荒木 望

This paper considered a rehabilitation device for leg paralyzed patients and developed a foot pedaled exercise device. This device has foot pedal driven by motor and crank mechanism, and forcibly moves legs fixed on pedals. To confirm performance of this device as a part of brain- machine interface (BMI) lower limb rehabilitation system, we investigated user's brain activity during his foot pedal exercise by electroencephalography (EEG) and near-infrared spectroscopy (NIRS). As a result, we confirmed that the brain activity characteristics measured at using our developed device is almost the same as the characteristics measured at using bicycle ergometer. This indicates that our developed device is possible to use a lower limb rehabilitation device.

A pulse jet generator equipped with flow-control has been developed for the formation of high speed, high frequency consecutive droplets up to 140m/s, 500k drops/s for 10MPa plunger pump. The high speed pulse water jet with abrasive using this generator have been studied for surface machining to gain a smooth, reflective surface. The pulse jets and jet polishing were compared at same conditions for processing speed and for processed surface roughness. Glasses with optically polished.