We have analyzed 210 data of daily sunspot observations made during the period of January 3 to December 31 in 2000 and presented the daily relative sunspot numbers. For this work we estimated the conversion factors to derive the relative sunspot numbers: k=0.72 for the 20 cm refractor and k=0.56 for Solar Flare Telescope in KAO. During the year of 2000, our annual average of relative sunspot numbers is found to be 99.4. This number is obtained from the averaged daily number of 8.9 spot groups, in which there are about 62.5 distinct spots observed. According to the appearance of 423 spot groups, our analysis shows that the mean life time of the spot groups is about 4 day and 12.0 hours.

This study was conducted to investigate the effect of renovation of white clover dominated pasture. It was arranged in a randomized block design with two mixture types: 5-species mixtures(5-SM); orchardgrass 40% + tall fescue 20% + perennial ryegrass 10%

Beginning from July. 2000, the product liability of Korea is designed for reduction of customer loss by defective products. Therefore, most of company are supposed to be ready for taking care of safety and quality of products. ISO9001：2000 quality management system reform to emphasize continual improvement of the process with customer satisfaction. First of all, this paper start with introduction motive of the product liability and examine distinctive mark of the ISO9001：2000 quality management system. We consider the correlation between ISO9001：2000 quality management system and product liability and would like to propose product liability prevention by ISO9001：2000 quality management system with classification a defect style of product, the management guide and the law case.

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.

2002년 7월부터 시행될 한국의 제조물책임법은 제조물의 결함으로 인한 소비자의 피해구제가 목적으로 이에 따라 기업으로서는 제품의 품질과 안전에 대한 부담은 더욱 증가하게 되었다. ISO9001:2000 품질경영시스템의 요구사항은 고객만족 지향에 대한 프로세스의 지속적인 개선을 강조하여 개정되었고, 고객의 요구는 제품의 안전을 더욱 중요시하는 추세로서 이러한 대응방안을 ISO9001:2000 품질경영시스템의 요구사항에서 고찰·제시하고자 한다. ISO9001:2000 품질경영시스템은 경영에 대한 프로세스 접근방식의 도입으로 프로세스의 입력사항으로 고객이 중요한 역할을 하며, 고객의 요구사항이 충족되었는지를 검토하며, 지속적인 고객만족을 위해 프로세스를 관리한다. 본 연구에서는 먼저 제조물책임법의 도입배경과 Is09001:2000 품질경영시스템의 특징을 고찰한다. 그리고, ISO9001:2000 품질경영시스템과 PL과의 관련성을 제고하여 제조물의 결함 유형별, 경영관리지침 항목, 소송상의 항목으로 분류하여 제조물책임 대응방안으로 ISO 9001:2000 품질경영시스템을 제시하고자 한다.