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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Performance measurement for reverse logistic processes (remanufacturing) : A review and future research needs

Srinandphol, Niphon January 2012 (has links)
Although the research in the field of the performance measurement system for remanufacturing activities is partial, an amount of literature and research has been performed regarding the performance measurement applicable for remanufacturing activities. The success of applying a performance measurement system on Remanufacturing relies on the relationship and inclusion of all perspectives; from customers to financial, as well as the remanufacturing process, and all challenges facing a remanufacturing process. Since the retrieval of used products is essential to the remanufacturers, the successful management of those specific processes contributes to an effective and efficient outcome of a Remanufacturing business’s performance outcome.
12

Sustainable and remanufactured fashion

Dadigamuwage, Geetha January 2012 (has links)
The purpose of this study is to explore remanufacturing as a sustainable waste management strategy for discarded clothing that may otherwise be directed to landfill. The central notion is that this is a response to the EU Waste Framework Directive 2008/98/EC which encourages the application of the 'waste hierarchy' - preference to eliminate waste at source, then, to reduce, reuse or recycle waste, and if impossible or impracticable, disposal in a responsible manner. Remanufacturing retrieves a product's inherent value when the product no longer fulfils the user's desired needs. The use of discarded clothes in a remanufacturing process could decrease clothing waste and contribute to resource conservation. Despite this, there has been little research into what is actually involved in the fashion remanufacturing process and how the process could be up-scalable to the mass market in order to have bigger environmental impact. A conceptual network consisting of textile sorters and recyclers, fashion remanufacturers and fashion retailers is examined through qualitative research. Experiential research and in-depth interviews were used to understand the process of fashion remanufacturing and the relationships that needed to be developed to up-scale the process in to mass market level. The fashion design process, as experienced by the designer, was described and the process models for individual processes were constructed and compared. The results of the comparison indicated a generic design process in fashion remanufacturing, showing the key phases. The generic remanufacturing process was compared with the mass market fashion design process to identify issues inherent when considering developing the process for mass market level and the potential for developing the conceptual framework was also examined. The originality of the investigation is that it identified the relationships between three key players in the conceptual network. A key factor that could account for business growth is the collaboration among key players along the reverse supply chain. The extent of business growth is dependent on the commitment and involvement of large fashion retailers.
13

Inventory control of remanufacturing systems. / CUHK electronic theses & dissertations collection

January 2010 (has links)
Key Words: inventory systems, product returns, closed-loop supply chain, remanufacturing, optimal strategies, approximation algorithms. / Product returns have become a significant part for many manufacturing, distribution, and retail systems. These products are returned under different operational conditions that require different remanufacturing effort/costs. In this thesis, we study several inventory models with remanufacturing, in particular, remanufacturing inventory systems with multiple types of returns, with non-identical processing leadtime, with random yields and with history dependent returns. Optimal manufacturing/remanufacturing policies for such inventory systems are fully or partially characterized. We have also developed effective algorithms or easy-to-implement heuristics for controlling such systems. / Tao, Zhijie. / Adviser: Sean X. Zhou. / Source: Dissertation Abstracts International, Volume: 73-01, Section: B, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 136-140). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.
14

Designing multi-objective reverse logistics networks using genetic algorithms

Yimsiri, Sanya. January 2009 (has links)
Thesis (Ph.D.)--University of Texas at Arlington, 2009.
15

The development of design metrics for remanufacturing

Hammond, Richard C., II 05 1900 (has links)
No description available.
16

Operational challenges of strategy execution

Kovach, Jeremy J. 27 August 2014 (has links)
Operations management studies the process of transforming material, labor, energy, or ideas into goods or services. Operations strategy outlines how firms leverage their capabilities to achieve competitive advantage. While developing or possessing these capabilities is paramount, they must be successfully leveraged to yield competitive advantage. This thesis comprises three essays which consider how firms can successfully implement their operations strategy, specifically within the context of supply chain management, remanufacturing, and project execution. The first essay (Chapter 2) empirically investigates the performance benefits of operational slack and operational scope in dynamic environments. We investigate how contingent investments in operational slack and operational scope moderate the relationship between unstable and unpredictable markets on firm performance. The second essay (Chapter 3) considers how a firm's organizational structure and incentives influence its decision to participate in remanufacturing. Through a principal-agent structure, we determine the optimal sales agent commission structures and product portfolio of new and remanufactured product for the firm. The third essay (Chapter 4) considers the challenges of executing strategic initiatives. We recognize the dual role of performance metrics, they communicate the target outcomes (i.e., what types of project outcomes are sought), and at the same time they incentivize the organizational impetus (i.e., effort commitment) from the stakeholders. Using a game theoretic model, we investigate the implications of the target outcome (focused or flexible definition of success) and project uncertainty, which are dependent on the organizational structure of the firm.
17

Optimizing usage of recycled material in a remanufacturing environment

Shah, Purvin. January 2005 (has links) (PDF)
Thesis (M.Sc.)--State University of New York at Buffalo, 2005. / Includes bibliographical references.
18

Implementering av återtillverkning baserat på fyra perspektiv / Implementation of remanufacturing based on four perspectives

