Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2006

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 61 - 90 of 1296

Full-Text Articles in Entire DC Network

Real-Time Vehicle Performance Monitoring With Data Integrity, William George Jenkins Dec 2006

Real-Time Vehicle Performance Monitoring With Data Integrity, William George Jenkins

Theses and Dissertations

A cornerstone of next generation intelligent transportation systems (ITS) is a seamless integration of in-vehicle networking with existing wireless telephony infrastructure. Remote access to on-board diagnostics and performance data is a crucial requirement for ITS. This thesis investigated the performance benefits of a data integrity buffering technique for an extensible vehicle position and performance tracking system (VPPTS). In support of this investigation, a VPPTS prototype was developed. The prototype used available technologies and interfaces to industry-standard communications channels and is a demonstration of a next-generation intelligent transportation system (ITS). The data integrity buffering technique under investigation was shown to provide …

Go to article

The Use Of Dietary Fat Supplementation On Growth, Reproduction And Performance Characteristics Of Replacement Beef Heifers, Alecsandro Rufino Dos Santos Dec 2006

The Use Of Dietary Fat Supplementation On Growth, Reproduction And Performance Characteristics Of Replacement Beef Heifers, Alecsandro Rufino Dos Santos

Theses and Dissertations

The purpose of these studies was to evaluate the effects of a dietary fat supplementation on growth, reproduction and performance characteristics of replacement beef heifers reared in different management systems (pasture and dry lot conditions). The objectives were (1) to quantify changes in body composition traits and growth performance of replacement beef heifers fed different levels of fat in the supplemented diet,(2) to determine the reproductive performance of heifers supplemented with dietary fat in either a ryegrass pasture system or a dry lot system, and (3) to determine the value of real-time ultrasound technology (RTU) as an alternative technology to …

Go to article

When Brand Extensions Backfire: Exploring The Reciprocal Effect Of Negative Information Of Brand Extensions On Parent Brand, Lin Zhang Dec 2006

When Brand Extensions Backfire: Exploring The Reciprocal Effect Of Negative Information Of Brand Extensions On Parent Brand, Lin Zhang

Theses and Dissertations

Brand equity has been highlighted as one of the most valuable assets one company possesses. However, negative information related with brand extension, such as brand extension failures, can lead to negative perceptions, which may be difficult to reverse. Therefore, it is of critical interest to managers and academicians to have better understanding of the effect of brand extension on the parent brand, especially its negative effect. In this research, the focus is to investigate the feedback effect of negative information of brand extension on the parent brand. This dissertation focuses on how negative information of brand extension impacts the parent …

Go to article

The Influence Of Instructional Coaches On Improving Teaching And Student Performance, Mariella Hodges Simons Dec 2006

The Influence Of Instructional Coaches On Improving Teaching And Student Performance, Mariella Hodges Simons

Theses and Dissertations

Instructional coaching is emerging as a job-embedded professional development tool for schools to utilize in an effort to improve teaching practice and student achievement. Since there is a lack of understanding of the differing roles served by instructional coaches in schools and the functions they perform that influence teacher utilization of best practice procedures in teaching, this study concentrated on giving voice to teachers and administrators regarding their concerns and changes in teaching behavior. By listening to the assertions of educators employed within the schools housing an instructional coach, it is possible to gain an in-depth understanding of how the …

Go to article

User Involvement And Perceived Usefulness Of Information Technology, Sanabel El-Hakeem El-Attar Dec 2006

User Involvement And Perceived Usefulness Of Information Technology, Sanabel El-Hakeem El-Attar

Theses and Dissertations

The present research investigated the extent to which users? perceived usefulness of IT was related to: (1) the user involvement in its design and implementation; (2) the user hierarchical position in the organization; (3) user years of service in the bank; and (4) user years of experience in banking business. In addition, the researcher examined the differences between males and females regarding the user involvement in design, involvement in implementation, and perception of usefulness of Information Technology (IT). The fifty-two bank users who participated in the study were volunteers from a major bank in the State of Mississippi. Seven research …

