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Now showing items 11-20 of 25
A Stand-Alone 'Self-Locking' Laser
This dissertation presents a stand-alone ’self-locking’ laser. The aim of the project was to develop a prototype of a ’self -locking’ laser that requires no user input, other than to turn the laser on. The prototype was ...
Theoretical and Experimental Investigations of Transient Rayleigh-Bénard-Marangoni Convection Enhanced Mass Transfer
Convection due to the Rayleigh and Marangoni effects is known to enhance heat and/or mass transfer between two phases by as much as an order of magnitude in industrially important processes. In gas-liquid solute transfer ...
Techniques to Determine Quiet Day Curves for Subionospheric VLF Observations
The ionization rate of the upper atmosphere can be significantly increased by space weather events, examples being solar proton events (SPE), solar flares, and energetic electron precipitation from the radiation belts. An ...
A Low-Temperature Study of Geared Refrigerative Dehumidification
High indoor humidity is a leading cause of degradation of the interior of buildings [1], [2] and promotes an unhealthy environment for the occupants [1], [3], [4]. Domestic refrigerative dehumidifiers are employed by 25% ...
Power Efficient, Telemetry-Enabled Position Sensor for Animal Tracking
This thesis describes the design, development and characterisation of an animal position sensor system. It focuses on the implementation of a telemetry system capable of retrieving position data wirelessly.
The position ...
An investigation into the meat processing waste biorefinery: design, integration and optimisation
In recognition of the possibility of utilising biomass waste streams as sustainable carbon resources and thus reduce society’s dependence on non-renewable carbon sources, the application of the biorefinery concept has been ...
Tight-binding methods for overdamped Brownian motion and their application to molecular motors
Biomolecular motors are molecules that transform energy to perform physiological functions. The operation of molecular motors has a number of interesting physical properties that have attracted a great deal of investigation. ...
Winter Sea Ice Growth in McMurdo Sound, Antarctica
Winter sea ice growth determines not only the ice thickness, but also important properties such as salinity, and changes in structure such as platelet ice growth. However, there are few direct measurements of ice growth ...
Fluctuations in Spin-1 Bose-Einstein Condensates
Ultra-cold spinor Bose gases present rich physics due to the special combination of superfluidity and magnetism in a quantum system. This system was first realized in 1998 by confining a Bose-Einstein condensate in an ...
Investigation of first and second order correlation functions of ultra-cold atomic gases
In the first part of the thesis we develop a theoretical description of the correlations between ultra-cold bosons after free expansion from confinement in an optical lattice. We describe the single particle evolution of ...