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

Digital Commons Network™

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

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1261 - 1290 of 92735

Full-Text Articles in Entire DC Network

Predictive Ability Of Ordinary Certificate Of Secondary Education Grades To Advanced Certificate Of Secondary Education: Evidence From Tanzania's Necta Results, Ulingeta O.L. Mbamba Dec 2008

Predictive Ability Of Ordinary Certificate Of Secondary Education Grades To Advanced Certificate Of Secondary Education: Evidence From Tanzania's Necta Results, Ulingeta O.L. Mbamba

Business Management Review

Normally, selection of students for higher education is based on previous performance. Whether or not previous performance is a good predictor varies for different examining bodies. This study evaluates the predictive ability of Tanzania ' s Ordinary Certificate of Secondary Education (OCSE) performance to Advanced Certificate of Secondary Education (ACSE) performance using linear regression and chi-square tests. By linking OCSE of 2003 and 2004 with ACSE of 2006 and 2007, respectively, research results indicate that the OCSE is a good predictor for ACSE. The predictive ability of OCSE improves as data are disaggregated based on whether or not students studied …

Go to article

Burnout And Auditor Work Behaviours In Tanzanian Public Accounting Firms, Judika King'ori Dec 2008

Burnout And Auditor Work Behaviours In Tanzanian Public Accounting Firms, Judika King'ori

Business Management Review

This study examined the effect of work stressors (time pressure, work ambiguity, work overload, and work conflict) and Burnout experienced by auditors working in Tanzanian audit firms, on organisational outcomes that are important to the effectiveness of the service offered by these firms. The work behaviours that were examined are Under-reporting of worked time (URT), Premature signing of audit steps in the audit programme without actually carrying out the required work (PMSO), and Turnover intentions (TI). The survey data was collected from a sample of forty (40) auditors at manager to assistant level, who are currently practising in various public …

Go to article

Iso 9000 Certification: Some Lessons From A Large Firm In Tanzania, Charity N. Mwakio, Elinami Minja Dec 2008

Iso 9000 Certification: Some Lessons From A Large Firm In Tanzania, Charity N. Mwakio, Elinami Minja

Business Management Review

We present some findings on the implementations and achievements of ISO 9000 standard certification at the Tanzania Cigarette Company (TCC). Among other things we examine the motivation behind adoption of the standard and attempt to measure the implemented changes in terms of quality management. Though positive social impact, improved business results and increased customer satisfaction were recorded in the period following ISO 9000 implementation, these results were not viewed as resulting from ISO 9000 quality standard but rather from privatisation and what transpired during the process of seeking ISO 9000 certification. The findings suggest that ISO 9000 certification does not …

Go to article

Business Constraints And Growth Potential Of Micro And Small Manufacturing Enterprises In Uganda, Esther Ishengoma, Robert Kappel Dec 2008

Business Constraints And Growth Potential Of Micro And Small Manufacturing Enterprises In Uganda, Esther Ishengoma, Robert Kappel

Business Management Review

Ugandan micro and small enterprises (MSEs) still perform poorly. Studies associating poor performance of manufacturers with lack of finance and low investment ignore micro enterprises. Those focusing on MSEs are either exploratory in nature or employ a descriptive analysis, which cannot show the extent to which business constraints explain the performance of MSEs. Thus, this paper tries to examine the extent to which the growth of MSEs is associated with business constraints while controlling for owners ' attributes and firms ' characteristics. The results reveal that MSEs ' growth potential is negatively associated with limited access to productive resources (finance …

Go to article

Illinois State University, One Hundred And Forty-Ninth Annual Commencement, December 13, 2009, Illinois State University Dec 2008

Illinois State University, One Hundred And Forty-Ninth Annual Commencement, December 13, 2009, Illinois State University

Commencement Programs

Normal, Illinois
Illinois State University
One Hundred and Forty-Ninth Annual Commencement
December 13, 2008

Go to article

Uncertainty Analysis Of Net Heat Release Rate Predictions In A Single Cylinder Pilot Compression Ignited Natural Gas Engine, Brandon T. Marvel Dec 2008

