Дисертації з теми "Operational value"
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Shantia, Ali. "Operational Strategies to Foster Technology Improvement in Value Chains." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLH007/document.
Повний текст джерелаThis research is in the interface of sustainable operations management, technology management, and finance. Specifically, in my research I strive to examine firm's incentives to adopt `technology improvement' (TI) measures that lead to the more efficient use of inputs in operations and thereby affect the cost structure, risk exposure, and environmental performance of firms. Thus I seek to identify the factors that affect---and the mechanisms by which they do so---a firm's decision to invest in TI: forces within a supply chain, price uncertainty in the markets for inputs, cash constraints, financial hedging mechanisms, industry competition, and the firm's competitive pricing strategy. By collaborating with professors in the fields of operations research, economics, and finance, I have embraced a multidisciplinary approach to studying the adoption of efficient and sustainable technologies.In particular, in my first chapter, ``Technology Improvement Contracting in Supply Chains under Asymmetric Bargaining Power'' I examine how asymmetric bargaining power---between buyers and suppliers---affects the optimal level of investment in technology improvement. In my second chapter, ``Input-price Risk Management: Technology Improvement and Financial Hedging'', I explore the mechanism driving a firm's interest in TI under increased uncertainty about input prices. Finally, in the third chapter, ``The Value of Financial Risk Management in Dynamic Capacity Investment and Technology Improvement'', I study the role of budget constraint and financial hedging on the choice of technology
Esterhuysen, Ja'nel Tobias. "The management of operational value at risk in banks / Ja'nel Esterhuysen." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1676.
Повний текст джерелаBryans, Robert. "Linking operational excellence to shareholder value : McDonald's as a case study." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/21214.
Повний текст джерелаENGLISH ABSTRACT: McDonald's is world renowned for the benchmark standards it sets in operations management. This is evidenced by the numerous references in operations management textbooks over the last 10-15 years. However, since 1999, McDonald's has not been able to link this operations excellence to creating shareholder value. In fact, the McDonald's share price has declined by 64 % over the last 4 years. In comparison, Wendy's (McDonald's biggest competition in the US fast food market) share price has increased by 2 % over the same period. Understanding why McDonald's has not been able to link operational excellence and the creation of shareholder value is the reasoning behind this mini-thesis. The hypothesis is that there are a number of factors. which influence shareholder value, and operational excellence is but one of these factors. A literature survey was conducted in order lO understand the underlying theories which link operational excellence and shareholder value creation. Evidence supporting this hypothesis is then presented and discussed. In Chapter 3, McDonald's ability to deliver operational excellence is evaluated against the evidence presented in operations management textbooks and other sources. The success of McDonald's in delivering perfonnance in the other factors affecting shareholder value is then discussed in Chapter 4 and compared to its biggest competition. Firstly, the share price of McDonald's is compared to its biggest competition (Wendy's), then the strategy of McDonald's and its impact on shareholder value creation is discussed, along with McDonald's ability to implement the other important factors and drivers, namely customer value creation, efficiency of value delivery and direct financial impact on shareholders. As a result of the above evidence. it was found that there are two basic reasons why McDonald's has not been able to link operational excellence and shareholder value creation: 1. Relative to its competition, McDonald's has not demonstrated sufficient competence in the other factors, which influence shareholder value creation. These factors are: customer value creation and the efficiency of customer value delivery. This is further evidenced by the financial output measures of McDonald's relative to its competition. 2. McDonald's ability in delivering operational excellence has diminished recently. This is evidenced by falling ratings in customer satisfaction surveys. The above reasons are evidenced by customer satisfaction survey results, comparative financial results and a number of non-direct driver results. In order to increase shareholder value creation, it is recommended that McDonald's change the focus of its strategy from operations to the creation of customer value. In order to support this change, the organisational structure and business processes will have to be changed by top management, who must be the crusaders of this change.
AFRIKAANSE OPSOMMING: McDonald's is bekend vir die maatskappy se wereldklas bedryfs bestuur standaardc. Die standaarde word tel kens na verwys in menige bedryfs bestuur handboeke oor die afgelope 10 tot 15 jaar. McDonald's kon egtcr nie daarin slaag om die hoe bedryfsbetuur standaarde in aandeelhouer waarde te omskep nic. Die waarde van die McDonald's aandele het met 64% gedaaJ oor die afgelope 4 jaar. In kontras het Wendy's (McDonald's se grootste mededinger in die Amerikaanse kitskos mark) se aandeel pryse met meer as 2% gestyg oor dieselfde peri ode. Die redc vir hierdie studie is dan juis om te bepaal waarom McDonald's nie hul voortrcflike bestuurs standaarde kon koppel aan stygende aandeelhouer waarde nic. Die hipotese is dat daar 'n aantal faktore is wat die aandeelhouer waarde van 'n maatskappy bepaal en dat bedryfs bestuur standaarde maar net een van hierdie faktore is. 'n Literatuur studie is gedoen om te bepaal wat die verwantskap is tussen puik bedryfsbetuur standaarde en die skepping van aandeelhouer waarde. Die bewyse vanuit die literatuurstudie is dan gebruik om die hipotese mee te toets. In Hoofstuk 3 is die vennoe van McDonald' s om hoe bedryfsbestuur standaarde te handhaaf evalueer aan die hand van die literatuur studie. McDonald's se sukses in die implementering van die ander faktore wat lei tot verhoogde aandeelhouer waarde is in Hoofstuk 4 bespreek en terselfde tyd vergelyk met die verrnoens van sy grootste mededingers. Eerstens is die aandeelprys van McDonald's met die van sy grootste mededinger (Wendy's) vergelyk en tweedens is die strategie van McDonald's en die impak daarvan op aandeelhouer waarde bespreek. Ander belangrike faktore soos kliente waarde skepping. effektiwiteit van waarde toevoeging en direkte finansiele impak op aandeelhouers is ingesluit in die bespreking. Daar is gevind dat daar twee hoofredes is waarom McDonald's nie daarin geslaag het om bedryfs bestuur uitmuntenheid te omskep in aandeelhouer waarde nie: 1. McDonald's het in vergelyking met sy mededingers nie goed genoeg gedoen m.b.t. die ander faktore wat aandeelhouer waarde bernvloed nie. Hierdie faktore is kliente waarde skepping en effektiwiteit van waarde toevoeging. 2. McDonald's se bedryfs bestuur standaarde het begin afneem. Dit word gestaaf deur laer waarderings in klante tevredenheids bepalings. Die onvermoe van McDonald' s om die bogenoemde faktore te implementeer word deur die klante tevredenheids bepalings, vergelykende finansiele resultate en 'n aantaJ indirekte maatstawwe gestaaf. Daar word dus voorgestel dat McDonald's sy stralegiese fokus moet verskuif vanaf bedryfs bestuur optimisering na kliente waarde skepping. Die organisasie struktuur en besigheids prosesse van McDonald's sal dus deur bestuur herorganiseer moet word om die verandering in strategie te kan ondersteun.
Rivera, Mancía María Elena. "Modelling operational risk using a Bayesian approach to extreme value theory." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123216.
