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The use of Autonomous Underwater Vehicles (AUVs) is now widespread among the underwater observation and survey. Because AUVs are not restricted by an umbilical cable, we think that AUVs have the most suitable form to collect ocean data or work depending on subjects of survey efficiently in the same way as the sea lives with various forms. For example, form to collect ocean data while cruising in a...
Research for the global warming, submarine earthquake or any ocean environmental fluctuation needs huge range observation. In order to gather various seawater data efficiently, Autonomous Underwater Vehicle (AUV) is very useful. Because the vehicle is able to cruise without tether cable joined to support vessel, and gather data and samples automatically. The development of the power source is one...
Recently autonomous underwater plat forms are expected as efficient ocean research platforms which are equipped with physical and chemical sensors, acoustical sensors, and electro-magnetic sensors to obtain the earth information for earth environment researches, ocean resources explorations and so on. Increasing survey range of the platforms makes an increase of the consumption energy. Deep sea seismic...
Proton conductive inorganic–organic hybrid films, which show high proton conductivity at temperatures higher than 100°C with low relative humidity, were prepared from 3-glycidoxypropyltrimethoxysilane (GPTMS), tetramethoxysilane (TMOS) and orthophosphoric acid by the sol–gel method. The relative humidity dependence of the conductivity measurements showed that the ionic conductivity of the films, which...
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