider incorporating HRQoL information in their decision making. This study collected data from patients with MS …

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Evaluation And Optimization Of Central Vision Compensation Techniques, Ahmed M. El-Sherbeeny Dec 2006

Evaluation And Optimization Of Central Vision Compensation Techniques, Ahmed M. El-Sherbeeny

Graduate Theses, Dissertations, and Problem Reports (ETD)

Non-costly, non-invasive, safe, and reliable electronic vision enhancement systems (EVES) and their methods have presented a huge medical and industrial demand in the early 21st century. Two unique, vision compensation and enhancement algorithms are reviewed and compared, qualitatively optimizing the view of a restricted (or truncated) image. The first is described as the convex or "fish-eye" technique, and the second is the "cartoon superimposition" or "Peli" technique (after the leading author for this research). The novelty in this dissertation is in presenting and analyzing both of these with a comparison to a novel technique, motivated by characterization of quality vision …

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Identifying *Assessment Practices In Undergraduate Accounting Programs, Anna L. Lusher Dec 2006

Identifying *Assessment Practices In Undergraduate Accounting Programs, Anna L. Lusher

Graduate Theses, Dissertations, and Problem Reports (ETD)

The researcher conducted a survey of 786 baccalaureate accounting programs in the United States to determine the content and structure of their assessment plans. The study focused on five essential workplace skills: critical thinking, information literacy, oral communication, problem solving, and written communication. It examined the accounting programs and related assessment plans to determine whether the identified skills were integrated into the curriculum and were identified as learning outcomes in the assessment process. The study evaluated how faculty assess students' skills and how assessment results are used to make changes in programs and to improve student learning. The research also …

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Assessment And Evaluation Of Noise Controls On Roof Bolting Equipment And A Method For Predicting Sound Pressure Levels In Underground Coal Mining, Rudy J. Matetic Dec 2006

Assessment And Evaluation Of Noise Controls On Roof Bolting Equipment And A Method For Predicting Sound Pressure Levels In Underground Coal Mining, Rudy J. Matetic

Graduate Theses, Dissertations, and Problem Reports (ETD)

Over-exposure to noise remains a widespread and serious health hazard in the U.S. mining industries despite 25 years of regulation. Every day, 80% of the nation's miners go to work in an environment where the time weighted average (TWA) noise level exceeds 85 dBA and more than 25% of the miners are exposed to a TWA noise level that exceeds 90 dBA, the permissible exposure limit (PEL). Additionally, MSHA coal noise sample data collected from 2000 to 2002 show that 65% of the equipment whose operators exceeded 100% noise dosage comprise only seven different types of machines; auger miners, bulldozers, …

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Forwarding Strategies And Optimal Power Allocation For Coherent And Noncoherent Relay Networks, Somak Datta Gupta Dec 2006

Forwarding Strategies And Optimal Power Allocation For Coherent And Noncoherent Relay Networks, Somak Datta Gupta

Graduate Theses, Dissertations, and Problem Reports (ETD)

In fading wireless channels, relays are used with the aim of achieving diversity and thus overall performance gain. In cooperative relay networks, various forwarding techniques like amplify and forward (AF) and decode and forward (DF) are used at the relay for better throughput and improved BER performance than traditional multihop systems. In a power constrained environment, the performance can be further improved by using an optimal power allocation strategy. The relative position of the relay with respect to the source and destination also has an immense effect on the efficacy of the relay.;We position the relay at various positions in …

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Phytoformations Of Silver And Gold Nanoparticles, Brooke A. Fridley Dec 2006

Phytoformations Of Silver And Gold Nanoparticles, Brooke A. Fridley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Stevia and red beet suspension cultures were examined for uptake of silver from AgNO3 solution. Alfalfa and mung bean sprouts were also studied for silver accumulation when grown in AgNO3 solution. AA analysis confirmed the presence of silver in both sprouts and suspension cultures after exposure to AgNO3 solution, despite the toxic effects of silver on the living matter.;Extract from Pelargonium graveolens underwent reaction with both AgNO3 and KAuCl4 to form silver or gold nanoparticles. For the reaction with AgNO3, light was required to initiate the reaction. In contrast, reactions producing gold nanoparticles did not require light to react. Oxygen …

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Development Of A Numerical Model Of A Two-Dimensional Inertial Gas Separator, Henry Z. Graham Iv Dec 2006

