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Theron, Jenny. "The commodification and commercialisation of peace operations and security co-operations : a case study of Operation Rachel /." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/2505.
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Thesis (MA (Political Science. International Studies))--Stellenbosch University, 2005.Peace operations and security co-operations are expensive. Even though there are a variety of factors that influences peace agents when they consider approving a new, expanding an existing, or closing down a peace operation or security co-operation, one of these factors is the cost factor. If we were to isolate the cost factor it would follow that a reduction in the cost of peace operations and security co-operations, are likely to contribute to peace agents being more willing to approve new, expand existing or to give existing missions more time to consolidate before closing them down. There are a variety of ways how the cost of peace operations or security co-operations can be lowered. This thesis suggests an alliance with the private sector in the form of corporate sponsorships. In short, that peace operations and security co-operations be commodified and commercialised. This would entail introducing corporate sponsorship of some of the commodities that are used in peace operations and security co-operations, followed by the corporate sponsor using their involvement in the peace operation or security co-operation to their commercial advantage. The commodification and commercialisation of peace operations and security co-operations should result in the relevant operations and co-operations benefiting in a cost-effective as well as practical effectiveness sense, whereas the private sponsor should benefit in either or both a financial (profit) or an image-making sense. The psychological theory supporting such an argument is that of social identity theory. This theory explains how positive connotations made with peacemaking in warlike conditions will motivate industries to use this opportunity to show that their products can succeed in such demanding circumstances. Accordingly, social identity theory provides us with evidence as to how the commercialisation and commodification of peace operations and security co-operations can succeed. We also support our argument by providing a case study, Operation Rachel, which serves as a successful example of an operation that was (partially) commodified and commercialised. Operation Rachel, which can be seen as either or both a peace operation and security co-operation, shows that in the case of security co-operations, these operations should be presented as peace operations during the commodification and commercialisation processes.
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Puikko, J. (Janne). "An exact management method for demand driven, industrial operations." Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514261879.
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The framing into demand driven operations is because of the operations research modelling approach. The modelling approach requires continuous regressors and an independent response factor. The demand as an operating factor is considered as independent response factor in relation to the continuous regressors. The method validation is made along several longitudinal case studies to cover local, global and international industrial operations. The examined operational scope is from continuous operations to one-off production. Concerning scheduling, these examined demand driven, industrial operations are considered as open and dynamic, flow shop or job-shop operations.
The examined managerial scope is from local work management to global industrial operations management. The theoretical framework of this study is based on operations management, productivity and controllability engineering. The strategical target is to improve productivity. The operational target setting is based on linear goal programming, streamlined demand driven material flow and specified operating factors according to this study, Forrester effect diagnostics and replenishment models.
The engineering of strategical target into exact operational schedule as a task target is hard to accomplish, because of the combinatorial dynamic job-shop problem. The purpose of this study is to simplify this managerial task. These study operating factors are the heart in constructing a Decision Support System for the examined operations, alongside the method’s product flow diagnostics.
This operations management method consists of the operating factors, specified in this study and these specified factors’ use in constructing a Decision Support System, by engineering current operations management system. The construct consist two parts. Firstly, the exact operational target alignment along this method diagnostics and secondly, the control mechanism according to this operational linear target. The expected managerial benefit is in productivity improvement. The practical benefits are in savings in logistics costs and improvement in customer service, due to shorten lead time and exacting delivery.
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Dong, Yan 1963. "Modeling rail freight operations under different operating strategies." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10200.
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THOME, ANTONIO MARCIO TAVARES. "SALES AND OPERATIONS PLANNING IMPACT ON MANUFACTURING OPERATIONAL PERFORMANCE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=23836@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
Esta tese aborda o tema de Planejamento de Vendas e Operações, designado pelo acrônimo inglês de SeOP (Sales and Operations Planning). Trata-se de um campo recente em Gerência de Operações. SeOP é definido como um processo interfuncional e integrado de planejamento tático e como um conjunto coeso de práticas gerenciais que unificam diferentes planos de negócios (vendas, marketing, desenvolvimento de novos produtos, manufatura, compras e finanças) em um conjunto de planos integrados internamente e na cadeia de suprimentos, com a finalidade de criar valor e impacto no desempenho das empresas. Objetiva equilibrar oferta e demanda em nível de produtos e famílias de produtos, com um horizonte de planejamento que coincide com o ciclo de planejamento estratégico dos negócios. A eficiência do processo é medida e avaliada para melhoria continua. Compreende um conjunto coeso de práticas gerenciais, direcionado a incentivar o alinhamento horizontal (entre funções) e vertical (do plano de negócios a operações), na empresa e na cadeia de suprimentos. O objetivo da tese é duplo: proceder a uma revisão sistemática e abrangente da literatura em SeOP; avaliar o impacto dos processos e das práticas de SeOP no desempenho operacional da manufatura. A revisão bibliográfica sobre SeOP foi feita a partir das bases de dados eletrônicas EBSCO, Emerald e SCIENDIRECT. Ao todo 271 resumos e 55 textos completos foram revistos e classificados em um quadro conceitual de referência, que relaciona variáveis contextuais, de entrada (inputs), objetivos, estruturas e processos, resultados intermediários e resultados finais do SeOP. Foi constatada a ausência de sínteses anteriores da literatura sobre o tema e uma grande disparidade de conceitos e modelos de maturidade do SeOP, que impossibilitaram a análise estatística dos resultados publicados (meta-análise). Uma síntese sistematizada da literatura foi apresentada. Notou-se igualmente que existem poucos artigos científicos rigorosos que demonstrem o impacto das práticas de S&OP no desempenho das empresas. Ainda mais raros são os estudos empíricos baseados em teorias de gerência de operações. A verificação empírica do impacto das práticas de SeOP interno e de integração na cadeia de suprimentos com fornecedores e com clientes foi realizada com modelos de equações estruturais e de regressão múltipla passo a passo. A base de dados da Pesquisa Internacional de Estratégia da Manufatura (IMSS-V), reagrupando 725 empresas de 34 países foi utilizada na análise. A formulação dos modelos baseou-se na teoria de contingência estrutural. O efeito do SeOP (medido pelo coeficiente de regressão) no desempenho operacional da manufatura foi positivo e consistente para as dimensões da qualidade, flexibilidade e entregas, situando-se no intervalo entre 0,26 e 0,36. Contatou-se igualmente que a integração com fornecedores e as tecnologias de processo na manufatura são moderadoras do impacto no desempenho em todas as dimensões de desempenho e que a tecnologia de produtos modera o desempenho em termos de qualidade. Conclui-se que há uma necessidade de aprofundar a agenda de pesquisas com estudos empíricos baseados em teorias de gerência de operações na manufatura em diferentes contextos e indústrias, de estender e aprofundar a análise do SeOP na cadeia de suprimento, assim como de conduzir estudos de casos. A principal implicação prática do estudo resulta dos fatores contingenciais do impacto do SeOP no desempenho. A indústria ganharia a conduzir processos e práticas de SeOP de forma concomitante com a integração com fornecedores na cadeia de suprimento e a adoção de tecnologias de processo e de produtos que sejam adequadas ao ambiente no qual atua.
