Underwater radiated noise measurements for seven types of modern commercial ships during normal operating conditions are presented. Calibrated acoustic data (<1000 Hz) from an autonomous seafloor-mounted acoustic recorder were combined with ship passage information from the Automatic Identification System. This approach allowed for detailed measurements (i.e., source level, sound exposure level...

The presence of ambient air in liquid-slamming events plays a crucial role influencing the shape liquid surface prior to impact, and distribution loads created upon impact. We study effect trapped on impact simplified geometry, by slamming horizontal flat disc onto stationary water bath at well-controlled velocity. show how trapping influences pressure peaks different radial locations disc, imp...

Previously, we showed that 2B4 is a dominant inhibitory receptor in SHIP-deficient NK cells that prevents efficient cytolysis of complex targets. We show in this study that 2B4 deficiency restores homeostatic control and cytolytic function to SHIP-deficient NK cells. However, 2B4(-/-)SHIP(-/-) NK cells still exhibit a profound disruption of their NK receptor repertoire and are compromised for i...

Although the inositol phosphatase SHIP-1 is generally thought to inhibit signaling for Fc receptor-mediated phagocytosis, the product of its activity, phosphatidylinositol 3,4 bisphosphate (PI(3,4)P(2)), has been implicated in activation of the NADPH oxidase. This suggests that SHIP-1 positively regulates the generation of reactive oxygen species after phagocytosis. To examine how SHIP-1 activi...

A model simulating a coupledjuid-structure impact buckling phenomenon is constructed in this paper. Based on the experiment’,’ the model is designed as an impact system in which a small imperfection elastoplastic column is attached by its upper end to a large mass and by its lower end to aflatplate; it then perpendicularly impacts a viscous water free surface from a certain drop height or in a ...

The purpose of this paper is to study very early retirement as an indicator for poor health, with focus on a comparison between the two language groups in Finland. Extensive longitudinal data are analysed with the help of random effects probit models. As expected from previous studies of mortality differences, the rate of retirement is lower among Swedish-speakers than among Finnish-speakers, a...

Second generation intact stability criteria for few past years had been under development by International Maritime Organization (IMO). Since the draft proposed amendments shall be amended to International code on Intact Stability (IS code 2008), new regulations shall enter into force for ships of length more than 24 meter. Generally second generation intact stability criteria (SGISC) refers to...

The climate-security century is here. Both the United Nations Intergovernmental Panel on Climate Change (“IPCC”) and U.S. Fourth National Assessment (“NCA”) recently sounded alarm climate change’s “super-wicked” destabilizing security impacts. Scientists professionals alike reaffirm what we are witnessing with our own eyes: earth warming at a rapid rate; change affects international peace in co...