Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Value of quality information of returns in product recovery management
Download
index.pdf
Date
2009
Author
Atabarut, Altan
Metadata
Show full item record
Item Usage Stats
219
views
75
downloads
Cite This
Returned products of many industries are transported backwards through supply chains for recovery, thus forming “closed-loop supply chains”. Benefits, forthcoming with more effective management of recovery of returns are gaining importance. However, some issues, such as lack of information required to assess the quality of the returned products, may translate into critical uncertainties in the product recovery decisions and prevent closed-loop supply chains from operating efficiently. Hence, it is envisaged that significant economies may be attained by increasing the quantity of information fed into the planning decisions related to returned products. Thus, the objective of this study is to test the hypothesis that ready availability of perfect quality grade information associated with returned products by means of “embedded systems”, may lead to improved over all performance of recovery operations. To this end, in this thesis, linear programming models of generic multistage recovery processes are built. It is demonstrated by computational studies that significant gains may be obtained especially in environments where the prices of recovered products are decreasing in time.
Subject Keywords
Industrial engineering.
,
Quality Grading.
URI
http://etd.lib.metu.edu.tr/upload/12610453/index.pdf
https://hdl.handle.net/11511/18440
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Periodic-review inventory systems with exogenous and endogenous replenishment lead times
Aşcı, Murtaza; Avşar, Zeynep Müge; Department of Industrial Engineering (2007)
In this thesis, two-echelon systems with exogenous and endogenous lead times are studied for the orders placed by the retailer(s) from the supplier. The retailer(s) employ periodic-review base-stock policy, namely (R,S) policy. For the case the demand during review period is i.i.d. and the probability distribution is Normal for each review period, a new method is proposed for exogenous lead time case under stationary policy. The results of the proposed method is then compared with the results of the existin...
Multi-item inventory-routing problem for an FMCG company
Zerman, Erel; Kırca, Ömer; Department of Industrial Engineering (2007)
In this study, inventoryrouting system of a company operating in Fast Moving Consumer Goods (FMCG) industry is analyzed. The company has decided to redesign distribution system by locating regional warehouses between production plants and customers. The warehouses in the system are all allowed to hold stock without any capacity restriction. The customers are replenished by the warehouse to which they have been assigned. Customer stocks are continuously monitored by the warehouse and deliveries are to be sch...
Optimization models for public debt management
Alver, Mustafa Uğur; Çağlar, Güven; Department of Industrial Engineering (2009)
Management of public debt is crucial for every country. Public debt managers make efforts to both minimize the cost of borrowing and to keep debt stock at sustainable levels. However, due to competition for funds in the continuously changing and developing financial markets, new threats and opportunities appear constantly. Public debt managers construct borrowing policies in order to minimize the cost of borrowing and also to decrease risk by using various borrowing instruments. This thesis presents a mathe...
Value of disruption information in an EOQ environment
Emer, Deniz Esin; Bakal, İsmail Serdar; Bayındır, Zeynep Pelin; Department of Industrial Engineering (2014)
Supply disruptions have important effects on supply chains causing serious financial and intangible damages. In this study, we consider an infinite horizon, continuous review inventory model with deterministic stationary demand where supply is subject to disruption. The supply process alternates between two states randomly: one in which it functions normally ("ON" period) and one in which it is disrupted ("OFF" period). Unsatisfied demand is backordered in off periods. In this setting we seek the value of d...
Analysis of a two-echelon multi-item inventory system with postponement
Eryılmaz, Hande; Meral, Fatma Sedef; Department of Industrial Engineering (2010)
Increased product proliferation and global competition are forcing companies within the supply chain to adopt new strategies. Postponement is an effective strategy that allows companies to be agile and cost effective in dealing with the dynamics of global supply chains. Postponement centres around delaying activities in the supply chain until real information about the market is available, which reduces the complexity and uncertainty of dealing with a proliferation of products. A two-echelon divergent suppl...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Atabarut, “Value of quality information of returns in product recovery management,” M.S. - Master of Science, Middle East Technical University, 2009.