Author:Hunter, LDate:Dec 1989Cotton lint contamination can be sub-divided into two main groups, namely those of natural origin and those of man-made origin.Read more
Author:Robinson, GA; Cawood, MP; Dobson, DADate:Mar 1977Knitting of all cotton and 60/40 percent cotton/polyester blends from singles yarns on a 28 gauge machine is described.Read more
Author:Shiloh, M; Hanekom, ECDate:Jul 1973Fabrics were woven from 30/70 wool/cotton yarns, two of them being plain weaves of 200g/m and 140 g/m, and one a poplin of 200 g/m.Read more
Author:Crouch, NR; Styles, DG; Walters, MicheleDate:May 2021A new Cotyledon species, C. nielsii N.R.Crouch, D.Styles & Mich.Walters, is described from cliffs of the western part of eThekwini Metro near the city of Durban, KwaZulu-Natal province, South Africa. The species is closely allied to the ...Read more
Author:Musvoto, Constansia DDate:Feb 2015South African agriculture is dominated by the large scale commercial sector. However, the government of South Africa recognises the potential role of small scale farming in the economy of the country and in job creation. South Africa has ...Read more
Author:Gupta, R; Tipoy, CK; Das, SonaliDate:2010This paper analyzes the ability of a random walk and, classical and Bayesian versions of autoregressive, vector autoregressive and vector error correction models in forecasting home sales for the four US census regions (Northeast, Midwest, ...Read more
Author:Das, Sonali; Gupta, R; Kabundi, ADate:2009This paper develops large-scale Bayesian Vector Autoregressive (BVAR) models, based on 268 quarterly series, for forecasting annualized real house price growth rates for large-, medium- and small-middle-segment housing for the South African ...Read more
Author:Veerasamy, Namosha; Grobler, MDate:Oct 2010Cyberterrorism addresses the convergence of the fear-causing world of terrorism with the abstract realm of cyberspace, computers and networks. While cyberterrorism can be executed using various technical security exploits, it inherently stems ...Read more
Author:Loveday, Philip WDate:Jan 1996Coupled electromechanical equations of motion, describing the dynamics of a vibrating cylinder gyroscope, are derived using Hamilton's principle and the Rayleigh-Ritz method. The vibrating cylinder gyroscope comprises a thin walled steel ...Read more
Author:Khomenko, MD; Makoana, Nkutwane W; Pityana, Sisa L; Mirzade, FKHDate:Jul 2021A new coupled heat transfer and solidification kinetics model is developed for the optimization of microstructure during laser additive manufacturing applications. The Johnson–Mehl–Avrami–Kolmogorov equation is applied in a self-consistent ...Read more
Author:Awuor, F; Djouani, K; Noel, G; Olwal, TDate:Sep 2011Link adaptation provides an efficient and flexible strategy to adapt transmission rates based on channel conditions. To attain distributed optimal local and global utility, network interference need to be mitigated therein allowing the users ...Read more
Author:Burd, CC; Du Toit, PJW; Uys, HDate:Oct 2014We have demonstrated simultaneous laser frequency stabilization of a UV and IR laser, to coupled transitions of ions in the same spectroscopic sample, by detecting only the absorption of the UV laser. Separate signals for locking the different ...Read more
Author:Haelterman, R; Bogaers, Alfred EJ; Degroote, J; Cracana, SDate:Mar 2017Many physics problems can only be studied by coupling various numerical codes, each modeling a subaspect of the physics problem that is addressed. Often, each of these codes needs to be considered as a black box, either because the codes were ...Read more
Author:Van der Walt, PG; Naude, J; Lubbe, SW; Hutcheson, PJ; Meyer, JP; Spencer, KCDate:Nov 2000One of the findings of SIMRAC Project GAP 520 dated March 1999 ('Investigate safety of rail vehicles and systems operating in South African gold mines') was that about 20% of accidents involving locomotives and rolling stock were during ...Read more
Author:Padayachee, I; Kotzé, Paula; Van der Merwe, ADate:2011The advent of the Internet and the World Wide Web has revolutionised practices in business, government, health, and education amongst others. In education, the Internet and World Wide Web opened new doors for teaching and learning, thereby ...Read more
Author:Tumba, NL; Naicker, Previn; Stoychev, Stoyan H; Killick, MA; Owen, GR; Papathanasopoulos, MADate:Jul 2022The human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein (Env) mediates host cell infection by binding to the cellular receptor CD4. Recombinant Env bound to CD4 has been explored for its potential as an HIV vaccine immunogen as ...Read more