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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Digital Convergence
Journal Basic Information
Journal DOI :
The Society of Digital Policy and Management
Editor in Chief :
Volume & Issues
Volume 10, Issue 11 - Dec 2012
Volume 10, Issue 10 - Nov 2012
Volume 10, Issue 9 - Oct 2012
Volume 10, Issue 8 - Sep 2012
Volume 10, Issue 7 - Aug 2012
Volume 10, Issue 6 - Jul 2012
Volume 10, Issue 5 - Jun 2012
Volume 10, Issue 4 - May 2012
Volume 10, Issue 3 - Apr 2012
Volume 10, Issue 2 - Mar 2012
Volume 10, Issue 1 - Feb 2012
Selecting the target year
Methodology for Measuring the Quality of Three-Dimensional Television
Byun, Dae-Ho ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 1~9
Emerging three-dimensional television (3DTV) as a new IT product shows a possibility that television is not for just watching broadcasting, but an attractive tool for applying it to our real life. Three dimensional television is generally more effective and attractive than two-dimensional television (2DTV). But it still needs continuous technological improvement to solve its inherent limitations until many customers decide to purchase 3DTVs without hesitation. Innovative products like 3DTV encounter a quality problem leading purchase decision by customers. Quality is regarded as one of the most important factors affecting customers to adopt and use the product. Furthermore, measuring quality effectively is considerable for the 3DTV research. In this paper, we suggest the Analytic Hierarchy Process(AHP) method for evaluating 3DTVs in a view of quality. We describe quality criteria affecting the 3DTV selection through a literature survey and develope an analytical method for measuring quality. We classify the quality of 3DTV into four types and suggest a concept of the quality ratio as a measurement criteria instead of the quality gap. Though a numerical example, we show how priorities of 3DTV with versatile manufacturers is computed.
Policy Implications for the Smart Work Diffusion: Focusing on the Perceptual Differences on Organizational Effectiveness between Smart Workers and Office Workers
Choo, Shi-Gak ; Sohn, Young-Kon ; Jeon, Sang-Gil ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 11~22
Smart work, which is a new way of working at out-of-home instead of an office, has become a widespread practice because it is considered as beneficial for both organization and employee. This study is conducted to investigate the differences about attitude toward the organizational effectiveness between smart worker and office worker in a call center. The result showed that the perceived advantages of smart worker(higher service climate, job satisfaction, organizational commitment, service capability) are more positive than those of office workers. Based on this result, the implications and policy directions of smart work were discussed.
An Understanding of Impact of Security Countermeasures on Persistent Policy Compliance
Park, Chul-Ju ; Yim, Myung-Seong ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 23~35
The goal of this study is to identify factors that influence on the persistent information security compliance intention of employees. Antecedents suggested in research model are security awareness training and perceived effectiveness of information security policy. Research results show that security awareness training has a positive effect on persistent information security compliance intention as well as effectiveness of information security policy. While policy breadth, which is one of the effectiveness of information security policy, influences on persistent information security compliance attitude and intention, policy brevity does not effect on persistent information security compliance intention. Conclusions and implications are discussed.
Design of LED TV Multi Test Unit
Kouh, Hoon-Joon ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 37~43
LED TV integration test unit are the equipment for testing LED BLU as LED BLU's operation, error check, AGING work. The previous test unit were inconvenient because it must change test unit in production line according to LCD's kind and size. This paper develops by integration style test unit that can accommodate various LED TV BLU model of 32 ~ 52 inch that is not one LED TV BLU model. We make that output current is various to dimension of 80 ~ 215 mA. We make functions that are LED BLU state check, Diming and heat occurrence mitigation. Also we develop firmware program and that the program can be upgraded and that can support new panel.
An Exploratory Study on Electronic Culture Map of Mind Humanities using Smartphones
Baek, Hyeon-Gi ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 45~53
This research aims at developing an electronic culture atlas using smart phones as a way to share the research results of Mind Humanities. An electronic atlas offers the web service of a great deal of information without the limitation of paper, which is different from the existing paper maps. When the concept of culture is added to an electronic atlas, it becomes an electronic culture atlas. To create an application program using smartphones, their various features should be understood and the development method to maximize them is necessary. Accordingly, in this paper, what needs to be taken into consideration for the service based on smartphones and the characteristics of smartphones to be considered in the development process were examined.
