• Journal of Korean Library and Information Science Society
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• v.45 no.4
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• pp.67-93
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• 2014

This study aims to present a direction for local libraries on how to collect folk culture content and provide services in cooperation with public libraries across the country, with a focus on public libraries, in implementing the government policy to collect, classify, store, research, and utilize folk culture content. Results of the study drawn from literature review, surveys, case-studies are as follows: First, based on the advantage of higher accessibility than other institutions in charge of folk culture content provision, libraries should take a role to collect, store, and utilize folk culture content for public purpose of improving knowledge and interests of residents and storing local history. Second, folk culture content collection, enhanced content-creating, and user-oriented services reflecting various demands should be expanded, seeking ways to improve management conditions of folk culture content based on collaboration network between libraries, along with drawing interests and support from the local government and the central government. Thirdly, libraries should provide expanded services of collection, creation, use of folk culture content with a focus on local culture through regular and systematic study and building of folk culture content.

• Informatization Policy
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• v.25 no.3
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• pp.29-51
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• 2018

As the core technology of the Fourth Industrial Revolution, the Internet of Things has been developed and has enabled various services, and personal information has been handled freely in the process. However, the infringement threat of personal information is increasing as more convenient services are provided and more information devices including smart devices are connected to the network. Therefore, this study is to analyze prioritizing personal information protection policy indicators in order to provide IoT services by constructing secure environment for implementing the Internet of things as the core technology of the 4th Industrial Revolution. This study reviewed personal information protection policy indicators based on the literature survey, and identified 3 fields, 9 areas, and 25 indicators through Delphi analysis for experts. The weights were calculated based on the AHP survey for 66 experts and the results were used to present the relative importance and priority of the policy indexes. The results of this study found the policy field was the most important, followed by the technical field, and the administrative field. Of the three areas of the policy field, strengthening the personal information protection laws related to IoT is the most important, while among the indicators, promoting and revising the personal information protection law related to IoT is the most important. Comparisons of the fields, areas, and indicators of IoT-related personal information protection policies found consistent values. The personal information protection policy indicators derived this way will contribute to the nation's competitiveness by expanding secure IoT policies in the future.

• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.3-8
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• 2007

최근 도로 네트워크 환경에서 이동 객체 위치 정보를 관리하고 이동 객체의 미래 위치를 예측하는 이동 객체 위치 예측 시스템의 필요성이 나날이 증가되고 있다. 이동 객체위치 예측 시스템은 교통 관제 및 다양한 응급 상황 시 이동 객체의 미래 위치를 신속히 예측하기 위해 사용되며, 보다 편리한 위치 기반 서비스의 제공을 가능하게 해준다. 이러한 시스템을 위한 대부분의 미래 인덱싱 기법은 일반적으로 이동 객체의 미래 위치 예측을 위해 과거 이동 궤적을 이용하고 있다. 그러나, 수많은 이동 객체의 과거 이동 궤적 관리가 어렵고, 실시간으로 변화하는 이동 객체의 미래 궤적을 반영하기 위한 방대한 미래 인덱스의 갱신 요청으로 인해 인덱스 유지 비용이 증가하여 미래 위치 질의 요청에 대한 신속한 처리 성능이 떨어지게 된다. 따라서 본 논문에서는 이동 객체 위치 예측 시스템에서 방대한 이동 객체의 과거 이동 궤적으로부터 효율적으로 미래 위치를 예측하기 위해 셀 기반의 미래 인덱싱 방법인 PFCT-Tree(Probability Future Cell Trajectory-Tree)를 제시한다. PFCT-Tree는 방대한 과거 이동 궤적을 셀 단위로 재구성하여 인덱스 크기를 줄이고, 셀 내부 경험치를 기반으로 장기간 질의 시 빠른 미래 위치를 예측할 수 있다. 또한 신속한 미래 이동 궤적의 갱신 속도를 향상시키기 위해 미래 시간을 미래 궤적과 분리하여 인덱싱함으로써 위치 예측 오류로 인한 미래 인덱스 갱신 비용을 최소화 할 수 있다. 마지막으로 실험을 통해 도로 네트워크 환경에서 PFCT-Tree가 기존 인덱싱 기법들보다 갱신 및 검색 성능이 우수함도 입증하였다.ential oil (Bergamot, Grapefruit, Lemon, Petigrain)은 농도 의존적으로 ROS 생성을 증가시켰다. 이상의 결과를 종합하여 볼 때 citrus essential oil은 MSH에 의한 melanin 생성을 억제하는 것으로 보아 미백제로서의 개발 가능성이 있는 것으로 사료된다.가 사용될 수 있음을 제시한다.찍 발견되어 크기는 작았으며, 육안적으로 폴립의 Yamada 형태의 분류는 II, III의 형태를 띠고 있었다.EX>로 한반도 후기 백악기의 고지자기극$(Lat./Long.=70.9^{\circ}N/215.4^{\circ}E,\;A_{95}=5.3^{\circ})$의 위치와 유사하므로 암석의 생성 시기는 후기 백악기로 판단하였다. 한편 함평분지에 분포하는 백악기 화산암류에서는 한 개의 정자화 방향과 두 개의 역자화 방향이 확인되었다. 이들 특성잔류자화 방향은 백악기 화산암 형성 당시 암석에 기록된 성분으로써 당시 지구자기장의 상태를 기록한 것으로 해석하였으며, 이중 정자화 방향을 함평분지 화산암의 대표 방향으로 채택하였다 함평분지 화산암의 고지자기 극의 위치는 정자극의 경우는 $Lat./Long.=70.2^{\circ}N/199.5^{\circ}E,\;(K=18.1,\;A_{95}=9.6^{\circ})$ 이며 역자극의 경우는 $Lat./Long.=65.5^{\circ}S/251.3^{\circ}E,\;(K=7.1,\;A_{95}=20.7^{\circ})$이다. 이중 정자극의 위치는 한반도의 후기 백악기극의 위치와 통계적으로 동일한 것으로 나타나 함평분지 화산암

