• Korea Multimedia Society
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• v.3 no.1
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• pp.30-37
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• 1999

• Digital Contents
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• no.5 s.156
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• pp.15-15
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• 2006

• Digital Contents
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• no.4 s.155
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• pp.25-29
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• 2006

• 한국디지털정책학회:학술대회논문집
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• 2006.12a
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• pp.387-395
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• 2006

유비쿼터스 컴퓨팅과 센서 네트워크에 대한 보안에 대한 적절한 정의가 필요하고 기존의 보안 개념인 인증, 기밀성, 무결성, 가용성과 유비쿼터스 컴퓨팅과 센서 네트워크 특성을 고려한 보안천이협약, 에너지 효율성 , 메타데이터의 기밀성 메시지와 개체에 대한 무결성, 서비스 거부 공격을 종합적으로 고려한 일반적인 유비쿼터스 컴퓨팅과 센서 네트워크 보안 환경에서 서비스를 보호하기위한 초경량 객체보호 기술에 대하여 검토하기로 한다.

• Journal of Digital Contents Society
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• v.3 no.2
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• pp.177-185
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• 2002

E-Business part is activated to base on contents for supports various constomer's desire. That is, techniqueses for efficient business transaction processing are studied and Web-Based component technology such as EJB is applied. Thus, this research designed Wokeflow for efficient E-Business contents supervision and processing that apply Web-Based EJB component technology. Accordingly, 1 used web server component model EJB for handling of various contents. Components of function module can improve system development efficiency of reusability, maintenance etc.. to process various contents.

• Proceedings of the IEEK Conference
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• 1999.06a
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• pp.530-533
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• 1999

During the last decade, high quality digital audio has essentially replaced analog audio. During this period, digital audio have applied many application areas of the info-industry. These applications have created a demand for high quality digital audio. In audio compression, the methods using human auditory nervous properties are used and introduced from psychoacoustical model utilized perceptual audio coding unable to code above the limitation of human perception. The discussion concentrates on architectures and applications of those techniques which utilize psychoacoustical models to exploit efficiently masking characteristics of the human receiver. In this paper, the designed MDCT/IMBCT as a standard of current MPEG is implemented onto FPGA.

• Journal of Digital Convergence
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• v.6 no.1
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• pp.35-41
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• 2008

The digital economic environment of next generation, which digital high-technology industry appears to be the economic center of the high degree of industry structure, is expected to be developed as the existing traditional industry is merged with high tech digital one. The developing system of contents policy for digital industry means the policy and vision, and strategic structure which get the mechanism of contents industry structure to work. The promotion organization of digital contents policy is requested to secure the framework of digital contents industry based on cluster, the infra framework of digital infra culture, the infra framework of industry-academic cooperation, and the overall digital contents based on motive policy for the vitality of the youth. The application of digital contents policy may lead to establish the framework of the growth for the every unit of industry with the cluster oriented system.

• 한국디지털정책학회:학술대회논문집
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• 2003.12a
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• pp.139-146
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• 2003

본 연구는 거시경제학의 기초이론인 케인즈 모형을 사용하여 지역의 대학이 지역 경제에서 차지하는 역할이 어느 정도가 되는지 계량적 분석과 설문지를 통한 실증분석을 하였다. 먼저 케인즈의 모형을 사용한 분석결과, D 대학 학생들은 1994 년$\sim$2002 년까지 연간 1 천억 이상 소득 창출효과를 보였다. 이것은 속초시 총소득의 $15%{\sim}30%$ 이상을 차지하는 상당한 비중이라 할 수 있다. 두 번째 분석으로는 D 대학 학생과 지역주민을 대상으로 한 설문 조사를 하였다. 특히 같은 도내 대학교인 K 대를 대상으로 조정 권 (2002)의 연구와 그 결과를 비교하였다. 분석결과 D 대학과 K 대는 전반적으로 유사한 결과를 보였지만, 지역주민들은 실제 계량적 분석결과와 달리 지역대학의 경제적 영향력을 과소 평가하는 것으로 나타났다. 이러한 지역주민 (지방자치단체) 의 지역대학에 대한 인식의 차이와 이해 부족은 지역대학의 잠재능력을 사장시킬 뿐만 아니라 결국 지역발전의 저해 요인으로 작용한다는 것을 시사하고 있다.

• Journal of Digital Contents Society
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• v.5 no.1
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• pp.41-47
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• 2004

The objective of this research is to add convenience to the intranet operating within an educational institution by setting up a messenger function to enable it faculties and teachers to making better use of the university database via Intranet. With this massenger services, users can view the information about the members in a group they belong to, and register as friends a group of members they selected from the work group they are in. This function will reduce the cumbersome chores of adding one individual as a fiend at a time. This research will enhance the Intranet within an educational institution by integrating new functions.

• Journal of Digital Contents Society
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• v.4 no.2
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• pp.203-210
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• 2003

In this paper we proposed a new MAC protocol to improve QoS(Quality of Service) for real-time traffic in wireless Ad Hoc networks. NMAC protocol have a contention period reservation scheme and a priority control scheme to provide fairness of nodes and QoS. Through simulation, the NMAC protocol compared with existing CSMA MAC protocols shows improvement in performance.