Download or read book Capacity planning in stochastic and time dependent operations systems written by Jannik Vogel and published by BoD – Books on Demand. This book was released on 2020-03-20 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing and service firms use capacity planning to match capacity with demand. It is usually subject to stochastic and time-dependent variability in demand and capacity. This dissertation investigates how to set capacity in stochastic and time-dependent operations systems and analyzes the benefit of incorporating future demand changes in the decision making. The book contains the following three scientific essays that constitute the dissertation of Jannik Vogel. [1] Quality-speed trade-offs in dynamic service systems: Do future demand changes matter? [2] Planning capacity in stochastic MTO production systems with time-dependent demand: The clear the queue effect [3] The optimal time to adapt the processing rate in a make-to-order production system
Download or read book Capacity Planning in Stochastic and Time dependent Operations Systems written by Jannik Vogel and published by . This book was released on 2020 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Analysis and Capacity Planning of Multi stage Stochastic Order Fulfilment Systems with Levelled Order Release and Order Deadlines written by Mohring, Uta and published by KIT Scientific Publishing. This book was released on 2022-09-15 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Order fulfilment systems are forced to manage a volatile customer demand while meeting customer-required short order deadlines. To handle these challenges, we introduce the Strategy of Levelled Order Release (LOR) for workload balancing over time. The contributions of this work are (1) the workload balancing concept LOR, (2) a discrete-time Markov chain for performance analysis, and (3) an algorithm for capacity planning under performance constraints in order fulfilment systems with LOR.
Download or read book Inventory and Production Management in Supply Chains written by Edward A. Silver and published by CRC Press. This book was released on 2016-12-19 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by a team of experts, the new edition of this bestseller presents practical techniques for managing inventory and production throughout supply chains. It covers the current context of inventory and production management, replenishment systems for managing individual inventories within a firm, managing inventory in multiple locations and firms, and production management. The book presents sophisticated concepts and solutions with an eye towards today’s economy of global demand, cost-saving, and rapid cycles. It explains how to decrease working capital and how to deal with coordinating chains across boundaries.
Download or read book Handbook of Healthcare System Scheduling written by Randolph Hall and published by Springer Science & Business Media. This book was released on 2011-11-25 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume captures and communicates the best thinking on how to improve healthcare by improving the delivery of services -- providing care when and where it is needed most -- through application of state-of-the-art scheduling systems. Over 12 chapters, the authors cover aspects of setting appointments, allocating healthcare resources, and planning to ensure that capacity matches needs for care. A central theme of the book is increasing healthcare efficiency so that both the cost of care is reduced and more patients have access to care. This can be accomplished through reduction of idle time, lessening the time needed to provide services and matching resources to the needs where they can have the greatest possible impact on health. Within their chapters, authors address: (1) Use of scheduling to improve healthcare efficiency. (2) Objectives, constraints and mathematical formulations. (3) Key methods and techniques for creating schedules. (4) Recent developments that improve the available problem solving methods. (5) Actual applications, demonstrating how the methods can be used. (6) Future directions in which the field of research is heading. Collectively, the chapters provide a comprehensive state-of-the-art review of models and methods for scheduling the delivery of patient care for all parts of the healthcare system. Chapter topics include setting appointments for ambulatory care and outpatient procedures, surgical scheduling, nurse scheduling, bed management and allocation, medical supply logistics and routing and scheduling for home healthcare.
Download or read book Stochastic Models for Capacity Planning in Healthcare Delivery written by Asli Özen and published by . This book was released on 2014 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. healthcare system has become far too complex and costly to sustain and operations research has much to contribute in improving health systems by addressing a large spectrum of problems. We study capacity planning in healthcare while considering the case-mix of patients, using stochastic modeling in different application areas: primary care, inpatient bed allocation and (spine) surgery scheduling. This body of work was developed over four years of collaborative research with hospitals and healthcare providers. The main objective of our research in primary care is to optimize the patient mix of primary care physicians in a group practice to maximize patient-clinician continuity and access. To model case-mix, we use the number of simultaneous chronic conditions (comorbidities) a patient has as a predictor of the number of appointment requests. We later extend the optimization framework and use queuing theory to develop methodologies to quantify and evaluate access to care and continuity of care for patient visits with different urgencies. From an inpatient care perspective, we develop an empirically calibrated simulation model to represent a time-varying multi-server queuing network model with multiple patient classes. Our main focus has been on quantifying the impact of discharge profiles to alleviate inpatient bed congestions. The main objective of our research in surgical care is to create better patient access and improve revenue as a result of increased surgical capacity with more efficient schedules and an improved patient mix, using a multi-stage mixed integer optimization.
