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Browsing Research and Innovation Unit by Title

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  • utilising online gas analyser to detect gassing transformation in a distribution substation 
    Vermaak, H.J.; Motau, T. (2017)
    The stability of any network is very much depending on the performance of the power transformers.
  • Vacuum casting as a rapid manufacturing and prototyping option 
    Aggenbacht, F.C. (Interim : Interdisciplinary Journal, Vol 4, Issue 1: Central University of Technology, Free State, Bloemfontein, 2005)
    This article looks at the role that vacuum casting plays in the rapid prototyping and rapid manufacturing process. The accuracy to which components can be reproduced, by looking at the controllable factors in the casting ...
  • Validating a reconfigurable assembly system utilizing virtual commissioning 
    Vermaak, H.J.; Niemann, J.A. (Central University of Technology, Free State, Bloemfontein: Interim : Interdisciplinary Journal, 2015)
    South African manufacturing companies today need to be more sophisticated technologically to compete for global markets. The latest trend in automation and manufacturing emerges in the form of reconfigurable systems. The ...
  • Validating the acceptance zone for PV modules using a simplified measuring approach 
    Swart, A.J. (Central University of Technology, Free State, Bloemfontein: Interim : Interdisciplinary Journal, 2015)
    Optimizing the output power of any PV module involves a number of factors, including the orientation angle. However, many PV modules are not installed at the suggested orientation angle of 0° N in South Africa, thereby ...
  • Validating the optimum tilt angle for PV modules in the central region of South Africa for the winter season 
    Hertzog, P.E. (Central University of Technology, Free State, Bloemfontein: Interim : Interdisciplinary Journal, 2015)
    Optimizing the output power of any PV module involves a number of factors, including the setting of the tilt angle. The purpose of this paper is to present empirical evidence validating the optimum tilt angle for PV module ...
  • VALIDATION OF MINIATURISED TENSILE TESTING ON DMLS TI6AL4V (ELI) SPECIMENS 
    van Zyl, Ian; Moletsane, M; Krakhmalev, Pavel (The South African Journal of Industrial Engineering, 2016)
    Direct metal laser sintering (DMLS) is a relatively new technology that is developing rapidly. Since DMLS material is created by melting/solidifying tracks and layers from powder, even building geometry can influence the ...
  • VALUE CREATION AND INHERENT CONSTRAINTS IN THE MALAWIAN CONSTRUCTION INDUSTRY 
    Samuel, Kadangwe; Fidelis, Emuze (INTERNATIONAL JOURNAL OF CONSTRUCTION SUPPLY CHAIN MANAGEMENT, 2017)
    One aspect of project management that requires attention is value creation and inherent challenges in the construction industry. The purpose of the research is to ascertain the factors affecting value creation and to ...
  • The value of long-chain fatty acid composition in the Taxonomy of species representing the genus Kluyveromyces 
    Cottrell, Michéle; Kock, J.L.F.; Lategan, P.M.; Botes, P.J. (Elsevier: Systematic and Applied Microbiology, 1987)
    The long-chain fatty acids of 52 Kluyveromyces strains were extracted by saponification and analyzed as methyl esters by gas chromatography. The similarities between the strains were calculated on the basis of their fatty ...
  • Variability Analysis Of Dry Spells For Improving Agribusiness Management In Lesotho 
    Hlalele, Bernard. M. (Jàmbá: Journal of Disaster Risk Studies 12(1) 2020, a814, 2020-11-16)
    In sub-Saharan Africa, rain-fed agriculture remains one of the major sources of food, employment for low-skilled and rural community members and income for both commercial and subsistence farmers. Understanding problems ...
  • Varying percentages of full uniform shading of a PV module in a controlled environment yields linear power reduction 
    Swart, Arthur James; Hertzog, Pierre E. (Journal of Energy in Southern Africa, 2016)
    Partial shading of a PV module has received much attention over the past few years, as it results in uneven cell power generation, compromising a PV system performance. Full uniform shading of a PV module has not received ...
