Tesis sobre el tema "System Dynamics Model (SDM)"
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Egbunike, Chukwudi Muofunanya Uchenna. "A system dynamics mineral exploitation model". Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38295.
Texto completoLiu, Fuping. "A system dynamics model for hydropower generation planning". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62782.pdf.
Texto completoJootar, Jay 1975. "A risk dynamics model of complex system development". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8480.
Texto completoIncludes bibliographical references (p. 201-204).
The development of complex systems is a challenging endeavor which has captured the attentions of scholars and practitioners alike. Throughout the decades, numerous methods have been proposed to help manage such development efforts more effectively and efficiently. Some of these methods, such as prototyping, concurrent engineering, iterative model for software development, and system-focused development for R&D, are process models which recommend better ways to structure the development process to handle the complexity of the system under development. This thesis seeks to understand the complex system development from a risk perspective. Continuing from the work done by other researchers, this work combines issues which are traditionally considered separately into one single model. More specifically, the model explicitly captures the dependencies in the system and the structure of an iterative development process and their interactions. The resulting mathematical problem demonstrates the risk characteristics of a development process. It shows that the optimality calls for a trade-off between the reduction of the probability of risk and the increase in the impact of risk. From its structure, the model also helps us understand how different aspects of system architecture affect the structure and the performance of the development process. In addition, the model also reveals the fundamental problems of process models and proposes a generic risk-based alternative. To explore the applicability of the model, the thesis also provides a case study in a software development process and a set of heuristics for solving the resulting combinatorial problem.
by Jay Jootar.
Ph.D.
Tan, HockWoo. "Agent-based model and system dynamics model for peace-keeping operations". Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/44010.
Texto completoMilitary operations other than war (MOOTW) make up a large percentage of total military operations. Some common MOOTW operations are peacekeeping (PKO) and humanitarian assistance, and disaster relief (HADR). System dynamics (SD) uses a top-down approach that models high-level system behavior as compared to the use of agent-based modeling (ABM), which uses a bottom-up approach to generate system-level behavior through emergent behavior. In this work, SD and ABM were applied to model a food distribution scenario during the early phases of PK/HADR and the implementation process and results compared. The results were that large variations in food prices were observed as the time step and the integration technique were varied. Both SD and ABM, however, displayed similar emergent behavior in terms of crimes that occurred due to relative deprivation within the population. As an alternative to time step approximation, discrete event simulation (DES) may be used to implement the SD model through discretization of stocks or flows within the system and identifying events that change these quantities. The quantization of continuous variables in SD into discrete quantities may, however, introduce quantization errors. Emergent behavior seen in ABM can occur in SD through the interactions between equations. Due to the compactness of SD equations, it feels less intuitive to develop models using SD than it does to develop models using ABM.
Sontamino, Phongpat. "Decision support system of coal mine planning using system dynamics model". Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-159919.
Texto completoMbiti, Titus Kivaa Peter y tkivaap@yahoo com. "A System Dynamics Model of Construction Output in Kenya". RMIT University. Property Construction & Project Management, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081211.160910.
Texto completoYung, Christian Hung Shing. "The privatization process--a system dynamics model for Brazil". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12086.
Texto completoGozluklu, Burak. "A new project management system dynamics model and simulator". Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113517.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 56-57).
Simulators generated from project management system dynamics models are exercised for training the future project managers. In today's' high dynamic, vibrant and complex markets, the models should incorporate more business dynamics and also provide more tools to the players who can flexibly steer in the project games. Along with that objective, this study brings new dynamics and modeling approach to the original multi-phase project system dynamics model of Ford and Sterman, 1998. The new dynamics include the development of new features in the market growing the customer expectation, reflection of customer expectation to project economics, supersede of project concurrencies by rushing the tasks, allowing the defects delivered to customers to be compensated by lifetime repair cost and free positioning of the phase schedules while maintaining concurrencies. A new formulation for completion putthrough, option to include final downstream defect correction and elaborate project econometrics are also included. The model is built in modules that can be utilized to increase the number of phases and/or explain the model to the trainees more easily. The project model employs two options; a zero-defect policy and allowed defect policy where the latter is newly introduced by the repair cost. The system dynamics model is tested by proposed extreme project manager traits which are implemented as table function to use one or more modules to pursue an ultimate objective within a certain logic. A construction project principally mimicking the cases provided by Parvan et al. 2015 is simulated with the manager traits. The results initiate interesting tradeoffs such as the influence of project delivery time versus repair cost, accepting new tasks versus creating more defects or rescheduling the project or positioning the workforce before the ramping up of testing and defective task correction activities. The model necessitates a deeper understanding and analyses of long-term phenomenon such as the lifetime repair cost, the financial consequences of defects and lifetime earnings of products as well as the continuous feature development in the market and its economic value. It is found that the current model proposes an enhanced tool for the training of future project managers. Keywords: System dynamics, project management, simulation, defect policy, numerical modeling.
by Burak Gozluklu.