Development Of A Numerical Model Of A Two-Dimensional Inertial Gas Separator, Henry Z. Graham Iv

Graduate Theses, Dissertations, and Problem Reports (ETD)

The separation of gases is required for a variety of applications such as purification for industrial processes, natural gas production, isotope formation, etc. Gas separation is a costly expenditure for businesses, so new and improved methods are being continuously investigated. Separation techniques related to the method in this thesis are diffusion separators such as mechanical centrifuges, vortexes and the use of shock waves to cause the separation based on the molecular weight of the different gases. These methods and others are constantly being investigated and improved to increase their effectiveness.;The purpose of this thesis was to determine if the design …

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Manufacturing, Testing, And Evaluation Of Structural Products With Recycled Polymers, Santosh Amarnath Varthakavi Dec 2006

Manufacturing, Testing, And Evaluation Of Structural Products With Recycled Polymers, Santosh Amarnath Varthakavi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Use of recycled plastics started gaining momentum in the U.S. in 1980s due to growing environmental concerns and decreasing landfill capacities. Thermoplastics make up to 80% of the plastics produced today and are widely used in consumer, automotive, and electronic industries. Recycled plastics are being researched and employed for several non-structural and limited structural applications. However, their widespread usage will depend on developing mass manufacturing techniques, value added structural products, and cost effective processing methods. This study focuses on developing and evaluating several structural products such as rectangular grids, rectangular ribbed panels, hexagonal ribbed panels, signposts, signboards, and window panels …

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Ground Penetrating Radar (Gpr) Based System For Nondestructive Detection Of Interior Defects In Wooden Logs, Dayakar Devaru Dec 2006

Ground Penetrating Radar (Gpr) Based System For Nondestructive Detection Of Interior Defects In Wooden Logs, Dayakar Devaru

Graduate Theses, Dissertations, and Problem Reports (ETD)

A previous study used GPR to scan logs and the scanned data was processed and analyzed using RADAN software. This data processing using RADAN software needs an expert and is time consuming. Also, the output from RADAN software cannot be used to generate manufacturing process instructions since it will be in the form of an image. For online implementation of GPR scanning, a quick automated defect detection system with numerical output is required.;To incorporate automated defect detection system, a MATLAB algorithm has been developed. Validation of the MATLAB algorithm output has been done by comparing with the results of RADAN …

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Impact Of Optimally Placed Var Support On Electricity Spot Pricing, Ramesh Kumar V. Khajjayam Dec 2006

Impact Of Optimally Placed Var Support On Electricity Spot Pricing, Ramesh Kumar V. Khajjayam

Graduate Theses, Dissertations, and Problem Reports (ETD)

In view of deregulation and privatization processes, electricity pricing becomes one of the most important issues. The increases in power flows and environmental constraints are forcing electricity utilities to install new VAR equipment to enhance network operation. In this thesis a nonlinear multi-objective optimization problem has been formulated to maximize both social welfare and the maximum distance to collapse point in an open power market using reactive support like Static Var Compensator (SVC). The production and consumption costs of reactive power are intended to provide proper market signals to the electricity market agents. They are included in the multi-objective Optimal …

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Selection Of Pilot Buses For Var Support And Voltage Stability Risk Analysis, Talpasai Lakkaraju Dec 2006

Selection Of Pilot Buses For Var Support And Voltage Stability Risk Analysis, Talpasai Lakkaraju

Graduate Theses, Dissertations, and Problem Reports (ETD)

The primary objective of this thesis is to develop an index for the placement of reactive power support devices to ensure reliable operation of power systems. It is especially aimed at improving the load voltage profile and system security when loading is increased. Maintaining a good system voltage profile and security is an important aspect in voltage stability studies, especially with the ever increasing power consumption and system disturbances or contingencies. A new VAR support placement algorithm is developed using a standard continuation power flow and N-1 contingency criterion to pinpoint the best locations for the placement of VAR devices. …

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Use Of Data Mining For Investigation Of Crime Patterns, Manoday D. Padhye Dec 2006

Use Of Data Mining For Investigation Of Crime Patterns, Manoday D. Padhye

Graduate Theses, Dissertations, and Problem Reports (ETD)