Uncertainty Analysis Of Net Heat Release Rate Predictions In A Single Cylinder Pilot Compression Ignited Natural Gas Engine, Brandon T. Marvel

Theses and Dissertations

A zero dimensional single zone model was developed to determine the crank resoled heat release rate at various injection timings (15°-60° BTDC) and the associated uncertainties from a pilot ignited natural gas engine. The uncertainty analysis examines the percentage contribution from various sources of error, including cylinder pressure measurements, intake manifold pressure measurements, and the impact of assumptions such as constant versus temperature dependent specific heat ratios. In particular, uncertainty percentage contributions and uncertainty magnification factors were used to quantify and compare the uncertainties in heat release rates using temperature dependent specific heat ratio correlations to constant specific heat ratio …

Go to article

Experiments And Modeling Of Fatigue And Fracture Of Aluminum Alloys, J Brian Jordon Dec 2008

Experiments And Modeling Of Fatigue And Fracture Of Aluminum Alloys, J Brian Jordon

Theses and Dissertations

In this work, understanding the microstructural effects of monotonic and cyclic failure of wrought 7075-T651 and cast A356 aluminum alloys were examined. In particular, the structure-property relations were quantified for the plasticity/damage model and two fatigue crack models. Several types of experiments were employed to adapt an internal state variable plasticity and damage model to the wrought alloy. The damage model was originally developed for cast alloys and thus, the model was modified to account for void nucleation, growth, and coalescence for a wrought alloy. In addition, fatigue experiments were employed to determine structure-property relations for the cast alloy. Based …

Go to article

Model-Based Design Of A Protection Scheme For Shipboard Power Systems, Yujie Zhang Dec 2008

Model-Based Design Of A Protection Scheme For Shipboard Power Systems, Yujie Zhang

Theses and Dissertations

A shipboard power system (SPS) should be stable and reliable in order to ensure that the ship has better fight-through capability and increased fault invulnerability. The protection system is designed to minimize the effects of faults in the SPS, which presents challenges, such as increased fault vulnerability and lack of an electrical ground in the system. If protection devices are not updated after power system reconfiguration, they may not protect the power system appropriately. Therefore the development of elaborate digital protection devices for the SPS is required. This thesis focuses on the model-based methodology for designing a protection scheme for …

Go to article

A Comparison Of Repeated Uniaxial Tension And Compression On Bone-Like Cells Over Fourteen Days, Nathaniel David Schultz Dec 2008

A Comparison Of Repeated Uniaxial Tension And Compression On Bone-Like Cells Over Fourteen Days, Nathaniel David Schultz

Theses and Dissertations

Litter is a possible source of Campylobacter colonization for broilers as well as contamination of crops when used as fertilizer. A survey of Arkansas broiler litter indicated that Campylobacter recovery rates were higher in pine shavings and rice hulls than sand. Two experiments utilized three types of litter, which were artificially contaminated with Campylobacter. After 24 hours no Campylobacter could be recovered from any sample. Campylobacter growth was also examined for used pine shaving litter in varying conditions: aerobic atmosphere, micro aerobic atmosphere (6% O2), and moisture content. Campylobacter was recovered for all treatments at the initial sampling, and by …

Go to article

Junior Recital, Mesia Austin, Chris Cassino, Max Watson, Jim Sadler, Ryan Goodwin Dec 2008

Junior Recital, Mesia Austin, Chris Cassino, Max Watson, Jim Sadler, Ryan Goodwin

Bailey School of Music Concert Programs

This recital is presented in partial fulfillment of requirements for the degree Bachelor of Music in Performance. Ms. Austin is a student of John Lawless.

Go to article

Senior Recital: Mike Ishmael, Trombone, Mike Ishmael, Sam Aumann, Robert Hays, Crystal Penland, Valerie Pool Dec 2008

Senior Recital: Mike Ishmael, Trombone, Mike Ishmael, Sam Aumann, Robert Hays, Crystal Penland, Valerie Pool

Bailey School of Music Concert Programs

This recital is presented in partial fulfillment of the requirements for the degree Bachelor of Music in Music Education. Mr. Ishmael is a student of Richard Brady.