Sales and Operations Planning (SandOP) is a new and growing research field in Operations Management. The thesis intends to: (i) provide a comprehensive research synthesis of the extant literature on SandOP; and (ii) explore SandOP impact on manufacturing operational performance dimensions of quality, delivery and flexibility, informed by structural contingency theory. A synthesis framework was proposed. Due to disparate concepts and measurements, the field is not yet ripe for meta analysis. There is also a paucity of rigorous empirical research in the impact of SandOP on manufacturing operational performance, anchored in Operations Management theories. Data from 725 metal products and machinery manufacturers (ISIC 3.1, code 28-35) in 34 countries from the fifth round of the International Manufacturing Strategy Survey was used for hypotheses tests. Scales were validated with confirmatory factor analysis and analyzed with stepwise multiple regression. SandOP effect size on quality, delivery and flexibility was on the 0.26 - 0.36 range, after controlling for economic development, market dynamics and firm size. Supply Chain integration with suppliers and manufacturing process technology moderate SandOP impact on all three performance dimensions. Product technology moderates quality but not delivery or flexibility. Misfit of process technology, cross functional team work and product technology adversely affect performance. Practitioners should simultaneously pursue SandOP implementations, integration with suppliers and use of adequate technology to boost performance. Further research should focus on theory validation, case studies and survey research on SandOP.
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Ben-Zvi, Noa. "(OR)² : operations research applied to operating room supply chain." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91096.
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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014. In conjunction with the Leaders for Global Operations Program at MIT.Thesis: M.B.A., Massachusetts Institute of Technology, Sloan School of Management, 2014. In conjunction with the Leaders for Global Operations Program at MIT.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 63).
Massachusetts General Hospital (MGH) is ranked as the top hospital in New England and second nation-wide. It is also the largest hospital in New England; it uses an average of 58 operating rooms, where approximately 150 surgical procedures are performed daily. Management of surgical supplies is a critical component of the processes supporting this infrastructure. Specifically, ensuring the right equipment and supplies are available at the right time is critical for the efficiency and quality outcomes of each of the procedures. The materials management group handles over 10,000 unique items, purchased from more than 400 vendors. The majority (60-70%) of disposable supplies are ordered through Owens & Minor, a medical and surgical supplies distributor. The supplies are stored in multiple locations throughout the hospital, including two central locations as well as carts and cabinets on the surgical floors and in the operating rooms. The work described in this thesis focuses on the inventory management of disposable surgical supplies, where the current system design has inefficiencies in the inventory levels and location of items. Using a data-driven approach, based on historical demand, we calculate base stock levels by item that maintain three days of inventory at a 99 percent service level. In addition, we suggest a methodology to support decisions on inventory locations of the different items. Implementation of the recommended changes is estimated to result in savings of 30-40% in inventory levels (and space), corresponding to a one time saving of $700,000-$900,000, depending on the implementation scenario. In addition, the reduction in inventory levels can be translated to future savings in inventory holding costs at an estimated 40% rate, leading to a saving of roughly $300,000 annually.
by Noa Ben-Zvi.
S.M.
M.B.A.
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Stuart, Kari Louise. "Using operations research methodologies to improve operating theatre scheduling." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/48697/1/Kari_Stuart_Thesis.pdf.
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A hospital consists of a number of wards, units and departments that provide a variety of medical services and interact on a day-to-day basis. Nearly every department within a hospital schedules patients for the operating theatre (OT) and most wards receive patients from the OT following post-operative recovery. Because of the interrelationships between units, disruptions and cancellations within the OT can have a flow-on effect to the rest of the hospital. This often results in dissatisfied patients, nurses and doctors, escalating waiting lists, inefficient resource usage and undesirable waiting times. The objective of this study is to use Operational Research methodologies to enhance the performance of the operating theatre by improving elective patient planning using robust scheduling and improving the overall responsiveness to emergency patients by solving the disruption management and rescheduling problem. OT scheduling considers two types of patients: elective and emergency. Elective patients are selected from a waiting list and scheduled in advance based on resource availability and a set of objectives. This type of scheduling is referred to as ‘offline scheduling’. Disruptions to this schedule can occur for various reasons including variations in length of treatment, equipment restrictions or breakdown, unforeseen delays and the arrival of emergency patients, which may compete for resources. Emergency patients consist of acute patients requiring surgical intervention or in-patients whose conditions have deteriorated. These may or may not be urgent and are triaged accordingly. Most hospitals reserve theatres for emergency cases, but when these or other resources are unavailable, disruptions to the elective schedule result, such as delays in surgery start time, elective surgery cancellations or transfers to another institution. Scheduling of emergency patients and the handling of schedule disruptions is an ‘online’ process typically handled by OT staff. This means that decisions are made ‘on the spot’ in a ‘real-time’ environment. There are three key stages to this study: (1) Analyse the performance of the operating theatre department using simulation. Simulation is used as a decision support tool and involves changing system parameters and elective scheduling policies and observing the effect on the system’s performance measures; (2) Improve viability of elective schedules making offline schedules more robust to differences between expected treatment times and actual treatment times, using robust scheduling techniques. This will improve the access to care and the responsiveness to emergency patients; (3) Address the disruption management and rescheduling problem (which incorporates emergency arrivals) using innovative robust reactive scheduling techniques. The robust schedule will form the baseline schedule for the online robust reactive scheduling model.
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Mitchell, Mark E. "Strategic leverage : information operations and special operations forces." Thesis, Monterey, California: Naval Postgraduate School, 1999. http://hdl.handle.net/10945/13631.
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Special Operations Forces (SOF) have assumed a unique and expanded role as a strategic asset of the United States. The conjunction of changing political and security environments and new technologies present both challenges and opportunities for SOF. Special Operations Forces provide the National Command Authority (NCA) a variety of unique capabilities and expanded options for achieving strategic goals at minimum costs. The recent drawdown has placed even more value on the capabilities and leverage provided by SOF. Additionally the rapid pace of technological change - the "information revolution" - has opened the door to a potential "Revolution in Military Affairs" (RMA). New approaches to warfare, like Information Operations (IO), are beginning to emerge from the RMA. Information operations, like SOF, can also provide a means to leverage limited resources. At the strategic level, SOF can provide support for IO; at the tactical level, IO can support of special operations (SO). Each has distinct implications for SOF. In either case, the object of the supporting operation is to generate or expand a window of opportunity for the supported operation. Separately, both SO and IO can provide economy of force. Properly employed, this leverage is multiplied and offers a tremendous strategic asset.