S.M. in Engineering and Management
Quan, Chuanwen. "A system dynamics model for the development of China's air transportation system". Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-09182008-063445/.
Texto completoGrobbelaar, Sara Susanna. "R&D in the national system of innovation a system dynamics model /". Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07212007-130132.
Texto completoSoddemann, Thomas. "Non-equilibrium molecular dynamics study of an amphiphilic model system". [S.l. : s.n.], 2001. http://ArchiMeD.uni-mainz.de/pub/2001/0015/diss.pdf.
Texto completoNeugebauer, Felix Sebastian. "Tayloring Brazil: a system dynamics model for monetary policy feedback". reponame:Repositório Institucional do FGV, 2011. http://hdl.handle.net/10438/9098.
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The thesis introduces a system dynamics Taylor rule model of new Keynesian nature for monetary policy feedback in Brazil. The nonlinear Taylor rule for interest rate changes con-siders gaps and dynamics of GDP growth and inflation. The model closely tracks the 2004 to 2011 business cycle and outlines the endogenous feedback between the real interest rate, GDP growth and inflation. The model identifies a high degree of endogenous feedback for monetary policy and inflation, while GDP growth remains highly exposed to exogenous eco-nomic conditions. The results also show that the majority of the monetary policy moves during the sample period was related to GDP growth, despite higher coefficients of inflation parameters in the Taylor rule. This observation challenges the intuition that inflation target-ing leads to a dominance of monetary policy moves with respect to inflation. Furthermore, the results suggest that backward looking price-setting with respect to GDP growth has been the dominant driver of inflation. Moreover, simulation exercises highlight the effects of the new BCB strategy initiated in August 2011 and also consider recession and inflation avoid-ance versions of the Taylor rule. In methodological terms, the Taylor rule model highlights the advantages of system dynamics with respect to nonlinear policies and to the stock-and-flow approach. In total, the strong historical fit and some counterintuitive observations of the Taylor rule model call for an application of the model to other economies.
Cao, Shiya. "Analysis of Household Water Filtration in China: A System Dynamics Model". Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/1268.
Texto completoKnoll, Karin L. (Karin Lynn). "A system dynamics model for the diffusion of a new technology". Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/8957.
Texto completoIncludes bibliographical references (p. 193-194).
It is often difficult for companies producing new technologies to predict the acceptance pattern (or diffusion pattern) for the new technology in the marketplace. The expected diffusion pattern is important because it affects and is affected by the production, financial, sales and distribution strategies for the new technology, as well as decisions related to marketing and technical development. It is also useful if the projection of technology acceptance offers the firm insight into the factors that drive acceptance and the factors that contribute to rejection of the technology in the marketplace. This thesis develops a system dynamics model for the diffusion of a new medical technology. At the model's core is a general theory of medical technology emergence proposed by Dr. Jack Homer in his 1983 Ph.D. thesis entitled "A Dynamic Model for Analyzing the Emergence of New Medical Technologies." By parameterizing Dr. Homer's general system dynamics model to suit the new technology case, it is hoped that the model will give rise to a greater understanding of the factors relevant to diffusing the technology, as well as lead to more informed managerial decision making as progress is made with the technology.
by Karin L. Knoll.
S.M.
Ahn, Namsung 1955. "A system dynamics model of a large R&D program". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9541.
Texto completoIncludes bibliographical references (leaf 122).
