Author:Pratt, Lawrence E; Govender, Devashen; Klein, RDate:Nov 2021Electroluminescence (EL) images enable defect detection in solar photovoltaic (PV) modules that are otherwise invisible to the naked eye, much the same way an x-ray enables a doctor to detect cracks and fractures in bones. The prevalence of ...Read more
Author:Jule, L; Dejene, F; Ali, AG; Roro, Kittessa T; Mwakikunga, Bonex WDate:Jul 2017In this work, electron paramagnetic resonance (EPR) experiment on undoped ZnO and Al doped ZnO (AZO) nanoparticles prepared by facile sol–gel method were investigated. The effects of the Al concentration on room temperature ferromagnetic (FM) ...Read more
Author:Van den Bergh, FransDate:Mar 2018The slanted-edge method of spatial frequency response (SFR) measurement is usually applied to grayscale images under the assumption that any distortion of the expected straight edge is negligible. By decoupling the edge orientation and position ...Read more
Author:Van Wyk, Llewellyn V; Knoetze, Theunis PDate:May 2007In exploring the possibility of establishing a theory of construction for development, this paper reviews concepts of theory and theory formulation, contextualises optimal developmental modalities, describes the role of construction within ...Read more
Author:Maposa, Sibonginkosi; Duncker, Louiza C; Ngorima, ENDate:May 2012This paper presents the experiences and lessons from the Accelerating Sustainable Water Services Delivery (ASWSD) initiative that is currently being implemented in South Africa. The initiative is being spearheaded by the Department of Science ...Read more
Author:Thaba, James M; Mtsweni, Jabu SDate:Nov 2023The domains of warfare have become complex, where cyberspace is declared as the fifth domain. The complexity of cyber space is that it is borderless, and war could be launched from anywhere, and is a serious concern for national security. ...Read more
Author:Jonker Klunne, WDate:Jan 2013Worldwide increasing attention to energy consumption and associated environmental impacts thereof has resulted in a critical attitude towards energy usage of building. Increasing costs of energy and dependence on energy service providers add ...Read more
Author:Da Veiga, A; Astakhova, LV; Botha, Adèle; Herselman, Martha EDate:May 2020The ideal or strong information security culture can aid in minimising the threat of humans to information protection and thereby aid in reducing data breaches or incidents in organisations. This research sets out to understand how information ...Read more
Author:Archibald, S; Lehmann, CER; Gómez-Dans, JL; Bradstock, RADate:Apr 2013Fire is a ubiquitous component of the Earth system that is poorly understood. To date, a global-scale understanding of fire is largely limited to the annual extent of burning as detected by satellites. This is problematic because fire is ...Read more
Author:Smith-Godfrey, SDate:2016Oceans are increasingly gaining in importance in terms of enabling international trade via linking sellers and buyers. The behaviour patterns of such linking enablers on the oceans are receiving more attention from a regulatory and economic ...Read more
Author:Motlogeloa, O; Fitchett, JM; Sweijd, Neville ADate:Jan 2023The acute respiratory infectious disease season, or colloquially the “flu season”, is defined as the annually recurring period characterized by the prevalence of an outbreak of acute respiratory infectious diseases. It has been widely agreed ...Read more
Author:Vhahangwele, M; Mugera, GW; Tholiso, NDate:Nov 2014Al(sup3+)-bentonite clay (Alum-bent) was prepared by ion exchange of base cations on the matrices of bentonite clay. Intercalation of bentonite clay with Al(sup3+) was performed in batch experiments. Parameters optimized include time, dosage, ...Read more
Author:Gxowa, Zizo; Chown, LH; Govender, Sagren; Curle, UlyateDate:Oct 2016This work evaluates the deformation behaviour, at warm working temperatures, of green particle-reinforced aluminium composites produced by powder blending in a high-energy ball mill. The work focuses on metal matrix composites (MMCs) based ...Read morecb
Author:Louw, M; Reid, SJDate:May 1995A novel method has been developed for increasing the production of commercially valuable enzymes, such as proteases, beta-glucanases, alpha-amylases and levansucrase. It is dependent on two genes cloned from Bacillus brevis, expressed on a ...Read more
Author:Giri, S; Bhaumik, M; Das, R; Gupta, VK; Maity, ArjunDate:Mar 2016Dehalogenation of aryl halides was demonstrated using polyaniline/zero valent iron composite nanofiber (termed as PANI/Fe0) as a cheap, efficient and environmentally friendly heterogeneous catalyst. The catalyst was prepared via rapid mixing ...Read more
Author:Rademeyer, M; Van Heerden, FR; Van Der Merwe, MMDate:Jan 2009The three-ring eudesmanolide, C15H16O3, is a natural product isolated from Dicoma anomala Sond. (Asteraceae). The compound contains an endo-exo cross conjugated methylenecyclohexenone ring with an envelope conformation trans-fused with ...Read more
Author:Oyewobi, SS; Hancke, GP; Abu-Mahfouz, Adnan MI; Onumanyi, Adeiza JDate:Aug 2019Cognitive radio has emerged as an enabling technology in the realization of a spectrum-efficient and delay-sensitive industrial wireless communication where nodes are capable of responding in real-time. However, particularly for time-critical ...Read more