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The SEEK-2 campaign was carried out over Kyushu Island in Japan on 3 August 2002, by using the two sounding rockets of S310-31 and S310-32. This campaign was planned to elucidate generation mechanisms of Quasi-Periodic Echoes (QPEs) associated with mid-latitude sporadic-E(E s) layers. Electron number densities were successfully measured in the E s layers by(More)
In this paper, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced. The cylindrical shaped bulk piezo-electric transducer, a diameter of 0.8 mm and a height of 2.2 mm, was developed as stator transducer for traveling wave type ultrasonic motor. The transducer was made of lead zirconate titanate (PZT) bulk ceramics,(More)
Analysis of the human gaze is a basic way to investigate human attention. Similarly, the view image of a human being includes the visual information of what he/she pays attention to.This paper proposes an interface system for extracting the region of an object viewed by a human from a view image sequence by analyzing the history of gaze points. All the gaze(More)
Polymer derived ceramic materials such as SiCN is gaining momentum because of its excellent thermo-mechanical properties at high temperatures. In addition, the electrical conductivity of SiCN can be tailored and characterized to suit specific application needs. These excellent properties make SiCN a best choice for sensor applications. SiCN has been used(More)
It is demonstrated that dry etching and ashing damage in porous silica low-k films is recovered by TMCTS (1, 3, 5, 7-tetramethylcyclotetra-siloxane) vapor post annealing. The increase in k-value after Ar/C/sub 5/F/sub 8//O/sub 2/ plasma etching was reduced from 35% to 6.5% of the initial value (k=2.25) by TMCTS annealing. The leakage current was also(More)
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