환경영향평가서 분석

이재운,장준기,권명희,방규철,정동환 ( Jae Woon Lee,Chun Ki Chang,Myeong Hee Kwon,Kyu Chul Bang,Dong Hwan Jeong ) 한국환경영향평가학회 1994 환경영향평가 Vol.3 No.2

급성사혈이 저온견의 심폐동태에 미치는 영향

이재운,Lee, Jae Woon 대한심장혈관흉부외과학회 1969 Journal of Chest Surgery (J Chest Surg) Vol.2 No.1

This experiment was carried out to study the effect of rapid hemorrhage on cardiopulmonary hemodynamics of the cooled dogs. Hypothermia was induced by means of body surface cooling with ice water. Lowest esophageal temperatures ranged from 24 to 26 degree. Dogs were bled via the femoral artery into a reservoir in amount of the equivalent blood volume of 3% of body weight of the dogs. Some dogs were reinfused with the same amount of blood which they lost and others infused with 5% dextrose solution. Fourty adult mongrel dogs were divided into three groups: group I[15 dogs]; dogs were bled in normothermic state. Five dogs had no further treatment, but five dogs were reinfused with blood and five infused with 5% dextrose solution 30 minutes after bleeding. GroupII[10 dogs]; dogs were bled as group I after having been cooled. Five dogs were reinfused with blood as group I. Group III[15 dogs]; dogs were first bled and then cooled. Reinfusion procedures were the same as in group l Results were as follow: 1. The heart rate showed a slight decrease after bleeding in group I and then increased over the control level after 60 minutes. After reinfusion and infusion, the heart rate was also increased gradually and after three hours almost returned to the control level. In group II and groupIll, the heart rate decreased remarkably and after reinfusion showed a light increase but after infusion tended to decrease cotinually. 2. The stroke volume showed remarkable decrease after bleeding in group I., and recovered to control level after reinfusion and infusion,and then gradually decreased again. In group III, the stroke volume showed no remarkable change after hypothermia, and tended to decrease after reinfusion. In group III, the stroke volume decreased remarkably after bleeding and hypothermia,and clearly increased after reinfusion and infusion and then returned to control level. 3. Femoral mean pressure declined very rapidly and significantly right after bleeding and showed a remarkable prompt rise after reinfusion and infusion in group I [67% recovery]. On the other hand, it declined remarkably after hypothermia and bleeding and showed a slight rise after reinfusion and infusion in group II[46% recovery] and III [41% recovery]. 4. Venous pressure declined slightly after bleeding and tended to return to the control level after reinfusion and infusion,in group I. In group II, it did not change significantly during hypothermia but showed a slight decline after bleeding and returned toward control level after reinfusion. In group III, it declined slightly after bleeding and showed no significant change after hypothermia and rose over the control level after reinfusion and infusion. 5. Right ventricular systolic pressure decreased markedly after bleeding and then increased progressively after 30 minutes. It increased after reinfusion and infusion as well, approaching the control level in group I. In group II, it showed no significant change during hypothermia, but decreased remarkably after bleeding and then returned to near control level after reinfusion. In group III, it was decreased markedly after bleeding but did not change significantly during hypothermia and showed a slight increase after reinfusion. 6. The respiratory rate increased gradually after bleeding and decreased gradually after reinfusion but did not return to the control level, whereas it decreased near to the control level after infusion,and tended to increase in group I. In group II, it decreased significantly after hypothermia and bleeding but returned near to the control level after reinfusion. In group III, it showed a remarkable decrease after hypothermia and increased slightly after reinfusion and infusion but did not return

상호작용 증진을 위한 웹 기반 발표학습 전략

이재운,김성식,Lee, Jae-Un,Kim, Seong-Sik 한국컴퓨터산업학회 2007 컴퓨터産業敎育學會論文誌 Vol.8 No.4

최근의 교육적 패러다임은 정보 통신의 발전에 따라 지식의 수동적인 전수자로서의 교육이 아닌, 실세계의 복잡하고 다양한 문제를 해결할 수 있는 능동적인 구성자로서의 교육을 요구하고 있다. 이러한 변화는 정보와 아이디어의 소유보다는 공유를 통해 다른 사람의 다양한 시각을 접할 수 있는 교육-환경을 요구한다. 이에 본 연구에서는 발표학습을 통한 상호작용 효과를 극대화하기 위해 발표의 일회성에 기인하는 단점, 발표자료의 재활용이 미흡한 점을 보완하며, 상호작용 활동의 연장, 발표활동에 참여하지 못하는 학습자에 대한 동기 부여를 통해 지속적인 상호작용이 가능하도록 웹 기반 형태의 발표학습 전략을 설계하였다. 이를 위해 동료학습자간 발표자료 제공자와 학습자로 구분하여 각각의 역할을 제시하고, 발표학습을 지원하기 위한 시스템 구성 전략을 단계별로 제시하였다. 본 연구에서 제안하는 발표학습 전략을 통해 동료학습자간의 지속적인 상호작용이 가능하며, 시 공간 제약없이 하교 후에도 가정에서 발표학습 활동이 계속 이루어져 상호작용을 통한 교육적 효과가 클 것으로 기대된다. Recording to development of info-communication, recent educational paradigm asks not for a passive transmitter but an active constructor who can solve the various complicated problems in real situations. Such a change asks for the educational setting which includes sharing ideas and information rather than possessing them by themselves. Learning through presentation has many problems which are few chances of presentation as well as reusing of presentation data. etc. This study suggested the strategy which are promoting interactions through presentation class and using practically. For this, role of the presentation data provider and learner was suggested, also strategies to implement of the presentation learning support system step by step. Through the strategy of this paper could maintain the active communicating relationship between the learners. Without the limitation of the time and space, the real time communication is made while looking at the presentation data of the other party, the teaming effect by the presentation teaming strategy is expected to be high.

