Dissertations / Theses on the topic 'Thesis in engineering management'
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Garip, Omer. "Web-based Thesis Workflow Management System." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1588779226055449.
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JUNGÅKER, JONAS. "Monocular depth estimation for level assessment in an industrial waste management environment : A thesis within smart waste management." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-303107.
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With the transition to Industry 4.0, actors in many industries face challenges such as how to successfully implement technical solutions and retain competitiv eadvantages. In the smart waste management sector, many solutions have been presented in how to create effecient sensors but a practical way of comparing these solutions is non-existent. From research within Industrial Internet of Things (IIoT) and interviews with operators at Scania, we present a clear and effective way of comparing smart waste management sensors with regards to operational effectiveness. Along with this, we present a way to measure fill volume of garbage containers using monocular depth estimation and compare this to using ultrasonic sensors. Our findings show that depth estimation with deep convolutional neural networks is viable as long as environmental conditions can be controlled, although, we have also found that ultrasonic sensors outperform depth estimation in many metrics and is the desired way of measuring fill level of containers in many applications. Despite this, the results of this research show promise in that depth estimation can be used in conjunction with object recognition models, leading to the obsolescence of ultrasonic sensors in more complex applications.Med den tekniska omvandlingen till Industri 4.0, ledande aktörer i många branscher ställs inför utmaningar såsom hur de ska implementera tekniska lösningar och bibehålla konkurrenskraft. Inom området för smart avfallshantering har många tekniska lösningar presenterats som på ett effektivt sätt mäter soptunnenivåer men ett praktiskt sätt att jämföra dessa lösningar saknas. Från forskning inom Industrial Internet of Things (IIoT) och intervjuer med operatörer på Scania har vi tagit fram ett koncist och konkret sätt att jämföra dessa lösningar med avseende på operativ effektivitet. Tillsammans med detta har vi också tagit fram en djupestimeringsmodell som med hjälp av djupa konvolutionsneuronsnätverk kan mäta fyllnadsvolymen av soptunnor. Vi har visat i vår forskning att detta djupestimeringsnätverk är ett möjligt alternativ till andra sensorer. Vi jämför sedan detta system mot ultraljudssensorer och har funnit att ultraljudssensorerna presterar bättreän djupestimeringsmodellen på flera av de centrala mätvärdena. Trots detta så drog vi slutsatsen att vår metod att mäta fyllnadsvolym av soptunnor med hjälp av djupestimering kan användas tillsammans med objektigenkänning i mer komplexa applikationer för att undvika användandet av enklare sensorer, så som ultraljud.
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Zheng, Man. "Management of an intelligent argumentation network for a web-based collaborative engineering design environment." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/Zheng_09007dcc803e416f.pdf.
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Thesis (M.S.)--University of Missouri--Rolla, 2007.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 22, 2008) Includes bibliographical references (p. 33-35).
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Qandour, Amro. "Application framework for wireless sensor networks [thesis]." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2012. https://ro.ecu.edu.au/theses/472.
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Wireless Sensor Networks (WSNs) are based on innovative technologies that had revolutionized the methods in which we interact with the environment; i.e., through sensing the physical (e.g., fire motion, contact) and chemical (e.g., molecular concentration) properties of the natural surroundings. The hardware in which utilized by WSNs is rapidly evolving into sophisticated platforms that seamlessly integrate with different vendors and protocols (plug-n-play). In this thesis, we propose a WSN framework which provides assistance with monitoring environmental conditions; we focus on three main applications which include: a. Air-quality monitoring, b. Gas-leak detection, and c. Fire sensing. The framework involves four specifications: 1. Over the air programming (OTAP), 2. Network interconnections, 3. Sensors manageability, and 4. Alarm signaling. Their aim is to enhance the internetwork relations between the WSNs and the outside-world (i.e., main users, clients, or audience); by creating a medium in which devices efficiently communicate, independent of location or infrastructure (e.g., Internet), in order to exchange data among networked-objects and their users. Therefore, we propose a WSN-over-IP architecture which provides several renowned services of the Internet; the major functionalities include: live-data streaming (real-time), e-mailing, cloud storage (external servers), and network technologies (e.g., LAN or WLAN). WSNs themselves operate independently of the Internet; i.e., their operation involve unique protocols and specific hardware requirements which are incompatible with common network platforms (e.g., within home network infrastructure). Hybrid technologies are those which support multiple data-communication protocols within a single device; their main capabilities involve seamless integration and interoperability of different hardware vendors. We propose an overall architecture based on hybrid communication technology in which data is transmitted using three types of protocols: 802.11 (Wi-Fi), 802.15.4 and Digimesh (WSN).
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Berzin, Oleg Daryoush Afshin Samimi. "Mobility management architecture and modeling for label switched networks (mobility label based network) a thesis /." Philadelphia, Pa. : Drexel University, 2010. http://hdl.handle.net/1860/3217.
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Mollentze, Frederik Jacobus. "Asset management auditing the roadmap to asset management excellence /." Diss., Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-01242006-124600.
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Watkins, Johannes Andria. "A structured systems approach to model conceptualisation an executive management perspective /." Pretoria : [s.n.], 2000. http://upetd.up.ac.za/thesis/available/etd-07212006-120145/.
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Vulli, Srinivasa Shivakar. "Individual-based artificial ecosystems for design and optimization." Diss., Rolla, Mo. : University of Missouri--Rolla [sic] [Missouri University of Science and Technology], 2008. http://scholarsmine.mst.edu/thesis/pdf/Vulli_09007dcc804c5b3b.pdf.
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Thesis (M.S.)--Missouri University of Science and Technology, 2008.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 18, 2008) Degree granted by Missouri University of Science and Technology, formerly known as University of Missouri-Rolla. Includes bibliographical references (p. 67-73).
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Roberts, Clifton L. "The examination of the current risk-control management system at Malt-O-Meal Company located in Northfield, Minnesota." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998robertsc.pdf.
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Ombete, Kenneth. "Preventing chemical product failure." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Ombete_09007dcc80706a6e.pdf.
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Thesis (M.S.)--Missouri University of Science and Technology, 2009.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 17, 2009) Includes bibliographical references (p. 27-30).
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Strasheim, Jacobus Alexander van Breda. "A relation-based approach to Engineering Management Systems." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/1328.
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Thesis (PhD (Civil Engineering))--University of Stellenbosch, 2007.The primary goal of this thesis is to indicate how systems theory and engineering process modelling can be applied to provide models for consulting engineering service business enterprises. The typical management systems used for these businesses are investigated to determine the application of systems and process models. The motivation for this study is based on the fact that integrated management systems for consulting engineering practices are presently based on selective business analysis and process modelling that has evolved over time, as reported in a survey and study by Smit [110]. Furthermore, current engineering management systems are simply computer implementations of management procedures based on techniques that were developed to solve problems in the absence of the computational capabilities of the modern computer. To rectify this, a fundamental approach to analyse the business and management functions using systems theory and engineering process modelling techniques is required, which has not been attempted to date. This study develops and demonstrates the application of fundamental analysis in consulting engineering enterprise management and reviews advantages that can be obtained from using this approach. It is shown that the mathematical Algebra of Relations and associated Graph Theory provide the mathematical basis on which management problems can be treated systematically. Since these fields of mathematics are well developed and very broad, the essential parts of the theories are identified. Thereupon, the application of the very abstract mathematical concepts to two important and typical engineering management problems are developed, which represents the core contribution of the dissertation. The study is developed and presented in two parts and an addendum: 1. The first part provides an overview of the necessary mathematical theory required to support development of business models. 2. Management systems theory and relation- and graph theory-based engineering process modelling techniques are applied in this part to build generic enterprise models and data processing models. These models provide inputs for the management processes of professional service business enterprises. The outcome of the modelling and analysis is a set of database models with reporting functionality, to be used in the management process. A demonstration of technology available for development of the models and techniques, described in the previous part, is undertaken in this part. Generic implementations of database models and reporting techniques for systems which deal with management data in a consulting engineering business are developed, described and demonstrated. 3. In the addendum to the study, typical models and system functionality needed to support the management functions of the consulting engineering service business are identified. These management functions include: • Business strategy and long term planning • Marketing and promotion • Finance, including bookkeeping and auditing • Personnel • Facilities management and document management • Logistics, i.e., management of resources required for the business to operate • Knowledge management • Production management, i.e., management of the execution of project work • Administration • Risk management Production management can use the engineering process model approach, modelling the management of tasks, persons, datasets and tools as these are applied to the consulting engineering business. Sample subsystems to support selected management functions are identified and analysed. The integration of these systems with commercially available systems to support accounting and management reporting can follow from this analysis. The study contributes to the body of knowledge in the field of engineering management by providing insights into the application of a specific branch of mathematics to provide fundamental solutions to engineering management problems. It also shows how these solutions are mapped to the computer, and describes available information techniques and technology to support the mapping. The outcome is a document setting out the theory required to develop robust enterprise management systems, the development and demonstration of technology required to do this and, as an addendum, a high level specification of business and management system functionality required for the professional engineering service business.