Повний текст джерелаLa théorie des valeurs extrêmes concerne l'étude du comportement caudal de lois de probabilité. Ces dernières années, elle a trouvé de nombreuses applications dans des domaines aussi variés que l'hydrologie, l'actuariat et la finance, où l'on doit parfois modéliser des phénomènes complexes à partir d'un petit nombre d'observations.La théorie des valeurs extrêmes permet d'évaluer le risque d'événements rares par la méthode des maxima bloc par bloc ou celle des excès au-delà d'un seuil. Le choix du seuil est à la fois influent et délicat, vu la nécessité de trouver un équilibre entre le biais et la précision des estimations. À l'heure actuelle, ce seuil est souvent choisi arbitrairement, soit à partir d'un graphique ou d'un quantile élevé des données.L'inférence bayésienne permet de contourner cette difficulté en traitant le seuil comme un paramètre du modèle. L'approche bayésienne permet en outre d'incorporer des observations internes et externes en lien avec l'opinion d'experts, fournissant ainsi un cadre probabiliste naturel pour l'évaluation des modèles de risque.Cette thèse décrit un cadre d'inférence bayésien pour les extrêmes. Ce cadre est inspiré des travaux de Behrens et coll. (2004), dans lesquels l'étude des extrêmes est réalisée au moyen d'un modèle de mélange alliant une forme paramétrique pour le cœur de la distribution et une loi de Pareto généralisée (LPG) pour sa queue. L'approche proposée exploite toute l'information disponible pour le choix des paramètres des deux lois, y compris le seuil. Une analyse bayésienne tenant compte d'avis d'experts sur les paramètres des lois a priori est ensuite effectué; l'inférence a posteriori s'appuie sur une chaîne de Markov Monte-Carlo. Nous appliquons cette approche à des données relatives aux risqué opérationnels afin d'analyser sa performance.Les principales contributions de cette thèse sont les suivantes :-On fait rarement appel aux modèles bayésiens pour l'analyse du risque opérationnel. Au chapitre 3, nous montrons comment adapter ces modèles à l'analyse du risqué opérationnel au moyen de statistiques de fraudes recueillies par des banques entre 2007 et 2010. L'intégration d'information a priori aux données nous permet d'estimer le capital minimal requis pour chaque banque, ainsi que diverses mesures de risque telles que la valeur à-risque (VaR) et le déficit prévu (DP).-Les avis d'experts jouent un rôle clef dans la modélisation du risque opérationnel. Toutefois, cette question est souvent traitée de façon incorrecte. Au chapitre 4, nous examinons le problème dans son contexte et montrons comment choisir une loi a priori à partir de mesures que les experts connaissent bien, dont la VaR et le DP. Le but est de faciliter le choix de la loi a priori et de mieux refléter l'avis des experts.-À la section 4.3, nous décrivons diverses techniques de synthèse d'opinions d'experts. Bien que ce problème ait déjà été abordé dans d'autres domaines, il est relativement nouveau dans notre contexte. Nous montrons comment élaborer une loi a priori à partir d'avis d'experts et mesurons leur influence sur la loi a posteriori. Des données réelles et simulées sont utilisées aux fins d'illustration.-Au chapitre 5, nous proposons plusieurs nouveaux modèles faisant intervenir des mélanges de lois gamma et de Pareto généralisées. Ces modèles étendent les travaux de Behrens et coll. (2004) dans la mesure où la loi des pertes peut être continue à un quantile donné ou avoir une première dérivée continue au point de jonction. Nous traitons aussi les cas o ù l'échelle est arbitraire et la densité est discontinue.-Enfin, nous présentons deux modèles non paramétriques. Le premier s'appuie sur le fait que le modèle LPG peut être représenté comme un mélange gamma de lois exponentielles; dans le second, l'information a priori sur les paramètres du modèle LPG est représentée par un processus de Dirichlet.
Dunn, Nicholas (Nicholas S. ). "Analysis of urban air transportation operational constraints and customer value attributes." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117987.
Повний текст джерелаThesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, in conjunction with the Leaders for Global Operations Program at MIT, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 87-88).
Urban Air Mobility (UAM) is a concept that proposes to provide short-range transportation solutions that enable customers to travel point-to-point more quickly than they can today using cars or public transportation. The concept of Urban Air Mobility is not new, but there has been rapidly increasing interest in providing air transportation services within major metropolitan areas. The combination of increasing congestion and advancements in electric aircraft and automation makes the Urban Air Mobility market more attractive for vehicle manufactures and transportation companies. There are many potential applications for new aircraft. However, these applications cannot be based solely on what is technological feasible, but must consider the market, demand, and customer needs. This thesis investigates these factors in order to identify operational challenges that may develop during the implementation and operation of an Urban Air Mobility system. The study focuses on Dallas-Fort Worth to set the scope to one potential early adoption market. The objective is to understand the Dallas-Fort Worth environment better in two dimensions. The first is resident's current perceptions and values. The second is the operational challenges and constraints associated with operating a UAM system. In order to meet this objective, a survey of community members and potential early adopters is conducted to determine customer's perceptions of a UAM system and identify operational challenges that may develop based on customer needs. Next, a case study is completed using 10 reference missions in the Dallas-Fort Worth metropolitan area. The missions represented potential commuter trips, point-to-point trips like sporting events, and randomly generated missions. Through this case study, nineteen operational challenges are identified that may impact the development, implementation, and operation of an Urban Air Mobility system. After reviewing each reference mission, community acceptance of aircraft noise and take off and landing area availability were identified as the operational constraints likely to cause the greatest challenges for UAM operations in Dallas Fort Worth.
by Nicholas Dunn.
M.B.A.
S.M.
Salifu, Ekililu. "Value for money evaluation of three operational NHS Private Finance Initiative contracts." Thesis, University of Essex, 2017. http://repository.essex.ac.uk/20542/.
Повний текст джерелаLang, Xiaoling. "Operational improvement and mixed model value stream development for gauge production line." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62502.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 72-73).
Gauge production line in Company X has an average daily demand of 13 gauges now. And the demand expects to rocket to 26 gauges per day in 2011. However, the current daily throughput is 10 gauges. The current state value stream map was constructed to understand current production and find out the waste. To eliminate operational waste, operator work load was balanced and corresponding standard work procedure for operators and production monitoring technique were developed. The daily production throughput increased by 30% from 10 gauges to 13 gauges. To achieve the daily throughput of 26 gauges, the capacity of current line was analyzed and necessary improvements for flow were identified. Operator workload was rebalanced to meet the demand. Kanban system was suggested for production control. And to reduce the lead time, the production line was also recommended to schedule for mixed production. Finally, the future state value stream map was constructed. The total lead time for electronics parts and mechanical parts from receiving to shipping was reduced from 100 days to 51 days and 57 days to 31 days respectively. And the processing time was reduced from 4.1 hours to 2.5 hours for each gauge.
by Xiaoling Lang.
M.Eng.
Afambo, Edoh Fofo. "Operational Risk Capital Provisions for Banks and Insurance Companies." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/rmi_diss/15.
