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Durban, South Africa

The Durban University of Technology is a University of Technology in KwaZulu-Natal, South Africa. It was formed in 2002 by the merger of Technikon Natal and ML Sultan Technikon and was previously known as the Durban Institute of Technology. It has four campuses in Durban, and two in Pietermaritzburg. In 2005, around 20 000 students were enrolled. Wikipedia.

Bhagwan R.,Durban University of Technology
Journal of Social Work Practice

There is a paucity of scholarly work on Hindu spirituality in a social work context. For practitioners to be competent when working with Hindus, a deeper understanding of the beliefs and practices that underpin their faith and their use of ancient Indian healing practices when confronted with problems is critical. This paper journeys into Hindu sacred scriptures, prayer and worship rituals, astrology, ayurveda and meditation and explores their potential to create integrative synergies with conventional social work therapy. It also highlights the important role of the Guru in the fabric of Hindu healing and the importance of validating this together with the other realms of Hindu spirituality in practice. © 2012 Copyright GAPS. Source

Mohan T.P.,Durban University of Technology | Kanny K.,Durban University of Technology
Composites Part A: Applied Science and Manufacturing

This paper deals with the water mass uptake of nanoclay and sisal fibre reinforced polymer composites. Nanoclays at 1 wt.%, 3 wt.% and 5 wt.% were filled in sisal fibre reinforced epoxy polymer and placed in a water medium. The result shows a dramatic decrease in water mass uptake of nanoclay filled composites. The water transmission rate (WTR) for 5 wt.% nanoclay filled composites reduced by three times when compared to unfilled composites. Hence the role of nanoclay on reducing water uptake is studied and results are compared with microclay filled composites. Tensile, dynamic mechanical analysis (DMA) and wear studies were conducted for these composites before and after placing in the water medium. The properties decreased much for microclay filled and unfilled composites, however they improved significantly for nanoclay filled composites. © 2011 Elsevier Ltd. All rights reserved. Source

Kumar A.,Durban University of Technology | Singh S.,Durban University of Technology
Critical Reviews in Biotechnology

Current challenges and promises of white biotechnology encourage protein engineers to use a directed evolution approach to generate novel and useful biocatalysts for various sets of applications. Different methods of enzyme engineering have been used in the past in an attempt to produce enzymes with improved functions and properties. Recent advancement in the field of random mutagenesis, screening, selection and computational design increased the versatility and the rapid development of enzymes under strong selection pressure with directed evolution experiments. Techniques of directed evolution improve enzymes fitness without understanding them in great detail and clearly demonstrate its future role in adapting enzymes for use in industry. Despite significant advances to date regarding biocatalyst improvement, there still remains a need to improve mutagenesis strategies and development of easy screening and selection tools without significant human intervention. This review covers fundamental and major development of directed evolution techniques, and highlights the advances in mutagenesis, screening and selection methods with examples of enzymes developed by using these approaches. Several commonly used methods for creating molecular diversity with their advantages and disadvantages including some recently used strategies are also discussed. © 2013 Informa Healthcare USA, Inc. Source

Mohan T.P.,Durban University of Technology | Kanny K.,Durban University of Technology
Composites Part A: Applied Science and Manufacturing

In this study the chemical treatment of sisal fiber using the combined alkali (NaOH) and clay is discussed. The purpose of this fiber treatment is to improve the fiber-matrix compatibility, interface strength, mechanical, thermal and water barrier properties. The phase change due to chemical treatment of raw sisal fiber was examined by Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) methods. The result shows the presence of about 20 wt.% clays in NaOH-clay treated sisal fiber with 2.6× reduced water uptake and also with improved mechanical and thermal properties. Subsequently the treated and untreated fibers were reinforced in polypropylene (PP) matrix and the mechanical and thermal properties were examined. The result indicates that the fiber-matrix interface strength, adhesion, glass transition temperature and tensile properties of composites were improved in NaOH-clay treated fiber composites. © 2012 Elsevier Ltd. All rights reserved. Source

The density (d) and speed of sound (u) for the binary systems were measured at 298.15, 303.15, 308.15, and 313.15 K under atmospheric pressure. The binary systems contained the ionic liquid (IL): methyltrioctylammoniumbis(trifluoromethylsulfonyl)imide ([MOA] +[Tf2N].). The binary systems were ([MOA] +[Tf2N]. + ethyl acetate or ethanol). The apparent molar volume, Vφ, and the apparent molar isentropic compressibility, kφ, have been evaluated from the experimental density and speed of sound data, respectively. A Redlich.Mayer equation was fitted to the apparent molar volume and apparent molar isentropic compressibility data. The partial molar volume, V0 φ . , and partial molar isentropic compressibility, k0φ. , of the binary mixtures have also been calculated at each temperature. The partial molar volume indicates that the intermolecular interactions for (IL + ethanol) are stronger than for (IL + ethyl acetate) at all temperatures and V0φ . for both systems increases with an increase in temperature. The values of the infinite dilution apparent molar expansibility, E0φ. , decreases with an increase in temperature. The isentropic compressibilities, ks, increases with an increase in temperature for both binary systems. Positive k0φ. , for both binary systems can be attributed to the predominance of solvent intrinsic compressibility over the solute intrinsic effect. © 2013 Elsevier B.V. Source

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