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Article
Publication date: 24 June 2020

Prashant Jindal, Mamta Juneja, Divya Bajaj, Francesco Luke Siena and Philip Breedon

3D printing techniques have been widely used for manufacturing complex parts for various dental applications. For achieving suitable mechanical strength, post-cure processing is…

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Abstract

Purpose

3D printing techniques have been widely used for manufacturing complex parts for various dental applications. For achieving suitable mechanical strength, post-cure processing is necessary, where the relative time duration and temperature specification also needs to be defined. The purpose of this study/paper is to assess the effects of post curing conditions and mechanical properties of 3D printed clear dental aligners

Design/methodology/approach

Dental long-term clear resin material has been used for 3D printing of dental aligners using a Formlabs 3D printer for direct usage on patients. Post-curing conditions have been varied, all of which have been subjected to mechanical compression loading of 1,000 N to evaluate the curing effects on the mechanical strength of the aligners.

Findings

The experimental studies provide significant insight into both temperatures and time durations that could provide sufficient compressive mechanical strength to the 3D printed clear dental aligners. It was observed that uncured aligners deformed plastically with large deformations under the loading conditions, whereas aligners cured between 400°C–800°C for 15–20 min deformed elastically before fragmenting into pieces after safely sustaining higher compressive loads between 495 N and 666 N. The compressive modulus ratio for cured aligners ranged between 4.46 and 5.90 as compared to uncured aligners. For shorter cure time durations and lower temperature conditions, an appropriate elevated compressive strength was also achieved.

Originality/value

Based on initial assessments by dental surgeons, suitable customised clear aligners can be designed, printed and cured to the desired levels based on patient’s requirements. This could result in time, energy and unit production cost savings, which ultimately would help to alleviate the financial burden placed on both the health service and their patients.

Details

Rapid Prototyping Journal, vol. 26 no. 8
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 31 October 2018

Deepkamal Kaur Gill, Kartikeya Walia, Aditi Rawat, Divya Bajaj, Vipin Kumar Gupta, Anand Gupta, Mamta Juneja, Rakesh Tuli and Prashant Jindal

To relieve intracranial pressure and save patient inflicted with severe head injury, neurosurgeons restore cranial defects. These defects can be caused because of trauma or…

315

Abstract

Purpose

To relieve intracranial pressure and save patient inflicted with severe head injury, neurosurgeons restore cranial defects. These defects can be caused because of trauma or diseases (Osteomyelitis of bone) which are treated by cranioplasty, using the preserved bone of patient. In case of non-availability of bone, a cranial implant is generated using a biocompatible synthetic material, but this process is less accurate and time-consuming. Hence, this paper aims to present the use of rapid prototyping technology that allows the development of a more accurate patient-specific template and saves the surgery time.

Design/methodology/approach

A five-year-old girl patient having cranial defect was taken up for cranioplasty. CT (computed tomography) scans of the patient were used to generate 3D design of the implant suitable to conceal the defect on the left frontal portion using CAD/CAM (computer-aided design/ computer-aided manufacturing) software. The design was used for 3D printing to manufacture a base template, which was finally used to fabricate the actual implant using Simplex® P bone cement material to conceal the defect.

Findings

Surgery using Simplex® P implant was performed successfully on the patient, giving precise natural curvature to left frontal portion of the patient, decreasing surgery time by about 30 per cent.

Originality/value

The case demonstrates the development of a convenient, time-saving and aesthetically superior digital procedure to treat cranial defect in the absence of preserved bone flap using CT scan as input. 3D modelling and printing were deployed to produce an accurate template which was used to generate an implant using bone cement biocompatible material.

Details

Rapid Prototyping Journal, vol. 25 no. 2
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 2 October 2024

Nivisha Singh, Prashant Salwan, Sachin Kumar Mangla and Demetris Vrontis

The purpose of this study is to provide a holistic view of how the different dimensions of absorptive capacity (AC) impact reverse knowledge transfer (RKT). Although the…

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Abstract

Purpose

The purpose of this study is to provide a holistic view of how the different dimensions of absorptive capacity (AC) impact reverse knowledge transfer (RKT). Although the importance of AC has been realized in knowledge and RKT literature, scholars have hardly explored the differentiated importance of each component of AC. When knowledge leads to competitive advantage, understanding the differentiated contribution will help enhance the impact of AC on RKT. This becomes even more important for emerging economy multinationals (EMNCs), which struggle in the global market and suffer from various liabilities. Therefore, this study focuses on the multidimensional impact of AC on RKT from Indian multinational subsidiaries based in developed nations to their parent firm.

Design/methodology/approach

This study is a quantitative study. The authors tested the research model using a structural equation modeling design based on survey data collected from subsidiaries (in developed economies) of Indian multinationals.

Findings

The results show that acquisition, assimilation and transformation components of AC have positive impact on RKT. However, the authors found that the exploitation dimension has no impact on RKT.