Повний текст джерелаAltarazi, Safwan A. Cheraghi S. Hossein. "Operational tolerance allocation and machine assignment under process capability and product value constraints." Diss., Click here for available full-text of this dissertation via Current Research@Gateway, 2005.
Знайти повний текст джерела"May 2005." Title from PDF title page (viewed on August 2, 2006). UMI No.: AAT 3189235 Thesis advisor: S. Hossein Cheraghi. Includes bibliographic references (leaves 136-161).
Lukic, Boris. "The Use of Operational and Financial Hedging and its Effects on Firm Value." St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/02603801002/$FILE/02603801002.pdf.
Повний текст джерелаWuilmart, Adam, and Erik Harrysson. "Assessing the Operational Value Creation by the Private Equity Industry in the Nordics." Thesis, KTH, Matematisk statistik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-275693.
Повний текст джерелаPrivate Equity industrin ser ökande inströmning av investeringskapital, vilket resulterat i att en allt större del av ekonomin utgörs av private equity-ägda företag. Därmed ökar vikten av att förstå hur private equity firmor påverkar sina portföljbolag under ägandeperioden. Denna studie undersöker hur EBIT-marginalen i företag förändrats över en treårsperiod efter att företagen blivit förvärvade av ett nordiskt private equity-bolag. Studien hittade en signifikant skillnad mellan hur företag med initialt positiv, respektive negativ EBIT-marginal påverkades under treårsperioden och två separata modeller skapades för att utvärdera effekten. Resultaten påvisade med signifikans att företag med initial positiv EBIT-marginal minskade sin EBIT-marginal med 1.14% relativt jämförbara företag efter ett private equity förvärv. För företag med initialt negativ EBIT-marginal påvisades med signifikans en ökning av EBIT-marginalen med 1.99% relativt jämförbara företag efter ett private equity förvärv. Studien påvisar därmed att private equity ägande har en påverkan på operationell lönsamhet och att den skiljer sig markant beroende på ifall företaget initialt är operativt lönsamt eller ej.
Hedberg, Viktor, and Jens Lindström. "Value Stream Mapping in New Product Introduction – A Case Study at Ericsson." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98491.
Повний текст джерелаSheikh, Adnan. "Consumer response to road pricing: Operational and demographic effects." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54412.
Повний текст джерелаCassone, Deandra Tillman. "A process to estimate the value of a company based on operational performance metrics." Diss., Manhattan, Kan. : Kansas State University, 2005. http://hdl.handle.net/2097/66.
Повний текст джерелаGuitton, Antoine 1963. "The value of RFID in transportation : from greater operational efficiency to collaborative transportation management." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/29524.
Повний текст джерела"June 2004."
Includes bibliographical references (leaves 112-115).
This paper assesses the value of Radio Frequency Identification (RFID) in the transportation forecasting, planning, and execution processes for truckload (TL) and less than truckload (LTL) services. The results show that the value of RFID in transportation highly varies according to the sub-process and the player which are considered. The value in forecasting and planning is high for consignees and TL carriers, but low for shippers. For the execution process, the value is high for consignees, moderate for shippers, low for TL carriers and potentially high for LTL carriers. Fundamentally, the common value that RFID can bring to each player is labor cost reduction, obtained by automation of dock and clerical activities, and better service in tracking and reconciling, thanks to accurate and up-to-date information. The potential for dramatic improvement in transportation through RFID exists. Achieving such improvement will be possible only if information sharing rules, such as those espoused by Collaborative Transportation Management (CTM), and well formalized procedures are implemented. RFID can give to CTM invaluable "raw material", while CTM can enable the transportation players to fully take advantage of this material.
by Antoine Guitton.
M.Eng.in Logistics
Chung, Yea Sun. "Identification of Economic Value Drivers Impacting Operational Cash Flows in the Casual Theme Restaurant Industry." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/32573.
Повний текст джерелаThe statistical analysis was based on time series data, using Cross Correlation, Granger Causality, and Multivariate Regression. An exhaustive range of economic value drivers within ten categories were tested: commodity market; foreign currency market; labor market; inflation; stock market; national income and output; interest rate; government revenue, spending, debt, and taxes; money supply; and consumer spending. The unit of analysis was done at the industry level, and an index of operational cash flows of the casual theme sector of the restaurant industry was developed.
Economic value drivers within the categories of commodity markets, labor markets, inflation, stock market, national input/output, government revenue/spending/debt/taxes, money markets, and consumer spending indicated co-movements with and causality to the index of operational cash flows per unit in the casual theme restaurant industry. A high variance in the operational cash flows in the casual theme restaurant industry was explained by a set of economic value drivers within commodity markets, inflation, and labor markets.
In broad, practical terms, the study intends to support the importance of assessing the economic environment for better performance of the restaurant industry and to provide food service managers with a conceptual model to understand the unanticipated effects on the performance of existing or new strategies. In real terms, the model and set of economic value drivers in the model would help them decide what kinds of action or investment in a firm or industryâ s weakness should be taken to buffer future operational risks against value drivers within economic environment.
Master of Science
Künle, Eglantine Verfasser], and Martin [Akademischer Betreuer] [Faulstich. "Incentives to value the dispatchable fleet`s operational flexibility across energy markets / Eglantine Künle ; Betreuer: Martin Faulstich." Clausthal-Zellerfeld : Technische Universität Clausthal, 2018. http://d-nb.info/1231363657/34.
Повний текст джерелаKakosimos, Panagiotis, and Stasinos Chiotakis. "Industry digitalization: Value creation, innovation, and opportunities by transforming the products & services." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21377.
Повний текст джерелаUchytil, Joseph. "Assessing the operational value of situational awareness for AEGIS and Ship Self Defense System (SSDS) platforms through the application of the Knowledge Value Added (KVA) methodology." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FUchytil.pdf.
Повний текст джерелаThesis Advisor(s): Thomas J. Housel. "June 2006." Includes bibliographical references (p. 71-72). Also available in print.
Berndt, Shin Diana. "Information Management between Project Phases : The Value Creation Process of Recognizing Digital Waste between Construction and Operational Phases." Thesis, KTH, Ledning och organisering i byggande och förvaltning, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297948.
