著者
國政 秀太郎 瀬尾 恭一 下田 宏 石井 裕剛
出版者
ヒューマンインタフェース学会
雑誌
ヒューマンインタフェース学会論文誌 (ISSN:13447262)
巻号頁・発行日
vol.17, no.4, pp.395-410, 2015-11-25 (Released:2019-07-01)
参考文献数
26

In order to evaluate intellectual productivity such as the efficiency of performing mental works, several studies have been conducted where the operational logs of mental tasks were evaluated. However, it is also necessary to analyze Cognitive Load in mental workers so that the productivity can be evaluated accurately. The authors therefore have proposed a Performance-Cognitive Load model which deals with both task performance and Cognitive Load. By using the model, they have also developed the inference method of the cognitive working states which can evaluate intellectual productivity in more detail than conventional methods. The operational logs of mental tasks as well as pupil diameter and heart rate of the worker were employed as input of this method. As the result of the subject experiment, the authors found that the feasibility of this method so as to evaluate cognitive working states could be suggested and this method could well explain the detail changes of their states. This method is expected to be the novel evaluation method of intellectual productivity.
著者
藤野 秀則 石井 裕剛 下田 宏 吉川 榮和
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌C(電子・情報・システム部門誌) (ISSN:03854221)
巻号頁・発行日
vol.128, no.1, pp.11-23, 2008-01-01 (Released:2008-01-01)
参考文献数
39

For the sustainable society, organization management not based on the mass production and mass consumption but having the flexibility to meet to various social needs precisely is required. For realizing such management, the emploees' work morale is required. Recently, however, the emploees' work morale is tend to decrease. Therefore, in this study, the authors developed the model of the method for promoting and keeping employees' work morale effectively and efficiently. Especially the authors thought “work morale” of “attitude to the work”. Based on this idea, it could be considered that the theory of the persuasion psychology and various persuasion techniques. Therefore, the model of the method applying the character agent was developed based on the forced compliance which is one of persuasion techniques based on the theory of the cognitive dissonance. By the evaluation experiment using human subjects, it was confirmed that developed method could improve workers' work morle effectively.
著者
外川 拓 石井 裕明 朴 宰佑
出版者
日本マーケティング学会
雑誌
マーケティングジャーナル (ISSN:03897265)
巻号頁・発行日
vol.35, no.4, pp.72-89, 2016-03-31 (Released:2020-04-21)
参考文献数
33
被引用文献数
1 1

近年の研究では,本来,消費者の判断と直接的に関連していない触覚情報,すなわち非診断的触覚情報が,意思決定に無意識のうちに影響を及ぼすことが明らかにされている。本稿では,非診断的触覚情報のなかでも特に硬さと重さに注目し,これらが消費者の意思決定に及ぼす影響について,身体化認知理論をもとに考察した。硬さに注目した実験1と実験2では,硬さの経験が本来関連のない製品に対する知覚品質を向上させたり,サービスの失敗に対する金銭的補償の要求水準を高めたりすることが明らかになった。重さに注目した実験3と実験4では,重さの経験が本来関連のない製品に対する信頼性や製品情報に関する記憶想起を高めることが明らかになった。最後に,これらの結果を踏まえ,本研究の意義と課題について議論を行った。
著者
横山 顕 高木 俊和 石井 裕正 村松 太郎 樋田 哲夫 丸山 勝也 加藤 眞三 武井 泉 土屋 雅春
出版者
一般社団法人 日本糖尿病学会
雑誌
糖尿病 (ISSN:0021437X)
巻号頁・発行日
vol.34, no.5, pp.395-402, 1991-05-30 (Released:2011-08-10)
参考文献数
28

