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Article
Publication date: 12 March 2019

Durga Devi R. and Nageswari S.

The purpose of this paper is to propose a mathematical model for voltage super-lift dc-dc power converter in continuous conduction mode (CCM). Using the presented mathematical…

Abstract

Purpose

The purpose of this paper is to propose a mathematical model for voltage super-lift dc-dc power converter in continuous conduction mode (CCM). Using the presented mathematical model, the analysis of dynamics of power stage for voltage super-lift dc-dc power converter can be performed.

Design/methodology/approach

The proposed method is based on the average state space model using the state equations of the dc-dc power converter. In the proposed method, the converter is represented as a set of differential equations derived for each switching state of the power switch in terms of inductor current and capacitor voltage. The proposed method describes the dynamic behaviour of the system. The controller is designed to meet performance requirement of the system such as to maintain the dynamics such as stability, steady-state accuracy and the speed of response of the system. Using the obtained model, the analysis of dynamic response of the voltage super-lift dc-dc power converter can be performed.

Findings

The converter is modelled and verified using conventional circuit analysis method employing state-space averaging technique, and their corresponding transfer function is also derived. The dynamics of the converter is investigated using frequency response characteristics obtained using MATLAB programming environment. In addition, to improve the stability of the converter, proportional-integral controller is designed using Ziegler–Nichols tuning rules, and the effect of the compensator in the plant is also investigated.

Originality/value

The proposed method can be used for analysing the dynamics of power stage for voltage super-lift DC-DC power converter.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 38 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 18 July 2019

Swetha Andra, Murugesan Muthalagu, Jaison Jeevanandam, Durga Devi Sekar and Rajalakshmi Ramamoorthy

A widespread focus on the plant-based antimicrobial cotton fabric finishes has been accomplished with notable importance in recent times. The antimicrobials prevent microbial…

Abstract

Purpose

A widespread focus on the plant-based antimicrobial cotton fabric finishes has been accomplished with notable importance in recent times. The antimicrobials prevent microbial dwelling in fabrics, which causes severe infections to the fabric users. Chemical disinfectants were conventionally used in fabrics to address this challenge; however, they were found to be toxic to humans. Thus, the present study aims to deal with the utilization of phytochemical extracts from different parts of Pongamia pinnata as antimicrobial coatings in cotton fabrics.

Design/methodology/approach

The root, bark and stem were collected and washed several times using tap water. Then, the leaves were dried at room temperature and the root and bark were dried using an oven at 40ºC. After drying, they were ground into fine powder and extracted with ethanol using the Soxhlet apparatus. After that the extract was coated on the fabric tested for antimicrobial studies.

Findings

The results reported that the leaf extract of P. pinnata-coated fabric exhibited enhanced antibacterial property towards gram-negative Escherichia coli bacteria, followed by root, bark and stem. The wash durability test in the extract-coated fabric samples revealed that dip-coating retained antibacterial activity until five washes. Thus, the current study clearly suggests that the leaf extract from P. pinnata is highly useful to develop antibacterial cotton fabrics as health-care textiles.

Originality/value

The novelty of the present work is to obtain the crude extract from the leaves, bark, root and stem of P. pinnata and evaluate their antibacterial activity against E. coli, upon being coated on cotton fibres. In addition, the extracts were subjected to wash durability analysis to study the coating efficiency of the phytochemicals in cotton fabrics and a probable mechanism for the antibacterial activity of P. pinnata extracts was also presented.

Details

Research Journal of Textile and Apparel, vol. 23 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 15 July 2020

Arathi Krishna and Devi Soumyaja

High incidence of workplace bullying in Indian organizations is well-acknowledged, but less is known about the games that bullies play to create a favorable atmosphere for…

Abstract

Purpose

High incidence of workplace bullying in Indian organizations is well-acknowledged, but less is known about the games that bullies play to create a favorable atmosphere for bullying in academic institutions. This study aims to reveal the “safe game” tactics that the bullies use to chase targets like a predator chases his prey.

Design/methodology/approach

The study explores various manifestations of academic bullying by analyzing the victimization experiences of women faculty in academic institutions. The data were collected through in-depth, semi-structured interviews and informal discussions to explore the victimization episodes in detail.

Findings

The analysis indicates a set of common manifestations framed by bullies in academia to create a favorable environment for bullying. These manifestations often play out in a sequence. Initially, the targets are overloaded with work to portray the victims as incapable and less competent. Then, the bullies lodge many formal complaints with the help of their supporters. Finally, they create an environment of silence by threatening them for their responses against bullying.