Go to article

Capstone Lecture Recital: The Twelve Tone Music Of Anton Webern, Brett Carson Dec 2008

Capstone Lecture Recital: The Twelve Tone Music Of Anton Webern, Brett Carson

Bailey School of Music Concert Programs

This lecture recital is presented in partial fulfillment of requirements for the degree Bachelor of Arts in Music. Mr. Carson is a student of David Watkins.

Go to article

Senior Recital: Brandon Mcdaniel, Double Bass, Brandon Mcdaniel, Valerie Pool Dec 2008

Senior Recital: Brandon Mcdaniel, Double Bass, Brandon Mcdaniel, Valerie Pool

Bailey School of Music Concert Programs

This recital is presented in partial fulfillment of requirements for the degree Bachelor of Music in Music Education. Mr. McDaniel is a student of Douglas Sommer.

Go to article

Capstone Recital: Tunrade Schumann, Flute, Tunrade Schumann, Christy Wilson, Rob Schumann Dec 2008

Capstone Recital: Tunrade Schumann, Flute, Tunrade Schumann, Christy Wilson, Rob Schumann

Bailey School of Music Concert Programs

This recital is presented in partial fulfillment of requirements for the degree Bachelor of Arts in Music. Ms. Schumann is a student of Robert Cronin.

Go to article

Commencement Convocation Exercises - December 2008, Prairie View A&M University Dec 2008

Commencement Convocation Exercises - December 2008, Prairie View A&M University

Commencement and Convocation Exercises

No abstract provided.

Go to article

Semantic Construction With Provenance For Model Configurations In Scientific Workflows, Amritanshu Thakur Dec 2008

Semantic Construction With Provenance For Model Configurations In Scientific Workflows, Amritanshu Thakur

Theses and Dissertations

In the computationally intensive and diverse scientific environment of geosciences, substantial volumes of data are generated by specialized complex processing systems called ‘models’. These datasets contain little knowledge of their processing. Therefore a high degree of domain expertise is required to interpret, regenerate and tweak their production. Provenance is described as a general ability to record and evolve information related to the creation of data. We extend this idea further by proposing a mechanism by which a model’s setup and its domain semantics are integrated with the data it produces. This creates a scope for controlling model executions using their …

Go to article

Golden Jubilee Games Kenya 2008, The Ismaili Usa Dec 2008

Golden Jubilee Games Kenya 2008, The Ismaili Usa

Selected secondary sources and publications with substantial content about AKU

Golden Jubilee Games, Istitutional News, Islamic Civilizations, Real People Real Stories, Regional News

Go to article

Evaluation Of The Boys & Girls Clubs Of America Targeted Re-Entry Initiative: Final Report, William H. Barton, G. Roger Jarjoura, André B. Rosay Dec 2008

Evaluation Of The Boys & Girls Clubs Of America Targeted Re-Entry Initiative: Final Report, William H. Barton, G. Roger Jarjoura, André B. Rosay

Reports

In 2003 and early 2004 the Boys and Girls Clubs of America (BGCA) introduced Targeted Re-Entry (TR), a juvenile aftercare approach derived from the Intensive Aftercare Program (IAP) model (Altschuler & Armstrong) into four sites, partnering with state juvenile correctional facilities in Mobile, Alabama; Anchorage, Alaska; Benton, Little Rock, and North Little Rock, Arkansas; and Milwaukee and Wales, Wisconsin. The Targeted Re-entry approach builds closely upon the IAP model, with local Boys & Girls Clubs providing community leadership, case management functions, and close linkages with the correctional system. A key element in all four sites is the introduction of a …

Go to article

Dissolved Organic Matter In Wetland Soils And Streams Of Southeast Alaska: Source, Concentration, And Chemical Quality, Jason B. Fellman Dec 2008

Dissolved Organic Matter In Wetland Soils And Streams Of Southeast Alaska: Source, Concentration, And Chemical Quality, Jason B. Fellman

