Launch and recovery helicopter wind envelope for a ship type was determined as the first step to the helicopter qualification program. Flight deck velocities data were obtained by means of a two components laser Doppler anemometer testing a 1/50 model in the wind tunnel stream. Full-scale flight deck measurements were obtained on board the ship using a sonic anemometer. Wind tunnel and full-sca...

0 7 4 0 7 4 5 9 / 0 3 / $ 1 7 . 0 0 © 2 0 0 3 I E E E After initial salvage attempts, the ship was largely forgotten until Anders Franzen located it in 1956.1 In 1961, 333 years after it sank, the Vasa was raised; it was so well preserved that it could float after the gun portals were sealed and water and mud were pumped from it. The sheltered harbor had protected the ship from storms, and the ...

Viewing a ship as a weapon system is not a new concept. An excellent example is the Fleet Ballistic Missile (FBM) Submarine. Within its community, the FBM is perceived as a weapon system consisting of the weapon subsystem, the navigation subsystem, and the ship subsystem. There are good engineering reasons for this view: allocating resources, organizing information, and providing coordination. ...

pollution of water and soils by heavy metals is an emerging problem in industrialized countries.the present study was conducted to investigate the heavy metals concentration in water and sedimentsamples from ship breaking sites of sitakunda to assess the potential ecological risk posed by heavy metalusing different methods. heavy metals concentration was analyzed by atomic absorption spectrosco...

We present an automated ship scheduling system – DUKC R © Optimiser – which selects sailing times for a set of cargo ships at a port, so as to maximise total cargo throughput while meeting port operational and safety guidelines, as well as producing schedules that are fair to all companies using the port. The system has been developed by maritime engineering company OMC International, incorpora...

The relevance of ship routing system is increasing according to the mitigation of carbon emissions and enhance the maritime safety. New generation of high-resolution meteo-oceanographic predictions provides useful tools for ship routing. However, scientific efforts have been focused on inter-oceanic routes. This contribution investigates the economic benefits and improvement on safety navigatio...

We report on an evaluation study of a ship classi er based on the Principal Components Analysis (PCA). A set of ship pro les are used to build a covariance matrix which is diagonalized using the Karhunen-Lo eve transform. A subset of the principal components corresponding to the highest eigenvalues are selected as the ship features space. The recognition process consists in projecting a pro le ...

Although SHIP is a well-established suppressor of IgE plus Ag-induced degranulation and cytokine production in bone marrow-derived mast cells (BMMCs), little is known about its role in connective tissue (CTMCs) or mucosal (MMCs) mast cells. In this study, we compared SHIP's role in the development as well as the IgE plus Ag and TLR-induced activation of CTMCs, MMCs, and BMMCs and found that SHI...

A calculation model to simulate nonsymmetric ship collisions, implying an arbitrary impact location and collision angle, is described in the paper. The model that is introduced is based on the time integration of twelve equations of motion, six for each ship. The motions of the ships are linked together by a mutual contact force. The contact force is evaluated as an integral over the surface tr...

Ship detection is a crucial application for global monitoring for environment and security. It permits to monitor traffic, fisheries, and to associate ships with oil discharge. An automatic ship detection approach for RADARSAT Fine Synthetic Aperture Radar (SAR) image is described and assessed using in situ ship validation information collected during field experiments conducted on August 6, 20...