An x-ray diffraction study of the molecular morphology and structural transitions of DNA
Thesis
(1984). An x-ray diffraction study of the molecular morphology and structural transitions of DNA

X-ray fibre diffraction studies on the polymorphism of DNA and its synthetic analogues
Thesis
(1983). X-ray fibre diffraction studies on the polymorphism of DNA and its synthetic analogues

The known conformations of DNA are b r ie fly reviewed. Methods which are developed and used to prepare DNA fibres are described.
A left-handed model having 8 7 symmetry has been proposed in an attempt to explain the D-DNA diffraction pattern.
Co... Read More about X-ray fibre diffraction studies on the polymorphism of DNA and its synthetic analogues.

The infra-red astronomy of supernovae
Thesis
(1983). The infra-red astronomy of supernovae

The heating of circumstellar and interstellar dust grains of various types by extragalactic supernovae is investigated. Models to compute the infra-red flux from such dust grains are devised. The optical constants of different grain materials are ded... Read More about The infra-red astronomy of supernovae.

X-ray fibre diffraction studies of the effect of ions and small molecules on the structure of nucleic acids
Thesis
(1983). X-ray fibre diffraction studies of the effect of ions and small molecules on the structure of nucleic acids

Electron spectroscopic studies of slowly oxidised beryllium and magnesium surfaces
Thesis
(1981). Electron spectroscopic studies of slowly oxidised beryllium and magnesium surfaces

Electron-induced electron spectroscopic measurements on a Sb (100) crystal surface
Thesis
(1981). Electron-induced electron spectroscopic measurements on a Sb (100) crystal surface

The molecular beam maser employing quasi-optical resonators: oscillation behaviour and spectroscopic applications
Thesis
(1981). The molecular beam maser employing quasi-optical resonators: oscillation behaviour and spectroscopic applications

The spectroscopic and oscillation properties of the molecular Beam maser, employing quasi-optical resonators are investigated. A new type of cavity, the roof-top resonator, is introduced for molecular beam work. The theoretical discussion reveals tha... Read More about The molecular beam maser employing quasi-optical resonators: oscillation behaviour and spectroscopic applications.

Efficient digital techniques for speech processing
Thesis
(1982). Efficient digital techniques for speech processing

Computationally efficient digital signal processing algorithms suited for speech signals are investigated, A new efficient time domain algorithm for estimating the pitch period of voiced speech is presented.
This algorithm has no multiply operations... Read More about Efficient digital techniques for speech processing.

The application of code conversion techniques to digital audio systems
Thesis
(1982). The application of code conversion techniques to digital audio systems

The recent development of low cost digital storage has made digital audio systems attractive. However its popularity depends on the development of accurate low cost digital to analogue (D/A) converters. Existing converters require the fabrication of... Read More about The application of code conversion techniques to digital audio systems.

Synchrotron X-radiation protein crystallography and its use in the crystal structure determination of purine nucleoside phosphorylase
Thesis
(1987). Synchrotron X-radiation protein crystallography and its use in the crystal structure determination of purine nucleoside phosphorylase

Fracture and flow in normal and anomalous glasses
Thesis
Bache, M. (1988). Fracture and flow in normal and anomalous glasses

Spontaneous crack extension in fused silica glass when immersed in alkaline solutions but in the absence of an applied stress will be described. In addition, indentation tests on soda-lime-silica and fused silics employing pyramidal indenters with th... Read More about Fracture and flow in normal and anomalous glasses.

An A.E.S. study of S.E.E. and electron beam effects at oxygen exposed aluminium surfaces
Thesis
Adem, E. H. (1985). An A.E.S. study of S.E.E. and electron beam effects at oxygen exposed aluminium surfaces

An AES technique has been used to Investigate oxygen adsorption at clean polycrystalline aluminium surfaces. The adsorption process was found to consist of two stages: chemisorption, reached within the first 50L of oxygen exposure, is followed by an... Read More about An A.E.S. study of S.E.E. and electron beam effects at oxygen exposed aluminium surfaces.