自律神経障害と末梢神経障害は糖尿病とアルコール依存症の両者にみられる.アルコール依存症を合併した糖尿病 (DM・AL: n=68) の神経障害を, 糖尿病 (DM: n=50) とアルコール依存症 (AL: n=22) の神経障害と比較した.DM・AL, DM, AL各群のR-R間隔変動係数 (CVRR) は2.37±1.22, 2.80±1.08, 3.36±1.03, CVRR<2.0の頻度は49%, 22%, 9%であり, DM・ALで自律神経障害が高頻度であった.アキレス腱反射の減弱は50%, 32%, 23%, 振動覚の低下は47%, 24%, 9%に認められ, 末梢神経障害の頻度もDM・ALで高かった.糖尿病罹病期間3年以下では, DM・ALはDMに比し, 網膜症の頻度には差がなく, CVRRの低下, 振動覚の低下の頻度は高率であった。DM・ALでは, 脳萎縮ないし痴呆症等の中枢神経障害のある群で自律神経障害が高頻度にみられた.糖尿病とアルコール依存症の合併では, 両者の神経障害が相乗的に作用し, 自律神経障害と末梢神経障害が早期から進行することが示唆された.
著者
岩﨑 涼太 杉山 剛 石井 裕貴 五十嵐 賢 増山 敬祐 杉田 完爾
出版者
日本小児耳鼻咽喉科学会
雑誌
小児耳鼻咽喉科 (ISSN:09195858)
巻号頁・発行日
vol.36, no.1, pp.15-20, 2015 (Released:2015-06-20)
参考文献数
17

【背景】年少の閉塞性睡眠時無呼吸症候群(OSAS)患者には成長障害の合併が多いが,アデノイド口蓋扁桃摘出術(AT)前後の身体発育に関して 7 歳以下の報告は少ない。【目的】7 歳以下の OSAS 患者に対する AT の身体発育への影響を明らかにする。【方法】対象は19名(男女比13:6)。Type 3 簡易 PSG で無呼吸低呼吸指数(AHI)≧5 でアデノイド増殖・口蓋扁桃肥大を有する小児を OSAS と診断し,AT 後 3,6,12ケ月の身体発育を検討した。【結果】AT 後に AHI は有意に低下した(18.9±15.3 vs 3.4±1.6)。BMI パーセンタイルは AT 後 3 ケ月で有意に増加し(43.9±26.1 vs 55.6±22.5),身長 SD スコアは AT 後12ケ月で有意に増加した(−0.26±0.94 vs 0.006±0.63)。【結論】7 歳以下の OSAS 患者では AT 後,体重増加が先行し,身長は遅れて増加した。
著者
石井 裕 内田 龍男 和田 正信
出版者
The Japan Society of Applied Physics
雑誌
応用物理 (ISSN:03698009)
巻号頁・発行日
vol.47, no.3, pp.216-218, 1978

The electrooptic characteristics of cholesteric-nematic mixtures were studied in relation to surface alignment, layer thickness (<i>d</i>) and helical pitch (<i>p</i>). It was made clear that their characteristics could be consistently understood by taking the ratio (<i>d</i>/<i>p</i>) of layer thickness to helical pitch into consideration, and the optimum value of <i>d</i>/<i>p</i> for display devices was about 0.7 for the parallel-aligned cell (parallel cell) and about 0.5 for the vertical-aligned cell (vertical cell).
著者
高林 範子 小野 光貴 渡辺 富夫 石井 裕
出版者
一般社団法人 日本人間工学会
雑誌
人間工学 (ISSN:05494974)
巻号頁・発行日
vol.50, no.2, pp.84-91, 2014-04-15 (Released:2014-05-16)
参考文献数
11
被引用文献数
1 2

