Author:Sivakumar, V; Vishnu Prasanth, P; Kishore, P; Bencherif, H; Keckhut, PDate:2011For the first time, climatology of the middle atmosphere thermal structure is presented, based on 14 years of LIDAR and satellite (HALOE, SABER, CHAMP and COSMIC) temperature measurements. The data is collected over a southern sub-tropical ...Read more
Author:Ittmann, HWDate:1996South Africa has made historical changes during the past six years. With the change of Government in May 1994, the majority party of the Government of National Unity, the ANC, announced its master plan for the new South Africa. That was the ...Read more
Author:Archer, Emma RMDate:Oct 2011Scientists in southern Africa and elsewhere focusing on climate change and agriculture are increasingly demonstrating how livestock, as a highly climate sensitive sector, may be affected by climate change. The Fourth Assessment Report (AR4) ...Read more
Author:Genthe, Bettina; Kapwata, Thandi; Le Roux, Wouter J; Chamier, Jessica; Wright, Caradee YDate:May 2018Anthropogenic pollution was identified as an environmental problem of concern when, in 2008, dozens of crocodiles died in the Olifants River catchment near the border of South Africa and Mozambique. Given the close proximity of households to ...Read more
Author:Chauke, L; Garbers-Craig, AMDate:Jul 2013Interaction between electrolyte and carbon cathodes during the electrolytic production of aluminium decreases cell life. This paper describes the interaction between carbon cathode materials and electrolyte, based on industrial and laboratory ...Read more
Author:Vetter, C; Dudley, Angela L; Szameit, A; Forbes, ADate:Aug 2017Accelerating waves have received significant attention of late, first in the optical domain and later in the form of electron matter waves, and have found numerous applications in non-linear optics, material processing, microscopy, particle ...Read more
Author:Das, Sonali; Gupta, R; Kanda, PT; Reid, M; Tipoy, CK; Zerihun, MFDate:Dec 2012The real interest rate is a very important variable in the transmission of monetary policy. It features in vast majority of financial and macroeconomic models. Though the theoretical importance of the real interest rate has generated a sizable ...Read more
Author:Gopal, Ajith K; Wium, ElsmariDate:Aug 2019The application of a modified A-star (A*) global search algorithm and trajectory planner based on the tentacles algorithm approach are investigated for real-time path and trajectory planning on an unmanned ground vehicle operating at a speed ...Read more
Author:Alimi, OA; Ouahada, K; Abu-Mahfouz, Adnan MIDate:Jun 2019In today’s grid, the technological based cyber-physical systems have continued to be plagued with cyberattacks and intrusions. Any intrusive action on the power system’s Optimal Power Flow (OPF) modules can cause a series of operational ...Read more
Author:Sibolla, Bolelang H; Van Zyl, T; Coetzee, SDate:Aug 2023A moving feature is described as a rigid body whose location changes over time (Asahara et al., 2015). Fitted with sensor devices, these features often transmit information about their location, coupled with additional attributes that describe ...Read more
Author:Page, Philip R; Abu-Mahfouz, Adnan MI; Yoyo, SDate:Aug 2016Remote real-time control is currently the most advanced form of pressure management. Here the parameters describing pressure control valves (or pumps) are changed in real-time in such a way to provide the most optimal pressure in the water ...Read more
Author:Abu-Mahfouz, Adnan MI; Hamam, Y; Page, Philip R; Adedeji, KB; Anele, AO; Todini, EDate:Mar 2019The impact of climate change and increasing urbanisation throughout the world has forced water utility managers to increase the efficiency of water resources. Reduction of real (or physical) water losses plays a crucial role in improving the ...Read more
Author:Makgabutlane, M; Wright, CYDate:May 2015The city of Pretoria in South Africa receives considerable solar ultraviolet radiation (UVR) because of its low latitude (22–35°S) and relatively clear skies. Certain meteorological factors affect the amount of solar UVR that reaches the ...Read more
Author:Du Toit, PJW; Burd, SC; Konrad, T; Uys, HermannDate:Dec 2018We present protocols for feedback control and stabilization of a single qubit undergoing Rabi oscillations. Using a hybrid quantum-classical Bayesian estimation technique we simulate monitoring of the dynamical parameter (Rabi frequency) of ...Read more
Author:Mulder, I; Bohle, W; Boshomane, MS; Morris, CF; Tempelman, H; Velthausz, DDate:Aug 2008A Living Lab is a new way to deal with community-driven innovation. Living Labs represent, mostly regional – innovation environments focusing on user communities embedded within real-life. In Europe the Living Labs concept seems to be largely ...Read more
Author:Land, Kevin J; Boeras, DI; Chen, X-S; Ramsay, AR; Peeling, RWDate:Dec 2018Lack of access to quality diagnostics remains a major contributor to health burden in resource-limited settings. It has been more than 10 years since ASSURED (affordable, sensitive, specific, user-friendly, rapid, equipment-free, delivered) ...Read more
Author:Gusain, Rashi; Kumar, Neeraj; Ray, Suprakas SDate:Feb 2020Deterioration of water quality and the unavailability of drinkable water are pressing challenges worldwide. Removal of toxic organic and inorganic pollutants from water is indispensable for a clean environment, as a response to water scarcity, ...Read more
Author:Baloyi, R; Gbadeyan, OJ; Sithole, B; Chunilall, VirenDate:Nov 2023The fast fashion trends in the textile industry have resulted in high consumption of fiber with concomitant generation of waste. Awareness of environmental pollution resulting from textile production and disposal has increased significantly. ...Read more