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Article
Publication date: 3 July 2017

Yusmarnita Yusop, Mohd. Shakir Md. Saat, Siti Huzaimah Husin, Sing Kiong Nguang and Imran Hindustan

This paper aims to present a new wireless power transfer technique using capacitive coupling. The capacitive power transfer (CPT) system has been introduced as an…

Abstract

Purpose

This paper aims to present a new wireless power transfer technique using capacitive coupling. The capacitive power transfer (CPT) system has been introduced as an attractive alternative to the traditional inductive coupling method. The CPT offers benefits such as simple topology, fewer components, better electromagnetic interference (EMI) performance and robustness to surrounding metallic elements.

Design/methodology/approach

A class-E inverter together with and without inductor capacitor (LC) matching circuit has been utilised in this work because of its ability to perform the DC-to-AC inversion efficiently with significant reduction in switching losses. The validity of the proposed concept has been verified by conducting a laboratory experiment of the CPT system.

Findings

The performances for both systems are analysed and evaluated. A 9.7 W output power is generated through a combined interface [printed circuit board (PCB) plate] capacitance of 2.82 nF at an operating frequency of 1 MHz, with 97 per cent efficiency for 0.25 mm coupling gap distance.

Originality value

An efficient CPT system with class-E LC matching topology is proposed in this paper. With this topology, the zero-voltage switching can be achieved even if the load is different by properly designing the LC matching transformation circuit.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 36 no. 4
Type: Research Article
ISSN: 0332-1649

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Book part
Publication date: 15 February 2021

P. M. Kamath

Is India backing out from its commitment to No First Use (NFU) of nuclear weapons (NWs)? It was a highly debated issue in newspapers and electronic media in August 2019…

Abstract

Is India backing out from its commitment to No First Use (NFU) of nuclear weapons (NWs)? It was a highly debated issue in newspapers and electronic media in August 2019. What triggered this question? In this chapter, I intend to, after explaining significance of NWs in Indian defence strategy and nuclear doctrine that includes Indian commitment to NFU of NWs, answer the two questions raised in reverse order briefly.

Details

New Frontiers in Conflict Management and Peace Economics: With a Focus on Human Security
Type: Book
ISBN: 978-1-83982-426-5

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Book part
Publication date: 19 November 2018

Rukmini Pande

This chapter will consider the workings of microcelebrity in the context of an evolving Indian cyber public. In the contemporary moment, large-scale battles for control…

Abstract

This chapter will consider the workings of microcelebrity in the context of an evolving Indian cyber public. In the contemporary moment, large-scale battles for control over the world’s youngest and increasingly digitally active demographic are in full swing – both by corporations like Facebook through efforts like Free Basics, as well as by ideologues who wish to mold the “idea of India” in certain ways. While digital spaces are often framed as liberating, there are also extremely strong conservative forces that are well established. It is within this context that I would like to examine the recent growth of the Indian online comedic scene whose popularity has increased by leaps and bounds. My particular focus will be the comedy collective of AIB (All India Backchod), who are most prominent on Youtube. This collective has garnered significant popularity through their deployment of viral comedic videos riffing off on various aspects of Indian society and have also made socially aware videos around hot button issues like gay rights and women’s rights. I would like to examine their treatment of gender and sexuality particularly in the context of it being made up primarily of straight men and how that has affected their engagement both with the content of their videos, as well as their ability to leverage their online visibility. I will be using ideas of postcolonial cyberspace as theorized by Nishant Shah (2015) as well as theorists of microcelebrity and the use of humor such as Theresa Senft (2013).

Details

Microcelebrity Around the Globe
Type: Book
ISBN: 978-1-78756-749-8

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Article
Publication date: 30 April 2019

Hariram Venkatesan, Godwin John J. and Seralathan Sivamani

Vast areas have been studied toward combustion and emission analysis in vegetable oil methyl esters and quite a few in algal oil biodiesel. To analyze the better alternate…

Abstract

Purpose

Vast areas have been studied toward combustion and emission analysis in vegetable oil methyl esters and quite a few in algal oil biodiesel. To analyze the better alternate source for diesel engine, this study aims to investigate the combustion behavior and emission characteristics between cottonseed biodiesel and algal oil biodiesel on comparison with mineral diesel in a compression ignition engine.

Design/methodology/approach

The fuel properties like density, kinematic viscosity, calorific value and Cetane number have met the biodiesel standards for both algal and cottonseed biodiesel. At rated power, engine was operated on all three test fuels, where combustion analysis describing in-cylinder pressure, peak pressure, rate of pressure rise and rate of heat release and emission characteristics including hydrocarbon (HC), carbon monoxide (CO), oxides of nitrogen (NOx) and smoke for both biodiesel comparing mineral diesel.

