대기오염 피해지역의 산벚나무 임분내 내성 및 감수성 개체의 유전적 차이

이석우,우수영,구영본,이성규 ( Seok Woo Lee,Su Young Woo,Yeong Bon Koo,Soung Kyu Lee ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.1

The estimates of genetic diversity based on 7 polymorphic loci coding for 6 isozymes were compared between the tolerant and the sensitive trees in an air polluted Prunus sargentii stand located on Ulsan industrial area. Although we could not observe statistically significant differences in allele and genotype frequencies between the two groups except the gene locus Got-2, the unique alleles and genotypes were observed in the tolerant group. All the genetic parameters such as genetic multiplicity, genetic diversity, and heterozygosity revealed that a greater amount of genetic variations existed in the tolerant group.

${\alpha}$-(n-Butyl)-N-Phenylnitrone유도체의 가수분해 반응메카니즘과 반응속도론적 연구

이석우,곽천근,이광일,이기창,Lee Seok-Woo,Chun-Geun Kwak,Kwang-Il Lee,Lee Ki-Chang 대한화학회 1992 대한화학회지 Vol.36 No.4

${\alpha}$-(n-butyl)-N-phenylnitrone 유도체들의 가수분해 반응속도상수를 $25^{\circ}C$의 수용액에서 자외선 분광광도법으로 측정하여 넓은 pH 범위에서 잘 맞는 반응속도식을 구하였다. 반응속도식, 가수분해 생성물, 일반염기(general base) 및 치환기 효과 등의 결과로부터 가수분해 반응메카니즘을 제안하였다. 즉, pH 4.5이하에서의 가수분해는 양성자가 첨가된 nitrone의 ${\alpha}$-탄소에 물분자의 공격에 의해 진행되며, pH 10.0 이상에서는 ${\alpha}$-탄소에 히드록시 이온의 직접 첨가에 의하여 가수분해가 진행된다. pH 4.5∼10.0에서는 nitrone에 물분자가 첨가되는 것이 속도결정단계임을 알았다. The rate constants of hydrolysis of ${\alpha}$-(n-butyl)-N-phenylnitrone and its derivatives have been determined by UV spectrophotometry at 25$^{\circ}C$ and a rate equation which can be applied over a wide pH range was obtained. On the basis of rate equations derived and judging from the hydrolysis products obtained and from general base and substituent effects, plausible mechanisms of hydrolysis in various pH range have been proposed. Below pH 4.5, the hydrolysis was initiated by the protonation and followed by the addition of water to ${\alpha}$-carbon. Above pH 10.0, the hydrolysis was proceeded by the addition of hydroxide ion to ${\alpha}$-carbon. In the range of pH4.5∼10.0, the addition of water to nitrone is rate controlling step.

자원 가용성 기반 다중 경매 모델을 이용한 서비스 예약형 클라우드 자원 거래 시스템

이석우,김태영,이종식,Lee, Seok Woo,Kim, Tae Young,Lee, Jong Sik 한국시뮬레이션학회 2014 한국시뮬레이션학회 논문지 Vol.23 No.1

A cloud computing is one of a parallel and distributed computing. The cloud computing provides some service for user with virtual resources. However, a user's service request does not show a time pattern. As a result, each resource also shows a different availability at the same time. This difference affects a quality of service (QoS) and a resource selection for users. Therefore, we propose the resource availability-based multi auction model for cloud service reservation and resource brokering system. The proposed system is to select the proper resource provider based on the users' request. The proposal adopts the multi phase of the auction to transact resources. The system evaluates the available factor of each resource on the auction phase, and finally reserves the service on the adaptive queue. The proposed model shows the better performance than other existing method. 클라우드 컴퓨팅은 분산 병렬 컴퓨팅의 일종으로 IT 자원을 가상화 하고 이를 사용자에게 제공한다. 그러나 사용자의 서비스 요청은 시간적 규칙성이 없으며, 이런 이유로 각 자원들은 가용성의 차이를 갖는다. 가용성의 차이는 클라우드 서비스 이용자의 QoS만족도 및 서비스 제공자 선택에 영향을 주게 된다. 본 논문에서는 클라우드 환경에서의 서비스 이용자의 요구에 따라 가상화된 IT자원 제공자의 효율적 선정을 위한 자원 가용성 기반 다중 경매 모델을 이용한 서비스 예약형 클라우드 자원거래 시스템을 제안한다. 제안한 시스템에서는 서비스 이용자의 서비스 요청 발생 시 두 번의 경매 모델을 사용하는 다중경매모델이며, 다중 경매 과정 중 단일 경매 단계에서 자원 가용성 평가 알고리즘 및 가변 큐를 이용한 서비스 예약방식을 적용하여 서비스 제공자의 자원 가용성을 평가하여 최적의 서비스 제공 자원을 찾는다. 제안모델은 QoS만족도 부분에서 앞서 작용한 자원 가용성 평가 알고리즘으로 인해 높은 성능을 보여주며, 작업 처리 시간활용도 면에서 QoS를 모두 고려한 상태로 안정적으로 더 많은 작업을 처리 할 수 있음을 입증하였다.