Organizations with large R&D activities must deal with a hierarchy of decision regarding resource allocation. At the highest level of allocation, the decision is related to the total allocation to R&D as some portion of revenue. The middle level of allocation deals with the allocation among phases of the R&D process. The lowest level of decisions relates to the resource allocation to specific projects within a specific phase. This study focuses on developing an R&D model to deal with the middle level of allocation, i.e., the allocation among phases of research such as basic research, development, and demonstration. The methodology used to develop the R&D model is System Dynamics. Our modeling concept is innovative in representing each phase of R&D as consisting of two parts: projects under way, and an inventory of successful but not-yet-exploited projects. In a simple world, this concept can yield an exact analytical solution for allocation of resources among phases. But in a real world, the concept should be improved by adding more complex structures with nonlinear behaviors. Two particular nonlinear feedbacks are incorporated into the R&D model. The probability of success for any specific project is assumed partly dependent upon resources allocated to the project. Further, the time required to reach a conclusion regarding the success or failure of a project is also assumed dependent upon the level of resources allocated. In addition, the number of successful projects partly depends on the inventory of potential ideas in the previous stage that can be exploited. This model can provide R&D management with insights into the effect of changing allocations to phases whether those changes are internally or externally driven. With this model, it is possible to study the effectiveness of management decisions in a continuous fashion. Managers can predict payoffs for a host of different policies. In addition, as new research results accumulate, a re-assessment of program goals can be implemented easily and allocations adjusted to enhance continuously the likelihood of success, and to optimize payoffs. Finally, this model can give managers a quantitative rationale for program evaluation and permit the quantitative assessment of various externally imposed changes.
by Namsung Ahn.
Ph.D.
Smith, Edwin L. "A system dynamics computer model for long-term water quality planning". Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/41562.
Texto completoThe objective of this study was to develop a comprehensive, basin-wide, water-quality-planning model using system dynamics methodology. Later, the model was to be interfaced with a more conventional system dynamics model: one simulating social, technological, economic, and political interactions. By doing so, it is envisioned that such management policies as zoning, abatement facilities, and best management practices may be simulated together.
Master of Science
Rupp, Matthew Y. "Passive dynamic steering system model for use in vehicle dynamics simulation". Connect to resource, 1994. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1157568618.
Texto completoReda, Hussein Murad Ali. "A theory for national industrial development presented in a system dynamics model". Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/76481.
Texto completoPh. D.
Pfaender, Jens Holger. "Competitive Assessment of Aerospace Systems using System Dynamics". Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14014.
Texto completoBeringer, Tim. "Earth system dynamics in the Anthropocen". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://dx.doi.org/10.18452/16442.
Texto completoHuman activities, primarily the combustion of fossil fuels and the global modification of the land surface, are transforming the Earth System at unprecedented scale. Climate change and the overexploitation of natural resources may soon overwhelm the adaptive capacities of many ecosystems and societies, which could lead to substantial losses in human well-being and political destabilization. In this context, it is the goal of this thesis to contribute to a better understanding of the most important global drivers that will determine the future of the land biosphere during this century: climate change and human land use. Based on a Dynamic Global Vegetation Model (DGVM), the first part of this thesis examines two large climatic disturbances of the terrestrial carbon cycle that were observed during the last three decades. These analyses focus on the effects of changes in temperature, precipitation and radiation on plant productivity and soil decomposition. Results indicate that increased carbon storage in the land biosphere explains the most part of the atmospheric CO2 anomaly. The second part of this thesis addresses the worldwide increasing demand for bioenergy that may become the most important driver of future land use change due to the large area requirements of biomass cultivation. A combination of vegetation modeling and spatial data analyses is used to assess global bioenergy potentials that consider various sustainability requirements for food security, biodiversity protection and the reduction of greenhouse gas emissions and to evaluate the environmental impacts of large-scale energy crop cultivation. The results indicate that bioenergy may provide between 15 and 25% of the global energy demand in 2050. Exploiting these potentials, however, requires the conversion of large amounts of natural vegetation into agricultural land affecting a large number of ecosystems already fragmented and degraded by land use change.
Burtt, Kelly D. "Computational studies of photo-induces isomerization dynamics in a model molecular motor system". abstract and full text PDF (free order & download UNR users only), 2005. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3209954.
Texto completoFinley, Allan Michael. "Application of system dynamics modeling techniques to an existing stream water quality model". Master's thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02162010-020040/.
Texto completoBrabant, Darlene A. "Extending the System Dynamics model of software project management to a multiproject environment". Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/30679.
