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4 TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

4 2008

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Total Losses of Fishing Vessels Due to the Insufficient Stability

Krata P.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2008

Vol. 2, no. 3

311--315

The paper presents the statistic data analysis of total losses of the fishing vessels. The emphasis is put on the total losses caused by the insufficient stability of considered ships. The research is focused on the fishing vessels, which are relatively small ones in marine industry, so they are most affected by the wind and rough sea. The correlation between type of the vessel, its size, the shape of its hull and the capsizing statistic is presented. The regularities noticed in course of statistic analysis allows to formulate the suggestions regarding the influence of some hydrodynamic phenomena on the safety of fishing vessels and the number on their total losses at the sea.

The Paris MOU on PSC, Propulsion and Auxiliary Machinery Deficiencies and the Maritime Safety

Melo G., Cobos I.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2008

Vol. 2, no. 4

397--401

This article tries to show the relationship between one important set of deficiencies included in the Paris Memorandum of Understanding on Port State Control procedures, propulsion and auxiliary machinery, the importance of this set of deficiencies for the PSC inspection and also its importance for the Maritime Safety. The maintenance of the propulsion and auxiliary machinery systems has become less important that it deserves, that means while the ship sails everything is supposed to be properly maintained, this is the most extended policy in the Companies and accepted and supported by the Owners. This article studies the deficiencies included in the category propulsion and auxiliary machinery detected by the Port State Control Officers (PSCO) of the Paris MOU area, and tries to demonstrate how important they are in these inspections. At the same time can be seen the professional profile of the PSCO’s as well as the assessment made by them of those areas included in this set of deficiencies.

Safety and Security Aspects for the Effective Shipment of Radioactive Materials with Maritime Transportation

Er Z.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2008

Vol. 2, no. 3

303--309

The International Atomic Energy Agency (IAEA) estimates that 10 million shipments of radio-active materials are transported annually. Each shipment is made up of either a single package or a number of packages transported from one location to another. The vast majority of these shipments, some 95%, relate to non-fuel cycle transports such as the transport of smoke detectors, and cobalt sources for medical purposes. Only 5% relate to nuclear fuel cycle transports. This study investigates the safety stability aspect, harmonized regulation based transportation, sustaining shipment aspect for the transportation of radioactive materials by ships. Consequently the originality of this paper appears the alignment of existing maritime rules and regulations with the IAEA regulations in order to provide easy understanding and usage for the establishment of code of safe and secure practices for seafarers with the countermeasures and harmonized regulations that are practically implemented by the navigation officers and Master.

Model of Interaction of Water and Tank’s Structure in Sloshing Phenomenon

Krata P.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2008

Vol. 2, no. 4

389--395

The paper presents the model of interaction between ship’s tank structure and water contained in the tank. The experimental investigation of sloshing loads in ships’ tank is characterized and the need for description of mutual influence is underlined. The model of interaction is made up for rectangular ship’s tanks and it is assumed to be in time-domain and nonlinear. The solution is based on the data obtained by the experimental research and numerical simulation. The study may be the contribution to more sophisticated estimation of ship’s stability than it takes place nowadays.