Efficiency Analysis of Government Budget to HRD Program in the field of Information Technology : IT Research Center Case
Lee, Jung-Mann ; Cheon, Won-Suk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 55~62
This paper analyze the DEA(Data Envelopment Analysis) efficiency of government budget to HRD program(ITRC) and correlation and regression between its inputs and outputs in the field of information technology. First, empirical results show that the relationship between the supporting period of government budget and scientific research & HRD outputs is respectively irrelevant. Second, another finding is that the relationship between government budget and HRD output is positive. Finally, DEA efficiency analysis implicates that SW/digital contents, digital TV, information security, intelligence robot, next generation PC, next generation mobile telecommunication, home network, mathematics, IT SoC are more efficient than any other technology fields.
A Study on the Impact of Consultant's Competencies on Service Quality and Performance of Consulting
Shin, Dong-Ju ; You, Yen-Yoo ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 63~78
This research aimed at constructing consultant's competencies of having the biggest effect upon consulting performance with competencies, knowledge and attitude, clarifying the effect upon service quality and consulting performance and being useful for some researches developing future consultant's competencies and looking for service quality improvement plan. The results of the study can be summarized as follows. First, it was identified that the consultant's competencies had positive effect upon consulting service quality. Second, it was verified for service quality to have positive effect upon consulting performance. Third, consultant's competencies proved that it has positive effect upon consulting performance.
The Impact of Characteristics of Enterprise Information Systems on Business Performance: the cases of Taiwan companies
Kim, Dae-Kil ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 79~93
Despite growing interest and attention from researchers and practitioners in management studies, empirical research has been limited on how factors that influence an organization's business performance are affected by certain characteristics of enterprise information systems (IS), such as maturity and infrastructure. This study reports on an empirical analysis of survey data to identify relationships among the informatization level, the business environment, and IS maturity and infrastructure related to business performance-based on financial and non-financial performance measurements-from the perspective of 136 Taiwan firms. The survey questionnaire respondents were drawn from individuals in each of these firms who were typically working in divisions related to business performance functions. Structural equation modeling was used to test the hypotheses that came from the research model in this study.
A Study on the influence of Empowering Leadership to Creativity : Moderating Effect of Leader-Member Exchange
Nam, Yu-Jin ; Kang, Eun-Gu ; Lee, Sun-Kyu ; Cha, Young-Chuel ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 95~106
The purpose of this paper is that analyze the influence of empowering leadership and constituent individual of organization's creativity and the moderating effect of leader-member exchange. For the verify the variables relationship, we perform the hierarchical regression analysis. As a result, empowering leadership positively effect creativity when appear the leader's leading by example, coaching, informing and showing concerning. And also, we are confirm the moderating effect LMX. To conclude, Empowering leadership influence positive and negative effect to creativity by the sense of the affect, the loyalty, the contribution, professional respect.
An Empirical Study on Intentions to Use of Smart TV
Lee, Dong-Gun ; Lee, Sang-Joon ; Choi, Beom-Jin ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 107~118
Smart TV is expected to take the center stage of the recent "smartization" trend in IT and consumer electronics as it performs a hub for various smart IT devices, such as smart phone, smart pad, PC, etc. It is distinct from traditional TVs or even IPTVs in the sense that it provides immersive and interactive experiences via apps downloaded through TV app store. Smart TV could serve as a new intermediary device between other smart devices and the Internet. While it started experiencing a rapid growth, little research has been conducted to understand this emerging technology in terms of its user acceptance and adoption by users. The current research attempts to fill the gap in the field by examining factors and processes for this new technology to be adopted by users. This paper draws on theories of IT acceptance and use, such as the "Unified Theory of Acceptance and Use of Technology", to investigate factors affecting "intention to use" of smart TV. The proposed research model is analyzed using the structural equation modeling approach. Findings show that such factors as innovativeness, switching cost, switching benefit, service interface, and user interface affect users' intention to use smart TV, through effort expectation, performance expectation, and social influence. Theoretical and managerial implications are discussed.