Texto completoIncrease in the demand for software, coupled with concerns regarding cost overruns and schedule delays in software development lead experts to believe that the United States will be unable to produce the software it needs. In order to improve their performance, software professionals must first understand the development process. The System Dynamics model of software project management provided a tool for the understanding of a single project. This tool was expanded to model a multiproject environment in which more than one project is managed. Identification and addition of the variables necessary to reflect manpower decisions resulting in-movement between projects and within an organization were effected. This enhancement provided insights onto the allocation of resources to projects and into the optimization of the staffing function.
Byrnes, John M. (John Marshall). "A system dynamics model of a small R&D office : productivity enhancement". Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/14265.
Texto completoFrazier, Donald P. "A Simulation Model of Large-Scale Software Reuse Implementations: A System Dynamics Approach". NSUWorks, 2004. http://nsuworks.nova.edu/gscis_etd/526.
Texto completoMonga, Pavinder. "A System Dynamics Model of the Development of New Technologies for Ship Systems". Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35258.
Texto completo
We provide a comprehensive knowledge elicitation process in which members from the Newport News Shipbuilding, the Naval Sea Command Cost Estimating Group, and the Virginia Tech System Performance Laboratory take part in a group model building exercise. We build a System Dynamics model based on the information and data obtained from the experts. Our investigation of the dynamics yields two dominant behaviors that characterize the technology development process. These two dynamic behaviors are damped oscillation and goal seeking. Furthermore, we propose and investigate four dynamic hypotheses in the system. For the current structure of the model, we see that an increase in the complexity of new technologies leads to an increase in the total costs, whereas a increase in the technology maturity leads to a decrease in the total costs in the technology development process. Another interesting insight is that an increase in training leads to a decrease in total costs.
Master of Science
Damle, Pushkar Hari. "A system dynamics model of the integration of new technologies for ship systems". Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/35216.
Texto completoMaster of Science
Shin, Seung-il. "A system dynamics model for total-factor productivity measurement of the manufacturing system: its implications for JIT". Diss., Virginia Tech, 1991. http://hdl.handle.net/10919/39974.
Texto completoPh. D.
Hicks, Dawn L. "Optimal design of digital model-following systems". Thesis, University of Salford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284423.
Texto completoČerný, Michal. "Systémový model řízení organizace". Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-114298.
Texto completoDrobek, Marc. "Data-driven system dynamics modelling : model formulation and KPI prediction in data-rich environments". Thesis, Queen's University Belfast, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.725834.
Texto completoJiang, Hong. "A System Dynamics Model for Manpower and Technology Implementation Trade-off and Cost Estimation". Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5795.
Texto completoPh.D.
Doctorate
Industrial Engineering and Management Systems
Engineering and Computer Science
Modeling and Simulation; Engineering
Kurebayashi, Rintaro 1973. "A system dynamics model for analyzing bubble effects in the long distance telecom industry". Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17805.
Texto completoIncludes bibliographical references (leaves 94-95).
This thesis focuses on analyses of the long distance telecom service industry in US market by a system dynamics model to analyze bubble effects. The bubble effects have not been fully analyzed from the structural perspectives, although a lot of articles and papers partially explain the bubble effect. In this thesis, the system dynamics model of capacity expansion process, pricing, demand, cost, and decision making for new fiber installation is constructed by investigating the industrial structure. The model was analyzed, key factors for the bubble were identified, and their impact on the dynamics was captured. Through the analysis, I found that the fiber glut occurred by the fact that a temporal demand soar induced by the emergence of the Internet technologies leaded the telecom service providers to estimate the future demand wrongly, and the error was amplified by the long planning horizon which is economically plausible policy for each provider. I also found that the revenue reduced in the late stage of the bubble since the competitiveness in the industry stimulated price war.
by Rintaro Kurebayashi.
S.M.M.O.T.
Seville, Donald A. (Donald Anthony). "Moving beyond "the model" : a framework for integrating system dynamics into organizational policy making". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36341.
Texto completoChen, Yao-Tsung y 陳耀宗. "The Use of SDM-PRN Transformation for System Dynamics Model Construction and Policies Design". Thesis, 2001. http://ndltd.ncl.edu.tw/handle/93128432483979455713.