Originality/value

This paper is supported by previous research in this area and progresses by exploring the experiences of the victims in academics to find a common sequence in the mistreatment they suffer. The study concludes by showing unexplored areas in research on workplace bullying in the academic sector and provides a foundation for further research.

Details

Journal of Aggression, Conflict and Peace Research, vol. 12 no. 4
Type: Research Article
ISSN: 1759-6599

Keywords

Book part
Publication date: 30 November 2020

Shruti Arora and Anukrati Sharma

India is the place of many religions, customs and traditions. Religious events are regularly an exceptional tourist opportunity, and there are several religious events that take…

Abstract

India is the place of many religions, customs and traditions. Religious events are regularly an exceptional tourist opportunity, and there are several religious events that take place in India throughout the year. These events not only focus on the importance of people engaging in religious events and having spiritual experience but also act as a promotional opportunity for any country. With changing times, these religious places have become a site for tourism; relatively a mere pilgrimage and digital marketing is especially useful in promoting these events and places to new potential attendees as well. Therefore, this research stresses upon the small- and medium-sized religious events that take place in various regions of India and the importance of digital marketing in sustaining and promoting the event tourism.

Details

The Emerald Handbook of ICT in Tourism and Hospitality
Type: Book
ISBN: 978-1-83982-689-4

Keywords

Book part
Publication date: 2 August 2023

Shampa Roy

While popular genre fictions like detective novels are often centred around formulaic plots and stereotypical characters, they also undergo several exciting changes when adapted…

Abstract

While popular genre fictions like detective novels are often centred around formulaic plots and stereotypical characters, they also undergo several exciting changes when adapted in a diverse array of cultural and linguistic contexts. My chapter examines the first female detective of a Bangla crime writing series, Detective (Goyenda) Krishna as a figure that challenges patriarchal stereotypes related to violent women and dismantles the illusory neatness of binaries associated with ‘good’ and ‘bad’ femininity. The gun-toting, vengeance-seeking literary detective is also examined as mediating shifts and transitions in gendered practices and norms in Bengal – its socio-political as well as literary contexts – as it negotiated ideas of decoloniality from the first decade of the twentieth century and emerged as part of a new, partitioned nation in 1947. She is seen as a creative response to the changes related to gender that had been gradually taking shape in colonised Bengal and as articulating radically re-imagined possibilities and opportunities related to female subjectivities in a newly decolonised nation.

Details

The Emerald International Handbook of Feminist Perspectives on Women’s Acts of Violence
Type: Book
ISBN: 978-1-80382-255-6

Keywords

Book part
Publication date: 16 August 2023

Debasish Batabyal, Nilanjan Ray, Sudin Bag and Kaustav Nag

India is the birthplace of four major religions which are Hinduism, Jainism, Buddhism, and Sikhism. It is a country where people of all religions live in peace and harmony. Many…

Abstract

India is the birthplace of four major religions which are Hinduism, Jainism, Buddhism, and Sikhism. It is a country where people of all religions live in peace and harmony. Many tourists experience different forms of harassment during their pilgrimage journey, for example, fleecing, extortion of money, harassment by beggars, persistence by vendors and priests, fraud, sexual harassment, and other unacceptable behaviors. In order to appreciate the extent of harassment encountered by tourists, an in-depth study was conducted on the reviews provided by tourists on TripAdvisor's (Indian) website. This study characterizes harassments through ethnographic research approach of published reviews. A total of 260 reviews of 28 top Hindu temples are considered for all the states and union territories where the top Hindu pilgrim centers are located, (excluding Nagaland) according to TripAdvisor. The concerned reviews are categorized and further investigated through a primary data collection in proportion with the reviews received in respective temple sites in the study. through structural equation modeling (SEM). Important factors have been identified for future policy issues and recommendations in these most crowded places with unique mass tourism practices.

Article
Publication date: 10 August 2015

Sanjay Sharma and Savita Sharma

– The purpose of this paper is to explore fairs and festivals organized in the city; reasons to celebrate; and their economic impact on local people, vendors and visitors.

Abstract

Purpose

The purpose of this paper is to explore fairs and festivals organized in the city; reasons to celebrate; and their economic impact on local people, vendors and visitors.

Design/methodology/approach

Secondary data were collected through local library, Web sites, books and other publications. Local residents, visitors and vendors were interviewed through semi-structured questionnaire and personal interviews.