특별강연 - 석유화학 , 윤활유분과 / 식품공업분과 / 유지 , 계면활성제분과 / 정밀화학분과 : 1,1,1- TCE 및 CFC -113 대체물질의 산업별 최적 대체 세정공정

이석우,박종희,김조웅 ( Seok Woo Lee,Jong Heui Park,Jo Woong Kim ) 한국공업화학회 1997 한국공업화학회 연구논문 초록집 Vol.1994 No.1

독도분쟁과 샌프란시스코 평화조약의 해석에 관한 소고

이석우(Seok Woo Lee) 서울국제법연구원 2002 서울국제법연구 Vol.9 No.1

일본의 후쿠시마 오염수 해양방출의 국제법 위반소지 및 대응방안

이석우(Lee Seok-woo) 한국외교협회 2021 계간 외교 Vol.- No.138

초음파 진동을 이용한 취성재료의 가공기술에 관한 연구

이석우(Lee Seok-Woo),최헌종,이봉구(Yi Bong-Gu) 한국소성가공학회 2002 금형가공 심포지엄 Vol.2002 No.2

식민지 및 보호령 제도에 관한 프랑스 국제법 학자들의 견해

이석우(Lee, Seok-Woo) 백산학회 2009 白山學報 Vol.- No.83

During the late 19th century, Europe implemented policies concerning colonies and protectorates. During the period between the late 19th century and the early 20th century, French international law scholars conducted a series of research to show this tendency. In general, international law scholars at that time assumed the existence of the colonial system. They focused on dealing with problems that arose from the system. However, they did not question the colonial and protectorate system itself. They worked on setting up the obligations and rights of the colonizing state and the colony and the protector state and the protectorate in order to avoid clashes among the great powers in Europe. Their work served as values to support their national policies. In addition, although these international law scholars made a distinction between complete annexation and the protectorate, they too examined the protectorate from the perspective of national policy and extended their analysis to support the French colonial system. In other words, international law scholars at the time evaluated the protectorate system positively because it differed from the colonial system. The protectorate system was viewed as a way for less civilized nations to become a part of international society as sovereign states in a peaceful manner. However, as already known, the state practice went in a different direction than this early expectation. Most of the European countries that adopted the protectorate system did not improve the social and economic conditions of the non-European/uncivilized nations, but they pursued the policy of colonialization by taking these nations as their colonies. Nevertheless, the view of international scholars from the late 19th century to the beginning of the 20th century began to slowly change. They moved their focus from studying the conclusion of treaties between two countries which was the focal point of the protectorate system. Instead, they more intensely analyzed the circumstances surrounding the conclusion of treaties. It is meaningful that they discussed the problems and effects of protectorate treaties based upon this analysis. They posited that the European powers devised the protectorate system to reduce the cost of building colonies and to expand their colonial ambition. If we look at the results of colonial and protectorate policies, we can find that the people in the protectorates were under the authority of the head of their tribe, but in reality, they were under the control of the protectorate state. Therefore, the protectorate policy gradually changed the status of the people in the protectorate whereby they became more subordinated to the authority of the protecting state producing a similar result of expanding colonial rule. In reality, the colonial and protectorate policy was a way to disguise occupation and annexation. Therefore, for the colonial powers, the establishment of protectorates was one of the main programs of their colonial efforts. This disguised process of annexation was sometimes a continuous and lasting intervention into the sovereignty of other countries based on military occupation. Judging from the results of the research mentioned above, international law supported national policies for colonialization, but gradually it evolved in such a way to include a normative evaluation of the fundamental nature of colonial occupation. However, their analysis never reached a point where they concluded that the colonial policies or the protectorate system was unacceptable under international law. This fact has important policy implications in understanding the controversy between Korea and Japan over Dokdo. Korea’s territorial rights over Dokdo are based on two arguments. First, historically, Dokdo was a part of Korean territory, and secondly, Japan’s seizure of Dokdo in 1905 was invalid because it was in violation of international law.

압축냉각공기와 오일미스트를 이용한 환경친화 연삭가공기술

이석우(Seok-Woo Lee),최헌종(Hon-Zong Choi),허남환(Nam-Hwan Heo) 한국정밀공학회 2002 한국정밀공학회 학술발표대회 논문집 Vol.2002 No.5월

메소포타미아 고대도시의 변천과정과 특징에 관한 연구

이석우(Lee, Seok Woo),이주형(Lee, Ju-Hyung) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.12

메소포타미아 문명은 서기전 3800년경에 시작된 수메르 문명에서 시작하여 서기전 600년경 사라진 아시리 아와 바빌로니아 문명에 이르기까지 지리적 특징으로 인해 중첩되며 발달하였다. 하기에 3000여년간 지속된 도시의 변화과정을 살펴봄은 초창기 인류문명과 도시에 어떤 요소들이 중요하게 작용 되었는지를 알 수 있는 중요한 동기가 된다. 이 시기에 있었던 30여개의 도시 중 13개의 도시를 선정하여 분석한 결과 첫째 도시의 기능이 농경문화에서 점차 상업, 무역, 군사기능으로 전환되고 있음을 알 수 있었으며, 둘째 도시의 위치가 도시기능과 연관되어 메소포타 미아 남부에서 점차 북부로 이동하고 있었고, 셋째 도시의 형태는 ‘텔’ 이라는 구릉위의 도시형태가 점차 평지로 내 려오고 있었고 나중에는 지형에 의지하지 않는 계획도시의 형태를 띄게 되었으며, 넷째 신전중심의 도시구조가 왕궁 중심의 도시 구조로 서서히 변화하고 있음을 알 수 있었다. The Mesopotamia civilization is developed by physical geography. It began from Sumer civilization at BC 3800 and finished to Assyria and Babylonia civilization at BC 600. Therefore, to examine the changing process of the city of 3,000 years standing, it is important to know the elements of the influence to the initial human civilization and city. This study analyzed the 13 cities, that the city were among the 30 the city in same age. As a result of this study, firstly, functions of the city were gradually transition from the farming culture to the functions of commerce, trade, and military. Secondly, the location of the city was gradually move into northern from southern, it is associated with features of the city. Thirdly, the aspect of urban form, the hills above the city of Tel's shape was gradually coming down to the plains. So later, became a form of urban planning undisturbed terrain. fourthly, urban structure has slowly changed from the temple based city to palace based city.