Showing papers by "Abid Haleem published in 2019"

Additive Manufacturing Applications in Industry 4.0: A Review

Abstract: Additive manufacturing (AM) is a set of technologies and are vital to fulfilling different requirements of Industry 4.0. So, there is a need to study different additive manufacturing applications t...

Current status and applications of additive manufacturing in dentistry: A literature-based review.

Abstract: Objective To study the current status and applications of additive manufacturing (AM) in dentistry along with various technologies, benefits and future scope. Methods A significant number of relevant research papers on the additive manufacturing application in dentistry are identified through Scopus and studied using bibliometric analysis that shows an increasing trend of research in this field. This paper briefly describes various types of AM technologies with their accuracy, pros and cons along with different dental materials. Paper also discusses various benefits of AM in dentistry and steps used to create 3D printed dental model using this technology. Further, ten major AM applications in dentistry are identified along with primary references and objectives. Results Additive manufacturing is an innovative technique moving towards the customised production of dental implants and other dental tools using computer-aided design (CAD) data. This technology is used to manufacture elaborate dental crowns, bridges, orthodontic braces and can also various other models, devices and instruments with lesser time and cost. With the help of this disruptive innovation, dental implants are fabricated accurately as per patient data captured by the dental 3D scanner. The application of this technology is also being explored for the precise manufacturing of removal prosthetics, aligners, surgical templates for implants and produce models that for the planning of treatment and preoperative positioning of the jaws.

Current status and challenges of Additive manufacturing in orthopaedics: An overview.

Abstract: Additive manufacturing is a rapidly emerging technology which is being successfully implemented in the various field of medicine as well as in orthopaedics, where it has applications in reducing cartilage defects and treatments of bones. The technology helps through systematic collection of information about the shape of the "defects" and precise fabrication of complex 3D constructs such as cartilage, heart valve, trachea, myocardial bone tissue and blood vessels. In this paper, a large number of the relevant research papers on the additive manufacturing and its application in medical specifically orthopaedics are identified through Scopus had been studied using Bibliometric analysis and application analysis is undertaken. The bibliometric analysis shows that there is an increasing trend in the research reports on additive manufacturing applications in the field of orthopaedics. Discussions are on using technological advancement like scanning techniques and various challenges of the orthopaedic being met by additive manufacturing technology. For patient-specific orthopaedic applications, these techniques incorporate clinical practice and use for effective planning. 3D printed models printed by this technology are accepted for orthopaedic surgery such as revision of lumbar discectomy, pelvic surgery and large scapular osteochondroma. The applications of additive manufacturing in orthopaedics will experience a rapid translation in future. An orthopaedic surgeon can convert need/idea into a reality by using computer-aided design (CAD) software, analysis software to facilitate the manufacturing. Thus, AM provides a comprehensive opportunity to manufacture orthopaedic implantable medical devices.

Prioritising the risks in Halal food supply chain: an MCDM approach

Abstract: Purpose Risk in the Halal food supply chain is considered as the failure to deliver the product which complies with Halal standards. The purpose of this paper is to identify the risk elements associated with Halal food supply chains and prioritise them appropriately towards better management. Design/methodology/approach This research used a systematic literature review to identify various risk elements in the Halal food supply chain and consolidate them with the expertise of professionals and academicians. Further, the fuzzy analytic hierarchical process (fuzzy AHP) is applied to prioritise the identified risk elements. Findings The findings of the research suggest that “supply-related risks” are the most prominent risk. Raw material integrity issue is a vital element in the Halal food supply chain. The failure of the supplier to deliver material that complies with Halal standards reduces the industrial economic advantage. This study recommends that the integration of internal processes and outsourcing elements can mitigate the risk of the Halal food supply chain by having a holistic view of the processing and delivery of Halal foods. Research limitations/implications Systematic literature review and experts’ opinion are used to identify and consolidate risks. For the literature review, only the SCOPUS database is used; thus, there is a chance to overlook some risk elements. Additionally, the fuzzy AHP analysis depends on relative preference weight. Therefore, care should be taken while constructing a pairwise comparison matrix for risk elements. Practical implications The findings of the study can help the managers who have a holistic view on risk mitigation of the Halal food supply chain. This study may assist managers to share information about the processing of Halal food from top to bottom to manage risk. Originality/value This study may act as a baseline for undertaking future research in the area of risk management of the Halal food supply chain.