Повний текст джерелаDigitalisering som en drivande kraft i AEC-industrin är inte längre ett nytt ämne när man talar om att påskynda innovation och lösa miljöutmaningar. Traditionella tillvägagångssätt kan begränsa vissa delar av resultatet och många frågeställningar som kunde ha besvarats genom ett tidigt engagemang av intressenter, blir lösta i mycket senare skeden av projektet, till stora kostnader. På lång sikt är driftsfasen i ett byggprojekt den mest krävande när man tittar på livscykeln av en byggnad. Så varför ingår inte O&M i integrerade modeller? Denna uppsats tar sig an detta ämne utifrån antagandet att informationshantering spelar en strategisk roll för att övervaka de olika kraven, hur brådskande det kan vara och användningen från båda sidor. Den första teoretiska utgångspunkten som användes var Lean Managements huvudsakliga premiss att värde skapas genom identifiering av avfall i en kontinuerlig förbättringsprocess. Den andra teoretiska utgångspunkten som användes var för att analysera resultaten med avsikten att simulera ett optimalt sammanhang för informationsflöde och förstå var de största flaskhalsarna låg. Resultaten visar att det upplevda värdet på den tillagda informationen är lågt från aktörer som faktiskt matar modellen, lite högre för projektledare men en viktig del av informationschefernas ansvar. Problemen relaterade till digitalisering var direkt kopplade till bristen på kommunikation mellan team, brist på standarder mellan olika team samt svårigheter att hitta effektiv och korrekt information. Praktiska problem med informationsmodeller relaterade till branschen visar också att det behövs fler roller som fokuserar på informationshantering. En modell baserad på Lean Management fem olika principer är i likhet med Information Management-praxis och presenteras och infogas sedan som möjliggörare för en kontinuerlig förbättringscykel. Baserat på resultaten kan vidare forskning utvärdera mer detaljerat synen från operativa team mot informationshanteringsroller.
Katz, Donald Samuel. "Revenue and operational impacts of depeaking flights at hub airports." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45953.
Повний текст джерелаGriffis, Brent Patrick. "Multi-Criteria Decision Modeling for Best Value Selections in Target Value Design Integrated Project Delivery." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1729.
Повний текст джерелаTendayi, Tinashe George. "An investigation into the applicability of lean thinking in an operational maintenance environment." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85841.
Повний текст джерелаENGLISH ABSTRACT: It has been postulated that lean thinking principles can be successfully applied to any industry. Following on that postulation, there have been great advances in the area of lean thinking outside the “traditional” domain of manufacturing. One such advancement has been in the area of maintenance operations where lean thinking has been used through the concept of lean maintenance. However, a problem lies in the fact that the work that has been done so far has been largely limited to the manufacturing environment where lean maintenance is practised as a prerequisite for lean manufacturing. Little evidence exists of the use of frameworks or models that can test, let alone apply, lean thinking in operational maintenance environments outside of the manufacturing context. The main objective of this research was to come up with a framework, based on lean thinking tools and relevant performance measures, which will prove the applicability or otherwise, of lean thinking in an operational maintenance environment outside the traditional domain of manufacturing. A case study of the rolling stock section of the Salt River depot of PRASA, Metrorail, which is a typical non-traditional domain for lean thinking, was used to build and verify the framework. The Analytic Hierarchy Process (AHP) together with the Quality Function Deployment (QFD) process, is used in building and quantifying the judgements made in developing elements of the framework. The Value Stream Management process is used to predict the possible outcomes of using the proposed framework in the case study. The study was based on the hypothesis that lean thinking can also be applicable to non-manufacturing oriented maintenance organisations. The ensuing framework is used to make the argument for the use of the lean thinking approach in non-manufacturing oriented maintenance environments and hence expand the body of knowledge in this subject area. It also provides a roadmap for PRASA, Metrorail and other similar maintenance organisations in the rail industry to streamline and improve current operations through value addition and waste elimination efforts.
AFRIKAANSE OPSOMMING: Daar word bespiegel dat die beginsels van besparende denke (“lean thinking”) suksesvol toegepas kan word op enige industrie. As gevolg van hierdie hipotese is daar groot vooruitgang op die gebied van besparende denke buite die “tradisionele” gebied van vervaardiging. Een sodanige vooruitgang is op die gebied van die verrigting van instandhouding waar besparende denke bekend is as die konsep van “lean maintenance”. Die problem is dat die vooruitgang tot dusver beperk is tot die vervaardigingsomgewing waar besparende instandhouding beskou word as ‟n vereisde vir besparende vervaardiging. Daar word min gebruik gemaak van raamwerke of modelle om besparende denke te toets of om dit toe te pas in instandhoudingsomgewings buite die vervaardigingskonteks. Die hoofdoelwit van hierdie navorsing is om te vore te kom wet ‟n raamwerk wat gegrond is op besparende denke en relevante prestasie maatstawwe, en wat die toepaslikheid van besparende denke , al dan nie, op die verrigting van instandhouding buite die tradisionele gebied van vervaardiging sal bewys. ‟n Gevalle studie van die Soutrivier Depot van PRASA Metrorail, wat tipies is van ‟n nie-tradisionele gebied vir besparende denke, is gebruik vir die bou en stawing van die raamwerk. Die analitiese hiëragiese proses (AHP) tesame met die kwaliteits funksionele ontplooiing (QFD) proses word gebruik in die kies van elemente vir die raamwerk. Die waarde stroom bestuursproses word gebruik om die moontlik uitkomste van die gebruik van die voorgestelde raamwerk, te voorspel. Die studie is gegrond op die hipotese dat besparende denke ook toegepas kan word op nie-vervaarding-georienteerde instandhoudingsorganisasies. Die raamwerk word gebruik om te bewys dat die besparende denke benadering gebruik kan word in nie-vervaardiging–georienteerde instandhoudingsomgewings en dus kennis hieroor uit te brei. Die raamwerk kan ook gebruik word as ‟n padkaart deur Metrorail en ander soortgelyke instandhoudingsorganisasies in die spoorweg industrie, om hulle huidige werksverrigting deur waarde toevoeging te verbeter en om verkwisting te voorkom.
Vizcarra, Osben, Fernando Sotelo, Carlos Raymundo, and Francisco Dominguez. "Model for Improving Post-sales Processes Applying Lean Thinking to Reduce Vehicle Delivery Times at an Automotive Company." Springer Verlag, 2020. http://hdl.handle.net/10757/656136.
Повний текст джерелаThis paper proposes the application and implementation of the lean thinking methodology at a company dedicated to selling vehicles, spare parts, and post-sales services. For these purposes, tools such as process maps, flowcharts, indicators, system layout planning tools, and 5S implementation are used, supported by training sessions for process participants. As a result, customer complaints were reduced by 0.13% per month, and the number of work orders handled by the site increased by 0.38% per month. Moreover, a 0.32% increase in man/hour productivity was reported, leading to a 44.32% decrease in Duster vehicle delivery times.
Terrones, Lafosse Erika Muriel, Añazgo Sissy Teresa Fernandez, and Cotlear Aldo Ernesto Silva. "Dirección del Proyecto Alma Andina aplicando estándares del PMI®." Master's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/628115.
Повний текст джерелаAlma Andina EIRL. is a company interested in investing in agriculture through the production and marketing of hydroponic products in the Tumbes region; so, it requires the creation of the Business Case that will serve to support the feasibility of the investment of USD $449,369.94 necessary to enter this new line of business in front of its potential capitalist partner. This investment expects a Net Present Value (VPN) of US$161,950.05 for 5 years of operation and an Internal Return Rate (IRR) of 16.72%. To carry out this investment will require the execution of a project involving the "Design, Construction and Equipment of a Hydroponic Production Plant in the Tumbes Region" with a daily production capacity of 2000 units, a Budget Total $364,114.80- and 6-month execution time. To ensure success in the implementation of this project, a Plan for Project Management will be carried out applying the world-class best practices provided by the PMI® through the standards presented in the PMBOK guide®, 5th Edition.