A Study on the Effect of Social Media on Country Image and Purchasing Intention: Focused on Chinese Consumers
Li, Guozhong ; Park, Seong-Taek ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 119~128
The changing paradigm due to the emergence of smart phone and the rapid spread of internet-based social media usage is considerably impacting the politics, economy, society, culture and many other fields. As the new communication tools, social media is receiving spotlight for its advantage of low cost but high efficiency. With the accelerating of the fulfillment of knowledge-based economy, country image is more and more recognized as the core competitiveness of a country. Therefore, it is very important to grasp the factors that affect country image. In this study, a literature review on the factors provided was conducted and affecting factors on country image were analyzed. In addition, on the assumption that social media, which are widely used on current days, have meaningful effects on country image and purchasing intention, features of social media are added as variables and analyzed. The results of analysis show that social media has meaningful effects on the country image and purchasing intention.
Internet article's context and attention effects of the attitude toward advertising and corporate image
Kim, Eun-Hee ; Yu, Seung-Yeob ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 129~136
This study is presented on the corporate advertising strategy utilizing internet on corporate social responsibility in the context of the articles. To this end, Internet articles divided into positive and negative contexts, and has even attracted the attention of Internet articles and high /low and then separated into groups on ad attitudes and corporate image, the interaction effect was examined. Firstly, the Internet, a low level of condition of the article noted, in the context of a positive than a negative context, recall rates were higher. Second, the context of Internet articles and attention on the interaction effect between attitude toward advertising appeared. Third, the context of Internet articles and attention on the interaction effects between the corporate image appeared. Finally, the context of Internet articles and attention on competitive interactions between the corporate management was effective. Thus, the context of Internet articles based on the level of attention and context to determine the effect of advertising by consumer advertising awareness and favorable attitude toward corporate advertising and corporate image enhancement and competitiveness of business management can be an effective strategic plan suggests that.
Determinants of the User's Satisfaction and Continued Usage Intention in IPTV Services
Jung, Chul-Ho ; Chung, Young-Soo ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 137~146
The purpose of this study is to identify the influecing factors on the user's satisfaction and continued usage intention in IPTV services. For this purpose, a research model and hypotheses are developed based on the relevant literature reviews. Data have been collected from 310 users who have used IPTV and the research hypotheses were tested by covariance structural model analysis. The results of this empirical study are summarized as follows. First, perceived enjoyment was confirmed to have a positive effect on user's satisfaction and continued usage intention, however, we found no evidence of a statistically significant relationship between perceived enjoyment and perceived usefulness. Second, perceived ease of use was found to positve influence perceived usefulness, however, we found no evidence of a statistically significant influece on user's satisfaction. Third, confirmation was found to positively influence satisfaction and continued usage intention. Fourth, perceived usefulness had a positive influence on continued usage intention, and both perceived usefulness and satisfaction had a positive influence on continued usage intention. Based on these findings, we suggested the implications and further research directions.
A Study on the Influence of Subjective Norm and Task Media Fit of utilizing of Use intentions : Focused on the Mediating Effects of Consulting Application
Jo, Young-Jun ; Lee, Seung-Hee ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 147~157
In this study, User intention also factors that Consulting application and Subjective norm, Task media fit factors also impact on User intention was examined. In this process, especially Subjective norm and Task media fit of SNS in each dimension to User intention about the impact of Consulting application was in each carried out to examine the mediating effect. The test result used in this study the Subjective norm, Task media fit and Consulting application in a significant positive(+) User intention also was effective. And verifying the results of the mediating effect of Consulting application, Subjective norm and Task media fit has proven to be effective in all parameters. The results of such individuals or companies with Consulting application of SNS. SNS Subjective norm and Task media fit are aware of the factors influencing the Strategy envisions an appropriate response, such as to provide Suggestions.
