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…
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.
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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.
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.
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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.
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.
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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.
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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…
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.
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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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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…
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.