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Johnson, Jeremy Ryan. "Fault propagation timing analysis to aid in the selection of sensors for health management systems." Diss., Rolla, Mo. : University of Missouri--Rolla i.e. [Missouri University of Science and Technology], 2008. http://scholarsmine.mst.edu/thesis/pdf/Johnson_09007dcc804bcda7.pdf.
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Thesis (M.S.)--Missouri University of Science and Technology, 2008.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 19, 2008) Degree granted by Missouri University of Science and Technology, formerly known as University of Missouri--Rolla. Includes bibliographical references (p. 39-41).
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Kruger, Theunis Johannes. "A generic framework for continuous energy management at cryogenic air separation plants." Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-05272005-165835/.
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Jooste, J. L. (Johannes Lodewikus). "A performance management model for physical asset management." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53286.
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Thesis (MScEng)--University of Stellenbosch, 2003.ENGLISH ABSTRACT: Two fundamental aspects in modem business success are performance management and physical asset management. The current problem in the asset management environment is the lack of structured performance management, which is required to effectively control and enhance the dynamics of the asset and its life cycle. The result is ineffective assets with high life cycle costs, which will consequently influence the bottom line and return on investment, negatively. An Asset _eerformance Management Model (APM2 , pronounced A-P-M square) was developed. A sound theoretical foundation together with the experience of a leading asset management consultant resulted in the realization of a model that (i) gives a balanced view of asset performance, (ii) link asset performance to strategic business objectives, (iii) facilitates decision-making and problem solving, and (iv) enhances asset control and continuous improvement. The APM2 was developed by rese~ching and integrating five building blocks, which encompass the model requirements. The APM2 consists of two distinct components, namely: • the APM Reference Structure (APMRS), and • a range of APM Dockets. The APMRS is a basic structure that integrates the various building blocks into a framework for providing guidance and control, giving perspective on the entire model and explaining the high-level content of the model. It consists of five levels, each with a distinct focus: • Levell: Enterprise • Level2: Factory • Level3: Process Unit • Level4: Aggregate • Level5: Component The APM Dockets are a subset of the APMRS, where each level has a docket. These dockets are executable, unit-specific procedures, guiding and leading stakeholders towards improved asset performance. Also each of the five levels consists of six similar and inter-related elements. These elements are the foundation for each docket: lement 1: Stakeholders Element 2: Objectives Element 3: Measures Element 4: External Monitor & Targets Element 5: Responsibilities & Decision-Making Element 6: Control & Continuous Improvement Element 7 represents the link to the next level in the APM Reference Structure. • • • • • • Conclusively the APM2,s simplicity and understandability is realized through the APM Reference Structure, while the range of APM Dockets contribute to the practicality objective. The model has a strong theoretical foundation, but at the same time is generic, to be used in a wide range of industries. A leading asset management consultant plans to integrate the APM2 into their asset management program based on the thesis documentation. This application will test and validate the APM2 in practice. It is further recommended that an asset management program, with the associated APM2 , be used in conjunction with the Theory of Constraints and Total Productive Maintenance, because of obvious relationships. Further research is also suggested in relation with some of the experimental asset life cycle phases as well as certain financial considerations.
AFRIKAANSE OPSOMMING: Twee fundamentele aspekte in hedendaagse besigheidsukses is prestasiebestuur and fisiese batebestuur. Die huidige probleem binne die batebestuursomgewing is die gebrek aan gestruktureerde prestasiebestuur, wat 'n vereiste is vir effektiewe beheer en verbeterings rondom die bate en sy lewensiklus. Die resultaat is oneffektiewe bates met hoë lewensikluskoste wat gevolglik wins en beleggingsopbrengs negatief beïnvloed. 'n Prestasiebestuur Model vir Bates (APM2, uitgespreek as A-P-M square) is ontwikkel. 'n Deeglike teoretiese fondasie tesame metdie ondervinding van vooraanstaande raadgewende batebestuurders, het die realisering van 'n model tot gevolg gehad, wat (i) bateprestasie gebalanseerd voorstel, (ii) bateprestasie met strategiese doelstellings verbind, (iii) besluitneming and probleemoplossing fasiliteer, en (iv) batekontrole en voortdurende verbetering bevorder. Die APM2 is ontwikkel deur middel van die identifisering en integrasie van vyf boustene wat die vereistes vir die modelomvat. Die APM2 bestaan onderskeidelik uit twee komponente, naamlik: • die APM Verwysingstruktuur (APMRS), en • 'n reeks APM Vouers. Die APMRS is 'n basiese struktuur wat die verskillende boustene binne 'n raamwerk integreer en sodoende leiding en beheer fasiliteer, die model as geheel in perspektief stel en die modelinhoud op hoë vlak verduidelik. Dit bestaan uit vyf vlakke, elk met 'n spesifieke fokus: • Vlak 1: Onderneming • Vlak2: Fabriek • Vlak 3: Proseseenheid • Vlak 4: Aggregaat • Vlak 5: Komponent Die APM Vouers is 'n subdeel van die APMRS, waar elke vlak 'n vouer het. Hierdie vouers is uitvoerbare, eenheid-spesifieke prosedures wat deelhebbers lei na beter bateprestasie. Ook bestaan elkeen van die vyf vlakke uit ses soortgelyke en inter-afhanklike elemente. Hierdie elemente is die fondasie vir elk van die vouers: • Element 1: Deelhebbers • Element 2: Doelwitte • Element 3: Metings • Element 4: Eksterne Monitering & Mikpunte • Element 5: Verantwoordelikhede & Besluitneming • Element 6: Kontrole & Voortdurende Verbetering • Element 7 stel die verbinding met die volgende vlak in die APM Verwysingstruktuur voor. Gevolglik word die eenvoud en verstaanbaarheid van die APM2 gerealiseer deur die APM Verwysingstruktuur, terwyl die reeks APM Vouers bydra tot die praktiese doelwit. Die model het 'n sterk teoretiese grondslag, maar terselfdertyd is dit generies, sodat dit in 'n wye spektrum van industrieë gebruik kan word. Gebaseer op die tesis dokumentasie beplan vooraanstaande raadgewende batebestuurders om die APM2 te integreer met hul batsbestuursprogram. Hierdie toepassing sal sodoende die APM2 in die praktyk toets en bekragtig. Dit word verder aanbeveel dat 'n batebestuursprogram, met die geassosieerde APM2, tesame met die Theory of Constraints en Total Productive Maintenance gebruik word, as gevolg van voor die hand liggende verwantskappe. Verdere navorsing word ook voorgestel in verband met die eksperimentele fases binne die batelewensiklus, asook rakende sekere finansiële oorwegings.
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Khan, Arsalan. "Management and Leadership Style: Is Style Influenced by Engineering Education?" TopSCHOLAR®, 2017. http://digitalcommons.wku.edu/theses/1976.
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Leadership Development Programs (LDPs) programs are employed by firms globally in different multiple manners that are aimed at accelerating the development and growth of highly capable candidates. Among these candidates, depending on the particular LDP, may be those possess engineering skills typically afforded through engineering education as measured by completion of an engineering degree. Infrastructure reductions might be afforded corporations if multiple LDPs could be supplanted with one program such as an Engineering Leadership Development Program. In practice, however, economic constraints limited the total sample population of this category to 67 (48 with engineering degrees and 15 without). Employing SPSS Sample Power 3, based on the pilot testing for CPMs, 113 subjects per group (with and without engineering degrees - totaling 226) would be required to yield a power of 80%, and of the 350 received completed surveys received, CPMs meeting the desired criteria accounted for only 63 (18%) of the total number of rated organizational leaders. Consequently, while all testing included the CPM group, the scope was expanded to also include managers with and without PMI certifications as well as managers with and without engineering degrees. The first research hypothesis was Ho: There is no affiliation amongst Transformational Leadership (TL) and engineering education. Thus, the author’s aim is to determine the role, if any, that engineering education plays in perceived leadership style as exhibited by CPMs and non-CPMs holding engineering degrees (e.g. EE, ME, IE, etc.) versus the same without engineering degrees.
A secondary goal is to determine, within the management category, which style (transformational or transactional) serves as the dominant style of leadership. With this in mind, the independent variable, CPMs with and without engineering degrees, was operationally defined consistent with this Project.
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Licorish, Sherlock Anthony. "Tool support for social risk mitigation in agile projects a thesis submitted in partial fulfilment of the degree of Master of Computer and Information Sciences (MCIS) at the Auckland University of Technology, Auckland, June 2007 /." Click here to access this resource online, 2007. http://repositoryaut.lconz.ac.nz/theses/1354/.