Cyber impact on education and job satisfaction -Certificate holders in the center of-
Chung, Yong-Geol ; Lim, Sang-Ho ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 159~165
In this paper, the qualification process to target trainees of 200 questionnaires collected 158 call was using the SPSS 18.0 statistical program was statistical results are as follows. First, the demographic characteristics of 158 people a total of 146 people men (92.4%) were 30 and 40 adults. Second, according to gender for women than men showed high satisfaction of sayibeogang. More than a college education group showed a high level of satisfaction. Depending on the marital satisfaction of married people was higher sayibeogang. In addition, cyber-lecture on satisfaction surveys women, highly educated, married, educated in the group were satisfied. 74.5% of total variance, variance, with 88.7 percent reliability was very high reliability. Thus, students' demographic variables, motivation, learning to fit in the field of instructional design and content to support the various efforts will be.
The Regulations by Criminal Law against any Testifier's Untrue Statement in the Investigation Procedures
Yoo, In-Chang ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 167~172
There is no substantive enactment in our country to regulate testifier's false statement in the process of investigation under current law. In consideration of such investigation reality, there exist predominant view that the regulations against testifier's untrue statement are necessary to fine actual truth on criminal justice. However, such view is not quite agreeable, for it holds a probability that excessive investigation rights might cause infringement on personal rights. It's because of human rights protection that the criminal justice puts before the finding of actual truth as its biggest principle, and as we see above, any testifiers' untrue statement are already punishable, although restrictive, through interpretation of deceptive scheme under current law such as obstruction of justice, crimes of sheltering or flying a criminal or calumny.
Customers Perceived the Image of S Corporations and Relationships between Commitment to the Study of the Impact
Choi, Seung-Il ; Kim, Dong-Il ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 173~179
In this study, gieopjung S corporations around the country the customer's perceived image of S corporations and relationships affect the relationship between commitment and see it through the marketing strategy was to become the foundation of the relationship of the findings customers commitment to S corporations used to think showed significantly affect impartiality. Growth of corporate commitment to the relationship between S corporations also affect to some extent because of the image rather than just winning and how much that technology can be seen to affect the Saints. In addition, does not affect the reliability of several factors, innovation, enterprise-wide chief executive officer, and so on image based on careful consideration of a more customer-oriented company with a reliable image of the future must be concerned with is improving.
New Method to Calculate Cost of Capital for Telecommunication Market
Kim, Chang-Soo ; Chon, Mi-Lim ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 181~190
Cost of capital is one of the key factors of accounting regulation policy for telecommunication market. This paper aims at investigating efficient policy improvements concerning accounting regulation for telecommunication market focused on cost of capital calculation methods and its application. At First, cost of capital estimating method should be improved. In estimating the cost of equity capital, it is necessary to use benchmark method for Equity risk premium. It will reduce analytical errors caused by a rapid economic change and inflation. It is also more desirable to use debt premium adding method for the cost of debt capital. Optimal capital structure method may be considered a better way to estimates capital structure. Secondly, cost of capital estimating process also has to be reformed. Telecommunication industry changes rapidly so it does not reflect fast environmental changes. Therefore, cost of capital should be calculated every year. Cost of capital should be calculated by individual companies. There is information asymmetry between regulators and regulatees. Because of that cost of capital calculating process takes long time and cost a lot. To solve this problem, regulator should legislate on cost of capital calculation and then regulating companies report the calculating result. Lastly, major telecommunication companies are all listed now and it is possible to calculating it separately. We must continuously improve the estimating method and application of cost of capital and due to the fast growing of telecommunication industry. The process of determining the calculating method must be discussed and best method chosen.
A Study on Create Depth Map using Focus/Defocus in single frame
Han, Hyeon-Ho ; Lee, Gang-Seong ; Lee, Sang-Hun ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 191~197
In this paper we present creating 3D image from 2D image by extract initial depth values calculated from focal values. The initial depth values are created by using the extracted focal information, which is calculated by the comparison of original image and Gaussian filtered image. This initial depth information is allocated to the object segments obtained from normalized cut technique. Then the depth of the objects are corrected to the average of depth values in the objects so that the single object can have the same depth. The generated depth is used to convert to 3D image using DIBR(Depth Image Based Rendering) and the generated 3D image is compared to the images generated by other techniques.