Download or read book Capacity and Inventory Planning for Make to Order Production Systems written by Klaus Altendorfer and published by Springer Science & Business Media. This book was released on 2013-07-31 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents different models for the simultaneous optimization problem of capacity investment and work release rule parameterization. The overall costs are minimized either including backorder costs or considering a service level constraint. The available literature is extended with the integration of a distributed customer required lead time in addition to the actual demand distribution. Furthermore, an endogenous production lead time is introduced. Different models for make-to-order production systems with one or multiple serial processing stages are developed. Capacity investment is linked to the processing rates of the machines or to the number of the machines. Results are equations for service level, tardiness, and FGI lead time in such a production system. For special cases with M/M/1 and M/M/s queues explicit solutions of the optimization problems or optimality conditions concerning capacity investment and work release rule parameterization are provided.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Decisions for Artificial Intelligence written by Yasuo Narukawa and published by Springer. This book was released on 2007-08-21 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decision modeling is a key area in the developing field of AI, and this timely work connects researchers and professionals with the very latest research. It constitutes the refereed proceedings of the 4th International Conference on Modeling Decisions for Artificial Intelligence, held in Kitakyushu, Japan, in August 2007. The 42 revised full papers presented together with 4 invited lectures are devoted to theory and tools, as well as applications.
Download or read book Essays in Production Project Planning and Scheduling written by P. Simin Pulat and published by Springer Science & Business Media. This book was released on 2013-12-02 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Preface: This festschrift is devoted to recognize the career of a man who not only witnessed the growth of operations research from its inception, but also contributed significantly to this growth. Dr. Salah E. Elmaghraby received his doctorate degree from Cornell University in 1958, and since then, his scholarly contributions have enriched the fields of production planning and scheduling and project scheduling. This collection of papers is contributed in his honor by his students, colleagues, and acquaintances. It offers a tribute to the inspiration received from his work, and from his guidance and advice over the years, and recognizes the legacy of his many contributions. Dr. Elmaghraby is a pioneer in the area of project scheduling (in particular, project planning and control through network models, for which he coined the term ‘activity networks’.) In his initial work in this area, he developed an algebra based on signal flow graphs and semi-Markov processes for analyzing generalized activity networks involving activities with probabilistic durations. This work led to the development of what was later known as the Graphical Evaluation and Review Technique (GERT), and GERT simulation models. He has made fundamental contributions in determining criticality indices for activities, in developing methodologies for project compression and time/cost analysis, and in the use of stochastic and chance-constrained programming and Petri Nets for the analysis of activity networks. This volume brings together fourteen contributions, which can be viewed under the following three main themes: operations research and its application in production planning; project scheduling, and production scheduling, inspired by, and in many cases based on, Dr. Elmaghraby’s work in these areas. The first five chapters are devoted to the first theme, followed by four chapters each devoted to the other two, respectively. An additional chapter is devoted to the vulnerability of multimodal freight systems.
Download or read book Smart Energy Strategies written by and published by vdf Hochschulverlag AG. This book was released on 2008 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enormous challenge of creating a longterm sustainable energy system calls for the participation of engineers, natural and social scientists. They can contribute both through their research and by helping to craft strategies that steer the future development of the system. A sustainable energy system cannot be developed by technical fixes alone; action is required on a broad front, including institutional and regulatory changes. There is an abundance of scientific evidence on which to base decisions on how to proceed. Still, research has a crucial role to play as well.Smart Energy Strategies highlights smart solutions: advances in technical and social-science energy research, particularly advances related to new information technology (e.g. control and communication); and experience with targeted applications of information technology in the supply and consumption of energy. The conference has focused on smart strategies taking into account current technical and institutional systems, with their inertia and shortcomings; future energy-related challenges: energy security; the growing energy needs of the disadvantaged; and unintended consequences of energy systems, particularly climate change but also uncontrolled money flows; smart technical, institutional, and regulatory mechanisms for meeting these challenges.