  • Verbal Alternations in Sesotho: A Case of Lexical Semantics 
    Phindane, Pule Alexis (Journal of Sociology and Social Anthropology, 2015)
    This study discusses two types of verbal alternation in Sesothothat have the same syntactic structure, but differ in their semantic representations and in their lexical syntax structures. The first scenario: ‘Ntate o ...
  • Verifying data for the implementation of the water release module of the WAS program 
    van Vuuren, A Jansen; Pretorius, E; Benadé, N (Water Research Commission: Water S.A., 2006)
    The Water Administration System (WAS) is designed to be a management tool for irrigation schemes and water control offices that want to manage their water accounts and supply water to clients through canal networks, pipelines ...
  • Vestigingsvraagstukke van ondernemings : 'n kort oorsig 
    Duvenage, J.B. (Interim : Interdisciplinary Journal, Vol 4, Issue 2: Central University of Technology, Free State, Bloemfontein, 2005)
    One of the most important decisions an entrepreneur can make is to determine the physical location of the enterprise. Each enterprise has its own ideal place. The place of establishment must contribute to the optimal ...
  • The virtual university 
    De Munnik, Evert (Journal for New Generation Sciences, Vol 2, Issue 2: Central University of Technology, Free State, Bloemfontein, 2004)
    The article views the concept of a virtual university. Various conceptual definitions are presented to debate the question on what a virtual university is. The author explains the important contribution of technology driven ...
  • Wavelets and short time fourier transforms on ultrasonic doppler signals for pregnancy determination in sheep 
    Hertzog, P.E.; Jordaan, G.D. (Interim : Interdisciplinary Journal, Vol 5, Issue 1: Bloemfontein : Central University of Technology, Free State, 2006)
    The reproductive status of animals is of utmost importance to the modern farmer. Decisions concerning the management of the flock are influenced by the knowledge of the percentage of animals that are pregnant at any specific ...
  • Way forward for agricultural development in Sub-Saharan Africa 
    Ingle, M. (African Journal of Public Affairs, 2015)
    This review article argues that rural sub-Saharan Africa has suffered from a wide range of disadvantages that have stunted its agricultural development. Agricultural areas have been characterised by policy voids and ...
  • Ways to improve research outputs of nurse academics in sub-Saharan Africa 
    Botma, Y.; Roets, L. (Journal for New Generation Sciences, Vol 11, Issue 1: Central University of Technology, Free State, Bloemfontein, 2013)
    In academia, evidence of scholarship, e.g. published articles, is required for career progression. A consensus-seeking design was used to identify ways in which nurse academics in sub-Saharan Africa could be mentored to ...
  • What we have learned : student teachers' views on the quality of mentoring and teaching practice in township schools 
    Badenhorst, J.; Badenhorst, B. (Journal for New Generation Sciences, Vol 9, Issue 2: Central University of Technology, Free State, Bloemfontein, 2011)
    In South Africa a high premium should be placed on the value of effective education and training to achieve an array of economic and social objectives. The development of a strong and functional education system is closely ...
  • The wheelchair accessibility of Bloemfontein's guest houses and hotels 
    Posholi, M.; Kokt, D. (Interim : Interdisciplinary Journal, Vol 10 , Issue 1: Central University of Technology Free State Bloemfontein, 2011)
    Wheelchair friendliness is an issue that needs to be taken very serious. Awareness should be created so that the owners of the accommodation establishments have a complete knowledge about wheelchair friendliness. The ...
  • Who Visits A Nature Based Urban Attraction And Why? An Exploratory Study Of The Motivations To Visit The Pretoria Zoo In South Africa 
    Mkhize, Bianca, N. (African Journal of Hospitality, Tourism and Leisure, Volume 9 (2) - (2020), 2020)
    Urban tourism is one of the most dynamic types of tourism. The demand for travel to specifically cities, has greatly increased over the last few decades. Although much of the world’s tourism activity occurs in urban areas ...

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