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Article
Publication date: 10 June 2014

Sameer C. Raghatate, Abhaykumar M. Kuthe, Tushar R. Deshmukh and Sandeep W. Dahake

The main purpose of this paper is to report the successful treatment modality for patients suffering from arthritis of the metatarsophalangeal joint (MTPJ) of the foot which…

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Abstract

Purpose

The main purpose of this paper is to report the successful treatment modality for patients suffering from arthritis of the metatarsophalangeal joint (MTPJ) of the foot which otherwise could not be treated through traditional surgeries.

Design/methodology/approach

The unique capabilities of the computer-aided design and the rapid prototyping (RP) technology are used to develop the customized MTPJ implant (SamKu).

Findings

This approach shows good results in the fabrication of the MTPJ implant. Postoperatively, the patient experienced normalcy in the movement of the MTPJ of the foot.

Practical implications

Advanced technologies made it possible to fabricate the customized MTPJ implant (SamKu). The advantage of this approach is that the physical RP model assisted in designing the final metallic implant. It also helped in the surgical planning and the rehearsals.

Originality/value

This case report illustrates the benefits of imaging/computer-aided manufacturing/RP to develop the customized implant and serve those patients who could not be treated in the traditional way. This is a pioneered attempt toward implementation of a customized implant for patients suffering from arthritis of the MTPJ.

Details

Rapid Prototyping Journal, vol. 20 no. 4
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 1 August 2008

Dilip Ingole, Abhaykumar Kuthe, Tushar Deshmukh and Satish Bansod

The purpose of this paper is to illustrate the classification and coding system developed for the rapid prototyping (RP) industry.

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Abstract

Purpose

The purpose of this paper is to illustrate the classification and coding system developed for the rapid prototyping (RP) industry.

Design/methodology/approach

The similarities among RP part geometries and processes are identified and related for the development of rapid prototyping coding system (RPCS).

Findings

RPCS forms a base for developing “prototyping philosophy” to take advantage of parts similarities in determination of optimal build orientation and optimization of part building cost.

Research limitations/implications

Most of the examples are limited to parts built by fused deposition modelling process. But, the concept is applicable to any existing RP process.

Practical implications

RPCS implementation is suitable in industries where variety of RP parts are in use.

Originality/value

This is the first attempt towards development of a formal coding system for the RP industry.

Details

Rapid Prototyping Journal, vol. 14 no. 4
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 24 September 2024

Sagar H. Mane, Tushar S. Wagh, Gotan H. Jain and Madhavrao K. Deore

The study aims to develop an inexpensive metal oxide semiconductor gas sensor with high sensitivity, excellent selectivity for a specific gas and rapid response time.

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Abstract

Purpose

The study aims to develop an inexpensive metal oxide semiconductor gas sensor with high sensitivity, excellent selectivity for a specific gas and rapid response time.

Design/methodology/approach

This study synthesized Zn2SnO4 nanostructures using a hydrothermal method with a 1 M concentration of zinc chloride (ZnCl2) as the zinc source and a 0.7 M concentration of tin chloride (SnCl4) as the tin source. Thick films of nanostructured Zn2SnO4 were then produced using screen printing. The structural properties of Zn2SnO4 were confirmed using X-ray diffraction, and the formation of Zn2SnO4 nanoparticles was verified by transmission electron microscopy. Scanning electron microscopy was used to analyse the surface morphology of the fabricated material, while energy dispersive spectroscopy provided insight into the chemical composition of the thick film. These fabricated thick films underwent testing for various hazardous gases, including nitrogen dioxide, ammonia, hydrogen sulphide (H2S), ethanol and methanol.

Findings

The nanostructured Zn2SnO4 thick film sensor demonstrates a notable sensitivity to H2S gas at a concentration of 500 ppm when operated at 160°C. Its selectivity, response time and recovery time were assessed and documented.

Research limitations/implications

The primary limitations of this research on metal oxide semiconductor gas sensors include poor selectivity to specific gases, limited durability and challenges in achieving detection at room temperature.

Practical implications

The nanostructured Zn2SnO4 thick film sensor demonstrates a strong response to H2S gas, making it a promising candidate for commercial production. The detection of H2S is crucial in various sectors, including industries and sewage plants, where monitoring this gas is essential.

Social implications

Currently, heightened global apprehension about atmospheric pollution stems from the existence of perilous toxic and flammable gases. This underscores the imperative need for monitoring such gases. Toxic and flammable gases are frequently encountered in both residential and industrial environments, posing substantial hazards to human health. Noteworthy accidents involving flammable gases have occurred in recent years. It is crucial to comprehend the presence and composition of these gases in the surroundings for precise detection, measurement and control. Thus, there has been a significant push for extensive research and development in diverse sensor technologies using various materials and methodologies to monitor and regulate these gases effectively.

Originality/value

In this research, Zn2SnO4 nanostructures were synthesized using a hydrothermal method with ZnCl2 at a concentration of 1 M for zinc and SnCl4 at a concentration of 0.7 M for tin. Thick films of nanostructured Zn2SnO4 were then fabricated via screen printing technique. Following fabrication, all thick films were subjected to testing with various toxic gases, and the results were compared to previously published data. The analysis indicated that the nanostructured Zn2SnO4 thick film sensor demonstrated outstanding performance concerning gas response, gas concentration, selectivity and response time, particularly towards H2S gas.

