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Article
Publication date: 1 November 2011

O.L. Shanmugasundaram and R.V. Mahendra Gowda

Absorbent disposable products, such as diapers and sanitary napkins, are mostly one-time use items and designed to absorb and retain body fluids and solid waste. The…

Abstract

Absorbent disposable products, such as diapers and sanitary napkins, are mostly one-time use items and designed to absorb and retain body fluids and solid waste. The present research work deals with the development and characterization of baby diapers made from four different fibrous compositions namely, pure bamboo, pure cotton, bamboo/cotton (70/30) and bamboo/cotton (50/50). Antibacterial activity tests have been carried out on baby diapers against S.aureus and E.coli. The strongest antibacterial activity in terms of reduction of the organism is found in diapers produced from pure bamboo fibre and the weakest antibacterial activity is found in cotton diapers. Superabsorbent polymer (SAP), namely, sodium polyacrylate is incorporated into the diapers to enhance their absorption capacity. The diapers are subjected to tests such as absorption capacity, liquid strike-through, acquisition time under load and diaper rewet under load to study their performance. Upon an analysis of the results, it is found that the performance of diapers produced from a bamboo/cotton (70/30) fibre blend is superior in comparison to the other ones.

Details

Research Journal of Textile and Apparel, vol. 15 no. 4
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 1 August 2016

Govindan Karthikeyan, Govind Nalankilli, O L Shanmugasundaram and Chidambaram Prakash

– The purpose of this paper is to present the thermal comfort properties of single jersey knitted fabric structures made from bamboo, tencel and bamboo-tencel blended yarns.

Abstract

Purpose

The purpose of this paper is to present the thermal comfort properties of single jersey knitted fabric structures made from bamboo, tencel and bamboo-tencel blended yarns.

Design/methodology/approach

Bamboo, tencel fibre and blends of the two fibres were spun into yarns of identical linear density (30s Ne). Each of the blended yarns so produced was converted to single jersey knitted fabrics with loose, medium and tight structures.

Findings

An increase in tencel fibre in the fabric had led to a reduction in fabric thickness and GSM. Air permeability and water-vapour permeability also increased with increase in tencel fibre content. The anticipated increase in air permeability and relative water vapour permeability with increase in stitch length was observed. The thermal conductivity of the fabrics was generally found to increase with increase in the proportion of bamboo.

Research limitations/implications

It is clear from the foregoing that, although a considerable amount of work has been done on bamboo blends and their properties, still there are many gaps existing in the literature, in particular, on thermal comfort, moisture management and spreading characteristics. Thus the manuscript addresses these issues and provides valuable information on the comfort characteristics of the blended fabrics for the first time. In the evolution of this manuscript, it became apparent that a considerable amount of work was needed to fill up the gaps existing in the literature and hence this work which deals with an investigation of the blend yarn properties and comfort properties of knitted fabrics was taken up.

Originality/value

This research work is focused on the thermal comfort parameters of knitted fabrics made from 100 per cent tencel yarn, 100 per cent bamboo yarn and tencel/bamboo blended yarns of different blend ratios.

Details

International Journal of Clothing Science and Technology, vol. 28 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 12 January 2018

M. Janarthanan and M. Senthil Kumar

Medical textiles is a vibrant emerging field in the area of technical textiles and its category is based on its performance and biofunctional properties for hygienic and…

Abstract

Purpose

Medical textiles is a vibrant emerging field in the area of technical textiles and its category is based on its performance and biofunctional properties for hygienic and health care products. Biodegradable fabrics are widely used for medical textiles in recent years. Seaweeds provide a wide range of therapeutic possibilities for human beings both internally and externally due to the presence of bioactive compounds. The paper aims to discuss these issues.

Design/methodology/approach

This present study investigates the development of bioactive gauze fabric from Chaetomorpha linum seaweed/cotton blended fibres and also analysed the characteristics of Chaetomorpha linum seaweed/cotton blended gauze fabric and 100 per cent cotton gauze fabric. The effect of fibres on physical properties of fabric such as tensile strength, air permeability, wickability, water drop test and colour fastness properties were analysed. The antibacterial properties and antioxidant activity were assessed by DPPH radical scavenging, AATCC 100 and EN ISO 20645 test methods.

Findings

The experimental results indicate that the maximum antioxidant activity of 103.28±1.23 per cent inhibition was achieved at minimum concentration (500 µg/ml) of the blended fabric extract, and maximum antibacterial reduction of 95 per cent and zone of inhibition of about 26 mm were achieved in a blended fabric. The tensile strength, percentage of elongation and air permeability were more or less the same in both gauze fabrics. It is also found that Chaetomorpha linum seaweed/cotton blended gauze fabric exhibit better wickability and water absorbency properties than 100 per cent cotton gauze fabric. The colour fastness properties to washing and rubbing showed excellent results in the blended gauze fabric, and it is used for making wound dressing materials.

