${session.getAttribute("locale")} 5 Design of energy efficient hybrid VLC/RF/PLC communication system for indoor networks Wed 30 Oct 2019 09:42:03 SAST ]]> A critical analysis of the approach to local economic development (LED) in South Africa Wed 27 Feb 2019 09:43:07 SAST ]]> Photobiomodulation : an accepted therapeutic modality? Wed 23 Nov 2016 12:58:21 SAST ]]> Africa's contribution to the global movement for a culture of peace Wed 17 Mar 2021 16:37:56 SAST ]]> Identity and acculturation : the case for Africa Wed 07 Mar 2018 10:07:37 SAST ]]> Compliance at velocity within a DevOps environment Wed 06 Mar 2019 11:50:59 SAST ]]> The carbon dioxide adsorption behaviour of geological samples of the South-Eastern Main Karoo Basin, South Africa 800 m, taken from the Willowvale area, South-Eastern Karoo Basin, South Africa. Samples were extracted from a borehole core drilled as part of the Karin project. The samples were selected at depths between ~ 800 – 2100 m, and the borehole intercepted most of the Main Karoo Basin stratigraphy. The samples consisted of typical rocks identified throughout the Karoo Basin: sandstones, shales, and dolerites. A variety of analytical techniques were used to predict storage or seal potential, including microscopy, X-Ray Diffraction (XRD), Brunauer-Emmet-Teller (BET), and High Pressure Volumetric Analysis (HPVA). The mineralogy was determined using thin section petrography and confirmed by XRD. The sandstone samples consisted of: quartz; albite; chlorite; orthoclase, and muscovite; one sandstone sample (KWV-6) contained carbonates (dolomite). Typically, the shale samples consisted of: quartz; albite; chlorite; muscovite. The carbonaceous samples (KWV-14 and KWV-16) have clay (illite) and carbonate (calcite) compositions. The dolerites samples generally consist of: albite; anorthite, quartz, and diopside, dominated by plagioclase. Porosity was determined both in thin section, through the microscopic assessment of dyed epoxy resin, and by BET. Microscopically, visible porosity was only found in sandstone samples KWV-2 and KWV-6 as isolated spaces within the rock. BET porosity was found to be very low, ranging between 0.995 – 1.5 % (vol. %) and 0.0032 – 0.0.0045 cm3/g pore volumes. The CO2 adsorption assessment by a High Pressure Volumetric Analyser conducted at the Illinois State Geological Survey, was problematic. Quantities of CO2 adsorbed onto the rock samples were exaggerated, but the isothermal trends generated were usable. The isothermal trends and shapes of the graphs are comparable to literature in relation to their corresponding lithotypes. Excess adsorption ranges between 1.7 – 0.001 mol/g. Inflection points on isotherms were found with pressure ranges of ~5 – 10 MPa, where maximum adsorption was observed. The results show that the rock samples of the South-Eastern Main Karoo Basin have the potential to adsorb CO2, some more so than others. Dolerites were found to be the least adsorptive and the carbonaceous shale of the Whitehill Formation was found to adsorb the most CO2. Hence, the dolerite could be considered as a suitable seal, and the Whitehill Formation as both a storage reservoir or seal.]]