Object Segment Grouping for Wireless Mobile Streaming Media Services
Lee, Chong-Deuk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 199~206
Increment of mobile client's information request in wireless mobile networks requires a new method to manage and serve the streaming media object. This paper proposes a new object segment grouping method for enhancing the performance of streaming media services in wireless mobile networks. The proposed method performs the similarity metric for the partitioned object segments, and it process the disjunction, conjunction, and filtering for these metrics. This paper was to decided the partitioned group of object segments for these operation metrics, and it decided the performance of streaming media services. The simulation result showed that the proposed method has better performance in throughput, average startup latency, and cache hit ratio.
Proxy-based Caching Optimization for Mobile Ad Hoc Streaming Services
Lee, Chong-Deuk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 207~215
This paper proposes a proxy-based caching optimization scheme for improving the streaming media services in wireless mobile ad hoc networks. The proposed scheme utilizes the proxy for data packet transmission between media server and nodes in WLANs, and the proxy locates near the wireless access pointer. For caching optimization, this paper proposes NFCO (non-full cache optimization) and CFO (cache full optimization) scheme. When performs the streaming in the proxy, the NFCO and CFO is to optimize the caching performance. This paper compared the performance for optimization between the proposed scheme and the server-based scheme and rate-distortion scheme. Simulation results show that the proposed scheme has better performance than the existing server-only scheme and rate distortion scheme.
Efficient Group Key Agreement Protocol (EGKAP) using Queue Structure
Hong, Sung-Hyuck ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 217~222
Group communication on the Internet is exploding in popularity. Video conferencing, Enterprise IM, desktop sharing, and numerous forms of e-commerce are but a few examples of the ways in which the Internet is being used for business. The growing use of group communication has highlighted the need for advances in security. There are several approaches to securing user identities and other information transmitted over the Internet. One of the foundations of secure communication is key management, a building block for encryption, authentication, access control, and authorization.
Determining the shortest paths by using the history of IP network traffic records
Hong, Sung-Hyuck ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 223~228
There are many algorithms to improve the network traffic and to avoid losing packets in the network. This paper proposed determining the shortest paths for hops, which are in the middle of the source and destination. The shortest path in this paper means the fastest path between them. Recently, dynamic routing algorithm is currently used now but this paper suggests the fastest paths between the source and the destination is by using the record of the network traffic history. People are using the networking and the network traffic is always corresponding to how many people use the networking in specific time. Therefore, I can predict the network condition by referring to the history of network traffic record, and then the shortest path can be produced without using RIP too much. It will be helpful to improve the network traffic.
An Authentication Protocol for the Security of RFID Tags and Readers using Random Number
Bae, Woo-Sik ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 229~233
A RFID system is a technology for detecting information on an object through wireless communication between a tag on the object and a reader, and its applications are being expanded to various areas. Because of its wireless communication, however, there are many vulnerabilities in security. Until now, many studies have been executed in order to solve problems related to the security and stability of RFID. In order to resolve vulnerabilities in existing security methods for privacy protection, this study proposed an authentication protocol that uses hash values received from tags and random numbers. When the proposed protocol was implemented, it was safe from various types of attacks between tag and reader and between reader and DB. Furthermore, compared to recently proposed protocols, it could implement a RFID system with enhanced security and less computation in tags.
Integrative Security Model Design for Academic Affairs Database
Jeong, Yoon-Su ; Shin, Seung-Soo ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 235~241
To improve educational excellence and quality, academies carry forward integrative security model related to academic affairs including personal information. This paper proposes an integrative security model for academic affairs database, which guarantees DBMS access control, confidentiality, integrity, and security inspection. This proposed model considered that most academies can't make good use of data security product and suggests a detailed measure to realize the confidentiality based on the function of DBMS.
