Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Journal of the Korea Contents Association
Journal Basic Information
Journal DOI :
The Korea Contents Association
Editor in Chief :
Volume & Issues
Volume 8, Issue 12 - Dec 2008
Volume 8, Issue 11 - Nov 2008
Volume 8, Issue 10 - Oct 2008
Volume 8, Issue 9 - Sep 2008
Volume 8, Issue 8 - Aug 2008
Volume 8, Issue 7 - Jul 2008
Volume 8, Issue 6 - Jun 2008
Volume 8, Issue 5 - May 2008
Volume 8, Issue 4 - Apr 2008
Volume 8, Issue 3 - Mar 2008
Volume 8, Issue 2 - Feb 2008
Volume 8, Issue 1 - Jan 2008
Selecting the target year
Overlay Multicasting with Local Swap Option in a Personal Broadcasting System
Kang, Mi-Young ; Lee, Hyung-Ok ; Nam, Ji-Seung ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 1~8
DOI : 10.5392/JKCA.2008.8.8.001
Overlay Multicast is an effective method for optimal utilization of system resources and network bandwidth without a need for hardware customization. It is an effective method of providing Personal Internet Broadcasting Service for better Quality of Service to many users. In this paper, we propose a multicast tree that uses Local Swap method. In order to prove the effectiveness of the new technique suggested here, using the proposed method and personal internet broadcasting service, information is abstracted, compared and analyzed under various overlay multicast algorithm conditions. We have proved that the suggested local swap technique is more effective by comparing it with other existing techniques in various methods such as using various overlay based multicast algorithm simulation.
Semantic User Profiles Manager based on OSGi
Song, Chang-Woo ; Kim, Jong-Hun ; Chung, Kyung-Yong ; Rim, Kee-Wook ; Lee, Jung-Hyun ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 9~18
DOI : 10.5392/JKCA.2008.8.8.009
Research is being made for users` convenient access to services such as personalized data and contents services. The use of information and the fusion of services in various devices and terminals suggest the necessity to know what personalization mechanism is used to provide high quality contents at a time and place desired by users. Existing mechanisms are not easy to be handled by other service providers because each service provider has different preference and personal information, and are very inconvenient because service users have to set up and manage by themselves. Thus, the present paper proposes a Semantic User Profiles Manager based on OSGi, middleware for the provision and extension of semantic services, in order to manage users` profiles dynamically regardless of service provider. In addition, this paper defines a personalized semantic profile that enables user profiling, ontological domain modeling and semantic reasoning. In order to test the validity of this paper, we implemented semantic profiles into a bundle running based on OSGi. When users enter the range of the service area and use various devices, the semantic service matches in correspondence with semantic user profiles. The proposed system can easily extend the matching of services to user profiles and matching between user profiles or between services.
Strategy for Strengthening Late Mover`s Competitiveness in the IT Equipment Market
Yang, Je-Min ; Kim, Jung-Eun ; Lee, Seok-Joong ; Park, Jae-Chon ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 19~27
DOI : 10.5392/JKCA.2008.8.8.019
The advance of IT brings various IT equipment which functions as creation, application, and distribution of digital contents, and its demand is increased in the market. As the world IT equipment market has grew steadily, some companies think of it as a good opportunity. But there is a entry barrier like IT Capabilities to the late movers. So some participate in the market, forming the technology alliance with a advanced company. Ironically, the market system set companies` partnership into rivalry. In this context, our study focused on strengthening late mover`s competitiveness under the technology alliance. And we conducted the case study concerning the technology alliance, and showed a strategical implications. As a result, we found some challenges for late mover; price policy making by scientific demanding forecasting, preparatory research and management for brand identity and efficient contact points for customer management. We hope that results of the study will influence the development of digital contents industry.
Development of MAC Function for the Spectrum Sensing based on Cognitive Radio
Kim, Joo-Seok ; Lee, Hyun-So ; Hwang, Sung-Ho ; Min, Jun-Ki ; Kim, Ki-Hong ; Kim, Kyung-Seok ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 28~36
DOI : 10.5392/JKCA.2008.8.8.028
The worth of frequency resources is growing up because of development of wireless communication. However, frequency resources is short, because demand is much more than supply. So it needs Cognitive Radio(CR), which manages frequency resources efficiently. In this paper, we apply the efficient Spectrum Sensing method based on CR in an embedded board. We examine various Spectrum Sensing methods and apply these methods to an embedded platform on CR environment and verify the performance through the MAC message.
