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Your search keyword '"Tokunaga, Yukio"' showing total 28 results
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28 results on '"Tokunaga, Yukio"'

1. Prompter '∙' Based Creating Thinking Support Communication System That Allows Hand-Drawing

Author

Chen, Li Jen, Ohya, Jun, Yonemura, Shunichi, Forstmann, Sven, Tokunaga, Yukio, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Jacko, Julie A., editor

Published
2009
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2. Communication Analysis of Visual Support System That Uses Line Drawing Expression

Author

Yonemura, Shunichi, Yoshida, Tohru, Tokunaga, Yukio, Ohya, Jun, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Smith, Michael J., editor, and Salvendy, Gavriel, editor

Published
2007
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5. Preclinical validation of the new vitrification device possessing a feature of absorbing excess vitrification solution for the cryopreservation of human embryos

Author

Takahashi, Nozomi, primary, Harada, Miyuki, additional, Oi, Nagisa, additional, Izumi, Gentaro, additional, Momozawa, Kenji, additional, Matsuzawa, Atsushi, additional, Tokunaga, Yukio, additional, Hirata, Tetsuya, additional, Fujii, Tomoyuki, additional, and Osuga, Yutaka, additional

Published
2020
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7. Reaction of difluoromethyl phenyl selenoxide with acetic anhydride. A route to difluoro(phenylseleno)methylation of ethers

Author

Uneyama, Kenji, Maeda, Kazuhiro, Tokunaga, Yukio, and Itano, Nobuaki

Subjects
Selenium compounds -- Research, Acetic anhydride -- Research, Ethers -- Research, Biological sciences, Chemistry
Abstract

Cyclic ethers and sulfides mediate the reaction between acetic anhydride and difluoromethyl phenyl selenoxide, that results in a good yield of alkyl acetates. This reaction suggests a pathway for the difluorophenylselenomethylation of ethers involving Pummerer type rearrangement, the formation of difluorocarbene and oxonium ylide and phenylselenenyl acetetate-mediated trapping.

Published
1995

16. Prompter ˵·″ Based Creating Thinking Support Communication System That Allows Hand-Drawing.

Author

Chen, Li Jen, Ohya, Jun, Yonemura, Shunichi, Forstmann, Sven, and Tokunaga, Yukio

Abstract

Research into creative thinking-support tools and communication is commonly focused on how to develop and share ideas between participants or with others. In this paper, we proposes a creative thinking support method that utilizes randomly generated visual prompter (black circle) image patterns (VP-patterns) and free hand-drawing and writing functions. Concepts and ideas of the research have been explained together with the development of the systems (CSP1 and CSP2). Experiments have been conducted in order to evaluate the potentials and effectiveness of the system. From the results, a tendency towards inspiring creative ideas by participants has been observed. [ABSTRACT FROM AUTHOR]

Published
2009
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17. Communication Analysis of Visual Support System That Uses Line Drawing Expression.

Author

Hutchison, David, Kanade, Takeo, Kittler, Josef, Kleinberg, Jon M., Mattern, Friedemann, Mitchell, John C., Naor, Moni, Nierstrasz, Oscar, Pandu Rangan, C., Steffen, Bernhard, Sudan, Madhu, Terzopoulos, Demetri, Tygar, Doug, Vardi, Moshe Y., Weikum, Gerhard, Smith, Michael J., Salvendy, Gavriel, Yonemura, Shunichi, Yoshida, Tohru, and Tokunaga, Yukio

Abstract

This paper proposes a system that automatically deforms the images transmitted in both directions so as to achieve two goals: easing the concerns of users and ensuring well enough support. We examine here the effect of visual information quality on the effectiveness and impression of collaboration between a novice user and an operator. [ABSTRACT FROM AUTHOR]

Published
2007
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25. Mental Model on Telephone Operation.

Author

Matsui, Hiroyuki, Yokota, Hiroyuki, and Tokunaga, Yukio

Subjects
TELEPHONE systems, USER interfaces, MENTAL models theory (Communication), COMPUTER systems, COMPUTER networks, COMPUTER software, FLOW charts
Abstract

According to the recent research results on the user interface, the user forms a certain mental model in the operation of an unknown function. However, it is not known, when the function is not satisfactory in the first trial, by what process the mental model is constructed. From such a viewpoint, the authors investigated experimentally the formation of the mental model in the advanced dialing function called directory dialing. The following observations were made as a result. (1) The mental model is constructed only from the operation knowledge already acquired by the user. (2) When the mental model constructed in the first trial is not acknowledged, the mental model is reconstructed by the following order: ① repeat of the same operation; ② change operation speed; and ③ change the operation procedure. Using these observations, the formation of the mental model in the directory dialing is represented in a flowchart. [ABSTRACT FROM AUTHOR]

Published
1988
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26. Introduction of Interleaving in Packet Voice Communications.

Author

Matsuo, Naoki, Yuito, Mitsuhiro, and Tokunaga, Yukio

Subjects
PACKET radio transmission, DATA transmission systems, NETWORK performance, TELECOMMUNICATION systems, ELECTRONICS, COMMUNICATION
Abstract

Introduction of an interleaving method in packet voice communications, called packet interleaving, is proposed as a means to reduce speech quality deterioration caused by packet losses. This interleaving method and methods of substituting for missing samples, are evaluated by subjective tests. The results show that the packet interleaving can reduce speech quality degradation significantly if the values of samples which are missing are replaced with the mean values of their adjacent samples. [ABSTRACT FROM AUTHOR]

Published
1989
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