Texto completo國立中山大學
資訊管理學系研究所
89
This paper presents a model transformation between System Dynamics Model (SDM) and Artificial Neural Network (ANN) to aid model construction and policy design. We first point out a similarity between a System Dynamics Model (SDM) and an artificial neural network, in which both store knowledge majorly in the structure (or linkages) of a model. Then, we design a method that can map a SDM to a special design Partial Recurrent Network (PRN), and prove in mathematics that they two operate under the same numerical propagation constraints. With the established foundation, we then showed that the SDM-PRN transformation could aid SDM construction in the following way: (1) start from an initial skeleton of a PRN model (mapping from an initial SDM), (2) incarnate its structure by learning and (3) convert it back to a corresponding SDM. This approach integrates the capability of neural network learning with a traditional process, which thus makes model construction more systematic and much easier for common people. In the same philosophy, the SDM-PRN transformation could also aid SD policy design. Since any PRN can learn some structures from a historical time series pattern, it can also learn a better structure from a better pattern set by designer. We have investigated the effectiveness and usefulness of two application of the SDM-PRN transformation described above and the results are satisfactory.
Chuang, Sua-hua y 莊淑華. "Discussing the Mathematics theorem of System Dynamic by the transition between MM and SDM to help validating model". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/kv2eww.
Texto completo國立中山大學
資訊管理學系研究所
97
Mathematical model-building is one kind of mathematical thinking, which uses mathematical signs and methods to build a mathematical tool which can describe and solve practical problem. However, System Dynamic is to solve complicated non-linear dynamic problem. It uses the model-building software of diagram interface to make dynamic simulation. Behind the dynamic simulation is the calculation of a set of mathematical equation. The purpose of this research is , by the transition between Mathematics Model and System Dynamic Model, to discuss the mathematical principle of System Dynamic ,and to avoid distorting model and making the model validation harder due to the model-builder''s misusing function. Using the conclusion of the transition will help validating the model and raising the reliability and the efficiency of the model. From the conclusion of this research, we find out that System Dynamic is non-linear dynamic mathematical model. Both are exchangeable. From the transition, we also find that the graph function used in the process of System Dynamic model-building is a piecewise-linear- approximate function. The numerical value setting of the graph function can influence the system action. After the transition from System Dynamic model to mathematical model, we can use some other mathematical software to draw the phase-plane-plot or phase-portrait-plot. It will analyze clearly the system action in any situation, and validate the correction of model construction.
Lee, Meng-Tzung y 李孟宗. "Discuss the Effect of Design Contract Interface by System Design Model(SDM)". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/c9k8d2.
Texto completo國立成功大學
工業設計學系碩博士班
92
This study intends to build a Design Contract Interface ( DCI ) based on System Design Model so as to accomplish all the tasks ( such as signing the design contract, communication of designing, contents of service, assignment of manpower, cost and acceptance, control of time schedule, etc.) efficiently. The advantages of DCI can help designers to proceed the design job and management in accordance with the contract and secure the signing of the design case can be fulfilled for the mutual benefit of both parties. A vehicle design case was used in this study to prove the effect of DCI. Through the priority of various functional principles and its cost and control of time schedule, it was proved that DCI could be of great help to the designers to accomplish all kinds of design cases smoothly. Except the design work, designers often forget the importance of design contracts. Design contracts are usually used for designers to keep away from kinds of problems during the designing process, for example: the dispute about the quality of the design, the fees, the effect of the design contract, and the understanding on work items and time. These problems should be solved first. Of course, not every problem can be covered. However, a well-done case should be with a complete contract in order to make sure that everything goes well when designing. By the design contract interface which is used on cases creating, designers can sign a contract with factory owners. This is to manage cases going. It can solve six problems by signing contracts with the design contract interface: design contracts signing, design communicating, service, manpower disposing, fees and checking, and time controlling. The design contract is with efficacy and bases from the laws because it is notarize by the local court. This design contract interface project based on the study by SDM (problem decision, design analyzing, system switch, products developing, and levels of value) is created for vehicles mainly. And it is analyzed the effect by evaluating standers and time. This way can provide assistance for designers to have more complete cases to carry out by the design contract interface.
Chiu, Te-Fong y 邱得豐. "Construct business model by system dynamics research". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/10221621867133833128.
