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535
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Introduction
Dr. Gupta’s research interests include Production Systems and OR. He is interested in Environmentally Conscious Manufacturing, Reverse and Closed-Loop Supply Chains, Disassembly Modeling and Remanufacturing. He has authored 13 books and over 700 technical papers published in books, journals and proceedings. His publications have received over 20,800 citations (with h-index of 73). He has traveled to all seven continents and delivered dozens of plenary/keynote speeches all over the globe.
Current institution
Publications
Publications (535)
Disassembly has been emerging as an important potential response to recent environmental and recycling regulations as well as resource conservation needs. One can identify two distinct approaches to tackle the disassembly problem, viz., design for disassembly (DFD) and planning for disassembly (PFD). This paper focuses on the PFD approach. The evol...
Background: Since global warming is a crucial worldwide issue, carbon tax has been introduced in the global supply chain as an environmental regulation for the reduction of greenhouse gas (GHG) emissions. Costs, GHG emissions, and carbon tax prices differ in each country due to economic conditions, energy mixes, and government policies. Additionall...
Rapidly updating technology and accelerating development in manufacturing greatly improve quality of life for all individuals. For example, electronic products are updated frequently. Obvious consequences of these trends are shortened lifecycle and increase in end-of-life (EOL) products. This necessitates governments to enactlaws and regulations ad...
Environmental protection has become a global problem since the deteriorating environment greatly threatens human existence. Due to rapid developments in technology and manufacturing methods, the number of waste products is increasing faster than ever. Product recovery is one of the most effective strategies to deal with the waste problem. Compared...
Economic development and societal advancement have greatly led to the development of manufacturing and product diversification. While all aspects of development are beneficial to the society, they also magnify the waste problem which has been getting serious attention during the last three decades. Vast amounts of end-of-life (EOL) products created...
Increased environmental awareness by individuals and governments have brought environmental consciousness into focus. Stricter regulations discourage traditional landfilling methods to deal with end-of-life (EOL) products. In recent years, product recovery is gaining popularity as it is one of the most ecofriendly methods in dealing with EOL produc...
Global supply chains have developed rapidly due to the desire for increased economic improvement and manufacturing productivity. However, increased prosperity and the need for latest technology have shortened the lifespan of products, especially electronic products. An increasing number of end-of-life (EOL) products is becoming one of the main prob...
The e-waste from high-technology products is at the forefront of many studies that focus on remanufacturing and selling end-of-use electronics. For the market of high-technology products, new commodities belonging to the early generation depreciate faster due to the rapid technology development and the challenge faced from remanufactured products b...
The timely recovery and disassembly of waste electrical and electronic equipment (WEEE) can not only obtain a higher economic benefit but also can reduce the impact of hazardous substances on the environment. The parallel disassembly line can disassemble different kinds of WEEE synchronously and improve disassembly efficiency. Therefore, a parallel...
Warranty frauds in the new product industry have been well covered in recent literature, however, fraud issues in the remanufacturing industry have only recently been explored in a meaningful way. There are many ways to categorize these fraud problems. This paper attempts to do so by examining their point of origin. The paper highlights the various...
The ever-increasing concerns of the growth in the volume of waste tires and new strict government legislations to reduce the environmental impact of the end-of-life (EOL) tires have increased interest among companies to design a sustainable and efficient closed-loop supply-chain (CLSC) network. In the real world, the CLSC network design is subject...
The extant literature has examined warranty frauds in the new product industry quite extensively. However, fraud issues in the remanufacturing industry have only recently been explored in a meaningful way. Previous scenarios considered the primary parties in the warranty service chain (WSC) as possible sources of fraud. However, a number of unique...
Manufacturing and supply chain operations grow into a highly complex structure due to the rapidly changing customer needs. Manufacturers are under pressure to realign their strategic and operational activities with the emergence of groundbreaking technologies. Among these, the digital twin technology powered by IoT-enabled blockchain platform is si...
Environment waste is one of the most crucial problems to all of the countries and individuals. Increasing number of manufacturing factories and shorten lifespan of daily products together make waste problem worse. One way to deal with waste problem is remanufacturing. Remanufacturing obtains rapid development in the last 20 years. Remanufacturing h...
Rapid development of technology and highly demanding individuals promote products' diversification. Increasing number and rapid updates result in products becoming end-of-life (EOL) products early in their life cycles. Landfilling these products has a negative impact on the environment. More ecofriendly ways should be considered to protect the envi...