Originality/value

This bioactive gauze fabric was used for non-implantable materials such as wound healing, face mask, surgical gowns and hygienic textiles in recent years.

Details

International Journal of Clothing Science and Technology, vol. 30 no. 1
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 29 June 2018

Desalegn Atalie, Addisu Ferede Tesema and Gideon K. Rotich

Fabrics’ thermal properties greatly influence human comfort during wear. For this reason, fabrics with optimum thermal properties need to be developed. This paper aims to…

Abstract

Purpose

Fabrics’ thermal properties greatly influence human comfort during wear. For this reason, fabrics with optimum thermal properties need to be developed. This paper aims to investigate the effect of weft yarn twist levels on thermal and surface properties of 100 per cent cotton woven fabrics.

Design/methodology/approach

Five types of plain woven cotton fabrics were manufactured using weft yarns with 900, 905, 910, 915 and 920 twists/meter (Tpm). The other parameters of the samples as count, thread density and fabric structures were kept constant. Fabric thermal properties were evaluated by measuring its thermal conductivity, thermal resistance, actual insulation, water permeability, air permeability and wicking ability. The fabric compression and surface properties were also evaluated because they contribute to the overall clothing comfort.

Findings

The results showed that actual insulation and thermal resistance property decreased with an increase in twists/meter of the weft yarn. However, thermal conductivity does not significantly change while fabric compression reduced with an increase in twist as the surface roughness increased.

Originality/value

Comfort is a fundamental requirement in human daily existence, and it is greatly influenced by clothing, which comes in close contact with the human skin. Fabrics’ thermal properties greatly influence human comfort during wear. For this reason, fabrics with optimum thermal properties need to be developed.

Details

Research Journal of Textile and Apparel, vol. 22 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 22 September 2021

A. Prakash, A. Shyam Joseph, R. Shanmugasundaram and C.S. Ravichandran

This paper aims to propose a machine learning approach-based power theft detection using Garra Rufa Fish (GRF) optimization. Here, the analyzing of power theft is an…

Abstract

Purpose

This paper aims to propose a machine learning approach-based power theft detection using Garra Rufa Fish (GRF) optimization. Here, the analyzing of power theft is an important part to reduce the financial loss and protect the electricity from fraudulent users.

Design/methodology/approach

In this section, a new method is implemented to reduce the power theft in transmission lines and utility grids. The detection of power theft using smart meter with reliable manner can be achieved by the help of GRF algorithm.

Findings

The loss of power due to non-technical loss is small by using this proposed algorithm. It provides some benefits like increased predicting capacity, less complexity, high speed and high reliable output. The result is analyzed using MATLAB/Simulink platform. The result is compared with an existing method. According to the comparison result, the proposed method provides the good performance than existing method.

Originality/value

The proposed method gives good results of comparison than those of the other techniques and has an ability to overcome the associated problems.

Details

Journal of Engineering, Design and Technology , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 1 June 2006

Veronica Obatolu and Sidi M. Osho

The study aims to investigate the potential of green immature soybean among Nigeria soybean varieties as human food.

662

Abstract

Purpose

The study aims to investigate the potential of green immature soybean among Nigeria soybean varieties as human food.

Design/methodology/approach

Five Nigeria soybean varieties were harvested at 90 days old. The fresh green immature soybean seed were evaluated for chemical composition, physical and sensory characteristics. The physical characteristics looked into seed size (breadth and length), weight, seed colour, hull thickness and percentage of hydration. The chemical composition was compared to mature soybean seeds while the sensory attributes were compared to fresh green peas.

Findings

The raw mature soybean (RMS) was significantly higher and lower in chemical composition and anti‐nutritional factors respectively. The highest moisture content ranges from 62.8 per cent in TGX 1019‐2EB to 65.4 per cent in TGX 1485‐1D. The protein content (15.3 per cent) was highest in TGX1485‐1D and lowest value in TGX1448‐2E. The level of tannin was significantly higher in TGX1448‐2E and 923‐2E while trypsin inhibitor was significantly (p<0.05) higher in TGX1440‐1E and TGX1485‐1D. TGX1485‐1D had superior physical characteristics to other immature varieties with significant (p<0.05) higher value for breadth, length and height. The hull thickness of the seeds was within 0.01 to 0.05 and the percentage of hydration ranges within 5.5 to 6.8 per cent. All varieties had a green colour for the seed coat. Overall sensory acceptability of TGX TGX1440‐1E, 1485‐1D and 1019‐2EB compared favourably well with green peas used as control for sensory evaluation.

Originality/value

This study could help to identify the potential of some Nigerian soybean cultivars for production for use as a source of vegetable in the diet and also provided valuable information for further improvement of soybean for food uses.

