著者

勝木 桂子 相原 直彦 伊達 裕 武村 珠子 住田 善之 和田 光代 鎌倉 史郎 下村 克朗

出版者

Japanese Heart Rhythm Society

雑誌

心電図 (ISSN:02851660)

巻号頁・発行日

vol.17, no.3, pp.291-300, 1997-05-25 (Released:2010-09-09)

参考文献数

19

被引用文献数

1

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心室内伝導障害例での持続型心室頻拍 (SVT) の発生予知に時間解析法による加算平均心電図 (SAEOG) が有用であるかを検討した.SAECGを施行した心室内伝導障害例70例を, 12誘導心電図から右脚ブロック型を示す36例 (RBBB群) と左脚ブロック型を示す34例 (LBBB群) に分類し, SVTの既往の有無 [SVT (+) 群, SVT (-) 群] でSAEOG各指標を検討した.RBBB群ではTQRSD, LAS40, RMS40の3指標とも, LBBB群ではRMS40のみでSVT (+) 群とSVT (-) 群との間に有意差が認められた.SVT (+) 群を分離するための診断基準は, RBBB群ではTQRSD≧160mseo, LAS40≧40mseo, RMS40≦14μVとなり, 川頁に感度77%, 85%, 77%, 特異性78%, 70%, 74%で, LBBB群ではRMS40≦14μVとなり, 感度82%, 特異性87%で良好な診断精度であった.以上より, SAEOG各指標はLPの診断基準を新たに設定することにより, 心室内伝導障害例においてもSVTの予知が可能であると結論される.

著者

角田 祐輔 末岡 裕一郎 和田 光代 大須賀 公一

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.55, no.8, pp.507-515, 2019 (Released:2019-08-10)

参考文献数

18

被引用文献数

6

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In this paper, we deal with the control problem to manipulate autonomous multiple agents (a flock of sheep) escaping from an agent (a sheepdog) according to nonlinear interaction. This work was motivated by so-called sheepdog system inspired by sheepdog shepherding: a flock of several thousands of sheep are controlled by only a few sheepdogs in the real world. It is an interesting control system because one or more sheepdogs, who act as a small number of controllers, can control many sheep that cannot be directly controlled, taking advantage of their own maneuverability. For this reason, there have been many studies about this system; however, these studies have been limited to building numerical models or performing simulation analyses. Therefore, we aim to clarify the control principle theoretically. For this purpose, we conduct theoretical analysis for a sheepdog-type navigation system which we design based on a flock control model proposed by Vaughan et.al. in the case that one sheep is controlled by a sheepdog. Moreover, we also demonstrate the results by using simulations to confirm the validity of the analysis.

著者

角田 祐輔 末岡 裕一郎 和田 光代 大須賀 公一

出版者

一般社団法人 システム制御情報学会

雑誌

システム制御情報学会論文誌 (ISSN:13425668)

巻号頁・発行日

vol.34, no.7, pp.191-198, 2021-07-15 (Released:2021-10-15)

参考文献数

19

被引用文献数

2

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This paper constructs a control system in which one highly mobile agent navigates autonomous multiple agents escaping from the agent according to nonlinear interaction. This study is motivated by the sheepdog system: a flock of thousands of sheep are controlled by only a few sheepdogs. Inspired by the sheepdog system, we have proposed a control law of a sheepdog to solve the problem of one sheep converging on a circular trajectory around a goal by one sheepdog, which is called the mobile control. In this paper, we extend this controller to applicable to a flock of sheep by treating multiple sheep as “a disc with a certain flock radius”. This paper deals with the problem of navigating a flock of sheep to converge their centers of gravity on a circular trajectory around a goal position. For this problem, we propose a flock model of sheep and an extended mobile control designed by considering the suitable distance between a sheepdog and a center of the flock. Finally, we verified the validity of the proposed method through numerical simulation and robot demonstrations.

著者

和田 光代 石崎 麻子 小野 敏郎 黒部 能幸

出版者

一般社団法人 システム制御情報学会

雑誌

システム制御情報学会論文誌 (ISSN:13425668)

巻号頁・発行日

vol.9, no.5, pp.249-251, 1996-05-15

参考文献数

5

被引用文献数

2

著者

松生 香里 福嶋 利浩 和田 光代 豊岡 示朗

出版者

大阪体育大学

雑誌

大阪体育大学紀要 (ISSN:02891190)

巻号頁・発行日

vol.32, pp.33-39, 2001-07-01

被引用文献数

1

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The physiological factors that relate to 5000 m running performance were studied in 36 male distance runners of three different groups (14 min, 15 min and 16-17 min). Subjects underwent a test to determine the relationships among 5000 m performance (average velocity of 5000 m : V_<5000>), aerobic power, and blood lactate accumulation. The liner relationship was found to exist between V_<5000> and aerobic power (r = 0.562, p < 0.001). Also the relationship was found to exist between V_<5000> and VOBLA (r = 0.867, p < 0.001). VOBLA appeared from 90 to 101% of V_<5000> at any groups and the average of each group was about 96%. To investigate whether this result can be useful for training or not, 12 subjects were performed to run with 90, 92.5 and 95% of V_<5000> by interval training method (5 × 4 minutes running with 90 second recovery). In the 90% of V_<5000> blood lactate was steady with 3.0 mM, and it appeared around 4.0 mM in the 92.5% velocity of V_<5000>. However, in the 95% of V_<5000> blood lactate was above 4.0 mM from initial stage and was gradually increased as the trial was passed. From these results, it was suggested that 92.5% of V_<5000> was optimal velocity to lead to VOBLA.