Go to article

The Osmotic Second Virial Coefficient As A Predictor Of Protein Stability, Kusum S. Verma Dec 2006

The Osmotic Second Virial Coefficient As A Predictor Of Protein Stability, Kusum S. Verma

Theses and Dissertations

The number of protein containing therapeutic drugs is growing day by day. Lack of proper storage conditions can cause protein degradation or aggregation. The osmotic second virial coefficient, B22, is a thermodynamic parameter, which can predict protein interaction with other proteins and solvent molecules. B22 has been successfully used as predictor of crystallization conditions for a protein in the solution, and in this study an attempt has been made to relate B22 as a predictor of stability of the protein. Static light scattering was used to measure B22 in our studies. B22 and the solubility of three proteins were measured …

Go to article

A Social Exchange Perspective Of Intention To Quit, Shawn Michael Keough Dec 2006

A Social Exchange Perspective Of Intention To Quit, Shawn Michael Keough

Theses and Dissertations

This dissertation introduces a social exchange perspective of intention to quit and examines the relationship of several work-related and non work-related variables with intention to quit. Specifically, the relationships between the following ? perceived organizational support (POS), perceived supervisor support (POS), family responsibility, kinship responsibility ? and intention to quit were examined. POS and PSS were examined to provide a better understanding of the role each plays in the development of intention to quit. Family responsibility and kinship responsibility were examined because prior research has generally ignored the role each may play in the development of intention to quit. A …

Go to article

Establishment Of Blackberries And Detection And Management Of Raspberry Crown Borer, Edward Heard Dec 2006

Establishment Of Blackberries And Detection And Management Of Raspberry Crown Borer, Edward Heard

Theses and Dissertations

Evaluations of tactics for detection and management of raspberry crown borer, RCB, Pennisettia marginata (Harris) on blackberries were performed in Mississippi from January 2005 - July 2006. Randomized split plots with infested blackberries and certified nursery stock of two recommended cultivars, thorny ?Chickasaw? and thornless ?Apache? were planted. Pest management tactics targeting RCB included drenches: chemical insecticide bifenthrin, recently registered for RCB management; experimental pesticide E2Y45; and entomopathogenic nematodes Steinernema feltiae. Insect pheromones (E,Z)3-13-octadecadien-1-ol and (E,Z)3-13-octadecadien-1-yl-acetate were evaluated as RCB lures. Effects of fungicides captan, pyraclostrobin + boscalid, lime-sulfur and insecticide acetamiprid on viability and infectivity of entomopathogenic nematode species, …

Go to article

Diagonal And Horizontal Stiffeners For Shear Transfer In Rigid Frame Square Knees, William Franklin Heard Dec 2006

Diagonal And Horizontal Stiffeners For Shear Transfer In Rigid Frame Square Knees, William Franklin Heard

Theses and Dissertations

The research addresses the effect of diagonal and horizontal stiffeners on shear transfer in rigid frame square knees. Rigid frame square knees are an integral component of pre-manufactured metal building systems. This paper examined a more efficient design of the rigid frame square knee. Five full-scale laboratory tests on square knee joints were performed to verify the effects of a diagonal stiffener on shear transfer. Two frames were fabricated without diagonal stiffeners, and three frames were fabricated with 1/8- inch- thick diagonal stiffeners, not extending the full diagonal length of the knee web. Experimental results, coupled with a finite element …

Go to article

Attitudes And Perceptions Of Mississippi Career And Technology School Administrators Toward Technology Integration And Their Knowledge And Use Of The National Educational Technology Standards For School Administators (Nets-A), Janice Holman Sears Dec 2006

Attitudes And Perceptions Of Mississippi Career And Technology School Administrators Toward Technology Integration And Their Knowledge And Use Of The National Educational Technology Standards For School Administators (Nets-A), Janice Holman Sears

