The National Defense Program Guidelines in 2010 expresses Japan's defense intentions and capabilities by outlining the Dynamic Defense Concept, which provides a deterrence against invasion by patrolling the areas around Japan and maintaining a posture for detection of and rapid response to threats; it also outlines a necessary increase in submarine capabilities. In order to implement the Concept, improvements in detection capabilities and acoustic wave propagation predictions are needed and cooperation among public organizations is desirable.

We have developed a new type of wind power generation system that dramatically improves efficiency by concentrating wind energy. This is the small (1-5kW) or medium (100kW) lens wind turbine, which has achieved a 2-5 fold increase in power output compared to conventional wind turbines.Aiming at marine energy development to wind power energy, we installed a hexagonal floating platform with a diameter of 18m in Hakata Bay, Fukuoka, to create a floating island type energy farm mounted with two 3kW lens wind turbines and a 2kW solar panel.
Selected Papers No.18(p.18)

A jellyfish boom has arrived in the Ariake Sea, due to the mass birthing of Edible Jellyfish in 2012. Coupled with the slump in other seafood catches, some fishermen's livelihood has now come to depend on jellyfish. However, as jellyfish are now being overfished, appropriate fish management is needed if we desire a sustainable jellyfish fishery.