Denis Graham and Vipul K. Gupta
How do managers, in their role as decision makers, design and implement systems for management of quality? Proposes that there is no one, definitive answer to this question, given…
Abstract
How do managers, in their role as decision makers, design and implement systems for management of quality? Proposes that there is no one, definitive answer to this question, given various industrial environments and their operating constraints, diverse market conditions and numerous management philosophies. Attempts to address quality management issues in the business‐to‐business industrial service industry by presenting a case study on the quality management approach taken by Diamond Offshore Drilling, Inc. ‐ one of the largest offshore oil‐drilling companies in the world. States that the business‐to‐business industrial service markets are characterized by the sale of industrial services to business customers, who often then use these services to produce goods or services for consumers or other businesses. A wide variety of services are provided by the companies operating in this industry, such as offshore oil‐drilling and exploration, warehousing and public utilities. The case study follows the backdrop, initiation and complete implementation of Diamond Offshore’s Global Excellence in Management Systems (GEMS) programme. GEMS can be characterized as a system deeply rooted in the basics of quality management ‐ customer‐defined requirements and quality through customer satisfaction. Also discusses post‐implementation customer feedback results to illustrate the success of the programme. Based on the GEMS framework and relevant literature, proposes a generalized framework for implementing quality management in firms operating in business‐to‐business industrial service markets.
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Vipul Gupta, Padmanav Acharya and Manoj Patwardhan
The purpose of this study is to assess the lean performance of a tyre manufacturing firm in India. The key objective is to find key strategic and operational decision‐making…
Abstract
Purpose
The purpose of this study is to assess the lean performance of a tyre manufacturing firm in India. The key objective is to find key strategic and operational decision‐making dimensions for developing effective lean manufacturing environment in a tyre manufacturing organization.
Design/methodology/approach
This research is empirical in nature where the opinions of a group of experts of an Indian tyre manufacturing firm were consulted to formulate an interpretive structural model (ISM) of the critical success factors of lean manufacturing implementation in a tyre manufacturing organization. The authors have developed an Excel‐based template for quantitative assessment of lean performance indicators on the basis of feedback from the operational staff.
Findings
This research work suggests that financial capability of an organization drives the top‐management commitment for incorporating lean manufacturing practices in a tyre manufacturing organization. Organizational culture and human resource management are the important enablers for developing change management paradigm, which in turn leads to performance improvement. This study also reveals that over‐processing as well as excessive defects are the most detrimental wastes in radial tyre manufacturing, which accounts for high manufacturing cost of radial tyre manufacturing in India.
Research limitations/implications
Since this study is carried out in a single (case) organization, a relatively small sample size restricts the outcome from being considered for generic industrial application. This study none the less is useful for practicing managers and academicians for the development of lean manufacturing strategy in context with the tyre industry since it encompasses insightful views of experienced lower to upper middle level managers.
Originality/value
This paper provides some key enablers for the successful implementation of lean tools in Indian tyre manufacturing, where lean practices are still in the early stage and little literature is available in this context with tyre manufacturing. Also an attempt has been made to develop a simple Excel‐based template for lean assessment in the tyre industry. This template can be used in other industries by simply modifying the key attributes.
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Vipul Gupta, Padmanav Acharya and Manoj Patwardhan
This case seeks to illustrate the specific problem of excessive defects in radial tyres produced in a renowned tyre manufacturing company in India. This paper aims to show how…
Abstract
Purpose
This case seeks to illustrate the specific problem of excessive defects in radial tyres produced in a renowned tyre manufacturing company in India. This paper aims to show how lean Six‐Sigma methodology can be used to tackle the specific issues like defects reduction.
Design/methodology/approach
The management took this problem on top priority as it is eroding their brand value and financial performance. A Mumbai‐based lean Six‐Sigma consulting group was approached to tackle the issue. One of the authors, who is pursuing research on determinants of successful lean manufacturing implementation in Indian industries, joined this project as a part of his field study and he spent considerable time in discussing and observing the issue with people of different hierarchical levels of the company. Lean Six‐Sigma methodologies were incorporated and the problem was evaluated with root‐cause analysis. This case is formulated on the basis of the initial findings of the study in an Indian tyre manufacturing organisation keeping the actual name of the company in disguise.
