Download or read book Development of Simulation Models for Inventory Systems written by Marwan Abyad and published by . This book was released on 1984 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation of Inventory written by Samir Izzedine Lababidi and published by . This book was released on 1988 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with the development of mathematical and simulation models with their applications to inventory systems. Two structures of inventory systems are considered: (i) single source supplying a single location and a single source supplying two locations in parallel allowing for transshipment between the two locations. Our objective is to find the optimum quantity to be held in the reserve stocks as extra inventory intended for use in emergency situations when normal operating inventory is insufficient to handle consumption requirements. A mathematical model for the first structure is presented with the assumptions of constant consumption rate and a fixed time length between the occurrences of supply interruptions. This model is then simulated after releasing the above assumptions and assigning probability distributions to the consumption rate and to the time between interruptions. Since simulation cannot determine a policy for finding the optimum quantity to be stocked in reserve inventory, an optimization process is applied on the simulation. In the same way we present the mathematical model of the second structure and apply simulation on it. It is found that mathematical modeling is not easy to apply without using the above assumptions which makes the simulation an attractive tool to attack complex systems.

Download or read book Modeling and Simulating Business Dynamics written by Juan García and published by . This book was released on 2019-10-12 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: INDEX OF PAPERS Paper 1. New Technologies and Employment Paper 2. Dynamic Balanced Scorecard Paper 3. The Procurement Process Paper 4. Scenario Planning Workshop Paper 5. Risk Analysis Methods Paper 6. Behavioural Stereotypes in Socio-Economic Systems Paper 7. Enterprise Resource Planning Paper 8. Marketing Research Paper 9. Group Model Building Paper 10. Business Dynamics Simulator Paper 11. Strategic Decision Support Paper 12. Rare Earth Elements Paper 13. Building a Learning Lab Paper 14. Human Resource Planning INDEX OF MODELS FOR BEGINNERS 1. Population Growth 2. Production and Inventory 3. How to Work More and Better 4. Project Dynamics 5. Innovatory Companies 6. Quality Control 7. Building Games and Learning Labs 8. Input Output Controls COLLECTION OF BOOKS Selected papers on System Dynamics 1.Agriculture and food production ISBN: 9781686984570 2.Business ISBN: 9781686997556 3.Ecology and the environment ISBN: 9781687000323 4.Economy: money and finances ISBN: 9781687003133 5.Energy ISBN: 9781687004932 6.Healthcare ISBN: 9781687006745 7.Housing and urban dynamics ISBN: 9781687008367 8.Supply chain and industrial dynamics ISBN: 9781687009975 9.Labor, human resources and social ISBN: 9781687015389 10.Sustainable development ISBN: 9781700341600 Detailed content in http://atc-innova.com/papers.htm ABOUT THE AUTHOR Juan Martin Garcia, expert in System Dynamics and System Thinking, Ph. D. Industrial Engineer UPC (Spain) and Postgraduate Diploma in Business Dynamics at the Sloan School of Management of the Massachusetts Institute of Technology (USA). He has been teacher of building simulation models during twenty years in several universities and now he teaches the online courses of Vensim in http://vensim.com/vensim-online-courses/

Download or read book Systems Modeling and Computer Simulation written by Naim Kheir and published by Routledge. This book was released on 2018-12-12 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition describes the fundamentals of modelling and simulation of continuous-time, discrete time, discrete-event and large-scale systems. Coverage new to this edition includes: a chapter on non-linear systems analysis and modelling, complementing the treatment of of continuous-time and discrete-time systems and a chapter on the computer animation and visualization of dynamical systems motion.

Download or read book Development of a Dynamic Simulation Model for Planning Physical Distribution Systems written by Omar Keith Helferich and published by . This book was released on 1970 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Discrete Simulation Models written by T. Cooper and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation based Meta optimization in Vendor Managed Inventory Systems written by and published by . This book was released on 2007 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vendor-managed inventory (VMI) is a supply chain coordination program in which the manufacturer takes full control of inventory management for retailers. The retailer does not have the responsibility of monitoring inventory or placing orders. Although the VMI philosophy has been embraced in a number of industries, there are few research works that attempt to develop analytical models for it because of the complexity in modeling. Simulation has been used to model VMI systems in the literature, but none of the existing works seek optimal inventory policies. Hence, a methodology based on simulation optimization has been developed here to obtain the optimal inventory policies in VMI systems. The solution methodology for the simulation model is based on two paradigms: a dynamic slave paradigm, which optimizes the inventory replenishment policy for the retailers, and a static master paradigm, which optimizes the inventory replenishment policy for the distribution center (DC). The slave problem is modeled as a semi-Markov decision problem. Approximate dynamic programming, also called reinforcement learning, is used to optimize the inventory replenishment policies for the retailers. For the master paradigm, a genetic algorithm is applied to optimize the (Q, R) policy for the inventory replenishment at the DC. Numerical examples are presented which show that the methodology based on reinforcement learning and genetic algorithms outperforms some well-known benchmarking algorithms.

