Task Characteristics that Determine the Virtual Interactions of Teams: Implications for Effective Use of Digital Tools

近年，わが国の企業ではデジタルトランスフォーメーション（DX）の推進を背景に，多様なデジタルツールが職場に導入されている。本研究では，職務遂行チームでデジタルツールを使用して交わされるバーチャルな相互作用に対し，課題特性が及ぼす影響を探索的に検討した。既往知見に基づき，バーチャル性認知（バーチャルな相互作用の指標）や課題特性などに関する質問項目を作成した。Web調査で収集した大都市部の企業に勤務する正社員360 名の回答を分析した結果，課題特性の影響は企業規模に応じて異なる傾向を示した。中小規模の企業では，「相互依存性」や「自律性」の課題特性が相互作用の活性化へ直接的に作用していた。一方，大規模の企業では，「多様性」や「自律性」の課題特性は、デジタルツールの使用が相互作用の活性化をもたらすための限定条件として機能することが示唆された

Study on seam carving for image fingerprint

In past several years many image contents are distributed via internet. But illegal copy problem are rise up. Multimedia fingerprint techniques are tools for resist illegal copy. However today collusion attack such as average attack is appeared. Collusion attack is efficient method for breaking copyright protection scheme of image fingerprint. This paper presented an image fingerprint scheme to resistant collusion attack which is average attack especially. Proposed image fingerprint scheme is applied seam carving technique. Experimental results show that proposed image fingerprint scheme was good performance.2012 6th International Conference on Complex, Intelligent, and Software Intensive Systems, CISIS 2012;Palermo;4 July 2012through6 July 201

Image content detection method using correlation coefficient between pixel value histograms

An extraction method for searching for unauthorized copies of an image on the Internet is required in image search to make use of digital watermarks. In this paper, we propose an efficient two-stage image search method for extraction of illegal copies of a target image. The first stage is a pre-search, which searches for candidate of illegal images by some simple method. The next stage is the main search, which extracts embedded copyright information from the candidate and decides whether the image is an illegal copy of the target. In addition, we propose a simple image search method which uses the correlation coefficient between pixel value histograms of images as a pre-search method. The proposed pre-search method is useful because the proposed method is possible to combine with the current extraction technologies of embedded information. The performance of the proposed pre-search method is evaluated through computer simulations. © 2011 Springer-Verlag

A CG Generation Method of Wash Drawing

The opportunity of process the image increases, the research on generating the image like the painting became on important in recent years. Generally individual image blog shape contents open to the public chance is increase. In the painting, the drawing in ink and wash has the feature with a framing of the outline of the Iras key of G and an especially light color. Generally, it is a technique for coloring in the watercolor with a high transparency after it sketches with the pencil etc. and the brush. The outline of the image is extracted to reproduce this technique, and the stroke of the brush is reproduced. Coloring segments the area according to the inclination, and smoothes the inside.2009 International Conference on Complex, Intelligent and Software Intensive Systems (CISIS) : Fukuoka, Japan, 2009.03.16-2009.03.1

Endoscopic Resection of Zenker's Diverticulum

We report an endoscopically assisted total diverticulectomy for Zenker's diverticulum. Skin incisions were made at the anterior axillary line, the center of the sternum, and the neck as portals for endoscopical instruments. The skin was retracted with hooks which provided an excellent view of the working space. The diverticulum was fully exposed and resected by using a multifire endoscopic stapler. This approach is minimally invasive in comparison with the conventional open cervical approach

Non-adiabatic dynamics in 10Be with the microscopic alpha+alpha+N+N model

The alpha+6He low-energy reactions and the structural changes of 10Be in the microscopic alpha+alpha+N+N model are studied by the generalized two-center cluster model with the Kohn-Hulthen-Kato variation method. It is found that, in the inelastic scattering to the alpha+6He(2+) channel, characteristic enhancements are expected as the results of the parity-dependent non-adiabatic dynamics. In the positive parity state, the enhancement originates from the excited eigenstate generated by the radial excitation of the relative motion between two alpha-cores. On the other hand, the enhancement in the negative parity state is induced by the Landau-Zener level-crossing. These non-adiabatic processes are discussed in connection to the formation of the inversion doublet in the compound system of 10Be.Comment: 6 pages, 5 figure