Design and Implementation of Fault-tolerant Communication Middleware for a High-reliable Launch Control System
Song, Dae-Ki ; Jang, Bu-Cheol ; Lee, Cheol-Hoon ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 37~46
DOI : 10.5392/JKCA.2008.8.8.037
Launch control system controls the sequence for launching missile in weapon systems. This system have to generate the engagement plan, input information and launch the missile in timeliness requirement. Such a system may fail to operate correctly either due to errors in hardware and software or due to violation of timing constraints. We presented fault-tolerant ethernet for embedded real-time system like launch control system. This approach is designed to handle network faults using dual commercial-off-the-shelf(COTS) network devices. To support fault-tolerant ethernet each node is composed dual channel ethernet and designed the communication middleware for network fault detect and recovery. Especially for time-critical system, the middleware is being developed to achieve that no point of network failure shall take down or cause loss of communication to network nodes.
Implementation and Performance Analysis of High-availability System for Mission Computer
Jeong, Jae-Yeop ; Park, Seong-Jong ; Lim, Jae-Seok ; Lee, Cheol-Hoon ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 47~56
DOI : 10.5392/JKCA.2008.8.8.047
MC(Mission Computer) performs important function in avionics system which tactic data processing, image processing and managing navigation system etc. In general, the fault of SPOF(Single Point Of Failure) in unity system can lead to failure of whole system. It can cause a failure of a mission and also can threaten to the life of the pilot. So, in this paper, we design the HA(Hight-availability) system so that dealing with the failure. And we use HA software like Heartbeat, Fake, DRBD and Bonding to manage HA system. Also we analyze the performance of HA system using the FDT(Fault Detection Time) for fast fault detection and MTTR(Mean Time To Repair) for mission continuity.
TFRC Flow Control Mechanism based on RTP/RTCP for Real-time Traffic Transmission
Choi, Hyun-Ah ; Song, Bok-Sob ; Kim, Jeong-Ho ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 57~64
DOI : 10.5392/JKCA.2008.8.8.057
In this paper, to resolve the problem caused by a network state information inaccuracy the slow delay time that conclusion of network state of one way delay time which accuracy delay time information, according to network state changes on the based TFRC flow control, and suggest that flow control mechanism to adjust transfer rate fit of real time multimedia data. In simulation, to measure of netowork state information that on the average about 12% difference of compared RTT and
. When used RTT, used fair bandwidth TFRC much better than TCP about 32%, when used OWD, difference about 3% used fair bandwidth. Thus, conclusion of accuracy network state that used fair bandwidth according to network state changes on the based TFRC, users can support service of high quality that flow control mechanism to adjust transfer rate fit of real time data.
Interactive Storytelling Example Analysis of Promotion Site
Ahn, Seong-Hye ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 65~73
DOI : 10.5392/JKCA.2008.8.8.065
Web-based Promotion of companies have several advantages: They can publicize the brand image in various ways; they enable consumers to learn the information of products in the round with interests; they can stretch out their marketing targets to the whole world. In order to make an effective delivery of their information in such promotion websites, interaction with their consumers is an important factor, for which understanding Interactive Storytelling is essential. The purpose of this thesis is to study Interactive Storytelling which enables us to have effective interaction with consumers in making promotion websites of companies. For this, this thesis analyzes examples of Interact Storytelling focused on it have story promotion websites on the basis of the five steps for internet marketing promotions: attraction of visitors, attraction of interests and participations, acquisition of the information of customers, grasp of the needs of customers, and an offer of values classified by customers.
Proposal on an Idle Service for Efficiently Managemental Short Message Service
Jeon, Hye-Kyoung ; Chung, Soo-Jin ; Han, Seung-Jin ; Lee, Jung-Hyun ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 74~80
DOI : 10.5392/JKCA.2008.8.8.074
Various mobile contents have been developed with the spread of cellular phones. Above all things, nowadays, an idle application services are developed through competition in mobile phone manufacturers and mobile communication companies. In this paper, we propose that the idle application with text message service is easy to receive and edit. It is complement to function of SMS in use and can be effective information managing method, for example, it arrays messages and uses diary feature to set permissions when it send and receive standardized text message. We expect that proposed service will be adopted without additional cost in wireless units.
