Browsing School of Chemistry and Physics by Title
Now showing items 488-507 of 700
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Safety assessment of skin-lightening formulations commonly available in the Nigerian market.
(2016)Abstract available in PDF file. -
A satellite and ground based study of fine structure in VLF whistlers.
(1992)The matched filtering technique for improving the spectral resolution of VLF whistlers, originally developed by Bhegin and Siredey (1964), has proven to be useful for extracting information about the magnetospheric plasma ... -
Scope of microporous and mesoporous molecular sieves in the oxidation of higher alkanes with ozone
(2008)Alkane-rich fractions including n-paraffins are the most important chemical feedstock used in the -
Screening of water pollutants using metallophthalocyanine-based chemically modified electrodes.
(2021)Abstract available in PDF. -
Seasonal analysis of water and sediment along the Umgeni River, South Africa.
(2014)Increased pollution caused by industrialization, urbanization, afforestation and agriculture has resulted in severe reductions to the health of rivers in South Africa. Numerous studies carried out on South African rivers ... -
Second Kerr-effect virial coefficients of non-dipolar molecules with axial and lower symmetry.
(2016)Abstract available in PDF file. -
Security and entanglement in differential-phase-shift quantum key distribution.
(2009)Quantum key distribution (QKD) aims at the creation of a secret key in the two locations of partners, traditionally Alice and Bob, wishing to communicate in private. A generic QKD protocol utilises a quantum channel and ... -
Security in quantum key distribution protocols.
(2013)Quantum theory forms one of the most studied theories of nature. It has inevitably led to a number of different research areas. One of the breakthroughs was the development of quantum cryptography which now forms one of ... -
Sedimentation and chemical processes on the Lower Mkuze floodplain : implications for wetland structure and function
(2008)The Mkuze Wetland System, situated in northern KwaZulu-Natal, is South Africa’s largest freshwater wetland area. The system plays a vital role in the functioning of the local landscape and has been identified as an important ... -
Seed bank distribution and viability of selected Vachellia and Acacia species in KwaZulu-Natal, South Africa.
(2015)There is increasing concern regarding the impact of invasive alien plants (IAPs), where their spread is a serious threat to both the structure and functionality of ecosystems, which causes the loss of biodiversity. ... -
The selective hydrogenation of octanal in the presence of octene using y-alumina supported copper-silver bimetallic catalysts.
(2014)This work pertains to the selective hydrogenation of octanal in the presence of octene, which has applications in the hydroformylation process. The octanal should be hydrogenated to the desired product, octanol, while ... -
The selective oxidation of n-butane to maleic anhydride.
(2003)Industrial catalysts used in commercial processes for the production of maleic anhydride are mainly Vanadium Phosphorous Oxide (VPO) catalysts. The VPO catalyst used is Vanadyl Pyrophosphate (VO)2P207 made from its precursor ... -
Silver-catalysed hydroamination : synthesis of functionalised pyrroles.
(2004)The aim of this project was a broad one, namely to develop general methods for the preparation of nitrogen-containing heterocycles. This topic also encompasses the preparation of precursors to heterocycles with the goal ... -
Simple qubit systems in bosonic baths.
(2010)The study is focused on the thermal entanglement of spin chains. Chains consisting of two and three qubits are considered. These chains are considered open because they are coupled to bosonic baths at different temperatures. ... -
Simulating thermal fluctuations in soft matter models.
(2015)The research carried out in this work is in two parts: In the first part, we derive a configurational temperature Nosé-Hoover thermostat by reformulating the original Braga and Travis thermostat [J. Chem. Phys. 123 ... -
Single and double layer bulk heterojunction organic solar cell.
(2015)Bulk heterojunction photovoltaic device based on the binary organic comprised of P3HT:PCBM and PTB7:PCBM with weight ratio of 1:1 and 1:1.5 respectively. We used these blends as a photo-active layer with different ... -
Solar cells and global warming reduction.
(Research India Publications., 2018)This study proposes one way of addressing the issue of climate change and pollution using solar cells. The quality of life in developing and low-income countries is on the decline because of air pollution. Energy has a ... -
Solar influences on Polar ozone.
(1994)Measurements by the TOMS instrument aboard the Nimbus 7 satellite, of total column ozone over polar regions have been studied to determine the effects of solar induced natural ozone modulation. Two different analysis methods ...