• Journal of Korean Library and Information Science Society
• /
• v.34 no.3
• /
• pp.125-145
• /
• 2003

The core version of UDC(Universal Decimal Classification) is available in an electronic form called MRF(Master Reference File) which supports the maintenance of the quality of the scheme as a working tool for the UDCC(UDC Consortium) by annual reviewing its content and initiating revisions and extensions. In this paper, we discuss outcomes of our in-depth analysis of the geography, biography and history disciplines in UDC focused on the its evolutions and characteristics, including the common auxiliaries of place, the common auxiliaries of time and the common auxiliaries of race, ethnic grouping and nationality. Based on the in-depth analysis, we suggested some ideas which can be applied into the history class of KDC(Korean Decimal Classification). In particular, its principle of combination methods in the history of individual regions, the way of its assignment of physical geography and human geography in the same division, the possibilities of the extension of the table of geographical division and the adaptation of the table of chronological division in KDC.

• Journal of KIISE:Information Networking
• /
• v.37 no.4
• /
• pp.301-306
• /
• 2010

We propose the control channel access scheme for multi-interface multi-hop cognitive radio (CR) environment having a cluster structure. Due to the difficulty of obtaining common channels across the entire CR network, most multi-interface multi-hop CR networks put the control channel outside the CR bandwidth and dedicate one network interface to it in order to exchange the control information such as the activation of licensed users. However, this will be the waste of the network interface. Our focus is how to alternate between the control and the data channel without multichannel hidden node problem under the cluster structure where CR nodes connect with neighbors through multiple data channels. By using simulation, we evaluate the performance of the proposed scheme. The results show that the proposed scheme achieves higher network throughput than the dedicated scheme where one network interface card should dedicate to the control channel and cannot be used for data transmission.

• Journal of Korea Port Economic Association
• /
• v.26 no.1
• /
• pp.105-130
• /
• 2010

Container terminals in Gwangyang Port are facing in domestically and internationally a lot of changes including opening of Busan New Port and China ports. Compared to new ports, container terminals in Gwangyang Port possess old equipment and facilities. Therefore, in order for Gwangyang Port to maintain its service level and remain competitive, it needs to undergo remodeling to enhance productivity economically. Remodeling activities should be implemented on a continual basis by developing and applying new technologies such as those for gate system, yard system, berth system. In order to review the alternative, we performed questionnaire survey and expert interview. From the results of analysis, we suggested remodeling technology alternatives, priority of remodeling and improvement effect by remodeling introduction stage.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.6
• /
• pp.2707-2712
• /
• 2012

Desktop-based computing environment is changed into mobile computing using smart phone and cloud computing providing common behavior and big data by network. Because of this transformation software development and operating environment is changed into heterogeneous distributed environment. As a result, dynamic service composition or changement is required. However, there is few research of techniques supporting service composition or changement dynamically in this situation. This paper suggests a technique for customizing services dynamically of mobile applications based on android platform. Especially we propose a customization technique of service by applying ontology technique to improve sharing and reuse of service. We applied proposed technique into meeting notification system, and obtain that it can be customized into various services such as email, sms, twitter service, and so on.

• The Journal of the Korea Contents Association
• /
• v.18 no.10
• /
• pp.121-133
• /
• 2018

This study begins with focus on the public opinion and political views on embracing Yemeni refugees in Jeju. The public opinion is demanding amendment or even abolition of the Refugee Act. The argument opposing Yemeni refugees is persuasive enough in terms of public order and safety, cultural conflicts and economic interests, but it is going against the universal and authentic values that must be pursued by a forward-looking society. It is natural that the power exerting political discretion keeps an eye on public opinion. However, no matter how many people express it, unjustified public opinion must not be a foundation for political decision. This study will examine the shadows of public opinion and related concepts for those reasons, and review Augustine's concept of 'love' as a value to refer to in making a communal decision. Conflicts lead to insecurity and rift. Without sensus communis (common sense), the rift will not be healed. This study raises the need to resolve such conflicting state and seeks insight from Augustine.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.31 no.4B
• /
• pp.333-343
• /
• 2006