Brehmer, Emma, Sjögren, Thomas January 2022 (has links)
I samband med dålig praktisk implementeringsgrad av den cirkulära metoden återtillverkning, var målet med arbetet att konstruera en modell som kan användas av företag i syfte att implementera återtillverkning. Modellen konstruerades utifrån perspektiven grunder och optimering. Optimering delades in i tre ytterligare perspektiv, där företags-, produkt-, och processperspektivet inkluderades. I processperspektivet inkluderades potentialen för optimering genom industri 4.0 (I4.0), på grund av återtillverkningens idag låga adoption av dessa. Arbetet är avgränsat till implementering av återtillverkning, nämnda perspektiv, samt I4.0 teknologier som identifierats optimera återtillverkningsprocessen. Lösningsmetoden för arbetet har grundat sig på litteratur och åtta genomförda intervjuer med respondenter från akademin samt industrin. Resultatet som framställs utifrån detta bygger på förutsättningar som exempelvis innefattar att fastställa förvärv av returprodukter, säkerställa kommunikation med intressenter, etablera kommunikation med original equipment manufacturer (OEM) och att beslutstagande kan underlättas med RFID, QR-koder, Big data, IoT och AR. Modellens beståndsdelar är samtliga förutsättningar inom respektive perspektiv. / Based on the poor practical implementation rate of the circular method of remanufacturing, the aim of this work was to construct a model that can be used by companies for the purpose of implementing remanufacturing. The model was constructed from the perspectives of basics and optimization. Optimization was divided into three additional perspectives, where the company-, product-, and processperspectives were included. In the process perspective, the potential for optimization through industry 4.0 (I4.0) was included, due to the currently low adoption of these by the remanufacturing industry. The work is limited to the implementation of remanufacturing, the mentioned perspectives, and I4.0 technologies that have been identified to optimize the remanufacturing process. The methodology for retrieving information has been based on literature and eight interviews with respondents from the academy and industry. The results are based on prerequisites that include, for example, establishing acquisition of returned products, ensuring communication with stakeholders, establishing communication with original equipment manufacturers (OEMs) and that decision-making can be favored by the usage of RFID, QR codes, Big data, IoT and AR. The components of the model are based on all the prerequisites within each perspective.
19

Standards in sustainable engineering and design

Plant, Alexander Victor Charles January 2012 (has links)
The financial and environmental costs associated with the manufacture and consumption of products may be reduced through design for efficient production, service life extension and post-consumer value recovery. In response to today’s need to design with consideration for the whole product life cycle, British Standards Institution (BSI) published BS 8887-1 (2006) Design for Manufacture, Assembly, Disassembly and End-of-life processing (MADE). Original research into the distribution and use of this first part of the MADE series is reported in this thesis. The organizations that accessed BS 8887-1 were categorised using their Standard Industrial Classification (SIC) code. The results are presented graphically in multilevel charts using the hierarchical structure of the SIC system. The study found that the majority of standards users that purchased or downloaded BS 8887-1 were companies in the manufacturing sector and particularly electronics producers. Educational institutions also showed high levels of interest in the standard. For the first time, the use of BS 8887-1 in practice has been investigated. The purpose was to discover if, why and how it is being used and to identify examples of its application in design practice. This was accomplished through semi-structured interviews with design practitioners from both industry and academia, thus helping to explain the results of the earlier SIC study. The information gathered through the interviews shows how BS 8887-1 has informed the design process and how it has been used in combination with various design and management techniques e.g. Advanced Product Quality Planning (APQP). These studies suggest that demand for the standard has been stimulated by the introduction of Extended Producer Responsibility (EPR) legislation, especially the Waste Electrical and Electronic Equipment (WEEE) directive. Importantly, the use of BS 8887-1 has been found to be helpful in winning new business and reducing the costs associated with manufacture, product maintenance and waste management. Based on the result of the qualitative research, a new model of the use of standards in the New Product Development (NPD) process is presented. The research was proposed by the Chairman of the BSI technical committee responsible for the BS 8887 series. The beneficiaries are BSI, industry and academia, since the investigation has shown BS 8887-1 to be of value, and has informed the continuing development of this series of standards. The thesis concludes by arguing for BS 8887 to become the basis of an International Organization for Standardization (ISO) standard in order to reach a wider audience. It also identifies a need for the standard’s design requirements to be supported with additional supplementary interpretation expanding on, and adding detail to, the information in the standard itself. Influenced by this research, at the time of writing a new BSI working group was being formed to consider developing BS 8887 as an ISO standard. BSI had also begun the process of commissioning a handbook to assist designers in the practical application of BS 8887 in industrial design.
20

Lean Remanufacturing : Material Flows at Volvo Parts Flen

Mähl, Maria, Östlin, Johan January 2007 (has links)
<p>The after market is of great importance of a company’s competitiveness and an increasing part of its revenues can be derived from it. Remanufacturing, in focus of this thesis, is a great business opportunity and the European market has an enormous growth potential. In the USA it is a major business and the automotive industry, targeted in this thesis, sells approximately 60 million remanufactured automotive products compared to 15 million products in Europe for an equivalent stock of vehicles</p><p>Compared to manufacturing, the remanufacturing environment is a more complex business due to the high degree of uncertainty in the production process, mainly caused by two factors: the quantity and quality of returned cores. Overall, seven characteristics that make the remanufacturing material flow harder to control have been identified. Emerging in the 1990’s the concept of Lean production is a well-known method for improving the manufacturing capabilities of a company. Lean production, which is said to increase productivity, decrease lead-time and costs and enhance quality, is widely adopted.</p><p>In this thesis, the purpose is to explore what characteristics of the remanufacturing environment that can hinder the implementation of Lean production principles of material flows and how Lean principles can be employed in a remanufacturing environment.</p><p>In accordance, the theories of Lean production and Remanufacturing are used and the research methodology chosen that of a case study. To assess material flow, the production flows of five major product groups in a car engine are assessed. For the collection of data, Value Stream Mapping (VSM) methodology has been used.</p><p>The main result about material flows and how Lean principles can be employed in a remanufacturing environment have resulted in eight generic proposals. The main conclusion from these proposals is that the inherent characteristics of variable processing times and uncertainty in materials recovered have major negative impact for implementing a lean production process. Vice versa, given an accurate supply of parts for reassembly, all the principles of Lean production can be fully implemented in the phases of reassembly and testing.</p>

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