Author:Grzeskowiak, V; Hanuman, A; Andrew, JDate:2011Environmental scanning electron microscopy coupled with energy dispersive x-ray (ESEM/EDX) was optimised to measure the penetration and diffusion of cooking liquor into Eucalyptus grandis wood chips during kraft pulping. The moisture content ...Read more
Author:Brown, Dane; Bradshaw, KDate:May 2016There are a lack of multi-modal biometric fusion guidelines at the feature-level. This paper investigates face and fingerprint features in the form of their strengths and weaknesses. This serves as a set of guidelines to authors that are ...Read more
Author:Du Plessis, A; Rohwer, EG; Steenkamp, CMDate:2007The four carbon monoxide (CO) isotopomers 12C16O, 13C16O, 12C18O and 12C17O have been detected simultaneously in a CO gas sample of natural isotopic abundance by measuring rovibronic excitation spectra of six vibronic bands in the Fourth ...Read more
Author:Folorunso, O; Hamam, Y; Sadiku, R; Adekoya, GJ; Ray, Suprakash SDate:Apr 2020The discredit state of lithium-ion (Ln) battery is as a result of the challenges associated with electrodes, inadequate power and energy densities. For a battery to be classified as suitable for electric vehicle and grid power suppliers, ...Read more
Author:Shatalov, MY; Joubert, SV; Voges, EDate:Jul 2007Vibrating patterns of distributed oscillating structures, subjected to rotation, also turn in the direction of inertial revolution but with different angular rates, which depend on the geometry of the structures, the number of modes, etc. ...Read more
Author:Kumar, R; Kumar, R; Ofosu, ODate:Oct 2015The commodity articles from polyethylene (PE) and polypropylene (PP) are widely used in today’s world. To reduce the carbon footprint, biopolymers such as polylactic acid (PLA) as commodity plastics are also explored. Often, these polymers ...Read more
Author:Padayachi, YR; Thambiran, Tirusha; Naidoo, M; Garland, Rebecca M; Phala, NDate:Oct 2014A study of ozone monitoring data in Johannesburg highlighted that the city is frequently affected by high ozone episodes. There is limited knowledge about the chemical and meteorological drivers of these high ozone episodes in Johannesburg. ...Read more
Author:Padayachi, YR; Thambiran, Tirusha; Naidoo, M; Garland, Rebecca M; Phala, NDate:Oct 2014A study of ozone monitoring data in Johannesburg highlighted that the city is frequently affected by high ozone episodes. There is limited knowledge about the chemical and meteorological drivers of these high ozone episodes in Johannesburg. ...Read more
Author:Kathree, U; Nel, Willem AJ; Van Rensburg, VJ; Mishra, AKDate:Oct 2015In the field of radar, High Range Resolution (HRR) profiles are often used to improve target tracking accuracy in range and to allow the radar system to produce an image of an object using techniques such as inverse synthetic aperture radar ...Read more
Author:Roberts, DE; Du Plessis, A; Steyn, J; Botha, LR; Pityana, Sisa L; Berger, LRDate:Jul 2012Laser Induced Breakdown Spectroscopy (LIBS) was used to study the spectra from fossils and surrounding rock recovered from the Cradle of Mankind site at Malapa, South Africa. The objective was to find a suitable spectral line(s), specific to ...Read more
Author:Belyi, VN; Kazak, NS; Khilo, NA; Forbes, A; Ropot, PIDate:Aug 2009The spectrum of spatial frequencies (SFS) of Bessel beams properties emerging at their spatial localization is investigated. The case, when limiting aperture has a circular shape and a center at any distance from the optical axis, was studied. ...Read more
Author:Lekoadi, Paul M; Maledi, N; Tlotleng, Monnamme; Masina, Bathusile NDate:Feb 2020The investigation of microstructural and hardness properties of high-speed selective laser melted (SLM) produced Ti6Al4V coupons after various heat treatments. Heat treatment was performed in order to homogenize and improve the microstructure ...Read more
Author:Lekoadi, Paul M; Maledi, N; Tlotleng, Monnamme; Masina, Bathusile NDate:Nov 2018This study presents an investigation of the effect of different heat treatments on the microstructure of Ti6Al4V fabricated components produced by high speed selective laser melting. 10 mm x 10 mm x 10 mm cubes were heat treated in an inert ...Read more
Author:Copeman, JH; Von Wolff, WTEDate:1965Because of the effect of inorganic impurities on the utilization of coal, it was decided to carry out a survey on the minerals present in production samples from different mines.Read more
Author:Vallabh, Bhavya; Skews, BWDate:Sep 2017The existing nozzle contour profiles of the CSIR’s supersonic or High Speed Wind Tunnel (HSWT) produce weak waves in the test section region, which effectively degrades the air flow quality in the test section. This paper describes a calculation ...Read more
Author:Sprung, D; Sucher, E; Ramkilowan, A; Griffith, DJDate:Sep 2014Optical turbulence represented by the structure function parameter of the refractive index C(subn)(sup2) is a relevant parameter for the performance of electro-optical systems and characterization of the atmospheric influence on imaging. It ...Read more
Author:Gayathri, S; Ghosh, OSN; Sathishkumar, S; Sudhakara, S; Jayaramudu, J; Ray, SS; Viswanath, AKDate:Dec 2015In this report we have demonstrated the synthesis of silver doped and pure ZnO nanoparticles using facile chemical precipitation method. The crystal structure, optical and magnetic properties of the synthesized nanocrystals were determined ...Read more