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  Extraction of magnesium from chrome slag by sulphiric acid leaching at low temperatures Dube, Samukeliso ; Tshuma, Bret ; Jele, Thabisile B ; Nkompilo, Sikhulile ; Tshuma, Lawrencia ; Moyo, Langa B ; Hlabangana, Nkosikhona ; Nkomo, Fortune ; Ncube, Phendukani , 2018-11 In this this article ,a solvent extraction method by using sulphuric acid leaching was developed .The process conditions and parameters of sulphuric acid concentration ,leaching temperature ,leaching time and solid to liquid ratio were studied. The[more...]
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  Effect of ball and feed particle size distribution on the milling efficiency of a ball mill: An attainable region approach Hlabangana, N. ; Danha, Gwiranai ; Muzenda, E , 2018-02-09 In this article, alternative forms of optimizing the milling efficiency of a laboratory scale ball mill by varying the grinding media size distribution and the feed material particle size distribution were investigated. Silica ore was used as the t[more...]
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  Effect of frother and depressant interaction on flotation of Great Dyke PGM ore. Mberi, T. ; Mguni, Liberty.L ; Ntuli, Freeman , 2018-01 In the optimization of platinum group metal flotation plants, various parameters are considered in order to achieve the desired recovery and grade of the precious metals. There should be a balance in the operating parameters so as to produce a hig[more...]
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  A flux-correct Green element model of quasi three-dimensional multiaquifer flow. Taigbenu, A.E. ; Onyejekwe, Okey O. , 2000-12 Transient flow in multiply layered aquifers, separated by connecting layers of aquitards which provide hydraulic interactions between the aquifers, is solved by the Green element method (GEM) in a manner that reveals one of its strengths of being abl[more...]
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  Using Bench Marking in Manufacturing as an Improvement Tool to Achieve World Class Status: A Case Study of a Zimbabwean Company. Zimwara, Davison ; Mbohwa, Charles , 2014 Bench marking help organisations to see how healthy their company is in comparison with others. It gives a guide as to how far an organisation lags behind world class manufacturing companies. This paper has developed a radar chart comparing the perfo[more...]
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  Treatment of Low Turbidity Water Using Poly-Aluminium Chloride (PAC) and Recycled Sludge: Case study Chinhoyi Jowa, Taurai ; Mguni, Liberty L , 2015 Coagulation of low turbidity water using PAC and recycled sludge was studied using a bench scale sedimentation jar test operated at ambient temperature and pressure. Tests were done on low turbidity raw water samples from the river Manyame in Chinhoy[more...]
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  The Effect of Traveller Speed on the Quality of Ringspun Yarns at Low Speeds Dzingai, Pethile ; Ndlovu, Lloyd, N. ; Ncube, Sizo ; Nyoni, A., B. , 2013 Ring spinning is the most common method for spinning yarn. Various parameters of the ring spinning machine affect the quality of yarn during the spinning process. The effect of ring traveller weight and spindle speed on yarn quality was investigated [more...]
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  Field Programmable Gate Array Based Variable Speed Drive for a Three-Phase Induction Machine. Bebova, S.A. ; Gunda, Lovemore ; Mudere, Stephen ; Nleya, Magripa, B. , 2016 In this article, the design of a Field Programmable Gate Array (FPGA) based Variable Speed Drive (VSD) is presented. The design is expected to lower VSD design costs through design integration, reduced time to market and meeting high performance driv[more...]
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  Development of a Compressional Bandage for Prospective use by Patients Nkomo, Nkosilathi Z ; Nkiwane, Londiwe C ; Chaibva, Cynthia N , 2015 The purpose of this research was to develop a short stretch weft knitted compression bandage that increases the venous flow of blood through the venous system without causing discomfort to the patient. Data collected showed that bandages in the Zimba[more...]
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  Chemical Properties of Jatropha Soap and its Effects on Reactive Dyed Cotton Fabrics as Compared to Commercial Soaps Sibanda, Nqobizitha R. ; Nyathi, Jacob A. ; Ndlovu, Lloyd N. , 2015 Jatropha soap has been produced from oil which is obtained from the jatropha curcas. This is an oil-rich drought resistant shrub, originating from Central America but has been grown in many areas of the world including Zimbabwe. This research focuses[more...]