Findings

The events organized are not only an expression of the religious, social and cultural urges of the local population but also help to preserve traditions and folk culture of the region. It brings suppliers and vendors from nearby villages and cities together, resulting in significant economic well-being of the community and self.

Research limitations/implications

Traveling distance to the destination, understanding of the questionnaire by the audience and getting data to analyze the economic impact of such events at a higher level are some of the limitations. Further research is required on the economic impact of regional events on state revenue, and potential areas of study may include traditional sustainable practices and the economic impact and development of an economic framework, keeping regional fairs and festivals as the center of the study.

Practical implications

The research highlights the challenges for the organizers, scope of improvement and ways to popularize regional culture and cuisine. Vendors and visitors find it difficult to reach the event but are optimistic about the development. It also acts as a promotional tool to popularize Pithoragarh as a tourist destination.

Originality/value

The paper helps to project Pithoragarh as a potential tourist destination known for its fairs and festivals. It focuses on the economic impact of the stakeholders and it helps visitors to acknowledge traditions and cuisine.

Details

Worldwide Hospitality and Tourism Themes, vol. 7 no. 4
Type: Research Article
ISSN: 1755-4217

Keywords

Article
Publication date: 6 September 2021

Suchandra Bardhan and Souporni Paul

The paper introduces a lesser-known cultural landscape along the sacred Bhagirathi-Hooghly river in the Indian city of Kolkata, with particular reference to its built and natural…

168

Abstract

Purpose

The paper introduces a lesser-known cultural landscape along the sacred Bhagirathi-Hooghly river in the Indian city of Kolkata, with particular reference to its built and natural heritage. The narratives cover the cultural and ecological qualities of the unique “ghat-scape” (riverfront pavilions with steps descending into the river) and their contemporary urban challenges. It also explores the suitability of the Historic Cultural Landscape (HCL) tools, or their adapted versions, in managing this exceptional landscape.

Design/methodology/approach

The paper is structured under six discrete sections covering the inventory and assessment, interpretation and evaluation and possible roadmap for the ecological restoration of the riverfront cultural landscape. Primary and secondary studies were conducted to understand the related challenges and opportunities. The authors then examined the application of the HCL tools based on a conceptual framework and identified the alternative approaches suitable for its restoration. Finally, a successfully restored ghat environ is taken as a model and reviewed against the most potent approach in addressing the eco-cultural criticalities.

Findings

The paper argues in favour of a paradigm shift from riverfront “development” to riverfront “restoration” with particular emphasis on the ghat-architecture. Three eco-cultural restoration alternatives were derived out of the HCL principles. A practical case study found that a community-led approach positively influences restorative actions, cultural heritage management and long-term sustainability.

Originality/value

The HCL tools comprising planning, regulatory systems, financial designs and community engagement have been explored for the first time in the context of the unique riverfront “ghatscape” of Kolkata. An under-discussed topic, it has been brought to the centre stage to gain new insights into the Indian cultural landscape heritage. An HCL-based new approach in their management came forth through a review of a successful case study.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. 13 no. 2
Type: Research Article
ISSN: 2044-1266

Keywords

Article
Publication date: 23 August 2022

T.K. Gireesh Kumar

The purpose of this paper is to overview the current state of affairs of the Indian heritage treasures, which are being identified, restored, preserved and promoted by various…

Abstract

Purpose

The purpose of this paper is to overview the current state of affairs of the Indian heritage treasures, which are being identified, restored, preserved and promoted by various organizations at national and international levels with an emphasis on its documentation aspect. Lack of information about the heritage sites, structures and its significance, especially unprotected and unidentified, leads to its permanent loss. One of the prominent measures to safeguard from such irrevocable cultural deprivation is its documentation. Further, the study aims to examine the significant challenges associated with identifying unrevealed heritage assets of the country in the context of its preservation, documentation and promotion. As a suggestive measure, the study aims to propose the need for developing a comprehensive cultural heritage register assisted with technological aids focusing on community participation in taking stock of the heritage items they possess and enable them to effectively document.

Design/methodology/approach

The present study extracts the cultural heritage data available with the UNESCO belongs to Indian heritage assets inscribed in its World Heritage portal. The collected data has been analyzed and interpreted to overview the country's recognition at the global level. The data collected from the official portal is further explored and customized to have a lucid account. The details about the organizations and institutions working on heritage conservation and preservation activities in India are also collected. A review of published literature on the related areas has also been performed to identify the issues and challenges associated with the documentation of heritage assets to support this study. The study also included the researcher’s experience in working with cultural heritage documentation.