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Thesis (MCIS - Computer and Information Sciences) -- AUT University, 2007.Primary supervisor: Anne Philpott. Co-supervisor: Professor Stephen MacDonell. Includes bibliographical references. Also held in print (x, 147 leaves : ill. ; 30 cm.) in City Campus Theses Collection (T 005.12 LIC)
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Goswami, Mohit. "Application of product family design for engineered systems in changing market space." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Goswami_09007dcc804feafa.pdf.
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Thesis (M.S.)--Missouri University of Science and Technology, 2008.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 19, 2008) Includes bibliographical references (p. 33-35).
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Day, Rachel Marie. "Verifying module heuristics for large scale products." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Day_09007dcc8063deea.pdf.
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Thesis (M.S.)--Missouri University of Science and Technology, 2009.Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 27, 2009) Includes bibliographical references.
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Van, Greunen Larey-Marié. "Selection of air pollution control technologies for power plants, gasification and refining processes." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-04112007-111900.
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Volkman, Sarah. "Quickbird satellite imagery for riparian management : characterizing riparian filter strips and detecting concentrated flow in an agricultural watershed /." Available online. Click here, 2005. http://sunshine.lib.mtu.edu/ETD/THESIS/volkmans/thesis.pdf.
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Stone, Jasper Daniël. "The development of a comprehensive, practical and integrated management method with specific reference to the South African mining industry." Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-04082009-202730/.
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Hasegawa, Marnie Tardieu. "Systems engineering design for operations directorate administrative information system." Master's thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-10242009-020024/.
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Boezaart, T. C. (Theodoor Christiaan). "A case study in project management." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/49740.
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Thesis (MEng)--University of Stellenbosch, 2003.ENGLISH ABSTRACT: Project Management has already moved beyond the realms of an "orderwinning"- criteria to a "necessary-to-survive"-criteria. Increasingly people are drawn into project management without the correct qualifications or sufficient education in project management, especially in the area of project risk management. This project details the development of a case study in project management to facilitate this educational infilling in the services industry. This case study is based on a fictitious SPR project at an IT development company. The developed case study is an alternative project for the post-graduate course in Project Management at the University of Stellenbosch's Department of Industrial Engineering. Additionally, a tutorial in Microsoft" Project 2000® was also developed as supplementary material to this course.
AFRIKAANSE OPSOMMING: Projek bestuur het alreeds verby die stadium beweeg waar dit gesien word as 'n voorsprong bo ander mededingende maatskappye. AI meer word mense in die dienste sektor met onvoldoende opleiding in projekbestuur, veral in die area van projek risiko bestuur, daarby betrek. Hierdie projek bespreek die ontwikkeling van 'n gevallestudie om hierdie leemte aan te spreek, en is gebaseer op 'n besigheidsproses verbeteringsprojek by 'n IT ontwikkelingsmaatskappy. Die ontwikkelde gevallestudie dien as 'n alternatiewe projek vir die nagraadse kursus in Projekbestuur wat aangebied word deur die Universiteit van Stellenbosch se Departement Bedryfsingenieurswese. 'n Addisionele tutoriaal in Microsoft" Project 2000® is ook ontwikkel om hierdie opleidingsproses te fasiliteer.
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Liaw, Judy-Audrey-Chui-Yik. "DEFINITION AND REPRESENTATION OF REQUIREMENT ENGINEERING / MANAGEMENT: A PROCESS-ORIENTED APPROACH." MSSTATE, 2002. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04092002-095054/.
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Requirements are important in software development, product development, projects, processes, and systems. However, a review of the requirements literature indicates several problems. First, there is confusion between the terms ?requirements engineering? and ?requirements management.? Similarities and/or differences between the two terms are resolved through a literature review; resulting in comprehensive definitions of each term. Second, current literature recognizes the importance of requirements but offers few methodologies or solutions for defining and managing requirements. Hence, a flexible methodology or framework is provided for defining and managing requirements. Third, requirements methodologies are represented in various ways, each with their respective strengths and weaknesses. A tabular view and hybrid graphical view for representing the requirements process are provided.
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Swain, Allyson. "Modeling the Groundwater Basin in the Northern Cities Management Area." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2330.
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A model was developed to simulate the groundwater of 8,300 acres of the Northern Cities Management Area (NCMA), which encompasses the northern portion of the Arroyo Grande Watershed and a small subset of the Santa Maria Valley Groundwater Basin. This watershed and groundwater basin is located on the coast and contains Oceano and the Cities of Arroyo Grande, Grover Beach, Pismo Beach. Groundwater in the NCMA is used heavily for agricultural irrigation in the southern portion and municipal applications in the northern portion. Up to 18 of these municipal wells and over 50 irrigation wells are drawing groundwater at any time. Due to the critical nature of both uses, and location on the coastline, both supply and quality is a significant concern. The objective of this research was to improve an existing groundwater model with a longer model duration, a more detailed and discretized recharge estimation, and incorporation of addition municipal well data. Some data was preprocessed in ArcMap. Groundwater modeling was accomplished with Aquaveo GMS using MODFLOW-NWT upstream weighting package (UPW). Elevation, hydrologic soil conditions, stream gauge heights and flows, recharge rates, fault locations, well locations and pumping rates, and transient head boundaries were created via coverages in GMS and mapped to MODFLOW. The model was calibrated using Parameter Estimation (PEST) with Singular Value Decomposition-Assist (SVD-Assist) to observation data in six select monitoring wells and fifteen Sentry wells. The model showed outflow from the domain to the ocean with groundwater flows shifting to parallel the coast following dry periods and significant simulated drawdown from one particular municipal well. These trends can provide water purveyors in the area with additional information on groundwater trends and effects of pumping rates on formation drawdown.
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Groenewald, Abraham. "Thermal management of casting moulds using heat pipes." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52563.
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Thesis (MScEng)--University of Stellenbosch, 2001.ENGLISH ABSTRACT: The use of cylindrical heat pipes for the thermal control and management of casting moulds have been investigated. Heat pipes are tubes that possess a high capability to transfer heat, up to a thousand times or more than an equivalent solid copper rod. The heat pipes used in this thesis are copper tubed, use water as working fluid and have (phosphor-bronze) screen mesh wicks. Experiments relating to practical casting situations in industry were designed and performed, using pure tin as the casting metal. Three cases pertaining to the requirements of an industrial casting mould were considered. The first case considered heating of a mould through heat pipes, in order to keep it at a specific temperature. The second case relates to the situation where metal is cast around a core, and the core is cooled by a heat pipe connected to a heat sink. The heat sink in this case was an air cooled fin. The third case is representative of the situation where molten metal is cast into an external mould and the mould heats up due to the energy flowing in from the casting. In order to cool the mould, heat pipes are used to transport the heat to a water cooled heat sink. These three cases were modeled theoretically, which included using a standard finite element method (FEM) computer package, NASTRAN 2.0 for Windows. For the FEM simulations, the heat pipes are modeled using an equivalent conductivity approach. Theoretical and experimental results are to within ± 30% of each other, but better results could possibly be achieved using a better finite element model for the heat pipes. A simulation case was performed to compare the use of an uncooled mould with a heat pipe cooled mould, and a two and a half time improvement of production rate was achieved. In support of the above mentioned casting related experiments, experiments have also been performed on a specially designed cylindrical heat pipe to determine the evaporator and condenser heat transfer coefficients. It was found that the heat pipe can transfer more than 500 W for vertical operation and around 160 W for horizontal operation. The heat transfer coefficients of the condenser and evaporator ends are in the order of 1800 to 2000 W/mK. Experiments were also performed on the fins used as the heat sink in the experiment where core cooling is investigated, to compare the experimentally determined fin heat transfer coefficient with the theoretically predicted coefficient. A theoretical study was also performed for an inclined ammonia thermosyphon in order to compare the theory to a set of previously determined experimental results. The theory produced accurate results for vertical operation, but it is clearly limited for inclined operation, and can lead to inaccurate results. A special correlation factor, the splashing factor, was defined to analyse the deviation between the theoretical and experimental results. The splashing factor can be used in two ways. Firstly, it can be used as a design correction factor and secondly, it can be processed to indicate which operational variables have the highest impact on the discrepancy between the theory and the experimental data. It is recommended that further research into the use of heat pipes for the thermal control of moulds be considered, based on the results achieved in this thesis. Furthermore, a finite element model for a heat pipe can also be considered. It is also recommended that the use of the splashing factor be considered for the analysis of thermosyphons.