• Journal of Korea Multimedia Society
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• v.14 no.2
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• pp.153-170
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• 2011

OMTP (Open Mobile Terminal Platform) is a global forum made by telecommunications providers to promote user-oriented mobile services and data business. Devised by OMTP, BONDI is a browser-based application or a mobile web run-time platform to help widgets make good use of functions of mobile devices in a secure way. BONDI enables applications programmed with web standard technologies such as HTML, JavaScript, CSS, and AJAX to reach the internal functions of mobile devices. Since BONDI, which is not just a simple network application, can reach the internal resources of devices in standard ways, it enables the application and widgets to be developed regardless of tile OS or platform. Web browser-based widgets are vulnerable to the network environment, and their exeeution speed can be slowed as the operations of the widgets or applications become heavy. However, those web widgets will be continuously used thanks to the user-friendly simple interface and the faster speed in using web resources more than the native widgets inside the device. This study suggested a method to effectively operate and manage the resource of OMTP BONDI web widget and then provided an improved result based on a running performance evaluation experiment. The experiment was carried to improve the entire operating time by enhancing the module-loading speed. In this regard, only indispensable modules were allowed to be loaded while the BONDI widget was underway. For the purpose, the widget resource list, able to make the operating speed of the BONDI widget faster, was redefined while a widget cache was employed. In addition, the widget box, a management tool for removed widgets, was devised to store temporarily idle widgets.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.2
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• pp.171-181
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• 2020

As expanding marketing channels via social media, a small number of ordinary people have played a role in the information disseminator on social media. Therefore, this study aims to propose efficient social media marketing operation strategies by analyzing the influence relationship from various prospective on beauty channel social media marketing This study examined how beauty channel social media experience affects satisfaction and purchase intend. The components of social media experience were divided into entertainment, interaction, trendiness, usefulness for analysis. Social media experience was confirmed as a factor having significant effect on satisfaction and purchase intend. As a result, the social media experience had a significant effect on the satisfaction and purchase intend and the influence relationship of social media experience on each component was found to be entertainment, usefulness. Also, the expertise of beauty influencers had a significant influence on satisfaction and purchase intend. It is expected that the study results would be available as important data for beauty influencer-based marketing. This study attempted to search for a marketing stratege plan for efficient consumer management and derive and suggest practical implications.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.5
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• pp.13-18
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• 2016

In Long Term Evolution-Advanced (LTE-A), small cell enhancement(SCE) has been developed as a cost-effective way of supporting exponentially increasing demand of wireless data services and satisfying the user quality of service(QoS). However, there are many problems such as the transmission rate and transmission quality degradation due to the dense and irregular distribution of a large number of small cells. In this paper, we propose a clustering based interference management scheme in dense small cell network. We divide the small cells into different clusters according to the reference signal received power(RSRP) from user equipment(UE). Within a cluster, an almost blank subframe(ABS) is implemented to mitigate interference between the small cells. In addition, we apply the power control to reduce the interference between the clusters. Simulation results show that proposed scheme can improve Signal to Interference plus Noise Ratio(SINR), throughput, and spectral efficiency of small cell users. Eventually, proposed scheme can improve overall cell performance.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.48 no.11
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• pp.44-52
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• 2011