Originality/value

To the best of the authors’ knowledge, the research design is original and this is the first study on the impact of all components of AC on RKT. AC is one of the most widely researched variables in knowledge literature, including different versions of Zahra and George’s concept of AC. However, its impact has not been explored much in RKT literature. This study addresses this gap and extends the literature on AC and RKT. The advantages of this study can be seen at the team and organization level.

Details

Journal of Knowledge Management, vol. 29 no. 1
Type: Research Article
ISSN: 1367-3270

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Article
Publication date: 24 November 2023

Poonam Kumar, Sumedha Chauhan, Satish Kumar and Prashant Gupta

In mobile banking (m-banking), understanding the factors contributing to customer satisfaction is crucial for bank managers to design effective strategies for enhancing the uptake…

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Abstract

Purpose

In mobile banking (m-banking), understanding the factors contributing to customer satisfaction is crucial for bank managers to design effective strategies for enhancing the uptake of mobile banking services. This study assesses the relationships between quality, technology acceptance and credibility factors and behavioural outcomes (actual use, continuance intention and loyalty) and satisfaction with m-banking. It further investigates the moderating influence of economy type, innovation level, connectivity level and sample size on all these relationships.

Design/methodology/approach

The study employs a meta-analysis technique and reviews 54 published studies to investigate the antecedents and consequences of satisfaction with m-banking.

Findings

The study finds a significant relationship between satisfaction with m-banking and quality, technology acceptance and credibility factors and behavioural outcomes. It concludes that the moderating effect of economy type, innovation level, connectivity level and sample size partially moderate the majority of the hypothesized relationships.

Research limitations/implications

Drawing on a comprehensive literature review, this study presents a novel framework elucidating the antecedents and behavioural outcomes of satisfaction with mobile banking. It contributes to the literature by exploring the moderating effects of sample size and country context on the relationships between these factors, presenting important implications for future mobile banking research.

Practical implications

This study has practical implications for m-banking service providers, offering insights into the factors that drive user satisfaction with mobile banking and highlighting the need for tailored strategies in different country contexts.

Originality/value

This study examines the effects of factors leading to satisfaction and the subsequent outcomes within the context of m-banking. The findings offer fresh perspectives that can be valuable for managers and policymakers, enabling them to enhance customer satisfaction in the realm of m-banking.

Details

International Journal of Bank Marketing, vol. 42 no. 3
Type: Research Article
ISSN: 0265-2323

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Article
Publication date: 21 April 2023

Poonam Kumar, Sumedha Chauhan, Prashant Gupta and Mahadeo Prasad Jaiswal

In mobile banking (m-banking), knowing and understanding trust-related factors can enable bank managers to design suitable strategies for enhancing its overall uptake. Based on…

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Abstract

Purpose

In mobile banking (m-banking), knowing and understanding trust-related factors can enable bank managers to design suitable strategies for enhancing its overall uptake. Based on this premise, the present study assesses the relationship of trust in m-banking with technology acceptance and use factors, quality factors, risk factors and a personal factor as well as behavioral outcomes. The study further investigates the moderating influence of Hofstede’s cultural dimensions on these relationships.

Design/methodology/approach

The present study synthesizes the outcomes of 63 quantitative studies on trust in m-banking by using the meta-analysis technique.

Findings

The study finds a significant relationship of trust in m-banking with technology acceptance and use factors, quality factors, risk factors, a personal factor and behavioral outcomes. Additionally, Hofstede’s cultural dimensions, namely power distance, individualism/collectivism, masculinity/femininity and uncertainty avoidance, significantly moderate the majority of the hypothesized relationships.

Research limitations/implications

By reviewing the extant literature, this study provides a comprehensive framework that explains the antecedents and behavioral outcomes of trust in m-banking and determines how these relationships effectively vary across cultures.

Practical implications

The study helps m-banking service providers to understand how trust in m-banking can be enhanced. The study also shows which factors are more impactful in a particular culture.

Originality/value

This is an original study that contributes to the m-banking marketing literature.

Details

International Journal of Bank Marketing, vol. 41 no. 6
Type: Research Article
ISSN: 0265-2323

Keywords

Available. Content available
Book part
Publication date: 2 December 2024

Abstract

Details

The Metaverse Dilemma: Challenges and Opportunities for Business and Society
Type: Book
ISBN: 978-1-83797-525-9

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Article
Publication date: 20 November 2017

Raj Kumar Bhardwaj and Sanjay Kumar

The purpose of this paper is to understand the perception of visually impaired undergraduate students about the digital environment in their institutions and develop an online…

1846

Abstract

Purpose

The purpose of this paper is to understand the perception of visually impaired undergraduate students about the digital environment in their institutions and develop an online information system suiting their requirements.

Design/methodology/approach

A survey was conducted on undergraduate students enrolled in ten colleges of the University of Delhi. A total of 95 visually impaired students were interviewed individually. Data collected from the respondents were analyzed and interpreted using simple percentage method and is presented in the form of figures.

