Author:Davis, CL; Hoffman, MT; Roberts, WDate:Jul 2017Vegetation monitoring of arid and semi-arid environments using remotely sensed vegetation indices over long periods of time is essential to improve the understanding of the processes related to change. In this paper, 30 years of biweekly AVHRR ...Read more
Author:Scott, DF; Prinsloo, FWDate:Oct 2008The longer-term effects of afforestation with Pinus radiata and Eucalyptus grandis on streamflows were analyzed using data from two paired-catchment experiments in South Africa. The experiments are rare in that they have been maintained over ...Read more
Author:Fedotov, IA; Polyanin, AD; Shatalov, M; Tenkama, EMDate:2010In this work, for analyzing the longitudinal vibrations of a conic rod, the authors used the Rayleigh–Bishop model, which generalizes the Rayleigh model and takes into account both lateral displacements and the shear stress in the transverse ...Read more
Author:Ramson, SRJ; Vishnu, S; Kirubaraj, AA; Anagnostopoulos, T; Abu-Mahfouz, Adnan MIDate:Feb 2022Municipal solid waste management remains a major problem in urban areas, leading to serious health and environmental issues.Consequently, trash bins are placed in many places to handle the municipal solid waste, but these bins can overflow, ...Read more
Author:Milman, YV; Chugunova, S; Goncharuck, V; Luyckx, S; Northrop, ITDate:1997The paper reports hardness measurements on WC-6 wt%Co of three different grain sizes in the temperature range from -196 to 900 degrees C. Coarser grades have been found to soften with increasing temperature at a higher rate than finer grades. ...Read more
Author:Land, K; Mbanjwa, MB; Govindasamy, K; Korvink, JGDate:Sep 2011A method to easily manufacture and assemble a polydimethylsiloxane (PDMS) based microfluidic device is described. The method uses low cost materials and reusable laser cut polymethyl methacrylate (PMMA) parts. In addition, the thickness of ...Read more
Author:Apps, PDate:Jun 2006Natural materials are so complex that no single column can separate all of the components. Heart cutting 2-D GC (GC-GC) using a Deans switch provides maximum separation, but the requisite gas flow configurations have earned a reputation for ...Read more
Author:Bhaumik, M; Maity, Arjun; Mahule, TS; Srinivasu, VVDate:Mar 2019Low field microwave absorption (LFMA) in conducting polymers is completely different as compared to magnetic systems and is very intriguing. To understand LFMA phenomenon in the conducting polymers, we studied LFMA in the conducting polyaniline ...Read more
Author:Smakhtin, VUDate:10 Jan 2001The paper intends to review the current status of low-flow hydrology — a discipline which deals with minimum flow in a river during the dry periods of the year. The discussion starts with the analysis of low-flow generating mechanisms operating ...Read more
Author:Onumanyi, Adeiza J; Abu-Mahfouz, Adnan MI; Hancke, GPDate:Nov 2020The Internet of Things (IoT) is an emerging paradigm that enables many beneficial and prospective application areas, such as smart metering, smart homes, smart industries, and smart city architectures, to name but a few. These application ...Read more
Author:Nithyadharseni, P; Reddy, MV; Ozoemena, KI; Balakrishna, RG; Chowdari, BVRDate:Oct 2015For the first time, yttrium tin oxide (Y(sub2)Sn(sub2)O(sub7)) compound is prepared at low temperature (400 _C) with cubic pyrochlore structure via molten salt method using KOH as a flux for their electrochemical applications. The final product ...Read more
Author:Karem, TR; Chan, HADate:Jul 2007This study investigates the problem of ring-node assignment in a Multiservice SDH/SONET Optical network design with Network capacity constraint. The problem is characterized as a graph-partitioning problem, and a heuristic algorithm based on ...Read more
Author:Babajide, O; Petrik, L; Amigun, B; Ameer, FDate:Oct 2010Biodiesel has attracted increasing interest and has proved to be a good substitute for fossil-based fuels due to its environmental advantages and availability from renewable resources such as refined and waste vegetable oils. Several studies ...Read more
Author:Woodborne, S; Vogel, JCDate:Oct 1997Deal with infrared-stimulated luminescence and thermoluminescence dates from Rose Cottage Cave in South Africa. Discrepancy between luminescence and radiocarbon dates; Concentration of radioactive elements in sediments before and after leaching ...Read more
Author:Mhlongo, Gugu H; Dhlamini, MS; Ntwaeaborwa, OM; Swart, HC; Hillie, KTDate:Feb 2014Luminescence properties of Pr(sup3+) single doped SiO2 and Pr(sup3+) co-doped SiO(sub2):Tb(sup3+)/Eu(sup3+) nanophosphors synthesized using sol–gel method were investigated. X-ray diffraction (XRD), and scanning electron microscope (SEM) were ...Read more
Author:Raleaooa, PV; Roodt, A; Mhlongo, Gugu H; Motaung, David E; Kroon, RE; Ntwaeaborwa, OMDate:Feb 2017The structure, particle morphology, optical and magnetic properties of ZnO, ZnS and ZnO-ZnS nanoparticles prepared by the sol-gel method are reported. ZnO and ZnS were combined at room temperature by an ex situ synthetic route to prepare ...Read more
Author:Naidoo, Laven; Main, Russell S; Cho, Moses A; Madonsela, Sabelo; Majozi, Nobuhle, PDate:Jan 2022Maize has been identified as a strategic commodity for the reduction of poverty and enhancement of food security in the African continent. Climate variability and difficult economic conditions are pressuring farmers to produce higher (maize) ...Read more