Ademir J Costa

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This paper reviews recent developments in selected cavitation research areas which have been active mainly within the past two years. The new understanding resulting from this work is summarized. Research topics discussed are cavitation inception on smooth surfaces, on vortex cavitation and scaling, on the measurement of cavitation nuclei, and on the(More)
Theoretical models are adapted to describe the hysteresis effects seen in the electrical characteristics of carbon nanotube field-effect transistors. The ballistic transport model describes the contributions of conduction energy sub-bands over carbon nanotube field-effect transistor drain current as a function of drain-source and gate-source voltages as(More)
Investigates the environmental scanning activities of hotel chains operating in Portugal. Attitudes towards environmental scanning by companies where strategy was formalised through a formal written strategic plan (Intenders) and those companies where strategy was informally developed through a 'vision' or 'informal plan' (Realizers) were analysed and(More)
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