Findings

The study found that maximum (35.8 percent) respondents access online electronic resources daily. Major constraints faced by them are as follows: inaccessibility of the college notice board, lack of accessibility to existing facilities and resources, lack of assistive technology facilities and unavailability of readers and writers. In total, 51.6 percent respondents indicated that it is cumbersome to access the college website because they are not designed according to the accessibility standards developed for visually impaired students. The respondents also revealed that they are not very familiar with useful devices like Vachak (Hindi Reading Device), SARA CE, Lex (Scanner for Hindi Script). The major reason cited by them is the lack of training and non-availability of trained staff.

Research limitations/implications

DigitVaran contains course contents of the University of Delhi. Course contents of other Universities are not included. However, it is expected that contents related to the syllabi of other universities would be added in future.

Practical implications

The study will help visually impaired students to get the desired course contents conveniently. In addition, librarians of other universities can utilize the findings of the study to develop a comprehensive digital environment for visually impaired students. The study can be helpful in the assessment of digital infrastructure and services to visually impaired students by National Assessment and Accreditation Council and other funding agencies.

Originality/value

The study developed an information system DigitVaran to assist visually impaired undergraduate students in India. The system will help them to access the study materials and make aware of various extracurricular activities of the institutions.

Details

Library Hi Tech, vol. 35 no. 4
Type: Research Article
ISSN: 0737-8831

Keywords

Available. Open Access. Open Access

Abstract

Details

Journal of Intelligent Manufacturing and Special Equipment, vol. 4 no. 1
Type: Research Article
ISSN: 2633-6596

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Case study
Publication date: 31 March 2016

Sunil Sharma, Saral Mukherjee and Parvinder Gupta

The three cases (Case A: JSW Steel's Ispat Acquisition: The Opportunity; Case B: JSW Steel's Ispat Acqusition: The Setback & Case C: JSW Steel's Ispat Acquisition: The Turnaround…

Abstract

The three cases (Case A: JSW Steel's Ispat Acquisition: The Opportunity; Case B: JSW Steel's Ispat Acqusition: The Setback & Case C: JSW Steel's Ispat Acquisition: The Turnaround Strategy) describe the business situation leading to acquisition of Ispat by JSW, the acquirer company's failure to realize synergies post-acquisition, and the subsequent turnaround initiatives to salvage the situation. In 2010, JSW Steel, a 14 mtpa Indian steel company acquired Ispat Steel with annual production capacity of 3 mtpa. The acquisition was part of JSW's multipronged strategy to realize its aspiration of being a 40 mtpa firm. At the time of acquisition, Ispat had huge debts, a long pipeline of unfinished projects, high production costs and unpredictable cash flows. Its main plant, Dolvi was shutdown for 45 days. However, the plant also had numerous advantages. It was located near the seashore and was technologically very advanced. Case A describes the events leading to acquisition of Ispat by JSW. It captures the facts, opinions and inferences around the acquisition decision, which were used as inputs in the due diligence process to assess synergies between JSW and Ispat. The case describes the economic, competitive, and industry factors prevailing in 2010 when JSW was thinking of acquiring Ispat.

Details

Indian Institute of Management Ahmedabad, vol. no.
Type: Case Study
ISSN: 2633-3260
Published by: Indian Institute of Management Ahmedabad

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Article
Publication date: 10 August 2023

Prashant Sharma, Dinesh Kumar Sharma and Prashant Gupta

Option pricing theory enables computation of the price of an option using different variables associated with the underlying security and options contract. The purpose of this…

713

Abstract

Purpose

Option pricing theory enables computation of the price of an option using different variables associated with the underlying security and options contract. The purpose of this study is to assess research trends that emerged in the field of option pricing. This study reviews existing literature of the option pricing domain, both qualitatively and quantitatively, and identifies potential themes for future research.

Design/methodology/approach

This study adopts bibliometric analysis method to explore literature published in the option pricing domain. As part of bibliometric analysis, this study considers both descriptive and network analysis to assess publication trends. For descriptive analysis, the “bibliometrix” package proposed by Aria and Cuccurullo (2017) is used and for network analysis, VOS viewer (Van Eck and Waltman, 2017) and Gephi (Bastian et al., 2009) are used.

Findings

This study identifies research trends, top researchers, articles, journals and contributions from institutions and countries in the option pricing domain. It identifies four clusters that show different directions and also focuses on past studies on the same subject. It explores research gaps by performing an in-depth analysis of existing literature on option pricing and suggests the way forward for research in this area.

Originality/value

To the best of the authors’ knowledge, no previous studies have attempted to analyze the literature published in the option pricing domain. This study fulfils this research gap by conducting a comprehensive analysis of studies in the option pricing area. This study identifies quality research work published in the domain, research trends, contribution by most relevant researchers, contributions across geographies and institutions and the connections among these aspects. This study also identifies important themes and provides directions for future research.

Details

Qualitative Research in Financial Markets, vol. 16 no. 1
Type: Research Article
ISSN: 1755-4179

Keywords

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