This paper describes a Finnish project on developing a blended learning approach to training the merchant marine On Board Training Officers. Maritime Education and Training is regulated by the International Maritime Organization's Code on Seafarer’s Training, Certification and Watchkeeping. On Board Training comprises one third of the Deck Officer and Engineer studies. There have been problems ...

In this paper, a method for extracting wind parameters from rain-contaminated X-band nautical radar images is presented. The texture of the radar image is first generated based on spatial variability analysis. Through this process, the rain clutter in an image can be removed while the wave echoes are retained. The number of rain-contaminated pixels in each azimuthal direction of the texture is ...

Simulation research on the launch process of a ship-borne multiple launch rocket system is studied in this paper. First, the power spectrum density of the ship’s motion is calculated based on ocean wave energy spectrum, and the movement spectrums of the ship’s random motion are calculated. Then, the model of shipborne rocket launcher system is built by virtual prototype technology. The launch p...

nanocrystalline zno particles were prepared by a novel sonochemical route from zinc acetate and sodium hydroxide without any requirement of calcination steps at high temperature and without surfactants. variations in several parameters and their effects on the structural (crystal size and morphology) properties of nanoparticles were investigated. characterizations were carried out by x-ray diff...

Depth-resolved information is essential for ocean research. For this study, we developed a shipborne photon-counting lidar depth-resolved oceanic plankton observation. A pulsed fiber laser with frequency doubling to 532 nm acts as light source, generating single pulse at the micro-joule level width of less than 1 ns. The receiver capable simultaneously detecting elastic signal two orthogonal po...

Ora-pro-nóbis (Pereskia aculeata Mill.) is an unconventional vegetable found in the Brazilian Atlantic Forest and consumed, mainly by rural population who lives this biome. The present study investigated nutritional value contribution potential species to recommendations of daily nutrient intake for adults. Moisture ash content were determined gravimetry after oven drying muffle incineration, r...

Satellite altimetry, satellite gravimetry, and in-situ subsurface salinity temperature profiles are used to investigate the total, barystatic, steric sea level variations in Baltic Sea, respectively. To estimate level, density weighted deeper layers prevent overestimation of their contribution. We show that sum barystatic components exhibits excellent cross correlation (0.9) with altimetry also...

The satellite mission GRACE (Gravity Recovery and Climate Experiment) provides monthly solutions of the global gravity field of the Earth. Temporal variations in gravity reflect mass redistributions over the Earth. Those mass movements are caused by physical phenomena such as ice sheet dynamics, accumulation of hydrological masses over land, the dynamics in the solid Earth and the dynamics in t...