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Ellison, Joel P., and Daniel G. Hodermarsky. "Conventional and special operations forces integration at the operational level." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/27824.
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Combat operations in Afghanistan and Iraq demonstrated that different types of military forces must be integrated to effectively counter evolving threats. Senior Army leaders have identified the need to retain the ability to effectively integrate conventional and special operations forces. Integration should not aim to combine forces to the point they are indistinguishable, but should maximize the effects of each forces unique capabilities. This thesis concludes that in the future, conventional and special operations forces integration should be addressed with the following tenets integration should be determined by the task, not the unit integrated operations require a dedicated staff at the joint task force level the supported/supporting command relationship is most appropriate and should be determined by task It also proposes a methodology that enables the identification of task interdependencies between conventional forces (CF) and special operations forces (SOF). Identifying these interdependencies informs staffs and commanders where integrated operations are best conducted. The design structure matrix, an approach used in the business and systems engineering sectors, provides a basis for the methodology. The goal of this campaign planning tool is cross-force synergy emerging from utilization of the unique capabilities of CF and SOF for maximum gains.
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Hallmann, Frank. "Optimizing operational and logistical planning in a theater of operations." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Jun/09Jun%5FHallmann.pdf.
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Thesis (M.S. in Operations Research)--Naval Postgraduate School, June 2009.Thesis Advisor(s): Brown, Gerald G. "June 2009." Description based on title screen as viewed on July 10, 2009. Author(s) subject terms: Optimization, Navy Logistics, Operational Planning , Navy Mission Planner, Combat Logistic Force Planner, Ship scheduling, Optimization decision aid, Integer Programming, Mathematical Programming. Includes bibliographical references (p. 71-72). Also available in print.
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Rice, Ian C. "Urban operations." Thesis, Monterey, California. Naval Postgraduate School, 2003. http://hdl.handle.net/10945/1037.
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This thesis examines military performance in both urban and traditional non-urban environments. Cases used in this study are German operations on the Russian front, Israeli operations during the Yom Kippur War, and U.S. Marine operations in South Vietnam. This thesis establishes a framework for analysis consisting of six factors. These include environment, time, informational aspects of military operations, application of existing technology, intangible human factors, and the decisionmaking of both political and military leaders. Analysis of the three cases points to a number of common trends including, shortcomings when units enter in the urban environment. We note a lack of urban operations training, an increase in time to accomplish tasks, a resistance to operate at night, difficulty processing and communicating information, and micromanagement of city fighting by political and military leaders who typically refrain from such management during non-urban combat. Results of this study suggest a need to incorporate consideration of our six factors into current doctrine.US Army (USA) author.
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Romano, Stephen. "Definition of operating guidelines for nitrification from historical operations records." Honors in the Major Thesis, University of Central Florida, 1996. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/156.
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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.Bachelors
Engineering
Civil and Environmental Engineering
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Sundaramurthy, Sathya Chandran. "An Anthropological Study of Security Operations Centers to Improve Operational Efficiency." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6958.
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Security Operation Centers (SOCs) have become an integral component of business organizations all over the world. The concept of a SOC has existed for a few years now yet there is no systematic study documenting the occurrences of their operations. A lack of documented operational knowledge makes it a challenge for security researchers interested in improving operational efficiency through algorithms, tools, and processes.
SOC environments operate under a secrecy culture as a result of which researchers are not trusted by analysts and their managers. This lack of trust leads to only superficial information through methods such as interviews. Moreover, security analysts perform their tasks using hunches that are difficult to articulate and express to an interviewing researcher. This knowledge is called tacit knowledge. Capturing rich tacit knowledge is crucial for researchers to build useful and usable operational tools.
This thesis proposes use of long-term participant observation from cultural anthropology as a research methodology for security researchers to study SOC analysts and their managers. Over a period of four and a half years seven students in Computer Science, graduate and undergraduate, were trained by an anthropologist in using fieldwork techniques to study humans. They then took jobs as security analysts at five different SOCs belonging to academia and corporations.
We made unexpected discoveries in pursuit of tacit operational knowledge. The first discovery was identification of human capital mismanagement of analysts as the root cause of analyst burnout. Specifically, a vicious cycle among analyst skills, empowerment, creativity, and growth causes analysts to lose morale and eventually leave the job. In fact burnout is a manifestation of number of tensions that are inherent in a security operations setting. This leads to our second discovery of recognizing and managing contradictions as a prerequisite for SOC innovation. Failure to acknowledge them can lead to dysfunctions in a SOC such as analyst burnout. Informed by the findings regarding the social aspects of SOC operations we attained the intended goal of capturing tacit operational knowledge. The thesis documents our experience in tacit knowledge capture through design of a framework for detecting phishing emails in near real-time.
Studying human aspects of security operations and cyber-security in general must be done within a social and organizational context. This thesis proposes long-term participant observation of practitioners and end-users as a viable methodology to conduct cyber-security research in general.
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Dickmann, John Q. "Operational flexibility on complex enterprises : case studies from recent military operations." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/52785.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Engineering Systems Division, June 2009.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
"May 2009." Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references.
An emerging requirement for 21st century enterprises is operational flexibility, a requirement particularly important for the U. S. Department of Defense (DoD). To achieve flexibility, most practice and research emphasizes process improvement, robust collaboration and "flattened" or "networked" organizations. Lateral alignment has also been proposed as a means to enable flexibility. Missing from these approaches is an appreciation and understanding of the role of architecture and hierarchy as well how to apply these ideas at the enterprise level of organization. The DoD has embraced information technology as one means to achieve flexibility via these methods. Within DoD the Air Force is a uniquely flexible combat arm, but it has proven particularly difficult to integrate air power at the level of inter-service (Joint) military operations in order to leverage this flexibility. Kometer (ESD Ph.D., 2005) used a complex, large-scale, interconnected, open, socio-technical (CLIOS) systems analysis to examine command and control of the Combat Air Operations System (CAOS), proposing new command and control concepts to gain flexibility. This thesis extends Kometer's research by using a qualitative architectural analysis to explore the twin ideas of hierarchy and laterality in enabling flexibility. We define lateral interactions as those within the same layer of an enterprise hierarchy. Lateral interactions enable formalized collaboration among peer entities, which can enable more operational alternatives and make these alternatives executable on more responsive timelines than possible with classic hierarchical structures.