Faculty, Staff, and Students

Dissolved organic matter (DOM) transported from terrestrial to aquatic ecosystems is an important source of C, N and energy for the metabolism of aquatic heterotrophic bacteria. I examined the concentration and chemical quality of DOM exported from coastal temperate watersheds in southeast Alaska to determine if wetland soils are an important source of biodegradable dissolved organic carbon (BDOC) to aquatic ecosystems. I addressed this question through a combination of high resolution temporal and spatial field measurements in three watersheds near Juneau, Alaska by using a replicated experimental design that characterized DOM export from three different soil types (bog, forested wetland …

Go to article

Restructuring Aid To Fortis Bank And Fortis Bank Luxembourg, European Commission Dec 2008

Restructuring Aid To Fortis Bank And Fortis Bank Luxembourg, European Commission

Documents

No abstract provided.

Go to article

Revitalization And Initial Testing Of A Blowdown Supersonic Wind Tunnel, West Cardman Ratliff Dec 2008

Revitalization And Initial Testing Of A Blowdown Supersonic Wind Tunnel, West Cardman Ratliff

Theses and Dissertations

The Supersonic tunnel located in Patterson Labs at Mississippi State University has been thoroughly documented for future reference purposes. Data acquisition, physical components, shutdown devices, a control program, and the hydraulic system are all discussed in detail. Analysis is performed showing that the flow within the Mach 2 nozzle only reaches Mach 1.8 for a portion of the flow, but that this portion of the flow is relatively stable for a wide range of settling chamber pressures. It is concluded that the tunnel with the nozzle blocks used functions correctly.

Go to article

December Graduation Ceremony Dec 2008

December Graduation Ceremony

Law School Commencement / Hooding Programs, 1942-present

No abstract provided.

Go to article

Development Of A Geovisual Analytics Environment Using Parallel Coordinates With Applications To Tropical Cyclone Trend Analysis, Chad A. Steed Dec 2008

Development Of A Geovisual Analytics Environment Using Parallel Coordinates With Applications To Tropical Cyclone Trend Analysis, Chad A. Steed

Theses and Dissertations

A global transformation is being fueled by unprecedented growth in the quality, quantity, and number of different parameters in environmental data through the convergence of several technological advances in data collection and modeling. Although these data hold great potential for helping us understand many complex and, in some cases, life-threatening environmental processes, our ability to generate such data is far outpacing our ability to analyze it. In particular, conventional environmental data analysis tools are inadequate for coping with the size and complexity of these data. As a result, users are forced to reduce the problem in order to adapt to …

Go to article

Multi-Agent Systems For Reconfiguration Of Shipboard Integrated Power System Including Ac-Dc Zonal Distribution System, Qiuli Yu Dec 2008

Multi-Agent Systems For Reconfiguration Of Shipboard Integrated Power System Including Ac-Dc Zonal Distribution System, Qiuli Yu

Theses and Dissertations

Future all-electric warships with an integrated power system (IPS) are capable of unlocking large amounts of power dedicated to propulsion and redirecting this power for service loads, weapon loads, and other loads. The IPS for all-electric ships combines the power generation system, electric propulsion system, power distribution system, and power control and management system all together. The move to IPS design will significantly improve efficiency, effectiveness, and survivability. To meet the needs of the US Navy, enhancing survivability by reducing susceptibility to damage, a IPS prefers decentralized reconfiguration system is preferred for IPS instead of traditional reconfiguration techniques used for …

Go to article

Multi-Classifiers And Decision Fusion For Robust Statistical Pattern Recognition With Applications To Hyperspectral Classification, Saurabh Prasad Dec 2008

Multi-Classifiers And Decision Fusion For Robust Statistical Pattern Recognition With Applications To Hyperspectral Classification, Saurabh Prasad

Theses and Dissertations

In this dissertation, a multi-classifier, decision fusion framework is proposed for robust classification of high dimensional data in small-sample-size conditions. Such datasets present two key challenges. (1) The high dimensional feature spaces compromise the classifiers’ generalization ability in that the classifier tends to overit decision boundaries to the training data. This phenomenon is commonly known as the Hughes phenomenon in the pattern classification community. (2) The small-sample-size of the training data results in ill-conditioned estimates of its statistics. Most classifiers rely on accurate estimation of these statistics for modeling training data and labeling test data, and hence ill-conditioned statistical estimates …

