Browsing School of Chemistry and Physics by Title
Now showing items 233-252 of 656
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Identification and quantification of chelidonic acid and other ligands with potential for Ni uptake in the hyperaccumulator, Berkheya coddii.
(2014)B. coddii is a known nickel hyperaccumulator, a plant that is able to take up high levels of Ni (< 37 000 mg kg -1) without exhibiting toxic effects. It grows in serpentine soil and is endemic to the Barberton Region, ... -
Imidazolium, phosphonium and pyridinium ionic liquids with flourinated anions : synthesis characterization and applications.
(2013)Four sets of ionic compounds were synthesized, each with an organic spacer between two ligands creating a dication with the bromide as the counter anion. In each of the sets of ionic compounds, the counter anion was ... -
Immunological studies of thymine dimer quantitation.
(1992)Ultraviolet irradiation of DNA induces the formation of a number of mutagenic lesions. The most prolific of these is the cis-syn thymine dimer (formed maximally at 260 nm) and this has been implicated in the reaction ... -
The implementation of polarisation encoded quantum key distribution in fibre.
(2012)Quantum Key Distribution (QKD) employs the laws of quantum mechanics for the purpose of cryptography. Two parties, commonly called Alice and Bob, are able to share a random key which is used to encrypt a message. Any ... -
Implementing Grover's search algorithm using the one-way quantum computing model and photonic orbital angular momentum.
(2011)Standard quantum computation proceeds via the unitary evolution of physical qubits (two-level systems) that carry the information. A remarkably different model is one-way quantum computing where a quantum algorithm is ... -
The incorporation of impurities into sucrose crystals during the crystallisation process.
(1998)The main objective of this work is to propose a mechanism for the transfer of impurities into the sucrose crystal. To this end the transfer of impurities into the sucrose crystal was investigated, under crystallisation ... -
Influence of bridging groups on the reactivity of dinuclear platinum (II) complexes with bis(2-pyridylmethyl)amine chelate headgroups.
(2009)The influence on the reactivity of both the length as well as the structural nature of diamine bridges linking dinuclear Pt(II) complexes with homotopic bis(2-pyridylmethyl)amine headgroups has been investigated. For this ... -
Influence of concentration on properties of spray deposited nickel oxide films for solar cells.
(Elsevier., 2017)Spray pyrolysis technique was used to deposit various concentration of nickel oxide films on glass substrate. The Effect of varying precursor concentration on elemental, morphological and structural properties was ... -
The influence of metal oxide transport layer and annealing temperature on perovskite solar cells (PSCs)
(2021)Organic-inorganic halide Perovskite Solar Cells (PSCs) are the leading third-generation solar cells with the possibility to provide a fraction of green and affordable energy in the next technological era of solar energy. ... -
The influence of physicochemical reaction parameters on the synthesis of multi-walled carbon nanotubes for use as catalyst supports.
(2012)Multi-walled carbon nanotubes (MWCNTs) and other shaped carbon nanomaterials (SCNMs) were synthesized by the floating catalyst chemical vapour deposition (CVD) method, using either ferrocene [1] as the catalyst at 2.5 ... -
The influence of rotating and locked magnetic islands on edge transport in Tokoloshe tokamak.
(1993)The turbulence and fluctuation induced transport in the edge plasma of the Tokoloshe tokamak was studied using a Langmuir probe array. In this thesis three separate experiments are presented, each of which examines a ... -
The influence of surfactants on the solubility of acenaphthene and phenanthrene and their extraction from spiked soils.
(2005)In the first phase of the study, the effect of five Safol surfactants on the aqueous solubility of phenanthrene and acenaphthene was determined. The fixed variables were temperature and ionic strength, while surfactant ... -
An instrumental evaluation of selected metal functionalised semiconductors in the facilitation of photo-organic transformations.
(2019)Throughout this research study, various strategies to design, synthesise and test the photo-reactivity of attenuated wide band gap semiconductors in alcohol oxidation studies have been explored. An alizarin red-sensitised ... -
An interferometric investigation of the quadratic electro-optic effect in KDP.
(1995)Abstract available in PDF. -
Interferometric measurement of induced birefringence in polycrystalline ZnSe.
(2011)The aim of this research project was to assemble an apparatus capable of measuring field-induced birefringence in polycrystalline ZnSe. A Michelson interferometric apparatus was assembled, and care was taken to actively ... -
Invariant multipole theory of induced macroscopic fields in homogenous dielectrics.
(2013)A harmonic plane electromagnetic wave incident on a molecule distorts its charge distribution, thereby producing an infinite series of induced multipole moments expressed in terms of contributions that are due to the ... -
Investigating the pathway and fate of inorganic impurities in a bisulfite dissolving pulp production process.
(2011)This study sought to investigate the pathway and fate of metals and Si in a bisulfite pulp production process, at the same time providing a means to mitigate on the residual metals bound in the final pulp. The metals ... -
Investigating the standard method used by Umgeni Darvill Waste Water Works for the determination of pseudo total metal concentrations in their sewage sludge.
(2016)Abstract available in PDF file. -
An investigation in the use of satellite data to develop a geomagnetic secular variation model over Southern Africa.
(2011)Time variations of the geomagnetic field can be classified into two main categories of internal and external origin with respect to the surface of the Earth. It has been found that the variations that take place on longer ...