著者らは,看護コミュニケーション教育を支援する目的で,仮想病室に患者と看護実習生役のアバタを実装した身体的バーチャルコミュニケーションシステムを開発し,有効性を示した.本システムは,対話者のノンバーバル情報に基づいて対話者の化身であるアバタのノンバーバル行動を生成し,仮想病室で対話者相互のアバタのインタラクションを観察しながらコミュニケーションできるシステムである.5組10人の看護学生を対象に,システムを用いたロールプレイングによるコミュニケーション実験を行い,官能評価,自由記述内容の結果,「役になりきれた」「対話しやすさ」「システムを使用したい」などの項目で肯定的に評価され,看護学生同士の対面でのロールプレイングよりも有効であることが示された.患者体験ができ,役になりきることが可能なシステムであることが確認され,本システムによる新たな看護コミュニケーション教育支援の活用可能性が示された.
著者
小林 稔 石井 裕
出版者
一般社団法人情報処理学会
雑誌
情報処理学会研究報告グループウェアとネットワークサービス(GN) (ISSN:09196072)
巻号頁・発行日
vol.1993, no.34, pp.43-50, 1993-04-28
被引用文献数
4

ClearBoardは、従来マルチウィンドウ等によって別々に提供されていた協同作業空間と会話空間を連続的に統合した新しいコラボレーションメディアである。本稿では最初に、「透明なガラス板」を通して会話しガラス板の上に両側から描画するメタファーに基づくClearBoardの基本コンセプトを示す。続いてビデオ協同描画によるプロトタイプClearBoard?1から、コンピュータ協同描画によるClearBoard?2に至るデザインの過程を示す。また、ClearBoard?2のコンピュータ協同描画を実現するグループウェアTeamPaintのデザインも示す。最後にプロトタイプを使用して得られた知見を報告する。ClearBoard is a new collaboration medium that seamlessly integrates the shared workspace and interpersonal space which have been provided separately with arbitrary multi-window or multi-screen interfaces in existing multi-media teleconference systems. We present the key concept of ClearBoard that is based on the metaphor of "talking through and drawing on a transparent glass window." Then, we describe the design evolution from video based prototype ClearBoard-1 to computer based prototype ClearBoard-2. The design of TeamPaint, a shared painting editor used in ClearBoard-2, is also described. Finally, some initial findings from the experimental use of the prototype systems are reported.
著者
石井 裕
出版者
一般社団法人情報処理学会
雑誌
情報処理 (ISSN:04478053)
巻号頁・発行日
vol.39, no.8, pp.745-751, 1998-08
被引用文献数
23

今日のGUI(Graphical User Interface)の基本概念は30年以上前に生まれた.GUIは情報を"Painted Bits"(ピクセル)としてスクリーンに視覚化する.このGUIの次にくるHCI(Human Computer Interaction)のパラダイムとして, 筆者らは"Tangible Bits"のビジョンを実体化する研究を, MIT Media Labにおいて進めている.Tangible Bitsは, bits(オンライン・ディジタル情報)の世界からatomsの世界(物理世界)への回帰と融合を目指すものであり, tactility(感触)とperipheral sense(気配)を基軸とした, 新しいインターフェース・デザインを展開している.本稿では, 次世代のインターフェース・ビジョン"Tangible Bits"を, 具体的なデザイン例を通して紹介する.そして, 我々の肉体が存在する建築空間そのものを, 人間とサイバースペースとのインターフェースに変えていくという, 新しい方向を提案する.
著者
伊藤 京子 古田 真也 上東 大祐 石井 裕剛 下田 宏 大林 史明 谷口 和宏
出版者
ヒューマンインタフェース学会
雑誌
ヒューマンインタフェース学会論文誌 (ISSN:13447262)
巻号頁・発行日
vol.21, no.2, pp.235-244, 2019-05-25 (Released:2019-05-25)
参考文献数
24
被引用文献数
1

