Outputs (2107)

The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity
Thesis
Sealy Smart, G. D. (1973). The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity

The construction of an ammonia molecular beam maser employing an open resonator is described. The operation of this maser as an amplifier enables the effects of mode degeneracy in the resonator to be examined in a controlled manner. Its operation abo... Read More about The construction and characteristics of an ammonia beam maser employing a fabry-perot cavity.

Slow crack propagation in glass
Thesis
Weidmann, G. (1973). Slow crack propagation in glass

Slow crack propagation in glass is examined in a variety of environments using the double-torsion technique. The results are interpreted in terms of a limited plasticity fracture criterion and the time dependence of the yield stress.

Intramolecular nitrene insertions into aromatic systems
Thesis
Carde, R. N. (1974). Intramolecular nitrene insertions into aromatic systems

A study of the intramolecular insertion reactions of aryl nitrenes is described.
In Part I the preparation and photolytic decomposition of a number of aryl azides in diethylamine is described. The usual products were 3H-azepines but in one case ring... Read More about Intramolecular nitrene insertions into aromatic systems.

Studies on the cationic polymerisation of some 1, 3-dioxacycloalkanes
Thesis
Firat, Y. (1974). Studies on the cationic polymerisation of some 1, 3-dioxacycloalkanes

This thesis concerns the polymerisation of 1,3-dioxacycloalkanes.
Chapter 2 is concerned with the preparation of monomers, initiators and other compounds and with the experimental techniques.
In Chapter 3 the effects of purity on the polymerisation... Read More about Studies on the cationic polymerisation of some 1, 3-dioxacycloalkanes.

Publications submitted for the degree of D.Sc.
Thesis
Jones, G. (1974). Publications submitted for the degree of D.Sc

Spectroscopic studies of some haemoglobin derivatives
Thesis
Gray, K. (1974). Spectroscopic studies of some haemoglobin derivatives

This thesis describes a study of the magnetic and optical properties of human haemoglobin and certain of its derivatives. The techniques of electron spin resonance spectroscopy and optical spectrophotometry at low temperatures are used.
An introduct... Read More about Spectroscopic studies of some haemoglobin derivatives.

Coupled molecule-radiation field effects in an ammonia beam maser
Thesis
Lefrere, P. R. (1974). Coupled molecule-radiation field effects in an ammonia beam maser

Details are given of a number of phenomena which have been observed in an advanced ammonia beam maser. These include cooperative effects arising during the build-up of oscillations, regenerative nutation, pulling and quenching of oscillations, induce... Read More about Coupled molecule-radiation field effects in an ammonia beam maser.

Magnetic resonance studies of paramagnetic centres in oxide crystals
Thesis
McGeehin, P. (1974). Magnetic resonance studies of paramagnetic centres in oxide crystals

The results reported in this thesis were obtained using Electron Paramagnetic Resonance. Studies were made of previously neutron irradiated crystals of CaWO4 and CaO, and of the system CaO : Gd3+.

The thermochemistry of some transition metal complexes
Thesis
McNaughton, J. L. (1974). The thermochemistry of some transition metal complexes

In this thesis, thermochemical data for two different groups of transition-metal complex are reported.
The first group of complexes is of the type MX2Ln, where M is a first-row transition-metal or Cd, X is a halogen and L is a heterocyclic ligand. T... Read More about The thermochemistry of some transition metal complexes.

Fracture surface zones and crack-branching in some brittle plastics
Thesis
McQullin, B. R. (1974). Fracture surface zones and crack-branching in some brittle plastics

The phenomenon of crack-branching is examined. Other, pre-branching, fracture surface zones which arise on the tensile fracture surfaces of polymethylmethacrylate, polystyrene, and an epoxy resin are then described, and an attempt is made to account... Read More about Fracture surface zones and crack-branching in some brittle plastics.