AFRIKAANSE OPSOMMING: Die moontlikheid om hittepype te gebruik in die termiese beheer van gietvorms is ondersoek. Hittepype is buise wat oor 'n baie goeie warmte-oordragsvermoë beskik, 'n duisend maal of beter as 'n ekwivalente soliede koper staaf. Die hittepype wat gebruik is in die tesis is gesëelde koperbuise, wat water gebruik as werksvloeier en ook 'n (fosfor-brons) sifdraad pitmateriaal bevat. Eksperimente wat verband hou met industriële gietprosesse is ontwerp en uitgevoer. Suiwer tin is gebruik as die gietmateriaal. Drie giet gevalle is ondersoek. Die eerste geval het die verhitting van 'n gietvorm met hittepype behels. Die tweede geval hou verband met die situasie waar metaalom 'n kern gegiet word en die kern word afgekoel deur middle van 'n hittepyp wat gekoppel is aan 'n hitteput, wat in die geval 'n lugverkoelde fin is. Die derde geval hou verband met die situasie waar gesmelte metal gegiet word in 'n eksterne gietvorm en die gietvorm verhit as gevolg van die energie wat vanaf die gietstuk invloei. Hierdie drie gevalle is teoreties gemodelleer, wat die gebruik van 'n eindige element analise (EEA) rekenaarpakket insluit (NASTRAN 2.0 for Windows). Tydens die EEA simulasies is die hittepype gemodelleer met behulp van die ekwivalente geleidingskoëffisiënt metode. Teoretiese en eksperimentele resultate is binne .± 30% van mekaar. Beter resultate kan moontlik verkry word as 'n verbeterde eindige element model vir die hittepype ontwikkel kan word. 'n Simulasie geval is uitgevoer om die produksietempo van 'n onverkoelde gietvorm te vergelyk met 'n hittepyp-verkoelde gietvorm, en 'n verbetering van twee en 'n half maal is gevind vir die verkoelde gietvorm. Ter ondersteuning van die bogenoemde gietverwante eksperimente en teoretiese modelle, is eksperimente ook op 'n spesiaalontwerpte silindriese hittepyp uitgevoer om die kondeser en verdamper hitte-oordragskoëffisiënte te bepaal. Daar is bevind dat die hittepyp meer as 500 W kan oordra tydens vertikale gebruik en ongeveer 160W tydens horisontale gebruik. Die hitte-oordragskoëffisiënte vir die kondenser en verdamper is in die orde van 1800 tot 2000 W/m2K. Eksperimente is ook uitgevoer op die finne wat gebruik is as die hitteput in die geval waar die kern verkoeling ondersoek is, om die eksperimenteel bepaalde fin hitteoordragskoëffisiënte te vergelyk met die teoretiese koëffisiënt. 'n Teoretiese studie is ook uitgevoer vir 'n skuins termoheuwel sodat die teorie vergelyk kan word met In stel bestaande resultate. Die teorie gee akkurate voorspellings vir vertikale gebruik, maar is duidelik beperk en kan lei tot onakkurate resultate vir skuins gebruik. 'n Spesiale faktor (splashing factor) is gedefiniëer om die verskil tussen die teoretiese en eksperimentele resultate mee te analiseer. Hierdie factor kan op twee maniere gebruik word. Eerstens kan dit gebruik word as 'n korreksiefaktor en tweedens kan dit geprosesseer word om aan te dui watter veranderlikes die hoogste impak het op die verskil in eksperimentele en teoretiese resultate. Dit word aanbeveel dat verdere navorsing gedoen word op die gebruik van hittepype vir die termiese beheer van gietvorms, gebasseer op die resultate wat verkry is uit die tesis. Verder kan 'n eindige element model vir 'n hittepyp ontwikkel word. Dit word ook aanbeveel dat die "splashing factor" oorweeg word in die analise van termohewels.
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Theron, Louis Francois. "Personnel Allocation for Engineering Projects." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86295.
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Thesis (MEng)--Stellenbosch University, 2014.ENGLISH ABSTRACT: The logical allocation of tasks in engineering offices currently relies heavily on the experience and intuition of project managers. In large scale projects the complexity of the task allocation procedure exceeds the capacity of human intuition, and a systematic technique is required to aid project managers in assigning tasks to individuals. In this project such a systematic technique is modelled and implemented using the Java programming language. An equation was developed to calculate an individual’s workload, and used in conjunction with other criteria to intelligently and systematically select an optimal individual to complete engineering tasks. The software solution is network-based, and also aims to aid project managers in various managerial duties.
AFRIKAANSE OPSOMMING: Die logiese toekenning van ingenieurstake steun tans swaar op die ervaring en aanvoeling van projek bestuurders. In grootskaalse projekte is die kompleksiteit van die taak toekenningsproses veel groter as die kapasiteit van menslike intuïsie. Dus word ‘n sistematiese proses wat projek-bestuurders kan help met die toeken van take aan individue vereis. In hierdie projek is so 'n sistematiese tegniek ontwikkel en geïmplementeer met behulp van die Java-programmeringstaal. 'n Vergelyking is ontwikkel om 'n individu se werklading te bereken en is in samewerking met ander kriteria gebruik om take intelligent en sistematies toe te ken. Die sagteware is network en databasis-gebaseerd en kan ook gebruik word om projek-bestuurders te help met verskeie bestuurspligte.
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Martelli, Edmund R. "Intricacies of Professional Certifications for Quality Management (QM)." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/180.
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The modern manufacturing marketplace is extremely complex and constantly changing. Career professionals often seek job placement, career advancement, and continuing education through professional certifications. Professional certifications in the United States (U.S.) have been evolving since 1911. In the 1950s, engineering groups established professional certifications and licenses. In the 1980s, administration of accreditation of certification programs proliferated, and by the 1990s, many government and professional organizations sought to standardize procedures for the industry. Currently, professional certifications are available for virtually every profession and issued by multitudes of organizations.
Quality management (QM) encompasses an extensive combination ofprofessional abilities. Providers of professional certifications for quality management (QM) related occupations have increased as the demand for specialized employees increased. Certification can make professionals invaluable to their professions and offer substantial compensation. Return on the investment of personal development varies and requires consideration. Some non-accredited certification providers attempt to satisfy demand without conforming to consensual standards. Considering the accumulation of diverse sources professional certifications is subjective and industrial managers may consider them unnecessary, redundant of formal educations, or simply ineffective.
The dispute as to how certifications arr advantageous for what industries and individuals requires continual review. This investigation attempted to identify the individual career advantages, enterprise expectations, and the range of certification programs for quality management (QM).
The design of research used was a mixed-method approach to scientific inquiry. Participants from industrial professionals and certification providers participated in an online survey designed to identify certification parameters and perceptions.
Survey responses were statistically analyzed using a variety of descriptive and inferential techniques. The techniques included measures of agreement, central tendency, and dispersion combined with open-ended responses to deductively and inductively formulate, analyze, and interpret a referenced conclusion.
The results indicated essential parameters of professional certifications including what certifications existed, how they are implemented, acquired value ranges, perceived attributes and effectiveness, and a comparison of experienced and certified professionals.
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Basil, Daniel L. "A systems engineering approach to the design of a COTS management system." Master's thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-12162009-020103/.
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Yoon, Suyoung. "Power Management in Wireless Sensor Networks." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-01232007-222425/.
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One of the unique characteristics of wireless sensor networks (WSNs) is that sensor nodes have very constrained resources. Typical sensor nodes have lower computing power, communication bandwidth, and smaller memory than other wireless devices, and operate on limited capacity batteries. Hence power efficiency is very important in WSNs because power failure of some sensor nodes may lead to total network failure. In many cases the WSNs have to operate in harsh environments without human intervention for expended period time. Thus, much research on reducing or minimizing the power consumption, and thereby increasing the network lifetime, has been performed at each layer of the network layers. In this dissertation we approach three important issues related power management in WSNs: routing, time synchronization, and medium access control (MAC). We first discuss the effect of selecting routing protocols on the lifetime of the WSNs. The maximum and minimum bounds of the lifetime with respect to the routing protocols are derived. The routing protocols corresponding to the bounds are also presented. The simulation results show that the choice of the routing protocol has very little impact on the lifetime of the network and that simple routing protocols such as shortest path routing perform very close to the the maximum bound of the lifetime of the network. Next, we propose a simple and accurate time synchronization protocol that can be used a a fundamental component of other synchronization-based protocols in WSNs. Analytical bounds on the synchronization errors of proposed protocol are discussed. The implementation results on Mica2 and Telos motes show that proposed time synchronization protocol outperforms existing ones in terms of the precision and required resources. Finally, we model the power consumption of WSN MAC protocols. We derive analytically the power consumption of well known MAC protocols for WSNs, and analyze and compare their performance. We validate the models by measuring the power consumption on Mica 2 motes and comparing those measured power consumption with the analytical results.