(cont.) We identify previously unexamined trends in the operational architecture of combat air operations that are related to flexibility and examine the trade-offs between flexibility and other enterprise properties. We find a pattern of increasing enterprise laterality from beginning to end of the case studies and an association between upper- and lower-echelon laterality, overall system flexibility and strategic coherence. To enrich the analytical framework, an analogous example of flexibility in the New England Patriots football team is developed and presented. We find that our architecture framework provides a rich addition to existing empirical research on combat air power and addresses difficult socio-technical analysis issues in a way that complements other approaches. We also find that traditional perspectives on flexibility, efficiency and effectiveness trade-offs are strongly dependent on hierarchical level of analysis. Our framework lays a foundation for rigorous holistic enterprise design efforts in the area of military operations and other socio-technical enterprises such as health care, disaster relief and large-scale defense acquisition.
by John Q. Dickmann, Jr.
Ph.D.
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Bilsel, Ragip Ufuk Ravindran A. "Disruption and operational risk quantification and mitigation models for outsourcing operations." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/PSUonlyIndex/ETD-4546/index.html.
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SHAVER, KAY A. "Activity-based Evaluation of Operations Management within Service Operations Organization." NCSU, 1998. http://www.lib.ncsu.edu/theses/available/etd-19980408-101235.
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SHAVER, KAY ALBRIGHT. Activity-based Evaluation of Operations Management within Service Operations Organization. (Under the direction of John Dutton.) The purpose of this study is to use historical cross-sectional data including order characteristics to predict the time requirements of the indirect activity of managing. The subject of the study is the Operations Manager, who manages the supervision of engineering and installation of orders. Predictions of time estimates for the Operations Manager will provide information for staffing and workforce planning of the indirect activities required to manage the forecasted order workload. The research includes a pilot survey of Operations Managers in three regions and a final empirical study, which includes the entire Service Organization?s Operations Manager population. Using regression analysis, the study evaluates the factors noted in the pilot survey as important to the Operations Managers. Consideration is given to order characteristics, such as size, customer relationships, schedule changes, interval, Operations Manager assigned. Consideration is also given to general characteristics, such as seasonal effects, concurrent orders, experienced installers available, and inventory levels. The analysis reveals that category of work, size of the order as measured by number of frames, seasonal impacts, the Operations Manager assigned, customer relationships, and the effort required to underspend the budget are key predictors of the time required to manage the supervision of the engineering and installation of orders. The results indicate interval, inventory, schedule changes and experienced installers available are not significant indicators of this indirect order activity.
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Bustamante, George A. "Analyzing asymmetric operations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA381700.
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MacLeod, Stefan Scott. "Reengineering construction operations." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12127.
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Suchá, Ivana. "Operations Acceptance Management." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-16700.
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This paper examines the process of Operations Acceptance Management, whose main task is to control Operations Acceptance Tests (OAT). In the first part the author focuses on the theoretical ground for the problem in the context of ITSM best practices framework ITIL. Benefits, process pitfalls and possibilities for automation are discussed in this part. The second part contains a case study of DHL IT Services (Prague), where a solution optimizing the overall workflow was implemented using simple web applications. The author of this paper was personally involved in the described project.
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Schneider, Scarlett K. "Tennis operations manual." Master's thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020125/.
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Robinson, Chris. "Game operations manual." Master's thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-04272010-020208/.
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Sabwa, Jean-Marie. "Modeling of Spaza shop operations using soft and hard operational research techniques." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/7698.
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Includes bibliographical references (leaves 90-93).Globalization has transformed the world into a big village in which the rich are becoming richer and the poor getting poorer. In the commercial world the trend is for big business to buy out the smaller companies and consequently get bigger. Yet it is arguable that small businesses have assisted in providing much needed services to small communities that occupy informal settlements and exist on or below the poverty datum line. The South African government has amongst its main objectives the alleviation of poverty and the improvement of life in previously disadvantaged communities. The government has allowed the micro-enterprises and small businesses in the informal sector to thrive and in this sector are Spaza shops that supply a wide range of grocery commodities to informal settlements. This paper is about an application framework of soft and hard operational research (OR) techniques used to address the performance of micro-enterprises with Spaza shops in Western Cape as a specific case study. The techniques include Strategic Options Development and Analysis (SODA) using Causal mapping and Soft System Methodology (SSM). These were chosen because of their suitability to understand performance problems faced by Spaza shops owners and find ways of improving the current situation by modelling the intervention of stakeholders. The improvement of Spaza shop businesses is a matter for all stakeholders. Causal mapping, helped to identify and structure the multiple conflicting aspects of Spaza shops business. Soft System Methodology made it possible to conceptualize the intervention model based on the rich picture and root definitions for relevant world-views and see what changes are culturally feasible and systematically desirable. Computer simulations were used to help design and test performance measurement indicators for the Spaza shops so as to enable decision-makers to choose the optimal strategy. Statistical analysis came into account to enable us to capture the seasonality and bring up clustering patterns.
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Bower, Mark E. "Restructuring military operations at NPS to better manage base operations support." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA306667.
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Riley, Craig Allen. "The role of special operations forces in operations against theater missiles /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA312387.
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Thesis (M.A. in National Security Affairs) Naval Postgraduate School, March 1996.Thesis advisor(s): James J. Wirtz. "March 1996." Includes bibliographical references (p. 163). Also available online.
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Arnet, Nora Marie Lundevall. "LNG Bunkering Operations : Establish probabilistic safety distances for LNG bunkering operations." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26576.
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The environmental and economical advantages of using LNG as marine fuel have been recognized by the industry. In response to increasing demand, construction of LNG bunkering infrastructure is under rapid development. Several ports are preparing to supply LNG, but uncertainties concerning the bunkering process and operational safety still exist. Recently, much work has been done to standardize LNG bunkering solutions, including a launch of an ISO guideline and a Recommended Practice (RP) by DNV. One of the main topics of these documents and of international discussion is operational safety and the establishment of safety zones around the operations. High risk is particularly associated with “vulnerable objects” (i.e. third parties, like ferry passengers) in the vicinity of the bunkering operation. Ferries are currently the main LNG fuel consumer and some ferries have passengers on at all times. Current regulations do not allow passenger presence during bunkering. This limitation reduces the functionality and competitiveness of LNG, and has proved to be problematic for ferry companies. The goal of this thesis is to establish probabilistic safety zones for a generic ship-to-ship (STS) bunkering case. Threats to vulnerable objects and the associated likelihood, in the event of an LNG leak, is identified. The specific purpose is to determine whether acceptable safety levels for passengers are present onboard a ferry performing LNG bunkering operations. This study will assess the risks involved and calculate safety zones through an established probabilistic approach, known as Quantitative Risk Assessment (QRA) methodology. This method includes frequency and consequence calculations of possible Loss of Containment (LOC) scenarios. The acceptable risk level for third parties per bunkering operation is assessed against the widely used criteria of 10E-06.Based on the contour results provided by PHASTRisk (the DNV risk analysis software tool), it is clearly demonstrated that passenger safety can be maintained during bunkering operations. This study concludes that there is no unreasoning risk in allowing passenger presence during bunkering. Passenger safety issues should consequently not limit the application of LNG as fuel for ferries.
