• Korean Journal of Dental Materials
• /
• v.44 no.3
• /
• pp.197-206
• /
• 2017

The hardening effect by ice-quenching after oxidation of a Pd-Ag-Sn-Au metal-ceramic alloy during porcelain firing simulation was investigated by means of hardness test, field emission scanning electron microscopic observations, and X-ray diffraction analysis. The hardness decreased by ice-quenching after oxidation, which was induced by the homogenization of the ice-quenched specimen. The decreased hardness by ice-quenching after oxidation was recovered from the wash stage which was the first stage of the remaining firing process for bonding porcelain. After wash stage, the hardness of the ice-quenched specimens decreased during the subsequent porcelain firing process. But the final hardness of the ice-quenched specimens after oxidation was higher than that of the specimens cooled at stage 0 after oxidation. The increase in hardness of the specimens during the first firing process was caused by the lattice strains generated at the interface between the face-centered cubic Pd-Ag-rich matrix and the face-centered tetragonal Pd3(Sn, Ga, In) precipitate. The decrease in hardness of the specimens during the remaining firing process was caused by the microstructural coarsening.

• Journal of Digital Convergence
• /
• v.11 no.2
• /
• pp.263-269
• /
• 2013

This research paper is applying Writing Supporting System on the previous research study about writing tool data model on interactive storytelling about family Story. Family story writing supporting system enables users to create text, images, videos and digital contents based on experimental knowledge collected from the first and second generations. The paper about studies on writing tool system on family story, aims to create documentary based high quality contents about each family members and family history. At the same time, overcome generation gaps and the lack of creation infrastructures. Throughout this process, the author will contribute to the expansion of creation devices which can be applied in other researches and writing tools.

• Journal of Hospice and Palliative Care
• /
• v.17 no.3
• /
• pp.142-150
• /
• 2014

Purpose: This study was to identify the attitude of Korean HIV (Human Immunodeficiency Virus)-positive men toward death. Methods: A Q-methodology was performed with 20 HIV-positive male individuals. Participants were asked to select and answer questions among a set of 40 Q-statements using a 9-point scale. The collected data were analyzed using the PC QUANL program. Results: Participants' attitudes toward death were categorized into four types. Type I was characterized by respect for life, type II by reality orientation, type III by pain evasion and type IV religious beliefs. Conclusion: It is necessary to develop an assessment tool and an intervention program for HIV-positive individuals.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2013.05a
• /
• pp.620-622
• /
• 2013

Real-time Video communication technology using a Web browser today is on the rise. Video communication system The existing A method of providing an Video communication via a program for a specific server on the service provider, respectively. By using the server of the company that provides an Video communication solutions, were limited by using its own network that you can use to build a separate server for performing Video communication another, using specific software and user groups it was a mechanism for using the Video communication environment. In addition, must be installed separately and ActiveX, plug-in and, use of the service has become possible. Therefore, in this paper, utilizing the real-time Video communication Web-based technology without installing the plug-in, real-time through a Web browser or Active-X of another using a script HTML5 and the Web on the Internet Using HTTP in an environment in the Internet is possible, I've implemented a system capable of Video communication.

• Journal of the Korea Computer Graphics Society
• /
• v.26 no.3
• /
• pp.21-29
• /
• 2020

This study defines the pipeline for digital fashion contents production using CLO 3D, a 3D fashion design software that supports virtual clothing visualization as a cutting-edge simulation technology for fashion, and vuforia, a mobile platform augmented reality (AR) development kit for creating AR applications. The proposed production pipeline is organized in a method to produce a virtual clothing model through CLO 3D software through works of patterns, sewing lines, textures, etc., and AR contents based on computer vision techniques using the functions and properties of vuforia development kits in the Unity engine development environment. In addition, we present application method that can be practically utilized from the perspective of practical users, such as fashion designers and directors, by creating a new type of AR digital fashion contents directly as a flow of the defined production pipeline.

• Cross-Cultural Studies
• /
• v.40
• /
• pp.133-158
• /
• 2015

This study aims to analyse the conversation structure on Talking Culture("說漢語 淡文化") that is one of the conversation textbooks about Chinese culture and investigate Chinese textbooks published in Korea and Japan from a integration point of view among language, literature and culture for improving upon the problems on Talking Culture. For this purpose, this study, before analysing and investigating, considered the concept of language socialization on learning Chinese as a foreign language, and on the basis of it, analysed the conversation structure of Talking Culture. And then this study examined how we should organize the structures and contents when making conversations in Chinese textbook related with culture in compared with the Chinese textbooks published in Korea and Japan. In conclusion, this study argues that when composing a conversation textbook with culture, we not only need to pay attention not to have an inclination for conversation structure, but need to make use of the contents in Chinese literary and culture works for organizing conversations from the perspective of integration among language, literature and culture.