Texto completo國立臺北大學
企業管理學系
101
The “Business Model” began to be widely used and spread in the 1990s, the simplest way to describe business model is in what way the organization to make money. For the business administration researchers and corporate managers, business model provides three functions: learning, development, and implementation. However, the business model does not have a recognized accepted definition, caused confusion to use the business model for the managers. Therefore requires an appropriate tool, to simply describe the concept that business model want to communicate. System dynamics is a method proposed by Professor Jay W. Forrester in 1956, the main concept is to think in a macro point of view, to solve the problem, to avoid thinking of the micro point of view and limited fragment. System dynamics use the basic concept of the stock and flow, plus auxiliary variables and relationships linking, develop a set of tools used to simulate the operation of the system. It’s simple image expression, very suitable to describe the business model concept. This research study the literature of business model, system dynamics, value chain and innovation, critical success factor and performance indicators, chain restaurant industry in Taiwan, industrial personal computer industry in Taiwan, and instrument manufacturing industry in Taiwan, define the business model is a frame of revenue flow, logistics flow, value flow, and information flow. Use system dynamics to develop the business model of chain restaurant industry, industrial personal computer industry, and instrument manufacturing industry. Sum up a general value chain business model, and a development process to construct a business model by system dynamics. This research contribution, in the business administration academic, is confirmed the ability to explain business model using by system dynamics, and summed up a development process of constructing business model by system dynamics. The contribution in business practices is confirmed the system dynamics model can simulate the operation of the enterprise, and the simulation results provide as a reference for decision making. Subsequent research can use system dynamics base on the generalized model of this paper to a variety industry for business models research.
Liu, Fuping. "A system dynamics model for hydropower generation planning". 2001. http://hdl.handle.net/1993/2643.
Texto completoYI-ChenChen y 陳怡禎. "A System Dynamics Diffusion Model for Solar Energy". Thesis, 2010. http://ndltd.ncl.edu.tw/handle/86108415484795986606.
Texto completo國立成功大學
工業與資訊管理學系碩博士班
98
Due to the gradual depletion of fossil energy storage, the energy price is rising rapidly. Also Kyoto Protocol Agreement cut on the emission, the global energy industry has a dramatic change in recent years. In contrast, renewable energy has the advantages of clean, lower greenhouse emissions and self-production; many countries are devoted to the R&D of Renewable energy. Because of the production technique of Renewable energy is still not at mature level, the investment of developing Renewable energy need to be reevaluated. However, recent years, the solar energy industry is one of the high potential renewable energy can be developed. By incentive policy, it can encourage consumers use cost-benefit assessment to reevaluate the benefit of solar energy, and achieve the goal of popularize the solar energy market. The Diffusion model is often depicted on the new technological changes. This study used system dynamics as the research methods and tools which is good at dealing with complex dynamic systems and to feedback control theory, attempts to build a FIT policy for the installation of solar domestic consumers and business customers the dynamic model. This study focus on the policy of the solar installation solar system related to changes in the proliferation of speed to simulate different system elements of the system behaviors.Solar energy industry has been quite successful in German. After German government passed “Renewable Energy Law” in 2004, it provides financial subsidy to solar energy, which also caused the huge growth of solar industry. This study use fit policy as the basic to build a system dynamics model, and try to experiment and improve the model to provide policy-makers a strategic thinking under the financial incentives.
Yue-Tarng, You y 游玉堂. "System Dynamics Model of Combined Arms Land Combat". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/74244262943310969637.
Texto completo國防大學理工學院
國防科學研究所
100
The purpose of this dissertation is to develop an original model with operational potential resulting from the lethality of weapons to fully describe a combined arms land battle. First, by reviewing literature and studying modern operational simulation systems, this dissertation identifies the problems in defence quantitative analysis. Next, this dissertation develops a lethality coefficient that is able to consider the lethality of weapons. Third, this dissertation improves Lanchester mixed forces equations and then associates them with system dynamics to develop a precise and extensive combined arms land battle model. This dissertation then extends the model to AirLand battles described by three dimensional operations. Fourth, the developed models are verified using model validity tests to assess whether they approximate real systems. Finally, by simulating with some tactics scenarios, the developed model is able to fully describe the behaviour in modern combined arms land battles and reflect the synergy resulted from the interaction of strategies and force redeployment. Moreover, the human-based interface of the proposed model makes it easy for the user to model other scenarios. This dissertation also confirms the problems related to the use of combat reserve and the assignment of attack helicopter forces confused in real systems and provides new insight to enable a commander to make decisions by quantitative analysis in order to strengthen the confidence and quality of decision making.
Jung, Shuen-Bin y 鍾舜濱. "a system dynamics study for consignment stock model". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/64878963745073706265.
