Now showing items 1-10 of 82
A study of wave induced electron precipitation at low and middle latitudes.
Wave induced electron precipitation (WIEP) can modify the ionosphere above a sub-ionospherically propagating VLF signal in such a way as to perturb the amplitude and phase of the signal: The "Trimpi Event". In this ...
Linear and nonlinear fluctuations in electron-positron plasmas.
The behaviour of both small amplitude and arbitrary amplitude nonlinear electrostatic fluctuations are studied in electron-positron plasmas. The propagation characteristics of associated linear modes are also examined ...
First principles quantum mechanical studies of iridium : a focus on bulk and surface properties.
Recent high-pressure experiments on iridium show a transition to a 14 atomic layer superlattice structure. Since iridium has a high bulk modulus, it is used in many high-pressure applications, for instance as a gasket for ...
Theories and computation of second virial coefficients of electromagnetic phenomena.
Many bulk properties of gases depend linearly on the gas density at lower densities, but as the density increases departures from linearity are observed. The density dependence of a bulk property Q may often be discussed ...
On the interaction of laser beams with air : with specific reference to refraction and scattering.
The interaction of laser light with a parcel of air with a known density structure can result in one of three reactions. The simplest of these reactions is reflection. Depending on the nature of the density profile, that ...
Planetary waves and the global ozone distribution.
Planetary waves are known to play an important role in determining the annual variability in the severity of Antarctic ozone depletion. In this thesis, data obtained from the TOMS experiment on board the Nimbus-7 satellite ...
Refractive effects in phase objects and associated phenomena.
The effect of the refraction of a laser beam propagating through three different phase objects, i.e. a laser produced plasma and two different gas media, is investigated in this thesis. It is shown that these effects ...
Towards an objective interpretation of quanum mechanics.
Abstract on PDF file.
Velocity, vorticity and turbulence measurements in the surf zone.
The coastal regions of the world play a significant role with regards to social and economic development, and with the ever increasing human activities along the coast, it has become necessary to understand and protect ...