On Analysis of Silver Generation Leasure Life Activities for Contents Development
Cho, Seok-Bong ; Byun, Seung-Hwan ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 81~89
DOI : 10.5392/JKCA.2008.8.8.081
Because of the development of modern medical science and increased longevity of elderly due to better health care: we are facing a new growing generation of "silver" senior citizens. In near future we will see a slow increase in senior spare time activities in our society. In this study the types of the spare time activities are researched and analyzed. Over the age of 60 most seniors spend ample time watching television and sleeping. Amazingly, in the second age group, seniors aged forty to fifty, when shown to the wonders of internet and cyber technology tend to accept and desire it. It is expected be seen this trend will increase. Secondly, in the case that seniors in their forties and fifties are entering into the silver generation, we can expect more promising multimedia content developed for the elderly.
Personality Structures of Heroines in Miyazaki Hayao Animations
Yang, Se-Hyeok ; Kim, Il-Tae ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 90~102
DOI : 10.5392/JKCA.2008.8.8.090
One of the most distinctive characteristic of the animations of Miyazaki Hayao is appearance of heroines with firm beliefs as well as compassion and generosity.. This study aimed to conduct research into the common points and differences in personality structures targeting <Nausicca of the Valley of WInd>, <Laputa: the Castle in the Sky>, <Mononoke Hime>, and <The Spiriting Away of Sen and Chihiro>, in which heroines appear out of long animation films created and directed by Hayao, In order to analyze the personality types, the study applied the classification criteria of MBTI and enneargram, and it analyzed the personality structures in comprehensive consideration of organic relationships and external characteristics according to the roles of the characters. This study analyzes that their personality type could be created very indivisually by changing their behavior motives, though Miyazaki`s heroines are both Savior and idealist. Also, the study defined the characteristics of the personality structures of heroines created by Miyazaki Hayao and prepared data about them based on the results.
Effects of Cinema Therapy on Decreasing a sense of Uneasiness and Improving Interpersonal Relationship;Focusing on Schizophrenia Patients
Yu, In-Chul ; Bae, Jin-Ah ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 103~110
DOI : 10.5392/JKCA.2008.8.8.103
In order to verify the effects of cinema therapy on decreasing a sense of uneasiness and improving interpersonal relationship, this study carried out 7 sessions of cinema therapy and consultation with 10 schizophrenia patients. According to the qualitative analysis, the participants were found to be emotionally relaxed through improving their sense of alienation and nervous behaviors as well as revealed the improved interpersonal relationship with communicating lively and expressing actively, Meanwhile, according to the quantitative analysis, 7 of 10 displayed more stable figures than the average of normal people in uneasiness quotient and 6 of 10 showed higher numbers in interpersonal relationship measure. Based on these results, it can be concluded that the treatment applying the cinema therapy has significant effects on decreasing a sense of uneasiness and improving interpersonal relationship.
The study of Right Portrait Exposure Setting in Digital Cameras;Focusing on the Cognitive Preference in Representation of Skin Tones
Noh, Yeon-Sook ; Har, Dong-Hwan ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 111~118
DOI : 10.5392/JKCA.2008.8.8.111
Nowadays, people get images from various media like TV, magazines, newspaper, internet. Such images directly influence people`s thoughts and lives, either consciously or unconsciously. In the past, reproduction devices have been mainly used in reproducing an original scene accurately. Lately, the cognitive preference became a key value in the scene reproduction, and it was affected by the surrounding media. Recently, the most commonly used device in reproducing an original scene is the camera. The core of an image is the light, in other words, the exposure. Most digital cameras are set to adjust exposure automatically in order to reproduce a scene physically as identical as possible. However, physically right exposure does not always give images that people prefers. Numbers of tests were done to find the exposure value that makes an image cognitively more preferred. Skin tones which are highly sensitive to color and changes in density has been used in the tests. A male and a female model have been used to classify changes in cognitive preference due to gender differences.