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Riley, Craig Allen. "The Role of Special Operations Forces in Operations Against Theater Missiles." Thesis, Monterey, California. Naval Postgraduate School, 1995. http://hdl.handle.net/10945/44388.
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Approved for public release; distribution is unlimited.The U.S. military has never been able to prevent theater missiles (TMs) from being launched at U.S. and Allied or Coalition forces and citizens. Post-war analysis of interdiction efforts during World War II and the Persian Gulf War could not identify a single instance where either a German V weapon or an Iraqi SCUD missile was destroyed before launch. During the Cuban Missile Crisis, the best estimate that the Air Force could provide the National Command Authority was that ninety percent of the Soviet missiles in Cuba would be destroyed by an airstrike. To correct this deficiency, the military developed joint theater missile defense (JTMD) doctrine. This doctrine attempts to integrate synergistically all U.S. military assets and capabilities. However, this doctrine does not fully integrate Special Operations Forces (SOF) into attack operations against TMs. Additionally, the joint tactics, techniques, and procedures (JTTPs) needed to implement this doctrine have not been developed. The integration of SOF's capability to conduct pre-strike and post-strike reconnaissance, critical material recovery operations and target acquisition tasks can immediately improve JTMD capabilities.
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Chacko, Josey. "Sustainability in Disaster Operations Management and Planning: An Operations Management Perspective." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/71759.
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Advancing the state of disaster operations planning has significant implications given the devastating impress of disasters. Operations management techniques have in the past been shown to advance disaster-planning efforts; in particular, much progress can be noted in its application in the advancement of short-term recovery operations such as humanitarian logistics. However, limited emphasis has been placed on the long-term development scope of disaster operations. This dissertation argues the need for a fundamental shift in the motivation of archetypal disaster planning models, from disaster planning modeled around the emergency of the disaster event, to that of the sustainability of the community. Consequently, the purpose of this study is to address three key issues in regard to sustainability in disaster operations and planning.
The first study of this dissertation (Chapter 3) focuses on describing disaster operations management and planning in its current state, examining features unique to sustainability in this context, and finally developing a planning framework that advances community sustainability in the face of disasters. This framework is applied in the succeeding quantitative studies (Chapter 4 and Chapter 5).
The second study in this dissertation (Chapter 4) extends the sustainable planning framework offered in Chapter 3, using mathematical models. In particular, the modeling contributions include the consideration of multiple possible disaster events of single disaster type expected in a longer-term decision horizon, under integrated disaster management planning that is geared towards sustainability. These models are assessed using a mono-hazard scenario generator. A pedagogical example based on Portsmouth, Virginia, is offered.
The last study in this dissertation (Chapter 5) extends the application of quantitative models to account for the 'multi-hazards' paradigm. While Chapter 4 considered multi-event analysis, the study was limited to a mono-hazard nature (the consideration of only one type of hazard source). This study extends analytical models from mono-hazard to multi-hazard, the consideration of a range of likely hazards for a given community. This analysis is made more complex because of the dependencies inherent in multiple hazards, projects, and assets. A pedagogical example based on Mombasa, Kenya, is offered.Ph. D.
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Callahan, Jeremy. "Metrics of METOC forecast performance and operational impacts on carrier strike operations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Sep%5FCallahan.pdf.
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Thesis (M.S. in Meteorology and Physical Oceanography)--Naval Postgraduate School, September 2006.Thesis Advisor(s): Tom Murphree, Rebecca Stone. "September 2006." Includes bibliographical references (p. 61-62). Also available in print.
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Jones, Blake. "Effect of landing size on operational delays for New Zealand harvest operations." Thesis, University of Canterbury. School of Forestry, 2013. http://hdl.handle.net/10092/9696.
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Landings are an integral part of New Zealand Harvest operations where extracted trees are processed into logs and loaded out onto trucks. Forest owners need to balance the cost and environmental considerations when designing and constructing landings, with the productivity and safety of the harvesting crew that will use the landing.
The objective of this study is to gain a greater understanding of landing size and how they affect forest harvest operations. This study investigates the relationship between landing size and processing delays. A time study was carried out for ten harvest operations predominantly in the lower North Island. The time study recorded all delays on the processing task of measuring and cutting stems into logs. The delays were then categorised so that only processing delays that are influenced by the size of the landing remained. These processing delays were then expressed per m3 and used as the response variable in regression analysis to test their correlation against landing size and a range of other predictor variables.
A very strong, linear relationship between processing delays per m3 and actual landing size was found. This indicates that harvest operations on smaller landings exhibited higher delays per m3 than those on larger landings. Loading of the deck was the most significant processing delay; this is a direct result of not having enough room for surge piles as delimbing was not able to be carried out during loader downtime. The significance of the relationships developed in this study can help forest owners realise the implications of building landings that are too small for the intended purpose. Not only will small landings affect productivity, but have the potential to financially affect the forest owner also.
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Polo, Mejia Oliver Javier. "Operational research approach for optimising the operations of a nuclear research laboratory." Thesis, Toulouse, INSA, 2019. http://www.theses.fr/2019ISAT0033.
