Faculty of Natural Sciences: Recent submissions
Now showing items 1041-1060 of 2641
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HYDRIDE4MOBILITY: An EU horizon 2020 project on hydrogen powered fuel cell utility vehicles using metal hydrides in hydrogen storage and refuelling systems
(Elsevier, 2021)The goal of the EU Horizon 2020 RISE project 778307 “Hydrogen fuelled utility vehicles and their support systems utilising metal hydrides” (HYDRIDE4MOBILITY), is in addressing critical issues towards a commercial ... -
Static reservoir modeling using stochastic method: A case study of the cretaceous sequence of Gamtoos Basin, Ofshore, South Africa
(Springer, 2021)Gamtoos Basin is an echelon sub-basin under the Outeniqua ofshore Basin of South Africa. It is a complex rift-type basin with both onshore and ofshore components and consists of relatively simple half-grabens bounded by ... -
Impacts of an invasive alien Proteaceae on native plant species richness and vegetation structure
(South African Journal of Botany, 2021)The influence of invasive alien plants on plant community structure and above ground biomass in their novel range is poorly understood, as the magnitude and direction of these effects are often species and ecosystem specific. ... -
Crystal structure of 2,2′-(propane- 1,3-dilylbis(azaneylylidene))bis(methanylylidene) bis(4-methylphenol), C19H22N2O2
(De Gruyter, 2021)C19H22N2O2, monoclinic, P21/c (no. 14), a = 19.3063(4) Å, b = 5.83200(10) Å, c = 14.7996(3) Å, β = 92.715(1)°, V = 1664.48(6) Å3, Z= 4, Rgt(F) = 0.0423, wRref (F2) = 0.1102, T = 100(2) K. -
1D NiHPO4 nanotubes prepared using dissolution equilibrium as bifunctional electrocatalyst for high-efficiency water splitting
(Journal of Power Sources, 2021)In this work, one-dimensional NiHPO4 nanotubes are successfully fabricated on nickel foam by hydrothermal reaction, in which a dissolution equilibrium between phosphates is controlled by tuning the proportion of the mixed ... -
The H I intensity mapping bispectrum including observational effects
(2021-07-30)The bispectrum is a three-point statistic with the potential to provide additional information beyond power spectra analyses of survey data sets. Radio telescopes that broadly survey the 21-cm emission from neutral hydrogen ... -
Polyphase deformation of the high-grade metamorphic rocks along the Neusspruit shear zone in the Kakamas domain: Insights into the processes during the Namaquan orogeny at the eastern margin of the Namaqua metamorphic province, South Africa
(MPDI, 2021)The central part of the Namaqua Metamorphic Province was subjected to intense deformation under high-grade metamorphic conditions up to granulite facies, but also shows greenschist facies overprints denoting the metamorphic ... -
On soft quasi-pseudometric spaces
(Elsevier, 2021)In this article, we introduce the concept of a soft quasi-pseudometric space. We show that every soft quasi-pseudometric induces a compatible quasi-pseudometric on the collection of all soft points of the absolute soft ... -
Carbon futures trading and short-term price prediction: An analysis using the fractal market hypothesis and evolutionary computing
(MPDI, 2021)This paper presents trend prediction results based on backtesting of the European Union Emissions Trading Scheme futures market. This is based on the Intercontinental Exchange from 2005 to 2019. An alternative trend ... -
The impact of active and passive thermal management on the energy storage efficiency of metal hydride pairs based heat storage
(MPDI, 2021)Two-tank metal hydride pairs have gained tremendous interest in thermal energy storage systems for concentrating solar power plants or industrial waste heat recovery. Generally, the system’s performance depends on selecting ... -
Antennal enriched odorant binding proteins are required for odor communication in glossina f. Fuscipes
(MPDI, 2021)Olfaction is orchestrated at different stages and involves various proteins at each step. For example, odorant-binding proteins (OBPs) are soluble proteins found in sensillum lymph that might encounter odorants before ... -
Solid-phase synthesis of arylidene and alkylidene malonates, as versatile intermediates, catalyzed using mesoporous poly-melamine–formaldehyde as a nitrogen-rich porous organic polymer (POP)
(Springer, 2021-09)An efficient solid/slurry-state synthesis of arylidene and alkylidene malonates as versatile intermediates is developed in the presence of mesoporous poly-melamine–formaldehyde. The condensation reaction was conducted ... -
Fabrication of silver‑coated PET track‑etched membrane as SERS platform for detection of acetaminophen
(Springer, 2021-09)In this study, silver nanoparticles (AgNPs) were immobilized on the surface of polyethylene terephthalate (PET) membrane using diethylenetriamine (DETA) as a chemical linker. The molecule of DETA was attached to the surface ... -
Cyber physical systems dependability using cps-iot monitoring
(MPDI, 2021)Recently, vast investments have been made worldwide in developing Cyber-Physical Systems (CPS) as solutions to key socio-economic challenges. The Internet-of-Things (IoT) has also enjoyed widespread adoption, mostly for ... -
Corrigendum: Immunological changes during space travel: A ground-based evaluation of the impact of neutron dose rate on plasma cytokine levels in human whole blood cultures
(Frontiers Media, 2021)A better understanding of the combined impact of different space stressors on human health is urgently warranted, considering the upcoming long-duration missions beyond lower Earth orbit. Therefore, a growing number of ... -
Leptin deficiency, caused by malnutrition, makes you susceptible to sars-cov-2 infection but could offer protection from severe Covid-19
(American Society for Microbiology, 2021)In much of the developing world, severe malnutrition is the most prevalent cause of immunodeficiency and affects up to 50% of the population in some impoverished communities. As yet, we do not know how severe acute ... -
High-resolution insights into the in vitro developing blood-brain barrier: Novel morphological features of endothelial nanotube function
(Frontiers Media, 2021)High-resolution electron microscopy (HREM) imaging of the in vitro blood-brain barrier (BBB), is a promising modality for investigating the dynamic morphological interplay underpinning BBB development. The successful ... -
Tri-infection: Tuberculosis, HIV, COVID-19 and the already strained South African health system
(Elsevier, 2021)The 30th of May 2021 marks the latest significant national address, where President Cyril Ramaphosa moves the country back into level two lockdown with the hopes of curving the new COVID-19 surge while guarding an improving ... -
Evaluation of protein purification techniques and effects of storage duration on lc-ms/ms analysis of archived ffpe human crc tissues
(Frontiers Media, 2021)To elucidate cancer pathogenesis and its mechanisms at the molecular level, the collecting and characterization of large individual patient tissue cohorts are required. Since most pathology institutes routinely preserve ... -
Editorial commentary on draft of world health organization sixth edition laboratory manual for the examination and processing of human semen
(Korean Society for Sexual Medicine and Andrology, 2021)Semen examination is the cornerstone of the evaluation of male fertility potential. Despite its apparent simplicity, it is a complex series of assessments with highly variable results that are subject to interpretation. ...