Download or read book System Zoo 3 Simulation Models written by Hartmut Bossel and published by BoD – Books on Demand. This book was released on 2007 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the book: Mathematical modeling and computer simulation make it possible to understand and control the dynamic processes taking place in complex systems. Simulation provides insights into the often surprising diversity of possible behaviors, and allows identifying possibilities for intervention and options for alternative development. About one hundred simulation models from all areas of life are fully documented in the three volumes of the 'System Zoo'. They can be quickly implemented and easily operated using freely available system dynamics software. Volume 3 of the System Zoo contains simulation models of economic and social systems and global development, among them: production, stocks and orders, marketing and consumption, competition, life planning, employment, ecotax, escalation, dependence, aggression, population and community development, debt crisis, globalization, the world models of the Club of Rome (by Forrester and the Meadows group) and examples of nonnumerical knowledge processing applied to impact assessment and decision processes. The System Zoo collection of simulation models is particularly well-suited for teaching, training, and research projects at all levels from high school to university, and for individual study. Volume 1 of the System Zoo contains simulation models of elementary systems, and of systems from the fields of physics and engineering. Volume 2 of the System Zoo presents simulation models related to climate, vegetation, ecosystems and resources. About the author: Hartmut Bossel is Professor Emeritus of environmental systems analysis. He taught for many years at the University of California in Santa Barbara and the University of Kassel, Germany, where he was director of the Center for Environmental Systems Research until his retirement. He holds an engineering degree from the Technical University of Darmstadt, and a Ph.D. degree from the University of California at Berkeley. With a background in engineering, systems science, and mathematical modeling, he has led many research projects and future studies in different countries, developing computer simulation models and decision support systems in the areas of energy supply policy, global dynamics, orientation of behavior, agricultural policy, and forest dynamics and management. He has written numerous books on modeling and simulation of dynamic systems, social change and future paths, and has published widely in the scientific literature in several fields.

Download or read book Modelling an Inventory Management System Using a System Dynamic Approach written by Leila Tavangar and published by . This book was released on 2010 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: System Dynamics (SD) is a methodology for analyzing complex systems and problems with the aid of computer simulation software. It provides a common foundation that can be applied to understand and influence how things change over the time especially in very complex systems. Inventory is one of the most visible and tangible aspects of business. Managing any manufacturing firm inventories is one of the fundamental issues to the managers. High-level inventories have both cost and benefits to the firm and having the right amount of inventory is a critical aspect. The performance of a supply chain influences the overall performance of a firm. Looking at the whole supply chain is more efficient to study the inventories. A supply chain by nature is a complex system. Parameters like new technologies, intricacy of products, and integrated supply chains enhance this complexity. Based on the problems of supply chain management and the capabilities of system dynamics in modelling complex systems, SD modelling approach was selected for this research. This thesis focuses on inventories of a Nuts and Bolts manufacturing firm supply chain in Iran. Piche Setareh Yazd (PSY) is a downstream of steel industry and all the changes in steel industry affects its supply chain. Moreover, other factors such as inflation, international sanctions and some domestic issues influence the PSY's supply chain. All these factors in addition to the natural complexity of a supply chain make the PSY's supply chain a good candidate for SD modelling. The model of PSY's supply chain system developed using the system dynamics methodology. VENSIM DSS software was used for simulation of the model. The developed model was tested for usefulness, validity, and robustness with different standard tests. The tests results showed that the developed model structure is robust in different conditions and is not sensitive to the change of model parameters. Therefore, it can represent a true behaviour of the PSY's supply chain under different scenarios. This research demonstrated that SD approach is a proper tool for modelling and simulating a complex supply chain system in an instable environment. Using SD approach to model a supply chain management system could improve the understanding of managers about the true behaviour of inventories and help them to make their decisions more confidently and correctly.

Download or read book Decision Models for Inventory Management written by Robert B. Fetter and published by . This book was released on 1961 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developing Modular Oriented Simulation Models Using System Dynamics Libraries written by Christian K. Karl and published by Springer. This book was released on 2016-06-13 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SpringerBrief introduces the development and practical application of a module-oriented development framework for domain specific system-dynamic libraries (SDL approach), which can be used in the simulation of multi-causal and dynamic relationships on different levels of an industry, as an example the construction industry. Multidisciplinary research and development teams, scientists from different domains as well as practitioners can develop SDL units from varying perspectives based on this approach. For example, the explanation of the risk situation of a company, the identification and evaluation of project risks, endangered operational procedures on various functional levels, or to improve the understanding of the decision making process in detail. This book is an excellent source for researchers, programmers and practitioners. It enables the development of suitable simulation systems from the beginning and demonstrates that it is possible to connect the development of simulation models and daily work. It provides advanced-level students from different domains with a comprehensive overview and clear understanding of a new and valuable modeling technique.