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Cette thèse présente les résultats d’un projet de recherche visant l’optimisation du processus d’ordonnancement d’activités au sein d’un laboratoire de recherche du Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA). Pour aborder ce problème, nous décomposons chaque activité en un ensemble de tâches élémentaires pour appliquer des méthodes classiques d’ordonnancement. Nous modélisons le problème d’ordonnancement du laboratoire comme une version étendue du problème de gestion de projet multi-compétences (Multi-Skill Project Scheduling Problem ou MSPSP). En première approche, nous proposons un MSPSP avec pénalité par préemption, ainsi que sa formulation en Programmation Linéaire en Nombres Entiers (PLNE). Dans cette version du problème, la préemption est autorisée et une pénalité est appliquée chaque fois qu’une activité est interrompue. Cette approche précédente ne prend cependant pas en compte toutes les contraintes de sûreté et sécurité de l’installation et une variante plus précise du problème est nécessaire. Ainsi, nous proposons ensuite d’intégrer le concept de préemption partielle au MSPSP. Ce concept, qui n’a pas encore été étudié dans la littérature scientifique, implique que seul un sous-ensemble de ressources est libéré pendant les périodes de préemption. Le problème qui en découle (MSPSP avec préemption partielle ou MSPSP-PP) est modélisé à l’aide de deux méthodologies : la PLNE et la programmation par contraintes. Compte tenu du besoin industriel de disposer de bonnes solutions dans un délai très court, nous présentons également une série d’algorithmes heuristiques pour MSPSP-PP. Tout d’abord, nous présentons un algorithme glouton qui utilise des règles de priorité et un problème de flot pour l’affectation des techniciens. Pour améliorer les solutions de l’algorithme glouton, nous présentons un algorithme de recherche locale basée sur une arborescence binaire et une procédure de recherche adaptative aléatoire gloutonne. Enfin, nous présentons un algorithme de recherche locale à grand voisinage, une procédure hybride combinant des méthodes exactes et heuristiques. Une maquette d’interface graphique, permettant l’exploitation simple des algorithmes d’ordonnancement par l’équipe de planification de l’installation, est aussi présentéeThis dissertation presents the results of a research project aiming to optimise the scheduling of activities within a research laboratory of the “Commissariat à l’Energie Atomique et aux Energies Alternatives (CEA)”. To tackle this problem, we decompose every activity into a set of elementary tasks to apply standard scheduling methods. We model the problem as an extended version of the Multi-Skill Project Scheduling Problem (MSPSP). As a first approach, we propose an MSPSP with penalty for preemption, along with its mixed-integer/linear programming (MILP) formulation, where the preemption is allowed applying a penalty every time an activity is interrupted. However, the previous approach does not take into account all safety constraints at the facility, and a more accurate variant of the problem is needed. We then propose to integrate the concept of partial preemption to the MSPSP. This concept, which has not been yet studied in the scientific literature, implies that only a subset of resources is released during preemption periods. The resulting MSPSP with partial preemption (MSPSP-PP) is modelled using two methodologies: MILP and constraint programming. Regarding the industrial need of having good solutions in a short time, we also present a series of heuristics algorithms for the MSPSP-PP. First, we present a serial greedy algorithm, using priority rules and a flow problem for the allocation of technicians. To improve the solutions of the greedy algorithm, we present a binary-tree-based search algorithm and a greedy randomised adaptive search procedure. Finally, we present a large neighbourhood search algorithm, a hybrid procedure combining exact and heuristic methods. A mock-up of a Graphical User Interface, allowing the exploitation of the scheduling algorithms by the CEA is also presented
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Jonsson, Lina, and Ellen Hedman. "Operations- och anestesisjuksköterskors upplevelser av att använda checklista för säkerhet vid operationer." Thesis, Luleå tekniska universitet, Institutionen för hälsovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63838.
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Bakgrund: World Health Organization, WHO har arbetat fram en checklista för säker kirurgi, som skall stötta arbetslaget i arbetet kring patienten. Checklistans syfte är att förbättra kommunikationen i arbetslaget och minska komplikationer och dödsfall i samband med kirurgi. Studiens syfte var att undersöka operations- och anestesisjuksköterskors upplevelser av att använda checklista för säkerhet vid operationer i sitt dagliga arbete. Metod: Studien var en kvalitativ intervjustudie som genomförts i fokusgrupper med operationssjuksköterskor i ena gruppen och anestesisjuksköterskor i andra. Data från två intervjuer analyserades med hjälp av en kvalitativ innehållsanalys. Resultat: Studien visade att brister fanns vid implementeringen och att personalen arbetade enligt gamla rutiner. Ett varierat intresse fanns till checklistan, vilket resulterade i en varierad följsamhet i användandet. Resultatet visade på att kommunikationen förbättras och att checklistan synliggjorde alla medarbetarna och ökade möjligheten till att alla kunde känna sig delaktig i vården kring patienten. Vid användning av checklistan reds frågetecken ut och checklistan skapade ett öppet klimat där personalen kunde ta upp eventuella frågetecken som fanns. Resultatet i studien visar dock på att checklistan inte löser alla kommunikationsproblem, då det framkommer att dåliga attityder och bristande respekt till varandra fanns och försvårade användandet. Konklusion: Operation -och anestesisjuksköterskorna ansåg att checklistan var ett bra verktyg när det gäller patientsäkerhet, kommunikation och teamarbete men att det fanns brister i följsamheten. De ansåg att användandet av checklistan var personbundet och att det trots checklistans tydliga utformning ändå fanns frågetecken hos personalen, speciellt vem som ansvarade att den blev gjord.
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Rupkalvis, James A. "The Operation Joint Endeavor deployment : transportation lessons learned and impact on subsequent operations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA390857.
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Dobocan, Claudiu O. "Decisions integration : a critical necessity for special operations /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FDobocan.pdf.
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Keene, Thomas Edward. "Beset by secrecy and beleaguered by rivals : the Special Operations Executive and military operations in Western Europe 1940-1942, with special reference to Operation Frankton." Thesis, University of Plymouth, 2011. http://hdl.handle.net/10026.1/477.
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The intention of this thesis is to investigate the circumstances and background surrounding the early development and deployment of the Special Operations Executive (SOE), Britain's clandestine secret service created by Winston Churchill in 1940 to 'set Europe ablaze.' It will examine the climate in which SOE was created, the feasibility of the tasks it was expected to perform and the relationships it established with Churchill, the Cabinet Office, the Chiefs of Staff, the Foreign Office, the Admiralty and Army, the Secret Intelligence Service (SIS) and Combined Operations. It will examine how these organisations succeeded or failed to work towards a common wartime objective. The focus of the thesis is concerned primarily with the political moves and counter-moves in London that dominated the early years of SOE's six year existence. It will concentrate therefore upon 1940-1942, the critical early years before planning for the Second Front 'militarised' SOE's clandestine role. There is thus little reference to SOE in The Balkans, in Holland or the Middle East or to the actual deployment and modus operandi of SOE agents in the field. Their stories of courage and betrayal, of penetration, capture or evasion are mentioned only in so far as they illuminate the struggle to establish a wider SOE credibility in London. The single exception to this is Operation Frankton, the 'Cockleshell Heroes' raid on Bordeaux shipping in December 1942. The planning, execution and result of this raid were determined by Combined Operations' relationship with SOE and led to an outcome that was shaped by SOE's sense of secrecy, rivalry and political encirclement. This thesis will attempt to unravel those critical and complex relationships.
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Goodmanson, Jeff D. "Logistics model design in military operations other than war/full spectrum operations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA340885.
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Thesis (M.S. in Operations Research) Naval Postgraduate School, September 1997."September 1997." Thesis advisor(s): Michael G. Sovereign. Includes bibliographical references (p. 105-106). Also available online.
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Sands, Thomas R. Issler Paul H. "Special Operations Forces, Information Operations, and Airpower : prescription for the 21st Century /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA360045.
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Thesis (M.S. in Defense Analysis) Naval Postgraduate School, December 1998."December 1998." Thesis advisor(s): John Arquilla. Includes bibliographical references (p. 109-113). Also available online.
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Sands, Thomas R., and Paul H. Issler. "Special Operations Forces, Information Operations, and Airpower: prescription for the 21st Century." Thesis, Monterey, California. Naval Postgraduate School, 1998. http://hdl.handle.net/10945/8991.
