BITS Faculty Publications
Permanent URI for this communityhttp://localhost:4000/handle/123456789/1867
Browse
13 results
Search Results
Item An AHP model for quantification of benefits of World-class Maintenance Systems(Inder Science, 2007-01) Mishra, Rajesh PIn recent times, organisations are failing in their attempt to adapt and implement Total Productive Maintenance (TPM). Researchers are attributing these failures to the shortcomings of TPM, which resulted in the development of World-class Maintenance Systems (WMS). Different frameworks have been proposed to define and operate world-class maintenance in the literature. A comparative analysis of frameworks in our earlier study revealed various best practices based on which a new framework for WMS has been proposed. Contemporary organisations willing to adapt WMS find it difficult to initiate such a change, as it requires proper justification to convince top management. Further, to initiate the adaptation of WMS as a policy decision, it is necessary to quantify the benefits of WMS. Hence in this paper, an attempt has been made to demonstrate the application of Analytic Hierarchy Process (AHP) for the quantification of benefits of WMS. This model showed that implementing WMS would result in overall improvement in the performance of an organisation.Item Packaging Plastic Waste Management for a Circular Economy and Identifying a better Waste Collection System using Analytical Hierarchy Process (AHP)(2021) Mishra, Rajesh POne of the biggest challenges for solid waste management systems is the ever-growing use and disposal of plastic materials which have severe repercussions on the environment and ocean. Linear economy (take, make, throw) recycles as little as 2 % of plastics globally, wasting the humongous amount of resources. This is high time for the implementation of the circular economy, especially among plastics. A circular economy would both maximize the merits of plastics and minimize their ill effects, through such actions as producing them from plants rather than fossil fuels; redesigning products to cut waste and make them last; boosting recycling and reuse, and utilizing plastic wastes as a resource; to name a few. Categorizing the post-industrial plastic waste can lead to differentiating recyclables, reusable from dead-end plastics. This will help us to reduce what we don’t need and reuse what we need. In this study, we are focusing on the plastic waste generated by packaging industry because they contribute the highest (almost 40%) of total plastic waste generated. A model for recycling the waste generated from packaging industry has been proposed which provides recycling of the waste in multiple levels i.e. we can extract the same product from the waste by high grade recycling of can use them in secondary operations like as charcoal, construction material. After that an AHP analysis has been prepared for identifying best plastic waste collection methods because for successful operation of recycling to happen, collection and proper segregation is a very important prerequisite. Results showed that Deposit and Refund method collection is best suited for waste collection method as it is supporting the concept of circular economy. At the end, a case study of successful implementation of Circular Economy is presented.Item Justification of world‐class maintenance systems using analytic hierarchy constant sum method(Emerald, 2009-03) Mishra, Rajesh PIn recent times, many organizations implementing total productive maintenance (TPM) have been failing in their attempts. Researchers attribute these failures to the shortcomings of TPM and of the implementing organizations. This paper aims to conduct a detailed study in order to understand these shortcomings and seeks to propose various solutions in the form of “best practices”, which leads to the development of world‐class maintenance systems (WMS). However, development of such alterative maintenance systems raises the following question: if an organization is planning to implement and improve their existing maintenance system then how can the manager make a decision between choosing alternative systems such as traditional maintenance systems, TPM and WMS? In the case of TPM or WMS, top management should be involved from the beginning to implement and follow up, as these decisions are complex and involve huge investment in the long term. Before starting implementation, top management should be convinced of the necessary justification, which requires analysis of various qualitative and quantitative factors apart from analyzing various tangible and intangible benefits. In such a situation, the conventional, financial justification techniques alone cannot be usedItem MCDM and GIS based modelling technique for assessment of solar and wind farm locations in India(Elsevier, 2021-05) Digalwar, Abhijeet K.In the recent past, various factors have led to an increase in the use of renewable energy sources, among which, the depleting fossil fuel reserves, increasing fuel prices, and rising environmental concerns are the most prominent. With this increasing reliance on renewable energy sources, a proper assessment of the suitable sites becomes necessary for the optimum utilization of these resources. The present study investigates the spatial suitability of the solar and wind farms locations in India based on the technical, economic, and socio-environmental perspectives. The analysis is performed