A spin-label ESR study of drug binding to DNA
Thesis
Strange, R. W. (1985). A spin-label ESR study of drug binding to DNA

A spin-labelled derivative of the drug Proflavine was prepared and its interactions with natural DNA in fibres were investigated using the technique of electron spin resonance (ESR). Computer simulations of the ESR spectra showed that spin-labelled p... Read More about A spin-label ESR study of drug binding to DNA.

Adaptive techniques for signal enhancement in the human electroencephalogram
Thesis
Winski, R. (1985). Adaptive techniques for signal enhancement in the human electroencephalogram

This thesis describes an investigation of adaptive noise cancelling applied to human brain evoked potentials (EPs), with particular emphasis on visually evoked responses. The chief morphological features and signal properties of EPs are described. Co... Read More about Adaptive techniques for signal enhancement in the human electroencephalogram.

Electron paramagnetic resonance studies of spin-labelled ethidium bromide DNA interactions
Thesis
Keeble, D. J. (1986). Electron paramagnetic resonance studies of spin-labelled ethidium bromide DNA interactions

Spin-Labelled Ethidium Bromide (SLEB) was prepared in order to study its interactions with natural DNA in the form of fibres . The technique of electron paramagnetic resonance was used in this thesis. Knowledge of the conformational transition pathwa... Read More about Electron paramagnetic resonance studies of spin-labelled ethidium bromide DNA interactions.

Optoacoustic frequency stabilization of a carbon dioxide laser
Thesis
Abdallah Abu-Taha, M. I. (1987). Optoacoustic frequency stabilization of a carbon dioxide laser

In this thesis a study has been made of the design, construction and, in particular, frequency stabilization of a d.c. excited carbon dioxide laser. The outline of the theory of the carbon dioxide laser is presented as a prelude to a detailed study o... Read More about Optoacoustic frequency stabilization of a carbon dioxide laser.

Infrared studies of classical novae and the recurrent nova RS Ophiuchi
Thesis
Callus, C. M. (1987). Infrared studies of classical novae and the recurrent nova RS Ophiuchi

This work is concerned with new observations, within the 1-100um infrared wavelength range, of novae and with models to explain these and existing observations of these objects.
The first half is concerned with the classical novae. Some of these obj... Read More about Infrared studies of classical novae and the recurrent nova RS Ophiuchi.

Dynamic properties of an ammonia maser incorporating a disc resonator
Thesis
Davis, J. A. (1987). Dynamic properties of an ammonia maser incorporating a disc resonator

The oscillation properties of an ammonia maser employing dual molecular beams and a Fabry-Perot type disc resonator are investigated. The molecular beam flux is pulsed by the use of small fuel injection valves. The resulting gas pulses entering the m... Read More about Dynamic properties of an ammonia maser incorporating a disc resonator.

A study of R Coronae Borealis and RV Tauri stars
Thesis
Goldsmith, M. J. (1987). A study of R Coronae Borealis and RV Tauri stars

A variety of aspects of R Coronae Borealis and RV Tauri variables are investigated. Simultaneous optical and infrared observations of both types of star allow stellar and dust shell parameters to be inferred. For R Coronae Borealis stars, light is th... Read More about A study of R Coronae Borealis and RV Tauri stars.

Evolution of electron capture supernova progenitors: new models, improved nuclear physics and hydrodynamic mixing uncertainties
Thesis
(2014). Evolution of electron capture supernova progenitors: new models, improved nuclear physics and hydrodynamic mixing uncertainties

Electron capture supernovae (EC-SNe) are the deaths of approximately 8-10M stars. In this thesis, the evolution of 8-12M stars is calculated using the MESA stellar evolution code. The aims of this thesis are to produce the most advanced and up-to-dat... Read More about Evolution of electron capture supernova progenitors: new models, improved nuclear physics and hydrodynamic mixing uncertainties.