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Article
Publication date: 1 August 2012

Hebeish Ali, Mohamed Hashem, Nihal Shaker, Mohamed Ramadan, Bahiya El-Sadek and Marwa Abdel Hady

Cotton-based fabrics, namely loomstate cotton fabric, grey mercerized cotton fabric, loomstate cotton/polyester (50/50 and 35/65) blended fabric were bio-desized by α amylase…

Abstract

Cotton-based fabrics, namely loomstate cotton fabric, grey mercerized cotton fabric, loomstate cotton/polyester (50/50 and 35/65) blended fabric were bio-desized by α amylase enzymes and bio-scoured by alkaline pectinase enzymes. The obtained bio-scoured substrates were subject to bleaching with peracetic acid and proceeded for bio-polishing under a variety of conditions. Results show that the extent of bio-polishing depends on the conditions of the treatment. The loss in fabric weight exhibits values which are comparable at 50° and 60°C and substantially higher than those obtained at 40°C. Temperatures of bio-polishing, specifically 40° and 50°, decrease the whiteness index; higher temperature, i.e. 60 °C, does not cause further decrease in the whiteness index whereas the tensile strength decreases. The temperature has a positive effect on surface roughness particularly when bio-polishing is performed at 50°and 60 °C. It was also found that cellulase is more active in mercerized cotton than in either 100 % cotton or cotton/polyester blend. The scanning electron micrograph of fibers after the enzymatic treatment reveals smoothened faces. The ridges that are present in the untreated fiber samples are not found in the case of cellulase-treated fibers. Bio-polishing of cotton fabrics can offer unmatched results by optimizing the process conditions, which can be otherwise achieved with chemical finishes. Reasonably good results were obtained from all the cotton and cotton blend fabrics and show high flexibility and versatility of the treatment in the manufacturing process.

Details

Research Journal of Textile and Apparel, vol. 16 no. 3
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 24 February 2022

Marwa Al Khalidi, Sana'a Al-Rqaibat and Yasmein Okour

The purpose of this paper is to analyze the postgraduate disciplinary trends in architecture in Jordan. It highlights current research topics in master theses of architecture…

Abstract

Purpose

The purpose of this paper is to analyze the postgraduate disciplinary trends in architecture in Jordan. It highlights current research topics in master theses of architecture programs, to enhance the selection of postgraduate thesis topics that are more responsive and adaptive to the raised research demands of communities and the profession.

Design/methodology/approach

The paper analyzed 254 master's theses published from 2009 to 2019 in three Jordanian universities. The paper employed a descriptive and content analysis for theses' titles and abstracts.

Findings

The principal results identify unique geographical, temporal and disciplinary trends in the mapped theses. The findings illustrate an interest in disciplines of design studies, building technology, housing and community and urban design among postgraduate students. The findings also highlight a centralization of theses' number and geographical location within Amman governorate. Many theses also focused on residential spaces as a scale of analysis.

Practical implications

The proposed suggestions include collaborative efforts and practical mechanisms by higher education institutions, practitioners and decision-makers for advancing rigorous, diverse and relevant research topics in postgraduate theses.

Originality/value

The paper provides a comprehensive mapping of the topics of postgraduate theses in the field of architecture. It highlights how they have evolved or have been influenced by community needs. It also draws attention toward specific disciplines that have been the focus of major architectural programs in Jordan. Finally, it highlights the coexistence of interdisciplinarity within the field of architecture.

Details

Archnet-IJAR: International Journal of Architectural Research, vol. 16 no. 3
Type: Research Article
ISSN: 2631-6862

Keywords

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