Theses and Dissertations

The purpose of this study was to examine Mississippi?s Career and Technology School Administrators? attitudes and perceptions toward technology integration and to determine their knowledge and use of the NETS∙A. The study contributed to the literature on technology integration and the NETS∙A in the secondary classroom. The research design for this study was descriptive and correlational. A pilot study was conducted prior to the commencement of the research study in which no problems were identified. Out of a population of 144 Mississippi Career and Technology School Administrators, 102 participated in the study. A survey instrument consisting of three parts was …

Go to article

Multiscale Structure-Function Relations Of A Tendon, Lakiesha Nicole Williams Dec 2006

Multiscale Structure-Function Relations Of A Tendon, Lakiesha Nicole Williams

Theses and Dissertations

In 1998, the United States National Committee on Biomechanics (USNCB) established an evolving discipline called Functional Tissue Engineering (FTE). In establishing this discipline, the goals of the USNCB were to advance FTE by increasing awareness among tissue engineers about the importance of restoring function when engineering tissue constructs. Another goal was to encourage tissue engineers to incorporate these functional criteria in the design, manufacturing and optimization of tissue engineered constructs. Based on this motivation, an investigation of the structure and mechanical properties of the rabbit patellar tendon will be executed, with the ultimate goal of creating a multiscale soft tissue …

Go to article

Compact Modeling Of Silicon Carbide (Sic) Vertical Junction Field Effect Transistor (Vjfet) In Pspice Using Angelov Model And Pspice Simulation Of Analog Circuit Building Blocks Using Sic Vjfet Model, Siddharth Purohit Dec 2006

Compact Modeling Of Silicon Carbide (Sic) Vertical Junction Field Effect Transistor (Vjfet) In Pspice Using Angelov Model And Pspice Simulation Of Analog Circuit Building Blocks Using Sic Vjfet Model, Siddharth Purohit

Theses and Dissertations

This thesis presents the development of compact model of novel silicon carbide (SiC) Vertical Junction Field Effect Transistor (VJFET) for high-power circuit simulation. An empirical Angelov model is developed for SiC VJFET in PSpice. The model is capable of accurately replicating the device behavior for the DC and Transient conditions. The model was validated against measured data obtained from devices developed by Mississippi Center for Advanced Semiconductor Prototyping at MSU and SemiSouth Laboratories. The modeling approach is based on extracting Angelov Equations Coefficients from experimental device characteristics using non linear fitting. The coefficients are extracted for different parameters (temperature, width, …

Go to article

A Single Continuous Function As A Model For Fast Rise Exponential Decay Gamma-Ray Bursts, Daniel B. Logue Dec 2006

A Single Continuous Function As A Model For Fast Rise Exponential Decay Gamma-Ray Bursts, Daniel B. Logue

Theses and Dissertations

A quantitative analysis was performed on a sample of Fast-Rise Exponential-Decay gamma-ray bursts using a continuous fitting function. The data were obtained from the Large Area detector catalogue of the Burst and Transient Source Experiment, which flew from 1991-2000 onboard the Compton Gamma-Ray Observatory. The purpose here is to tabulate from the fits quantities associated with gamma-ray bursts, emphasising peak intensity, duration, and characteristic rates of rising and falling. V/Vmax and duration analyses show that the sample of bursts is representative of the larger population of gamma-ray bursts. A modified asymmetric double sigmoidal was found to fit the background subtracted …

Go to article

Effective Modeling Of Agricultural Practices Within Large-Scale Hydrologic And Water Quality Simulations, Zhijun Liu Dec 2006

Effective Modeling Of Agricultural Practices Within Large-Scale Hydrologic And Water Quality Simulations, Zhijun Liu

Theses and Dissertations

The previously developed watershed hydrological and water quality model for St. Louis Bay watershed by Kieffer (2002) was refined and calibrated. The aspects of model development refinement included development of fertilization-related nutrient input parameters, evaluation of nutrient input methods, development of plant uptake-related nutrient input parameters, non-cropland simulation using PQUAL module, and recalibration of hydrology in Jourdan River. The related information of typical cropland management practice based on consultation from Mississippi State University Extention Service personnel was integrated into the watershed model. In addition, the Mississippi Department of Environmental Quality (MDEQ) observed water quality data were analyzed to evaluate the …

