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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Digital Contents Society
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Digital Contents Society
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Volume & Issues
Volume 11, Issue 4 - Dec 2010
Volume 11, Issue 3 - Sep 2010
Volume 11, Issue 2 - Jun 2010
Volume 11, Issue 1 - Mar 2010
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An Analysis and a 3D Prediction of vibration modes in a Laser Doppler
Baik, Ran ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 117~122
This is a study on the analysis of vibration mode of a laser doppler. We measure the vibration mode of a doppler and analyze each component, and want to estimate three dimensional properties from 2-dimensional data. The vibration mode relies on a range detector that uses a distance sensor. Since the outputs are determined by the measured distance, we want to study how 3-dimensional vibration mode is generated from 2-dimensional ones. The study will include the patterns of generating a 3-dimensional vibration mode as well as the relationship between the distance and the vibration mode.
A study on the Development of Ubiquitous Performance
Cho, Hyun-Il ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 123~127
Innovation in technology has changed the form and meaning of performance work and its appreciation in its long history. Applied to performance art, the concept of digital media and ubiquitous also created new implications in aesthetics and technology. As a matter of fact, new elements of ubiquitous performance- new relationship between creators and the audience and the extension of the notion of 'audience'- are not newly introduced. These elements have been tried throughout hundreds years of performance history and is far more developed thanks to digital communication. In this study, we will discuss how these elements have been developed from the earlier text-based ubiquitous performance to 3D virtual world and contributed to the construction of the virtual culture.
Comparison on How Much Multiple Teaching Assistants affect Students' Study Results and Self-Efficacy
Kim, Bog-Soon ; Kim, Byung-Soon ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 129~134
Today's elementary schools emphasize practice- and learner-based computer courses. In this research, we found solutions to the above issues by adapting a demonstration/practice teaching method led by multiple teaching assistants, expanding lessons tailored to each student's own level. We chose fourth graders from three classes at Elementary School as the subject for this research. Through this research, we have analyzed the students' study results, self-efficacy, response and interest in the computer courses by examining three groups of students: the first group led by a teacher's demonstration and practice, the second group by a teaching assistant's demonstration and practice, and the last by multiple teaching assistants' demonstration and practice. As a result, we were able to show that a computer course taught by multiple teaching assistants will help not only induce an interest and motive for a mutual learning environment among the students, but also bring positive effects on the study results and self-efficacy.
Electronic Medical Record Modification Prevention Protocol
Joo, Han-Kyu ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 135~144
Medical records are very important records and should not be modified after creation. The current medical records are liable to improper modification. With the development of information technology, electronic medical records (EMR) are used widely. For the EMR, cryptographic primitives may be used to develop techniques to prevent medical record modofication. In this research, a technique to prevent improper medical record prevention is proposed. It uses crytographic primitives such as linked hash, digital signature, and electronic notarization. A prototype system is also developed for performance analysis. The proposed method makes the medical record modification impossible with a small amount of additional cost.
Multimedia Contents System based on Repurposing and Transcoding
Lee, Hyun-Lee ; Kim, Hye-Suk ; Kim, Kyoung-Soo ; Ceong, Hee-Taek ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 145~152
The study of application using multimedia contents have been worked out a lot. But those trial can be hardly to be applied because each social study curriculum has a little difference which is a peculiar properties in social study. So we try to find the most efficient study method making multimedia contents system with computer graphic design and animation and sound and movie. This study introduce the method of image transcoding in real time based on repurposing structure to make better use of a multimedia contents system. We assume that developed multimedia contents system could be a big help to increase study efficiency through graphic, sound, movie as well as to encourage student's motive and interest. It is mostly possible to use for creative, self-controlled and social study material which is used to study the subject with conversational and repetitive way. So we hope this study will be a good guide line of developing various contents in multimedia contents.
A Study on the Relationship between Cognitive Style and Elaboration strategy with regards to Multimedia Learning for Children
Byun, Soo-Kyoung ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 153~160
The purpose of this study was to investigate the elaboration strategy associated with multimedia learning for children. Main subjects of this study, which were 157 eight-, 150 ten- and 152 twelve-year-old children(total: 459). As a result, the elaboration strategy could find the facts to be effective to twelve-year-old children. And the elaboration strategy at cognitive style was not significant. We would suggest that the age is a significant variable to apply the elaboration strategy in multimedia learning.
Non-Native Teachers' English Language Teaching Improvement through Multimedia Applications
Lee, Il-Suk ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 161~168
In the past, Korean English language learners focused on knowledge of grammatical structures. Thus Korean trained instructors, who focused on explaining the grammar structures, were seen as being preferable for teaching in EFL (English as a foreign language) classrooms. However, with the focus changed to speaking capability Koreans now desire 'fluent' English more than 'accuracy' seeing if possible (Mottos, 1997). Current study has been concerned about the issue of how non-native learners of English perceive the difference between native teachers (NTs) and non-native teachers (non-NTs) of English in the context of ELT classroom. The study explores the issues and problems the followed and how non-NTs can enhance teaching practice of speaking and listening lessons through multimedia application.