Study on the Creation and Usage of Cultural Contents for `Geotaji Folk Tale`
Lee, Kyu-Hoon ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 119~127
DOI : 10.5392/JKCA.2008.8.8.119
The object of this study is to find ways of a creation and an usage of cultural contents, based on the survey of the culture archetype facts, the culture elements and the narrative structure of `Geotagi folk tale`. This story takes its place as our cultural archetype, because of its perfect narrative structure and the myth-like features in the story line. Additionally, various cultural elements implied in the text have the world wide universality as well as the unique traditional characters of Korea. Thus, for above reason, `Geotagi folk tale` can be helpful in creating the new cultural contents. In creating and using the cultural contents of `Geotagi folk tale`, the first way is to build up the Digital contents including the data base of the original text and others, and the creation of graphics. The second way is to create the story bank utilizing hypertext. The third way is to make flash animations or games concerning the folk tale. and the fourth way is to to develop the symbols of the folk tale as animation characters.
Changes of Technologies of the Self by Personal Blog
Kim, Jong-Deok ; Cho, Na-Hyun ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 128~146
DOI : 10.5392/JKCA.2008.8.8.128
Cyworld has created a new social phenomenon that relationship between people and communities could be built by committing to digital writing. It has altered the way of people`s writing attitudes from self-confessed to self-describing and self-broadcasting ways in which one regards oneself as the center of the cyber world. The purpose of this paper is to identify the shift in one`s writing attitudes and how he/she develops technologies of the self in the Cyworld space. Quantitative and qualitative methods support the result; The analysis of 100 Cyworld users` mini-homepages show how the visual images in Cyworld affects their way of digital writing and the analysis of the change of writing habit due to sharing data how virtual `family` that has been created by Cyworld. I categorize the characteristics of digital writing into three; 1)Visualization of technologies of the self 2)Networked technologies of the self 3)Sharing secretes. The aim of writing in Cyworld is not to keep the secrete but to share and, eventually, texts are circulated in the networked society where one is participated(Cyworld family). Therefore, the usage of images plays a significant role in Cyworld communities because the opened secretes are usually prepared to be presented on the basis of trustworthy toward other members.
Management Efficiency of Introduction Company of ERP System using DEA
Kim, Jong-Ki ; Kang, Da-Yeon ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 147~157
DOI : 10.5392/JKCA.2008.8.8.147
ERP is the general trend of industrial information system and many companies are introducing strategically to strengthen the competitive power. This paper analyzes the efficiency of introducing companies of ERP system using DEA model. We also suggest the introducing of ERP system which can be benchmarked based on analyzed information. We evaluate the CCR, BCC efficiency and RTS of 38 introducing companies of ERP system. The result shows that three enterprises whose values of CCR efficiency are 1, and seven enterprises whose values of BCC efficiency are 1. RTS indicates IRS of 22 companies. DRS of 2 companies and CRS of 4 companies.
"Anti-Discrimination against and Remedies for Persons with Disabilities Act" and the Human Rights of Persons with Disabilities
Lee, Cheol-Ho ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 158~175
DOI : 10.5392/JKCA.2008.8.8.158
In recent years it seems to be accepted as absolutely right by almost all the people in the world that person without disabilities and person with disabilities are equal and should be treated so regardless of their race, national origin, sex, religion, disability, etc. This article deals with (1) "Anti-Discrimination against and Remedies for Persons With Disabilities Act" and (2) Human Rights of Persons With Disabilities. The purpose of "Anti-Discrimination against and Remedies for Persons With Disabilities Act" is to realize the human dignity and worth of persons with disabilities by prohibiting disability-based discrimination in all areas of society, and effectively safeguarding the rights of individuals discriminated based on disability, thus enabling them to fully participate in society and to secure equal rights.
Gynecologic Patients` Recognition of Radiation Exposure in Gyeongbuk Area
Park, Jeong-Kyu ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 176~187
DOI : 10.5392/JKCA.2008.8.8.176
As the radiological medical instruments have been competitively developed in recent years, its utilization for the patient treatment has been expanded. The medical examination using the radiation has been gradually increased, so that it is recognized as a significant factor of increasing the radiation exposure. In this study, the recognition about the radiation exposure was analyzed for 555 gynecologic patients in 8 secondary and tertiary medical centers in Gyeongbuk from November 17 to April 19, 2007. The results are followed. There was a significant difference on the recognition for the radiation by age and education (p<0.05), There was the significant difference in the recognition about the radiological instruments by age and occupation (p<0.05), and there was the significant difference in the information identification & analysis by age and occupation (p<0.05). As the result of analyzing a correlation of the radiation`s harmfulness, recognition, psychological state and exposure prevention, there was the correlation of 0.572 between the harmfulness and recognition, the correlation of 0.740 between the harmfulness and the psychological state, and the correlation of 0.477 between the harmfulness and the exposure prevention. It was statistically very significant (p<0.01). But, there was no significance with the radiological instrument and information identification (p>0.05). As the result of the study, it could be known that the mental threat factor was more included than the physical threat from the position of gynecologic patients who were sensitive to the radiation. Accordingly, radiological technologist who manages the radiation needs to let the patient or its guardians recognize the degree of physical harmfulness exactly.