Texto completo逢甲大學
工業工程與系統管理學研究所
99
Many inventory approaches are applied to supply chain models. The consignment stock (CS) is one of popular inventory policies in supply chain networks of outsourcing or e-commerce. Most literatures focus on the implementation frameworks and the settings of maximum and minimum inventory stock levels. The aims of this paper are to study the adaptability and sensitivity of CS in the outsourcing-type supply chain. This study develops a system dynamics model to simulate many hypothetical situations. Impacts of system performance due to the uncertainty of demands, length of lead times, and level of stock-settings are studied via simulation results. Suggested strategies are then constructed based on the study results. These provide CS managers as implementation references.
Sontamino, Phongpat. "Decision support system of coal mine planning using system dynamics model". Doctoral thesis, 2014. https://tubaf.qucosa.de/id/qucosa%3A22960.
Texto completoHuang, Yi Ming y 黃毅銘. "Applying System Dynamics to Construct Military Capability Assessment Model". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/46868857151872731909.
Texto completo國防管理學院
國防決策科學研究所
96
Abstract The military development across Taiwan Strait is a system under complicated environment. It is a fact that the budget in national defense listed by China has been increasing and its military strength had led to an imbalanced situation across the Strait. This paper aims at discussing the gap of military strength constructed by and between Taiwan and China. How can we develop our military force and eliminate the imbalance shown in the military strength in a macro view under the realistic situation reflected across the Strait? Our budget policy in national defense is planned to maintain at 3% of GDP. Without considering the budget in national defense cast by China, can we effectively decrease the gap shown in military forces? Therefore, the core problem explored by this study lies in discussing the balance of military forces between Taiwan and China in a macro view and by systematic thinking and establishing a model for calculating military forces. Meanwhile, this study also focuses on the differences in military strength and discusses the legitimacy of the budget policies in national defense at the moment. This study applied system dynamics. Quantitative and qualitative models were established through systematic thinking. The “interactive models of military forces across the Strait” were established for analyzing the outcome and impacts arising from the imbalance of military forces between Taiwan and China. In this study, two hypotheses were proposed against military strategies across the Strait: (1) the quota devoted in national defense economies was positively and significantly related to military forces; and (2) China and Taiwan establish their military forces based on the military strength developed by the other. It is found that the time point with the occurrence of imbalance of military forces was in 2005 discussed from the systematic view. Currently, the military strength in Taiwan is 18 years lagging behind that in China. Based on “Presumed Analysis on Budget Policies”, this study found that the budget in national defense in Taiwan accounted relatively low if it was maintained at 3% of GDP while the budget in national defense in China was increasing. Consequently, the imbalance of military strength between Taiwan and China would get more obvious. An increase of the budget in national defense may be properly considered from a systematic point of view, which will effectively decrease the gap and imbalance of military strength across the Strait.
Guo, Nai-Wen y 郭乃文. "A Study of Computer Simulation Utilizing System Dynamics Model". Thesis, 1994. http://ndltd.ncl.edu.tw/handle/68770574016807607582.
Texto completo淡江大學
資訊工程研究所
82
The purpose of this study is to propose a modified algorithm for converting signed digraph to Forrester Diagram(FD) utilizing in system dynamics and a new approach for directly dealing with FD.At first,some important basic concepts( definitions,theorems and the steps of analyzing problems)are introduced.Next,the conversion method of signed digraph to FD, Burns algorithm and the Ramos modification on Burns algorithm are presented.A modi- fied algorithm and a new approach for manipulating FD are pro- posed.Conclusions and suggestions are given in the last. Burns algorithm and Ramos modified algorithm neglect the ele- ments of delays and multipliers which can often affect the result of system.In this study,signed digraph is converted to FD more completely and reasonably by adding the judgement of information delays.material delays and multipliers. Definitions and axioms are newly explained,the steps of algorithm are discussed in detail,and an illustrative example is given to verify the result. The past studies focus more attention on manipulation of causal diagram,but neglect the characteristic of system dy- namics which may be vary from time to time.Whenever FD has been completed,it will not easy to add or delete elements and cou- plings.In this study we present a new approach which make us can directly deal with FD by defining FD with attributed graphs. The operations over an FD and corresponding productions,and three algorithms are proposed to perform the work.An illu- strative example is given to show application result.
Chou, Chia-Jung y 周佳蓉. "A System Dynamics Model of Inventory Management In Hospital". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/98537067837257687132.