Go to article

Development Of A Health Management Information System For The Mountain Gorilla (Gorilla Beringei), Richard Brian Minnis Dec 2006

Development Of A Health Management Information System For The Mountain Gorilla (Gorilla Beringei), Richard Brian Minnis

Theses and Dissertations

The Mountain Gorillas of Central Africa are one of the most highly endangered species in the world, with only 740 individuals surviving. One of the greatest threats to this species is disease. Health of wildlife is continually garnering more attention in the public arena due to recent outbreaks of diseases such as West Nile and High Pathogenic Avian Influenza. However, no system currently exists to facilitate the management and analysis of wildlife health data. The research conducted herein was the development and testing of a health information monitoring system for the mountain gorillas entitled Internet-supported Management Program to Assist Conservation …

Go to article

Clustering Multiple Contextually Related Heterogeneous Datasets, Mahmood Hossain Dec 2006

Clustering Multiple Contextually Related Heterogeneous Datasets, Mahmood Hossain

Theses and Dissertations

Traditional clustering is typically based on a single feature set. In some domains, several feature sets may be available to represent the same objects, but it may not be easy to compute a useful and effective integrated feature set. We hypothesize that clustering individual datasets and then combining them using a suitable ensemble algorithm will yield better quality clusters compared to the individual clustering or clustering based on an integrated feature set. We present two classes of algorithms to address the problem of combining the results of clustering obtained from multiple related datasets where the datasets represent identical or overlapping …

Go to article

Angiotensin Ii Mediated Regulation Of Signal Transduction In Metabolic Syndrome And Cancer, Ravindra Bharatrao Kolhe Dec 2006

Angiotensin Ii Mediated Regulation Of Signal Transduction In Metabolic Syndrome And Cancer, Ravindra Bharatrao Kolhe

Theses and Dissertations

Patients suffering from hypertension often develop non-Insulin dependent diabetes mellitus (NIDDM), a condition caused by Insulin resistance. Though these patients have normal Insulin receptor (IR) and high levels of Insulin in blood, they fail to have IR-mediated signaling essential for glucose uptake and availability. NIDDM usually begins as insulin resistance, a condition in which Insulin Receptor (IR)-mediated signaling that leads to glucose uptake and glucose availability to cells is inhibited even in the presence of high levels of Insulin in blood. Mechanisms for the development of this Insulin resistance in patients suffering from hypertension are unclear. Angiotensin II (Ang II) …

Go to article

An Empirical Study Of Organizational Ubiquitous Computing Technology Adoption: The Case Of Radio Frequency Identification (Rfid) In The Healthcare Industry, Cheon-Pyo Lee Dec 2006

An Empirical Study Of Organizational Ubiquitous Computing Technology Adoption: The Case Of Radio Frequency Identification (Rfid) In The Healthcare Industry, Cheon-Pyo Lee

Theses and Dissertations

Advances in wireless networking and the Internet move us toward ubiquitous and embedded computing. Ubiquitous and embedded computing enhances computer use by making computers available throughout the physical environment while making them effectively invisible to the user. In the ubiquitous and embedded computing era, computers in the traditional sense gradually fade, and information mediated by computers is available anywhere and anytime through devices that are embedded in the environment. Radio Frequency Identification (RFID) is one of the key technologies of the ubiquitous and embedded computing era. RFID is a technology used to identify, track, and trace a person or object …

Go to article

An Energy Efficient Data Cache Implementing 2-Way Lrc Architecture, Saibhushan Musalappa Dec 2006

An Energy Efficient Data Cache Implementing 2-Way Lrc Architecture, Saibhushan Musalappa

Theses and Dissertations

Conventional level one data caches are widely used in high-performance microprocessors. Shrinking process parameters in chip fabrication technology allow a much larger number of devices on a chip with every new generation. This reduction in device size has led to an increase in the magnitude of a type of energy dissipation hitherto ignored?leakage energy. Transistor level leakage energy research for sub-micron processes has shown that leakage can be as much as or greater than the dynamic energy for advanced circuit designs. Researchers have devised techniques to reduce leakage energy at the fabrication and circuit levels. Transitioning the idle circuits from …

