著者
増田 正裕 小村 啓
出版者
公益財団法人 日本醸造協会
雑誌
日本醸造協会誌 (ISSN:09147314)
巻号頁・発行日
vol.88, no.1, pp.29-33, 1993-01-15 (Released:2011-09-20)
参考文献数
44

近年著しい発展をとげている分析法や解析法によって, 複雑きわまりないウィスキーの香味もその内容が次第に明らかになりつつある。「香気成分とその由来」「香気成分分析手法の最近の話題」「官能評価と成分の寄与」の3回シリーズでウィスキーの味, 香りを著者の研究を含めて解説していただいた。
著者
横山 綾亮 小村 啓 坪井 諭之 大岡 昌博
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日
pp.18-00283, (Released:2018-10-30)
参考文献数
13

Hardness representation in VR is one of the important problems to create virtual touch feeling as if the feeling is caused by real touch. In this study, we are attempting to improve the hardness representation method by combining the pseudo-haptics and tactile stimuli, which was presented in our previous research. In the current study, we investigated the ability of both of these methods to express tactile hardness stimulation: in Experiment A hardness was generated solely by visual stimulation using CG; and in Experiment B hardness was generated solely by the dot-matrix display. Based on the results of Experiments A and B, in Experiment C we conducted psychophysical experiments on the ability to express tactile hardness by combining the effects of pseudo-haptics and the tactile stimuli. In Experiment C, we were able to express six levels of distinguishable hardness, while only four and two levels were observed in Experiments A and B, respectively. In addition, the relationship between hardness evaluation and the six levels shows high linearity with R2 = 0.98.
著者
小村 啓 大岡 昌博
出版者
一般社団法人 日本機械学会
雑誌
IIP情報・知能・精密機器部門講演会講演論文集 2014 (ISSN:24243140)
巻号頁・発行日
pp._G-1-4-1_-_G-1-4-2_, 2014-03-18 (Released:2017-06-19)

In virtual reality (VR) study, there are two ways active and passive touches to explore a virtual object with the tactile mouse. There is an issue "which is superior active or passive touch?" The active touch is to touch and perceive an object actively, while the passive touch is to touch and perceive a change of an object passively. The purpose of this study is to evaluate a perception precision in active and passive touches to clarify the best exploration method. This experiment is exploring the degree of leaning of the edge line using the tactile mouse in the virtual space. We develop a new tactile display called a palm tactile mouse and evaluate the perception precision using an angle difference-threshold and a judgment probability-function calculated by constant method of the psychophysical experiment. As a result, we confirmed that perception precision is the best when explore speed is 90 mm/s, and the active touch is not different from the passive touch.