Browsing by Title
Now showing items 12721-12740 of 35397
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Evaluation of binders in briquetting of coal fines for application in combustion processes
(North-West University (South Africa), 2019)Fine coal (-1 mm top size) is a global problem in terms of handling and pollution. It is expected that at least 6 percent of run-of-mine coal will be fines, and this does not include the fines generated in mining, ... -
Evaluation of bio-char based products as hydrotreating catalysts for the production of renewable fuel
(2017)Increasing demand for alternative fuel from fossil fuel exists which has led to the development of new technologies for the production of bio-fuels. One such technology involves the hydrotreatment of vegetable oils such ... -
Evaluation of Brush Packing Methods on different Semi-Arid Savanna Soil Types and Properties
(North-West University (South Africa), 2022)In Africa, savannas are important biomes used for raising livestock. Encroachment by woody species (so-called “bush encroachment”) disrupts the natural equilibrium between the herbaceous layer and the tree and shrub densities ... -
The evaluation of bush thickening in two management systems in three districts of the North West Province in South Africa : a LandCare initiative
(North-West University, 2003)The problem of land degradation is something that can not be ignored in this day and age. A food shortage as a result of desertification is a reality in especially, the African continent. One of the factors contributing ... -
An evaluation of Calvin's theological position against the libertines
(Potchefstroom University for Christian Higher Education, 1987)In die loop van die sestiende eeu het verskeie radikale sektes Calvyn se pogings tot hervorrning probeer kortwiek. Een hiervan, die Libertyne, is die onderwerp van Calvyn se traktaat Teen die Libertyne (1545). Hierdie ... -
Evaluation of carbon fibre powder scrapers used in metal additive manufacturing
(North-West University (South-Africa). Potchefstroom, 2019)Powder Bed Fusion (PBF) is an Additive Manufacturing process which builds parts, layer by layer, by melting the cross-section of the part onto a powder layer. Aeroswift is a PBF machine, designed and built in South Africa. ... -
Evaluation of carbon fibre powder scrapers used in metal additive manufacturing
(North-West University (South Africa), 2019)Powder Bed Fusion (PBF) is an Additive Manufacturing process which builds parts, layer by layer, by melting the cross-section of the part onto a powder layer. Aeroswift is a PBF machine, designed and built in South Africa. ... -
Evaluation of catalyst activity for release of hydrogen from liquid organic hydrogen carriers
(Elsevier, 2019)This contribution investigate the effect of parameters for production of hydrogen by catalytic dehydrogenation of perhydrodibenzyltoluene (H18-DBT). The sensitivity of the dehydrogenation reaction to temperature (290–320 ... -
Evaluation of change management: a survey on accounting firms in Chiredzi, Zimbabwe
(North-West University (South Africa), 2019)The underutilisation of electronic tax filing systems by tax agencies has resulted in an ever-increasing number of non-tax compliance amongst the tax paying community around the globe. Despite the presence of electronic ... -
Evaluation of charge density and the theory for calculating membrane potential for a nano-composite nylon-6,6 nickel phosphate membrane
(RSC, 2012)A new crystalline organic–inorganic nano-composite nylon-6,6 nickel phosphate membrane was synthesised subsequent to which (a) the physico-chemical characteristics of the membrane were evaluated employing FTIR, SEM, EDX, ... -
An evaluation of China's influence in Zimbabwe's internal affairs from 2003 to 2018
(North-West University (South Africa), 2022)The study examined China’s influence in the internal affairs of Zimbabwe from 2013 to 2018. It determined the push and pull factors that drove the China-Zimbabwe diplomatic relations, it examines the implications of ... -
Evaluation of climate model aerosol seasonal and spatial variability over Africa using AERONET
(EGU, 2017)The sensitivity of climate models to the characterization of African aerosol particles is poorly understood. Africa is a major source of dust and biomass burning aerosols and this represents an important research gap in ... -
An evaluation of coal briquettes using various binders for application in fixed- bed gasification
(North-West University (South Africa) , Potchefstroom Campus, 2016)South Africa continues to rely considerably on coal as a source of energy and carbon derived chemicals. The rigorous coal mining processes result in the production of over 28 Mt of coal fines per annum. Depleting coal ... -
Evaluation of coal char gasification kinetics and pore development in high pressure steam and carbon dioxide
(North-West University (South Africa), 2020)Coal is utilised in the coal-to-liquid (CTL) process on a large scale in South Africa and significantly contributes to the country’s energy demand. In this conversion process, the primary step is the high pressure gasification ... -
The evaluation of coated and uncoated seed mixtures for the rehabilitation of gold and platinum mine tailings
(North-West University, 2018)The establishment of vegetation on platinum and gold Tailing storage facilities (TSFs) to stabilise the TSF surface against erosion (phytostabilisation) are met with many challenges; acid and alkaline pH levels of tailings, ... -
Evaluation of common genetic variants associated with type 2 diabetes susceptibility in a black South African population
(2014)Introduction: The continual increase of type 2 diabetes (T2D) prevalence is a global public health concern. The aetiology of T2D has not been fully elucidated and this is hampering the development of effective preventative ... -
Evaluation of community based care and support services for older persons in Motheo district, Free State Province
(2013)The focus of this study is on the evaluation of community based care and support service for older persons in the community. The government of South Africa and other African Countries held several discussions with the ... -
Evaluation of community participation in Mafikeng Local Municipality
(North-West University (South Africa), 2021)"No Abstract" -
Evaluation of community-based growth monitoring in rural districts of the Eastern Cape and KwaZulu-Natal provinces of South Africa
(MedPharm Publications, 2009)Background: The Health Systems Trust implemented a community-based growth-monitoring intervention project that fits into the Integrated Nutrition Programme focus areas and commissioned an evaluation of this project. ... -
An evaluation of configuration parameters affecting network coding on the data link layer in a wireless network
(IEEE, 2011)Network Coding, introduced in [2], promises significant theoretical capacity gains in multicast networks. Practical implementations in underlay networks are however quite complex in practice and performance is subject to ...