http://hdl.handle.net/10204/921 Wed, 19 Jun 2013 11:33:09 GMT 2013-06-19T11:33:09Z http://hdl.handle.net/10204/6520 Title: Colour and camouflage: design issues in military clothing Authors: Baumbach, J Abstract: Camouflage, the art of going (as long as possible) undetected by an observer, has changed over the last decade to become a discipline with a more scientific and analytical foundation. Design of a camouflage system needs to consider the capabilities of the human as an observer (on both physiological and psychophysical levels.) Description: Copyright: Woodhead Publishing,Cambridge,UK Sun, 01 Jul 2012 00:00:00 GMT http://hdl.handle.net/10204/6520 2012-07-01T00:00:00Z http://hdl.handle.net/10204/6301 Title: Mechanical and thermal properties of water glass coated sisal fibre-reinforced polypropylene composite Authors: Phiri, G; Sadiku, ER; Khoathane, MC Abstract: In recent years, considerable attention has been given by aircraft manufacturers to the development and utilisation of natural fibres instead of synthetics. This is because natural fibres are a renewable raw material and their availability is more or less unlimited; they have very good heat, acoustic and electrical insulating properties, as well as very good mechanical properties, especially tensile strength. The main aim of this study is to improve the mechanical and thermal properties of sisal fibre-reinforced polypropylene composites. Description: 4th CSIR Biennial Conference: Real problems relevant solutions, CSIR, Pretoria, 9-10 October 2012 Mon, 01 Oct 2012 00:00:00 GMT http://hdl.handle.net/10204/6301 2012-10-01T00:00:00Z http://hdl.handle.net/10204/6242 Title: Energy transfer during the hydroentanglement of fibres Authors: Moyo, D Abstract: The hydroentanglement of fibres is achieved by the energy of the high-velocity waterjets. This method is highly energy intensive and costly, hence the attempt to study the energy transfer during the process. Generally, the amount of energy used, and the resultant degree of fibre entanglement, determines the tensile strength of the nonwoven fabric as a consequence of the inter-fibre friction. Here, the relationship between ydroentangling energy from the waterjets and the changes it brings about in the nonwoven fabric strength were studied. In the study, the energies of the waterjets transferred to every fabric sample as a function of the waterjet pressure, machine speed, machine efficiency and the web area weight were quantified, and the resultant fabric tensile strengths were compared. Description: 4th CSIR Biennial Conference: Real problems relevant solutions, CSIR, Pretoria, 9-10 October 2012 Mon, 01 Oct 2012 00:00:00 GMT http://hdl.handle.net/10204/6242 2012-10-01T00:00:00Z http://hdl.handle.net/10204/6237 Title: Potential of biocomposites for economic development in Southern Africa Authors: Anandjiwala, R Abstract: In this presentation the author presents the rationale and potential of research and product development in biocomposites in context to economic development in South Africa. Description: 4th CSIR Biennial Conference: Real problems relevant solutions, CSIR, Pretoria, 9-10 October 2012 Mon, 01 Oct 2012 00:00:00 GMT http://hdl.handle.net/10204/6237 2012-10-01T00:00:00Z