Evaluation of barriers in the adoption of halal certification: a fuzzy DEMATEL approach

Abstract: Higher level of customer satisfaction for halal products can be achieved by the effective adoption of halal certification through assessment and accreditation (HCAA). There are certain issues that seem detrimental towards the adoption of HCAA. The purpose of this paper is to identify the major barriers towards the adoption of HCAA and evaluate inter-relationships among them for developing the strategies to mitigate these barriers.,The barriers towards the adoption of HCAA are identified through an integrative approach of literature review and expert’s opinion. The inter-relationship among the identified barriers is evaluated using fuzzy-based decision-making trial and evaluation laboratory (fuzzy DEMATEL) technique, which categorises them into influential and influenced group.,The evaluation of inter-relationship among barriers using fuzzy DEMATEL indicates four influencing barriers and six influenced barriers towards the adoption of HCAA. Further, findings suggest an extensive government, and management support is vital in terms of commitment, resources and actions to realise the benefits attributed with HCAA.,The inter-relationship among barriers is contextual and based on the perception of experts which may be biased as per their background and area of expertise. This study pertains to a specific region and can be extended to the generalised certification system.,The empirical base of the research provides the inter-relationship among the barriers towards the adoption of HCAA which can be effectively used as input in the decision-making process by producers, manufacturers and distributor. The policy maker can analyse the cause group and effect group of barriers to formulate policies that would help in the adoption of HCAA.

Using additive manufacturing applications for design and development of food and agricultural equipments

Abstract: Additive manufacturing (AM) plays a vital role in the globalised world as it provides innovative technologies to manufacture customised parts with different materials in different volumes. Food and agriculture sector needs extensive customisation towards designing and development of types of equipment. Through this paper, we are proposing an extensive usage of AM in these sectors. AM is capable for designing/production of customised/innovative food items such as coffee, pizza, burger, biscuits, cakes, chocolates and other everyday food items as per the required volume of ingredients, shape and colour. AM brings innovation in the agricultural sector, with its capability to produce customised physical models and making them directly for use onto the farms. It enables testing of obtained design towards flaws/productivity before the actual production of agricultural equipment in the factory. A farmer can be provided ergonomically useful and customised agricultural equipment as per the need of shape, size and design.

Analysing barriers towards management of Halal supply chain: a BWM approach

Abstract: Purpose Assurance of Halal integrity up to the consumption point requires a supply chain approach. Credence quality attributes of Halal products make adoption and management of Halal practices along the whole supply chain a challenging task. This paper aims to explore and evaluate the barriers in the management of the Halal supply chain. Design/methodology/approach This paper reviews the contemporary literature regarding Halal and management of Halal supply chain and subsequently identifies significant barriers towards managing the Halal supply chain. Further, these barriers are examined quantitatively using Best Worst Method. Findings This study has established significant barriers to Halal supply chain management. Moreover, prioritisation of barriers gives a hierarchy to mitigate these significant barriers. The analysis suggests that reduced demand for Halal products is the highly weighted barrier. Improper laws to regulate the Halal industry and lack of policy framework are hindering the effective management of the Halal supply chain. Research limitations/implications This study explored a limited number of barriers; it may be possible that some barriers might not have captured. Further, the identified barriers are generic and validated in the context of multicultural societies. Expert opinion has been used to obtain the weight of barriers which may be biased. Originality/value To the best of author’s knowledge, no study has categorically explored and presented a holistic framework to mitigate barriers of managing Halal practices in the supply chain.

Using integrated weighted IRP-Fuzzy TISM approach towards evaluation of initiatives to harmonise Halal standards

Abstract: Purpose Multiplicity and conflicting Halal standards involve unnecessary repetition of testing for demonstrating the Halal integrity of the process and the product, thus making it difficult for the Halal commodities to get traction in international markets. The purpose of this paper is to suggest initiatives to facilitate harmonisation of Halal standards as to eliminate trade barrier of Halal and to assure the availability of Halal consumables to larger masses. Design/methodology/approach Ranking of the initiatives for the harmonisation of Halal standards taking in consideration the costs of accomplishment and associated benefits obtained has been done through the application of integrated Interpretive Ranking Process (IRP) and Fuzzy Total Interpretive Structural Modelling (Fuzzy TISM). This integrated methodology with the weighted criteria have refined the value of the net dominance of different variables, thereby increasing the efficacy of IRP in decision making. Findings Findings suggest that strengthening the strategic coordination and collaboration among competent HCBs is a significant initiative. This initiative needs to be undertaken to mitigate the conflict between HCBs. This necessitates to develop a common platform in making the collective decision for effectively controlling Halal businesses. Moreover, recognising competent HCBs will prompt the effective implementation and execution of Halal standards across the supply chain, and ease the global trading of Halal products. A framework has been conceptualised to enable harmonisation of Halal standards which intimates to develop globally agreed protocols for Halal practices. Practical implications The framework presented may act as a prelude to harmonise Halal standards and may positively affect the international trade of Halal commodities by phasing out the discriminatory and market-impeding standards. Originality/value A harmonised system may provide correct information to the stakeholders and may help in making an informed decision.