Findings
On the basis root‐cause analysis of the radial tyre manufacturing process, it was found that presence of foreign particles in the manufacturing environment, under‐ageing and over‐ageing of tyre components, and inefficient bead winding process, were the main culprits of defects. It was confirmed that lean Six‐Sigma methodology can serve as a major tool to reduce defects in the tyre manufacturing process in India.
Originality/value
This paper provides some key insights to the successful adoption of lean Six‐Sigma tools in an Indian industrial environment, where lean practices are still in the very nascent stage and very little literature is available in this context.
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Describes how a group of organizations (consultants, companies and universities) in Houston, Texas, USA created an informal yet organized forum for sharing information, case…
Abstract
Describes how a group of organizations (consultants, companies and universities) in Houston, Texas, USA created an informal yet organized forum for sharing information, case studies, tools, and methodologies in the area of business process re‐engineering (BPR) to learn from one another’s experiences and to avoid pitfalls in their BPR endeavours. The forum is named “Houston Business Process Re‐engineering Share Group”. Acts as a road‐map for practitioners and academicians who want to establish similar share groups to increase interaction and improve their understanding of principles and methodologies of BPR. Within 40 months of its startup with 24 members, the Houston BPR Share Group membership increased to over 200 ‐ an indication of its utility and the benefits to the participating organizations.
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Mirza B. Murtaza, Vipul Gupta and Richard C. Carroll
E‐marketplaces are one of the relatively new trends that are affecting buyer‐supplier relationships. Although there have been several failures in the e‐business arena, whether it…
Abstract
E‐marketplaces are one of the relatively new trends that are affecting buyer‐supplier relationships. Although there have been several failures in the e‐business arena, whether it is business‐to‐business (B2B) or business‐to‐consumer (B2C) e‐commerce, there is no doubt that the Internet has changed the way that business is done in several ways. It has been shown that electronic commerce can fundamentally change the inter‐organizational processes involving buyer‐supplier relationships. It reshapes these buyer‐supplier relationships, improves a business's core processes, and helps reach new markets or segments through the electronic medium. This paper discusses the opportunities and challenges facing e‐marketplaces today, and also the concerns facing potential participants in these e‐marketplaces who are trying to weigh the risks presented by such participation and the possible benefits that can be reaped by streamlining supply chain processes. Some of the major concerns facing existing and potential buyers and suppliers that are discussed in this paper include integration issues, security issues and antitrust issues.
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Manish Tiwari, Anil Panghal, Vipul Mittal and Ravi Gupta
The purpose of this paper is to review phytochemical potential of acacia and its associated health advantages. Acacia a moderate-sized, deciduous tree and recognised as…
Abstract
Purpose
The purpose of this paper is to review phytochemical potential of acacia and its associated health advantages. Acacia a moderate-sized, deciduous tree and recognised as health-promoting species because of availability of essential bioactive components. The bioactive compounds such as tannins, flavonoids, alkaloids, fatty acids and polysaccharides (gums) present in the plant parts of acacia, namely, bark, leaves, flowers, fruits, twigs and seeds, have medicinal value and thus are used to overlay the formulations of plant-based drugs and value-added foods.
Design/methodology/approach
Major well-known bibliometric information sources such as Web of Science, Scopus, Mendeley and Google Scholar were searched with keywords such as “nutrition value of acacia”, “bioactive compounds”, “health benefits”, “processing and safety” were chosen to obtain a database of 1,428 papers. The search considered papers in the English language from the past 18 years of publication in journals (2004–2022). The article selection process consisted of the screening of titles and abstracts, based on inclusion and exclusion criteria. Articles that did not have acacia components as a study objective were taken into consideration for exclusion. A final database of 87 scientific sources was made after sorting and classifying them according to different criteria based on topic relevance, country of origin and year of publication. Articles with other random descriptors were also searched to complement the discussion of the results obtained.