Trabajo de investigación
Cleverton, Jennifer Gaye. "The social construction and operational significance of fair values : a case study of a financial services organisation." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/the-social-construction-and-operational-significance-of-fair-values-a-case-study-of-a-financial-services-organisation(b95ce8d7-9b04-4acd-bba5-8c9b0bcbf885).html.
Повний текст джерелаHattingh, Maria Jacoba. "Instrument to evaluate to which extent the operational support information system (OSIS) adds value to the South African Air Force (SAAF)." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2011.
Повний текст джерелаSince the 1940s, the evaluation of information systems has been the topic of many authors’ research. When taking into account the amount of resources invested in an organisation’s information systems, especially in the present fiscal conditions, then the evaluation of an information system’s success is imperative. Traditionally, monetarybased evaluation measures were used to evaluate the success of an information system, however, these types of measures were found to be inadequate in their attempt to measure the complexity of information systems successfully. Surrogate measures, such as the user’s satisfaction with the information system, were developed to replace monetary-based evaluation measures. These forms of measures are often perceptual by nature and usually encompass the different stakeholders involved in the information system.
Karam, Elias. "Measuring and managing operational risk in the insurance and banking sectors." Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-01057040.
Повний текст джерелаElyurek, Mehmet. "Establishing a vibration threshold value, which ensures a negligible false alarm rate for each gear in CH-53 aircraft using the operational data." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FElyurek.pdf.
Повний текст джерелаThesis advisor(s): Samuel E. Buttrey, Robert Koyak. Includes bibliographical references (p. 77-78). Also available online.
Stevens, Ana. "Options for developing a new mid micron value proposition for consumers." Lincoln University, 2007. http://hdl.handle.net/10182/364.
Повний текст джерелаArms, Anda R. "Indicators of success: measuring outcomes of evacuating pets in state and local emergency preparedness operational plans in area of economic and public health value." Kansas State University, 2010. http://hdl.handle.net/2097/6394.
Повний текст джерелаDepartment of Landscape Architecture/Regional and Community Planning
Richard L. Hoag
Abstract On October 6, 2006 President Bush signed the Pets Evacuation and Transportation Standards Act (PETS Act, Pub. Law No. 109-308). The Act ensures that state and local emergency preparedness operational plans address the needs of individuals with household pets and service animals following a major disaster or emergency (The Library of Congress, 109:H.R. 3858, 2006). This thesis identifies nineteen indicators to be used to evaluate the effectiveness of the PETS program in the areas of economics and public health. This report gives specific examples of how each indicator can be used to measure, assess, guide, and monitor the outcomes of evacuating pets in state or local emergency preparedness operational plans.
Tyira, Tshegofatso Windy. "An analysis of the operational value of the environmental management systems (ISO14001:2004) implemented at selected underground platinum mines in South Africa / cTshegofatso Windy Tyira." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9848.
Повний текст джерелаThesis (M. Environmental Management)--North-West University, Potchefstroom Campus, 2013.
Vojtěch, Jan. "Využití teorie extrémních hodnot při řízení operačních rizik." Doctoral thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-72228.
Повний текст джерелаSolčániová, Ivona. "Studie operativního řízení výroby ve vybrané firmě." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231423.
Повний текст джерелаGabbay, Arthur Monteiro. "Simulação de Monte Carlo para mensuração do risco operacional: aplicação do modelo LDA." Universidade Presbiteriana Mackenzie, 2010. http://tede.mackenzie.br/jspui/handle/tede/502.
Повний текст джерелаFundo Mackenzie de Pesquisa
Many authors consider Operational Risk as a key variable for maintaining the balance of the global financial market. The objective of this dissertation is to study the development of a Advanced Measurement Approach (AMA), specifically the Loss Distribution Approach (LDA) on a database of actual operational losses. Being more specifically, this study promotes an analysis about the results and possible limitations related to the implementation of the model. To achieve these goals, it is needed to discuss the definitions of Operational Risk, Monte Carlo Simulation and value-at-risk (VaR), considering that these concepts are crucial to the implementation of the LDA.
O risco operacional é considerado por muitos autores uma variável determinante para a manutenção do equilíbrio do mercado financeiro global. O objetivo desta dissertação é estudar o desenvolvimento de uma modelo de Abordagem de Mensuração Avançada (AMA),mais especificamente a Loss Distribution Approach (LDA), sobre um banco de dados reais de perdas operacionais. Mais especificamente este estudo promove uma análise sobre os resultados e sobre eventuais limitações relacionadas à aplicação do modelo. Para realização destes objetivos, abordam-se as definições do risco operacional, simulação de Monte Carlo e value-at-risk (VaR), haja vista que estes são conceitos cruciais para a aplicação do LDA.
Su, Liu. "Routing and Designing Networks for Two Transportation Problems." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7958.
Повний текст джерелаClement, Stephen. "USING MAVT TO INCORPORATE PUBLIC PERCEPTION WHEN CHOOSING A NUCLEAR FUEL CYCLE." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4635.
Повний текст джерелаSmogner, Peter, and Niklas Johnson. "How to enhance Shareholder Value through a Customer support in the Insurance industry : A BUSINESS DRIVEN APPROACH TOWARDS MOBILE- AND SELF-SERVICE- BUSINESS INTELLIGENCE." Thesis, KTH, Industriell Management, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133359.
Повний текст джерелаMedlöv, Daniel, and José Maria Robles. "Incorporation of Alternative income Streams Into the Lessor’s Business Model and it’s Effects on a Building Asset Value : A Case Study on Stockholm’s Private Rental Sector." Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298343.
