Teruaki Yoshida

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In situ mucus release by Acropora nobilis and degradation of mucus from A. nobilis and Acropora formosa, by heterotrophic bacteria were investigated at Bidong and Tioman Island, Malaysia. Mucus release rate for A. nobilis was on average 38.7 ± 35.2 mg C m−2 h−1, of which ca. 70% consisted of dissolved organic carbon (DOC) and 30% particulate organic carbon(More)
We have gotten the first opportunity to observe characteristics of the FM radio wave propagated over the epicenter. In our observation system installed at Nobeyama, fluctuations of the FM radio wave of 82.3MHz had been observed on the two Niigata Prefecture earthquakes on October 23 in 2004 and on July 16 in 2007. In this paper, the propagation(More)
Zooplankton was sampled at 3-h intervals for a 48-h period from a coral reef of Tioman Island, Malaysia. It was size-fractionated into three size classes: 100–200, 200–335, and >335 μm using different sieves with different mesh sizes. Total zooplankton (>100 μm) abundance and biomass in the water column were high later at night (0300 h), not just after(More)
This paper newly proposes the human detection system around a detached house using UHF band transmitters, for the purpose of crime-prevention on the premises. In Japan, we can easily utilize some licence-free specified low power radio stations as UHF band transmitters, such as transceivers using 400 MHz band and wireless microphone systems using 800 MHz(More)
We propose of a digital signage system with a new audience detection system using TV broadcasting waves and show its experimental trial at our university for about three months. For audience motion detection, we use received level fluctuations of TV broadcasting waves by sensing physical movement. The authors have already developed this detection technique(More)
In the second half of 20 century, the technological environments in communication and broadcasting services have been greatly advanced, and the information services (IS) of the next generation are going to be developed towards the 21 century. The IS will require broadband, mobile and asymmetrical communications. What media will be suitable for the IS in the(More)
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