Effective Anlysis of Regional Industry Development Project;Focus on Chungbuk Province
Bae, Jeong-Hwan ; Lee, Suk-Pyo ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 188~195
DOI : 10.5392/JKCA.2008.8.8.188
This research analysis Regional industry development project of central government. Fortunately, South Korea government changed from efficiency-centered economic policy to balanced territorial economic development. Therefore, the purpose of this research is firstly to present how to development of regional industry, and secondly to analysis of effectiveness from regional industry development project.
Relationship of Participation in Jazz Dance to Body Image and Mental Healt
Choi, Sung-Ae ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 196~205
DOI : 10.5392/JKCA.2008.8.8.196
The purpose of this study was to examine the relationship of participation in jazz dance to body image and mental health in an attempt to make a contribution to the spread of jazz dance. The subjects in this study were 183 people who were selected by purposive sampling from a population of Seoul and Gyeonggi province residents who were at the Western age of 18 and up. The selected people took general education courses at colleges, attended cultural centers or fitness clubs, or learned dance for all. One instrument used in this study to assess their body image was Jourard and Secord(1954)`s Body Cathexis Scale, which was modified into six factors and 39 items. The other was Kim Gwang-il, et. al.(1978)`s 46-item inventory, which translated Rickles and Rock(l976)`s SCL-90 with 90 items to suit Korean circumstances. That inventory was modified into 31 items and four factors. For data handling, factor analysis, reliability analysis, regression analysis and path analysis were utilized. The findings of the study were as follows: 1. The extent of jazz dance participation had an impact on their body image. Those who performed jazz dance more frequency had a better image about their health and the lower part of the body. 2. The level of jazz dance participation exerted an influence on their mental health. A longer participation term led to more interpersonal sensitivity, and a higher participation frequency was followed by more somatization. 3. Concerning the causal relationship of participation in jazz dance to body image and mental health, the participation frequency affected health, the image of the lower part of the body and somatization in the firsthand manner, and the image of the lower part of the body had a firsthand impact on interpersonal sensitivity, hostility, anxiety and depression. Accordingly, the image of the lower part of the body played a crucial role as a parameter in the relationship between the jazz dance participation frequency and mental health.
Strategy Development for Cultural Tourism Contents account to Ginseng
Lee, Yk-Soo ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 206~212
DOI : 10.5392/JKCA.2008.8.8.206
In spite of the element that tourism contents are importance for tourism activation attract attention that I took the culture sightseeing contents development strategy that utilized Ginseng. A basic course of contents development is the element which is well-being to be able to let you increase health and high value-added article development. A development strategy must be accompanied with a story in representative well-being and must develop the contents that can be full of character of multipurpose not a story for an article and in consideration of a last article form and develop feasible contents. Lastly, direct profit and participation must be guaranteed by local inhabitants.
Development of Archery Training Management System for Archer`s Performance
Jang, Young-Sool ; Hong, Kil-Dong ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 213~222
DOI : 10.5392/JKCA.2008.8.8.213
The goal of this research was to search for an optimum training program that increases archery performance skills in order to develop a performance training and support. For this research, by examining the existing sports statistics program, information management system, and other related documents, we were able to derive an athlete management realm as well as find archer factors. Also through a council we categorized the factors that constituted the training general management. The archery training general management system consists of six realms. First is the log-in and main screen realm. Second is the athlete information category. Third, the point of impact information category. Fourth, the shift-in-frequency analysis realm. Fifth, in the detailed analysis realm. Thus, the developed archery training general management system allows for a more generalized and scientific athlete management and support system. and it has turned out to be an adequate system for archer`s performance.