Повний текст джерелаDigitala plattformer och verktyg har redan tagit över en stor del av människors dagliga liv och med den senast Corona-pandemin är det tydligt hur teknologiska trender har ökat, i både intensitet och komplexitet, och påverkar de flesta människors vardagsaktiviteter. Under Corona-pandemin har människor spenderat mer tid hemma och människor har socialiserar, konsumerar och arbetar med hjälp av olika digitala verktyg, vilket innebär att hemmets originella funktion har förändrats till en mer mångfacetterad funktion i människors liv. Baserad på detta så undersöker denna masteruppsatsen hur fastighetsägare, av hyresrätter i Stockholm, kan extrahera värde från dessa nämnda trender genom att inkorporera nya intäktsströmmar i deras befintliga affärsmodell. Denna akademiska uppsats undersöker också vilken påverkan dessa nya intäktsströmmar har på fastighetsvärden i hyresrättssektorn i Stockholm. Metoden för att nå en slutsats är uppdelad i två processer, där den första är att intervjua vad som benämns i uppsatsen som industri-experter inom ämnet proptech. Dessa bidrar med insikt kring vilka nya intäktsströmmar som möjliga att inkorporera i fastighetsägares nuvarande affärsmodell. Dom understödjer också med information kring vilka digitala verktyg som är nödvändiga för att kunna inkorporera tjänsteförmedling på ett effektivt sätt till hyresgäster i Stockholms privata hyressektor. Utöver detta så ger industri-experterna estimeringar kring vilka värden som kunde tillfalla fastighetsägarens för varje enskild tjänsteförmedling. Denna information används som ett underlag vid nästa skede av intervjuprocessen med fastighetsägarna. Fastighetsägarna bidrar med information kring vilka digitala verktyg dom använde, vid tidpunkten denna uppsats skrevs, och deras syn på att inkorporera förmedling av de tjänster och kontrakt som industri-experterna pekar ut under första intervjuprocessen. Intervjuerna analyseras med hjälp av tematisk analys och parallellt med detta analyseras litteratur, vilket skapade möjlighet att utvärdera vilka finansiella effekter som en inkorporering av tjänsteförmedling kan få på hyresrättssektorn i Stockholm. Uppsatsen når slutsatsen att inkorporering av tjänsteförmedling kan skapa värde för både hyresgästen och fastighetsägaren, även om de specifika tjänsterna inte pekas ut. Marknaden var vid tidpunkten när denna uppsats skrevs omogen och utvecklades snabbt vilket gör det svårt att svara på vilka tjänster som kommer vara framgångsrika i en svensk marknad. Trots detta pekar resultat på att kontakt som hushållsel och hemförsäkring hade låga ingångsbarriärer i marknaden att implementera, och vissa fastighetsägare har redan påbörjat denna process. Denna inkorporering har för dessa aktörer inneburit vissa nya intäktsströmmar, som dock är väldigt begränsade. Den andra slutsatsen är att de nya intäktsströmmar i framtiden kommer utlösa högre fastighetsvärderingar då fastigheter kommer bli en attraktivare tillgång att inneha. För att kunna identifiera efterfrågan och extrahera värdet ur en tjänsteförmedlingen, på ett framgångsrikt sätt, är en användarcentrerad strategi en viktig aspekt då transaktionerna som sker mellan fastighetsägaren och hyresgästen måste vara värdeskapande för alla inblandade aktörer.
Lira, Briceño Paúl. "Apuntes de finanzas operativas. Lo básico para saber operar una empresa financieramente [Capítulo 1]." Universidad Peruana de Ciencias Aplicadas (UPC), 2016. http://hdl.handle.net/10757/620833.
Повний текст джерелаThe purpose of the publication is to show the operational finance’s concepts and techniques to the readers. The author explains, over six chapters, the basic aspects of financial analysis, ratios and measures of value creation, leverage, financial planning, management and working capital financing.
Rose, Sebastian, and Daniel Kamali. "Does Property Segment Distribution Affect the Capital Structure of Real Estate Companies? : An Investigative Study of the Operational Risk within Different Property Segments and its Effect on the Debt Ratio in a Company." Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298079.
Повний текст джерелаFastighetssektorn är en kapitalintensiv bransch där kombinationen av skuld och eget kapital används för att finansiera fastighetsinvesteringar. Företag tenderar att öka belåningsgraden för att använda finansiell hävstång. Däremot på grund av att bankerna på senare år blivit mer restriktiva med sin utlåning och att de har olika sätt att bedöma risker på i olika fastighetsbolag, finn fog att förutsätta att belåningsgraden påverkas av fördelningen av fastighetssegment i ett företag. Baserat på tidigare forskning finns det många faktorer som kan påverka belåningsgraden (LTV) i ett företag, såsom storlek, lönsamhet, intäktsökning och kostnad för lånat kapital. Denna uppsats syftar till att undersöka dessa faktorer samt den operativa risk som kan synliggöras i fördelningen av fastighetssegment. Studien gjordes via ett kvantitativt tillvägagångssätt genom att undersöka de största fastighetsbolagen i alla Sveriges kommuner. 614 svenska fastighetsbolag undersöktes och analyserades i en OLS- regressionsmodell. Baserat på regressionen finns det tillräckligt med bevis i denna uppsats på att faktorer som storlek, lönsamhet, inkomsttillväxt och kostnad för lånat kapital har en betydande inverkan på LTV. Vidare hittades ingen allmän slutsats angående sambandet mellan fördelning av fastighetssegment och LTV i denna uppsats. Det finns dock bevis för att bostäder och småhusenheter påverkar LTV positivt medan industriella enheter påverkar LTV negativt.
Гавенко, Михайло Станіславович, та M. S. Havenko. "Формування конкурентної стратегії торговельного підприємства". Дисертація, Хмельницький національний університет, 2020. http://elar.khnu.km.ua/jspui/handle/123456789/10156.
Повний текст джерелаThe dissertation is devoted to substantiation of theoretical and methodical bases and development of practical recommendations on construction of competitive strategy of commercial enterprise which is directed on formation of dynamic competitive advantages in the process of maintenance of sustainable development of the enterprise. It is developed categorical and conceptual system of theory of competition, competitive strategies, and also it is proposed a conceptual approach to the formation of a competitive strategy based on a continuous innovation model. It is considered and critically analyzed the evolution of competition theory during the formation of economic systems and it is proved that Industry 4.0 radically transforms the main levers of the competitive environment, the social basis of competitive strategies and rivalry tools based on the intellectual component. Such vision enables the implementation of the main elements of Industry 4.0 in the activities of Ukrainian commercial enterprises, considering to their role in the chain of creation the value. It is defined the peculiarities of functioning of the mechanism of formation of dynamic competitive potential which provides speed of reaction to changes of market situation, strategic flexibility and readiness of the enterprise to changes. Based on the systematization of scientific approaches to the formation of competitive strategy it is proposed its continuous innovative model, the driving mechanism of which should be the strategic actions of the enterprise to improve the base of knowledge, and therefore the formation of sustainable and dynamic competitive advantages. These include: motivational mechanisms of competition; knowledge management systems and production of idea generation and innovation; marketing tools, scenarios of achieving the leadership; ensuring the interests of stakeholders; partnership strategies. It is improved the scientific and methodological approach to the formation of the conceptual pattern of strategic competitive potential of the retail enterprise, which, unlike other developments, includes: opportunities that have developed in the external environment; consumer potential; the potential of the internal environment of the enterprise, and aims to increase the competitive potential of the enterprise. Conceptual pattern of formation of strategic competitive potential is able not only to form and maintain competitive advantages, but also to produce innovation of values to ensure the continuity of development of commercial enterprise. It is highlighted and grounded the providing chain of system values, which is produced by the functional subsystems of trade enterprise and forms a unique trade offer. The suggested approach will provide a modern basis for formation of competitive strategy of commercial enterprise. It is identified and carried out the classification of impact factors on the formation of competitive strategies and culture of continuous innovative business modeling, which, unlike established, carves out exogenous (globalization processes, markets borders, the rate of technology development, the uncertainty of the environment); endogenous (dynamics and size of internal potential of trade enterprises, organizational knowledge and skills, the level interfirm uncertainty) and strategic actions of enterprises to improve the knowledge base and ensure the continuity of competitive strategy (partnership strategies, scenarios of achieving the leadership, ensuring the interests of stakeholders, co-competition, internal innovation processes ). Such approach allows the trade enterprises during the formation of competitive strategy to base on continuous innovation model. Received of further development of theorizing conceptual system of competitive strategy of the enterprise, namely: it is defined he essence of the concept of «competitive strategy», which, unlike established views, is considered as a dynamic model of enterprise behavior aimed at achieving sustainable competitiveness within the mission aimed at meeting consumer needs and ensuring