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Full-Text Articles in Engineering
Identification Of Potential Recovery Facilities For Strategic Planning Of An Efficient Reverse Distribution Network, Surendra Gupta, Kishore Pochampally, Sagar Kamarthi
Identification Of Potential Recovery Facilities For Strategic Planning Of An Efficient Reverse Distribution Network, Surendra Gupta, Kishore Pochampally, Sagar Kamarthi
Sagar Kamarthi
Strategic planning of a distribution network is one of the most challenging aspects of reverse logistics. To effectively satisfy drivers such as profitability, environmental regulations and asset recovery, only the recovery facilities that have the potential to efficiently reprocess used-products must be considered in the reverse distribution network design. Due to uncertainties in supply, quality and reprocessing times of usedproducts, traditional forward logistics approaches to identify potential manufacturing facilities are not appropriate for direct adoption in reverse logistics. This paper proposes a mathematical programming approach, taking the above uncertainties into account, to effectively select potential facilities from a set of …
A Multi-Kanban Model For Disassembly, Surendra Gupta, Gun Udomsawat, Sagar Kamarthi
A Multi-Kanban Model For Disassembly, Surendra Gupta, Gun Udomsawat, Sagar Kamarthi
Sagar Kamarthi
In this paper we demonstrate how kanbans can be used in a disassembly line setting. Disassembly line is quite different from assembly line in terms of material movement, demand arrival and inventory level fluctuation. We discuss these differences and introduce the concept of a multi-kanban mechanism to cope with them. With the help of a simulation model (developed using the ARENA software), we show that the modified kanban mechanism is in fact an effective tool for a disassembly line setting. An example is presented to illustrate the concept.
A Multi-Kanban Model For Disassembly, Surendra Gupta, Gun Udomsawat, Sagar Kamarthi
A Multi-Kanban Model For Disassembly, Surendra Gupta, Gun Udomsawat, Sagar Kamarthi
Surendra M. Gupta
In this paper we demonstrate how kanbans can be used in a disassembly line setting. Disassembly line is quite different from assembly line in terms of material movement, demand arrival and inventory level fluctuation. We discuss these differences and introduce the concept of a multi-kanban mechanism to cope with them. With the help of a simulation model (developed using the ARENA software), we show that the modified kanban mechanism is in fact an effective tool for a disassembly line setting. An example is presented to illustrate the concept.
Disassembly Sequence Planning For Complete Disassembly In Product Recovery, Askiner Gungor, Surendra Gupta
Disassembly Sequence Planning For Complete Disassembly In Product Recovery, Askiner Gungor, Surendra Gupta
Surendra M. Gupta
Disassembly is a key element for retrieving the desired subassemblies and/or parts from a product. However, determining an efficient disassembly sequence plan (DSP) is an NP-complete problem. In this paper, we propose a methodology to generate a near optimum DSP for a product. The methodology is illustrated using an example.
Calculating Disassembly Yields In A Multi-Criteria Decision Making Environment For A Disassembly To Order System, Surendra Gupta, Prasit Imtanavanich
Calculating Disassembly Yields In A Multi-Criteria Decision Making Environment For A Disassembly To Order System, Surendra Gupta, Prasit Imtanavanich
Surendra M. Gupta
In this paper, we consider the disassembly-to-order (DTO) problem, where a variety of returned products are disassembled to fulfill the demand for specified numbers of components and materials. The objective is to determine the optimal numbers of returned products to disassemble so as to maximize profit and minimize costs. We model the DTO problem using a multi-criteria decision making approach. Since the condition of returned products are unknown, the yields from disassembly are considered to be stochastic. To solve the stochastic problem, we use one of two heuristic approaches (viz., one-to-one approach or one-to-many approach) that convert the problem into …
A Modified Kanban System For Disassembly, Surendra Gupta, Elif Kizilkaya
A Modified Kanban System For Disassembly, Surendra Gupta, Elif Kizilkaya
Surendra M. Gupta
We present a new Kanban system specifically developed for material control and scheduling in a disassembly environment. We briefly highlight the differences between the new (modified) and the traditional Kanban system. We assert that in the disassembly environment, the Kanban system is superior to the push system currently practiced in industry. To that end, we consider a case example and test its performance by experimenting with several different scenarios. In all instances, the Kanban system outperforms the push system.
Analysis Of A Just-In-Time Production System With Supplier Kanbans, Surendra Gupta, Kenichi Nakashima
Analysis Of A Just-In-Time Production System With Supplier Kanbans, Surendra Gupta, Kenichi Nakashima
Surendra M. Gupta
In this paper, we introduce a generalized stochastic Petri net (GSPN) to model a single-process, single-product, Just- In-Time (JIT) manufacturing facility with a supplier kanban system for multiple vendors. Its properties are investigated and the effects of the vendors' activities on the system are discussed using ANOVA.
Multi-Kanban Mechanism For Appliance Disassembly, Surendra Gupta, Gun Udomsawat
Multi-Kanban Mechanism For Appliance Disassembly, Surendra Gupta, Gun Udomsawat
Surendra M. Gupta
The use of household appliances continues to rise every year. A significant number of End-Of-Life (EOL) appliances are generated because of the introduction of newer models that are more attractive, efficient and affordable. Others are, of course, generated when they become non-functional. Many regulations encourage recycling of EOL appliances to reduce the amount of waste sent to landfills. In addition, EOL appliances offer the appliance manufacturing and remanufacturing industries a source of less expensive raw materials and components. For this reason product recovery has become a subject of interest during the past decade. In this paper, we study the disassembly …
Economics Of Pc Recycling, Jacqueline Isaacs, Surendra Gupta, Boon Jane
Economics Of Pc Recycling, Jacqueline Isaacs, Surendra Gupta, Boon Jane
Surendra M. Gupta
As the use of personal computers (PCs) increases, their short life cycle and the fact that they contain many hazardous materials means that their retirement and disposal represents a significant environmental concern. Many communities are mandating the recycling of these PCs, to recover parts and materials, and to minimize the amount of waste landfilled or incinerated. An industry to recycle these PCs is evolving to take advantage of this stream of materials. At present, PC recycling is not profitable. This paper investigates the factors that most influence the net cost to recycle PCs so that PC manufacturers, recyclers and legislators …
Determination Of Base Kanban Level For Multi-Kanban Mechanism In A Disassembly Line, Surendra Gupta, Gun Udomsawat
Determination Of Base Kanban Level For Multi-Kanban Mechanism In A Disassembly Line, Surendra Gupta, Gun Udomsawat
Surendra M. Gupta
In this paper, we propose an application of a pull type production control mechanism for a disassembly line setting. We discuss complications and justify the use of pull type mechanism in a disassembly line. We introduce a multikanban mechanism for a multi-product disassembly line where demand for components can arrive at any level. We define the kanban routing rules to minimize the inventory of a system while maintaining a customer service level comparable to a push system. We suggest a method of determining the proper number of base kanbans and demonstrate its effectiveness by using a simulation model and implementing …
A Single Stage Kanban Control System With Static Routing, Surendra Gupta, Aybek Korugan
A Single Stage Kanban Control System With Static Routing, Surendra Gupta, Aybek Korugan
Surendra M. Gupta
We consider a system with two discrete production lines where the output of each one can fulfill the demand for the same type of product. An example to this case is the hybrid-manufacturing environment, where a company manufactures new products and remanufactures returned products to meet the demand. The interarrival times for demand occurrences and service completions are exponentially distributed i.i.d. variables. Here, a single stage pull production control with two types of kanbans is utilized to model the system where a kanban type is dedicated for either manufacturing or remanufacturing process.