Relations between Perceived Social Exchange and Organizational Citizenship Behavior of Employees in Service Industry
Kim, Se-Ri ; Kwon, Mun-Ho ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 223~234
DOI : 10.5392/JKCA.2008.8.8.223
This study aims to understand the relation between the perceived social exchange of employees in service industry, which is focused on food service industry, and the organizational citizenship behavior, and to consider the efficiency of human resources management in service industry. To achieve the purpose of this study, a documentary study and an empirical study based on a structural equation model analysis were carried out. In this study, the social exchange consist of perceived leader support, perceived coworker support, and perceived organization support. Also the organizational citizenship behavior consist of organizational citizenship behavior for individual and organizational citizenship behavior for organization. And then, the relation between the variables was found out. Finally, based upon the results of analysis, this study was suggested for human resources management in service industry.
Learning Systems of Shin, Han-Seung`s Taekkyeon
Park, Yeong-Kil ; An, Jeong-Deok ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 235~243
DOI : 10.5392/JKCA.2008.8.8.235
This research show how Shin Han-Seong make up Taekkyeon to register to intangible cultural assets, and found next conclusion and meaning. First, skill organization of Song Duk-Ki Taekkeon that is only one modem Taekkeon`s initiator have been transmitted for a piece of skills of playing figure which don`t have regular system. But Taekkyeon which have regular system have been developed by Shin Han-Seong, finally Taekkyeon is approved to intangible cultural assets. Second, Shin Han-Seong modernized Taekkyeon by borrowing training system of Judo, Fencing, Hapgido, Taekwondo, Karate. But people criticize that Song Duk-Ki Taekkeon is not initiate with original thing. Third, Shin Han-Seong made the grade classification and practical technique screening, Bon-Dae Buigi Twelve part like Pomse of Taekwondo (there is no for traditional Taekkyeon). And he contributed to popularization and modernized learning system by pursuiting sportization. Through this research geared up Taekkyeon`s original shape and generational outline about skill transition or composition. And it gave important data for understand about Taekkyeon controversy which scattered.
Picture Analysis of Motor Control`s Property about the Motion of Stop-jirugi and Push-jirugi
Ahn, Jeong-Deok ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 244~252
DOI : 10.5392/JKCA.2008.8.8.244
This research differentiate the technique of Jungkwon-jirugi, one of the basic movements of Taekwondo, into two movements stop-jirugi and push-jirugi and gives analysis of the impulse, acceleration and velocity in the point of motor control. For this, we tried graphic analysis using an acceleration sensor and high speed camera which was made from USA in 2005 and took pictures at 250 frames per second. We reached the following conclusions. First, the acceleration wave of push-jirugi was a period longer than stop-jirugi, meaning that the push-jirugi motion asserts force for a longer time. Second, the acceleration and velocity graph shows that the highest velocity occurs on the point when the acceleration begins to decrease right after reaching its maximum. Third, according to the image analysis using the high speed camera, we could find out that the shoulder is pushed a little even in the stop-jirugi motion.
Walking Number Detection Algorithm using a 3-Axial Accelerometer Sensor and Activity Monitoring
Yoo, Hyang-Mi ; Suh, Jae-Won ; Cha, Eun-Jong ; Bae, Hyeon-Deok ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 253~260
DOI : 10.5392/JKCA.2008.8.8.253
The research for a 3-axial accelerometer sensor has increased dramatically in the fields of cellular phone, PDA, etc. In this paper, we develop a human walking detection algorithm using 3-axial accelerometer sensor and a user interface system to show the activity expenditure in real-time. To measure a walking number more correctly in a variety of walking activities including walking, walking in place, running, slow walking, we propose a new walking number detection algorithm using adaptive threshold value. In addition, we calculate the activity expenditure base on counted walking number and display calculated activity expenditure on UI in real-time. From the experimental results, we could obtain that the detection rate of proposal algorithm is higher than that of existing algorithm using a fixed threshold value about
. Especially, it could be found out high detection rate in walking in place.
