• Environmental Analysis Health and Toxicology
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• v.6 no.1_2
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• pp.59-70
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• 1991

This study was performed to investigate the effect of olive oil diet on the immune response in ICR male mice. Experimental diets of 4 groups were fed ad libitum to the ICR male mice for 27 days. The results of this study were summarized as followings: 1. 10% Olive oil diet group as compared with the control diet group significantly decreased liver weight rate but significantly increased hemagglutination titer (HA), Arthus reaction, delayed type reaction (DTH), rosette forming cell (RFC), and phagocyte activity. 2. 20% Olive oil hypersensitivity diet group as compared with the control diet group significantly increased body weight gain, liver weight rate, and HA but significantly decreased Arthus reaction, DTH, RFC, phagocyte activity, and peripheral circulating white blood cell (WBC). 3. 30% Olive oil diet group as compared with the control diet group significantly increased liver weight rate but significantly decreased body weight gain, Arthus reaction, plaque forming cell (PFC), DTH, RFC, phagocyte activity, and WBC. The results showed that the increase of olive oil doses significantly decreased humoral and cellular immune responses, phagocyte activity, and WBC.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.30 no.11 s.254
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• pp.1117-1122
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• 2006

The PEM type regenerative fuel cell(RFC) for the ground simulator of the regeneration electric power system has been designed, manufactured, and tested. In this paper, the designing and manufacturing procedures of the RFC were presented. Also, the performance test results were showed briefly. The RFC consists of PEM type stack, humidifier, pressure and flow control valve, storage tanks, pump and controller. The performance tests were carried out with stack and system performance tests. The performance targets are more than 50% stack efficiency, 1.5kW stack power, less 400W parasitic power in design condition. Most of the performances required are satisfied.

• Journal of Information Technology Services
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• v.12 no.2
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• pp.321-334
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• 2013

Recently EAI WG of IETF has published standards for multilingual support in the local part of the e-mail address. Between 2009 and 2010, EAI WG published RFC documents, called the EAI standard, extension to the existing mail-related RFC documents, and EAI has been implemented and tested. In the course of reviewing the results, this yielded a proposal to modify the EAI standard. As a result, EAI WG has published modified RFC documents, called the EAI bis standard. SMTPUTF8 mail server described in this paper has been implemented according to the EAI bis standard. In addition, it has the ability to support two different standards to support the multilingual domain part of the e-mail address, IDNA and EAI bis. Futhermore, SMTPUTF8 mail server can encode in punycode the local part of the e-mail address. Finally, interoperability testing shows that SMTPUTF8 mail server is well-implemented according to the EAI bis standard.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.41 no.5
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• pp.1-8
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• 2004

ISBN is ISO standard numbering system for the off-line books. In 2001, IETF RFC 3187 described the conceptual specification of ISBN as URN. This paper focus on the system architecture, DB content and resolution system of the ISBN supporting system based on the standard system called DDDS which is the standard system described in IETF for URN resolution.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.1141-1144
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• 2004

Diameter Base 프로토콜은 Diameter 노드라면 반드시 지원해야 하는 기본 프로토콜이다. 현재 Diameter Base 프로토콜은 IETF RFC 3588로 표준화되었으나 여전히 논의되어야 할 문제점이 존재하며 IETF WG Mailing List에서 이에 관한 논의가 진행되고 있다. 경로 권한 검증 문제는 이미 IETF WG Mailing List에서 일부 언급되었으나 충분한 논의가 이루어지지 못한 상태이다. 따라서 RFC 3588 내에서 정의한 내용들에 서로 모순되고 비효율적인 기능들이 존재한다. 본 논문에서는 RFC에 새롭게 추가된 기능인 경로 권한 검증 기능의 문제점에 대해 분석하여 표준에 벗어나지 않으며 보다 효율적으로 개선된 방안을 제시한다.

• Journal of the Korean Data and Information Science Society
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• v.14 no.2
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• pp.217-221
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• 2003

Modeling the reliability of distributed systems requires a good understanding the reliability of the components. For thousands of web users, competitiveness in web services means a successful presence on the web. Failure rates for the presence of a web site are considered on client sides errors using RFC2068. Data were collected from some host via the internet.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.10a
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• pp.880-883
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• 2003

In case user uses e-mail, SIP, internet FAX etc., the user has many addresses as many as services. ENUM is attracting interests because ENUM can provide URI addresses with a telephone number. This paper describes design of SIP function for supporting ENUM services.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.346-348
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• 2001

최근에 등장한 Gigabit Ethernet은 LAN 에서 MAN 가지 영역을 확장하고 있다. 그리고, 품질 보장 서비스를 위해 RFC 2205에 정의된 RSVP(Resource Reservation Protocol)는 확장성 등의 내부적인 문제로 사용이 적다. 좀더 나은 품질 보장 서비스를 하기 위한 노력 중 하나로 RFC2814 에서는 SBM(Subnet Bandwidth Manager) 이라 하여 RSVP를 IEEE 802형태의 LAN에서 구현하자고 노력하고 있다. 이에 본 논문에서는 기존의 RSVP 의 문제점 중 하나인 killer problem 을 해결하기 위만 Two-pass RSVP 개념을 SBM에서 적용할 방안을 제시하고자 한다.

• Review of KIISC
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• v.11 no.3
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• pp.57-64
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• 2001

최근 공개키 암호 시스템의 사용이 급증하면서 공개키의 무결성과 신뢰성 문제를 해결하고자 등장한 인증서기반의 공개키 기반 구조(PKI)와 관련된 다양한 응용프로토콜에 관한 연구가 활발히 진행되고 있다. 본 고에서는 PKI 응용프로토콜 중에서 PKI 개체들간의 인증서관련 메시지 교환 표준인 인증서 관리 프로토콜(Certificate Management Protocols) 을 분석하였다. CMP에 관련된 문서는 IETF에서 표준화한 RFC2510과 2001년 2월에 제안된 드래프트가 있는데, 본 고에 서는 RFC2510을 중점적으로 분석한 후, 드래프트에서 새로 제안된 부분을 추가하여 두 문서를 비교 분석하였다.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.180-180
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• 2004