> Wed 03 Jul 2019 07:24:56 SAST ]]> Characterisation of dissimilar friction stir welded 7075 and 6101 aluminum alloys Wed 01 Sep 2021 11:20:12 SAST ]]> Surface morphology characterisation : magnetron sputtering of nanostructured titanium carbide thin films on titanium and its alloys Wed 01 Sep 2021 11:16:56 SAST ]]> Investigating perceived competitive edge gained through information system use Tue 29 Jun 2021 14:07:28 SAST ]]> Manufacturing of aluminium composite materials : a review Tue 28 Jan 2020 11:27:56 SAST ]]> Laser metal deposition of titanium aluminide composites : a review Tue 28 Jan 2020 11:26:51 SAST ]]> An analytical and comparative study of Jews in the Qur’an in two West African Tafsīrs Tue 26 Sep 2017 08:16:56 SAST ]]> An international comparative study of Islamic finance loans Tue 21 Jan 2020 10:06:09 SAST ]]> Experiences of newly employed professional nurses regarding quality of work life at a private hospital in Gauteng Tue 20 Sep 2016 11:08:36 SAST ]]> Performance evaluation of femtocells over macrocell in a long term evolution network Tue 14 Aug 2018 12:10:44 SAST ]]> South Africa’s development assistance paradigm : approach towards Africa Tue 13 Jun 2017 10:24:05 SAST ]]> Adaptive automotive aerodynamics Tue 12 Nov 2019 16:27:05 SAST ]]> The impact of the spiritual life dimension on personal resilience Tue 12 Nov 2019 15:25:35 SAST ]]> AU and SADC involvement in conflict resolution in the Democratic Republic of Congo (DRC) : testing the AU’s principle of non-indifference Tue 12 Dec 2017 10:59:54 SAST ]]> Teachers’ awareness of Grade R children’s science process skills Tue 10 Sep 2019 08:57:26 SAST ]]> Genetic aberrations associated with photodynamic therapy in colorectal cancer cells Tue 01 Oct 2019 15:07:46 SAST ]]> An international comparative study of Islamic finance Thu 26 Nov 2020 12:34:45 SAST ]]> R&D productivity for science, technology and innovation policy development in Nigeria : a scientometric analysis of academic literature Thu 26 Nov 2020 12:13:51 SAST ]]> An appraisal of the legal framework on the debarment of financial representatives Thu 26 Nov 2020 11:35:27 SAST ]]> Biochemical responses of isolated lung CSCs after application of low intensity laser irradiation Thu 24 Nov 2016 10:50:50 SAST ]]> Test of herding behaviour in the Johannesburg stock exchange : application of quantile regression model Thu 23 Nov 2017 10:58:21 SAST ]]> Constitutive modelling of INCONEL 718 using artificial neural network Thu 23 Nov 2017 10:54:24 SAST ]]> Modelling the flow stress of alloy 316L using a multi-layered feedforward neural network with Bayesian regularization Thu 23 Nov 2017 10:34:26 SAST ]]> Force feedback analysis: friction stir welding of aluminium metal matrix composite Thu 22 Aug 2019 21:18:44 SAST ]]> Predictive mathematical modeling and computer simulation of direct ethanol fuel cell Thu 22 Aug 2019 21:12:31 SAST ]]> The functioning of internal audit in category 'A' municipalities in South Africa Thu 22 Aug 2019 21:05:30 SAST ]]> New photosensitizers for photodynamic therapy Thu 22 Aug 2019 20:16:32 SAST ]]> The consistency between the theory and practice of Islamic banking in South Africa Thu 22 Aug 2019 19:42:21 SAST ]]> Photodynamic therapy, a potential therapy for improve cancer management Thu 22 Aug 2019 19:22:07 SAST ]]> A deep gold mine metagenome as a source of novel esterases. Thu 22 Aug 2019 19:14:41 SAST ]]> A study to compare the effect of spinal manipulation versus mobilization on hamstring muscle strength Thu 22 Aug 2019 17:31:12 SAST ]]> The sovereignty of God in the Biblical basis of the theological view of predistination Thu 22 Aug 2019 16:14:34 SAST ]]> The management of support groups for patients with chronic diseases Thu 22 Aug 2019 12:04:36 SAST ]]> Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir Thu 22 Aug 2019 12:03:15 SAST ]]> Empirical examination of herding behaviour in the Johannesburg stock exchange : a sectoral analysis Thu 22 Aug 2019 10:13:25 SAST ]]> Identity at work : exploring strategies for identity work Thu 22 Aug 2019 08:39:04 