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태풍에 의한 벙어리뻐꾸기(Cuculus optatus)의 가을철 이동 실패 사례
김동원,김동원,최유성,이현정,손종성,백승운,정유진,허위행 한국조류학회II 2022 한국조류학회지 Vol.29 No.2
On May 29, 2021, an Oriental Cuckoo (Cuculus optatus) was caught in mist nets on Socheong Island (37°45′41.4″N, 124°43′46.8″E), Ongjin-Gun, Incheon, South Korea, and a transmitter was fitted on to it. On September 12, 2021, a typhoon heading north on the Philippine Sea affected the autumn migration of the cuckoo. On the 15th, under the influence of the strong winds, the cuckoo was forced to move north to the southern sea of Jeju Island; subsequently, the transmitter signal stopped, indicating that the cuckoo was killed at sea. This report provides the first direct example to suggest that extreme weather conditions such as typhoons can cause the failure of migration across the sea for land birds. 2021년 5월 29일, 인천 옹진군 소청도에서 벙어리뻐꾸기(Cuculus optatus) 1개체를 포획하여 위치추적발신기 부착 후 이동 경로를 추적하였다. 이 개체는 가을철 남하 이동 중 2021년 9월 12일 필리핀해에서 북상 중인 태풍의 영향을 받았으며, 강한 바람에 휩쓸려 15일에는 제주도 남쪽까지 북상한 후 추적이 중단되어 해상에서 죽은 것으로 추정되었다. 본 보고는 태풍과 같은 극심한 기상 상황이 바다를 횡단하여 이동하는 육상조류의 이동 실패에 영향을 미칠 수 있음을 보여주는 직접적인 사례를 최초로 제공한다.
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김동원,홍영관,류해일 공주대학교 과학교육연구소 2002 과학교육연구 Vol.33 No.-
Puljo chikchi shimch'e yojo˘l (佛祖直指心體要節) is the world's oldest existing book printed with metal type. This study was metal type printing and wooden type printing of the korea ink using light and scanning electron microscopes. The results were as follows: metal type printing of korean ink were discovered a spot and not a crack, wooden type printing of the korea ink does run on paper and observed a crack.
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金東源 全南大學校 人文科學硏究所 1974 용봉인문논총 Vol.3 No.-
The research of western history in Korea began largely in the 1950's. With the organization of the Korean Historical Association (KHA) in 1952, some historians began researches in western history and published their articles in The Korean Historical Review. The membership of the KHA covers the histories of Korea, Asia and Europe, and its members have performed their studies in their respective fields. Since the late 1950's, researchers of western history increased in number and they felt the necessity of having their own organization and journal to have their research articles published. The Korean Western Historical Association (KWHA) was established with Dr. EuiSul Choe, Hyun-Mo Keel, Bo-Hyung Lee, Suk-Hong Min, as charter members in 1958 and its organ, The Western Historical Review, began to be published in the same year. With the coming of the 1960's researchers of western history greatly increased and they did research with vigorous spirit of inquiry. Those who led the Association from the beginning and contributed much to the development of KWHA are Dr. Eui-Sul Choe, Dr. Byung-Woo Yang, Suk-Hong Min, Hyun-Mo Keel, Bo-Hyung Lee, Jong-Il Rah, and Mun-Hyung Choi. The present article is to survey the activities of western historical researches in the 1960's and to examine articles in this field, For the sake of convenience, this paper is divided as follows: Ⅰ. Ancient History of Europe Ⅱ. Medieval History of Europe Ⅲ. Modern and Contemporary History of Europe a. Age of Renaissance b. History of France c. History of Germany d. History of England e. History of America Ⅳ. Historical Theory Ⅴ. Western Historians' Comments on Current Korean Problems In Part Ⅰ, Greek history, mainly the political and socio-economic history of Athens, was inquired very deeply by Dr. Eui-Sul Choe, Dr. Byung-Woo Yang, and Jung-Su Kim. Compared with the vigorous research of Greek history, the history of Rome was scarcely investigated. In Part Ⅱ, researches were concentrated on the end of the Medieval age, especially on the Manorial decline. The formation of the age, problems of religion, and Feudalism were never studied. In Part Ⅲ, modern history was most vigorously studied, but contemporary history seemed to be weak, compared with its necessity of research. Most of the researchers were concentrated on this part. Hyun-Mo Keel, Suk-Hong Min, Bo-Hyung Lee, Jong-Il Rab, Mun-Hyung Choi and Dr. Ha-Sun Cha, were the most active scholars in this part. In Part Ⅳ, we find a special feature of research in the 1960's. Late in the 1960's, new theories of historical method were introduced and many historians took part in this. Dr. Byung-Woo Yang, and Dr. Ha-Sun Cha were the most active scholars in this part. They also contributed to Korean historical research with their studies in historical theories. In the last part, we find the maturity of western historical studies in Korea. Out of many writings, we can select the following: The first was to find the characteristics of the April 19 revolution, written by Suk-hong Min. The second was to point out "the intellectual chaos in early 1960's, written by Hyun-Mo Keel This meant historian's duty to his own society and his participation in the present. In conclusion, though the western historical research in Korea had economic, geographical, and linguistic handicaps the inquiring spirit of the western history was raised to the great extent, beginning in the late 1960's. The scholarly activities of the 1960's prepared a good promise for the development of western historical studies in Korea.
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김동원 한국인터넷방송통신학회 2012 한국인터넷방송통신학회 논문지 Vol.12 No.3
본 논문은 운행 중 차량에서 수집된 교통정보를 차량간 방송방식의 ad-hoc 무선 통신망을 통하여 수집하여 최소의 데이터로 가공하고, 이를 상대 차량에 제공하는 교통정보 제공 서비스 방식을 제안한다. 제안 방식은 특정 서버를 사용하지 않고 차량에 있는 네비게이션과 차량간 통신을 위한 무선통신장비만으로 서비스를 제공할 수 있다. 또한 별도의 교통정보 검지장치나 프로우브 카를 이용하지 않고도 광범위한 지역의 교통상황에 대한 정보를 분석할 수 있으며 이를 토대로 정확하고 빠른 교통상황 정보를 각 운전자에게 제공할 수 있다. 본 논문에서 VANET 기반 트래픽 정보 서비스를 제공할 경우 방송 전파 특성을 ns-3 시뮬레이션을 통해 분석하였다. We propose a traffic information service for which traffic data are collected over ad-hoc networks from neighbor vehicles, processed to minimize the data size, and eventually provided to its destination. The proposed scheme simply relies on the existing navigtion systems in vehicles and wireless communication devices for vehicle-to-vehicle communication, rather than on a separately established server. It allows collecting and analyzing traffic status of large areas without incorporating separated monitoring systems, e.g., probe cars and enables to provide accurate traffic information to drivers in timely manner. We also evaluate its performance by ns-3 simulation.
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