Go to article

Molecular-Genetic And Structural Analyses Of The Nifhdkx Proteins Of The Nitrogenase System, Surobhi Lahiri Dec 2006

Molecular-Genetic And Structural Analyses Of The Nifhdkx Proteins Of The Nitrogenase System, Surobhi Lahiri

Theses and Dissertations

The nitrogenase enzyme is the biochemical machiner responsible for the conversion of the largely unavailable nitrogen to the easily assimilable ammonia for living organisms by the process termed as biological nitrogen fixation (BNF). This study was focused on understanding the various structural and functional aspects of the nitrogenase enzyme related to maturation and assembly of the FeMo-cofactor (FeMoco) metallocluster of the MoFe protein (the site for final substrate reduction), development of a dimeric MoFe protein and the structural homology of nitrogenase with other metalloenzymes. This research was specifically directed towards the NifHDKX proteins in which the nifHDK genes are the …

Go to article

Reporter - December 8th 2006, Rit Reporter Staff Dec 2006

Reporter - December 8th 2006, Rit Reporter Staff

University Publications

Letters to the Editor; RIT Forecast; New Orleans Revisited; Saosin Music Review; Phillips Eastern Restaurant; At Your Leisure; Victor Wooten; Adjunct Professors; The RIT Faculty; Winter Sports Preview; RIT Rings; Drafting

Go to article

Enhancements Of A Three Dimensional Target Model For Deep Ground Penetrating Radar Systems, Lonnie Parker Dec 2006

Enhancements Of A Three Dimensional Target Model For Deep Ground Penetrating Radar Systems, Lonnie Parker

Theses

Both commercial and military industries incorporate the use of Ground Penetrating Radar (GPR). In the case of the military, a stationary object, such as a bunker or tunnel, can be detected. Even high-resolution, three-dimensional (3D) and twodimensional (2D) imagery of energy reflected by the target and its surrounding environment can be produced. This is accomplished using multiple scene perspectives inherent in advanced Synthetic Aperture Radar (SAR) techniques. Although underground target detection can be successful, the return data, usually suffers a significant degree of signal degradation due to the ground medium and target composition. A valid theoretical target model must account …

Go to article

2006-12-07 Unm News Minute, University Of New Mexico Communication And Marketing Department Dec 2006

2006-12-07 Unm News Minute, University Of New Mexico Communication And Marketing Department

UNM News Minute 2006

No abstract provided.

Go to article

Investigation Of Poly[4(5)-Vinylimidazole] Composites And Their Potential As Proton Conductive Membranes, Jinghang Wu Dec 2006

Investigation Of Poly[4(5)-Vinylimidazole] Composites And Their Potential As Proton Conductive Membranes, Jinghang Wu

Theses

In order to demonstrate proton conductivity in an imidazole polymer system, novel composite proton exchange membranes were fabricated by casting films of poly[4(5)-vinylimidazole/vinylimidazolium trifluoromethylsufonylimide] and poly(vinylidene fluoride)], PVdF, from mixed dimethylformamide (DMF) solutions. The phase, composition and morphology of these composites were examined by differential scanning calorimetry (DSC), and hot stage polarized microscopy. Thermal stability was evaluated by thermal gravimetric analysis (TGA). Proton conductivity was in a fuel cell test fixture evaluated at GM Fuel Cell Activities in Honeoye Falls, NY. DSC thermograms were characterized by a crystalline melt for the PVdF component at ∼169°C. All composites displayed a well-form …

Go to article

Reversible Addition-Fragmentation Chain-Transfer (Raft) Polymerization In Grafting Polymer Chains From Tio2 Nanoparticles, Joseph Lott Dec 2006

Reversible Addition-Fragmentation Chain-Transfer (Raft) Polymerization In Grafting Polymer Chains From Tio2 Nanoparticles, Joseph Lott