Download or read book Supply Chain Simulation written by Francisco Campuzano and published by Springer Science & Business Media. This book was released on 2011-07-16 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supply Chain Simulation allows readers to practice modeling and simulating a multi-level supply chain. The chapters are a combination of the practical and the theoretical, covering: knowledge of simulation methods and techniques, the conceptual framework of a typical supply chain, the main concepts of system dynamics, and a set of practice problems with their corresponding solutions. The problem set includes illustrations and graphs relating to the simulation results of the Vensim® program, the main code of which is also provided. The examples used are a valuable simulation tool that can be modified and extended according to user requirements. The objective of Supply Chain Simulation is to meet the demands of supply chain simulation or similar courses taught at the postgraduate level. The “what if” analysis recreates different simulation scenarios to improve the decision-making process in terms of supply chain performance, making the book useful not only for postgraduate students, but also for industrial practitioners.

Download or read book System Zoo 1 Simulation Models written by Hartmut Bossel and published by BoD – Books on Demand. This book was released on 2007 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the book: Mathematical modeling and computer simulation make it possible to understand and control the dynamic processes taking place in complex systems. Simulation provides insights into the often surprising diversity of possible behaviors, and allows identifying possibilities for intervention and options for alternative development. About one hundred simulation models from all areas of life are fully documented in the three volumes of the 'System Zoo'. They can be quickly implemented and easily operated using freely available system dynamics software. Volume 1 of the System Zoo contains simulation models of elementary processes, and of complex systems from physics and engineering, among them: exponential and logistic growth, oscillations, delays, and storage; phenomena of infection, transition, and overload; complex systems with limit cycles, multiple equilibrium points and chaotic attractors; and applications from control engineering, flight dynamics, fluid flow and heat conduction. The System Zoo collection of simulation models is particularly well-suited for teaching, training, and research projects at all levels from high school to university, and for individual study. Volume 2 of the System Zoo contains simulation models related to climate, vegetation, ecosystems and resources. Volume 3 deals with systems and processes found in economy and society, and with long-term global development. About the author: Hartmut Bossel is Professor Emeritus of environmental systems analysis. He taught for many years at the University of California in Santa Barbara and the University of Kassel, Germany, where he was director of the Center for Environmental Systems Research until his retirement. He holds an engineering degree from the Technical University of Darmstadt, and a Ph.D. degree from the University of California at Berkeley. With a background in engineering, systems science, and mathematical modeling, he has led many research projects and future studies in different countries, developing computer simulation models and decision support systems in the areas of energy supply policy, global dynamics, orientation of behavior, agricultural policy, and forest dynamics and management. He has written numerous books on modeling and simulation of dynamic systems, social change and future paths, and has published widely in the scientific literature in several fields.

Download or read book The Development of Inventory Lot sizing Model and Production and Inventory Planning Simulation Models for Remanufacturing Systems written by Magdalene Andrew Munot and published by . This book was released on 2010 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, remanufacturing has become an important production activity in many companies; a phenomenon that results from the increasingly strict environmental regulations, growing customer awareness of green environment and economical benefit. Nevertheless, remanufacturing systems remain uncertain and complex in nature due to the existence of several unique characteristics. In this context, this thesis provides a significant contribution to advancing the current knowledge on remanufacturing through the development and analysis of four valuable decision-making tools for remanufacturing.The first decision-making tool is developed to address inventory lot-sizing problems in a hybrid remanufacturing-manufacturing system with varying remanufacturing fractions. The existing inventory lot-sizing models mainly implement a constant remanufacturing lot-size, which results in delay of remanufacturing process, carryover of remanufacturable stocks after each remanufacturing process and storage of remanufacturable items over the entire manufacturing interval. Accordingly, a new integrated inventory lot-sizing model is developed, which implements variable remanufacturing lot-sizes to address the problems of varying remanufacturing fractions in a hybrid remanufacturing-manufacturing system. The new integrated inventory lot-sizing model is utilised to concurrently determine the optimal lot-sizes for remanufacturing, number of remanufacturing lots and lot-sizes for manufacturing. Case studies show that the new integrated inventory lot-sizing model leads to a cost saving when compared to a benchmark model that implements a constant remanufacturing lot-size.The second decision-making tool, an integrated production and inventory planning simulation model is developed to address a problem to determine the optimal remanufacturing policy for implementation in a remanufacture-to-stock system with varying inspection yields and availability of used products. Four-variants of the integrated production and inventory planning simulation models are developed and analysed, where different remanufacturing policies are examined for processing two different quality remanufacturable groups. Case studies show that for processing two different quality remanufacturable groups in a remanufacture-to-stock system with varying inspection yields and availability of used products, a policy which specifies simultaneous processing and utilising dedicated resources emerges as the optimal remanufacturing policy. By contrast, when resources are finite, a policy that specifies sequential processing and switching between the two quality remanufacturable groups to sustain production appears as the optimal remanufacturing policy.Unlike the second tool, the third decision-making tool is developed to address a problem to determine the optimal remanufacturing policy for implementation in a remanufacture-to-order system with varying inspection yields and availability of used products. Three-variants of the integrated production and inventory planning simulation models are developed and analysed, in which different remanufacturing policies are assessed for processing two different quality remanufacturable groups. Case studies show that for processing two different quality remanufacturable groups in a remanufacture-to-order system with varying inspection yields and availability of used products, a policy that specifies sequential processing and switching between the two quality remanufacturable groups to sustain production emerges as the optimal remanufacturing policy.Finally, the fourth decision-making tool is developed to address a problem to determine the optimal remanufacturing strategy for implementation in a remanufacturing system. Two-variants of the integrated production and inventory planning simulation models are developed and analysed, where different remanufacturing strategies are investigated for processing two different quality remanufacturable groups. Case studies show that for processing two different quality remanufacturable groups, a strategy that specifies carrying some finished products inventory at all times (i.e., a remanufacture-to-stock) emerges as the optimal remanufacturing strategy.