Intramuscular Cavernous Hemangioma of the Masseter Muscle in Child and Adolescent

이재운,조완석,김승범,이동훈,Lee, John Jae Woon,Cho, Wan Seok,Kim, Seung Bum,Lee, Dong Hoon 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.1

근육내 혈관종은 주로 몸통과 사지에 발생하며, 두경부 영역에서의 발생은 드문 것으로 알려졌다. 저자들은 교근에서 발생한 2예의 근육내 혈관종을 치험하였기에 문헌 고찰과 함께 보고하는 바이다. 임상의사들은 특별한 원인 없이 진행되는 이하선 부위의 종창을 주소로 내원하였을 때, 교근에서 발생한 근육내 혈관종의 가능성도 염두 해두어야 한다.

전해조건이 고순도 알루미늄 박 콘덴서의 터널에칭과 정전용량에 미치는 영향

이재운(J. U. Lee),이병우(B. W. Lee),김용현(Y. H. Kim),이광학(K. H. Lee),김홍식(H. S. Kim) 한국표면공학회 1997 한국표면공학회지 Vol.30 No.1

결합부가 있는 복합 구조물의 동적 해석

이재운(Jae Woon Lee),고강호(Kang Ho Ko),이수일(Soo Il Lee),이장무(Jang Moo Lee) 한국소음진동공학회 1994 한국소음진동공학회 학술대회논문집 Vol.1994 No.11

유연성 영향 계수를 이용한 구조물의 결합부 해석

이재운(Jae Woon Lee),고강호(Kang Ho Ko),이수일(Soo Il Lee),이장무(Jang Moo Lee) 한국정밀공학회 1995 한국정밀공학회 학술발표대회 논문집 Vol.1995 No.11월

수질관리 : 공원묘지 지점의 비점오염물질 유출특성

이정용 ( Jeong Young Lee ),이소영 ( So Young Lee ),( Marla C. M. ),최지연 ( Ji Yeon Choi ),강창국 ( Chang Guk Kang ),( Joan B. G. ),이재운 ( Jae Un Lee ),김이형 ( Lee Hyung Kim ) 한국물환경학회 ( 구 한국수질보전학회 ) 2009 공동 추계학술발표회 Vol.2009 No.-

유연한 형태를 갖는 동적 객체 대상의 실시간 프로젝션 매핑

이재운(Jaewoon Lee),김연진(Yeonjin Kim),김동호(Dongho Kim) 한국HCI학회 2014 한국HCI학회 학술대회 Vol.2014 No.2

본 논문은 실제 공연에 적용 가능한 프로젝션 기반 증강현실로서 배우가 착용한 의상 표면에 실시간으로 이미지를 투사하여 정합하는 프로젝션 매핑 기법을 제안한다. 현대 공연예술에서 시각적 표현의 확장을 위해 프로젝션 기술이 폭넓게 사용되고 있으나 대부분 무대세트나 대도구와 같이 공연장의 실내 환경이나 특정 객체의 외관을 증강하는 것에 한정되어 있다. 본 연구의 목적은 프로젝션 매핑의 대상을 배우의 의상으로 확장하여 관객들로 하여금 더 나은 시각적 관객 경험을 유발하기 위함이다. 이를 위해, 프로젝션 매핑의 대상이 되는 배우 의상을 유연한 형태를 갖는 동적 객체로 정의하고 기존의 프로젝션 매핑 기법을 적용하는데 발생할 수 있는 한계를 분석한다. 또한 이 한계를 극복하기 위한 방안으로 실시간 마스킹을 통한 프로젝션 매핑 기법과 이를 적용한 유연한 형태를 갖는 동적 객체 대상의 실시간 프로젝션 매핑 시스템 설계를 제안함으로써 실제 공연에 효과적으로 적용할 수 있는 가능성을 논의한다. This paper proposes real-time projection mapping technique to project and match imagery on the surface of a real costume of an actor as projection-based augmented reality technology for performing arts. In modern performing arts, video projection technology have been widely used for expansion of visual expression, but mostly it is limited to augmenting interior environments or the surface of a specific object such as theatrical sets or stage sets on stages. The purpose of this study is to induce the visual experience of audience by expanding the target of projection mapping to the costumes of the actors. For this purpose, we define the costume as dynamic object which has flexible shape and analyze limitations when applying existing projection mapping. In addition, we suggest a real-time masking projection mapping method to overcome the limitation and system design of the dynamic object applied this method, and then discuss future work for actual performance.

국제항공화물운송의 법적 규제에 대한 고찰

이재운(Jae Woon LEE) 한국무역상무학회 2016 貿易商務硏究 Vol.69 No.-

International air transport for cargo services is a facilitator for various trade sectors and, by itself, an important service industry. Although international air cargo industry is expected to grow continuously, industry stakeholders complain about legal constraints in the industry and demandmore liberalized regime. Fromits birth at the beginning of the 20th century, the airline industry was tightly regulated by governments with a strong tradition of protectionism. In the past few decades, however, protectionism in the airline industry has steadily declined. Indeed, the airline industry is largely in the process of liberalization. Interestingly, it has been easier to liberalize air cargo service than passenger service. Indeed, states have traditionally shown far more willingness to provide market access for foreign carriers carrying cargo than passengers. Given the impact of air cargo service in a state's wider economy and own characteristics of cargo services (i.e. air cargo traffic is inherently one-way, unlike passenger traffic, which tends to involve round trips), more liberalized approach is necessary for air cargo services. Among three approaches: bilateral, regional (block-based) andmultilateral , it is desirable to adopt amultilateral treaty (a new multilateral all-cargo agreement) so as to harmonize and simplify complicated trade regulations on air cargo services.