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Approved for public release; distribution is unlimitedThe Gulf War of 1990-1991 has been described as the pinnacle of second-wave warfare, characterized by massed field armies, maneuver formations based on the armored vehicle and airplane, second generation precision guided munitions (PGMs), and engagements involving thousands of soldiers, sailors, airmen, and marines. At the height of the conflict, over 500,000 United States (U.S.) servicemen were deployed in support of Operations DESERT SHIELD/DESERT STORM. The ensuing victory by U.S./Coalition forces and loss by Iraqi forces is one of the greatest lopsided outcomes in the history of warfare. Unfortunately, the demonstrated U.S. preeminence in conventional second-wave warfare may spell trouble for the 21st century. Potential adversaries will have taken note of our capabilities in this arena and will endeavor to develop methods and technologies that will negate our strengths either through asymmetric attack, innovation, or both. These actions will give rise to asymmetric warfare as the dominant paradigm. Combined application of special operations forces (SOF), information operations (IO), and airpower (AP) may produce synergistic effects that will permit smaller forces to effectively and efficiently counter our adversaries adopting asymmetric warfare. We employ a heuristic approach in conveying our vision of combined SOF, IO, and AP operations.
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Minami, Nathan A. (Nathan Andrew). "Re-architecting the Battalion Tactical Operations Center : transitioning to network centric operations." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42370.
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Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2007.Includes bibliographical references (leaves 128-134).
As the Army conducts transformation in the midst of an ongoing information driven Revolution in Military Affairs (RMA) and the War on Terror, it has realized the need to develop leaner, more agile, versatile and deployable forces. As part of its latest transformation to Brigade "Units of Action," the Army realized the need to improve the "tooth to tail" ratio of its forces and transferred from a Cold War "Divisional" force structure to one focused around more deployable and sustainable Brigade Units of Action. Ironically, this transformation to what is suppose to become a more lean and deployable force structure has produced larger and more heavily staffed battalion, brigade and division command posts. Despite introduction of the Army Battle Command System (ABCS), a system of digital systems that are intended to help speed up the Army's ability to transfer information, improve situational awareness, make decisions, and out "OODA" (Observe-Orient-Decide-Act) its opponents, in many aspects the Army has actually taken a step backwards. The end result is that these larger command posts are becoming more hierarchical and bureaucratic, and are reducing the Army's ability to get ahead of the enemy's decision cycle. Platoon Leaders and Company Commanders in Iraq and Afghanistan constantly lament that "if they only had the information they needed 48 hours earlier," they could have captured the target. This study examines one small aspect of this tremendous problem, the architecture of the Battalion Tactical Operations Center (TOC). It analyzes the current information revolution, the contemporary operating environment, network centric warfare, other emerging Revolution in Military Affairs (RMA) concepts, and the current Battalion TOC configuration and doctrine. It then applies System Dynamics techniques and develops a set of heuristics to address the problem. The ultimate goal of this study is to develop a practical concept for an improved organization, structure and function of the command post.
by Nathan A. Minami.
S.M.
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Howe, P. Gardner. "Risk in military operations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA306058.
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Jacobs, Brian W. "Essays on operations strategies." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31655.
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Thesis (Ph.D)--Management, Georgia Institute of Technology, 2010.Committee Co-Chair: Singhal, Vinod; Committee Co-Chair: Subramanian, Ravi; Committee Member: Hora, Manpreet; Committee Member: Thomas, Valerie; Committee Member: Toktay, Beril. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Tilson, Vera. "Three essays in operations." online version, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1147968123.
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Antonsson, Tommy. "Sales & Operations Planning." Thesis, University of Skövde, Department of Computer Science, 1998. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-191.
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Sales & Operations Planning är den process som knyter ihop försäljningsplanen och produktionsplanen med affärsplanen. Detta sker löpande varje månad i aggregerad form. Den här typen av planering har rönt stor framgång i USA. Detta är i alla fall Richard C. Lings (1988) åsikt, men så var det också han som grundade Sales & Operations Planning.
I mitt arbete kommer jag att visa vad Sales & Operations Planning är för något och hur det kan implementeras. Trots att det är ett populärt sätt att planera på i USA så har det inte nått samma framgång i Sverige. En av de viktigaste delarna i S&OP är familjeindelning. Jag kommer i mitt arbete visa hur Svenska företag delar in sina artiklar i familjer och hur litteraturen vill att det ska ske. Jag kommer även att ta upp fördelarna med simulering och hur Svenska företag planerar.
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Agrawal, Vishal. "Essays on sustainable operations." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34800.
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With the increased attention of different stakeholders on the environmental performance of businesses, several firms are increasingly focusing on product recovery and reuse activities which are not only profitable but may also help to reduce the environmental impact of their operations. This dissertation focuses on managerial challenges associated with such value-added recovery and reuse activities. The first essay examines how a firm should bring a product to market, in particular, whether to lease or sell products. Motivated by claims that leasing can be an environmentally superior to selling, we analytically investigate if either leasing or selling can be both more profitable for a monopolist and have a lower total environmental impact. The second essay first experimentally examines the effect of remanufactured products on the perceived value of new products. This effect is then incorporated to analytically investigate an OEM's strategy in the presence of competition from third-party remanufacturers. In the third essay, motivated by a major IT company, we investigate the optimal product recovery and remanufacturing strategy for a firm that can offer trade-in rebates to achieve price discrimination. We also consider the effect of potential entry of third-party remanufacturers on the firm's recovery and remanufacturing strategy.
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Liao, Sha. "Essays in operations management." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54059.
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This dissertation addresses two topics in the domain of operations management. First we study a single utility’s optimal policies under the Renewable Portfolio Standard, which requires it to supply a certain percentage of its energy from renewable resources. The utility demonstrates its compliance by holding a sufficient amount of Renewable Energy Certificates (RECs) at the end of each year. The utility’s problem is formulated as a stochastic dynamic program. The problem of determining the optimal purchasing policies under stochastic demand is examined when two energy options, renewable or regular, are available, with different prices. Meanwhile, the utility can buy or sell RECs in any period before the end of the horizon in an outside REC market. Both the electricity prices and REC prices are stochastic. We find that the optimal trading policy in the REC market is a target interval policy. Sufficient conditions are obtained to show when it is optimal to purchase only one kind of renewable energy and regular energy, and others to show when it is optimal to purchase both of them. Explicit formulas are derived for the optimal purchasing quantities in each case. In the second essay, we examine the interaction between a buyer (Original Equipment Manufacturer, OEM) and his supplier during new product development. A “white box” relationship is assumed: the OEM designs the specification of the product and outsources the production to his supplier. The supplier may suggest potential specification problems. Our research is motivated by the fact that the supplier may detect potential specification problems, and one cannot take for granted that the supplier would inform the OEM. We solve an optimization problem from the perspective of the OEM. We first prove that it is strictly better for the OEM to design the contract so that the supplier will inform the OEM should she detect any flaws. Then we characterize the optimal solutions for the OEM. We also perform some sensitivity analysis at the end.Business, Sauder School of
Graduate
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Girotra, Karan. "Essays in operations management." online access from Digital Dissertation Consortium, 2007. http://libweb.cityu.edu.hk/cgi-bin/er/db/ddcdiss.pl?3260909.