economic, large-scale and image effects of the enterprise. It is developed interpretation of the essence of the concept of «value innovation», which, unlike others, is proposed to define as a strategy that ensures the ability of the system to produce market changes based on the balanced combination of exceptional utility, target prime cost, strategic pricing for continuous development in the competitive environment. Based on the monitoring of the stationery market of Ukraine, it is improved the scientific and methodological approach to qualitative assessment of the market situation, which, unlike other developings, is based on the definition of the system of integrated assessment of external competitive macro-potential, in terms of determinative exogenous factors and depends on their variation and the level of impact on the enterprise activity, which is allowed to assess external competitive potential that effects on the formation of competitive strategy of the retail trade enterprises. It is formed theoretical and methodical approach of determination of management efficiency of competitive position of commercial enterprise, which is based on the integrated assessment of the scale of competitive potential, strength of the competitive impact and effectiveness of strategic actions of competitors, and aims at transforming of strategic vision of the position of the enterprise on the market as a competitive strategy, and the stability of competitive advantages allows to determine in the context of the possibility of maintaining a competitive position in the long prospect. It is suggested a complex integrated indicator of the effectiveness of managing the competitive position of the retail trade enterprises based on the effectiveness of strategic actions and the strength of competitive influence. All it forms an analytical component of the development of competitive strategy, which will provide a mechanism of comparing the dynamism, flexibility of competitive advantages, to form a sustainable competitiveness within the corporate strategy aimed at meeting consumer needs and ensuring economic, scale and image-building effects of trade enterprise. It is acquired further resource approach to assessing the internal competitive potential of the retail trade enterprises, on the basis, unlike others, is laid the calculation of integrated indicator based on a balanced system of partial indicators for such components of potential as consumer, financial, customer, business processes, strategic and development potential, which allows to determine comprehensively the driving forces of competitive potential, to consider the synesthesia of priority competitive components of the retail trade enterprise with the goals of its corporate strategy and to provide a comparison between the existing state and the forecast level of competitive potential. It is suggested system-rational approach to realization of tactical competitive positioning in the direction of active strategic actions of the retail trade enterprise within general competitive strategy of combination. This approach was based on the assumption that the formation of chain store system of one enterprise should be based on the exponential increase of utility, effect of scale, accumulated experience and knowledge, increasing trust from interested person. This approach consists of a method of checking the closeness of synergies between stores that are part of the same enterprise and the model of determining the rational scale of the chain store system, built on the basis of the relative total revenue, which is produced by the chain store system. It is improved scientific and methodological approach to the formation of a competitive strategy of the retail trade enterprise of stationery, which consisits of combination of sequences of actions of intuitive reasoning scenarios of achieving the leadership at the market and, in contrast with the existing developings, takes into account the structuring of tactical competitive position, identifying alternative tactical tasks tactical which forms tactical competitive advantages and competitive tactics with subsequent iteration of the convergence of the probable and desired state of the system in terms of resource and time constraints. The results of the received researches and practical decision of issues to form the competitive strategy were reflected in practical activity of the enterprises of retail trade enterprises of stationery of Vinnytsia and Khmelnytskyi Chamber of Commerce and Industry.
Araújo, Iván Darío Gómez. "Análise modal operacional: métodos de identificação baseados em transmissibilidade." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-08042015-090459/.
Повний текст джерелаThis research aims to develop new alternatives of modal identification for structures under excitation in operation condition based on transmissibility functions. Latest methodologies based on transmissibility concepts have been arising as alternatives for modal parameter identification of structures. Modal parameter identification in this type methodology is input spectrum independent being an important advantage with respect previous frequency domain methods that assumes white noise excitation. Different alternatives of modal identification based on transmissibility functions are proposed in this work. The first of them proposes singular value decomposition on scalar transmissibility functions matrices with spectral density to estimate natural frequencies and vibration modes (PSDTM-SVD method). A second alternative proposes the concept of multivariable transmissibility functions with different transferring outputs for modal parameter identification. And the third alternative proposes an enhanced PSDTM-SVD method, which permits to identify modal damping. Computational tool for modal analysis is developed as a support for the numerical simulations of verification of modal identification methodologies proposed. Different numerical examples of a beam model subjected to colored noise excitations show that the proposed methods are capable of identifying modal parameters without the introduction of the additional frequencies due to the excitations used. Furthermore, data from an operational vibration bridge test were used to verify the methods.
Guimarães, José Osvaldo de Souza. "Computação evolutiva na resolução de equações diferenciais ordinárias não lineares no espaço de Hilbert." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-29062009-154349/.
Повний текст джерелаThis thesis shows a new method to get polynomial solutions to the initial value problems (IVP), with an error margin comparable to the consecrate numerical methods (NM), for both the function and its derivatives. The method works with differential equations (DEs) linear or not, beeing the developed tolls available until 4th order, whose can be expanded to higher orders. The solution is a polynomial high degree expression with coefficients expressed by the ratio between two integers. The method behaves efficiently even in some cases that NM cannot get started. The resolutions are gotten considering that, the solution space is a Hilbert space, equipped with a complete set basis of Legendre Polynomials. Due the method here developed, the errors majoratives for the function and its derivatives are found analytically by a matrix calculus, also derived in this thesis. Beside all analytical foundation, a software (SAM) was developed to automate the whole process, joining all the tasks involved in the search for solutions to the IVP. This thesis proposes, verifies and validates a new error criterion, which takes in account simultaneously the local and global errors. As sub-products of the results described before, also integrated to the SAM, the following achievements should be highlighted: (1) An objective criterion to analyze the quality of any NM, despite of the knowledge of its algorithm; (2) A tool for a polynomial approximation, of high precision, for functions whose square is integrable in a given limited domain, with an errors majorative; (3) A tool-kit for a generically transpose (linear or not) of the IVPs domain and form, taking into account its derivatives, until the 4th order; (4) The generic matrices for integration and differentiation for all the polynomial basis of the Hilbert space.
Brown, Nils W. O. "Managing high environmental performance? : Applying life cycle approaches and environmental certification tools in the building and real estate sectors." Doctoral thesis, KTH, Miljöstrategisk analys (fms), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201614.
Повний текст джерелаQC 20170210
Rannow, Michael. "Fail Operational Controls for an Independent Metering Valve." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200685.
Повний текст джерелаBellos, Ioannis. "Designing service operations: value (economic and environmental) implications." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44831.
Повний текст джерелаGambell, Anthony C. (Anthony Charles) 1976. "Operations improvements through non=value-added step reduction." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/34789.
Повний текст джерелаIncludes bibliographical references (p. 63-64).
This thesis demonstrates how factories can use the Value Stream Mapping method to reduce both direct and indirect labor cost components through a non-value-added step reduction. The principal objective of this internship was to identify instances of non-value-added work in a product value stream and implement actions to reduce or eliminate it. Operations improvements included actions to eliminate waste through bottleneck utilization improvements, paperwork reduction, planning tool development and safety stock level calculation. From a leadership perspective, this thesis explores the challenges of cross-cultural and second-language change management.
by Anthony C. Gambell.
