Difference between heartwood and sapwood
Forest Products Laboratory (U.S.)
1919
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Dissertação de mestrado em Serviços de Informação
The acceleration of industrial machines mobile parts has been increasing over the last
few years, due to the need of higher production in a short period of time. The machines were
dimensioned for a lower value of acceleration, which means there is not enough rigidity for the
correct operation at much higher accelerations. Nowadays, the accelerations can be near 12 times
the acceleration of gravity. There is the need of improving rigidity to make possible the correct
machine operation without undesired vibrations that can ultimately lead to failure. The main
applications of this work are plotters and laser cutting machines. To improve rigidity, one must
improve the relevant material properties, and the relevant geometric variables of the model.[1] A
novel Finite Element Model Updating methodology is presented in this paper. The consider...
Dissertação de mestrado em Administração Pública
Abstracts of the European Congress on Biotechnology, 14, Barcelona, Spain, 2009
Dissertação de mestrado em Administração Pública (área de especialização em Gestão Pública)
These are the results (datasets) of a study reported in the paper ``A panoramic view on Metadata Application Profiles of the last decade``.
Fundação para a Ciência e a Tecnologia (FCT), FEDER and COMPETE funds (Projects PEst-OE/ECI/
UI4047/2011, PTDC/ECM/74033/2006 and PTDC/ECM/119179/
2010)
Endoscopy adverse events (AEs), or complications, are a rising concern on the quality of endoscopic care, given the technical advances and the crescent complexity of therapeutic procedures, over the entire gastrointestinal and bilio-prancreatic tract. In a small percentage, not established, there can be real emergency conditions, as perforation, severe bleeding, embolization or infection. Distinct variables interfere in its occurrence, although, the awareness of the operator for their potential, early recognition, and local organized facilities for immediate handling, makes all the difference in the subsequent outcome. This review outlines general AEs’ frequencies, important predisposing factors and putative prophylactic measures for specific procedures (from conventional endoscopy to endoscopic cholangio-pancreatography and ultrasonog...