Design and Implementation of an Efficient Water Count Management System
Lee, Seak-Jae ; Hwang, Jeong-Hee ; Ha, Eun-Sil ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 169~175
The important society facility to maintain daily lives and the various activity is the water service. In this paper, we propose a design and implementation method of water count management system for the measurement, distribution and control of water quantity. The proposed system for systematic facility management and effective water service administration is a design methodology for foundation facility of water service to provide good quality water and to prevent a leak of water, estimating the water capacity.
Study of perception of the visual depth caused by the color correction
Han, Myung-Hee ; Kim, Chee-Yong ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 177~184
These days, as digital producing technique has been developed, 3D imaging technique is used in high-tech computer and T.V. Also study for 3D producing technique is actively in progress. Moreover, as James Cameron's movie, 'Avatar' released in 2009 was a box office hit, the issue about 3D image came to the fore again. At this point, I decided to study the effect of the visual depth caused by the color correction during the post-production stage. The purpose of this study is to offer information about processing effective images through data about the effect of the visual depth that applies the color correction during the post-production stage. Basically, I supposed that color and contract would have effects on depth of 3D image. As a result, I could find out the changes of visual depth, space perception and sense of depth throughout the experiment. Applying this result,, I produced the 15 minutes of 3D advertisement movie and I found out that the color correction during the post-production stage was very effective for 3D depth. The left image and the right image by beam splitter based rig and parallel rig were used for this study. Also I adjusted the strong contrast by the color correction during the post-production stage after correcting convergence and visual depth during editing. As a result, I could produce images which had strong sense of space and sense of depth.
Visualization research based on hero tale stories in a fantasy movie
Han, Myung-Hee ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 185~194
The digital contents industry already heads toward the OSMU(One Source Multi Use) method of media. In case the success of the original novel recreates to a movie, the success of a movie is again noticed with the original novel. For this reason, a novel and movie are open at the same time, In this paper, we analyze through the case study of three fantasy films having the narrative structure of the germane myth : The Lord of The Rings, Harry Potter, The Chronicles Of Narnia based on the analysis basis : Hero's Journey 12 steps by J. Campbell, The analysis of scenes of each film visualizing the narrative structure of a novel can be used as the basic materials in the process of visualizing the scale of the original and message of a writer, we consequently believe that these analysis will be able to be applied the appropriate visual techniques (the special effect, the scene tractions, and etc.)in visualization of films.
An Implementation of Service Framework for Public Culture Contents in the Convergence Environment of Spatial Information and Culture Contents
Hong, Dae-Ki ; Song, Byeong-Sun ; Lee, Nam-Young ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 195~201
Globalization, conversions, and OSMU (One Source Multi Use) in modern cultural industry is expanding fast, and global competition is soaring with a changing environment today. In fact, the development of one nation depends on its cultural creativity. Yet, there is an increasing need for a connection between space and culture since globalization homogenizes a nation's unique cultural identity and provides low level of utilization in digital cultural contents in terms of saving, conserving and maintaining data. In order to invigorate the cultural industry, there must be some information that provides public culture contents, which they can be freely searched, displayed, and re-produced. Ultimately, these public culture contents should be able to provide Culture Space. This text discusses how individuals produce the Culture Space, which provides digital information of time and space, from a relationship between culture and space. It also introduces the public Culture Contents service framework in order to provide culture information and combined Culture Contents.
The Analysis of Trends in Smart Phone Applications for Education and Suggestions for Improved Educational Use
Jeong, Su-Jeong ; Lim, Keol ; Ko, Yu-Jung ; Sim, Hyun-Ae ; Kim, Kyung-Yeon ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 203~216
This study analyzed educational applications in smartphones with some criteria seeking to apply online learning characteristics to smartphones. For the analysis, 85 educational applications were selected and they were classified by types of educational contents, interactions, and the combination of the educational contents and interactions. As a result, drill-and-practice and tool types of contents ranked high, and there found to be few simulation and problem solving types. In regard to interaction types, almost all of the applications had interactions only between contents and learners, which meant little active communications when using applications. Therefore, enhanced interactions and communications among learners using the social network service platform were required in order to use educational applications in a more effective way.
Evaluation of Usefulness of IDEAL(Iterative decomposition of water and fat with echo asymmetry and least squares estimation) Technique in 3.0T Breast MRI
Cho, Jae-Hwan ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 217~224
The purpose of this study was to examine the usefulness of IDEAL technique in breast MRI by performing a quantitative comparative analysis in patients diagnosed with DCIS. On a 3.0T MR scanner, fat-suppressed T2-weighted images and T1-weighted images before and after contrast enhancement were obtained from 20 patients histologically diagnosed with ductal carcinoma in situ (DCIS). The findings from the quantitative image analysis are the following: 1) On T2-weighted images, SNR were not significantly different in the lesion area itself between the CHESS and IDEAL groups, while the IDEAL group showed higher SNR at the ductal area and fat area than the CHESS group. In addition, the CNR were higher for the IDEAL group in those regions. 2) On T1-weighted images before enhancement, SNR were not significantly different in the lesion area itself between the CHESS and IDEAL groups, while the IDEAL group showed higher SNR at the ductal area and fat area than the CHESS group. In addition, the CNR were higher for the IDEAL group in those regions. 3) On T1-weighted images after enhancement, SNR were not significantly different in the lesion area itself between the CHESS and IDEAL groups, while the IDEAL group showed higher SNR at the ductal area and fat area than the CHESS group.