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Rosenberger, Jay Michael. "Topics in airline operations." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/25115.
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Prowse, Anton. "Generalized operations on hypermaps." Thesis, University of Southampton, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443026.
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MAGALHAES, ROMULO DE CARVALHO. "OPERATIONS OVER LIGHTWEIGHT ONTOLOGIES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=25848@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
Este trabalho aborda problemas de projeto de ontologias tratando-as como teorias e definindo um conjunto de operações que mapeiam ontologias em ontologias, incluindo suas restrições. Inicialmente, o trabalho resume o conhecimento básico necessário para definir a classe de ontologias utilizada e propõe quatro operações para manipular ontologias. Em seguida, mostra o funcionamento destas operações e como elas podem ajudar na criação de novas ontologias. O cerne do trabalho mostra a implementação destas operações em um plug-in do Protégé, detalhando sua arquitetura e incluindo casos de uso.
This work addresses ontology design problems by treating ontologies as theories and by defining a set of operations that map ontologies into ontologies, including their constraints. The work first summarizes the base knowledge needed to define the class of ontologies used and proposes four operations to manipulate them. It then shows how the operations work and how they may help design new ontologies. The core of this work is describing the implementation of the operations over a Protégé plug-in, detailing the architecture and including case-use examples.
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Özçag, Emin. "Operations on generalized functions." Thesis, University of Leicester, 1993. http://hdl.handle.net/2381/34559.
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In Chapter 1, we give some properties distributions and introduce the notions of neutrix and neutrix limit with examples, in order to study the problem of defining the convolution product and the product of distributions. The problem of defining the distribution such that the ordinary derivative formula is satisfied for all and s = 0,1,2,... is studied in Chapter 2. In Chapter 3, we define the Beta function Bp,q (,) using the neutrix limit and prove that this neutrix limit exists for all . In Chapter 4 we let f and g be distributions and let fn(x) = f(x)Tn(x), where Tn(x) is a certain function which converges to the identity function as n tends to infinity. We then define the neutrix convolution product fg as the neutrix limit of the sequence {fn * g}, provided the limit h exists in the sense that N - limn fn * g,? = h, for all in D. The neutrix convolution products In are evaluated, from which other neutrix convolution products are deduced. The neutrix convolution product of distributions in Chapter 4 is not commutative. Therefore, in Chapter 5, we consider the commutative neutrix convolution product of distributions, *, and also evaluate the neutrix convolution product. The problem of defining the product of ultradistributions is considered in Chapter 6, and the neutrix product (Ff) (Fg) in Z', where F denotes the Fourier transform, is defined as the neutrix limit of {F(fTn).F(gTn). Later, we prove that the exchange formula holds. We finally define the neutrix product F(f)0G(g) of F(f) and G(g), where F and G are distributions and f and g are locally summable functions. It is proved that if f is infinitely differentiable function with f'(x) 0 and if the neutrix product F o G exists and equals H, then the neutrix product F(f) o G(f) exists and equals H(f). We also give an alternative approach to the form F(f(x)) in D', where F and f are distributions.
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Horn, Webb H. "Cache coherent commutative operations." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100601.
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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 51-57).
This thesis presents Coup, a technique that reduces the cost of updates in shared memory systems. In particular, it describes a new cache coherence protocol, MEUSI, and evaluates its performance under simulation in zsim. MEUSI extends the MESI protocol to allow data to be cached in a new update-only state, reducing both block-level thrashing and on-chip network traffic under many parallel workflows. Coup permits both single-word and multi-word commutative data operations, which are implemented as x86-64 ISA extensions. To evaluate single-word instructions, this thesis presents a case study of a new reference counting scheme, and for multi-word commutative operations, this thesis describes the design of a commutative memory allocator. Coup and MEUSI confer significant benefits to the reference counting scheme and the memory allocator, both in terms of performance and ease of programming.
by Webb H. Horn.
M. Eng.
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Harvey, Raymond J., and Glen E. Baer. "MSX MISSION OPERATIONS CENTER." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/608392.
Full textAbstract:
International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, CaliforniaThe Mission Operations Center (MOC) at APL is the first processing link in the MSX data system. Two key components of the MOC that play a role in the telemetry acquisition and processing functions are the Mission Control Center (MCC) and the Mission Processing Center (MPC). This paper will present a summary of the telemetry acquisition and data processing structure built to handle the high volume of MSX data and the unique hardware and software systems to perform these functions. The primary responsibility of the MCC is to maintain the health and safety of the MSX spacecraft. This is accomplished by communicating with the spacecraft through the APL stations and the AFSCN. The MCC receives the spacecraft housekeeping 16 Kb telemetry stream and commands the spacecraft via the 2K command link. Due to the complexity of the spacecraft various analysis tools exist to evaluate the spacecraft health and to generate commands for controlling the spacecraft. The primary responsibility of the MPC is the initial processing of the 1Mb and 25Mb spacecraft science telemetry streams. The science data is recorded in a raw format, both analog and digital, and a digital 8 mm tape format, Level 1A tape, which serves the MSX program as the transport media and format for science data dissemination. The MPC also collects downlink data from the MCC and planning products from the Operations Planning Center for inclusion on the Level 1A tape to enable the MSX data community to analysis the data. This data is sent electronically to the MPC via a LAN. One of the key products provided on the Level 1A tape from the MCC is a measure of the spacecraft clock against time standards. The MPC consists of a hardware front end for the capture and formatting of the science data and a computer system for the processing of the formatted science data to produce Level 1A tapes. The hardware front end includes wideband analog recorders, decryption devices, data selectors, bit sync, and frame syncs. One of the unique features of the 25 Mb telemetry stream is that is transmitted to the ground in the reverse direction. The MPC must then reverse the data again which is accomplished via analog recorders in order to perform further processing. The computer system consists of three model VAX 4000 computers with 107 Gb of disk space and 12 8 mm tape drives. One VAX is task with reading the 25 Mb telemetry onto the disk. The second VAX reads to the 1Mb telemetry onto the disk and produces a digital 8 mm tape of the raw data. The third VAX is tasks with processing the data and writing the Level 1A tapes. The systems architecture is such that while today's data is being downlinked yesterday's data is being processed and written to Level 1A tapes. Custom software was developed to perform the processing and data management within the MPC.