In this article, we present a QoS-guaranteed IP mobility management scheme of Internet service for fast moving vehicles with multiple wireless network interfaces. The idea of the proposed mechanism consists of two things. One is that new wireless connections are established to available wireless channels whenever the measured data rate at the vehicle equipped with mobile gateway drops below to the required data rate of the user requirement. The other is that parallel distribution packet tunnels between an access router and the mobile gateway are dynamically constructed using multiple wireless network interfaces in order to guarantee the required data rate during the mobile gateway's movement. By doing these methods, the required data rate of the mobile gateway can be preserved while eliminating the possible delay and packet loss during handover operation, thus resulting in the guaranteed QoS. The architecture of the IETF standard HMIPv6 has been extended to realize the proposed scheme, and detailed algorithms for the extension of HMIPv6 has been designed. Finally, simulation has been done for performance evaluation, and the simulation results show that the proposed mechanism demonstrates guaranteed QoS during the handover with regard to the handover delay, packet loss and throughput.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.45 no.4
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• pp.42-50
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• 2008

The real-time bio-signal monitoring system based on the ZigBee and SIP/RTP has proposed and implemented for telemedicine but that has some problems at the stabilities to transmit bio-signal from the sensors to the other sides. In this paper, we designed and implemented a real-time bio-signal monitoring system that is focused on the reliability and efficiency for transmitting bio-signal at real-time. We designed the system to have enhanced architecture and performance in the ubiquitous sensor network, SIP/RTP real-time transmission and management of the database. The Bluetooth network is combined with ZigBee network to distribute traffic of the ECG and the other bio-signal. The modified and multiplied RTP session is used to ensure real-time transmission of ECG, other bio-signals and speech information on the internet. The modified ECG compression method based on DWLT and MSVQ is used to reduce data rate for storing ECG to the database. Finally we implemented a system that has improved performance for transmitting bio-signal from the sensors to the monitoring console and database. This implemented system makes possible to make various applications to serve U-health care services.

• Journal of Korean Society of Archives and Records Management
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• v.24 no.2
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• pp.41-63
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• 2024

This study investigated research trends in digital curation indexed in a prominent domestic academic information database. A systematic literature review was conducted on 39 academic papers published from 2009 to 2023. The review examined indexing status according to publication year, venue, academic discipline, research area distribution, research affiliation and occupation, and research types. In addition, network centrality analysis and cohesive group analysis were performed on 69 author keywords. The findings revealed several key points. First, digital curation research peaked in 2015 and 2016 with 5 publications each year, followed by a slight decrease, and then consistently produced 4 or more publications annually since 2019. Second, among the 39 studies, 25 were conducted in interdisciplinary fields, including library and information science, while 11 were in the humanities, such as miscellaneous humanities. The most prominent research areas were theoretical and infrastructural aspects, information management and services, and institutional domains. Third, digital curation research was predominantly led by university-affiliated professors and researchers, with collaborative research more prevalent than solo research. Lastly, analysis of author keywords revealed that "digital curation," "institution," and "content" were the most influential central keywords within the overall network.

• Journal of the Korean Institute of Telematics and Electronics T
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• v.36T no.4
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• pp.123-132
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• 1999

A video conferencing system provides sharing the conference environment for geographically dispersed computer users who use the audio and video information. But the conventional video conferencing systems have some problems which are dependent on specific software and/or hardware and bound the certain platform and network environment. Furthermore the participants must know the information about other participants before joining the conference session and they have to use the same video conferencing system. This paper describes design and implementation of the video conferencing system on the WWW to solve the mentioned problems. The conference applications are transmitted from a WWW server and executed in the participants Web browsers. The participant can carry out conference services by using only the web browser. The WWW server takes charge of conferencing management including the information related to the participants and provides supported conference tools such as whiteboard, chatting and multimedia controls. Therefore the participants can easily join the conference sessions and perform conference working regardless of network connection situations. We used the Java to implement the seamless session connections and interaction between the conference participants which are the most important when implementing the video conferencing system on the WWW and used the ActiveX technology about the audio and video controls to make it easy the hardware control.