In order to improve intellectual concentration, few studies have verified the effect of indoor airflow among the thermal environment conditions, and the differences in effects have not been studied based on the season. In this study, an experiment was conducted to investigate the influence of a room airflow in winter on intellectual concentration. As a result, no significant difference of intellectual concentration was found between a condition with airflows and a condition without airflows. The thermal sensation vote showed that the airflows caused the participants to feel colder and it is the same as the results of an experiment in summer, although the intellectual concentration was not improved in winter. In addition, covariance structure analysis was carried out to analyze the effects for intellectual concentration. The participants were classified into two groups. A group improved intellectual concentration by the airflows and another group did not improve it. The former group showed that the airflows caused the comfortable feeling of the room and the latter group showed the airflows caused the feeling of coldness. It was shown that different persons like different airflows from the results. One of our future challenges is to provide each person a controllable airflow.
著者
小林 真貴子 石井 裕泰 藤原 斉郁 笠間 清伸
出版者
公益社団法人 土木学会
雑誌
土木学会論文集 (ISSN:24366021)
巻号頁・発行日
vol.79, no.7, pp.22-00246, 2023 (Released:2023-07-20)
参考文献数
16

セメント改良地盤の品質は地盤の不均質性や固化材の混合性などの影響を受けるため,適切な品質管理が求められる.一軸圧縮試験による現行の品質管理が,サンプリングされた供試体による標本調査に基づく強度把握であるのに対し,一軸圧縮試験では把握できない弱部の有無や連続的な強度分布を確認できる方法として針貫入試験がある.本研究では,針貫入抵抗値から一軸圧縮強さを推定する式に論理性を加えて,針貫入試験による強度推定精度の向上を目指している.本論文では,まず机上型装置での多点測定に基づく新たな推定の考え方を提案し,次にその検証のために,供試体作製法や強度の範囲が異なる種々のセメント改良土を対象に測定を行った.最後にその結果を用いて,具体的な推定式を提示し,提案推定方法の妥当性や推定精度の向上を確認した.
著者
石井 裕子 滝山 一善
出版者
一般社団法人 日本調理科学会
雑誌
日本調理科学会誌 (ISSN:13411535)
巻号頁・発行日
vol.33, no.3, pp.372-376, 2000-08-20 (Released:2013-04-26)
参考文献数
19
被引用文献数
1

Three kinds of sesame seed samples (washed and dried seeds, roasted seeds and dehulled seeds)were pulverized by a cooking mixer. The free oxalic acid in each sample was extracted into boiling water, and the total oxalic acid was extracted into 0.5 M hydrochloric acid. The concentration of oxalic acid in the extract was determined by ion chromatography. The amounts of total and free oxalic acid in 100 g of dried sesame seeds were found to be 1,750 mg and 350 mg, respectively, and 100mg and 50 mg, respectively, in 100g of dehulled sesame seeds. The difference between the total and free oxalic acid gave the content of calcium oxalate in the sesame seeds. The calcium oxalate contents per 100 g of dried and dehulled sesame seeds were respectively 2,323 mg and 83 mg as the monohydrate, this corresponding to 636 mg and 23mg of calcium. Almost all of the calcium oxalate was contained in the hulls of the dried sesame seeds. The total calcium per 100g of dried sesame seeds was determined as 1,210 mg, with 636 mg of calcium fixed as the oxalate. The remaining 574 mg of calcium are considered to be available for easy digestion. The calcium oxalate crystals in the hulls of the sesame seeds were aggregated particles composed of longish hexagonal plate crystals and were estimated as the monohydrate.
著者
國政 秀太郎 宮城 和音 下田 宏 石井 裕剛
出版者
ヒューマンインタフェース学会
雑誌
ヒューマンインタフェース学会論文誌 (ISSN:13447262)
巻号頁・発行日
vol.16, no.1, pp.41-50, 2014-02-25 (Released:2019-07-01)
参考文献数
27

