Author:Makhari, A; Hawes, Nomashaka BN; Mturi, George AJ; Ojijo, Vincent ODate:Jul 2021Modifying bitumen is currently a common practice in South Africa. The asphalt pavement industry has seen an increase in use of different types of modifiers in an attempt to improve or extend the properties of bitumen. Common modifiers used ...Read more
Author:Steenkamp, CM; Dickenson, GD; Nortje, AC; Rohwer, EG; Du Plessis, ADate:Sep 2010Twenty rovibronic transitions of the e(v'=5)-X(v''=0) band of the 12C16O which experimental wavelengths were previously unavailable were recently detected by vr induced fluorescence excitation spectroscopy. The data is important in astrophysical ...Read more
Author:Le Roux, Lukas JDate:Sep 2010The work that is presented here is focused on the results that were obtained during studies of the performance of the DSC under certain reverse bias conditions. When one cell in the series connection in a module is shaded, the current will ...Read more
Author:Akintemi, EO; Govender, Krishna K; Singh, TDate:Feb 2022Density function theory calculations was used to determine the molecular parameters, electronic and chemical reactivity descriptors, spectroscopy, and non-linear optical properties, electronic dipole moment, polarizability and hyperpolarizability ...Read more
Author:Raseleka, RM; Human, HGCDate:2004An electro thermal vaporizer (ETV) coupled to a time-of-flight mass spectrometer (TOF-MS) with laser ionization (LI) was applied to the identification of molecules from sulphur and chlorine matrices in the furnace. An interface was developed ...Read more
Author:Willers, Cornelius JDate:Sep 2009From its humble beginnings in an optical workshop in the Mowbray office for Triangulation in the 1930s and the subsequent formation of the Division for Optics and Spectroscopy at the National Physical Research Laboratory within the CSIR during ...Read more
Author:Moraal, H; Britton, D; Derry, T; Forbes, A; Grayson, D; Mullins, S; Scholtz, F; Sefako, RDate:2009The chapter is about physics and astronomy. The chapter gives a background about the origins of physics in South Africa. After the CSIR was founded in 1945, physics emerged as a nationwide and unified discipline. The authors show how physics ...Read more
Author:Ombinda-Lemboumba, Saturnin; du Plessis, A; Botha, LR; Rohwer, EG; Steenkamp, CMDate:Oct 2010The ultrafast dynamics of Zinc Phthalocyanine was studied using trasient absorption pump probe spectroscopy. Zinc Phthalocyanine was excited (pumped) at 672nm and probed by a white light continuum. The pump-probe technique used in this study ...Read more
Author:Gregory, MA; Brouckaert, CJ; McClurg, TPDate:2005Surveys that monitor pollution in a marine environment often include the measurement of heavy metals and other trace elements in sediments obtained from multiple stations near marine outfalls. This study investigates the use of energy-dispersive ...Read more