Download or read book Guide to Modeling and Simulation of Systems of Systems written by Bernard Zeigler and published by Springer Science & Business Media. This book was released on 2012-10-22 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This user’s reference is a companion to the separate book also titled “Guide to Modelling and Simulation of Systems of Systems.” The principal book explicates integrated development environments to support virtual building and testing of systems of systems, covering in some depth the MS4 Modelling EnvironmentTM. This user’s reference provides a quick reference and exposition of the various concepts and functional features covered in that book. The topics in the user’s reference are grouped in alignment with the workflow displayed on the MS4 Modeling EnvironmentTM launch page, under the headings Atomic Models, System Entity Structure, Pruning SES, and Miscellaneous. For each feature, the reference discusses why we use it, when we should use it, and how to use it. Further comments and links to related features are also included.

Download or read book Growth Dynamics in New Markets written by Martin F. G. Schaffernicht and published by John Wiley & Sons. This book was released on 2018-04-17 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: An innovative simulation-based approach for strategic decision making when launching new products Growth Dynamics in New Markets contains a dynamic case study and simulations that reveal what it takes to successfully introduce a product into a new market. Written by experts in the field, the text and companion website include a compelling simulation game and a variety of simulation models. Using the simulation game and computer models, readers are challenged to design and put in place a strategy about product introduction and competitive behavior. The simulation models build on each other to help to arrive at a comprehensive understanding of product uptake as well as market development and competitive dynamics. The authors present different approaches for enhancing the models and offer guidance for applying them to real-world problems. This groundbreaking text clearly shows how to develop maps of dynamic systems, formulate candidate policies and evaluate them based on the simulations. It also reveals how to use computer simulations to understand what decisions could and should be made, when to make them and how intensive they should be. The authors present an interactive approach that: Contains an innovative combination of a case study, simulation game and simulation models for developing the skills to introduce a product to the marketplace Offers targeted questions that help to enhance the understanding of the material presented Presents detailed answers and solutions to a number or real-world business challenges Features video tutorials that explain how the simulation experiments are implemented and interpreted Aids in the development an action-oriented, pragmatic understanding of the underlying forces in business Designed for students of business administration, management, industrial engineering, informatics, engineering, and public policy, Growth Dynamics in New Markets offers an innovative approach that combines the practice of dynamic reasoning and the use of simulation to design and test possible policies.

Download or read book Simulation Based Engineering of Complex Systems written by John R. Clymer and published by John Wiley & Sons. This book was released on 2009-03-16 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hands-on approach to understanding, designing, analyzing, and evaluating complex systems During the last few years, Simulation-Based Systems Engineering (SBSE) has become an essential tool for the design and evaluation of complex systems. This is the first book to cover the basic principles of complex systems through the use of hands-on experimentation using an icon-based simulation tool. Utilizing the accompanying software tool ExtendSim, which works with the OpEMCSS library, readers are invited to engage in simulation-based experiments that demonstrate the principles of complex systems with an emphasis on design, analysis, and evaluation. A number of real-world examples are included to demonstrate how to model complex systems across a range of engineering, business, societal, economic, and scientific disciplines. Beginning with an introduction to SBSE, the book covers: Simulation concepts and building blocks Systems design and model development Markov model development Reliability processes Queuing theory in SBSE Rule-based learning and adaptation Agent motion and spatial interactions Multi-agent system of systems Assuming only a very basic background in problem-solving ability, this book is ideal as a textbook for students (a homework solution manual is also available) and as a reference book for practitioners in industry.