Several studies aimed at evaluating intellectual productivity and specially designed tasks were given. However, the result may not be reflected the actual intellectual productivity because the designed tasks are different from office works. Meanwhile, there are two mental states (work and temporary rest state) in office workers which are changing alternatively during mental work. If the mental states of the workers can be detected, the productivity can be measured more accurately. In this study, the authors aimed at developing a detection method of temporary rest state while performing mental works by measuring physiological indices such as EEG, ECG, and EMG of extraocular muscles and orbicularis oculi muscle. From these measured indices, the authors extracted 6 features which were alpha and beta brain waves, low and high frequency waves of heart rate, and the intervals of eye blink and saccade eye movement. They were used to detect a temporary rest state by using Mahalanobis Discrimination Analysis. As a result of the subject experiment, it was found that the detection accuracy was 80.2%. This result shows the possibility to use the physiological indices as one of the mental state detection methods.
著者
横田 真斗 久富 彩音 石井 裕 渡辺 富夫
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.22-00228, (Released:2023-02-22)
参考文献数
25

Focusing on the correlation between speech sounds and body movements, we developed a voice-driven embodied entrainment character called InterActor that automatically generates communicative motions from speech, and demonstrated the effectiveness of the system. We also developed a communication agent that responds appropriately to utterance contents by focusing on words in speech using speech recognition. However, these systems simply generate body motions from the burst-pause of speech. The response actions corresponding to speaker’s speech speeds were not considered. In this paper, we analyze the relationship between an individual’s speech activity and speech speed[mora/s] from various speech experiments with the aim of facilitating speech according to speaker’s speech characteristics. We develop a voice-driven embodied entrainment system which performs nodding with different speeds according to speech speeds based on speech recognition. Based on the results of the speech experiments, we conduct an online evaluation experiment using videos of multiple speakers with different speaking speeds using the robot as a platform to verify the effectiveness of the response actions generated by the system.
著者
山崎 裕之 石井 裕 渡辺 富夫
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.22-00046, (Released:2022-09-09)
参考文献数
21

For the elderly, the act of “speaking” is important to maintain their physical function. It is known that the listening with nods and giving responses are important to encourage utterances. Also, in elderly nursing homes, conversations are often started when they look at images. We have developed a speech-driven embodied entrainment character called “InterActor” which automatically performs communicative motions such as nodding based on voice input, and have demonstrated the effectiveness of nodding reaction. In this study, we propose a listening system that promotes utterances by recognizing the user’s speech contents by voice input, and presenting images related to the words in speech on the display, and giving nodding reaction from the listener’s InterActor and images. This system has a function to support the intention to listen by having the listener’s InterActor to turn around to the image at the time of display and to gaze it jointly. To verify the effectiveness of this system, a comparative experiment and a sensory evaluation experiment were conducted on care workers at an elderly nursing home under the two conditions, one with or without of nodding image, and another with or without of the word image from the utterance. As a result, it was confirmed that the listening effect by image presentation and nodding motion has an utterance promoting effect that makes it easier for the user to speak.
著者
森川 大輔 石井 裕 渡辺 富夫
出版者
ヒューマンインタフェース学会
雑誌
ヒューマンインタフェース学会論文誌 (ISSN:13447262)
巻号頁・発行日
vol.22, no.4, pp.403-410, 2020-11-25 (Released:2020-11-25)
参考文献数
16

In a face-to-face verbal communication, listener’s movements such as nod ding and body motions are interactively synchronized with a speaker’s speech. We have developed a group communication system that uses multiple ”InterActors” that generate communicative motions such as nodding based on the rhythm of utterance like audiences in a VR (Virtual Reality) classroom. The sound environment has a psychological effect on the classroom space. For example, previous studies have shown that the acoustic environment of the classroom affects the learning efficiency of students in the classroom. It may be easier to speak in a noisy environment, such as a classroom break, than speaking in a quiet space. In this paper, we developed a speech support system based on a noisy environment generated by arranging a listener’s InterActor and multiple non-participant characters that were not involved in the conversation, and evaluated the effects of the InterActor’s nodding and back-channel in the noisy environment. As a result, type of noise would give users a different feel, which suggests individual differences in the perception of the appropriate volume for each type of noise. Thus, we analyzed and evaluated the effect of the type of noise and the presence or absence of non-participants on speech by changing the volume of the noise and selecting an appropriate volume in individuals for users. As a result, we verified the effect of the noise environment on the speech.