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ISBN: 978-989-8509-01-7

Any statements expressed in these materials are those of the individual authors, and do not necessarily represent the views of the Symposium organizers (APRH or IAHR), who take no responsibility for any statement made herein. No reference made in this publication to any specific method, product, process or service constitutes or implies an endorsement, recommendation, or warranty thereof by the Symposium organizers. The materials are for general information only, and do not represent a standard of the Symposium organizers, nor are they intended as a reference in purchase specifications, contracts, regulations, statutes, or any other legal document. The Symposium organizers make no representation or warranty of any kind, whether express or implied, concerning the accuracy, completeness, suitability, or utility of any information, apparatus, product, or process discussed in this publication, and assume no liability therefore. This information should not be used without first securing competent advice with respect to its suitability for any general or specific application. Anyone utilizing this information assumes all liability arising from such use, including but not limited to infringement of any patent or patents.

Copyright © 2012 by the APRH – Associação Portuguesa dos Recursos Hídricos (Portuguese Water Resources Association).

All Rights Reserved.

ISBN: 978-989-8509-01-7

Manufactured in Portugal

Associação Portuguesa dos Recursos Hídricos (Portuguese Water Resources Association).

4 th IAHR International Symposium on Hydraulic Structures

Portuguese Water Resources Association

a/c LNEC - Avenida do Brasil, 101

1700-066 Lisboa, Portugal

Tel: +351 21 844 34 28 | Fax: +351 21 844 30 17

website: http://www.aprh.pt e-mail: [email protected]