Economic development and manufacturing productivity rely on efficient utilization of resources. Renewal of technology and rapid manufacturing directly causes products to become end-of-life (EOL) products early in their life cycles. A higher stage of environmental protection consciousness of individuals and governments together encourage green manuf...
Rapid development of technology and highly demanding customers promote products' diversification leading to shorter lifecycles and larger number of end-of-life (EOL) products. This necessitates societies and governments to enact environmental consciousness and regulations on product manufacturing and consumption. As opposed to landfilling EOL produ...
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 (EO...
Growing rates of innovation and consumer demand resulted in rapid accumulation of waste of electrical and electronic equipment or electronic waste (e-waste). In order to build and sustain green cities, efficient management of e-waste rises as a viable response to this accumulation. Accurate e-waste predictions that municipalities can utilize to bui...
In recent years, the environment surrounding companies has become more challenging. It has become more difficult for many companies in the manufacturing industry to possess all the skills they need, such as production, warehousing, and retailing, so they need to outsource certain skills. In supply chains with several companies, each has an optimal...
Manufacturing and supply chain operations are on the cusp of an era with the emergence of groundbreaking technologies. Among these, the digital twin technology is characterized as a paradigm shift in managing production and supply networks since it facilitates a high degree of surveillance and a communication platform between humans, machines, and...
Governmental regulations for expansion of e-waste and customers’ awareness of green goods drive remanufacturing practices in high-technology electronic products. Selling remanufactured high-technology products is a challenge because of the shorter residual life of usage and potential cannibalisation of new items. Smartphones and tablets, as hi-tech...
Growing environmental awareness and widening extended producer responsibility have heightened the need for economically, environmentally, and socially sustainable business strategies levered by digital technologies. As an extension, various take-back policies focusing on product waste and recovery are put in place by the high-tech manufacturing ind...
Recently, the topic of designing a closed loop supply chain network has attracted researchers’ attention due to the enormous financial and environmental benefits obtained from its practices. This paper addresses a new model of designing a closed loop supply chain network, which considers a downward product substitution policy under four carbon emis...
Materials and parts selection in product design phase will affect procurement cost, assembly cost and recycling costs in manufacturing phase. Similar to such costs, recyclable weight depends on material types due to different material manufacturing processes. As material shortages have increased, environmentally friendly and economical material sel...
Call for papers for Resources, Conservation & Recycling on Remanufacturing: Opportunities and Challenges for a Sustainable Consumption.
Rapid and revolutionary changes in technology and rising demand for consumer electronics have led to staggering rates of accumulation of electrical and electronic equipment waste, viz., WEEE or e-waste. Consequently, e-waste has become one of the fastest growing municipal solid waste streams in the United States making its efficient management cruc...
Warranty services are often conducted in-house but it is not uncommon for manufacturers to outsource services to third party warranty providers. Since these parties operate outside of the immediate supervision of the remanufacturer, there exists a greater opportunity for fraudulent behaviour. Fraud is a sometimes overlooked issue in both manufactur...
Rapid changes in technology and increasing consumer demand resulted in fast accumulation of waste of electrical and electronic equipment, namely WEEE or e-waste. Therefore, e-waste has emerged as one of the fastest growing municipal solid waste streams in the United States. Efficient management of e-waste becomes crucial to create and sustain green...
Unlike consumer durable goods, high technology products have shorter life cycles. Many companies launch new items at a fast rate of innovation. As a result, the latest products often compete in the same market with earlier-generation products. In addition to brand-new products, used products returned by early-adopting customers still have significa...
The concept of efficiency has always been and will continue to be important for competitive business environments where limited resources exist. Owing to the growing complexity of organizations and economy in general, this trend is expected to continue to remain a high priority for organizations. Continuous performance evaluations that utilize both...
Disassembly sequence planning (DSP) is a nondeterministic polynomial time (NP) complete problem, making the utilization of metaheuristic approaches a viable alternative. DSP aims at creating efficient algorithms for deriving the optimum or near-optimum disassembly sequence for a given product or a product family. The problem-specific nature of such...
Today, as a result of growing globalization and digitalization, manufacturing industries are facing several challenges. Organizations are now under pressure to strategically realign their businesses to adopt to changes in market dynamics to ensure long-term competitiveness. Industry 4.0 rises as a viable solution due to its ability to overcome thes...
