• The Bulletin of The Korean Astronomical Society
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• v.28 no.2
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• pp.80-80
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• 2003

• TTA Journal
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• s.176
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• pp.91-93
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• 2018

• TTA Journal
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• s.104
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• pp.142-146
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• 2006

• Information and Communications Magazine
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• v.17 no.7
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• pp.36-46
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• 2000

• The Bulletin of The Korean Astronomical Society
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• v.25 no.1
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• pp.24-24
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• 2000

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.1
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• pp.34-40
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• 2001

The necessary of research is proposed about sharing between networks of the fixed-satellite service using non-geostationary satellites and other networks of the fixed-satellite service, interference criteria and calculation methods for the fixed-satellite service because WRC-2000 make a decision that the frequency bands l1/14GHz and 20/30GHz are available to system in the fixed-satellite service employing satellite in both geostationary and non-geostationary orbits. In the paper, four methodologies attempting to derive continuous curves of korea satellite network EPFD(equivalent power flux density) are used.

• Electronics and Telecommunications Trends
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• v.15 no.5 s.65
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• pp.49-59
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• 2000

WRC-2000 회의를 계기로 성층권 통신시스템용 주파수가 새롭게 분배됨에 따라 정보통신 인프라가 취약한 후진국 및 개도국뿐만 아니라 여러 선진국들을 중심으로 성층권 비행선을 이용한 통신 및 무선응용 서비스의 활용에 대해서 관심이 점점 높아지고 있다. 본 논문에서는 성층권 통신시스템의 개요를 소개하고 WRC-2000 회의의 HAPS(High Altitude Platform Station) 관련 주요 의제 및 진행 경과와 결과를 중심으로 국제 표준화 동향을 알아보고자 한다. 그리고 현재 미국, 일본 및 유럽 등 몇몇 기술 선진국을 중심으로 진행되고 있는 성층권 통신시스템 개발과 관련하여 기술 개발 동향에 대해서 살펴보고 성층권 통신시스템(HAPS)의 기대효과 및 향후 전망에 대해서 논의하고자 한다.

• Journal of the East Asian Society of Dietary Life
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• v.21 no.2
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• pp.250-256
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• 2011

The findings of this study into the quality of fresh pasta noodles containing different amounts of the lyophilized citrus peel powder are as follows. The higher the amount of the citrus peel powder in the pasta, the higher was its WRC. The Hunter's values, whether L, a, and b all increased in both cooked and raw noodles. The higher the amount of the citrus peel powder, the less the level of tensions and the lower the setback values. These results suggest that the citrus peel powder might have a controlling effect on retrogradation. As for the characteristics of cooked pasta noodles, the weight decreased; the volume increased; and the moisture absorptive power also increased. The tasters' preferences were in the following order: 3%>0%>5%>7%>1%. In other words, a citrus peel powder content of 3~5% appears to be most appropriate.

• Information and Communications Magazine
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• v.25 no.2
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• pp.73-82
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• 2008

본 고에서는 지난 2007년 10월 22일${\sim}$11월 17일, 스위스 제네바에서 개최되었던 세계 전파통신회의(World Radiocommunication Conference (WRC-07) 결과 중 이동통신, 해양 및 항공 통신 분야의 주요 결과와 그 의미 등을 살펴보고자 하며, 나아가 국내 산업에 미치는 영향을 분석해보고자 한다. 이를 토대로 앞으로 대응 전략을 이해하며, 주요 결과의 국내 영향을 고려한 향후 대응 전략을 분석함으로써 차기 세계전파총회 대비 전략 및 국내 준비 사항 등을 제시해보고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.66-69
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• 2011

Many international organizations build a global communications network called the GMDSS by close cooperation, and ITU-R, IMO and IEC apply it for the modernization of the international marine radiocommunication system, but a modernization study of the GMDSS to reflect such a technique by the rapidly development of the wireless communication technology recently progresses. Such effort was submitted for adoption with WRC-12 held in 2012. This paper analyzed standardization trends for marine radiocommunication modernization discussed around ITU-R recently and analyzed research activities for frequency allocation for new technical introduction and described it.