Simulation and Virtual Prototyping got into many difficulties before becoming a part of the traditional ship building processes. However the greater complexity of constructions and boarded systems demand more complete design verifications. Even if a boarded system is analogous to the land one, it must stand the high intensity of the induced ship motion. The forecasting of the ship motions has a...

This paper presents the algorithm for target point detection using image based methods and sensor networks to monitor the accuracy control for assembling ship blocks in a ship yard area. Dimensional control of the product at all assembling level accounts for a profitable ship production. An accuracy error at each stage accumulates to a higher value which leads to low level of ship productivity....

Increased environmental concerns, resulted in new legislation, and high and volatile fuel prices are today’s driving forces to reduce operational costs and become greener. Reduction of fuel consumption acts as the main contributor towards this. In the context of the given economic pressure and from international law point of view, the amount of energy-savings by vessel fuel should be increased ...

Combining calibrated hydrophone measurements with vessel location data from the Automatic Identification System, we estimate underwater sound pressure levels for 1,582 unique ships that transited the core critical habitat of the endangered Southern Resident killer whales during 28 months between March, 2011, and October, 2013. Median received spectrum levels of noise from 2,809 isolated transit...

Since fouling-release coating systems do not prevent settlement, various methods to quantify the tenacity of adhesion of fouling organisms on these systems have been offered. One such method is the turbulent channel flow apparatus. The question remains how the results from laboratory scale tests relate to the self-cleaning of a ship coated with a fouling-release surface. This paper relates the ...

A ship power equipments' fault monitoring signal usually provides few samples and the data's feature is non-linear in practical situation. This paper adopts the method of the least squares support vector machine (LSSVM) to deal with the problem of fault pattern identification in the case of small sample data. Meanwhile, in order to avoid involving a local extremum and poor convergence precision...

In this short paper we describe a tool for testing the reliability and robustness of Windows NT soft ware applications under stressful environmental con ditions i e under system resource failure conditions Windows NT systems are increasingly being deployed in mission critical applications such as for command and control in US Navy ships However as re cently as July the Navy s Aegis missile crui...

SHIP-1 negatively regulates the PI3K pathway in hematopoietic cells and has an emerging role in T lymphocyte biology. PI3K and SHIP can regulate cell migration in leukocytes, particularly in neutrophils, although their role in T cell migration has been less clear. Therefore, we sought to explore the role of SHIP-1 in human CD4(+) T lymphocyte cell migration responses to chemoattractants using a...