Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

企業의 C.I.P 導入背景에 관한 硏究 : 뉴골든어패럴 C.I.P 導入을 中心으로

이재익,김병옥 부천대학 1992 論文集 Vol.13 No.-

This study was carried out to estimate the introduction background of C.I.P in Korea. Specially, this paper deals with the introduction background of C.I.P based on Newgolden Apparel C.I. design system. The basic elements of a C.I.P structure are V.I, M.I & B.I(V.I:Visual Identity, M.I: Mind Identity, B.I:Behaviour Identity). Therefore in this study, a introduction background of V.I, M.I & B.I element for Newgolden Apparel C.I.P was investigated. This study will be a basis for the planning & design criteria of Newgolden Apparel C.I.P in order to identify corporate image in Korea. In this paper, the study items chosen were "Corporate Symbol", "Corporate Logo", "Corporate Color", "Promotion Character", "Corporate Signature" which are the basic design system of Newgolden Apparel C.I.P.

平地와 돋움地域을 通過하는 鐵道騷音의 傳達特性에 關한 硏究 : 湖南線을 中心으로 Focused on the Honam Line

이병윤,윤해동,조원희,김재수 順天靑巖大學 1999 論文集-順天靑巖大學 Vol.23 No.-

With rapidly industrial development, a railway has become of a main traffic means. But, the rail noise has caused much annoyance for the residents living nearby railway tracks. Therefore, in our country, for established of quite dwelling environment, execute regulation standard of railway noise from January 1, 1997. Efficiency soundproofing measures, however, are very difficult because of the lack of basic data and insufficiency of the existing research. In this point, this study attempts to survey the characteristics of attenuation and propagation of railway noise. And this study intends to get the basic data for establishment of a standard about railway noise.

매복 견치 및 저위교합 제 1대구치의 자가 이식에 의한 치험례

이승익,김재곤,권선자,백병주 大韓小兒齒科學會 1995 大韓小兒齒科學會誌 Vol.22 No.2

In orthodontic treatment of certain cases of tooth loss, aplasia, or ectopia, autotransplantation is sometimes valid treatment alternative often provides and improved result, compared to conventional orthodontic treatment, an apprporiate donor tooth is available and the anatomic circumstances permit it. Clinically, successful transplants must show a radiolucent space between the roots and surroundings bone. There must be no evidence of ankylosis, no permanent root resorption, and no inflammation. Histologically, the criterion of success is a normal and functional periodontal ligament between the root surfaces of transplants and the bone, or gingival connective tissues. The successful autotransplantation of a impacted maxillary canine and infraoccluded mandibular 1st molar is reported. In case Ⅰ, impacted canine with incompletely developed root apex was maintained pulp vitality due to appropriate root development and short extraoral time, atraumatic surgical procedure. In case Ⅱ, infraoccluded molar was started endodontic treatment after 3 weeks. Because of closed apex, possibility of revasculization is rare. Both case Ⅰ, Ⅱ did not ankylosis and the periodontal and periapical tissues appears to be normal after 3 months. In autotransplantation cases it is important to transplant the tooth as quickly and as atraumatically as possible to dimish the chance of ankylosis and root resorption. In all cases of transplantation, patient selection minimal operating time, and good oral hygine will increase the chance for a successful prognosis.

지역농산물을 활용한 가공사업의 의의와 과제 : 청주지역의 사례

윤병선, 하재찬, 이혜정 건국대학교 사회정책연구소 2012 사회과학연구 Vol.26 No.-

...

