Browsing Faculty of Natural Sciences by Title
Now showing items 989-1008 of 2571
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Grafting an ATM network onto an existing ethernet network
(Telkom, 1998)Grafting an ATM network onto an existing Ethernet network is a non-trivial exercise in network configuration. The process of mating ATM technology to an Ethernet network without tampering the underlying backbone and network ... -
Grain structure orientational change in Ti6Al4V alloys induced by sea water quenching and novel stress relief annealing process
(Materials Chemistry and Physics, 2023)We report on the microstructures and properties of Ti6Al4V alloys, which were achieved upon quenching in sea water medium with potential high cooling rate. The Ti6Al4V alloys were quenched at 1000 and 1100 ◦C, respectively. ... -
Granny gets smarter but junior hardly notices
(College of Communication and Information, 2016)To ensure that university computing students are sensitized to the needs of diverse user groups, a course project was designed to allow students to get a realistic understanding of the needs and abilities of the older ... -
Graphite-anchored lithium vanadium oxide as anode of lithium ion battery
(Elsevier, 2013)Graphite-anchored lithium vanadium oxide (Li1.1V0.9O2) has been synthesized via a “one-pot” in situ method. The effects of the synthesis conditions, such as the ratio of reaction components and calcination temperature, ... -
Graphs, designs and codes related to the n-cube
(Elsivier, 2009)For integers n 1; k 0, and k n, the graph k n has vertices the 2n vectors of Fn 2 and adjacency defined by two vectors being adjacent if they differ in k coordinate positions. In particular 1 n is the ... -
Gravitational signal propagation in the double pulsar studied with the MeerKAT telescope
(Hans Publishers, 2022)The double pulsar PSR J0737−3039A/B has offered a wealth of gravitational experiments in the strong-field regime, all of which general relativity has passed with flying colours. In particular, among current gravity ... -
Gravitational wave mergers as tracers of large scale structures
(IOP Publishing Ltd, 2021)Clustering measurements of Gravitational Wave (GW) mergers in Luminosity Distance Space can be used in the future as a powerful tool for Cosmology. We consider tomographic measurements of the Angular Power Spectrum of ... -
Green method synthesised graphene-silver electrochemical nanobiosensors for ethambutol and pyrazinamide
(MDPI, 2020)A novel nanobiosensor was constructed with graphene oxide (GO) sheets coupled to pear extract-based green-synthesised silver nanoparticles (Ag-NPs) to which cytochrome P450-2D6 (CYP2D6) enzyme was attached. The biosensor ... -
Green nanotechnology as an innovative drug delivery approach for typha capensis and naringenin—new class of phytochemical embedded biocompatible gold nanoparticles in prostate cancer therap
(Journal of Drug Delivery Science and Technology, 2022)Naringenin, a flavone with a growing body of evidence as an anti-cancer agent, is found in Typha capensis, an indigenous South African plant commonly used in traditional medicine. However, despite favourable in vitro ... -
Green synthesis of crystalline silica from sugarcane bagasse ash: Physico-chemical properties
(MDPI, 2022)Sugarcane bagasse South Africa is an agricultural waste that poses many environmental and human health problems. Sugarcane bagasse dumps attract many insects that harm the health of the population and cause many diseases. ... -
Green synthesis of iron oxide (hematite) nanoparticles and their influence on sorghum bicolor growth under drought stress
(MDPI, 2023)Drought is a major abiotic stress that confronts plant growth and productivity, thus compromising food security. Plants use physiological and biochemical mechanisms to cope with drought stress, but at the expense of ... -
Green synthesis of metallic nanoparticles using some selected medicinal plants from Southern Africa and their biological applications
(MPDI, 2021)The application of metallic nanoparticles (MNPs), especially that of silver, gold, cobalt, and zinc as antimicrobial, anticancer, drug delivery, contrast, and bioimaging agents has transformed the field of medicine. Their ... -
Green synthesis of metallic nanoparticles using some selected medicinal plants from southern africa and their biological applications
(MDPI, 2021)The application of metallic nanoparticles (MNPs), especially that of silver, gold, cobalt, and zinc as antimicrobial, anticancer, drug delivery, contrast, and bioimaging agents has transformed the field of medicine. Their ... -
Green synthesis of silica and silicon from agricultural residue sugarcane bagasse ash – A mini review
(Royal Society of Chemistry, 2023)Silicon dioxide (SiO2), also known as silica, has received attention in recent years due to wide range of capable applications including biomedical/pharmaceutical, energy, food, and personal care products. This has accelerated ... -
Green synthesized saunps as a potential delivery platform for cytotoxic alkaloids
(MDPI, 2023)The use of natural products as chemotherapeutic agents is well established. However, many are associated with undesirable side effects, including high toxicity and instability. Previous reports on the cytotoxic activity ... -
Green tea (Camellia sinensis) aqueous extract improved human spermatozoa functions in vitro
(ResearchGate, 2022)Background: Idiopathic causes of infertility is associated with oxidative stress. Antioxidants are known to scavenge the excessive production of reactive oxygen species (ROS). Green tea (Camellia sinensis) contains polyphenols ... -
Green tea consumption increases sperm concentration and viability in male rats and is safe for reproductive, liver and kidney health
(Springer Nature, 2020)Green tea is a popularly consumed beverage worldwide and contains polyphenols, whose antioxidant activities could improve sperm parameters and fertility thereof. We investigated the effect of green tea on the male rat ... -
Green-synthesized zinc oxide nanoparticles mitigate salt stress in sorghum bicolor
(MDPI, 2022)Salinity is an abiotic stress that is responsible for more than 50% of crop losses worldwide. Current strategies to overcome salinity in agriculture are limited to the use of genetically modified crops and chemicals ... -
Ground-based Ku-band microwave observations of ozone in the polar middle atmosphere
(Copernicus Publications, 2021)Ground-based observations of 11.072 GHz atmospheric ozone (O3) emission have been made using the NyÅlesund Ozone in the Mesosphere Instrument (NAOMI) at the UK Arctic Research Station (latitude 78 550000 N, longitude 11 ... -
Groundwater discharges to aquatic ecosystems associated with the Table Mountain Group (TMG) aquifer: a conceptual model
(Water Research Commission, 2008)This paper reports on a conceptual model that was developed to describe the different groundwater discharge ‘types’ from the Table Mountain Group (TMG) aquifer, that contributes to the different components of the flow ...