Lot of research is being done to improve the utilization of crime data. This thesis deals with the design and implementation of a crime database and associated search methods to identify crime patterns from the database. The database was created in Microsoft SQL Server (back end). The user interface (front end) and the crime pattern identification software (middle tier) were implemented in ASP.NET. Such a web based approach enables the user to utilize the database from anywhere and at anytime. A general ARFF file can also be generated, for the user in Windows based format to use other Data Mining …

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Quantifying Effects Of Vehicle Weight And Terrain On Emissions, Fuel Economy, And Engine Behavior, Corey M. Strimer Dec 2006

Quantifying Effects Of Vehicle Weight And Terrain On Emissions, Fuel Economy, And Engine Behavior, Corey M. Strimer

Graduate Theses, Dissertations, and Problem Reports (ETD)

On-board emissions measurement for heavy-duty vehicles has garnered greater significance because 2007 marks the beginning of gaseous emissions monitoring for in-use vehicles in the United States [1]. Emissions compliance must be shown in a "not to exceed" (NTE) zone that emphasizes engine operation at higher power. An over-the-road 1996 Peterbilt tractor was instrumented with the West Virginia University Mobile Emissions Measurement System (MEMS) to determine how often the truck entered the NTE, and the emissions from the vehicle, as it was driven over varying terrain at multiple test weights. Distance-specific NOX emissions increase by approximately X/2% for an X% increase …

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Design, Development And Qualification Of Compact Mobile Emissions Measurement System (Cmems) For Real-Time On-Board Emissions Measurement, Aseem Tiwari Dec 2006

Design, Development And Qualification Of Compact Mobile Emissions Measurement System (Cmems) For Real-Time On-Board Emissions Measurement, Aseem Tiwari

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this study was to design, develop and qualify the Compact Mobile Emissions Measurement System (CMEMS) for real-time on-board measurement of exhaust emissions from heavy-duty diesel vehicles. This study was aimed at developing a system more compact and lighter with respect to the existing Mobile Emissions Measurement System (MEMS), so that the entire system could be mounted on the tail pipe of the test vehicle in order to reduce installation time, power requirements and manpower requirements. This was achieved by judicious selection of commercially available compact solid-state gas analyzers, and development of a sampling system which was significantly …

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Hygrothermal Effects On Free Vibration Characteristics Of Rotating Composite Beams, Sandeep Vennam Dec 2006

Hygrothermal Effects On Free Vibration Characteristics Of Rotating Composite Beams, Sandeep Vennam

Graduate Theses, Dissertations, and Problem Reports (ETD)

Free vibration characteristics of a rotating composite cantilever beams subjected to a hygrothermal environment is studied using the finite element analysis. The problem is formulated using a First Order Shear Deformation theory (FSDT) for composite materials. The finite element formulation is based on variational principles and the equations are solved by a code generated using MATLAB. Hygrothermal effects are incorporated using empirical relations degrading the material stiffness property of the matrix depending on the temperature and moisture concentration. The dynamic analysis of a rotating composite beam are validated by comparing with that available in literature and the hygrothermal incorporation is …

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Development And Integration Of An Organization's Information Systems And Enterprise Web Applications Via Enterprise Portals Of Sap, Ankit Jain Dec 2006

Development And Integration Of An Organization's Information Systems And Enterprise Web Applications Via Enterprise Portals Of Sap, Ankit Jain

Masters Theses & Doctoral Dissertations

This Project uses an enterprise portal which integrates organizations applications and information for different sets of users, enabling employees and managers to carry out there routine tasks from anywhere and anytime, serving as a single point of information for an organization's employees, customer or partners and helps them access a company's services as per their individual access levels. This project also develops an enterprise application which allows employees to file their benefits enrollment online. The application developed is then displayed with in the organizations enterprise portals. The project uses SAP provided development tools and supported technologies and is developed for …

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Legacy Migration Application Inventory, Mark L. Dykstra Dec 2006

Legacy Migration Application Inventory, Mark L. Dykstra

Masters Theses & Doctoral Dissertations

As CNA Surety migrates its legacy mainframe systems off the mainframe and onto a different platform, it is necessary to have an accurate inventory of database tables, batch and on-line programs, reports, flat files (non-database files accessed by batch jobs). Staff members have been working on compiling documentation about each and every on-line program and Cobol program and batch job, and there is a need to store this information in a centralized place. All of this information should be available to developers who work on CNA Surety's mainframe systems, and should be available to designers ofreplacement systems. This project describes …

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