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서영수,손효석,전형식,정희택,Seo, Young-Soo,Son, Hyo-Sok,Chun, Hyong-Sik,Chung, Hee-Taeg 한국유체기계학회 1999 한국유체기계학회 논문집 Vol.2 No.2
The pump safety related to the functions in nuclear power plants must be designed to meet load conditions considering seismic requirements. In order to satisfy both structural integrity and operability of these pumps, the initial step in the seismic qualification is to establish the resonant frequencies of the structure. Applications we made to the design of the vertical and horizontal type pump. Computational results are analyzed with respect to the dynamic characteristics and are compared to the expected design requirements.
서영수(Young-Soo Seo),하현욱(Hyun-Uk Ha),이장명(Jang-Myung Lee) 한국지능시스템학회 2010 한국지능시스템학회 학술발표 논문집 Vol.20 No.1
본 논문은 배전선로 상에서 발생하는 고장 중 부분 방전(아크) 때문에 일정 가청 주파수대에서 발생하는 노이즈를 마이크로폰 어레이(Microphone Array)를 통하여 고장부의 거리 및 방향을 판단하는 알고리즘을 제안한다. 고장 중 부분 방전(아크)로 발생되는 노이즈를 제거하는 일련의 신호처리 과정을 통해 노이즈까지의 거리 및 방향을 측정하고, 이를 아날로그 및 디지털로 나타내어 그 결과를 감시한다. 이 결과를 바탕으로 불량 부분의 거리와 방향을 추정하고, 각 크기별로 상태를 판단한다.
서영수(Young-Soo Seo),정우신(Woo-Sin Jung),나종만(Jongman Ra),박근(Keun Park) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
본 연구에서는 초음파 진동을 이용한 고분자 필름 표면에 마이크로 패턴을 성형 공정에 관한 연구를 진행하였다. 상기 공정에서 성형 조건이 따른 마이크로 패턴의 전사성에 대해 미치는 영향을 고찰하기 위해 성형하중 및 성형깊이 를 변화시켜가며 고분자 필름상에 전사되는 패턴의 높이 비교를 수행하였고, 이를 토대로 성형하중과 성형깊이 변화가 패턴의 성형특성에 미치는 영향을 파악하였다. 실험 결과 성형하중과 성형깊이가 증가할수록 패턴의 전사성이 향상됨을 확인할 수 있었다.
徐榮洙(Seo, Young-soo) 백산학회 2003 白山學報 Vol.- No.65
This paper is written for the purpose of giving a lecture on the ethnic identity of Korea to the northern academic society. Ethnic identity means prototype of nation and substance of national culture. So in this paper I intend to study the Korean identity through the introduction of studies of south and north scholars on Old Chosŏn(古朝鮮) and formation of the Koreans. Academic issues in the studies on the history of Old Chosŏn have various fields: apperarance period of state, location of the capital region, extent of territory, etc. On the period of the foundation of Old Chosŏn by Tan'gun(檀君), there are several viewpoints . Some scholars have the opinion of the foundation of BC 3000, and other scholars insist on B.C. 4~5th. But these days most scholars have the similar view of around B.C 1000 that is the developing period of bronze culture in Liadong(遼東) area. On the location of the capital region, there are three point of view : Taedong river, Liadong and migration from Liadong to Taedong river. There are two different claims on the formation of Korean people; one is that Korean people is self-generated in the korean peninsula and the other is the migration from external area. The root of Korean people is from Han-Yemaek(韓濊貊) or from Tongi(東夷). Though there are several different viewpoints, the formation of Korean people and the substance of national culture is established at the same time as the foundation of the first state Old Chosŏn. Therefore south and north scholars should co-study on the ancient Korean culture such as dolman and Tangun, our founder of Korea beyond ideology. That is the shortcut to overcome two separate Korean systems and restore unique Korean community.
서영수(Seo, Young-Soo) 백산학회 2006 白山學報 Vol.- No.76
Old Chosun, originating from the primary state called Asadal 阿斯達, was developed Old Chosun Dynasty competed with Empire Chin and Han. It is a substantial reality. The research on the history of Old Chosun has focused of the issue about where the center was, how large the territory was, and when the state was founded. In this research, on the basis of archaeological researches, I have collected and systematized the materials scattered in old books in Korea and China about Old Chosun, and then I will investigate the transition of Old Chosun’s territory. I have examined the articles related to Old Chosun in Tankoonsinhwa檀君神話 and Shiji, considering recent archaeological researches and I have realized that the first momentum is the close relation to the emergence of Bronze culture in North-east Asia and the second is that the refugees of Shang and Chu dynasty in China invaded into Old Chosun society and had great influence on it. On the basis of development in material culture, such as Mandolin shaped bronze dagger, Old Chosun had developed known as Chosun in China dynasty in B.C7 century and through trades with Je, and Yan, in China, it was developed into Kingdom in Liaodung in B.C 4C. When iron instrument was spread in North-east Asia in the middle period of Old Chosun Kingdom, it competed with the Empire of China, such as Yan燕, Chin秦, Han漢etc. but Old Chosun lost the war against Yan, so it gave in the territory from Chensan, 千山, later called Manbunhan, 滿番汗 to the western area along 大凌河 and retreated toward south. It transferred its center to the area near Daedong river大同江. In the period of Chin dynasty, Old Chosun lost the Peninsular Liaodung. but in the early period of Han dynasty reconquered 遼東外徼 and extend its territory to the western area along 小遼水. Thereafter Old Chosun kingdom competed with Empire Han.