Findings
The literature reflected that acacia contains all necessary phytochemicals like polyphenols, flavonoids, terpenoids, glucosinolates, alkaloids and carotenoids along with essential macro, micro-nutrients. Furthermore, processing methods such as soaking, cooking, roasting and dehusking significantly reduced the anti-nutritional factors present in acacia seeds of different species. This review also focused on the processing methods that are used to eliminate or lower down the anti-nutritional factors from the seeds. Previous findings related to acacia plant parts with respect to food development are explored and mentioned.
Originality/value
This review emphasised mainly on recent studies that had been reported on ethnomedical acacia plants therapeutically, commercially and exponentially for further studies to increase the utilisation in food processing.
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Himanshukumar R. Patel and Vipul A. Shah
The two-tank level control system is one of the real-world's second-order system (SOS) widely used as the process control in industries. It is normally operated under the…
Abstract
Purpose
The two-tank level control system is one of the real-world's second-order system (SOS) widely used as the process control in industries. It is normally operated under the Proportional integral and derivative (PID) feedback control loop. The conventional PID controller performance degrades significantly in the existence of modeling uncertainty, faults and process disturbances. To overcome these limitations, the paper suggests an interval type-2 fuzzy logic based Tilt-Integral-Derivative Controller (IT2TID) which is modified structure of PID controller.
Design/methodology/approach
In this paper, an optimization IT2TID controller design for the conical, noninteracting level control system is presented. Regarding to modern optimization context, the flower pollination algorithm (FPA), among the most coherent population-based metaheuristic optimization techniques is applied to search for the appropriate IT2FTID's and IT2FPID's parameters. The proposed FPA-based IT2FTID/IT2FPID design framework is considered as the constrained optimization problem. System responses obtained by the IT2FTID controller designed by the FPA will be differentiated with those acquired by the IT2FPID controller also designed by the FPA.
Findings
As the results, it was found that the IT2FTID can provide the very satisfactory tracking and regulating responses of the conical two-tank noninteracting level control system superior as compared to IT2FPID significantly under the actuator and system component faults. Additionally, statistical Z-test carried out for both the controllers and an effectiveness of the proposed IT2FTID controller is proven as compared to IT2FPID and existing passive fault tolerant controller in recent literature.
Originality/value
Application of new metaheuristic algorithm to optimize interval type-2 fractional order TID controller for nonlinear level control system with two type of faults. Also, proposed method will compare with other method and statistical analysis will be presented.
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Atul Varshney and Vipul Sharma
This paper aims to present the design development and measurement of two aerodynamic slotted X-bands back-to-back planer substrate-integrated rectangular waveguide (SIRWG/SIW) to…
Abstract
Purpose
This paper aims to present the design development and measurement of two aerodynamic slotted X-bands back-to-back planer substrate-integrated rectangular waveguide (SIRWG/SIW) to Microstrip (MS) line transition for satellite and RADAR applications. It facilitates the realization of nonplanar (waveguide-based) circuits into planar form for easy integration with other planar (microstrip) devices, circuits and systems. This paper describes the design of a SIW to microstrip transition. The transition is broadband covering the frequency range of 8–12 GHz. The design and interconnection of microwave components like filters, power dividers, resonators, satellite dishes, sensors, transmitters and transponders are further aided by these transitions. A common planar interconnect is designed with better reflection coefficient/return loss (RL) (S11/S22 ≤ 10 dB), transmission coefficient/insertion loss (IL) (S12/S21: 0–3.0 dB) and ultra-wideband bandwidth on low profile FR-4 substrate for X-band and Ku-band functioning to interconnect modern era MIC/MMIC circuits, components and devices.
Design/methodology/approach
Two series of metal via (6 via/row) have been used so that all surface current and electric field vectors are confined within the metallic via-wall in SIW length. Introduced aerodynamic slots in tapered portions achieve excellent impedance matching and tapered junctions with SIW are mitered for fine tuning to achieve minimum reflections and improved transmissions at X-band center frequency.