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  Challenges of Implementing World Class Manufacturing Techniques in Zimbabwe. Zimwara, Davison ; Mbohwa, Charles , 2015 The world is facing a new war in the manufacturing arena; companies are competing for the same customers. The control of market share in the globalised world has become stiff such that companies are forced to change their manufacturing paradigms, phi[more...]
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  Centralised Incubator Control System Mtunzi, Busiso ; Chamisa, Malvern ; Madumbu, Zedekia ; Gonye, Reginald ; Nhenga-Mugarisanwa, Fidelis , 2016 This paper presents an infant incubator system that protects and helps incubate a premature infant while in hospital. The device is economical, robust, and uses easily replaceable parts. It consists of a control mechanism that makes use of fans, a hu[more...]
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  Review of Optimisation Applications in Rail Freight Logistics with a View to Identify Possible Applications in the Southern African Region Mhlanga, Samson ; Mbohwa, Charles ; Pretorius, Jan Harm C. ; Gwangwava, Norman , 2011 Logistics is one of the most important and critical economic drivers which determines the rate at which goods can be exported at the lowest cost. The paper reviewed Southern Africa rail freight infrastructure and planning activities. It interrogate[more...]
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  Design of an Integrated CAD and Quality Function Deployment (QFD) Product Data Management System (PDM). Gwangwava, Norman ; Mhlanga, Samson , 2011 New product development, a function that traditionally fell under marketing responsibility, should encompass in its scope every process from marketing, planning, design, production preparation, inspection, and selling from the perspective of manage[more...]
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  Design of a Control System to Enhance Process Perfomance in the Production of Sorghum Beer Maware, Catherine ; Gwangwava, Norman ; Jingura, Raphel M , 2013-05 The quality of products produced over the years has been the major concern for many industries. In brewing, the introduction of automated brewing systems has helped to reduce the variability of beer produced. The reasons for introducing the automated[more...]
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  Assessment of Enterprise Resource Planning Implementation in Zimbabwean Companies and Readiness Tool Towards a Strategic Success Framework Mhlanga, Samson ; Chikowore, Takawira, R . ; Msipa, Chengeto M ; Mbohwa, Charles ; Gwangwava, Norman ; Goriwondo, William M. , 2014-07 Enterprise Resource Planning (ERP) was a great leap of technology that received astounding welcome in the business world. However, with time problems began to surface, from complexity to inflexibility. Consequently, companies implementing ERP softwar[more...]
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  Antimalarial Phytochemicals: Delineation of the Triterpene Asiatic Acid Malarial Anti-Disease and Pathophysiological Remedial Activities - Part II Mavondo, Greanious Alfred ; Kasvosve, Ishmael , 2017-12 Malaria is a composite condition of the Plasmodium parasite infection and accompanying pathologies. Parasite induced red blood cell perturbations and immunological response to infection drive various organ-specific syndromes accounting for a huge pe[more...]
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  Integrated Cellular Manufacturing System Design: an Evolutionary Algorithm Approach Mutingi, Michael ; Mbohwa, Charles T. ; Mhlanga, Samson ; Goriwondo, William M. , 2012-07 Cellular manufacturing system design has received much attention for the past three decades. The design process involves decisions on (i) cell formation, (ii) cell layout, and (iii) layout of cells on the shop floor. These decisions should be address[more...]
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  Determining Optimum Wet Milling and Leaching Parameters for Maximum Recovery of Gold Mguni, Nonhlanhla G. ; Bhebhe, Siboniwe ; Danha, Gwiranai ; Tshuma, Joel ; Hlabangana, N. , 2017-12 Abstract: The comminution and leaching unit operations play a vital role in the extraction process of valuable minerals from ores. Historical research efforts have focused more on optimizing these two unit operations individually rather than as an [more...]
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  Determining an optimal interstitial filling condition: An Attainable Region approach Hlabangana, N. ; Madiba, M.S. ; Bhondayi, C. ; Mguni, Nonhlanhla G. ; Danha, Gwiranai , 2018 In this article, we present yet another application of the Attainable Region (AR) method to data from a laboratory scale milling of a low grade gold ore. In this particular case, we investigate how to optimize the amount of material in a desired si[more...]

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