New generations of high-technology products are frequently launched before the previous model is sold out. Customers have an incentive to end the use of their old product and purchase a new one with the latest technological innovations. The unsold old models become less attractive, while the supply of remanufactured products from end-of-use product...
This chapter presents a methodology to evaluate the benefit of using sensors in closed-loop supply chains. Sensors can be embedded into products to collect helpful information during their use and end-of-life (EOL) phases. This information can subsequently be employed to estimate the remaining lives of components and products and to ensure that pro...
With the rapid growth of interest in remanufactured products, offering warranty for remanufactured products and components is becoming necessary for remanufacturer in order to meet customers' requirements mechanism. Furthermore, maintenance policies are of great importance in order to reduce the warranty cost of the remanufacturer. In this paper, a...
Manufacturing has been required to promote material circulation by reusing components and recycling materials since the depletion of natural resources has become more serious. Thus, values of components and materials in end-of-life (EOL) products need to be recovered for material circulation. Disassembly-to-order (DTO) system, which determines the...
The exponential increase in the development of technology coupled with the customers’ immense desire to possess the newest technological products makes for truncated product lifespans, which instigates a substantial upsurge in their rate of disposal. Attempts have been made to establish specialized product recovery facilities with the intention of...
Internet of Things (IoT) can play a crucial role in End-of-Life (EOL) product recovery. It can help in determining conditions of returned EOL products with the help of sensors and RFID tags, which then can be used to decide a feasible recovery process for the EOL product amongst disassembly, remanufacturing, recycling or disposal. Product design is...
The Internet of Things plays a critical role as a facilitator of concrete planning for both warranty and maintenance procedures for remanufactured products by significantly reducing or nearly eliminating ambiguity about the existence, conditions, and types as well as the remaining lives of individual constituents of an End-of-Use product. Since rem...
The costs associated with inspecting wind turbines are high due to their size and complexity. One potential method by which such costs can be reduced, is through the development of robust systems that can monitor the conditions of wind turbines remotely. This study proposes embedding sensors into wind turbines to monitor the conditions of the wind...
Reverse supply chain comprises sequences of activities required to recover a post-consumed product from a customer to manufacturer. Remanufacturing of used products is one of the most desirable opportunities among the product recovery choices. We consider a hybrid system for a single remanufacturable product and model the hybrid system as an open q...
End-of-life (EOL) disassembly focuses on regaining the value embodied in products which are considered to have completed their useful lives due to a variety of reasons such as lack of technical functionality and/or lack of demand. Disassembly is known to possess unique characteristics due to possible changes in the EOL product structure and hence,...
This chapter studies the integration of quantitative and qualitative attributes of a particular issue in the strategic “designing” level of the reverse supply chain (RSC) process in a multicriteria decision-making environment. The study employs an analytical network process (ANP) to determine the performance indices of the collection centers derive...
In recent years, activities undertaken to reduce environmental impacts – such as recycling and reusing – have been increasing in popularity. For manufacturing companies, designing and using a closed-loop supply chain can help meet social responsibility objectives and enhance competitiveness. A closed-loop supply chain requires the accurate predicti...
To address issues such as global warming and material starvation, the manufacturing should be required to pay much attention to these environmental issues. Recycling is one of the effective methods to overcome both global warming and material starvation as it reduces CO2 emissions, one of the causes of global warming, at material production stage b...
One of the more undesirable sources of waste in a manufacturing process is the issue of fraud. The activities that are required to root out sources of fraud are both time consuming and expensive to the manufacturer. Fraud has been previously reviewed extensively in the new product industry, whereas fraud in remanufactured products has not been well...
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 le...
In today’s global environment, technology is constantly evolving. Being able to stay up-to-date with the very latest technological advances can be extremely hard to accomplish. As a result of these changes and developments in technology, which often come unexpectedly, consumers are frequently tempted to update their devices to the very latest model...
The disassembly line balancing (DLB) problem assigns the set of tasks to each workstation for each product to be disassembled and aims at attaining several objectives, such as minimising the number of workstations, ensuring similar idle time at each workstation and removing hazardous parts/highly demanded components at the earliest moments possible...
Sensors are commonly employed to monitor products during their life cycles and to remotely and continuously track their usage patterns. Installing sensors into products can help generate useful data related to the conditions of products and their components, and this information can subsequently be used to inform EOL decision-making. As such, embed...
