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Publication date: 2 February 2015

A.J. Sunija, S. Siva Ilango and K.P Vinod Kumar

This paper aims to focus on the evaluation of the electrical properties of bio-based polyurethane material derived from cashew nut husk tannin and also the effect of temperature…

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Abstract

Purpose

This paper aims to focus on the evaluation of the electrical properties of bio-based polyurethane material derived from cashew nut husk tannin and also the effect of temperature and frequency on the dielectric values and alternate current (AC) conductivity.

Design/methodology/approach

Bio-based polyurethane is prepared from cashew nut husk tannin as polyol, their dielectric constant and dielectric loss factor are measured using an inductance capacitance resistance (LCR) metre, and the AC conductivity is determined using dielectric constant and loss values.

Findings

The dielectric constant values are high, and the values decrease with an increase in frequency but increase with an increase in temperature. The AC conductivity values are low; hence, the material can be categorized as insulators or semi-conductors. Because the polyurethanes have a good dielectric value and are cost-effective, as they are derived from renewable biomaterial waste, they have promising applications for the future.

Research limitations/implications

The experiment is carried out up to the frequency of 200 KHz because of the limitation in the instrument. But for the institute of printed circuits (IPC) and other specifications, the values of dielectric loss and dielectric constant will be generally coated for 1 MHz.

Practical implications

The high dielectric constant and loss values show that the polyurethane can be opted for use as capacitors in electronic devices, and the values are comparable to the requirements of IPC4101A/24IPC; hence, they are suitable for the application as printed circuit board (PCB) laminate.

Social implications

The use of biomaterial waste in the production of polyurethane will bring down the dependence of polyurethane industry on fossil fuel reserve, reduce carbon dioxide foot print and reduce the cost of production.

Originality/value

The motivation of the work was its ecological aspect and also aims on the use of an alternative bio-based material in the PCB industry.

Details

Circuit World, vol. 41 no. 1
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 2 November 2012

Aruna Kumar Panda

The aim of this paper is to extend a conceptual understanding of business process outsourcing (BPO) and its prevailing practices in the background of the post‐liberalized economic…

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Abstract

Purpose

The aim of this paper is to extend a conceptual understanding of business process outsourcing (BPO) and its prevailing practices in the background of the post‐liberalized economic scenario of India. Efforts have also been made to discuss the major work verticals of Indian ITES‐BPO industry, which further reveals the fact of its domain expertise and in‐time delivery of services in a pre‐determined standard with least possible cost that has made India a BPO hub. The later part of the study deals with an empirical SWOT‐analysis that highlights the key factors that have significant bearing to the very flourishment of this sunshine industry.

Design/methodology/approach

The data collected for the analysis are secondary in nature and include various journals, periodicals, survey reports and on‐line business reports/news. The techniques like trend analysis and SWOT analysis in particular have been implemented for the purpose of study.

Findings

The paper found that in addition to the growth of traditional industries, patronization of this emerging sector is also a high necessity, looking at its socio‐economic contribution to the society on one hand and considerable amount of employment creation and income generation capabilities for the bright mass of the country that restrict “brain drain”, on the other hand.

Originality/value

The paper describes, analyses and critiques the outsourcing industry in India with reference to a core theory base. It is expected to be helpful in stimulating the analytical mind of the researchers and industry practitioner of the area for scientific decision making and furthering the research on this particular aspect of business.

Details

Business Process Management Journal, vol. 18 no. 6
Type: Research Article
ISSN: 1463-7154

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