Designing and Implementing a PKI-based Safety Protocol for Electronic Medical Record Systems
Jin, Gang-Yoon ; Jeong, Yoon-Su ; Shin, Seung-Soo ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 243~250
This study proposes new protocol protecting patients' personal record more safely as well as solving medical dispute smoothly by storing the record not into a computer server in hospitals but into the National Health Insurance Corporation computer server. The new protocol for electronic medical record is designed using RSA public key algorithm and DSA digital signature. In addition, electronic medical record systems are built up with more safety and reliability through certificate authority. The proposed medical information systems can strengthen trust between doctors and patients. If medical malpractice occurs, the systems can also provide evidence. Furthermore, the systems can be helpful to reduce medical accidents. The systems could be also utilized efficiently in various applied areas.
Wavelength Assignment Method using Upstream Bandwidth Wavelength Division of EPON
Seo, Chang-Jin ; Jang, Yong-Suk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 251~256
In this paper, we addressed the problem of upstream bandwidth in EPONs. We presented a wavelength division EPON supporting QoS in the differentiated services framework. It was shown that the bandwidth allocation by priority scheduling, under our assumptions for traffic behavior, will result in an unexpected behavior for high priority class and we suggested the use of weighted priority scheduling to alleviate this problem. Our wavelength division EPON supporting QoS allocates effectively and fairly bandwidths and wavelengths between ONUs in the differentiated services framework. Moreover, we showed better performance in terms of average and maximum end-to-end delay, as well as network throughput, utilization compared with some other algorithms. We used simulation experiments to study the performance and validate the effectiveness of the proposed network and algorithm.
Implementation of SNS based on an Open Wi-Fi & APPosition Information
Seo, Chang-Jin ; Kang, Hee-Won ; Jang, Yong-Suk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 257~263
Smart phones become popular all over the world recently. At the same time, demand of various additional services, such as SNS by utilizing low-cost reliable Wi-Fi network and position information, is expected to keep growing. In this paper, Implementation of SNS based on an Open Wi-Fi & Position Information was proposed. This service is achieved by constructing an Open Wi-Fi network based on a built AP access information database. And in order to provide durable connection in mobile environment, RSS detect AP switching module and mobile IP are utilized in the proposed service. Furthermore, with the utilization of GPS information of AP, AP providers could delivery various information such as advertisements, promotion events. In addition, it is possible for AP users to communicate with each other, thus a position information based SNS was also proposed in this paper.
Differential Bandwidth Allocation Method using Upstream Bandwidth Wavelength Division of EPON
Seo, Chang-Jin ; Jang, Yong-Suk ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 265~270
The subscriber access network is cause of the bottleneck phenomenon because equipment and infrastructure were not originally designed for busty high-bandwidth traffic between MAN(Metro Area Network) and LAN(Local Area Network). Whether riding on shorter copper drops or optical fiber, Ethernet is emerging as the future broadband protocol of choice, offering plug and play simplicity, and low cost. EPON(Ethernet Passive Optical Network) combines point-to-multipoint optical infrastructure with low-cost high-bandwidth Ethernet. The future broadband access network will be a combination of point-to-point and point-to-multipoint Ethernet, optimized for transporting IP data, as well as time critical voice and video. EPON is being considered as a novel communications infrastructure for next-generation broadband access network for the convergence of low-cost Ethernet equipment and low-cost fiber infrastructure. But, EPON has a problem with duplex multimedia services. It is the insufficiency of bandwidth for upstream. Because all ONUs use a shared transmission media for upstream. In this paper, we addressed the problem of upstream bandwidth in EPONs. We presented a wavelength division EPON supporting QoS in the differentiated services framework.
The Effect of Mental Practice on Gait and Quality of Life in Stroke Patients
Kim, Jin-Seop ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 271~277
The aim of this study was to evaluate the effects of mental practice to improve on gait and quality of life in stroke patients. Participants were randomly allocated to two groups: experimental(n=10) and control (n=10). Both groups received neural development treatment training for 6 sessions 1 hour per week during 6 weeks. Experimental group practiced additional mental practice for 3 session 10 minutes per week 6 weeks. Results were evaluated by spatial-temporal parameter, 10m walk test, and quality of life. There were significantly increased by mental practice in outcomes of the gait performance from the gait velocity, cadence, double support, single support, 10m walk test. There were significantly increased by mental practice in outcomes of stroke impact scale from the strength, social participants, and stroke recovery. In conclusion, the mental practice improves gait performance and quality of life in stroke patients. The results suggest that mental practice training is feasible and suitable to stroke patients.