상아질과 복합레진 접착부의 피로파괴에 관한 실험적 연구

이지연,김재곤,차경,백병주 大韓小兒齒科學會 1995 大韓小兒齒科學會誌 Vol.22 No.2

The purpose of this study was to investigated and evaluate the tensile bond strengths and fatigue fracture characteristics of four dentin adhesive systems to dentin surface. 99 extracted human teeth were randomly assigned to four groups, and exposed dentin surfaces treated with four dentin bonding agents. Resin composite was bonded to dentin by use of commercial adhesive systems. Thensile bond strengths were determined in an Instron universal testing machine at a crosshead speed of 1mm/min. and the fatigue characteristics were measured by the fatigue characteristics were measured by the Fatigue testing machine(Electro-dynamic type). Fractured dentin surfaces were examined by SEM. The following results were obtained. 1. The tensile bond strengths were 21.45MPa in All-Bond 2 group, 18.67MPa in AElite group, and 18.59MPa in Scotchbond Multi-Purpose group were higher than 10.29MPa in Gluma group(P<0.001). 2. The fatigue life of All-Bond 2, AELite and Scotchbond Multi-Purpose group were singificantly higher than Gluma group when a 24.13MPa cyclic flexure load was applied(P<0.001). 3. The fatigue life of All-Bond 2, AElite and Scotchbond Multi-Purpose group were decreased when a 39.21 or 45.25MPa cyclic flexure load was applied, but these were not showed statistically different(P>0.05). 4. In All-Bond 2, AElite and Scotchbond Multi-Purpose group, the fatigue fracture of resin/dentin interface occured within a resin-infiltrated area, but in Gluma group, at near its interface with adhesive layer.

Thermal cycling 과 시효처리가 Glass-Ionomer수복재의 인장강도에 미치는 영향

이승익,백병주,김재곤,이승영,김문현 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.4

본 연구에서는 구강환경과 유사한 액상의 조건하에서의 온도변화가 광중합형 글래스아이오노머계 수복재의 인장강도에 미치는 영향을 평가하기 위해 대조군으로 2종의 재래형 glass ionomer를 선택하고 실험군으로 2종의 광중합형의 resin-modified glass ionomer와 2종의 polyacid-modified resin composite을 선택한 다음 수중에서의 thermal cycling과 시효처리를 행하였으며, 다음과 같은 결론을 얻었다. 1. 글래스아이오노머 수복재의 인장강도를 측정한 결과, polyacid-modified resin composite, resin-modified glass ionomer 그리고 재래형 glass ionomer의 순으로 나타났다. 2. 인장강도는 30일간의 시효처리로 증가되는 경향을 보였다. 3. 재래형 glass ionomer 수복재의 인장강도는 thermal cycling 처리로 증가되는 경향을 보였으며, 37℃의 증류수 중에 1시간 침적한 군과 10,000회의 thermal cycling을 비교한 결과 유의한 차이로서 강도의 증가를 나타냈다(P<0.01). 4. thermal cycling 군의 인장강도는 DR군이 45.4MPa로 최대치를, FL군이 13.4MPa로 최소치를 나타냈으며, 각 군간의 통계적 유의성을 검증한 결과 polyacid-modified resin composite의 인장강도가 나머지 군과 유의한 차이를 보였다(p<0.05). 5. 특성강도는 DR군이 48.6MPa로 가장 높은 강도치를 보였으나, Weibull 계수는 CG군이 8.9로 가장 높은 값을 보여 시험재료 중에서 가장 작은 강도의 분산을 나타냈다. This study was performed to evaluate the effect of aging and thermal cycling on the tensile strength of six commercially available glass-ionomer materials: two chemically set glass-ionomer materials(Fuji Ⅱ, fuji Ⅸ), two resin-modified glass-ionomer materials(Fuji Ⅱ LC, Vitremer), and two polyacid-modified composite resins(Compoglass, Dyract). Rectangular tension test specimens were fabricated in a teflon mold giving 5mm in gauge length and 2mm in thickness. All samples were divided into 3 groups. Group 1 was immersed in a 37℃ distilled water for 1 hour. Group 2 was immersed in a 37℃ distilled water for 30 days. Group 3 was subjected to 10,000 thermal cycles between 5℃ and 55℃, and the immersion time in each bath was 15 seconds per cycle. Tensile testing was carried out at a cross-head speed of 0.5mm/min and fracture surfaces were examined with scanning electron microscope. The results obtained were summarized as follows; 1. The polyacid-modified composite resins were stronger than the resin-modified glass-ionomer materials, which were much stronger than the conventional glass-ionomer materials. 2. Tensile strengths were slightly increased after aging treatments for 30days. 3. Tensile strengths of conventional glass ionomers were significantly increased after thermal cycling treatment(p<0.01). 4. The highest tensile strength value of 45.4MPa was observed in the Dyract group and the lowest value of 13.3MPa was observed in the Fuji Ⅱ LC group after the thermal cycling test, and the strengths of polyacid-modified composite groups were significantly higher than those of other groups. 5. The highest characteristic strength value of 48.6MPa was obtained in the Dyract group, however the highest Weibull modulus value of 8.9MPa was obtained in the Compoglass group after thermal cycling test.

