scholarly journals Evaluation of Design Alternatives of Sensor Embedded End-of-life Products in Multiple Periods

Procedia CIRP ◽  
2017 ◽  
Vol 61 ◽  
pp. 98-103 ◽  
Author(s):  
Aditi D. Joshi ◽  
Surendra M. Gupta ◽  
Aya Ishigaki
Author(s):  
Aditi D. Joshi ◽  
Surendra M. Gupta

In this chapter, an advanced remanufacturing-to-order and disassembly-to-order (ARTODTO) system is considered to evaluate various design alternatives of end-of-life (EOL) products to meet products, components, and materials demands. There are uncertainties about the quantity, quality, and variety of returned EOL products, and these uncertainties lead to fractional disassembly yields. Since the main input to the system is EOL products, their quantities to be acquired is important, and should be determined such that they satisfy all the demands. The designs are evaluated based on four criteria: total profit, procurement cost, purchase cost, and disposal cost using goal programming (GP). A numerical example using EOL dryers is considered to illustrate the implementation of the proposed model.


2015 ◽  
Vol 9 (4) ◽  
pp. 119-126
Author(s):  
Aditi D. JOSHI ◽  
Kenichi NAKASHIMA

This paper proposes a model of an advanced remanufacturing to order and disassembly to order (ARTODTO) system which evaluates various design alternatives of products to satisfy the demands of retrieved products, components and materials by disassembling these products at the end of their lives. The quality, quantity and variety of end-of-life (EOL) products are uncertain which lead to fractional disassembly yields. Goal programming is used to determine the quantities of EOL products to be acquired in order to meet all the demands of retrieved products, components and materials. A case-example of EOL dryers is presented to demonstrate the steps and implementation of the proposed model.


2010 ◽  
Vol 132 (7) ◽  
Author(s):  
Minjung Kwak ◽  
Harrison M. Kim

Product recovery has become a field of rapidly growing interest for product manufacturers as a promising solution for product stewardship as well as for economic viability. Because product recovery is highly dependent on the way a product is designed, it should be considered in the design stage so that the product is designed to have high recovery potential. To make a product easy to recover, manufacturers first need to understand the links between product design and recovery profit and be able to evaluate which design is better than others and why. This study proposes a framework for analyzing how design differences affect product recovery and what architectural characteristics are desirable from the end-of-life perspective. For better design evaluation, an optimization-based model is developed, which considers product design and recovery network design simultaneously. For illustration, a comparative study with cell phone examples is presented. Three cell phone handset designs that share the same design concept but have different architectural characteristics are created, and the recovery potential of each design variant is evaluated under three different recovery scenarios. The results show that the framework can highlight preferred design alternatives and their design implications for the economic viability of end-of-life recovery.


2017 ◽  
pp. 697-707
Author(s):  
Bo Carlsson

A total cost accounting approach was used to analyse the suitability of copper and aluminium as winding material for transformers, using available data from the Ecoinvent database. It could be concluded that the use of recycled metal is a necessary requisite for sustainability. Using cost data for energy and materials and reasonable assumptions about costs for labour and interest for the metal supplier and the product manufacturer, the copper alternative turns out to be the better choice, especially when the expected increase in the prices of energy,copper, and aluminium during life cycle is taken into account. When considering environmental cost, useful indicators are those that can be expressed in cost terms. With the Ecoindicator 99 indicator as the basis for estimating environmental cost, the aluminium alternative is better than the copper alternative. However, the contribution of the environmental cost to the total cost has minor importance when compared with the effect you get from the negative cost contribution from the end-of-life phase. Therefore, the copper alternative is the better choice in terms of least total cost in the application considered. From the study it could also be concluded that the total cost accounting approach would be a valuable design tool, when comparing two design alternatives of a product functional unit to decide which of the two is the more favourable from a sustainability point of view.


2019 ◽  
Vol 28 (3) ◽  
pp. 1356-1362
Author(s):  
Laurence Tan Lean Chin ◽  
Yu Jun Lim ◽  
Wan Ling Choo

Purpose Palliative care is a philosophy of care that encompasses holistic, patient-centric care involving patients and their family members and loved ones. Palliative care patients often have complex needs. A common challenge in managing patients near their end of life is the complexity of navigating clinical decisions and finding achievable and realistic goals of care that are in line with the values and wishes of patients. This often results in differing opinions and conflicts within the multidisciplinary team. Conclusion This article describes a tool derived from the biopsychosocial model and the 4-quadrant ethical model. The authors describe the use of this tool in managing a patient who wishes to have fried chicken despite aspiration risk and how this tool was used to encourage discussions and reduce conflict and distress within the multidisciplinary team.


2005 ◽  
Vol 14 (3) ◽  
pp. 15-19 ◽  
Author(s):  
Melanie Fried-Oken ◽  
Lisa Bardach

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