SAST ]]> Microstructural characterization of friction stir lap welds of aluminium incorporated with titanium carbide Thu 22 Aug 2019 07:28:34 SAST ]]> An assessment of construction and demolition waste management systems in the Nigerian construction industry Thu 16 Sep 2021 10:35:19 SAST ]]> Reinforcement of aluminium AA1100-MIG welds using copper powder Thu 16 Aug 2018 10:18:30 SAST ]]> A holistic assessment of construction and demolition waste management in the Nigerian construction projects Thu 15 Jul 2021 21:47:00 SAST ]]> An analysis of the effects of homeopathic therapeutics on fungal putrefaction and mycotoxin concentration in fruit substrates Thu 15 Aug 2019 20:31:07 SAST ]]> Die faktorstruktuur van Bass se Veelfaktorleierskapsvraelys in die Suid-Afrikaanse konteks. Thu 15 Aug 2019 20:30:40 SAST ]]> Characterization of aluminium and titanium carbide metal matrix composites produced via friction stir welding Thu 10 Nov 2016 10:03:45 SAST ]]> Investors’ trading behaviour, stock selection and portfolio optimisation Thu 07 Feb 2019 11:45:47 SAST ]]> Fungal diversity and mycotoxin contamination of some selected food commodities from Ivory Coast Thu 05 Aug 2021 18:02:48 SAST ]]> A history of christianity in the JOS plateau area during the period of British colonial rule in Nigeria (1900-1960) Thu 04 Jun 2020 14:56:45 SAST ]]> Equilibria and isosteric heat of adsorption of methane on activated carbons derived from South African coal discards Sun 07 Feb 2021 18:03:06 SAST ]]> Characterization of rice hull ash and its performance in turbidity removal from water Sat 16 Sep 2017 02:22:13 SAST ]]> Comparative study of 3G and 4GLTE network Sat 16 Sep 2017 02:16:54 SAST ]]> The compatibility of Australian and South African private international law with the Hague Principles on Choice of Law in International Commercial Contracts Sat 16 Sep 2017 02:14:18 SAST ]]> Pictures in the teaching of Afrikaans as a second language in Indian secondary schools Sat 16 Sep 2017 01:47:01 SAST ]]> The effects on calculations of reading in a vicinity of clinical optometric measurements Sat 16 Sep 2017 01:29:50 SAST ]]> A quantitative and qualitative histological assessment of selected organs of Oreochromis mossambicus after acute exposure to cadmium, chromium and nickel Sat 16 Sep 2017 01:26:23 SAST ]]> Learned helpnessness, depression and self-esteem in mothers of children with specific learning disabilities Sat 16 Sep 2017 01:06:31 SAST ]]> A comparative analysis of political risks in Nigeria and Brazil Sat 16 Sep 2017 00:48:26 SAST ]]> The relationship between mindfulness and burnout amongst employees in a South African corporate organisation Sat 16 Sep 2017 00:28:58 SAST ]]> Gender, poverty and recreation in Lenasia : an agenda for change Sat 16 Sep 2017 00:26:35 SAST ]]> The role of the coordinator in structured mentoring schemes Sat 16 Sep 2017 00:24:04 SAST ]]> School violence directed towards educators in selected South African schools Sat 16 Sep 2017 00:21:48 SAST ]]> The relationship between mindfulness and burnout amongst employees in a South African corporate organisation Sat 16 Sep 2017 00:19:33 SAST ]]> Regulatory stakeholders’ perceptions of ethics management in the profession of industrial psychology in South Africa Sat 16 Sep 2017 00:16:49 SAST ]]> A treatment protocol for the treatment of cervical facet syndrome comparing the use of cryotherapy before or after the chiropractic adjustment Sat 16 Sep 2017 00:05:09 SAST ]]> The development of biblical views on the general resurrection of the dead. Sat 16 Sep 2017 00:04:59 SAST ]]> The responsibility of international organisations