Technology forecasting (TF) and technology assessment (TA) methodologies: a conceptual review

Abstract: Technology forecasting (TF) and assessment (TA), all in all, apply to any intentional and deliberate endeavours to forecast and view the potential heading, rate, attributes and impacts of technological change, especially for development, advancement, selection and utilisation of resources, which ultimately helps in the benchmarking. A vast variety of methods are available for TF and TA. Till now, practically, no exertion has been made to choose proper, satisfactory innovation methods or technology. The paper aims to discuss this issue.,In this paper, there is an endeavour to summarise the vast field of TF and TA, through its evolution, functions, applications and techniques. This paper provides the in-depth review of the utilisation of TF and TA methodologies and its improvement, which helps the users in selecting the appropriate method of TF and TA for a specific situation.,This study concludes that the quest for a single strategy for doing forecast and assessment is a misconception. This neglects to perceive that forecast and assessment oblige a suitable blend of strategies and methods drawn from a variety of fields. Researchers and practitioners must be innovative, imperative and specialised in choosing TF and TA methodologies, and cannot be programmed.,The technology seems to be the most significant driver of the present day global developments. Some technologies have far-reaching implications, and the authors need to understand these issues regarding its’ forecasting and its assessment.,The decision of proper worthy procedure amid a circumstance may have an impact on the exactness and reliability of the forecast and assessment. Significant observations regarding learning, action/s, actor/s and expected outcomes are discussed.

Effect of variable infill density on mechanical behaviour of 3-D printed PLA specimen: an experimental investigation

Abstract: Fused deposition modelling (FDM) is one of the additive manufacturing technique, widely accepted due to its ‘easy to use’ technology. The set process parameters during FDM printing, affect the mechanical behaviour of the built part. The objective of this study is to investigate the effect of variable infill density on the tensile and impact strength of polylactic acid (PLA) specimens printed by an open-source 3D printer. The tensile and impact test specimens are printed according to the DIN EN ISO 527-2, ASTM D256 (Izod) and ASTM D6110 (Charpy) respectively. A computerised tensometer and impactometer used to conduct the tensile and the impact strength of the PLA specimens. The tensile strength with the highest value of 46.3 N/mm2 and the lowest value of 29.9 N/mm2 are found. The results demonstrate that the specimens with varying infill density exhibit better tensile strength than the specimens with single infill density. The varying infill density specimens weigh lighter as compared to single infill density, which saves the raw material. The highest Charpy and lowest Izod strength found to be 4.72 kJ/m2 and 1.7 kJ/m2. The impact test experimental data establishes that impact strength is directly proportional to the infill density. Thus, by varying the infill density, there is a reduction in the impact strength of the printed specimens.

Halal certification, the inadequacy of its adoption, modelling and strategising the efforts

Abstract: Purpose Need for effective adoption of halal certification through assessment and accreditation (HCAA) is imperative for the higher level of customer satisfaction. To achieve this, all stakeholders need to be involved in developing the policy. Thus, this study aims to identify barriers to the adoption of HCAA and analyses through structural model of interrelated barriers Design/methodology/approach The structural and hierarchical model of barriers to the adoption of HCAA is developed after extensive systematic literature survey along with opinions from various types of experts. Interpretive structural modelling is identified as the appropriate tool in making this model, which is further analysed using MICMAC (Matriced’ Impacts croises-multipication applique’ and classment). Corresponding issues for every barrier as identified may help in further developing the action plan for each stakeholder. Objectives and action plan for various stakeholders were evolved and provided. Findings The significant finding indicates to developing a globally accepted halal certifying organisation, as to contain the mislabelling, and this further needs extensive government and customer support. The customer needs to be more aware of the proper idea of halal. Therefore, to succeed, the industry needs to develop a brand identity with a distinct/unique/clear marketing message, not just certifying products/services as halal. Originality/value Specific direction for different stakeholders has been derived along with academic finding for researchers and to further develop the action plan.

Development of hydraulic cross floating valve.