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Grasso, Barton. "Benchmarking the Management of Construction Programs." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-03222007-001859/.
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The management of large capital improvement construction programs involves the efforts of both internal staff and external service providers. An understanding of how construction programs are managed, either through internal or external staff, is essential in tracking future trends and determining improvements and best practices in the management process. To address this need a survey was developed by a focus group of industry professionals. The survey was distributed to the membership of a number of professional organizations that represented owners within the construction industry. The survey attempted to determine both the current status of managing a construction program throughout a broad range of demographic characteristics (including the definition of program management) and the hiring of an external program manager. The survey and subsequent analysis that focused on the management of a construction program examined the following key points: role of a program manager, internal capabilities, outsourcing, sourcing strategy, and management costs. The survey and subsequent analysis that focused on hiring an external program manager examined: program management fees, type of firms used in managing a construction program, factors considered when hiring a program manager, and organizational structure. The results of the survey have also been segregated by public and private organizations to denote any differences in the management of public and private construction programs. A key contribution of this research was determining the percentage of outsourcing within each phase of the construction process and the number of service providers considered in the selection process. Also, a multifaceted definition of program management was developed from the research for use in clarifying the concept of program management within construction.
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Dorn, Jason Liam. "Evolutionary Algorithms to Aid Watershed Management." NCSU, 2004. http://www.lib.ncsu.edu/theses/available/etd-12282004-235442/.
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Watershed management is a complex process involving multiple uses, diverse stakeholders, and a variety of computer-based hydrologic and hydraulic simulation models. Exploring for efficient solutions and making decisions about the best integrated management strategies to implement can be improved through the use of quantitative systems analytic techniques. In addition to identifying mathematically optimal solutions, these techniques should also be able to consider issues that may not be properly represented in the models or may be in conflict with one another. As the complexities of the system models grow, contemporary heuristic search methods, including evolutionary algorithms (EAs), are becoming increasingly common in quantitative analysis of such challenging decision-making problems. More research is needed to enhance and extend the capabilities of these newer search methods to meet the growing challenges. Further, these new systems analytic capabilities are best made accessible to practitioners through a generic computational framework that integrates the system simulation models with the suite of search techniques. Therefore, the purpose of this research is to develop new EA-based system analytic methods for addressing integrated watershed management problems and a computational framework within which their capabilities are enabled for watershed management applications. EA-based methods to generate good alternative solutions and for multiobjective optimization have been developed and tested, and their performances compare well with those of other procedures. These new methods were also demonstrated through successful applications to realistic problems in watershed management. These techniques were integrated into and implemented within a new computer-based decision support framework that supports the integration of the user?s preferred watershed models, methods to perform uncertainty and/or sensitivity analyses thereon, and multiple state-of-the-art optimization heuristic search procedures to identify good management strategies that meet the problem-specific (e.g., fiscal or environmental) objectives and constraints. The design of the software framework is described with a demonstration of its capabilities via a case study involving several scenarios of a watershed management problem.
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Khan, Mohammad Arifin Rahman. "Mobility management in 5G heterogeneous networks." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2019. https://ro.ecu.edu.au/theses/2252.
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In recent years, mobile data traffic has increased exponentially as a result of widespread popularity and uptake of portable devices, such as smartphones, tablets and laptops. This growth has placed enormous stress on network service providers who are committed to offering the best quality of service to consumer groups. Consequently, telecommunication engineers are investigating innovative solutions to accommodate the additional load offered by growing numbers of mobile users.
The fifth generation (5G) of wireless communication standard is expected to provide numerous innovative solutions to meet the growing demand of consumer groups. Accordingly the ultimate goal is to achieve several key technological milestones including up to 1000 times higher wireless area capacity and a significant cut in power consumption.
Massive deployment of small cells is likely to be a key innovation in 5G, which enables frequent frequency reuse and higher data rates. Small cells, however, present a major challenge for nodes moving at vehicular speeds. This is because the smaller coverage areas of small cells result in frequent handover, which leads to lower throughput and longer delay.
In this thesis, a new mobility management technique is introduced that reduces the number of handovers in a 5G heterogeneous network. This research also investigates techniques to accommodate low latency applications in nodes moving at vehicular speeds.
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Duong, Hien D. "A Feature-Oriented Software Engineering Approach to Integrate ASSISTments with Learning Management Systems." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-theses/862.
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"Object-Oriented Programming (OOP), in the past two decades, has become the most influential and dominant programming paradigm for developing large and complex software systems. With OOP, developers can rely on design patterns that are widely accepted as solutions for recurring problems and used to develop flexible, reusable and modular software. However, recent studies have shown that Objected-Oriented Abstractions are not able to modularize these pattern concerns and tend to lead to programs with poor modularity. Feature-Oriented Programming (FOP) is an extension of OOP that aims to improve the modularity and to support software variability in OOP by refining classes and methods. In this thesis, based upon the work of integrating an online tutor systems, ASSISTments, with other online learning management systems, we evaluate FOP with respect to modularity. This proof-of-concept effort demonstrates how to reduce the effort in designing integration code."
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Momberg, J. J. "Driveability evaluation for engine management calibration." Thesis, Link to online version, 2007. http://hdl.handle.net/10019/364.
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Whalen, William D. "ADAPTIVE COMPONENT USAGE FOR THE THERMAL MANAGEMENT OF PICOSATELLITES." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/563.
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The CubeSat standard originated in 1999. It was a joint development led by Dr. Jordi Puig-Suari of California State Polytechnic University San Luis Obispo and Professor Robert Twiggs of Stanford University. The engineering challenges that have come from this picosatellite class have created incredible educational opportunities for engineering students throughout the world. Since the challenges of engineering a CubeSat abound the designers are always looking at novel and even revolutionary solutions to each one. One of those opportunities is in thermal subsystem design, implementation and characterization. A potential solution for CubeSats is adaptive component usage.
This thesis is the written catalogue of my study of adaptive component utilization to solve the thermal management problem inherent in picosatellites. Inside the limited design space of a picosatellite’s electrical, mechanical and software subsystems active spacecraft thermal control often is a necessary forfeiture. This does not preclude CubeSat teams from addressing the thermal aspect of spacecraft design. To the contrary it forces them down a different route to ensuring the spacecraft is verified to meet appropriate environmental constraints. Most CubeSat teams, Cal Poly included, use punishing qualification testing, robust system design and a restricted spacecraft operational lifespan ensure their system will operate through all of the environments it will encounter during launch, separation, spacecraft activation and on until the end of operations.
The testing, engineering and modeling I performed were to answer the hypothesis, can a standard* 1-U CubeSat utilize existing hardware and software to improve its thermal condition and operational lifetime?
This hypothesis assumes thermal control or situational improvement would have to be gained without the addition of thermal control surfaces, active heaters, heat pipes or louvers and no additional flight software. Ground control software and operation alterations were explicitly not included in these assumptions.
The thesis began with defining the many unknowns that existed in the material properties. This required: research into the methods required, specialized measurement hardware to be obtained and set-up, controlled measurements to be taken and thorough testing procedures to be developed. Once the unknowns were better defined the thesis required a detailed satellite thermal analysis by multiple methods along with both thermal vacuum chamber simulation trials and finally on-orbit testing.
Based on the research, modeling and testing performed and results obtained through this study, yes, a standard* 1-U CubeSat utilizing existing hardware and software can improve its thermal condition and operational lifetime. As is shown in Section 3.0 and discussed in detail in Section 4.0, utilizing only the onboard electronics and existing flight software the orbital temperature delta that components are experiencing can be reduced by up to 35.8%. Further analyses in section 4.0 use the temperature data to show that by lowering the temperature deltas the satellite does in fact have the capability to both improve its lifetime and certain key subsystem performance parameters.
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Pradhan, Anu Raj. "INFRASTRUCTURE MANAGEMENT INFORMATION SYSTEM FRAMEWORK FOR DISASTERS." NCSU, 2003. http://www.lib.ncsu.edu/theses/available/etd-08122003-172045/.
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Three-tiered enterprise GIS architecture offers a robust, efficient, and secure mechanism as a potential revolution to disaster management systems. This paper addresses the severe limitations of existing disaster management systems and proposes an integrated management information system as an alternative. The value of such a 3-tiered enterprise GIS is its ability to function as reliable and efficient system during a disaster. Issues related to data storage, handling, timely distribution of processing power, efficient retrieval and dissemination of information, and data security against unauthorized access have to addressed using the state-of-the-art technology. Recent advancements in (1) standardized data specification, (2) middleware services, and (3) web-enabled distributed computing provide key resources to design and implement a tool of unprecedented flexibility and capacity for disaster management. This paper presents the critical details of such a system.
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Price, G. Alexander. "LONG-TERM NITROGEN MANAGEMENT IN BIOREACTOR LANDFILLS." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20011214-153926.
