Browsing School of Chemistry and Physics by Title
Now showing items 21-40 of 700
-
Analytical and biochemical studies of selected seaweeds obtained from the eastern coast of South Africa`s Indian Ocean in KwaZulu-Natal.
(2015)Abstract available in PDF file. -
Antidiabetic compounds from Hypoxis colchicifolia and Terminalia sericea.
In this project two medicinal plant species, namely Hypoxis colchicifolia Bak (Hypoxidaceae) and Terminalia sericea Burch. (Combretaceae), have been investigated and different compounds isolated and characterised. The aim ... -
Antioxidant activity of Maillard reaction products.
(1994)The use of natural antioxidants to improve the oxidative stability of food lipids has received special attention because of the worldwide trend to avoid the use of synthetic food additives. A wide range of natural sources ... -
Application of analytical chemistry and waste minimisation techniques in a paint drier plant.
(2009)Environmental sustainability, strict Municipal bylaws, ever-increasing waste disposal -
Application of analytical chemistry to waste minimisation in the powder coating industry.
(2005)A local company instituted a new chemical procedure in their spray phosphating system used in the pretreatment of large components for industrial racking systems. An inorganic conversion coating is deposited on the ... -
Application of chemical analysis as an aid to waste minimisation in the electroplating industry.
(2009)A chromium plating line used by a local company was monitored to identify any potential waste minimisation opportunities. Plating of the workpiece surface is carried out by immersing the workpiece in seven process (treatment) ... -
Application of cobalt complexes containing SNS ligands as catalysts for biomimetic paraffin activation.
(2012)A series of SNS ligands have been successfully synthesised and characterised by IR, NMR and MS. The ligands are divided into two groups and represented by the general formulae: 2,6- bis(RSCH2)pyridine [R= methyl, ethyl, ... -
Application of metallocenes for the synthesis of multiwalled carbon nanotubes.
(2016)Abstract available in PDF file. -
An application of modern analytical solution techniques to nonlinear partial differential equations.
(2014)Many physics and engineering problems are modeled by differential equations. In many instances these equations are nonlinear and exact solutions are difficult to obtain. Numerical schemes are often used to find approximate ... -
Application of N-doped TiO₂/Bi₂O₃/rGO nanocomposites as a photoanode material in dye- sensitized solar cells.
(2021)Abstract available in PDF. -
The application of organically modified heterogeneous catalysts in continious flow hydrogenation reactions.
(2013)No abstract available. -
The application of semiconductors as oxidants in synthetic organic chemistry.
(2012)Oxidation of alcohols is a vital transformation in synthetic organic chemistry as evidenced by their numerous applications in natural product synthesis. However, the traditional oxidants employ hazardous, toxic and ... -
Application of the Noyori annulation reaction to the cephalotaxine spirocycle.
(2001)Cephalotaxine is a naturally occurring alkaloid which is the structural motif of a number of compounds which have shown promising anti-cancer properties. This fact together with its relatively complex pentacyclic structure, ... -
Application of triazolium-based metal complexes for catalytic oxidation of octane.
(2014)A series of related 1,2,3-triazole compounds were synthesised and characterised by spectroscopic methods including NMR, IR, MS and X-ray diffraction. N-alkylation of the triazole compounds yielded 1,4-disubstituted triazolium ... -
The application of “PNP” aminodiphosphine complexes in the oxidation of n-octane and styrene.
(2015)The oxidation of hydrocarbons provides a cost effective method of converting cheap starting material to bulk chemicals and more importantly in the synthetic transformation to fine chemicals. Transition metals effectively ... -
Applications of digital holograms for the selection and detection of transverse laser modes.
(2014)The transverse mode of generally available commercial lasers in most instances is not suitable for desired applications. Shaping the laser beam either extra-cavity, that is outside the laser resonator, or intra-cavity, ... -
Applications of Lie symmetry analysis to the quantum Brownian motion model.
(2008)Lie symmetry group methods provide a useful tool for the analysis of differential equations in a variety of areas in physics and applied mathematics. The nature of symmetry is that it provides information on properties ... -
Applications of light scattering and refraction by atmospheric gases.
(2002)LIDAR, an acronym for LIght Detection And Ranging, is a system used for studying the scattering of laser light incident on a parcel of air. This thesis investigates the atmosphere above the Durban region using two ... -
An approach to the synthesis of chiral carbamates.
(1996)An attempt to obtain chiral induction across the carbamate linkage (-NCOO-), using chiral amines and the benzyl carbamate, was embarked upon. Initial studies centred around the benzyl carbamate protected form of ...