Theses

A phosphonate coupling molecule containing a vinyl double bond was synthesized and anchored onto the surface of TiO2 nanoparticles. Diffuse reflectance infra-red (DRIFT) spectroscopy confirmed the presence of the coupling molecule on the particulate surface while thermogravimetric analysis revealed the coupling molecule covered 28% of the surface. Methyl methacrylate was free radically polymerized through the immobilized vinyl bond on the surface in the presence of the reversible additionfragmentation chain-transfer (RAFT) agent 4-cyanopentanoic acid dithiobenzoate using 2,2'-azobisisobutylnitrile (AIBN) as an initiator. DRIFT measurements confirmed the presence of methacrylate groups on the surface. Differential scanning calorimetry detected a weak glass transition for …

Go to article

Law 26.190 - Electric Energy Law, El Senado Y Cámara De Diputados De La Nación Argentina Dec 2006

Law 26.190 - Electric Energy Law, El Senado Y Cámara De Diputados De La Nación Argentina

Latin American Energy Policies

This law declares a national interest in electricity generation from the use of renewable energy sources in Argentina. It calls for increased research on renewable energy technology development as well as an increase in the manufacture of equipment for this purpose. It sets the goal of having 8% of Argentina's national energy consumption derived from renewable energy sources within ten years of its enactment.

Go to article

Tass Mark Iv Photometric Survey Of The Northern Sky, Thomas Droege, Michael Richmond, Michael Sallman, Robert P. Creager Dec 2006

Tass Mark Iv Photometric Survey Of The Northern Sky, Thomas Droege, Michael Richmond, Michael Sallman, Robert P. Creager

Articles

The Amateur Sky Survey (TASS) is a loose confederation of amateur and professional astronomers. We describe the design and construction of our Mark IV systems, a set of wide-field telescopes with CCD cameras which take simultaneous images in the V and IC passbands. We explain our observational procedures and the pipeline which processes and reduces the images into lists of stellar positions and magnitudes. We have compiled a large database of measurements for stars in the northern celestial hemisphere with V -band magnitudes in the range 7 < V < 13. This paper describes data taken over the four-year period starting November, 2001. One of our results is a catalog of repeated measurements on the Johnson-Cousins system for over 4.3 million stars.

Go to article

Student Government Minutes, December 5, 2006, Taos Student Government Dec 2006

Student Government Minutes, December 5, 2006, Taos Student Government

Student Government, Taos Campus

Minutes for the December 5th, 2006 Student Government meeting.

Go to article

Multi-Variant Analysis Of Real-World Environmental Variables Affecting Image Fading On Outdoor Synthetic Inkjet Substrates, Elizabeth Kline Dec 2006

Multi-Variant Analysis Of Real-World Environmental Variables Affecting Image Fading On Outdoor Synthetic Inkjet Substrates, Elizabeth Kline

Theses

The permanence of large format, outdoor inkjet signs is a concern for many advertisers and companies creating signs that will be displayed for years or months in such an environment. The permanence industry has focused their research on using equipment to simulate these outdoor conditions the prints face to gauge their fading properties. This research took a more direct approach by placing the prints in an actual outdoor environment and tracking the rate of color change (∆Eab), and the environmental variables. A multiple regression analysis of the data was then used to create prediction models and to eliminate environmental variables …

Go to article

Internal Combustion Engine Cooling Strategies: Theory And Test, John Chastain Dec 2006

Internal Combustion Engine Cooling Strategies: Theory And Test, John Chastain

All Theses

Advanced internal combustion engine thermal management systems can enhance overall engine performance through the use of computer controlled cooling system actuators. Existing ground vehicle cooling systems generally have performance limitations due to the fixed behavior of the wax-based thermostat valve and crankshaft dependent operation of the coolant pump and radiator fan. Upgrading the traditional thermostat valve, water pump, and radiator fan with actuators permit real time computer control for improved temperature tracking and reduced power consumption. In this paper, the benefits associated with advanced automotive cooling systems are experimentally investigated. A 4.6L engine with a real-time data acquisition and control …

Go to article

First Prev Next Last