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One scenario for the long-term nitrogen management in landfills is ex-situ nitrification followed by denitrification in the landfill. The objective of this research was to measure the denitrification potential of actively decomposing and well decomposed refuse. A series of 10-L reactors that was actively producing methane was fed 400 mg NO3-N /L every 48 hr for19 to 59 days. Up to 29 nitrate additions were either completely or largely depleted within 48 hr of addition and the denitrification reactions did not adversely affect the refuse pH. Nitrate did inhibit methane production but the reactors recovered their methane-producing activity with the termination of the nitrate addition. In well decomposed refuse, the nitrate consumption rate was reduced but was easily stimulated by the addition of either acetate or an overlayer of fresh refuse. Addition of a high acetate to nitrate ratio did not lead to the production of NH4+ by dissimilatory nitrate reduction. Although the population of denitrifying bacteria decreased by about five orders of magnitude during refuse decomposition in a reactor that did not receive nitrate, rapid denitrification commenced immediately with the addition of 400 mg NO3-N/L. These data suggest that the use of a landfill as a bioreactor for the conversion of nitrate to a harmless byproduct, nitrogen gas, is technically viable.
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Karpe, Yatin Surendra. "Weave-Room Performance Decision-Making Process in Textiles: Mapping An Information Engineering Methodology." NCSU, 2006. http://www.lib.ncsu.edu/theses/available/etd-08312006-095818/.
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The purpose of this research is to understand, define and map the weave-room performance decision-making process, and to develop an Information Engineering methodology for studying and analyzing decision-making processes in textile manufacturing departments. A preliminary Decision Cycle Model was developed using knowledge management principles, resulting in a definition of Information Engineering, which was ?a technique for extracting the meaning contained in the information so as to allow the understanding needed by the user to make an informed decision?. A case study approach, in conjunction with a process-modeling tool called IDEF0, belonging to the IDEF (Integrated Definition language) family of modeling techniques, has been used. Case studies were conducted at three weaving plants, resulting in the development of the three AS-IS models. These case studies provided the framework to compare with, and become the underlying basis for, the proposed Best Practices TO-BE model of the weave-room performance decision-making process. Additionally, both the AS-IS and TO-BE models lead to the development of ten key performance-improving tasks that could potentially assist in enhancing the decision process as well as providing the background for analyzing the usability of IDEF0 as an effective process-mapping tool, by means of a SWOT analysis. Finally, a generic Information Engineering methodology was developed that could be used for mapping manufacturing-related decisions. The research deliverables resulting from the Information Engineering methodology would eventually lead to the development and creation of a kind of Digital Decision Dashboard (D3), which could potentially prove to be a valuable tool for decision-making in textiles, thus addressing a critical need presently facing the textile industry.
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Randall, Michael J. "BEST MANAGEMENT PRACTICES EFFECTIVENESS TO REDUCE SEDIMENT TRANSPORT TO MORRO BAY." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/740.
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The Morro Bay Watershed, which is located inSan Luis Obispo County,California, covers more than 48,000 acres of land and discharges intoMorroBaythrough the Morro Bay National Estuary (MBNE). The Chorro Creek Subwatershed consists of approximately 30,000 acres of the overall watershed. The MBNE provides an ecosystem that supports a variety of wildlife from the common sea gull to the endangered sea otter. The estuary is also home to over 200 species of birds. The operational waterfront of theMorroBayHarborwas and continues to be a strong supporter to the local economy of the City of Morro Bay. Numerous studies were conducted since the 1990s throughout the watershed to study the sedimentation of the estuary and bay and identified accelerated erosion and subsequent sedimentation as a major threat to sustainability of the bay. As a result, various Best Management Practices (BMPs) were implemented in the watershed to reduce sediment loading and transport to the bay. Localized evaluations of various BMPs have been performed to investigate effectiveness of individual BMPs. This paper consolidates this information and develops a comprehensive spatially distributed watershed simulation model (1) for detailed understanding of the erosion and sedimentation processes in the watershed; (2) to evaluate a watershed scale effectiveness of the conservation practices that were installed in the watershed; (3) to identify optimal BMP types and sites that may be used in the future to further reduce sedimentation of the bay at minimal cost; (4) to organize and document the various sources of data and studies that have been performed to date in the Chorro Creek subwatershed. Soil and Water Assessment Tool (SWAT) was used to develop the model and to evaluate the pre- and post-BMP implementation characteristics in the subwatershed. Combining the data and efforts of past BMP evaluations, land use, soil type, climate data, and streamflow data, statistical evaluations, and model sensitivity analysis will help build and calibrate a robust SWAT model that can be used to track BMP evaluation efforts, as well as other watershed management tasks. Through the evaluation of BMPs in the watershed, efforts can be made to implement the more successful BMPs in the watershed or in other similar watersheds. Sensitivity analysis was performed using a global sensitivity analysis method and streamflow and sediment yield was calibrated using the Shuffled Complex Evolution-University ofArizona.
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Nuangjamnong, Chompu. "An investigation of network management." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2009. https://ro.ecu.edu.au/theses/1836.
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Modern information networks are so integral to everyday business and society that even short period of downtime can adversely affect many thousands of users. Because of the inherently heterogeneous nature of network devices and protocols, these networks are typically administered using a range of command-line interface (CLI) tools and graphical user interface (GUI) tools from many different vendors. Mastering all these different tools takes time and experience and it is often hard to get an integrated, high-level view of the network. This means network administrators may inadve1iently misconfigure their systems or overlook a potential threat.
To explore some of these issues, this project evaluated State Model Diagrams (SMDs) as both a network administration tool and as a way of teaching administrators about fundamental networking concepts. SMDs are an abstract modelling tool that allows experienced practitioners and novices to grasp the complexities of network administration by identifying essential networking objects, processes, and concepts without getting bogged down in too many distracting details.
In 2007 and 2008, ECU post-graduate students doing networking courses were given a comprehensive demonstration of SMDs. The students then completed a questionnaire on how they thought SMDs compared to other network tools and how they thought SMDs could be practically applied. A result of twenty (48.8%) of positive responses from among 41 participating students have clearly demonstrated that SMDs were potentially useful as a NM tool for managing network systems and provided a richer conceptual understanding aligned with that of an expert.
In this research study, the results showed that SMDs would help most of the participants understand and administer their networks, and a majority believed that SMDs would help reduce the fundamental complexity of their multi-tool work environment. Lastly, fu1iher research is required with a larger and more varied population but the results so far indicate that SMDs are a valuable tool for network administrators.
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Janse, van Vuuren Francois Jacobus. "Technology licencing practices of South African manufacturing companies a profile and the influence of some organisational, transactional and contextual factors /." Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-01122005-084535.
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Nel, Johlene. "The role of middle management in strategy execution : a case study in a consulting engineering firm." Thesis, Stellenbosch : Stellenbosch University, 2010. http://hdl.handle.net/10019.1/19403.
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Thesis (MBA) -- Stellenbosch University, 2010.Strategy execution is a notorious challenge. Research shows that only two thirds of the employees at the best companies agree that strategic and operational decisions are quickly translated into action. Organisations have to devote as much energy into getting execution right as they spend on crafting the direction for their business. Planning and implementation are inevitably joined at the hip, with the success at both these aspects insuring the success of the business. The sphere in which private companies operate is profit driven by nature, which requires thorough planning and communication throughout the organisation. Middle management plays a central role in these companies and, if this group is the weakest link, failure is likely to occur. In order to be able to study the role of middle management in an organisation susceptible to the challenges mentioned above, a South African consulting engineering firm has been identified as a case study. Findings from this research study can prove helpful to the case study organisation and others in understanding the process of strategic translation and execution at middle management level and identifying possible areas for improvement or refinement. In developing an understanding of middle management’s perception of the strategic process, sense can be made of how they translate it into tasks and responsibilities and ultimately the role they play in unfolding strategic plans in the implementation process. The findings from the study highlight the critical role performed by middle managers within the CEF. Data collected through the interviews indicate that middle management has a broad understanding of the organisation’s strategy and that the roles of middle management within the CEF as connectors, knowledge conveyors and sense-makers in the execution of the organisation’s strategy are vital in successful strategy implementation. Lastly, the utilisation of the experience gained through the strategy implementation process is debatable. The researcher concludes with a request for further research to determine the extent to which organisations utilise the implementation roles of middle managers to provide substance to strategy plans
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J, Bredenhann S. "Application of neural networks in pavement management." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51619.
