Pantheon Institutional repository

Estuarine systems are dynamic environments that are under constant anthropic influence. The uses of its margins are potential polluters when in disagreement with quality standards. The climatic, hydro biological and geographical conditions make the Paraíba do Norte river estuary and the Nort...

This work presents a qualitative and quantitative approach to introduce human factors aspects in the reliability and risk assessment of offshore rig operations. The qualitative part covers the task analysis and searching for potential causes of failures based on a cognitive framework. I...

Since the added resistance in waves is associated with ocean navigation, it has a great economic, environmental and strategic importance. Hulls are usually designed according to resistance data in calm seas and therefore, they lose efficiency when encounter adverse environmental conditions. ...

This work evaluates the possible over and under dosages in the tumor and organs at risk due to the interplay that can occur between the tumor movement and the multileaf segmentation in lung cancer treatment with stereotactic radiation therapy with modulated intensity technique. In&...

In this dissertation a qualitative and quantitative analysis of the prompt-jump approximation (APJ) is presented, taking as reference the equations of point kinetics for a one group of precursors of delayed neutrons and without external source of neutrons, for constant, linear and perio...

A marine reactor is affected by the ship motion. In certain situations, vessels may be inclined under small angles or in rolling motion about the longitudinal axis passing through the center of gravity of the vessel’s float area. Therefore, this work investigates the behavior ...