Download or read book Columbia Business School written by Brian Thomas and published by Columbia University Press. This book was released on 2016-11-22 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring interviews with topflight scholars discussing their work and that of their colleagues, this retrospective of the first hundred years of Columbia Business School recounts the role of the preeminent institution in transforming education, industry, and global society. From its early years as the birthplace of value investing to its seminal influence on Warren Buffett and Benjamin Graham, the school has been a profound incubator of ideas and talent, determining the direction of American business. In ten chapters, each representing a single subject of the school's research, senior faculty members recount the collaborative efforts and innovative approaches that led to revolutionary business methods in fields like finance, economics, and accounting. They describe the pioneering work that helped create new quantitative and stochastic tools to enhance corporate decision making, and they revisit the groundbreaking twentieth-century marketing and management paradigms that continue to affect the fundamentals of global business. The volume profiles several prominent centers and programs that have helped the school adapt to recent advancements in international business, entrepreneurship, and social enterprise. Columbia Business School has long offered its diverse students access to the best leaders and thinkers in the industry. This book not only reflects on these relationships but also imagines what might be accomplished in the next hundred years.
Download or read book Production Planning with Capacitated Resources and Congestion written by Hubert Missbauer and published by Springer Nature. This book was released on 2020-02-26 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of recent developments in production planning. The monograph begins with an introductory chapter reviewing the need for these production planning models, that operate by determining time-phased releases of work into the facility or supply chain, relating these to the Manufacturing Planning and Control (MPC) and Advanced Planning and Scheduling (APS) frameworks, that form the basis of most academic research and industrial practice. The extensive body of work on Workload Control is also placed in this context, and proves the need for improved models with a discussion of the difficulties, these approaches encounter. The next two chapters present a detailed review of the state of the art in optimization models based on exogenous planned lead times, and examines the cases where these can take both integer and fractional values. The difficulties arising in estimating planned lead times are consistent with factory behavior which are highlighted, noting that many of these lead to non-convex optimization models. Attempts to address these difficulties by iterative multimodel approaches, that combine simulation and mathematical programming, are also discussed in detail. The next three chapters of the volume address the set of techniques developed using clearing functions, which represent the expected output of a resource in a planning period, as a function of the expected workload of the resource, during that period. The chapters on this subject propose a basic optimization model for multiple products, discuss the difficulties of this model and some possible solutions. It also reviews prior work, and discuss a number of alternative formulations of the clearing function concept with their respective advantages and disadvantages. Applications to lot sizing decisions and a number of other specific problems are also described. This volume concludes with an assessment of the state of the art described in the volume, and several directions for future work.
Download or read book Selected Topics in Manufacturing written by Elisabetta Ceretti and published by Springer Nature. This book was released on 2020-11-08 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected contributions on a wide range of scientific and technological areas covered by AITeM (the Italian Association of Manufacturing). It discusses the following topics: additive manufacturing, advanced and unconventional machining and processes, material removal processes, foundry and forming, tools and machine tools, assembly/disassembly, joining materials and material properties, quality metrology and material testing, manufacturing systems engineering, sustainable manufacturing, smart manufacturing and cyber-physical systems, education in manufacturing and human factors, industrial applications. Written by young AITeM associates, the contributions reflect the multifaceted nature of the research in manufacturing, which takes advantage of emergent technologies and establishes interdisciplinary connections with various scientific and technological areas to move beyond simple product fabrication and develop a complex and highly interconnected value creation processes ecosystem pursuing high-value-added products to compete globally.
Download or read book Research Handbook on Services Management written by Davis, Mark M. and published by Edward Elgar Publishing. This book was released on 2022-08-05 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive Research Handbook reflects the latest research breakthroughs and practices in services management. Addressing services management from a broader strategic perspective, it delves into the key issues of analytics and service robots, and their potential impact. Edited by the late Mark M. Davis, it represents an early foray into the new frontier of services management and provides insights into the future of the field.
Download or read book Advances in Conceptual Modeling Theory and Practice written by John F. Roddick and published by Springer Science & Business Media. This book was released on 2006-10-24 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed joint proceedings of seven international workshops held in conjunction with the 25th International Conference on Conceptual Modeling, ER 2006, in Tucson, AZ, USA in November 2006. The 39 revised full papers presented together with the outlines of three tutorials were carefully reviewed and selected from 95 submissions.
Download or read book Advanced Manufacturing An ICT and Systems Perspective written by Marco Taisch and published by CRC Press. This book was released on 2007-03-15 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manufacturing plays a vital role in European economy and society, and is expected to continue as a major generator of wealth in the foreseeable future. A competitive manufacturing industry is essential for the prosperity of Europe, especially in the face of accelerating deindustrialisation. This book provides a broad vision of the future of manufac
