3 documents found, page 1 of 1
Distribuição da temperatura, salinidade, oxigênio dissolvido e massas d'água na...
Freire, George Satander Sá; Oliveira, Moisés Almeida de; Andrade, Edsard deThis paper aims at presenting the distribution patterns of some oceanographic conditions as a means of defining water masses in northeastern Brazil. The following results have been single out: 1) In the studied region, the following water masses have been identified: tropical, subtropical, and intermediate antarctic. 2) The tropical water mass occupies a very narrow area, of approximately 80 meters in breadth. ...
Estudo preliminar das condições físico-químicas que provocam corrosão metálica,...
Oliveira, Moisés Almeida de; Freire, George Satander Sá; Andrade, Edsard deThis paper is intended as a preliminary study of the physico-chemical conditions which cause mettalic corrosion in the estuary of Bacanga River, Maranhão State. Among the methods available for corrosion control, the following have been selected as the most suitable for the conditions found in the studied area: 1) Protective coating applied to inexpensive materiais, such as steel and cast iron. This coating ma...
Estudos geoquímicos dos platôs marginais dos Estados do Ceará e Rio Grande do N...
Andrade, Edsard de; Freire, George Satander Sá; Oliveira, Moisés Almeida deThis paper deals with the concentration of phosphorus, nitrogen, organic carbon, irou, titan, calcium, agnesium and organic matter in sediments of the marginal plateaux of the states of Ceará and Rio Grande do Norte, considering the origin, deposition and migration of these elements. The samples were collected on board of NOc. Almirante Câmera of the Brazilian Navy during the "Platôs Marginais Cruise", legs ...