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JAMSTEC developed the cultivation system of seafloor hydrothermal deposit in order to monitor physical property of hydrothermal fluid and secular change in a weight of the mineral deposit for long term. These cultivation systems were installed by CHIKYU on the “artificial” hydrothermal vents which were drilled by CHIKYU. One of cultivation system was installed in the C9024A well in the Iheya North...
During past years, power systems are continuously expanding with increasing electric power supplies and distribution systems. Accordingly, such systems might be subjected to power system instability depending on their system conditions. Therefore, we have installed Phasor Measurement Unit (PMU) in Japanese universities and constructed analytical system for the power system characteristics. This paper...
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