• Journal of Korea Game Society
• /
• v.11 no.2
• /
• pp.45-56
• /
• 2011

The concept, means, value chain, the persons concerned and possible issues of game item trading in cash are analyzed in this study. The trading is characterized by not only being performed with its own unique business model but also causing issues related to delicate social problems, such as digital contents distribution, work place and gambling. The way of game item trading in cash and its value chain have been changed with game market growth for the past years. I analyzed in this article the new concept of game item trading in cash that is different from the past. Also, analysis on several issues related to game item trading in cash is conducted.

• The Korean Journal of Archival Studies
• /
• no.56
• /
• pp.183-212
• /
• 2018

The study aimed at exploring a direction of development of the conceptual model for organizing public digital records. First, it started with reviewing the possibility of item-oriented records and archival organization, then analyzed RIC-CM developed by ICA EGAD. Second, it investigated the hierarchies of the classes and descriptive information applied to public digital records, as well as showed the necessities of transition from paper-based model to digital-based one. Based on these, it studied to seek possibilities for organizing public digital records not by record groups but by items. Finally, this study proposed the direction of development of the next generation conceptual model for organizing public digital records.

• Journal of the Korean Society of Costume
• /
• v.59 no.6
• /
• pp.106-117
• /
• 2009

The purpose of this study is to present a new vision for high value-added knit wear design by designing and producing knitted one-piece dress by digital textile printing which based on digital making a new industry, culture, and lifestyle in a new millenium. According as casual fashion is more and more popular, preferring knit wear, a key item of casual fashion, continues to increases. Therefore it is important to study knit wear design practically, try a new technique, and represent creative designs. As a method of the study, visual and textural data were investigated for theory of knit and DTP and a variety of knit design samples were illustrated Especially, to perform a study based on the industry, this researcher worked and experienced at J fashion Ltd., knit wear promotion company. Firstly, the theory of DTP was investigated and then 3 knitted one-pieces were designed and produced. The concept of design was digital geometry which represented chic and modern image in digital age. Target was city adult group from the late teens to the late twenties and keeping open mind and active lifestyle and enjoying the activity and unique characteristics of knit wear. This study has developed knitted one-piece design by DTP technique which has been generally applied to woven fabric. This is of great significant in opening a new way of high value-added knit wear design.

• Journal of Information Technology Applications and Management
• /
• v.21 no.4_spc
• /
• pp.485-499
• /
• 2014

Sharing Economy is the modern main item with ICT Development. Of course sharing economic item is the old and long run mainstream, but by the ICT technological development sharing economy is the fostering and affluent factors in the world economic growth. Though, in Korea, till now sharing economy is minimal, that will growth sharply. We can track various business models of sharing economy. Sharing economy is to buy use right not ownership. With the sharing economic business model wee can make also financial sharing model. In finance model we can divide two kind models. First, we can trace small size lending model with p2p type. And second, we can make financial information transaction model. But till now sharing economic system is not activated, because of many reasons. To activate, first we have to set law and various standards, and also government actively support many sharing economy firms and institutions. To catch up developed countries in the field of sharing economy we have to make aggressive and flexible rules and standards.

• Journal of the Korean Institute of Telematics and Electronics C
• /
• v.35C no.4
• /
• pp.11-20
• /
• 1998

Fault simulatior has been used to compute exact fault coverages of test vectors for digial circuits. But it is time consuming because execution time is proportional to square of circuit size. Recently, several algorithms for testability analysis have been published to cope with these problems. COP is very fast and accurate but cannot be used for sequential circuits, while STAFAN can be used for sequential circuits but needs vast amount of execution time due to good circuit simulation. We proposed EXTASEC which gave fast and accurate fault coverage. But it shows noticeable errors for a few sequential circuits. In this paper, it is shown that the inaccuracy is due to uninitializble flipflops, and we propose ITEM to improve the EXTASEC algorithm. ITEM is an improved evaluation method of fault coverage by analysis of backward lines and uninitializable flipflops. It is expected to perform efficiently for very large circuits where execution time is critical.

