Browsing Physics by Title
Now showing items 76-95 of 218
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High repetition rate continuously tunable CO2 laser system investigation.
(1990)The purpose of this thesis was to investigate certain factors important for the operation of a high repetition rate continuously tunable CO2 laser. The tuning range of specific importance for this research program was ... -
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.
(2013-10-10)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 ... -
Influence of annealing on properties of spray deposited nickel oxide films for solar cells.
(Elsevier., 2017)Nickel oxide thin films were deposited on soda lime glass substrates by spray pyrolysis technique (SPT). Post-deposition annealing was carried out at 450 oC. Effects of annealing on the structural, elemental and surface ... -
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 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 ... -
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 ... -
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 ... -
Investigation of conceptual and language difficulties affecting the understanding of several mechanics concepts among some African teachers and students.
(1998)The results of national examination in matric and universities showed that African students were performing very poorly in their studies and examinations in science and in physics in particular. The objective in this ... -
An investigation of electric-field-gradient-induced Birefringence in fluids.
(2015-06-17)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 ... -
An investigation of gas lasers.
(1999)Pulsed lasers have a wide range of applications in industry, medicine and for scientific research. Many of these devices are expensive and have delicate optics. The nitrogen laser is robust and inexpensive to build and ... -
An investigation of high velocity flows in HF radar data during northward interplanetary magnetic field, non-substorm intervals.
(2010)Several previous studies, including one using early Sanae radar data, have found examples of high speed ionospheric plasma flows on the nightside, mapping to the magnetospheric tail, during periods which were magnetically ... -
An investigation of the efficiency of the receiver of a solar thermal cooker with thermal energy storage.
(2015-01-05)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) ... -
An investigation of the nature of Pc5 pulsations using SuperDARN and magnetometer data.
Pc5 pulsations are global magnetohydrodynamic events in the magnetosphere. We employed an Automated Pulsation Finder program to identify significant Pc5 pulsation events in SuperDARN data. Those events for which a resonance ... -
Investigation of the relationship between solar radiation and cloud cover using a total sky imager.
(2017)Solar radiometric studies have been done in South Africa, but no research studies have been performed to understand how the cloud fraction (CF) affects the amount of solar radiation received by radiometers. This work focused ... -
An investigation of ultra low frequency (ULF) pulsations using radar data and solar wind data.
(2010-09-10)An investigation of Ultra Low Frequency (ULF) pulsations was conducted using data -
Ionospheric signatures of solar flares.
(2009)VLF waves propagate in the Earth-ionosphere waveguide (EIW). The EIW is bounded below by the surface of the Earth and above by the ionospheric D-region (50–90 km altitude). The conditions for wave propagation in the EIW ... -
Kinematics and dynamics of the elliptical galaxy NGC 5266.
(2005)In studies of triaxial elliptical galaxies, one of the least observationally studied phenomena is figure rotation. Figure rotation has important consequences for the orbital structure and could explain the survival of steep ...