for non-fulfilment of their mandate in humanitarian crises Sat 16 Sep 2017 00:02:10 SAST ]]> Here and There : the Hillbrow Import–Export Centre Mon 23 Apr 2018 11:02:10 SAST ]]> The choice of non-state law in international commercial contracts Mon 19 Jul 2021 10:52:02 SAST ]]> Non-local modelling of strain softening in machining simulations Mon 19 Aug 2019 11:20:50 SAST ]]> Exploring the elephant in the room : the narratives of white educational psychologists Mon 19 Aug 2019 11:02:10 SAST ]]> The use of laser irradiation to stimulate adipose derived stem cell proliferation and differentiation for use in autologous grafts Mon 19 Aug 2019 10:09:39 SAST ]]> Oil and the Ijaw people of the Niger Delta States : 1956 to 1998 Mon 19 Aug 2019 10:01:36 SAST ]]> Faster than the speed of law : evaluating the challenges faced in regulating algorithmic and high frequency trading Mon 19 Aug 2019 09:03:32 SAST ]]> Maintaining the status quo? : an analysis of the reformative potential of section 25 Mon 17 Jul 2017 11:50:06 SAST ]]> Herding behaviour in financial markets : empirical evidence from the Johannesburg Stock Exchange Mon 14 Aug 2017 12:13:36 SAST ]]> Biomimetic strategies for climate change mitigation in the built environment Mon 13 Nov 2017 10:03:25 SAST ]]> A longitudinal assessment of Nigeria’s research output for evidence based science policy development Mon 11 Jan 2021 11:18:54 SAST ]]> Beyond good Muslim, bad Muslim : a decolonial critique of postcolonial Muslim ontology Mon 09 Sep 2019 12:05:11 SAST ]]> An assessment of construction and demolition waste management systems in the Nigerian construction industry Mon 09 Aug 2021 23:03:32 SAST ]]> Die regulering van termynkontrakte in Suid-Afrika Fri 23 Aug 2019 01:58:55 SAST ]]> Automata-aided estimation of similarity in novice programs Fri 23 Aug 2019 00:55:34 SAST ]]> The development of an anti-bullying intervention process at a primary school in Gauteng Fri 15 Sep 2017 23:45:25 SAST ]]> An investigation into the application of judicial case management in the South African civil court system to enhance quality and access to justice Fri 15 Sep 2017 23:17:02 SAST ]]> Eco-theology: Christian and Muslim perspectives. Fri 15 Sep 2017 23:13:30 SAST ]]> The facilitation of critical thinking in technology classrooms Fri 15 Sep 2017 23:08:36 SAST ]]> A study of fractures formed in the rock around an opening made by a reef boring machine Fri 15 Sep 2017 22:59:04 SAST ]]> Ouerbegeleiding aan stedelike swartes Fri 15 Sep 2017 22:56:59 SAST ]]> Provenance of ordovician to silurian clastic rocks of the Argentinean precordillera and its geotectonic implications Fri 15 Sep 2017 22:53:53 SAST ]]> Human resources management in the South African socio-economic context Fri 15 Sep 2017 22:48:00 SAST ]]> Differences in attribution style and self-conscious emotions between different categories of shyness Fri 15 Sep 2017 22:36:17 SAST ]]> Overcoming the effects of physical and emotional abuse through personal leadership development Fri 15 Sep 2017 22:36:14 SAST ]]> Polysulfone/β-cyclodextrin polyurethane mixed-matrix composite nanofiltration membrane for water treatment Fri 15 Sep 2017 22:36:01 SAST ]]> Towards a sociology of health care utilisation in the case of children with malaria in Nigeria Fri 15 Sep 2017 22:26:12 SAST ]]> The need to incorporate senior caregivers in health education relating to malaria in rural areas Fri 15 Sep 2017 22:20:33 SAST ]]> The inchoate document Fri 15 Sep 2017 22:19:25 SAST ]]> Optimisation of mixed assets portfolio using copula differential evolution : a behavioural approach Fri 04 Sep 2020 12:41:43 SAST ]]>