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Wave Energy is a widespread, reliable renewable energy source. The early study on Wave Energy dates back in the 70’s, with a particular effort in the last and present decade to make Wave Energy Converters (WECs) more profitable and predictable. The PeWEC (Pendulum Wave Energy Converter) is a pendulum-based WEC. The research activities described in the present work aim to develop a pendulum converter for the Mediterranean Sea, where waves are shorter, thus with a higher frequency compared to the ocean waves, a characteristic well agreeing with the PeWEC frequency response. The mechanical equations of the device are developed and coupled with the hydrodynamic Cummins equation. The work deals with the design and experimental tank test of a 1:12 scale prototype. The experimental data recorded during the testing campaign are used to validate the numerical model previously described. The numerical model proved to be in good agreement with the experiments.

Strong low-pressure systems traveled along Japanese Main Island in October 2006. High waves and storm surge attacked Kashima Coast resulting huge erosion over the area. The extent of the study area is 38 km long for the northern Kashima Coast and 15 km long for the southern Kashima Coast. This study analyzed the foreshore erosion caused by the storms using airborne laser data measured in October 2005 and November 2006. The results are compared with the distributions of longshore component of wave power and wave run-up which estimated using SWAN wave model. The results indicate that the amount of erosion and its distribution are in agreement with the longhsore component of the wave power along the coast and the most of the high wave run-up values appear within the high eroded sections. These were especially prominent at the untreated sections, which should be close to the natural response by wave action.