Radio astronomy, on its part, requires 'quiet zones' to be able to receive incoming cosmic signals unaffected by interference to enable astronomers and others learn about universe. The agenda item 1.16 of WRC-2000 contains a number of issues relevant for radio astronomy, but some of them are more important than others. The preparations for WRC-2000 have reached a close-to-final stages, with a number of proposals to this agenda item submitted to the ITU by many countries and groups of countries, like APT, CEPT and CITEL. There is no clear preference to anyone of these proposals since their differences are only minor. However, several points remain to be solved in the APT and CITEL. Fortunately, the preparation went very well, and consensus was reached on allocations above 71 GHz and three resolutions. The radio astronomy has obtained about 100 GHz of new spectrum allocations in bands above 71 GHz. In addition, a new resolution was approved by plenary meeting of WRC-2000. It deals with the consideration by a future WRC of sharing and compatibility issues between passive and active services in adjacent bands particularly with the space services (downlinks) into radio astronomy above 71 GHz. Therefore, in future, there should be a need for studies to be made to determine if and under what conditions sharing is possible, given that modifications were made on the basis of requirements known now and that little was known of requirements and implementation plans for active services in bands above 71 GHz.

We have analyzed the frequency sharing in the range of 71-275 GHz, which was adopted as a main topic of the WARC-2000 at the previous conference WARC-97. Though the technology of the active services has not been fully developed in this frequncy range, the heavy usage of this technology is expected in foreseeable future. To protect the passive services from spurious and out-of-band emissions of active services, realignment of the spectrum between 71 GHz and 275 GHz is strongly required. In addition, some effort should be made to allocate special bands for the radio astronomy service.

본 연구는 북한이탈청소년이 남한사회 적응과정에서 경험하는 인식의 변화를 살펴봄으로써, 이들의 경험에 대한 깊이 있는 이해를 가지고자 실시되었다. 이를 위해 남한에 1년 이상 거주 중인 북한이탈청소년 6명을 대상으로 심층면접을 실시하였다. 본 연구에서는 연구 참여자의 경험을 보다 심층적으로 이해하고자 현상학적 연구방법을 사용하였고, 그 중에서도 Giorgi가 제시한 4가지의 단계에 따라 자료를 분석하였다. 연구 참여자가 진술한 자료를 기초로 하여, 총 4개의 구성요소와 12개의 하위 구성요소가 도출되었다. 본 연구의 결과에 따라, 북한이탈청소년이 남한사회에서 경험하는 인식의 변화는 ‘자기 자신에 대한 인식 변화’, ‘미래에 대한 인식 변화’, ‘남한사회에 대한 인식 변화’, ‘북한과 북한이탈주민에 대한 인식 변화’로 나누어 볼 수 있다. 본 연구는 북한이탈청소년이 남한사회에 적응하는 과정에서 어떠한 인식의 변화를 경험하는지를 밝힘으로써, 현재 남한사회에 거주하고 있는 북한이탈청소년들을 이해하고 돕는 데에 도움을 줄 뿐만 아니라, 앞으로 더욱 증가할 북한이탈청소년들을 돕는 데에도 기여할 것으로 보인다.