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최영복,정숙희 조선대학교 기초과학연구소 1998 自然科學硏究 Vol.21 No.1
본 조사는 1994년 10월부터 1995년 9월까지 광주 광역시내에 위치한 무등산 일대의 사계 조류에 대하여 그들의 서식처로 활용하는 식물군락의 종류조성을 연계한 동쪽사면, 서북사면, 서남사면, 3개지역으로 구분 조사한 것이다. 관찰 결과 총 11목 29과 4아과 65종이었다. 구역별 3개 지역에 대한 결과는 다음과 같다. 1. 제Ⅰ지역(산장-고막재-신선대-규봉암) - 7목 18과 4아과 34종, 우점조림과 조류는 낙엽 혼합림 서식처에서는 힌배지바귀와 억새, 조릿대가 무성한 서식처에서는 붉은머리 오목눈이 었다. 2. 제Ⅱ지역(제 4수원지-산장-바람재-토끼봉-중심사) - 9목 22과 4아과 45종, 상록활엽수가 주 식생이었으며 4수원지에서 월동하는 오리류가 50% 이상의 우점 조류로 나타났다. 3. 제Ⅲ지역(토끼봉-중봉-약사암-중심사-지산유원지) - 9목 21과 36종, 우점식생은 초생지로 일반적인 텃새가 주를 이루었다. 계절별 조류분포는 텃새가 41.5%(총 27종)로 가장 높고 여름철새가 35.45(총 23종), 통과새가 13.4%(총 9종), 겨울철새가 9.2%(총 6종)으로 관찰되었으며 우점종으로는 겨울철새인 오리류(27%), 어치(17%), 붉은머리오목눈이(10%), 박새(4%), 곤줄박이(4%), 힌배찌바귀(3%)순 이었다(참새는 제외). An analysis of the regional community structure of the four seasons birds on Mt. Moodung was observed over one year, from October. 1994 to September 1995. Observation was complished in three sides by their habitat according to its vagetation kinds ; East, Northwest, and Southwest side. The total results are 11 orders, 29 familys, 4 subfamilys, amd 65 species. The results of three areas are as follows ; Ⅰ. East side of Moodung mountain(Sanjang-Komacje-Shinseondae-Gubongam) - 7 orders, 18 familys, 4 subfamilys, and 34 species. Ⅱ. Northwest side of it(4Reservour-Sanjang-Baramjae-Tokibong-JeungshimTemple) - 9 orders, 22 familys, 4 subfamilys, and 45 species. Ⅲ. Southwest side of it(Tokibong-Chungbong-Yangsaam-JeungshimTemple-Jisan resort) - 79 orders, 21 familys, 4 subfamilys, and 36 species. Ⅳ. Seasonal distributions of birds are Resident bird(41.5% and 27 species), Summer visitor (35.4% and 23 species), Passage migrant(13.4% and 9 species), Winter visitor(9.2% and 6species). Ⅴ. Dominant species of the winter visitor are Mallard(Anas platyrhynchos) 16%, Spot -billed(Anas pocilorhyncha zonorhycha) 7%, Teal(Anas crecca) 6%), of the Resident bird, Jay(Garrulus glandarius) 17%, Vinous-throated parrotbill(Paradoxornis webbiana) 10%, Great Tit(Parus major) 5%, Varied Tit(Parus varius) 4% in this area. The percentages of species diversity (for the total of all species), evenness and dominance were calculated to show indices for related abundance of species at the certain side of forest community.
최영복,김경연,고성택,김경식 濟州大學校 産業技術硏究所 1997 산업기술연구소논문집 Vol.8 No.2
The B-ISDN(Broadband-Integrated Service Digital Network) transports various multimedia information effectively. So optical switching networks which consist of optical transmission links and photonic switching systems are noticeable as a way of a large capacity communication. In this paper. we propose optical packet switching networks which will be used as the backbone network of national high speed communication networks which are operated a way of ATM (Asynchronous Transfer Mode). The B-ISDN transport networks are composed of two-layered networks such as regional networks and a backbone network. The regional network is a n average ATM transport network. The optical backbone network gathers fixed length of several AThI cells which come from regional networks. attaches an optical header. and completes an optical packet, And then the network switches and transports with high speed. That is. the backbone network is a transparent optical packet network. The passing speed of signal in the photonic switch is rapid, but the switching speed is limited and the processing speed of the switching controller which consists of electronic circuit is limited. So the optical packet which consists of multi-ATM cells is able to overcome it in the optical backbone network. The performance evaluation by the computer simulation shows us the efficiency of the proposed way of optical packet switching.
崔榮福 조선대학교 농업연구소 1980 農業硏究 Vol.1980 No.1
1. 532 specimens of butterflies were collected at Mt. Keum-Sung located in Naju-Gun for three months from June to August, 1979. In the course of identification of the 532 specimens they were classified into 14 species. 2. The results of the colection are as follows: Family Papilionidae 4 species 〃 Pieridae 9 〃 〃 Satyridae 8 〃 〃 Nymphalidae 14 〃 〃 Lycaenidae 4 〃 〃 Hesperidae 4 〃 〃 Dana idae 1 〃 Total 44 species 3. The specific ratio of the Paleartic Region and the Oriental Region is 2.66:1, which shows that the Oriental ratio is much higher than the average ratio of whole Korea, 5.5 : 1. It is because Mt. Keum-sung is located in the southern part of the peninsula and the collection was made in June to August.
Drosophila melanogaster의 走光性 變化에 關한 硏究
崔榮福 조선대학교 기초과학연구소 1978 自然科學硏究 Vol.1 No.1
1. 集團飼育한 D. melanogaster 中에서 F_1-F_2까지 最走光性을 나타내는 파리는 13%였으며 最避光性을 나타내는 파리는 22%였다. 2. F_26-F_30에서는 最走光性을 나타내는 파리는 23%로서 10%가 增加하였으며 最避光性을 나타내는 파리는 30%로서 8% 增加하였다. 3. Most photo-positive의 性質을 가진 D. melanogaster를 constant dark에서 飼育하고 most photo-negative의 性質을 가진 D. melanogaster를 Constant light에서 飼育한 結果 環境에 현저하게 適應하는 것을 알 수 있다. 4. Most photo-negative의 特成을 가진 D. melanogaster를 Larva stage에만 밝은 곳에서 飼育하였을 때에는 photo-positive 파리가 현저하게 많아졌으며 pupa stage에서는 前者보다 약간 감소하였다. This paper is an attempt to discuss the phototaxis change of Drosophila melanogaster. When the most photo-positive Drosophila melanogaster was fed in the constant dark and the most photo-negative one was fed in the constant light, they were observed to be adapted to environments. When the most photo-negative Drosophila melanogaster in the period of larva stage was fed in light, the number of the photo-positive flies was increased, but the number of the flies of pupa stage was less than that of the flies in larva stage.