Findings

Algal and cottonseed biodiesel showed up to 2-3°CA delayed start of combustion comparing mineral diesel curve. The in-cylinder pressure of algal biodiesel was found to be 68 bar, whereas cottonseed biodiesel exhibited 65 bar at full load condition. Similarly, the rate of pressure rise and rate of heat release of algal biodiesel depicted 7.9 and 10.7 per cent rise than cottonseed biodiesel, respectively. As the load increased, ignition delay showed decreasing trend, while combustion duration showed an increasing trend. HC, CO and smoke emissions were seen to be lower than mineral diesel with noticeable increase in NOx emission.

Originality/value

In this present investigation, biodiesel from Stoechospermum Marginatum, a marine marco algae, was used to fuel the compression ignition engine. Its combustion behavior and emission characteristics are compared with cottonseed biodiesel, a vegetable oil-based biodiesel having similar physio-chemical characteristics to understand the suitability of algal biodiesel in compression ignition engine. This study involves the assessment of straight biodiesel from macro algae and cottonseed oil on standard operating conditions.

Details

World Journal of Engineering, vol. 16 no. 2
Type: Research Article
ISSN: 1708-5284

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Article
Publication date: 6 August 2019

Javed Siddiqui, Sofia Yasmin and Christopher Humphrey

The purpose of this paper is to analyse the shifting nature of governance reforms, both at global and national levels, in the increasingly commercialised game of cricket…

Abstract

Purpose

The purpose of this paper is to analyse the shifting nature of governance reforms, both at global and national levels, in the increasingly commercialised game of cricket. The authors explore the inter-relationship and linkages between governance and commercialism, and in the process, question the contemporary reliance placed on governance as a generic counter-commercialist force and accountability aid.

Design/methodology/approach

The analysis is based on a comprehensive analysis of cricketing archives, newspapers and online media. The authors specifically utilise a range of review reports, governance and accounting information from annual reports and websites of the International Cricket Council (ICC) as well as different national cricket governing bodies (NCBs).

Findings

The paper vividly demonstrates the importance of recognising the specific significance of different cultural traditions and modes of organising – and not presuming a particular form of impact. The findings highlight that the adoption of a dominant market logic by cricket administrators has resulted in a shift in the balance of power in favour of non-western nations. India has emerged as the clear leader and driving force shaping the way cricket is globally governed. The consequences have been profound but not in terms of delivering, enhanced standards of transparency and accountability. Drawing on institutional theory, the paper argues that the scale of the Board of Cricket Control of India’s financial and operational control over the ICC has not only led to an increasingly commercialised game but engendered divergent and highly questionable standards of governance at the level of NCBs.

Originality/value

Unlike other global games, cricket has an imperialistic root, and has gone through the process of globalisation in relatively recent times. Also, the commercialisation of cricket has resulted in the global economic and power base shifting from the West to the East, giving us the opportunity to study the dynamics between commercialisation and governance in a quite different globalisation context that allows an assessment to be made of the culturally contingent nature of governance as a substantive organising force.

Details

Accounting, Auditing & Accountability Journal, vol. 32 no. 7
Type: Research Article
ISSN: 0951-3574

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Article
Publication date: 23 November 2012

Mohammad Omar Farooq

The purpose of this paper is to provide a critical appraisal of the theme of zulm (injustice/exploitation) in light of the Islamic finance literature and the general…

Abstract

Purpose

The purpose of this paper is to provide a critical appraisal of the theme of zulm (injustice/exploitation) in light of the Islamic finance literature and the general attitude and approach of the Islamic finance industry and its advocates.

Design/methodology/approach

Based on an expanding theoretical and empirical knowledge base about Islamic finance and banking movement, and the emerging understanding about the role of profit and corporate behavior, a critical analysis of the role of riba, interest and profit in widespread injustice and exploitation is presented.

Findings

On the basis of the behavior of the Islamic finance industry, it seems that the industry's current practices are either neutral to the issue of injustice/exploitation or mirrors the tendencies of the conventional finance. Furthermore, when comparing the exploitative role of interest and profit, the latter seems to be more consequential than generally understood and acknowledged.

Research limitations/implications

Islamic economics/finance literature should have more empirical research in identifying and understanding the nature of exploitation in the contemporary world and in how the current practices or tendencies are minimizing or abetting the challenge of exploitation.

Practical implications

The larger goal of the Islamic finance and banking movement should be to be in harmony with the maqasid of Islam to minimize zulm (injustice/exploitation) in the society.

Social implications

The larger goal of the Islamic finance and banking movement should be to be in harmony with the maqasid of Islam to minimize zulm (injustice/exploitation) in the society.

Originality/value

While the literature of Islamic economics and finance is rather robust, this might be the first work that critically examines the riba‐interest reductionism, especially to focus on its implication for attention of the industry being away from exploitation in general and the relationship between profit and exploitation in particular.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 5 no. 4
Type: Research Article
ISSN: 1753-8394

Keywords

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