Details

British Food Journal, vol. 108 no. 6
Type: Research Article
ISSN: 0007-070X

Keywords

Abstract

Details

Investment Behaviour
Type: Book
ISBN: 978-1-78756-280-6

Article
Publication date: 10 August 2018

Azita Asayesh, Mehraneh Talaei and Mohammad Maroufi

Fabric structural parameters play an important role on the thermal comfort of clothing. The purpose of this paper is to investigate the effect of weave pattern and also…

Abstract

Purpose

Fabric structural parameters play an important role on the thermal comfort of clothing. The purpose of this paper is to investigate the effect of weave pattern and also the length of warp float in each weave pattern on the thermal properties of woven fabrics.

Design/methodology/approach

Cotton woven fabrics with 23 different weave patterns were produced with identical linear densities of warp and weft yarns as well as constant warp and weft nominal densities. Thereafter, their thermal properties were studied.

Findings

Statistical analysis demonstrated that the weave pattern significantly influences on the thermal properties of woven fabrics. Plain fabric exhibited the lowest thermal resistance and the highest thermal conductivity, and hopsack 2/2(4) weave fabric demonstrated the highest thermal resistance and the lowest thermal conductivity. Moreover, except hopsack (4) weave fabric, in all weave patterns, the length of warp float had a significant effect on the thermal characteristics of the fabrics, as increasing the warp float led to increase in the thermal resistance of the fabrics.

Originality/value

Weave pattern as one of the structural parameters of the fabric has a determinant role on the thermal properties of fabric and subsequently, the comfort of clothing produced from it. Owing to the lack of investigation in this area, this research considers the effect of weave pattern and the length of warp float in each weave pattern on the thermal properties of woven fabrics.

Details

International Journal of Clothing Science and Technology, vol. 30 no. 4
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 14 April 2014

Chang-Sup Park and Sungchae Lim

The paper aims to propose an effective method to process keyword-based queries over graph-structured databases which are widely used in various applications such as XML…

Abstract

Purpose

The paper aims to propose an effective method to process keyword-based queries over graph-structured databases which are widely used in various applications such as XML, semantic web, and social network services. To satisfy users' information need, it proposes an extended answer structure for keyword queries, inverted list indexes on keywords and nodes, and query processing algorithms exploiting the inverted lists. The study aims to provide more effective and relevant answers to a given query than the previous approaches in an efficient way.

Design/methodology/approach

A new relevance measure for nodes to a given keyword query is defined in the paper and according to the relevance metric, a new answer tree structure is proposed which has no constraint on the number of keyword nodes chosen for each query keyword. For efficient query processing, an inverted list-style index is suggested which pre-computes connectivity and relevance information on the nodes in the graph. Then, a query processing algorithm based on the pre-constructed inverted lists is designed, which aggregates list entries for each graph node relevant to given keywords and identifies top-k root nodes of answer trees most relevant to the given query. The basic search method is also enhanced by using extend inverted lists which store additional relevance information of the related entries in the lists in order to estimate the relevance score of a node more closely and to find top-k answers more efficiently.

Findings

Experiments with real datasets and various test queries were conducted for evaluating effectiveness and performance of the proposed methods in comparison with one of the previous approaches. The experimental results show that the proposed methods with an extended answer structure produce more effective top-k results than the compared previous method for most of the queries, especially for those with OR semantics. An extended inverted list and enhanced search algorithm are shown to achieve much improvement on the execution performance compared to the basic search method.

Originality/value

This paper proposes a new extended answer structure and query processing scheme for keyword queries on graph databases which can satisfy the users' information need represented by a keyword set having various semantics.

Details

International Journal of Web Information Systems, vol. 10 no. 1
Type: Research Article
ISSN: 1744-0084

Keywords

Article
Publication date: 6 November 2019

Subramanian Shanmugasundaram

The purpose of this paper is to study the relationship between corporate governance practices and internationalization through foreign direct investments in the context of…

Abstract

Purpose

The purpose of this paper is to study the relationship between corporate governance practices and internationalization through foreign direct investments in the context of family-owned business groups in India.

Design/methodology/approach

The comparative case study method is used to understand the relationship between corporate governance practices and internationalization using four family-owned business groups in India.

Findings

The ownership concentration negatively influences the internationalization, while transparency has a positive association. Professionalization of management helps in internationalization. Overall, good corporate governance practices have a positive influence on group internationalization.

Research limitations/implications

This paper provides detailed discussions based on the case study research which would help the future research work on the relationship between corporate governance practices and internationalization.

Originality/value

The existing literature studies in this field in the context of emerging markets are inconclusive. Hence, this paper uses the case study method to understand the relationship better.

Details

Journal of Family Business Management, vol. 10 no. 1
Type: Research Article
ISSN: 2043-6238

Keywords

1 – 10 of 47