Abstract:In order to harness the kinetic energy of marine currents, we propose a novel ocean-current turbine with a horizontal axis. The turbine can be moored to the seabed and function similarly to kites in a water flow. To operate such turbines in a marine current, the resulting rotor torque needs to be canceled. Therefore, the proposed turbine is designed with a float at its top and a counterweight at its bottom. Thus far, we have verified the turbine stability and blade performance through towing experiments. As the next step, we constructed a scale-model turbine to confirm the mooring system. This experiment was performed at a circulating water channel with wave-making facilities. The influence of waves on the floating body was also investigated. In this paper, we report the behavior of the scale-model turbine moored to the tank bottom and discuss the influence of surface waves.

The aim of this paper is to propose the grasping method of the pattern and level of the ag910meration of land use ・・i・g ・ ・m ・t・can clarify the level of the agg ！ omeration of land use of a large regional area ． DI Index is a potential value ca ！ culated based on distributiQn of CN iロdex． IrL the paper 五rstly we abstracted the pattern of land use by classi 血 cation frDm their land − surfa じ e situatiQn using remote − sensing data of West Aichi ・ Secondly we measured the DI Index ， Then we checked the land use pattern of West Aichi using DI Index arld considered the feature ， As a result by using DI Index the level of the agglomeration of land use could be classi 丘ed comparative ！ y clearly and especia 工 1y the shape of the edge of agglomeration could be figur巳 d． Keywerds 'ren ：ote −senSibg ， 1and use ， ag ． oJomeratibn ， giid data ． distribution cba πactefistics

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