940 resultados para Side Gates
Resumo:
Statistics are presented for the Zimbabwe fisheries of Lake Kariba for 1984, being divided into pelagic and inshore fishery activities.
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Catch and effort data are given for the various pelagic and inshore fisheries of the Zimbabwe side of Lake Kariba for the period 1980-85.
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Catch and effort data are given for the various pelagic and inshore fisheries of the Zimbabwe side of Lake Kariba for the period 1974-86.
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Statistics are presented for the Zimbabwe fisheries in Lake Kariba for the year 1987. Fish landings, fish catches and catch/effort data are given for the pelagic and inshore fishery sectors.
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Statistics are presented for the Zimbabwe fisheries in Lake Kariba for the year 1988. Fish landings, fish catches and catch/effort data are given for the pelagic and inshore fishery sectors.
Resumo:
Two types of fishermen have been identified along the lake shore: contract fishermen and independent fishermen. Independent fishermen move from their fishing grounds to other grounds in search for more fish and also to communal lands for farming during the rains. The fish from Kariba are marketed to a large part of the country creating a very large market potential. Profits accruing to the fishermen are not very attractive and could be the reason for the migratory behaviour of the fishermen. The fishermen population is rural with a characteristic expansive pyramid.
Resumo:
This paper presents a compact integrated power electronic module (IPEM) which seeks to overcome the volumetric power density limitations of conventional packaging technologies. A key innovation has been the development of a substrate sandwich structure which permits double side cooling of the embedded dies whilst controlling the mechanical stresses both within the module and at the heat exchanger interface. A 3-phase inverter module has been developed, integrating the sandwich structures with high efficiency impingement coolers, delink capacitance and gate drive units. Full details of the IPEM construction and electrical evaluation are given in the paper. © 2007 IEEE.