Texto completo義守大學
管理研究所碩士班
95
In recent years, national health insurance has been resulted a manifested impact on medical industry. Due to the practice of health insurance laws, the medical institutions have great difficulties in making reasonable profits. Therefore, the decision-makers of medical institutions tend to implement strategies to economize operation costs. The medical industry is a high-technology and massive employment industry. In particular, there is high difficulty in reducing the variable cost resulting from manpower. As a result, decision makers of medical institutions take great interest in the medical inventory management. In the one hand, the excessive stock will store up the stock cost; on the other hand, the insufficient stock will interrupt the medical treatment service and influence the medical treatment behavior. Therefore, the medical inventory management is considered the key target in medical institution management. The system dynamics can resolve the complicated system problems with multiple causes and effects and interrelationship. And it can find out the key mesh of cause and effect from the causal relationship with complicated various variables. Because the inventory management of the medical institutions is a complex and dynamic problems, it makes sense to apply the system thinking of system dynamics methodology to find the best strategy and approach for medical inventory management. . The study suggests characteristics of medical inventory management, and therefore proposes a three-role model i.e. the health insurance payment system, safety inventory and purchase. In other words, the medical inventory management is influenced by the interaction between the three roles and therefore the whole system behavior.
HUNGPENG, TENG y 彭登宏. "A System Dynamics Diffusion Model for White Light LED". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/74466003084040089591.
Texto completo國立成功大學
工業與資訊管理學系專班
101
Energy saving, environmental protection and safety of white LED, the emphasis on energy conservation and the prevention of global warming and other issues in the world, has become the new light source for the 21st century. LED bulbs save 40% energy than traditional bulbs at least, if the full replacement of the LED light source, and year on planet Earth can save $ 146 billion in energy costs, as well as a reduction of 600 million to 3 million tons of carbon dioxide emissions. The Japanese Government hope to achieve the purpose of energy saving white LED lighting products since the beginning of 1998 21st Century Light Project, as well as within the U.S. Department of Energy White Paper planning since 2000 to promote national semiconductor lighting research project. In this study, combined with the impact variables that specializes in dynamic and complex system with white LED lighting and feedback control theory-based system dynamics as the research methods and tools, and Bass diffusion model as the theoretical basis. Japanese white LED lighting development pace of the global leader in the evolution of the Japanese white LED lighting market is the focus of attention of the global industry. In this study, Japan, as the object of the simulation and analysis of Japan, white LED lighting market in the relevant laws and policy, energy conservation subsidy program for the proliferation of the entire market analysis and forecast to enter the market peak of the white lighting market in 2013, 2016 after the market will begin to face shrinking, LED lighting is bound to start another wave of industrial structure and product range of adjustment, expect this to provide policy makers and industrial development of a strategic thinking.
Almashaqbeh, Sahar, J. Eduardo Munive-Hernandez y M. Khurshid Khan. "A System Dynamics Model for Supply Chain Risk Assessment". 2019. http://hdl.handle.net/10454/17047.
Texto completoRisk assessment is a strategic approach for building resilient supply chains in different types of industries, including the energy sector. In case of an important event with a high level of the risk happening, it could jeopardize the operations of an organization. This could even interrupt the delivery of a product or service, damaging the profitability and reputation of the organization. This could also have a long-term effect on the strategic performance of the firm. Furthermore, key risks might be linked through causal interrelationships. Given the nature of a dynamic business environment, risk assessment also needs to consider the effect of time on those risks. Hence, it is important to understand the behaviour of a complex and dynamic system of interrelated risks to improve strategic decision making in the energy sector. This paper presents a System Dynamics model to assess risks with a supply chain perspective for power plants. The risk assessment model was validated with a case study of three power plants in the Middle East. The developed risk assessment model allowed to understand the long-term effect of risk on three performance indicators: availability of the power plant, efficiency, and operational and maintenance costs. The model provides a different approach to traditional risk assessment by proposing a dynamic modelling methodology.
El, Halabi Ezzat. "A System Dynamics Model of Automotive Recycling in Australia". Phd thesis, 2019. http://hdl.handle.net/1885/164194.
Texto completoGrobbelaar, Sara Susanna (Saartjie). "R&D in the national system of innovation : a system dynamics model". Thesis, 2007. http://hdl.handle.net/2263/26471.
Texto completoThesis (PhD (Engineering Management))--University of Pretoria, 2007.
Graduate School of Technology Management (GSTM)
PhD
Unrestricted