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2 2006

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Advanced gasification technology with use of super high temperature steam

Mochida S., Yasuda T.

Prace Naukowe Instytutu Inżynierii Ochrony Środowiska Politechniki Wrocławskiej. Konferencje

2006

Vol. 81, nr 12

39-39

Super high temperature steam gasification technology offers new opportunities for a successful and efficient treatment of plastic and/or biomass wastes. Thermal energy obtained through combustion of a part of the synthetic gas enables to generate the high temperature steam exceeding 1000 °C. and then the steam works efficiently as a gasifying agent.

Para o bardzo wysokiej temperaturze stwarza nowe możliwości zagospodarowania odpadów polimerowych oraz biomasy. Para o temperaturze powyżej 1000 °C działa skutecznie jako czynnik gazyfikujący. Firma NFK opracowała technologie produkcji gazu syntezowego z dużą wydajnością, przy zmniejszonej zawartości smoły i sadzy. Część gazu zużywana jest do celów energetycznych.

Development of implantable assist pump and its peripheral devices

Okamoto E., Makino T., Yamamoto Y., Asao H., Watanabe N., Nakamura M., Tanaka S., Inoue Y., Yasuda T., Mitamura Y.

Biocybernetics and Biomedical Engineering

2006

Vol. 26, no. 1

45-51

Two national project for development of an artificial heart system are being undertaken in Japan, and Hokkaido Tokai University has taken part in both national projects in order to develop peripheral devices of an implantable VAD (ventricular assist device) system. Each of the peripheral devices incIudes a transcutaneous energy transmission system, an internal battery system, and a transcutaneous information transmission system. Maximum energy transmission efficiency of the transcutaneous energy transmission system is over 85% (DC to DC) at an energy transmission ratio of 25 W. The internal battery system mainly consists of three lithium ion batteries, a charge circuit, and a power interface (case size of 11Ox80x30 mm). The internal battery system can drive a VAD for over 2 hours with maximum battery case surface temperature of 43°C. The information transmission system (diameter of 52 mm and thickness of 12 mm) mainly consists of an ASK modulator and an ASK demodulator employing carrier frequencies of 4 MHz and 10 MHz. It can transmit data electromagnetically between inside and outside of the body bi-directionally at a data transmission ratio of 56 kbps. Long-term animal experiments showed that each peripheral device has adequate performance to support the operation of implantable VAD.