S.M.
M.B.A.
Zuñiga, Alcaraz Catya Atziry. "Causal models for performance evaluation of added-value operations." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/96320.
Повний текст джерелаThe present PhD thesis report has been elaborated as a compendium of publications, in which diverse Causal Models have been developed to assist in the decision making process using a cause-effect relationship approach inherent in the system. A brief description of the items included in the doctoral thesis. The document is organized in four different parts. First, the Chapter called “Basic Notions” introduces the basic notions and a general perspective on the systems approach. Particular interest has been placed in the Discrete-Event Systems approach, presenting the main features of this formalism. The main theory behind the Coloured Petri Nets approach is presented in Section 2.1.1 Different case studies are provided from Chapters 3 to 5. Chapter 3 presents the work named “A CD&CR causal model based on path shortening/path stretching techniques”, which has been accepted for publication in the Journal Transportation Research Part C: Emerging Technologies. This work depicts a groundbreaking approach to alleviate the airspace congestion and to deal with the implications for the planning, design, and management of Air Traffic Control operations. Particular interest has been placed Terminal Manoeuvring Area (TMA) where the traffic conditions impose to take time-critical decisions. Therefore, an appropriate management of arrival operations could alleviate congestion which impacts directly in capacity and efficiency of the overall Air Traffic Management operations. To evaluate the performance of the the resolution strategy to avoid non-efficient procedures, diverse scenarios have been tasted in a busy traffic period at Gran Canaria’s airport. The result obtain contribute with the planning and management of Air Traffic Control operations to increase the overall predictability of the Air traffic, with benefit to airlines and airports, among others. Chapter 4 corresponds to the article "Revisiting the pallet loading problem using a discrete event system approach to minimise logistic costs” published in the International Journal of Production Research (IJPR). This work presents an innovative and challenging modelling approach to optimize the space and distribution of boxes into a pallet, supporting the inherent box diversity (heterogeneous palletizing problems) of present production and distribution logistic systems. The space utilization is modelled as squares that can be fragmentise and de-fragmentise. In a first approach, the state space analysis is performed to evaluate different optimal configurations to load the maximum number of boxes on a rectangular pallet. The second approach implements heuristics to show that acceptable occupancy results can be obtained without requiring the exhaustive evaluation of the different feasible combination. Chapter 5 introduces the work "Integrating and sequencing flows in terminal maneuvering area by evolutionary algorithms" in proceeding of the IEEE/AIAA en el Digital Avionics Systems Conference (DASC), 2011. This work has received three mentions: Best student paper award; Best paper in the ATM Capacity Improvements track award; y Best paper of session award which confirm the transcendence and implications of such approach. This chapter presents a new approach to optimize a set of aircraft planned to land at a given airport. It is proposed to merge the incoming flows from different routes by mean of speed and path changes. Those changes aim to remove conflicts at merging points and to maintain separation of aircraft following the same route link according to their wake turbulence constraint. The optimization criteria are based on the minimum deviation from the initial path planning. This algorithm has been successfully applied to Gran Canaria airport in Spain with real traffic demand samples for which conflict free flow merging is produced smoothly with optimal runway feeding. Finally, Chapter 5 contains the overall conclusions, future work, summary of contributions and complementary publications on the author. The work presented in annex called “Causal model to sequence and merge 4DT flows in TMA” summarizes the development of a decision support algorithm to tackle the merging and sequencing problem within the Terminal Manoeuvring Area (TMA) sector. The algorithm works with multiple landing traffic flows that share the airspace in the same time window. A flexible terminal area route structure is proposed; it eliminates conflicts within the Standard Terminal Arrival (STAR) while traffic is merged prior converging on to the final approach. As a first instance the first come first serve (FCFS) sequence policy will be tasted and later on the sequence will be altered by means of the Constrained Position Shifting (CPS) algorithm. Gran Canaria STAR is used to evaluate the benefits of the proposed model under synthetic traffic; and to determine the spacing buffers the ICAO Separation minima (ICAO DOC-4444) criteria is used as on current methodology. Finally, in Annex, the paper “A TMA 4DT CD/CR causal model based in path shortening/path stretching techniques” introduces the basic ideas behind a discrete event model for Conflict Detection and Conflict Resolution algorithm in a TMA 4D trajectory scenario in presented which focuses mainly on the arrival phase. This model brings a very interesting knowledge about the events that take place in the management of 4DT and their interactions in Gran Canaria TMA to remove non-effective operations, avoid delay propagation between arrivals and optimize the occupancy of the runway. The causal model developed considers different alternative predefined turning points for each flight evaluating path shortening/path stretching of all trajectories upwards the merging point in a TMA.
Capps, Tyler Lee. "Refurbishment value stream optimization." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111483.
Повний текст джерелаThesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, in conjunction with the Leaders for Global Operations Program at MIT, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 55).
One of Company X's many services is to refurbish systems at regular intervals during their use. Quick turnaround times are of the utmost importance both to keep Company X's costs low and to ensure the systems are returned to perform their services in the field as rapidly as possible. This research had two distinct elements in service to accelerated turnaround times: 1) Improving inventory management practices to align with the need for replacements for failed parts to reduce cycle times, and 2) Diagnosing the reasons for and developing mitigations against failures in the blind mating of two connectors. Regarding the first element of the research performed, Company X hypothesized that improving the inventory management system would yield shorter cycle times. In order to test this hypothesis, part failure and inventory histories needed to be compared to confirm if parts were not in stock at the time of failure. A model was developed to analyze both of these history files but the poor quality of the data precluded accurate conclusions from being drawn. Once the data input methods have controls placed on them, the model will serve to accurately represent the failure rates and types of failures of all parts, allowing for proper stocking of inventory needed to service these failures. An investigation of process failure rates and their impact on cycle time was also conducted. This analysis included quantifying how many times each operation was performed, at which steps failures occurred or were noticed most, and how much time was required to complete each operation and service each failure. This analysis ultimately yielded the generation of a diagnostic tool with a flexibility that allowed simultaneous analysis to be performed on over 1,100 operations. One of the key insights generated by using this tool was that the majority of failures are found at late-stage inspections, highlighting that improving the thoroughness of early-stage inspections could prevent the necessity of substantial rework to remedy the issues found late in the process. With respect to the second element of the research performed, an understanding of why and how connectors were failing was sought out. Through observing the process and analyzing the historical data detailing the connector's failure modes, multiple explanations for the failures and related solutions resulted. The first failure mode was loose connections, for which a tool was shortened to increase the operator's ease of accessing the connector to properly apply torque and secure the connection. The other modes of failure were caused due to connector misalignment, for which a bracket was redesigned as an auto-alignment feature to aid in the mating process, and operator deviations from the work instructions were addressed as they pertained to connector failures. The combination of these actions are expected to yield an annual savings of $100,000, net of costs.
by Tyler Lee Capps.
M.B.A.
S.M.