Findings
Using this method, the measured IL and RLs are found in concord with simulated results in full X-band (8.22–12.4 GHz). RLC T-equivalent and p-equivalent electrical circuits of the proposed design are presented at the end.
Practical implications
The measurement of the prototype has been carried out by an available low-cost X-band microwave bench and with a Keysight E4416A power meter in the microwave laboratory.
Originality/value
The transition is fabricated on FR-4 substrate with compact size 14 mm × 21.35 mm × 1.6 mm and hence economical with IL lie within limits 0.6–1 dB and RL is lower than −10 dB in bandwidth 7.05–17.10 GHz. Because of such outstanding fractional bandwidth (FBW: 100.5%), the transition could also be useful for Ku-band with IL close to 1.6 dB.
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Kithsiri Samarakoon and Rudra P. Pradhan
This study investigates the mispricing dynamics of NIFTY 50 Index futures, drawing upon daily data spanning from January 2008 to July 2023.
Abstract
Purpose
This study investigates the mispricing dynamics of NIFTY 50 Index futures, drawing upon daily data spanning from January 2008 to July 2023.
Design/methodology/approach
The study employs both a single regime analysis and a tri-regime model to understand the fluctuations in NIFTY 50 Index futures mispricing.
Findings
The study reveals a complex interplay between various market factors and mispricing, including forward-looking volatility (measured by the NIFVIX index), changes in open interest, underlying index return, futures volume, index volume and time to maturity. Additionally, the relationships are regime-dependent, specifically identifying the regime-dependent nature of the relationship between forward-looking volatility and mispricing, the impact of futures volume on mispricing, the effect of open interest on mispricing, the varying influence of index volume and the influence of time to maturity across the three distinct regimes.
Practical implications
These findings offer valuable insights for policymakers and investors by providing a detailed understanding of futures market efficiency and potential arbitrage opportunities. The study emphasizes the importance of understanding market dynamics, transaction costs and timing, offering guidance to enhance market efficiency and capitalize on trading opportunities in the evolving Indian derivatives market.
Originality/value
The Vector Autoregression (VAR) and Threshold Vector Autoregression Regression (TVAR) models are deployed to disentangle the interrelationships between NIFTY 50 Index futures mispricing and related endogenous determinants.
Research highlights
This study investigates the Nifty 50 Index futures mispricing across three distinct market regimes.
We highlight how factors like volatility, futures volume, and open interest vary in their impact.
The study employs vector auto-regressive and threshold vector auto-regressive models to explore the complex relationships influencing mispricing.
We provide valuable insights for investors and policymakers on improving market efficiency and identifying potential arbitrage opportunities.
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Kiran Patil, Vipul Garg, Janeth Gabaldon, Himali Patil, Suman Niranjan and Timothy Hawkins
This paper aims to examine how interfirm transactional and relational assets drive firm performance (FP) in digitally integrated supply chains.
Abstract
Purpose
This paper aims to examine how interfirm transactional and relational assets drive firm performance (FP) in digitally integrated supply chains.
Design/methodology/approach
The authors combine the Transaction Cost Economics (TCE) and Relational Exchange Theory (RET) frameworks to hypothesize that FP will be a function of Asset Specificity (AS), Digital Technology Usage (DTU) and Collaborative Information Sharing (CIS). In addition, the authors hypothesize that Supply Chain Integration (SCI) will partially mediate the effect of DTU and fully mediate the impact of AS and CIS on FP. A cross-sectional survey of supply chain managers is used to test the hypotheses.
Findings
Findings indicate that specific investments in digitally integrated supply chains would increase FP. In addition, SCI fully mediates the relationships between AS and FP and CIS and FP, while SCI partially mediates the influence of DTU on FP.
Practical implications
Managers could strategically engage in the technologies that effectively fit within the firm’s supply chain strategies and seek to develop a pragmatic expertise that enables the effective use of technology in a comprehensive setting.
Originality/value
The study enriches the extant literature by incorporating TCE and RET as contradictory viewpoints on AS and investigating how transactional and relational assets affect FP in digitally integrated supply chains.