• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
• /
• 제11B권3호
• /
• pp.59-63
• /
• 2001

This paper presents a new modeling of the two dimensional magnetic property in soft magnetic materials for the magnetic field computations. In this modeling an approximate treatment is introduced to expand the applicable exciting frequency range. The result shows that the new modeling presented here is very useful in simplicity of magnetic field analysis.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
• /
• 제4B권2호
• /
• pp.73-79
• /
• 2004

For the global microwave market, high RF power or deluxe model is applying for inverter gradually. In this paper, 120[V]/1200[W] high power inverter is proposed and verified by an optimized design of PFM type. Especially the steady power output control was fulfilling at ＋/－ 10[％] input voltage variation.

• 통상정보연구
• /
• 제3권2호
• /
• pp.29-47
• /
• 2001

본 논문은 인터넷 전자상거래를 기반으로 최근 활성화되고 있는 전자무역의 거래관행상의 영향 및 문제점을 실증분석하고 있다. 전자무역의 인터넷 전자상거래의 활용정도 및 장애요인 등을 분석하고 그에 따른 제반문제를 법제도적 측면을 비롯하여 정책적 측면 등을 중심으로 분석함으로서 전자무역의 새로운 거래관행의 확립과 법제도적 개선책의 모색을 통하여 전자무역거래의 활성화방안을 안전한 전자거래시스템의 확보 외에 관련 인력의 양성 및 교육훈련프로그램의 개발 등이 요구되고 있다.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 1988년도 전기.전자공학 학술대회 논문집
• /
• pp.640-643
• /
• 1988

This paper is concerned with distributed INGRES database system. The main motivation is to provide dynamic reconfiguration and global database consistency. Dynamic reconfiguration will provide proper initial environment to newly generated system. By use of transaction characteristic, database can be maintained in consistent state.

• 한국전자거래학회:학술대회논문집
• /
• 한국전자거래학회 2001년도 e-Biz World Conference
• /
• pp.571-597
• /
• 2001

■ EC: Electronic Commerce (전자상거래) · 기업, 정부기관과 같은 독립된 조직간 또는 조직과 개인간에 다양한 전자적 매체를 이용하여 상품이나 용역을 교환하는 것(산업자원부) · 일반적 상거래뿐만 아니라 대 고객 마케팅, 광고, 조달, 서비스 등까지를 포함하는 광범위한 개념 · 거래쌍방 간의 비지니스 관계를 증진시키기 위하여 정보기술을 교류/활용하는 것 ※ 전자거래(Electronic Transaction) : 정보통신기 술을 바탕으로 컴퓨터와 같은 정보처리 장치와 네트워크를 통하여 전자적인 방식으로 이루어지는 거래(전자거래기본법) * 전자상거래 → 전자거래(중략)

• 무역상무연구
• /
• 제15권
• /
• pp.211-238
• /
• 2001

This article discusses and analyses several issues regarding to the Electronic Signature and the Electronic Certification. The objects of the analyse are the each paragraphs of the Korean Electronic Signature Act of 1999 and that of the Korean Electronic Transaction Basic Act of 1999 in comparing to the paragraphs of the Electronic Signatures in Global and National Commerce Act' (E-Sign) of 2000, U.S.A. and that of the Draft UNCITRAL Model Law on Electronic Signature of 2000. The main issues discussed herein are the scope of the electronic signature, the definition of the electronic signature, permission of services to the non-authorized certification service providers, the effect of the electronic signature, the liability of the concerning parties of the electronic signature including liability of the certification service providers, that of the subscribers and that of the relying parties. This paper also discusses the problems of the possibility of issuing the electronic negotiable commercial papers, the validity of the electronic signatures done by electronic agents, the authority certificate, mutual certification of the foreign certification service providers, the permission of the electronic notary service, the problems of the consumer protection and the possibility of issuing electronic insurance policy, etc. The writer concludes by suggesting some measures that will activate the use of electronic signatures under the korean circumstances.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
• /
• 제5B권3호
• /
• pp.229-232
• /
• 2005

Finite element method (FEM) is a very powerful tool for the calculation of magnetic field of electromagnetic devices. MATLAB/Simulink is also well known as a very useful tool for control systems. This paper proposes a very promising method, where the FEM is coupled with MATLAB. We apply this method to analyze a permanent magnet (PM) motor drive system, and compare with results using MATLAB only.

• 무역상무연구
• /
• 제13권
• /
• pp.215-233
• /
• 2000

We know there are tremendous increasing of electronic commerce transaction but don't have efficient method to cover the risk of it. Even though the risk why we make a deal by electronic commerce. The reason, I think, is its conveniences of little cost and by no means of papers or tele-communications. When the valid contracts are achieved you may have some problems because of different legal systems of the world. If the contractual quarrels break it is very difficult to solve it. So it is important to choose the governing law to avoid troubles when you make the contract on internet electronic commerce. The purpose of this study is to review the general principles of contract of internet electronic commerce.

• 인터넷정보학회논문지
• /
• 제6권2호
• /
• pp.153-163
• /
• 2005

본 논문에서는 통합적으로 상품 정보를 처리할 수 있는 전자 카탈로그 문서 구조를 정의하고 다양한 카탈로그 문서 포맷 및 구조를 지원하기 위하여 전자 카탈로그 표준 포맷을 XML(eXtensible Morkup Language)로 제안하였다. 또한, 거래에 참여하는 사용자가 정의된 전자 카탈로그 문서를 전자 상거래에 이용할 수 있도록 통합형 전자 카탈로그 시스템을 설계 및 구현하였다. 본 시스템은 웹 서비스와의 연동을 통하여 웹 서비스가 가지고 있는 비즈니스 통합 및 상호 운용성 등 다양한 장점과 전자 카탈로그 문서에서 얻을 수 없는 유용한 정보들을 웹 서비스를 통하여 얻을 수 있도록 하였다.

• 통상정보연구
• /
• 제6권1호
• /
• pp.129-153
• /
• 2004

In order to succeed in e-Trade Project in Korea, the related parties endeavor to introduce the e-title registry model such as Bolero model(Title Registry Model) and TEDI model (Repository Service Provider Model). Prior to mentioning the Model of e-Title Registry, desirable Global e-Trade Platform is the platform connecting Global e-Trade Platforms in each country and Bolero's Core Messaging Platform and e-Title Registry must be established in each country. Each e-Title Registry must be connected with another registry. Like Korea, Recognized Electronic Document Repository must be established as proxy for preserving, attesting, carrying out sending and receiving electronic document to prevent from disputes between parties and to carry out notarizing electronic documents and related transaction. The purpose of this paper is to promote the introduction of e-Title Registry in the e-Trade and to streamline the procedures of the electronic bill of lading.