• Journal of Information Management
• /
• v.33 no.4
• /
• pp.129-144
• /
• 2002

SICI(Serial Item and Contribution Identifier) is intended primarily for use by those involved in the use or management of serial titles and their contributions. And SICI is a standard that is developed for interoperability and electronic data exchange because of increasing need of the unique resource identifier. This paper introduces metadata standard ANSI/NISO Z39.56 that relates serials management. And it examines applications and implementations of Z39.56 toward serials management.

• Journal of Broadcast Engineering
• /
• v.8 no.4
• /
• pp.365-380
• /
• 2003

Since MPEG-21 IPMP has been working on International Standardization activity such as one of DRM systems from 1997, the standardization is recently re-started even though the activity was interrupted. According to the MPEG Brisbane meeting, the CfR of MPEG-21 IPMP will be determined on the next Hawaii meeting, therefore they will announce the CfP. However the CfP announced in MPEG Hawaii meeting but the CfR didn't announce because of unfinished requirement document job. Finally. the proposed techniques will be submitted till June 2004. In this paper, we explained the requirement of standardization based on a broadcasting circumstance and implemented the system of MPEG-21 including the architecture and IPMP systems, then we showed all functionality within the other MPEG-21 elements engines. In case of multimedia stream broadcasting system, it is a real-time processing system, the implemented MEPG-21 Architecture can be shown the use of Digital Item In the MPEG-21 terminal and additional MPEG-21 element engines.

• The Journal of the Korea Contents Association
• /
• v.19 no.8
• /
• pp.276-283
• /
• 2019

The purpose of this study is to evaluate the usefulness of automatic exposure control (AEC) by analyzing entrance surface dose (ESD) and entropy on using automatic exposure and manual exposure. The experimental method was to measure the dose by placing a semiconductor dosimeter on the Rando Phantom for the Pelvis, Abdomen, Skull, and Chest regions. The DICOM file was simultaneously acquired and then entropy was analyzed by using Matlab. As a result, when using the automatic exposure control, dose of all sites was lower than manual exposure's dose and entropy was high. In addition, paired t-test was performed for each item and p<0.05 was found in each item. In conclusion, the use of automatic exposure control can be a useful method to contribute to the optimization of the exposure dose and the image quality by reducing the amount of unnecessary radiation amount and information loss that can occur in X-ray examination.

• Journal of Software Assessment and Valuation
• /
• v.16 no.1
• /
• pp.81-88
• /
• 2020

Various methods of differentiating and servicing digital content for individual users have been studied. Searching for association rules is a very useful way to discover individual preferences in digital content services. The Apriori algorithm is useful as an association rule extractor using frequent itemsets. However, the Apriori algorithm is not suitable for application to an actual content service because it considers only the reference count of each content. In this paper, we propose a new algorithm based on the Apriori that searches association rules by using purchase history and usage-time for each item. The proposed algorithm utilizes the usage time with the weight value according to purchase items. Thus, it is possible to extract the exact preference of the actual user. We implement the proposed algorithm and verify the performance through the actual data presented in the actual content service system.

• Journal of the Korea Society of Computer and Information
• /
• v.23 no.10
• /
• pp.73-80
• /
• 2018

The shared economy began with the concept of sharing the physical and intellectual assets of individuals with others. Nowadays, the concept of shared economy is becoming one of the industries as an enterprise type. Especially, with the development of the Internet and smart devices, various forms of shared economy have been developed in accordance with the need of sharing of individual income. Digital content is also a shareable commodity and it is seeking to utilize it as an item of shared economy. Accordingly, when digital contents are used as a shared economy, there are various possible threats -security threats that may arise in the course of transactions, potential for theft, alteration and hacking of contents. In this paper, we propose transaction method and content protection method using block chain-ethereum technology to reduce security threats and transparent transactions that can occur in digital contents transactions. Through the proposed method, the trust of the consumer and the supplier can be measured and the encryption can be performed considering the characteristics of the data to be traded. Through this paper, it is possible to increase the transparency of smart transaction of digital contents and to reduce the risk of content distortion, hacking, etc.