著者

Hiroki Kurumatani Yuuki Inoue Satoshi Nishimura Masahiko Isaka Ryo Shimane Takuya Tanaka Seiichiro Katsura

出版者

The Institute of Electrical Engineers of Japan

雑誌

IEEJ Journal of Industry Applications (ISSN:21871094)

巻号頁・発行日

vol.8, no.4, pp.576-585, 2019-07-01 (Released:2019-07-01)

参考文献数

18

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High-speed and high-precision weighing is required in industrial and medical fields. Recently, medical services have improved rapidly and the demand for medicines have increased. Because improper medication can lead to life-threatening symptoms, precise filling and weighing all medicines are vital processes. On the other hand, there are requirements from suppliers to increase production volume. For this problem, Reduction the time by applying vibration-suppression control for a weighing cell is presented. The weighing cell exhibits oscillating responses as it has vibration mechanism inside. This vibration increases the weighing time and then reflected-wave rejection is introduced to suppress the vibration. Because reflected-wave rejection is a phase-stabilizing method, the controller attains a robustness against modeling errors. As a result, the weighing cell did not vibrate regardless of existence of a load. In addition, lift-up operations of vial bottles with water by the weighing cell were also conducted. The water surface did not fluctuate and immediately settled. Reflected-wave rejection certainly contributes to reducing the time for weighing.

著者

Satoshi Nishimura Takuya Ohzono Kohei Shoji Shin Yagihara Masafumi Hayashi Hisao Tanaka

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

vol.66, no.3, pp.235-249, 2017 (Released:2017-03-01)

参考文献数

39

被引用文献数

2 2

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Interfacial tension between edible oil and saline was measured under applied electric fields to understand the electrocapillary phenomena at the edible oil/saline interfaces. The electric responses of saline droplets in edible oil were also observed microscopically to examine the relationship between the electrocapillary phenomena and interfacial polarization. When sodium oleate (SO) was added to edible oil (SO-oil), the interfacial tension between SO-oil and saline decreased. However, no decrease was observed for additive-free oil or oleic acid (OA)-added oil (OA-oil). Microscopic observations suggested that the magnitude of interfacial polarization increased in the order of additive-free oil < OA-oil < SO-oil. The difference in electrocapillary phenomena between OA- and SO-oils was closely related to the polarization magnitude. In the case of SO-oil, the decrease in interfacial tension was remarkably larger for saline (pH 5.4~5.6) than that for phosphate-buffered saline (PBS, pH 7.2~7.4). However, no difference was observed between the electric responses of PBS and saline droplets in SO-oil. The difference in electrocapillary phenomena for PBS and saline could not be simply explained in terms of polarization magnitude. The ratio of ionized and non-ionized OA at the interfaces changed with the saline pH, possibly leading to the above difference.

著者

飯野 なみ 西村 悟史 西村 拓一 鈴木 美緒 福田 賢一郎 武田 英明 Nami Iino Satoshi Nishimura Takuichi Nishimura Mio Suzuki Ken Fukuda Hideaki Takeda

雑誌

人工知能学会研究会資料

巻号頁・発行日

vol.45, no.5, pp.1-4, 2018-08-03

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This paper describes graphic representation of the process of action based on guitar rendition ontology. We have systematized the knowledge of classical guitar for learning and teaching support, and developed guitar rendition ontology. The ontology defines action process of each rendition by using several properties. However, it is difficult to understand intuitively for players because the ontology presents specific description form. Therefore, in this study, we extracted the knowledge relevant to action from guitar rendition ontology and described action processes by graphical representation.