A Study on the Web-Based Instruction Using Flash
Kim, Min-Sung ; Park, Sung-Hoon ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 225~234
Web-based instruction is being developed as a new study model getting out of the traditional standardized education method. It is a new education tool which promotes learner-centered and cooperative study. Flash, as one of the most powerful web authoring tool can maximize the effectiveness of learning using computer graphic, animation, sounds and video. In this paper, we will look at developing and distributing education materials using flash and the efficient web-based instructions.
Application and Technology of Voice Synthesis Engine for Music Production
Park, Byung-Kyu ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 235~242
Differently from instruments which synthesized sounds and tones in the past, voice synthesis engine for music production has reached to the level of creating music as if actual artists were singing. It uses the samples of human voices naturally connected to the different levels of phoneme within the frequency range. Voice synthesis engine is not simply limited to the music production but it is changing cultural paradigm through the second creations of new music type including character music concerts, media productions, albums, and mobile services. Currently, voice synthesis engine technology makes it possible that users input pitch, lyrics, and musical expression parameters through the score editor and they mix and connect voice samples brought from the database to sing. New music types derived from such a development of computer music has sparked a big impact culturally. Accordingly, this paper attempts to examine the specific case studies and the synthesis technologies for users to understand the voice synthesis engine more easily, and it will contribute to their variety of music production.
Study on collision processing among objects by 3D information of real objects extracted from a stereo type method in AR
Jo, In-Kyeong ; Park, Hwa-Jin ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 243~251
In this paper, 2 devices through the input image are projected onto the output video device to extract 3D information of real objects and they are located in virtual space. All 3D objects for each inter-object interaction information and location information makes the validation process by recognizing conflict. The proposed extract 3D information of real objects and collision handling inter-object interaction in the most basic issues in augmented reality, because more than anything is a matter to be prescriptive. Therefore, the proposed system to solve this problem exists in virtual space, all objects of the user by validating the conflict between realism and immersion to show that aims to increase.
Representation of Drinking in Cultural Contents: Analysis of Television Drama Texts
Yang, Jung-Hye ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 253~264
This study aimed to 1) analyze television drama text to examines how Korean television dramas represent alcohol drinking; 2) interview the actual drama audience to examine how they perceive drinking and whether or not their perception is influenced by the drama text. The author analyzed 60 drama episodes from 12 prime time shows that reached over 20% rating from 2008 to 2010. The result shows that drinking in dramas are portrayed as a solution to various kinds of personal and business problems, medium of romance, a tool for interpersonal communication that facilitates understanding and positive relationship. Female drinkers are prominent but their drinking is taking place under the patronage of male characters, which lead to the maintenance of patriarchal social relations. Interview findings show that the audience have strong motivation to imitate the glamourous lifestyles of leading characters in dramas. The findings strongly suggest observational learning was taking place, especially in the area where the viewers have no direct experience.
The Analysis of e-Learning Gap among Regions in the Context of Adult Learning
Cho, Jae-Jeong ; Lee, Sook-Young ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 265~276
The purpose of this study was to investigate the Korean Local Government's recognition on the educational gap among regions in the filed of adult learning including vocational education and life long-learning. The study also tried to figure out the local government's recognition and infrastructure of e-Learning which is suggested as one of the solutions on the regional gap of educational opportunities and quality. This study took 12 HRD(Human Resources Development) centers funded and operated by the Korean Local Governments except Seoul and Kyong-Gi classified by the metropolitan areas in Korea. As a result, firstly it was found that the local governments had perception on the difference and gap of educational opportunities and quality among regions in the area of adult education. Especially, the perception was relatively more serious on quality than quantity. Secondly, the result showed the large gap among regions on the area of opening educational and training programs, the quality of teachers and tutors, the effectiveness and outcomes of educational programs. Thirdly, they perceived more serious educational gap on face-to-face classes rather than e-Learning in the context of educational methodology. It also revealed that the local governments had relatively better foundations on physical systems than other infrastructures and resources such as human-ware, culture-ware and soft-ware(contents, programs etc.). It was recommended to consider these findings in developing and implementing future educational policies to solve the problem of regional gap on education.
Development of communication module for the wireless transmission of oxygen saturation(SpO2) and display software
Han, Young-Oh ;
Journal of Digital Contents Society, volume 11, issue 2, 2010, Pages 277~282
In this paper, the wireless transmission module is developed to transmit oxygen saturation(SpO2) signal, acquired from bio-signal measuring module, to PC. This wireless transmission module is designed with closed type protocol instead of open type protocol such as a zigbee or a bluetooth, considering of the security of personal medical informations. The display software is also developed to display transmitted SpO2 signals by various type data and graph without information loss for a emergency transfer.