Abstract: This paper describes the design, simulation, development, and analysis of a Cross Floating Valve (CFV), an important instrument used in a cross float or pressure calibration system of pressure balances (PBs) to make the calibration process easy and time efficient. The design aspects of the CFV include the selection of proper materials and modeling of various necessary components of the CFV. For the piston design, 5 different materials, SS304, SS316, Aermet 340, SS440C, and AISI17-4PH were used. After the design, simulation studies were carried out using the ANSYS (Workbench R15.0) software to understand the behavior of stress, strain, and deformation. Out of the 5 materials thus used, the values of the factor of safety of 2 materials (SS304 and SS316) were found to be below expectations and hence were not used in the fabrication process. Among the rest of the 3 other materials (AISI17-4PH, SS440C, and Aermet 340) having a factor of safety within the expected limits, Aermet 340 was also ignored because of its high cost. Finally, AISI17-4PH and SS440C were used to fabricate the piston, the most important and critical component of the CFV. The final CFV thus developed was tested for its performance in the cross floating experiments with 2 different sets of PBs. The results thus obtained show that the use of CFV reduces the calibration time considerably which is approximately 30% (average time of increasing and decreasing orders of pressure) from the time taken in performing calibration without using CFV, which is a significant achievement.

Comparison of Monte Carlo Simulation, Least Square Fitting and Calibration Factor Methods for the Evaluation of Measurement Uncertainty Using Direct Pressure Indicating Devices

Abstract: At present, several measuring instruments are commercially available in the market for accurate and precise pressure measurements. In case of electromechanical type pressure sensors, the evaluation of measurement uncertainty is always a tedious task for researchers due to lack of availability of the suitable and well-defined mathematical model. In order to harmonize the method of evaluation of measurement uncertainty associated with measuring instruments, “The Guide to the Expression of Uncertainty in measurement,” published by International Standard Organization, is a major directional guide which is equally important in pressure metrology. The present paper describes the various uncertainty propagation models developed for the evaluation of measurement uncertainty associated with direct pressure indicating devices (DPIDs). A detailed comparative study is presented while using Monte Carlo simulation, least square fitting and calibration factor methods for the evaluation of measurement uncertainty using a DPID. In order to judge the feasibility and practical applicability of these contemporary methods, it is demonstrated through an example of a case study on the results thus obtained on a DPID that results using three different approaches are in excellent agreement and quite comparable.

Assessing innovativeness of manufacturing firms using an intuitionistic fuzzy based MCDM framework

Abstract: The purpose of this paper is to provide a framework for assessing the overall innovativeness of manufacturing firms using a multi-attribute group decision-making methodology.,This study identifies the indicators of firms’ innovativeness from the literature. The concept of neutrosophic numbers has been used to assign different importance weights to individual decision makers to account for the differences in their educational backgrounds and practical experience. An intuitionistic fuzzy based TOPSIS procedure is adapted for ranking the candidate firms based on their performance on identified criteria. The implementation of the proposed methodology is demonstrated through an explanatory example. Sensitivity analysis is carried out to judge the robustness of the proposed framework.,The proposed framework provides an efficient and reliable tool to subjectively evaluate and compare the innovativeness of manufacturing firms. The sensitivity analysis shows that the methodology is robust enough to absorb the noise factors/errors/variations, etc.,Motivated by this work, future studies can consider developing an integrated innovativeness index for evaluation of innovativeness of manufacturing firms. The concept of interval valued intuitionistic fuzzy and neutrosophic sets can be utilized to reduce the margin of perceptual errors even further.,The study will provide the firms with a framework for benchmarking their innovative performance. The firms can analyze their current performance and reconfigure their resources and capabilities suitably to improve their competitive position.,This study is one of the few attempts that have been made to articulate a firm level innovativeness assessment tool for manufacturing firms operating in an industry sector. Advanced concepts of fuzzy and neutrosophic sets have been utilized to eliminate the chances of bias/perceptual errors that most often affect the quality of decisions in today’s dynamic and uncertain decision-making environment.

Analysing Attributes of Food Supply Chain Management: A Comparative Study

Abstract: With increasing human population and food variety, there is a challenge to provide quality and requisite food to people at the right time at the right place. Food supply chain management (FSCM) needs to analyse due to its complex nature. The objective of this paper is to review the food supply chain management (FSCM) and identify the significant attributes and further analyses them to differentiate from each other. The identified critical attributes of SCM are relationship and governance, coordination and integration, collaboration, agility, logistics, traceability, packaging, and waste management. We have distinguished the food supply chain (FSC) from other supply chains, because of the unique characteristics of the food products which pose a serious challenge. Based on the identified attributes, we have undertaken a comparative analysis of FSCM with non-food supply chain’s management (Non-FSCM). The findings suggest towards the importance of traceability and packaging systems in FSC as compared to a Non-FSC.

Enablers, Barriers, and Critical Success Factors for Effective Adoption of Color-Jet 3D Printing Technology

Abstract: Color-jet 3D printing (CJP) technology-based machines are now being developed, and there is a need to identify the successful adoption of this technology for additive manufacturing (AM). Extensive ...