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Page 7 was mistyped as being page 8. All content present is in logical order.

This work suggests a new multiple ejector refrigeration cycle operated by an NGL Recovery Plant's waste heat as a replacement to the mechanical compression refrigeration cycle. This will result in significant power reduction and CO2 emission reduction.

This work describes a study of the gamma rays and beta particles emitted during the decay of the 33-second fission product Krypton-90. Procedures for the analysis of gamma, gamma-gamma coincidence, beta and beta-gamma coincidence experiments are discussed. The application of these analyses to the short-lived Krypton-90 activity yields the prominent features of this decay. The total energy release of this decay was found to be 4.56 ± 0.02MeV, in agreement with beta systematics. A level scheme for the daughter, Rubidium-90, is proposed. Thesis Doctor of Philosophy (PhD)

A previous study (Davies and Hay, 1978) described a method of calculating hourly and daily values of global solar radiation for cloudless and cloudy sky conditions. This scheme, requiring only upper air data from daily radiosonde ascents, and hourly surface weather observations, has been used successfully at a number of mid latitude sites (Davies et al., 1975; Suckling and Hay, 1976). In this investigation the extension of this method for use in an Arctic environment is presented. Solar radiation received at the earth's surface is the sum of direct and diffuse components. The flux in cloudless conditions is calculated as the residual after attenuation of solar irradiance by water vapour, ozone, Rayleigh scattering and aerosol. Cloudless sky values are then adjusted for cloud effects, using a cloud layer method similar to that used by Davies et al. in Southern Ontario, Canada. The computed values are compared with values measured at Resolute, N.W.T., Canada. Under cloudless sky conditions hourly and daily calculated values agree well with ·measurements. For days of cloud amount less than 4/10, model overestimates are observed. As cloud amounts increase varying degrees of model underestimation of measured values occur. This is linked with observer inability to adequately specify cloud amount, and the variation of cloud type transmission characteristics for Arctic areas. Thesis Bachelor of Arts (BA)

This thesis presents an investigation of the electron-voltaic effect using epitaxial P-N junctions. The effect is manifested in the direct energy conversion of beta particles emitted from a radioisotope promethium^147 source by single and multi-junction devices. The purpose of the investigation is to determine the power outputs of the devices which may be combined in series and parallel combinations in the construction of an atomic battery with a small size and long lifetime (approximately 5 -10 years). Thesis Master of Science (MSc)

An assessment of what is known about problems related to health system sustainability in Ontario, options for addressing these problems, and key implementation considerations. The citizen brief was an input to a citizen panel on the topic of addressing health system sustainability in Ontario. Ontario Medical Association