Findings

India holds a substantial quantity of cultural as well as natural heritage items. However, an exhaustive effort to document them at the national level is not being accomplished to its full potential. Many of the assets, inheritances or sites of cultural importance have not been fully identified, preserved or documented; hence, it is unrecalled forever once lost. Some organizations and individuals working on cultural heritage lack clarity in its function and do not follow any common standards in its documentation. For any conservation activity, documentation is prime, and the local community's support is also essential. Means of international collaboration for managing and promoting the heritage are required to be encouraged. Findings of the study demand the need for utilizing digital technologies to assist the documentation process. It emphasizes the requirement of having a web-based single window online gateway where an individual or community can dispense the knowledge and resources they possess hence contributing to heritage conservation, preservation and sustainability.

Research limitations/implications

The study limited to Indian scenario and the data on the heritage sites are collected from UNESCO's World Heritage portal. Only the documentation and promotional aspects of the cultural heritage are discussed. There are many lesser-known and unprotected cultural heritage in different parts of the country with artistic value. The unique characteristics that have not been recorded anywhere are to be documented systematically to reduce the frequency and severity of losses. The implication of the study highlights the present scenario of cultural heritage documentation in India and the need for a comprehensive heritage information gateway supported with a register facility to precisely document and retrieve.

Practical implications

Aspects of culture which are inherited from the past to the present are to be preserved for future generations. Digital archives of cultural heritage and the use of digital tools to document them are effective mechanisms to protect and store the data on endangered heritage items. For any such conservation effort, documentation is its first step. Developing and facilitating access to an exclusive database of cultural heritage at risk boast its sustainability and can be enriched by the involvement of local communities. Public access to such a database would greatly support administrators, tourist departments, culture departments, development administration and conservation activists to gather the details of unprotected heritage items of the country, its present condition, risk of damage, etc. which further helps in its preservation, conservation, sustainability and promotion in a constructive manner.

Originality/value

To the authors' best knowledge, no such single and comprehensive mechanism in the country allow the individuals to contribute to the inventory list holding information about the identified, unprotected and unidentified heritage assets which are having a risk of damage, threat, decay, vulnerable, neglect, lack of use or inappropriate maintenance and development. Developing such a system with technological and data infrastructure helps to pool all the cultural heritage resources under one umbrella. It imparts the value and significance of protecting and promoting heritage inheritances and a safe haven of them from the risk of its chronic loss. The system can also support all the activities related to heritage protection and bring the local community to timely support and initiate such heritage conservation activities.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2044-1266

Keywords

Open Access
Article
Publication date: 28 February 2024

Souresh Cornet, Saswat Barpanda, Marc-Antoine Diego Guidi and P.K. Viswanathan

This study aims at understanding how higher education institutions (HEIs) can contribute to sustainable development, by designing their programmes for bringing about a…

Abstract

Purpose

This study aims at understanding how higher education institutions (HEIs) can contribute to sustainable development, by designing their programmes for bringing about a transformative impact on communities and students, and also to examine what alternative pedagogical approaches could be used for that. In the past decades, HEIs have increasingly created social innovation (SI) programmes, as a way to achieve United Nations Sustainable Development Goals. These community-oriented and field-based programmes are difficult to ally with conventional classroom education. This study explores how these programmes could integrate the participatory approach and what would be the benefits. It also investigates the effectiveness of the experiential learning approach for teaching sustainability.

Design/methodology/approach

A case study method is used to document SI projects initiated by an HEI programme in rural India.

Findings

It was found that the participatory approach contributes to empowering communities and also benefits the students in terms of academic, professional and personal growth. Empirical findings show that experiential learning is an efficient method to teach sustainability. Ultimately, both pedagogical approaches are found to be mutually beneficial.

Originality/value

This study fills a gap in the literature, by providing empirical evidence on how HEI can implement innovative educational strategies such as participatory approach and experiential learning in their programmes towards teaching sustainability. A conceptual model for HEI interested in developing similar programmes is also proposed. To the best of the authors’ knowledge, this study is one of the first studies focusing on the context of Indian HEI.

Details

International Journal of Sustainability in Higher Education, vol. 25 no. 9
Type: Research Article
ISSN: 1467-6370

Keywords

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