웹 기반 BASIC 프로그래밍 실습 환경

이재선,창병모 숙명여자대학교 자연과학연구소 2000 자연과학논문집 Vol.- No.11

프로그래밍 학습을 원하는 학 습자들은 컴파일러나 인터프리터와 같은 언어처리기를 먼저 갖추어야 한다. 이는 학습자들에게 언어처리기 설치에 대한 부담과 업그레이드 문제 등 학습 이외의 부담을 주게된다. 본 논문에서는 별도의 언어처리기를 설치하지 않아도 웹 상에서 프로그래밍 학습과 실습이 모두 가능한 실습 환경을 구현하였다. 구현된 시스템에서는 BASIC 언어에 대한 학습과 실습이 웹 상에서 모두 가능하도록 Java애플릿으로 구현된 BASIC인터프리터를 제공해준다. 또한 애플릿으로 구현된 편집창과 BASIC 인터프리터간의 통신을 통해 서버로부터 예제 파일을 불러와 편집이 가능하며, 편집한 프로그램을 인터프리터로 전송시켜 자동 실행할 수 있다. 이러한 기능들을 통하여 학습자들에게 웹 상에서 효과적으로 프로그래밍 언어를 학습 할 수 있는 환경을 제공해 준다. Leamers who want to learn programming should install language processors like compilers or interpreters first. This gives an extra burden other than programming learning. In this paper, we design a virtual programming environment that enables learners to learn and practice programming on the web without installing languages processors. This system provides a BASIC interpreter as Java applet so as to learn and practice programming on the web. It also provides an editor so as to edit example files brought from the server. Edited programs can also be sent to interpreter and executed automatically. These functions make it possible to learn programming language more effectively on the virtual programming environment.

공공분야 전자상거래 추진에서 나타난 정보기술 관점의 사례분석 연구

이재두,김정태,김병초 한국경영과학회 2002 한국경영과학회 학술대회논문집 Vol.- No.1(1)

본 연구에서는 국가 및 공공부문에서 전자상거래를 추진할 때 정보기술과 관련되어 발생하는 공통되는 문제를 도출하여, 향후 전자상거래를 추진할 때 시사점 및 교훈을 제시하고, 전자상거래를 추진하려고 하는 조직의 시행착오 최소화 및 이와 관련된 위험요소를 식별하기 위한 아이디어를 찾고자 한다. 이를 위해 공공에서 추진한 전자상거래와 관련된 정보화사업의 사례와 정보기술관점의 점검활동인 정보시스템감리의 결과를 기술적 관점에서 분석한다. 그리고 공공부문에서의 전자상거래관련 정보화사업을 추진을 할 때 기술적인 관점에서 유의해야 할 시사점을 도출하고, 향후 국가 정보화 사업의 효율성 및 효과성을 제고를 할 수 있는 방법을 제시 하고자 한다.

鐵道騷音에 의한 影響과 實態에 關한 硏究 : 湖南線을 中心으로

이병윤,윤해동,곽광수,장영휴,김재수 順天靑巖大學 1998 論文集-順天靑巖大學 Vol.22 No.2

Rail noise and vibration is one of the major problem for the residents living nearby railway tracks. The rail noise may inflict a considerable damage to physiological, spiritual, mental and discomfort to neighboring peoples. Therefore, residents living nearby railway were appeal many troubles. Nevertheless, in our country, adequate guidelines for the rail noise are not yet established because of the lack of basic data and insufficient research works. In this point, this study attempts to surveys the influence of rail noise in urban area using questionnaire. This study also present a basic data in establishing effective plans for rail noise in the future.