Corporate Environment, Six Sigma Program, and Work Commitment;Focused on Hotel Cuisine Department
Kim, Hyeon-Muk ; Yoo, Young-Jin ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 261~273
DOI : 10.5392/JKCA.2008.8.8.261
One recurrent theme within the literature on 6 sigma was the study of its effect on organizational performance. Nonetheless, most research were focused on analyzing the relationships between the implementation of different elements and several types of performance. This research incorporated the effect of organizational environment as a variable for explaining the impact of 6 sigma on business results. The model was tested using regression analyses, employing a survey of employees of hotels` cuisine departments involved in 6 sigma. The causal analysis results showed that dynamism, munificence and complexity influenced the degree of implementation of the main 6 sigma principles. Similarly, the dimensions of 6 sigma had an impact on employees` work commitment. The model could be used by hotels to assess their level of 6 sigma success depending on specific environmental characteristics.
Analysis of Representation Methods for Semantic Constraints to Enhance the Quality of XBRL Services
Kim, Hyoung-Do ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 274~284
DOI : 10.5392/JKCA.2008.8.8.274
XBRL is an XML-based language, actively used for diverse business reporting applications including financial reporting. It can be flexibly applied to each application by defining concepts and their relationships existing within the application. In these business reporting processes, it is very important for senders and receivers to validate the consistency and completeness of reporting contents in the syntatic and semantic levels. The basic method is to directly represent and validate the semantic constraints using application program codes. However, the method makes it difficult to represent, change, share semantic constraints. While XML constraint languages for XML documents such as XSLT and Schemantron support explicit representation and sharing of semantic constraints, they are limited in the efficiency and effectiveness of representing XBRL semantic constraints. This paper reviews XBRL formula, actively being discussed recently for standardization, and discusses the representation capability and limitations through a case analysis, which applies XBRL formula to business documents in the area of financial reporting.
Information on Movement of the Phosphorus(P) Fertilizers in the Turfgrass Soils of Golf Course
Chung, Keun-Yook ; Baek, Ki-Tae ; Ko, Seong-Hwan ; Noh, Jae-Goan ; Lee, Kyung-Ho ; Woo, Sun-Hee ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 285~292
DOI : 10.5392/JKCA.2008.8.8.285
This study was initiated to evaluate the Phosphorus(P) leaching potential in the putting green soils and P uptake by the turfgrass in the golf course using the P fertilizers. The turfgrass, Floradwarf bermudagrass(Cynodon dactylon L. PERS,) was planted and grown in the mixture of sand and peat moss in this lysimeter study. Five representative P fertilizers, such as, ammonium polyphosphate (APP), monopotassium phosphate (MKP), MAP(monoammonium phosphate), 0-20-20(liquid), and concentrated superphosphate(CSP, solid) were used in this study. Based on the total P quantity of leachate collected during the whole 12 weeks, MKP and APP are the first group of P fertilizers contributing to the leaching of P, then MAP and 0-20-20 are the second group of P fertilizers causing the P leaching. Finally, CSP is the third group of P fertilizer resulting in the P leaching. However, most of P applied and collected in the lysimeter were leached during the first period of two and four weeks, compared to that of P leached during the second period of six, eight, ten, and twelve weeks. Applications of MAP, APP and CSP, MKP and 0-20-20 in order produced the largest amount of total dry matter. However, APP, MKP and MAP, CSP and 0-20-20 in order showed the largest amount of P uptake. Therefore, based on the data of P leaching, dry matter production, and plant P uptake, it appears that CSP, 0-20-20, and MAP are the environmentally sound fertilizers recommended in the turfgrass putting green soil of golf course.
Ideas of Teaching-learning Experiences Selection for Multicultural Education
Kwon, Choong-Hoon ; Kim, Hun-Hee ;
The Journal of the Korea Contents Association, volume 8, issue 8, 2008, Pages 293~302
DOI : 10.5392/JKCA.2008.8.8.293
Multiculuralism becomes the presentive term of Korea. And school is interested in multicutural education very much. The reason for this is connected to the fact of increasing intermarriages, immigrant laborers, and their children. So, the academic world is producing various research papers and public institution is proposing and practicing several policies. Particularly multicultural education is recognized as the very important intervening strategy on multicutral society and studied. The purpose of this paper is to suggest the ideas of teaching-learning experience selection for multicutural education in Korea. So the study contents of this paper are as follows ; First, it is to analyze the concepts of multicultural education and its` research trends. Second, it is to review the prior models of theorizing multicultural education and the models of curriculum development and teaching design. Finally, it is to inquiry the model of teaching-learning experience selection for multicutural education. Above all, we think that it is necessary to develop the model of multicutural teaching-learning experience selection classified by objects involved in multicutural education.