Author:Zunckel, M; Piketh, S; Freiman, TDate:Oct 1999The inferential method is applied to estimate dry deposition rates of sulphur at a remote rural site on the South African south-eastern escarpment. Two 2-week intensive monitoring campaigns were conducted during the Ben MacDhui High Altitude ...Read more
Author:Zunckel, M; Turner, CR; Wells, RBDate:Oct 1996A pilot study which uses the inferential method to estimate dry deposition of sulphur on the central Mpumalanga highveld is discussed in this paper. Ambient concentrations of sulphur dioxide, particulates and micro-meteorological measurements ...Read more
Author:Le Roux, D; Stock, WD; Bond, WJ; Maphanga, DDate:May 1996Clonal variation in water use efficiency (WUE), dry mass accumulation and allocation, and stable carbon isotope ratio (delta (13)C) of crude leaf fibre extracts was determined in six clones of Eucalyptus grandis W. Hill ex Maiden grown for ...Read more
Author:Bugan, Richard DH; De Clercq, W; Jovanovic, NebojsaDate:Nov 2010Increased dryland salinity in the Swartland and Overberg regions poses a threat to the bread basket of the Western Cape, water resources in an already water-stressed area, water supply to the industrialised Saldanha region as well as the ...Read more
Author:Taljaard, Susan; Slinger, JH; Van der Merwe, JDate:Nov 2013Despite the place-based nature of integrated coastal management (ICM) implementation and the importance of considering country-specific knowledge, a number of uniformities in ICM implementation have been distinguished. In this paper, the ...Read more
Author:Oliphant, CJ; Arendse, CJ; Malgas, GF; Motaung, DE; Muller, TFG; Knoesen, DDate:Oct 2009This paper reports on the deposition of crystalline single-helix carbon microcoils, in the as-deposited state, by the hot-wire chemical vapor deposition process without any special preparation of nano-sized transition metal catalysts and ...Read more
Author:Wen, L; Wu, Z; Luo, H; Song, R; Lia, FDate:2015Spinel Li(sub4)Ti(sub5)O(sub12) has become an alternative material to replace graphite anodes in terms of solving safety issues and improving battery life-time. Unfortunately, as Li(sub4)Ti(sub5)O(sub12) is an insulator, the low electrical ...Read more
Author:Shela, E; Liu, F; Wang, T; Farrag, M; Liu, J; Yacout, N; Kebede, Mesfin A; Sharma, N; Fan, LZDate:Apr 2020With a low cost and high volumetric capacity, rechargeable magnesium batteries (RMBs) have emerged as promising candidates for post-lithium ion batteries. The kinetically sluggish Mg2+ insertion/extraction in the host lattice and the ...Read more
Author:Steyn, JM; Odendaal, JW; Joubert, JDate:2009Paper presents a dual-band dual-polarized antenna array design for WLAN applications. Four double-dipole elements are orthogonally interleaved to facilitate operation in both the standard WLAN frequency bands (IEEE 802.11b and IEEE 802.11a) ...Read more
Author:Nofar, M; Salehiyan, Reza; Ciftci, U; Jalali, A; Durmus, ADate:Feb 2020In this study, binary and ternary immiscible blends of polylactide (PLA) with poly[(butylene adipate)-co-terephthalate] (PBAT) and poly[(butylene succinate)-co-adipate] (PBSA) were prepared through an injectionmolding (IM) process. Blend ...Read more
Author:Paige-Green, PDate:Feb 2007One of the most important materials for the construction of high quality pavement layers in roads in South Africa is the Basic Crystalline group of rocks. The major deposits of these materials are associated with the dolerites and basaltic ...Read more
Author:Gamedze, NF; Hunter, Lawrance; Zwane, PEDate:Jun 2019The growing awareness of environmental issues and damage has generated renewed interest in the use of eco-friendly natural dyes for natural fibres such as cotton. With that in mind, the dyeing of cotton fabrics with Syzygium cordatum natural ...Read more
Author:Newell, N; Neal, W; Pandelani, Thanyani A; Reinecke, John D; Proud, WG; Masouros, SDDate:Jan 2016Improvised Explosive Devices have been the signature weapon in the recent conflicts in Iraq and Afghanistan. High-rate axial forces exerted by the vehicle floor to the lower limbs of occupants have been the cause of severe injuries. In order ...Read more
Author:Naidoo, Kavendra; Skews, BWDate:Jun 2011There have been numerous studies on the steady state transition criteria between regular and Mach reflection of shock waves generated by a stationary, two-dimensional wedge in a steady supersonic flow, since the original shock wave reflection ...Read more
Author:Pothan, LA; George, CN; John, Maya J; Thomas, SDate:2009Hybrid composites of glass and banana fiber (obtained from the pseudo stem of Musa sapientum) in polyester matrix, are subjected to dynamic mechanical analysis over a range of temperature and three different frequencies. The effect of temperature ...Read more
Author:Olwal, TO; Van Wyk, BJ; Ntlatlapa, Ntsibane S; Djouani, K; Siarry, P; Hamam, YDate:2010With the tremendous growth of wireless networks into the next generation to provide better services, Wireless Mesh Networks (WMNs) have emerged to offer ubiquitous communication and seamless broadband applications. WMNs are hybrid networks ...Read more
Author:Nelwamondo, Fulufhelo V; Golding, D; Marwala, TDate:2013This paper develops and presents a novel technique for missing data estimation using a combination of dynamic programming, neural networks and genetic algorithms (GA) on suitable subsets of the input data. The method proposed here is well ...Read more
Author:Dludla, Angeline G; Mekuria, FissehaDate:May 2021Radio Frequency spectrum is the superhighway enabling a myriad of wireless ICT services and applications. Spectrum scarcity and expensive licensing cost has resulted in research and innovations by the CSIR, wireless network providers and ...Read more
Author:Dala, LDate:2015This research is based on the investigation into the dynamic stability associated with seaplanes during take-off. Various forces acting on a hydroplaning hull form have been empirically defined. Such empirical data have shown that under a ...Read more
Author:Naidoo, Kavendra; Skews, BWDate:Jul 2014The steady, two-dimensional transition criteria between regular and Mach reflection are well established. Little has been done on the dynamic effect on transition due to a rapidly rotating wedge. Results from experiments and computations done ...Read more