• Journal of the Korea Convergence Society
• /
• v.9 no.10
• /
• pp.303-313
• /
• 2018

In order to provide quality services across international airports, airline personnel must rapidly and effectively develop and share knowledge. Combining components of adaptive structuration theory (AST) and media synchronicity theory (MST), a research framework was developed to convey three distinct stages of knowledge sharing. We use the grounded theory research method for the qualitative data collected from audio transcripts of employees learning how to use and work with company issued smartphones with push-to-talk functionalities. Data was collected from 33 operations personnel. The results of the content analysis are recorded for the elements of each of the three concepts of our research framework. During the social interaction stage, the content of the audio conversations shifts mainly from conflict management to task management; for media synchronicity, from quality to quantity; for productive outcomes, from efficiency to commitment. New insights are uncovered from our analysis of data from the field as users advance from learning how to use the mobile devices, to using the devices for managing knowledge for their work in the airline industry.

• Journal of KIISE:Computer Systems and Theory
• /
• v.28 no.9
• /
• pp.415-423
• /
• 2001

Recently, there are many attempts to reproduce real world fine art pieces in digital forms. The digital representations are convenient to store and/or transmit. In contrast, mobiles, or moving sculptures, such as those designed by Alexander Calder cannot to reproduced realistically by usual reproduction techniques. Since mobiles are originally designed to generate motions in response to external forces applied to it, people could not fully enjoy them through photographs or static images. We present a virtual mobile system where use can easily control the mobile and can feel the impressions that the artist originally intended to provide. A real-world mobile is reconstructed in a three-dimensional physically-based model. and then virtual wind is generated to give motions to it. The motions of the mobile are generated by constraint dynamics and impulse dynamics techniques, which are modified to fully utilize the characteristics of the mobile, and finally give interactive displays on the PC platforms. The techniques presented can easily be extended to simulate other interactive dynamics systems.

• Journal of Korean Library and Information Science Society
• /
• v.38 no.2
• /
• pp.13-30
• /
• 2007

The purpose of this study was to explore the role orientation that librarians are expected to carry during their career-life. More specifically, this study examined the pattern of librarians subjectivism related to attitude, belief, and confidence. Q questions were made of 36 items, including personal value system and role attitude. P sample included 23 librarians. Data were collected for 8 days (from April 15, 2005 to April 22, 2005). Analyses showed the following results. First, librarians role orientations were classified into 3 types: user-centered orientation, organization-centered orientation, and expertise-centered orientation. (1) The first type librarians were interested in having good relationships with users, while emphasizing the importance of providing good services to the users. (2) The second type of librarians were concerned with social function of the library, while placing highlight on their roles as organizational members. Among them, achievement evaluation was regarded as an important indicator of personal success. They were interested in having stable organizational culture, as well as economic growth of libraries. This orientation was dominant among married members. (3) The third type of librarians focused on librarians role implementation and professional achievement. They showed interest not only in the improvement of librarians creativity and the growth of expertises, but also the expansion of retraining opportunities. This orientation was conspicuous among female librarians. Second, several commonalities and differences were consistently found among librarians. The first type was interested in user-centered orientation(user contact, need satisfaction, self dignity, etc.). The second type was interested in organization-centered orientation(creativity, expertise growth, retraining opportunity, professional achievement. self-respect, etc.).

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1977.06a
• /
• pp.5.2-5
• /
• 1977

Many persons, both children and adults, suffer from impaired hearing. The handicaps that arise from this are economic, educational and above all, social. These persons need help, both medical and educational. In order to plan facilities for the medical treat ment, the rehabilitation, and the special education required by those with impaired hearing, we must know how many persons with hearing problems there are and the severity of their handicaps. The first step in knowing these is to devide hearing impairent into categories of handicap. Historically, since Beasley (1940) proposed progressive stages of deafness in terms of social disability, there was no well organized classification. of hearing handicap except related material from Huzing (1959) and Silverman (1960). In 1965, Goodman advocated a guide hearing threshold levels and degres of relating hearing impairment. During recent one year, on the bases of Goodman classification of hearing impairment and the report from Illinois Comission on children (1968), we have studied about hearing handicaps and speech life for the 180 cases, who visited to our otolaryngology department with hearing impairment. Now, we report the results of study with the referred references.