MANET and P2P applications have a common nature that they don't have any fixed infrastructures that might maintain network topologies. With such common characteristics, a P2P application can be a killer application over MANET. Due to absence of reliable node which serves indexing services in MANET, fully distributed P2P applications are more suitable for MANET. By using DHT like Chord, we can save network bandwidth and avoid a point of failure of a directory server. However, since MANET allows nodes to depart from network freely, P2P file sharing applications using Chord lookup protocol should address how to recover the keys stored at the departed node. In this paper, we propose BU-Chord in order to detect and recover the departure of nodes by creating and storing backup file information in distributed manner. Our BU-Chord shows off better performance than existing Chord especially in case of high departure rate of nodes.

• Journal of Korean Library and Information Science Society
• /
• v.44 no.2
• /
• pp.167-195
• /
• 2013

According to the Korean Library Act, a regional representative library is fully responsible for the integrated management of all collections held by local libraries. It intends to resolve space problem for collections and to prepare room for new materials in local libraries. Under the Act, a regional representative library should make a plan for a regional repository library to accomodate overflows from local library collections as soon as possible. The purpose of this study is to figure out the meanings of 'regional repository library' as a cooperative storage facility of local library collections, and to suggest the proper solutions for developing a regional repository library with case of Busan metropolitan city. To the end, this study (1) examined the extent of space shortage in local libraries of Busan, (2) assessed the needs of both local libraries and library users for a regional repository library, and finally, (3) suggested the detailed procedure and methods for establishing and managing a regional repository library in Busan metropolitan city.

• Korean journal of communication and information
• /
• v.34
• /
• pp.275-305
• /
• 2006

The main research question of this paper is as follows: How can broadcasting both cause the crisis in democratic participation and yet also offer the solution? The contradiction in broadcast localism has never been adequately resolved in spite of regulation at all in practice, in that localism simply cannot account for the diversity of modern life and for the external forces that incorporate local communities into much larger economic and communications network. The concept of locality in local television, however, has been multiplied and enlarged in order to adjust to "time-space compression". Recently the local television have been "interface" combining and negotiating the globalization of media market and the decentralization of political power, the economies of scale and the activation of local democracy, consequently aiming at the horizontal-cooperative network instead of old vertical-dependent one.

• Convergence Security Journal
• /
• v.19 no.4
• /
• pp.13-22
• /
• 2019

The purpose of this study is to suggest the educational system and direction of cyber operations officers of non-cyber operations forces who do not specialize in cyber operations. In order to carry out cyber operations as a joint operation, non-Cyber Operations officers must also know about cyber operations, but there is no education system for them at present, Since there is almost no previous research on this, research in the relevant field is necessary. Therefore, the education system was developed based on the prior literature review, that is, the education system, that is, the necessity of education, the object of education, the goals and contents of the education, and the curriculum. In addition, the relevant experts confirmed the validity of each item with Delphi method, and as a result, some improvement was needed, but it was shown to be suitable as a whole. In addition, detailed educational program development can be developed based on this in the future.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.2 no.4
• /
• pp.203-208
• /
• 2007

Ministry of Information and Communication is pushing for IT 839 strategy that has main points : 8 major service which can develop IT industry of Korea on the whole, 3 major infra, and 9 major new growth power. Of these, RFID/USN utilizing service is expected to exert a great influence the whole industry from field that is closely related with our life to national defense, supply, construction, transportation, physical distribution, manufacture, circulation, and service. In domestic case, departure of RFID/USN field is a little bit later than advanced nation's, and a technique difference between domestic field and that of advanced nation is about 2 years. In this situation, in order to develop middleware of various field gearing RFID Tag efficiently, we have to study about user interface and data analysis technique that is used in middleware commonly. This paper searches about WPF that appears in user interface field with up-to-date technique, and embodies 3 dimension visualization information system with WPF.