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Thesis (MEng)--University of Stellenbosch, 2000.ENGLISH ABSTRACT: The intent of this thesis is to examine the solving of problems with neural networks. Three cases are investigated: the calculation of a Visual Condition Index (VCI), the determination ofthe reseal need, and the back-calculation of E-moduli from measured deflection basins. The calculation of a Visual Condition Index (VCI) is a very good example of how a neural network can be applied to reach a conclusion through the association of a number of facts with one single outcome. VISual assessments of the road condition are done on a yearly basis and the Assessor gives his impression of the condition of a road. A neural network simulates the association between the inputs of elements of distress on the road and the eventual assessment of the overall condition expressed as the VCI, very well. Reseal need is determined by the Provincial Administration: Western Cape (PAWC) with a Reseal Expert System. Data produced by the expert system was used to train a neural network to determine the reseal need. The strength of using these two methods in combination is shown. Meaningful results could not be obtained due to insufficient data in certain categories. Deflection measurements with a Falling Weight Deflectometer are meaningful indicators of pavement strength. Back-calculation is used to calculate E-moduli of pavement layers which can be used in a mechanistic approach to estimate remaining pavement life from pavement response. Conventional backcalculation programs, when implemented in a pavement management system, result in very long computing times due to the large volumes of data available. Neural networks offer the alternative of very fast processing, making the implementation of back-calculation in real-time possible. It is shown that neural networks can back-calculate E-moduli, but with varying degrees of success. The main problem identified is the basis on which the dataset used to train neural networks, is generated using linear elastic theory. The biggest limitation in the linear elastic theory is that non-linear and stress dependent behaviour of materials cannot be simulated, two aspects that have a major influence on the back-calculated E-moduli. Improvements in the data generation process using a theory that accommodates non-linear and stress dependent behaviour of materials may result in improved performance of the neural networks. It is also shown that it is very difficult to design a single neural network that can be successfully used on all the possible pavement types. It is better to identify representative pavement types and train neural networks for each of these. Neural networks can be applied with success in the pavement management field and the combination of Expert Systems, Neural Networks and Fuzzy Logic can be a very powerful method to solve complicated problems. Care should be taken in the design of the neural networks and a good understanding ofthe data is a prerequisite for success.
AFRIKAANSE OPSOMMING: Die bedoeling met die tesis is om die vermoë van neurale netwerke om probleme op te los, te ondersoek. Drie gevalle word beskou: die berekening van 'n Visuele Toestand Indeks (VTI), die bepaling van die herseël behoefte en die terugberekening van die E-moduli vanaf defleksie metings. Die berekening van die VTI demonstreer die vermoë van neurale netwerke om,deur middel van die assosiasie tussen 'n hele aantal veranderlikes tot 'n enkele uitkoms, tot 'n gevolgtrekking te kom. Visuele opnames van paaie word op 'n jaarlikse basis gedoen waar die opnemer sy indrukke gee van die toestand van die pad. In Neurale netwerk simuleer die assosiasie tussen die insette (waargenome gebreke) en die uiteindelike toestands beskrywing van die pad, uitgedruk as die VTI, baie goed. Die Provinsiale Administrase: Wes-Kaap bepaal die jaarlikse herseëlbehoefte met behulp van 'n Herseël Ekspertstelsel. Die uitsette van hierdie stelsel is gebruik om 'n neurale netwerk op te lei om die herseëlbehoefte te bepaal. Die voordele om die twee stelsels saam aan te wend, word getoon. Betekenisvolle resultate kom nie bekom word nie vanweë onvoldoende inligting in sekere kategorieë. Defleksiemetings deur 'n vallende-gewig meetapparaat is betekenisvolle indikators van die plaveiselsterkte. Die E-moduli van die plaveisellae word bepaal deur terugberekenings vanaf defleksiemetings. Hierdie Emoduli kan gebruik word om met behulp van meganistiese metodes die oorblywende leeftyd van 'n plaveisel te bepaal. Konvensionele terugberekenings programme, geïmplementeer in In plaveiselbestuurstelsel, neem lank om die groot hoeveelheid defleksiemetings te verwerk. Neurale netwerke bied die alternatief van die intydse berekening van E-moduli vanweë die besonder hoë berekeningspoed wat behaal word. In hierdie tesis word aangetoon dat neurale netwerke aangewend kan word om die terugberekenigs te doen, maar met 'n wisselende mate van sukses. Die gebruik van die lineêre elastiese teorie om die data vir die neurale netwerke te genereer, word as 'n probleem geïdentifiseer. Die grootste tekortkoming wat met die lineêre elastiese teorie ondervind word is dat dit nie die nie-lineêre en spanningsafhanklike gedrag van materiale voldoende simuleer nie. Beide hierdie twee aspekte het 'n groot invloed op die akkuraatheid van terugberekende E-moduli. Verbeteringe in die generering van data deur 'n teorie te gebruik wat nie-lineêre en spanningsafhanklike gedrag van materiale behoorlik simuleer, mag lei tot 'n beter prestasie van die neurale netwerke. Dit word ook getoon dat dit moeilik is om 'n enkele neurale netwerk te ontwerp wat suksesvol gebruik kan word op alle plaveiseltipes. Dit is beter om verteenwoordigende plaveiseltipes te identifiseer en dan neurale netwerke vir elkeen te ontwerp. Neurale netwerke kan met sukses in die plaveiselbestuur veld toegepas word en die kombinasie van ekspertsteiseis, neurale netwerke en vaagheidstelsels (fuzzy) kan tot kragtige metodes lei om komplekse probleme op te los. Sorg moet aan die dag gelê word met die ontwerp van neurale netwerke en 'n goeie begrip van die data is 'n voorvereiste vir sukses.
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Bekker, Michiel Christiaan. "A review of Sasol Technology Engineering division's strategic roadmap and the implementation thereof." Thesis, Stellenbosch : University of Stellenbosch, 1999. http://hdl.handle.net/10019.1/5032.
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Thesis (MBA (Business Management))--University of Stellenbosch, 1999.ENGLISH ABSTRACT: Sasol Technology Engineering Division (SED) is part of the Sasol Group of Companies and was formally established in 1983. The organisation's immediate focus was to render technical and project management support to the operating petrochemical units of Sasol 2 and Sasol 3. During the late 1980's and early 1990's various external drivers appeared that necessitated a review and adjustment to Sasol's strategic direction. Sasol decided to unlock the value in raw materials and embarked on an investment program in major chemical production facilities. With this new drive towards implementing large, multi-million Rand, projects, SED had to re-assess its competencies and focus in order to support this new strategic drive of Sasol. During 1995 an extensive management buy-out (MBO) exercise was concluded whereby most of the technical discipline departments were outsourced. The idea was that all modification and operations support projects be handled by the MBO's. This enabled SED to focus on large projects. With the new strategic direction in place SED launched a Balanced Scorecard (BSG) exercise to convert this strategy into specific goals and communicating the strategy to all employees. This exercise led to the development of a document called the SED Strategic Roadmap. This document explained the goals and interventions required for success until 2003. The review and re-visiting of the SED Strategic Roadmap formed the main focus of this study project. A serious concern identified from the outset was that no realised strategy was drafted before the strategic intent was formalised. Therefore, in order to review the SED Strategic Roadmap a study was done on the realised organisational situation of SED by means of the results of various organisational studies done by consultants. With a realised situation formalised the development and contents of the SED Strategic Roadmap were explained. Following this explanation a broad literature review was conducted to grasp the latest thinking around the management science of strategy. With the realised strategy and theory as background the mere reason for SED's existence was unravelled. A very important finding was that SED should rather focus on improving its operational effectiveness instead of formalising a strategy. SED remains a supporting division that should underline and align itself with the strategic needs of Sasol. For reviewing purposes a "new" set of goals was identified that is closer linked with the purpose of SED. An intervention was allocated to each "new" goal to ensure focused implementation of every "new" goal. A proposal was tabled to conduct and implement the interventions in terms of project-based management, meaning that all interventions are handled as projects with budgets, time spans and specified outcomes. The listed "new" goals serve as an alternative to those in the SED Strategic Roadmap. The "new" goals support the vision of SED and provide the opportunity to excel in improving its operational effectiveness.
