巻号一覧
129 巻, 6 号
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特集：ヒューマンサイエンスに関わるセンシング
特集論文
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林 貴宏, 尾内 理紀夫2009 年 129 巻 6 号 p. 173-180
発行日: 2009/06/01
公開日: 2009/06/01
ジャーナル フリーThis paper presents a support system for motion training for dances, sports, gestures, etc. In our previous study, we developed a prototype system for supporting motion training using motion caputure, i.e., marker tracking using a DV camera. The prototype system scores a user's motion by comparing tracking data of the user and a model with DP matching. The prototype system has a limit that it cannot accurately obtain acceleration of each part of the body because marker tracking using a DV camera cannot obtain three dimensional motion. By this limit, two different motions sometimes cannot be distinguished. For more effective motion training, in this study, we propose a system combining motion capture and acceleration sensors. We have examined the effectiveness of using acceleration sensors in motion training by comparing the proposed system with the prototype system. Experimental results have shown that two different motions can be more clearly distinguished by using the acceleration sensors.抄録全体を表示PDF形式でダウンロード (1074K) -
足立 善昭, 宮本 政和, 河合 淳, 上原 弦, 川端 茂徳, 佐藤 朋也2009 年 129 巻 6 号 p. 181-186
発行日: 2009/06/01
公開日: 2009/06/01
ジャーナル フリーWe are investigating an application of the biomagnetic measurement to non-invasive diagnosis of spinal cord function. Multichannel superconducting quantum interference device (SQUID) biomagnetometer systems for the measurement of the evoked magnetic field from spinal cords were developed as hospital-use apparatuses. The specific pattern transition of the spinal cord evoked field distribution was clearly observed. The conduction velocity of the cervical spinal cord, which is a significant information for the diagnosis of the dysfunction, was non-invasively estimated from the magnetic measurement.抄録全体を表示PDF形式でダウンロード (1257K)
特集研究開発レター
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川原 幸司, 朴 永鎰, 内田 雅文2009 年 129 巻 6 号 p. 187-188
発行日: 2009/06/01
公開日: 2009/06/01
ジャーナル フリーIn this report, we examined the relevance of the human physical oscillation and the recognition of the tactile apparent movement. EMGs caused by the human physical oscillation were measured in our research. Moreover, EMGs were analyzed by applying the short-time Fourier transform (STFT) and cluster analysis. As a consequence of comparing these analysis outputs with results of psychophysical experiment, the relevance of the human physical oscillation and the recognition of the tactile apparent movement was suggested.抄録全体を表示PDF形式でダウンロード (415K)
論文
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杉山 直, 植田 敏嗣, Joanna Pawlat2009 年 129 巻 6 号 p. 189-193
発行日: 2009/06/01
公開日: 2009/06/01
ジャーナル フリーThis paper describes laser spectroscopy using a photonic bandgap fiber as a gas cell. The photonic bandgap fiber has an air hole core about 10μm in diameter at its center. After passing the test gas and a laser beam through the core simultaneously, the absorption spectrum is measured by laser spectrometry. The new method has the following features compared with the conventional gas cell method or the white cell method:
1. Extremely small amounts of gas can be measured.
2. Stable and highly-sensitive measurement that is less subject to environmental fluctuation is possible.
This paper confirms the effectiveness of the new method by measuring the absorption spectrum of ammonia gas.抄録全体を表示PDF形式でダウンロード (727K)
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