Now showing items 1-10 of 25
Digital, statistical and wavelet study of turbulence flow structure in laboratory plunging water waves.
This dissertation presents an experimental investigation set out to study the evolution of turbulence in laboratory generated breaking water waves. The waves propagate and break as plunging waves on a 1:20 sloping beach. ...
Generation and detection of bessel beams.
In this dissertation we study the properties of Bessel-Gauss beams. Bessel-Gauss beams are created by the interference of plane waves lying on a cone, and have unique properties: they propagate without spreading and ...
An investigation of the efficiency of the receiver of a solar thermal cooker with thermal energy storage.
A small scale solar concentrator cooker with a thermal energy storage system was designed, constructed and tested on the roof of the Physics building at UKZN, Westville campus (GPS co-ordinates: -29.817897, 30.942771) ...
Construction and analysis of the receiver for a solar thermal cooker system.
One of the key components in a solar thermal cooker system is the receiver since the performance of the receiver greatly affects the entire system. Absorption of the maximum amount of reflected radiation is crucial for ...
Structure and bi-magnetism of nanocomposites and nanoalloys synthesized by reduction of (Co, Ni) Fe2O4 nano-ferrites.
Structural and magnetic properties of CoFe2O4, NiFe2O4 nano-ferrites, CoFe2O4 /CoFe2, NiFe2O4/NiFe bi-magnetic nanocomposites and CoFe2, NiFe alloys were studied. The nano-ferrites were synthesised using the glycol-thermal ...
Applications of digital holograms for the selection and detection of transverse laser modes.
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, ...
Measurement and modelling of the directional scattering of light.
The quantum nature of light suggests that a photon can interact with matter in two primary ways. Firstly and perhaps more simply, the photon could be absorbed or secondly and more complex, it could be scattered into a ...
An investigation of electric-field-gradient-induced Birefringence in fluids.
The theory of electric-field-gradient-induced birefringence (EFGIB, the Buckingham effect) is briefly reviewed, and modifications to the Buckingham-effect apparatus are described. These modifications have increased the ...
Bulk heterojunction organic solar cell.
The low material costs and the ease fabrication procedures of organic solar cells has earned them too much interest from scientists all over the world. Much of the e orts were given to the improvement of the power ...
Computer-aided diagnosis in mammography : correlation of regions in multiple standard mammographic views of the same breast.
Abstract available in PDF file.