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Abstract: The story of oil and gas exploration in the Arctic Islands of Canada and in the Sverdrup Basin of that region is largely the story of Panarctic Oils Limited. Panarctic was incorporated May 27, 1966 by Federal Letters Patent and operations started in 1968 with the first seismic work. J.C. Sproule of Calgary was a major force behind its formation. Panarctic was an industry/government consortium established to explore for oil and gas in the Canadian Arctic Islands, with up to 37 participating companies. Panarctic drilled 150 wells over an area measuring some 850 by 1200km. The most northerly well was located approximately 80°45′ N on Ellesmere Island and the most southerly well was at 72°40′ N on Prince of Wales Island. 38 of these wells were drilled offshore from floating ice platforms in water depths of up to 550m. 500km3 (17.5trillionft3) of natural gas reserves was discovered over this period and small oil reserves were discovered at Bent Horn. All of the offshore wells attempted were drilled, logged and tested as planned, a proof of the viability of using ice as a support for drilling. In spite of large distances, extreme weather and permafrost, the operations were successful and had no lasting effect on the environment. This paper summarizes the significant achievements over Panarctic''s history from inception to 1986 when operations ceased. [Copyright &y& Elsevier]

Abstract: The waste intermodal station of Clyde, in the city of Sydney, Australia, is in the heart of a complex network of terminals connected by road and rail to transport urban waste from its first collection to its final disposal. The amount of waste the network is projected to handle in 2015 will increase from about 340,000tonnes/year in 2006 up to about 1.5million tonnes/year, following population and consumption raise. The paper proposes a discrete-event model to represent Clyde Transfer Station (TS) and its relations with the other terminals. Such a model allows one to evaluate the effects of different expansion plans of the station structures as well as different policies of the collection service. The results show that, as often happens, a careful consideration of management alternatives can decrease the necessity of structural enlargement, which is normally much more expensive, if at all possible. [Copyright &y& Elsevier]