AFRIKAANSE OPSOMMING: Sasol Tegnologie Ingenieursdivisie (SED) is deel van die Sasol Groep van Maatskappye en het formeel tot stand gekom in 1983. Die organisasie se onmiddelike fokus was om tegniese- en projekbestuursondersteuning te gee aan die petrochemiese bedryfseenhede van Sasol 2 en Sasol 3. Gedurende die laat 1980's en vroeë 1990's het verskeie eksterne besigheidsdrywers na vore getree wat Sasol genoodsaak het om sy strategiese rigting te hersien en aan te pas. Dit het Sasol tot die besluit gebring om die waarde in rou materiaal te onsluit deur 'n investeringsprogram te loods vir die oprigting van verskeie groot chemiese produksie fasiliteite. Met hierdie nuwe dryf na die implementering van groot, multi-miljoen Rand projekte was SED genoodsaak om bevoegdhede en fokus te hersien om daardeur ondersteuning te gee aan die nuwe strategiese rigting van Sasol. Gedurende 1995 is 'n uitgebreide bestuursuitkoop (MBO) aksie geloods waartydens meeste van die tegniese dissipline departemente uitgekontrakteur is. Die gedagte was dat alle klein modifiserings- en bedryfsondersteuningsprojekte deur die MBOs hanteer moes word. Hierdeur kon SED fokus op groot projekte. Met die nuwe strategiese rigting uitgestippel het SED voortgegaan en 'n "balanced scorecard" (BSG) oefening geloods waardeer die strategiese oogmerke omgesit is in spesifieke doelwitte en na die res van die werknemers gekommunikeer is. Hierdie oefening het gelei tot die ontwikkeling van die SED Strategiese Padkaart dokument. Die dokument beskryf die doelwitte en intervensies benodig vir operasionele sukses tot en met die jaar 2003. Die hersiening en heroorweging van die SED Strategiese Padkaart vorm die fokus van hierdie studieprojek. Vanuit die staanspoor is 'n ernstige bekommernis uitgelig deurdat geen analise gedoen is van die gerealiseerde strategie voordat die strategiese intensie geformaliseer is nie. Derhalwe was dit nodig om eers 'n studie te doen waardeer die huidige, gerealiseerde strategie beskryf kon word. Hierdie studie was gedoen na gelang van die resultate van verskeie organisasiestudies wat deur konsultante uitgevoer is. Met 'n gerealiseerde situasie geformuleer is die inhoud van die SED Strategiese Padkaart verduidelik. Die verduideliking is gevolg met 'n bree literatuuroorsig rakende die wetenskap van strategiese bestuur en die nuutste denke rondom die onderwerp. Met die gerealiseerde strategie en literatuurstudie as agtergrond is die werklike rede vir die bestaan van SED opnuut ondersoek. 'n Belangrike gevolgtrekking wat gemaak kon word is dat SED liewers moet fokus op die verbetering van die organisasie se operasionele effektiwiteit in plaas van die formalisering van 'n strategie. SED bly 'n ondersteuningsdivisie en behoort gerig te wees tot die strategiese behoeftes van Sasol. Vir hersienings doeleindes is 'n "nuwe" stel doelwitte geidentifiseer wat nouer bande het met die rede vir SED se bestaan. 'n Intervensie was toegedeel aan elke "nuwe" doelwit om sodoende gefokusde implementering van elke "nuwe" doelwit te verseker. 'n Voorstel is gemaak om alle intervensies te implementeer in terme van projek-gebaseerde-bestuur. Hierdeur word verwys na die hantering van intervensies as projekte met begrotings, tydskedules en spesifieke verwagte resultate. Die gelyste "nuwe" doelwitte dien as alternatief tot die doelwitte soos beskryf in die SED Strategiese Padkaart. Die "nuwe" doelwitte ondersteun die visie van SED en verskaf die geleentheid om die verbetering van die operasionele effektiwiteit te versnel.
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Raman, Mala. "Supply management measures for alleviating urban traffic congestion." Master's thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-03302010-020519/.
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Zhang, Guanghua. "Performance Analysis and Strategic Management of Longitudinal Pavement Markings." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-11062009-155546/.
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This research evaluated longitudinal pavement marking performance and developed useful degradation models for paint pavement markings which can help transportation agencies meet the pending FHWA minimum retroreflectivity requirements. The impacts of several important factors (such as directionality, pavement type and roughness) on marking retroreflectivity were evaluated. With a large dataset in hand, we determined whether these factors had significant impacts on marking retroreflectivity. Paint pavement marking centerline retroreflectivity values measured in the direction of paint striping were found to be significantly higher than the values measured in the opposite direction. The mean values of the retroreflectivity measurements collected on the plant mixed pavements were found to be significantly larger than the values collected on the bituminous surface treatment (BST) pavements. Image processing techniques were used to analyze paint pavement marking surface glass bead density. Bead density values were found to have a positive correlation with marking retroreflectivity measurements. Higher glass bead density led to higher marking retroreflectivity. The research also compared existing marking retroreflectivity degradation models. A linear mixed effects model (LMEM) was selected as most appropriate for the paint marking retroreflectivity data. LMEMs were established for paint pavement markings based on the data collected in NC. The research outcomes can help transportation agencies have a better understanding of paint pavement marking performance, which can lead to cost savings by maximizing the marking service lifecycles.
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Kuterdem, Can Ali. "Integrated Watershed Management Using a Genetic Algorithm-Based Approach." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010713-114413.
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Kuterdem, Can Ali. Integrated Watershed Management Using a Genetic Algorithm-Based Approach (Under the direction of Dr. Ranji S. Ranjithan)Watershed management requires consideration of a multitude of factors affecting water quality at the watershed-scale while integrating point and non-point sources of pollution and control. While the existing water quality modeling systems and associated quantitative tools can assist in some aspects of Total Maximum Daily Load (TMDL) development for a watershed, their abilities to assist in determining efficient management strategies are limited. Typically, the best a user can do is employ these tools manually to explore the solution space via a trial-and-error process, which is inefficient for finding management strategies that consider water quality as well as a multitude of other design issues simultaneously. Recent implementation of the STAR (STrategy, Analysis, and Reporting) system incorporates a set of systems analytic tools to assist decisions-makers explore and identify alternative management strategies. The main engine of the STAR system is a genetic algorithm-based optimization technique, which is coupled with additional tools such as an uncertainty propagation tool, a solution reporting system, and an incremental strategy development system to form a decision support framework. This paper describes some of the capabilities of this framework through several illustrative scenarios for the Yellow River watershed in Gwinnett County, Georgia, which conducted a comprehensive, countywide TMDL investigation to assess the current water quality conditions. The STAR system?s capabilities are employed to identify ways to achieve minimum total phosphorous (TP) levels via point and nonpoint source controls, as well as characterize the implications of future urban development on TP levels. Noninferior tradeoffs between urban development and TP levels at different degrees of point source controls are generated. The range of uses of the STAR system in considering the integrated effect of point and non-point sources in watershed management is demonstrated throughout these illustrative scenarios.
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Todd, Hal M. Parten Douglas S. "A systems engineering approach to address human capital management issues in the shipbuilding industry." Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Sept/08Sep%5FTodd.pdf.
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Thesis (M.S. in Systems Engineering Management)--Naval Postgraduate School, September 2008.Thesis Advisor(s): Langford, Gary O. "September 2008." Description based on title screen as viewed on November 4, 2008. Includes bibliographical references (p. 215-220). Also available in print.
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Cronje, Mercia. "Engineering process model: Detection of cycles and determination of paths." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2376.
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Thesis (MScEng (Civil Engineering))--University of Stellenbosch, 2006.In order to plan the engineering work of large construction projects efficiently, a model of the engineering process is required. An engineering process can be modelled by sets of persons, tasks, datasets and tools, as well as the relationships between the elements of these sets. Tasks are more often than not dependent on other tasks in the engineering process. In large projects these dependencies are not easily recognised, and if tasks are not executed in the correct sequence, costly delays may occur. The homogeneous binary relation “has to be executed before” in the set of tasks can be used to determine the logical sequence of tasks algebraically. The relation can be described by a directed graph in the set of tasks, and the logical sequence of tasks can be determined by sorting the graph topologically, if the graph is acyclic. However, in an engineering process, this graph is not necessarily acyclic since certain tasks have to be executed in parallel, causing cycles in the graph. After generating the graph in the set of tasks, it is important to fuse all the cycles. This is achieved by finding the strongly connected components of the graph. The reduced graph, in which each strongly connected component is represented by a vertex, is a directed acyclic graph. The strongly connected components may be determined by different methods, including Kosaraju’s, Tarjan’s and Gabow’s methods. Considering the “has to be executed before” graph in the set of tasks, elementary paths through the graph, i.e. paths which do not contain any vertex more than once, are useful to investigate the influence of tasks on other tasks. For example, the longest elementary path of the graph is the logical critical path. The solution of such path problems in a network may be reduced to the solution of systems of equations using path algebras. The solution of the system of equations may be determined directly, i.e. through Gauss elimination, or iteratively, through Jacobi’s or Gauss-Seidel’s methods or the forward and back substitution method. The vertex sequence of an acyclic graph can be assigned in such a way that the coefficient matrix of the system of equations is reduced to staggered form, after which the solution is found by a simple back substitution. Since an engineering process has a start and an end, it is more acyclic than cyclic. Consequently we can usually reduce a substantial part of the coefficient matrix to staggered form. Using this technique, modifications of the solution methods mentioned above were implemented, and the efficiency of the technique is determined and compared between the various methods.