with the coupled use of the Geographical Information System (GIS) and Multi-Criteria Decision Making (MCDM) approaches. Analysis of present research work shows that 4.13% of the study area (133,874 km2) is highly suitable for the deployment of solar plants while 0.91% of the total area (29,457 km2) is highly suitable for the wind farms. The study further concludes that the Rajasthan state in India has the highest suitable land for the installation of solar plants (20,881 km2) as well as wind farms (6323 km2). The proposed model can be used for the development of policies related to renewable energy resources and the assessment of suitability of already sanctioned projects.Item FUGEN: a tool for the design of layouts for cellular manufacturing systems(Inder Science, 2009-05) Sangwan, Kuldip SinghDesign of layouts for Cellular Manufacturing Systems (CMSs) has not received attention by researchers as much as cell formation in cellular manufacturing. In this paper a mathematical model, formulated as a multicriteria Quadratic Assignment Problem (QAP) is proposed for the design of layouts for CMSs with the objective of minimising the material handling cost (quantitative) and maximising the closeness rating (qualitative). A Genetic Algorithm (GA)-based tool called FUGEN, which makes use of crossover, mutation (inversion) and direct entry (elitism) with embedded fuzzy logic and Analytic Hierarchy Process (AHP) models, is developed for the design of layouts for CMSs. An attempt is made to make the model practical by considering the production volume, transfer batch size and operational sequence of parts. The proposed tool is validated using an example from the literature.Item Multi-attribute decision models for justification of cellular manufacturing systems(Inder Science, 2004-11) Sangwan, Kuldip SinghThere is a general challenge offered to the field of engineering economics by the introduction of advanced manufacturing systems. Typically, the traditional approaches do not account for the significant intangible benefits offered by cellular manufacturing systems. In this paper, an attempt has been made to overcome the above-mentioned deficiencies by presenting two multi-attribute decision models – analytical hierarchy process and performance value analysis – for the justification of CMS. The usefulness of the proposed models is demonstrated through a case situation.Item Decision framework for capacity decision in a supply chain(Inder Science, 2006-12) Routroy, SrikantaCapacity decision in the supply chain is a complex, multi-attribute decision problem that must be accomplished within a constrained resource environment. An Analytic Hierarchy Process (AHP) allows decision-makers to find the priority values of the potential facilities' location in the supply chain by considering the relevant attributes. These priority values have to be maximised, whereas the cost of facilities' locations, which depends upon the number of such locations and their capacity and the cost associated owing to transportation of raw materials between suppliers and facilities' locations and of finished products between markets and facilities locations, have to be minimised while making capacity decision in the supply chain. For this, a decision framework is developed which integrates the AHP with a 0–1 integer-programming model. A simulated annealing model is used for solving the capacity decision problem in the supply chain.Item An approach for measuring a manufacturer’s preferred supplier status(Emerald, 2016-02) Routroy, SrikantaThe purpose of this paper is to assist a manufacturer with a process to measure the level of preferred supplier status (PSS) of its key suppliers along the timelineItem Development of supply chain risk mitigation strategy: a case study(Inder Science, 2014) Routroy, Srikanta; Pradhan, Sudeep KumarThe supply chain managers are making efforts to identify, assess, manage and mitigate the supply chain risks successfully to survive in the long run and to attain competitive advantages. The failure to manage these risks effectively can have a significant negative impact on supply chain performance. Therefore, the supply chain risks should be identified, quantified and analysed and it will form the basis for developing the supply chain mitigation strategies. Therefore, a complete and structured methodology is proposed for analysing supply chain risks and developing the supply chain risk mitigation strategies in a manufacturing supply chain environment. The application of proposed methodology has been demonstrated with a manufacturing case environment. It will be quite useful in the environment where quantitative information related to supply chain risks is not available.Item Selection of Third Party Logistics Provider in supply chain(Inder Science, 2009) Routroy, SrikantaFor most of the manufacturing firms, logistics is not considered to be a core competency and it is often performed by Third Party Logistics Provider (TPLP). The present work describes an efficient decision framework for TPLP evaluation and selection in supply chain. The objective of this paper is to explain how an Analytic Hierarchy Process (AHP) and Performance Value Analysis (PVA) algorithm can be used to capture and analyse Significant Categories (SCs) and Performance Indicators (PIs) for ranking the TPLPs effectively. The application of decision framework for TPLP evaluation and selection has been demonstrated with a case situation.