著者

鈴木 一隆 豊田 晴義

出版者

一般社団法人 映像情報メディア学会

雑誌

映像情報メディア学会誌 (ISSN:13426907)

巻号頁・発行日

vol.61, no.12, pp.1774-1778, 2007-12-01 (Released:2010-01-29)

参考文献数

15

被引用文献数

1 3

---

High-speed,minute eye movements such as ocular microtremors(OMTs),flicks and saccades contain important information about the health of the subject.Since OMTs have a frequency as high as 100 Hz and minute angular displacement as low as 0.01 degree,measuring the speed and position of OMTs with adequate accuracy under non-contact conditions in the long-term is difficult.To measure a living sample stably and reliably,we have developed a novel system for measuring eye movement by combining an intelligent vision system and the corneal reflex method.The intelligent vision system has both high-speed and real-time parallel image processing capabilities,which measure to a high level of precision at 1 KHz.We have carried out basic experiments usinga simulated eye in conjunction with experiments on OMTs and saccade measurements.The results of these experiments confirmed that such a system is sufficiently accurate.

著者

早坂 大亮 鈴木 一隆 是永 知子 諸岡(斎藤) 歩希 野村 拓志 深澤 圭太 Francisco Sánchez-Bayo 五箇 公一

出版者

日本農薬学会

雑誌

日本農薬学会誌 (ISSN:21870365)

巻号頁・発行日

vol.38, no.2, pp.101-107, 2013-08-20 (Released:2014-03-01)

参考文献数

36

被引用文献数

6 10

---

The effects of two successive annual treatments of imidacloprid and fipronil on dragonfly nymph communities, which are one of the best-known bioindicators in Japanese agroecosystems, were monitored in experimental paddies. The abundance of dragonfly nymphs was lower in both insecticides-treated fields than it was in the controls, particularly following fipronil treatments. Residues of both insecticides were found in the soil throughout the two years, and imidacloprid persisted in water up to three months following each treatment. A Principal Response Curve analysis (PRC) showed that the second annual treatments caused greater structural changes in dragonfly nymph communities than the initial treatments caused, particularly for fipronil. The community structures continued to change even after the insecticides dissipated from the water. This suggests that ecological impacts, and therefore risks, of imidacloprid and fipronil on dragonfly nymph communities depend more on soil residues than they do on waterborne residues. As expected, susceptibility of dragonfly nymphs to these two insecticides differed among species.

著者

鈴木 一隆 江田 英雄

出版者

一般社団法人 経営情報学会

雑誌

経営情報学会 全国研究発表大会要旨集

巻号頁・発行日

vol.2013, pp.228-231, 2013

---

日本経済を牽引してきた製造業を中心としたビジネスモデルが通用しなくなっている。戦後復興の名のもと、欧米製品を手本・目標に、勤勉さと労働賃金の低さを優位性に市場を席巻したビジネスモデルをいまや韓国、台湾、中国、インドに仕掛けられる立場になったためである。三兆円超の医療機器市場は高成長市場でもあり、中小企業のみならず大企業までも医療機器市場に参入を進めている。中小の新規参入者は、開発力、資金力、豊富なラインナップを有する強力な世界企業の居ない場所を開拓せざるを得ない。本研究ではこうした中小企業がとるべき戦術を、他業界への参入と比較して考察する。

著者

鈴木 一隆 豊田 晴義

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.61, no.12, pp.1774-1778, 2007-12-01

被引用文献数

4 3

---

High-speed, minute eye movements such as ocular microtremors (OMTs), flicks and saccades contain important information about the health of the subject. Since OMTs have a frequency as high as 100Hz and minute angular displacement as low as 0.01 degree, measuring the speed and position of OMTs with adequate accuracy under non-contact conditions in the long-term is difficult. To measure a living sample stably and reliably, we have developed a novel system for measuring eye movement by combining an intelligent vision system and the corneal reflex method. The intelligent vision system has both high-speed and real-time parallel image processing capabilities, which measure to a high level of precision at 1KHz. We have carried out basic experiments using a simulated eye in conjunction with experiments on OMTs and saccade measurements. The results of these experiments confirmed that such a system is sufficiently accurate.