Details

Sensor Review, vol. 45 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

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Case study
Publication date: 19 March 2024

Cledwyn Fernandez and Archana Boppolige Anand

After completion of the case study, the students will learn about the blue ocean strategies that are adopted by entrepreneurs when they are entering into a new business territory…

Abstract

Learning outcomes

After completion of the case study, the students will learn about the blue ocean strategies that are adopted by entrepreneurs when they are entering into a new business territory and be able to perform an industry analysis and understand the competitive advantage that a firm possesses in a new market using Porter’s five forces framework.

Case overview/synopsis

This case study is about Sushant, an entrepreneur, who started his entrepreneurial venture in water sports tourism along the coastlines of India. His core business was into offering kayaking and camping activities. However, he planned to scale up his business by expanding its geographical reach. To fulfill this, he was also planning to manufacture his own kayaks, which would increase economies of scale in the long run. This case study investigates the dilemma of whether he should first increase his service offerings before expanding geographically or focus on geographical expansion and then increase service offerings.

Complexity academic level

This case is designed to be taught at the post-graduate level (Master of Business Administration) for an entrepreneurship course.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS3: Entrepreneurship.

Details

Emerald Emerging Markets Case Studies, vol. 14 no. 1
Type: Case Study
ISSN: 2045-0621

Keywords

Available. Open Access. Open Access
Article
Publication date: 21 September 2023

Krishna K. Tummala

This paper examines the decline of the largest working parliamentary democracy in India overtime, but accelerating since 2014 as the Bharatiya Janata Party (BJP), under the…

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Abstract

Purpose

This paper examines the decline of the largest working parliamentary democracy in India overtime, but accelerating since 2014 as the Bharatiya Janata Party (BJP), under the leadership of Prime Minister Narendra Modi at the Center (as the federal government is commonly known).

Design/methodology/approach

It is eclectic. Original constitution, along with commentaries, are studied. News outlets, government pronouncements, journal articles, and other media outlets — electronic and print — are also sourced.

Findings

The findings show how three important features in democracy — elections and their outcomes, control of information, and suppression of dissent are widely used to undermine constitutional democracy.

Originality/value

Democracy can be undermined without altering the Constitution itself. It also explains the irony of Modi’s popularity, given the undemocratic practices. As he may continue in office for some time to come, commanding a log-rolling majority, the need of the hour is a united, constructive and effective opposition to ensure a healthy working democracy.

Details

Public Administration and Policy, vol. 26 no. 3
Type: Research Article
ISSN: 1727-2645

Keywords

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Case study
Publication date: 11 October 2024

Shwetha Kumari and Vineeth M

After completion of the case study, students will be able to analyse the path of the entrepreneurship from idea generation to market development to scaling up business, examine…

Abstract

Learning outcomes

After completion of the case study, students will be able to analyse the path of the entrepreneurship from idea generation to market development to scaling up business, examine the impact of start-ups like Ergos on India’s agriculture value chain, discuss the challenges faced by tech entrepreneurs in growing a business, identify problems solved by Grain Bank Model and evaluate digitisation of farming’s custodial services such as warehousing, market linkages and loans.

Case overview/synopsis

The case study discusses how founders of Ergos, India-based leading digital AgriTech start-up, Kishor Kumar Jha and Praveen Kumar, started one of the unique models in the AgriTech landscape in India. After noticing the grim condition of small and marginal farmers in Bihar, India. Kishor and Praveen decided to put their banking and corporate experience to use in the farming sector. Ergos aimed to empower farmers by providing them with a choice on when, how much quantity, and at what price they should sell their farm produce, thus maximising their income. As a result, Ergos launched the grain bank model, which provided farmers with doorstep access of end-to-end post-harvest supply chain solutions by leveraging a robust technology platform to ensure seamless service delivery. Ergos faced many challenges in its journey related to financing, marketing and distribution. Amidst these developments, it remained to be seen how Kishor and Praveen would be able to realise their goal to serve over two million farmers across India by 2025 and create a sustainable income for them through its GrainBank Platform.

Complexity academic level

This case study was written for use in teaching graduate and postgraduate management courses in entrepreneurship and business strategy.

Supplementary materials

Teaching notes are available for educators only.

Subject code

CSS 3: Entrepreneurship

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Article
Publication date: 1 October 2024

Khushnuma Wasi, Zuby Hasan, Nakul Parameswar, Jayshree Patnaik and M.P. Ganesh

Tech start-ups (TSs) functioning in different domains have a responsibility of ensuring that domestic knowledge and capabilities are leveraged to minimize dependence on foreign…

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Abstract

Purpose

Tech start-ups (TSs) functioning in different domains have a responsibility of ensuring that domestic knowledge and capabilities are leveraged to minimize dependence on foreign organizations. Despite the growth of the ecosystem, while numerous TSs emerge, very few of them are able to survive, and of those that survive, very few scale up. The aim of this study is to identify the factors influencing the competitiveness of technological start-ups and to study the interrelationship and interdependence of these factors.

Design/methodology/approach

Modified total interpretative structural modeling (m-TISM) was employed for the current research. The analysis of what factors have an effect on competitiveness, how they affect it and why they affect it should be explored. The study begins by developing the list of factors through literature search, and further it is validated by expert opinion. A hierarchical model has been developed using m-TISM and MICMAC analysis to analyze the driving and dependency power of factors at each level.

Findings

Results show that the competitiveness of TSs is affected by organizational agility and internationalization. Factors present at the bottom level, namely entrepreneurial intensity, act as a strong driver for TSs. Team member commitment, transformational leadership, strategic alliances, knowledge sharing and organizational ambidexterity are middle-level factors.

Originality/value

This study is among the few articles that have explored competitiveness of TSs in the Indian context.

Details

International Journal of Productivity and Performance Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-0401

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