Go to article

Optimizing The Size And Location Of Distributed Generators To Maximize The Grid Stability, Abhilash Reddy Masanna Gari Dec 2008

Optimizing The Size And Location Of Distributed Generators To Maximize The Grid Stability, Abhilash Reddy Masanna Gari

Theses and Dissertations

Distributed Generators (DGs) are being increasingly utilized in power system distribution networks to provide electric power at or near load centers. These are generally based on technologies like solar, wind and biomass and range from 10 kW to 50 MW. Research work carried out in this thesis relates to the optimal siting and sizing of DGs in order to maximize the system voltage stability and improve voltage profile. This has been formulated as an optimization problem and solved using LINGO software. Power flow equations have been embedded in the LINGO formulation, along with other operating constraints. The solution provides optimal …

Go to article

Intelligent Alternator Control Strategy Development For Hybrid Automotive Applications, Stephen Gordon Phillips Dec 2008

Intelligent Alternator Control Strategy Development For Hybrid Automotive Applications, Stephen Gordon Phillips

Theses and Dissertations

Stringent government mandates for the fuel economy and emissions of light-duty consumer vehicles have forced manufacturers to focus on improvements in these areas. Increased consumer pressure has also shifted the automobile market towards higher efficiency vehicles. This study investigates the use of intelligent engine peripheral control to improve fuel efficiency and reduce vehicle emissions. The conventional automotive alternator control strategy contributes to higher overall vehicle losses and increased fuel consumption through indiscriminate loading of the engine. The improved method focuses on the selective reduction of engine loading and the recapture of vehicle energy during braking using intelligent control of the …

Go to article

Sedimentation Solutions For The Port Of Pascagoula, Hunter Neal Johnson Dec 2008

Sedimentation Solutions For The Port Of Pascagoula, Hunter Neal Johnson

Theses and Dissertations

The purpose of this work, which is designed for the Port of Pascagoula, is to locate sedimentation problems, identify sediment characteristics, and devise a method to decrease the port’s dredging costs. In order to understand what sediment problems are typical of the Port of Pascagoula the characteristics that are associated with sediment transportation in the port’s harbors are examined. This examination consists of a field investigation followed by an extensive evaluation of the data. Once the characteristics that are unique to the harbors are identified, potential solutions are examined. These potential solutions are evaluated until a feasible and efficient plan …

Go to article

Technical And Economic Impacts Of Distributed Generators And Energy Storage Devices On The Electric Grid, Aarthi Asok Kumar Dec 2008

Technical And Economic Impacts Of Distributed Generators And Energy Storage Devices On The Electric Grid, Aarthi Asok Kumar

Theses and Dissertations

In recent years, Distributed Generators (DGs) and energy storage devices have gained more popularity due to growing energy and environmental concerns. Interconnection of DGs and storage devices in an electricity grid impacts its performance under steady state and transient conditions. This research aims at analyzing the impacts of distributed generators and energy storage devices on the transient stability of the grid. Battery and ultra-capacitor technologies have been taken as the two types of storage devices and their electrical characteristics have been modeled using Simulink. Impact of these devices has been analyzed by connecting them to the system by means of …

Go to article

Physically Motivated Internal State Variable Form Of A Higher Order Damage Model For Engineering Materials With Uncertainty, Kiran N. Solanki Dec 2008

Physically Motivated Internal State Variable Form Of A Higher Order Damage Model For Engineering Materials With Uncertainty, Kiran N. Solanki

Theses and Dissertations

any experiments demonstrate that isotropic ductile materials used in engineering applications develop anisotropic damage and shows significant variation in elongation to failure. This anisotropic damage is manifest by material microstructural heterogeneities and morphological changes during deformation. The variation in elongation to the failure could be attributed to the uncertainties in the material microstructure and loading conditions. To study this deformation induced anisotropy arising from the initial material heterogeneities, we first performed uncertainty analysis using current form on an internal state variable plasticity and isotropic damage model (Bammann, 1984; Horstemeyer, 2001) to quantify the effect due to variations in material microstructure …

Go to article

First Prev Next Last