A Study on Factors Affecting the Reception Attitude toward Electronic Medical Record
Jin, Hye-Eun ; Choi, Eun-Mi ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 279~286
The purpose of this study was identified the influence of introducing Electronic Medical Records (EMR) on reception attitude, based on literature investigation, the study converted utility and serviceability from Davis TAM Model into awareness of effects in computerized database except attitude variable. The electronic survey for doctors, nurses, medical technicians of a general hospital located in Gangwon-do was performed for 4 weeks from Nov, 11th, 2009 to Dec, 2nd and the collected data was computerized through SPSS 12.0. The factors influencing reception attitude were divided into 4 categories; basic characteristics of the individual, awareness of privacy protection, awareness of effects in computerized database, technological preparation and measured detailed specific variables. As the result of this, the factors influencing reception intention were different depending on recognizing the effectiveness caused by computerization of medical information. Especially, in terms of the difference between basic characteristics of the individual and awareness of privacy protection, there were significant distinctions among 3 sectors; general, transactional, online information management. The significant effects were identified from information management related to business or online information management depending on experiencing security education.
Patient Management Through Simulation Modeling in the Medical Center
Lim, Ji-Hye ; Kang, Sung-Hong ; Kim, Won-Joong ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 287~295
This study aims to develop the methods for effective patient flow in the medical center through simulation modeling. To achieve this, we developed three simulation scenarios based on max/min processing time and addition of X-ray by 15 patient tracks from real hospital data. The simulation software used in this study is Flexsim HC 2.7. According to the scenario 1 on 15 patient tracks' LOS by max processing time, there is a great difference between average length of stay(LOS) and max LOS. And average LOS increases greatly depending on the number of patients by the hours. There is no need to add extra X-ray because the addition of X-ray has not much influence in average LOS. It is possible to make good decisions on patient flow management and medical equipment purchasing through simulation modeling. The concrete simulation scenario as a tool for decision support will contribute to efficiency in hospital management.
A Study on the Strategy to Develop Human Resources in the Green Health Industry
Han, Jin-Young ; Choi, Eun-Mi ; Ji, Ke-Yung ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 297~308
This study is intended to estimate the demand for the green health industry market, to seek for the strategies to develop human resources and to provide fundamental data for development of local green health industry specialization programs in the manner of investigating the intentions to participate in and opinions about the green health industry. Data were collected from 190 and surveyed from 5 to 19 in November 2010. Based upon the priority survey and factor analyses of educational contents for development of human resources specializing in the green health industry, there is some difference in the classification of all domains between the two groups, however the results concerning the cognition of the language education of educational contents and the priority of medical tourism marketing are similar between the two groups. As one of the biggest problems with medical tourism is the difficulty of communication during medical examination and treatment, it is desirable to develop professional human resources with global competitiveness based on customized education as well as excellent language skills by the specialized fields of green health industry.
The Association between health beliefs and receiving hepatitis B Vaccinations among college students
Kim, Mee-Jung ; Park, Jong ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 309~316
This study used the health belief model of college students to investigate the not with regards to their health status awareness, health management, and their health beliefs. Logistic regression analysis showed a significantly high odds ratio between intent of hepatitis B vaccination and gender, The trend for receiving a hepatitis B vaccination was highest in groups with awareness of the high susceptibility and seriousness of hepatitis B, groups with awareness of the low barrier, and women as opposed to men. Therefore future research is needed regarding appropriate promotions of the seriousness and benefits of hepatitis B vaccinations as well as the development of a integrated health education mediation program and effect evaluation.
