In recent years more and more focus has been placed on the environmental aspects of ships, because of the great attention to exhaust gas emissions from ships including CO2, a leading contributor to Green House Gasses (GHG) emissions, due to their negative effect on global warming. Maritime transport has clear environmental advantages: it expends relatively little energy and its infrastructure r...

Many services provide weather forecasts, including severe weather alerts for the marine. It proves that many ships neglect the warnings because they expect to be able to handle the bad weather conditions. In order to identify possible unsafe situations the Coast Guard needs to observe marine vessel traffic 24 hours, 7 days a week. In this paper we propose a system that is able to support the Co...

The decomposition of nonlinear output feedback control into an observer and a state feedback control is an open problem. A solution for dynamic positioning of ships has been proposed in 1] and 2], where an observer-based back-stepping method is used. This note points out that the observer design in 1] and 2] does not cover unstable ship dynamics and suggests a remedy for an extended class of sh...

International surveys of occupational injuries among seafarers have so far been missing. It was the aim to test the method of self-report of injuries and length of time at risk during the latest duty period and second to study the injury incidence rate among seafarers by use of the method. A pilot study was conducted (n = 1068) in Finland, Denmark, the Philippines, Croatia and Spain using self-...

A nonlinear control design study Proefschrift ter verkrijging van de graad van doctor aan de Technische Universiteit Delft, op gezag van de Rector Magnificus prof. The cover design is done by Fay van leeuwen: [email protected] Printed in The Netherlands by Wöhmann Print Service iii I want to dedicate this piece of work to my late father Dil Kabeer who realized the value of education for his ...

In port surveillance, video-based monitoring is a valuable supplement to a radar system by helping to detect smaller ships in the shadow of a larger ship and with the possibility to detect nonmetal ships. Therefore, automatic video-based ship detection is an important research area for security control in port regions. An approach that automatically detects moving ships in port surveillance vid...

The scheduling method of shiplock has a strong influence on the improvement of shiplock capacity. On the condition that the number of the ships waiting for the lock was relatively stable, the paper constructed an optimization model for joint scheduling of double line shiplock based on the nonlinear goal programming. The hard constraints included that the number of ships arranged in the shiplock...

It is a fact that not only ships, but also seafarers and passengers vanish without a trace at sea, be it in the past or in present times. Several examples for this phenomenon are given. A scheme of the ship conditions found after discovering that single persons or even whole crews had disappeared from board is provided as an orientation, before describing in detail the more than 18 reasons for ...

In this paper, we present a robust and accurate multiple ship detection system for port surveillance. First, water region is detected using a region-based technique. Second, ships are located by a cabin detector for the same port surveillance sequences. Third, a verification process is performed to remove the false detections of ships using the detected water region as contextual cues. We have ...

The Royal Australian Air Force (RAAF) conducts maritime surveillance operations in order to deter non-state threats such as terrorism or illegal fishing. RAAF aircraft search various areas of ocean in order to classify as many ships as possible in the shortest possible time. This resembles the traditional Travelling Salesman Problem (TSP) but with many interesting variations – the “cities” (shi...