Community health promotion and improvement of business for No-Smoking
Han, Myung-Yee ; Kim, No-Ma ; Chandrkant, Mehta Jaydip ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 317~322
Public Health "NO-Smoking Clinic" smokers nine times more than 6 months smoking cessation counseling services and CO measurement, nicotine aids(patches, gum and candy) to provide. Behavioral enrichment items and memorabilia, including the provision of smoking cessation, smoking, andsmokingreducesinductionpracticeto improve the health of local residents to promote. Lifestyle habits such as smoking and excessive drinking, such as hyperlipidemia, and obesity is a major factor causing chronic disease, economic loss, and even new philosophy of life as a healthy culture is a factor that destroys. Smoking, heavy drinking, such as healthy life styles and cultural values of life as well as the economic value of medical care and also when you consider that there is a close relationship, such as smoking prevention and smoking cessation and moderation of the business and institutions involved in health education institutional support for the "NO-Smoking Clinic" should be parallel to the landing.
Impact of Role-play activities on academic achievement and learning attitude in science class
Kim, Myung-Sook ; Oh, Ki-Sun ; Cho, Dal-Hyun ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 323~331
Cell division in biological education is an important and unintelligible unit. Most of students have no interest in learning the content, and don't concentrate on it because cell division unit contains relatively difficult content. In this vein, during considering the effective learning methods, the researcher found role-play as the method for student's positive access to important and unintelligent learning content. Effect of role-play on their learning achievement of science was analysed through the Chapter of cell division on 3rd grade of middle school students. For this study three levels of middle school students were selected from the school located in Seoul. And divided this students into experiment group and control group by 2 classes respectively. Before putting into practice this instruction, there took into account the before and after of students' learning achievement and their learning attitude by using same questionnaire. On the other hand, the researcher put into practice co-variate analysis by using SPSS statistical package as the measurement method.
A Study on Job Satisfaction Through Lifelong Education for Small & Medium Businesses Workers
Choi, Byung-Joo ; Oh, Ki-Sun ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 333~339
This study involved a small business workers continuing education according to characteristics and job satisfaction by comparing the development of effective continuing education programs to improve workers' skills is to derive the key indicators. Job satisfaction than those below 40 in the 20s incentives, skills development, human resource management, organizational commitment was higher throughout the 20 to 30 units from 40 to 50 single professionals and young workers compared to their job satisfaction is higher, the number of years worked less than 5 years working in a different number of years than those in group incentives, skills development, human resource management overall significantly higher, rank in the lower position due to differences in job satisfaction was higher than the upper position, technical, administrative two trades was higher than Therefore, by improving job satisfaction in the workplace contributes to strengthening the competitiveness of enterprises and workers must strive to improve the quality of life.
An Auto-blogging System based Context Model for Micro-blogging Service
Park, Jae-Min ; Lee, Sang-Yong ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 341~346
Social network service is service that enables the human network to be built up on web. It is important to record users' information simply and establish the network with people based on the information to provide with the social network service effectively. But it is very troublesome work for the user to input his or her own information on the mobile environment. In this paper we suggested a system which classifies users' behavior using context and creates blogging sentences automatically after inferring the destination. For this, users' behavior is classified and the destination is inferred with the sequence matching method using Naive Bayes classification. Then sentences which are suitable for situation is created by arranging the processed context using the structure of 5W1H. The system was evaluated satisfaction degree by comparing the created sentences based on actually collected data with users' intension and got accuracy rate of 88.73%.
The Implementation of Visual Effects on Physical Phenomena of Nature Using Particle System
Kim, Kyoung-Nam ; Lee, Myoun-Jae ;
Journal of Digital Convergence, volume 10, issue 4, 2012, Pages 347~352
Uncertain physical phenomena of nature are a frequently researched area in emotional engineering technology and visual expression of art. This paper suggests possibility for implementation of physical phenomena (percolation, dispersion, and flow) of nature using Unity 3D engine's particle system, which have already been analyzed in a previous study  on modern paintings that emphasized physical properties. This paper proposes an easy implementation method for uncertain physical phenomena of nature for artists experiencing difficulty in acquisition of knowledge on computer graphics programming, providing an idea for engineers conducting research on emotion-based technology.