Reference Map of Soluble Protenis from Salmonella enterica Serovar Enteritidis by Two-Dimensional Electrophoresis

김곤섭,Eung-goo Lee,Yong-hwan Kim,정태성,Yong-seung Shin,Gee-wook Shin,Hui-guen Cha,Mi-rim Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Map of Soluble Proteins from Salmonella enterica Serovar Enteritidis byTwo-Dimensional ElectrophoresisMi-rim Park, Eung-goo Lee, Yong-hwan Kim, Tae-sung Jung, Yong-seung Shin, Gee-wook Shin, Hui-guen Cha and Gon-sup Kim*Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, KoreaReceived May 17, 2003 / Accepted July 23, 2003J. Vet. Sci. (2003), 4(2), 143-149JOURNAL OFVeterinaryScience*Corresponding author: Gon-sup Kim Laboratory of Veterinary Biochemistry, Collage of Veterinary Medicine, Gyeongsang National University, 900 Gazwa, Jinju 660-701 Korea Tel: +82-55-751-5823, Fax: +82-55-751-5803 E-mail: gonskim@nongae.gsnu.ac.kr

급성 포름알데히드 가스 흡입에 의한 흰쥐 후각상피의 형태학적 변화

백선용,전재기,문용석,황승영,노환중,고의경,왕수건 대한해부학회 1998 Anatomy & Cell Biology Vol.31 No.3

MPLS망에서 RSVP와 DiffServ연동모델의 성능분석

최승권,오구영,지홍일,신승수,조용환 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.1

The explosive growth of the internet traffic has imposed tremendous stress on routers, particularly, in the core network. Today's IP services reflect the unpredictable and undifferentiated packet loss and jitter characteristics of traditional best-effort routers. For above requirements, it is required not only the high-speed transmission of the packet, but the new routing function, the guarantees of QoS and bandwidth, the supports of user-requested services MPLS is proposed by the IETF and many other research institute as the solutions for this problem. In this paper, analyze performance of QoS Model applied RSVP over DiffServ to MPLS network. this model is each RSVP applied access network and DiffServ applied core network. In Result, It is amiss that basis MPLS net uses to core network because the average packet loss rate and average delay time are increased if traffic increases. Experiment result was seldom difference in case of network that apply each RSVP, DiffServ, RSVP over DiffServ. RSVP over DiffServs case packet loss rate and delay time were low than DiffServ and the packet loss rate is high because comparing than RSVP but delay time was very low.

체적제어를 이용한 신뢰성 기반 위상 최적화

박재용,황승민,임민규,오영규,박재용,한석영 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

This paper presents a reliability-based topology optimization (RBTO) using bi-directional evolutionary structural optimization (BESO). An actual design involves uncertain conditions such as material property, operational load and dimensional variation. Deterministic topology optimization (DTO) is obtained without considering of uncertainties related to the uncertainty parameters. However, the RBTO can consider the uncertainty variables because it has the probabilistic constraints. In this paper, the reliability index approach (RIA) is adopted to evaluate the probabilistic constraint. RBTO based on BESO starting from various design domains produces a similar optimal topology each other. Numerical examples are presented to compare the DTO with the RBTO.

개질재를 혼입한 재생아스콘의 역학적 특성에 관한 실험적 연구

박승범,조광연,조청휘,김정환,채용주 충남대학교 산업기술연구소 2000 산업기술연구논문집 Vol.15 No.1

This paper presents the results of an experimental study on the mechanical properties of modified recycling asphalt concrete. Research has been performed to obtain the characteristics of the modified recycling asphalt concrete such as marshall test, indirect tensile test, resilient modulus and wheel tracking test by varying contents of modifier (SBS, SBR) and recycled aggregate(30, 50, 70%). Modified recycling asphalt concrete showed better performance than new asphalt concrete in dynamic stability. Each quality property of the modified recycling asphalt concrete satisfied requirement of pavement construction specification.

지능로봇의 능률적인 3차원 경로계획 알고리즘 개발에 관한 연구

이승철,김용환 중앙대학교 기술과학연구소 1997 기술과학연구소 논문집 Vol.27 No.-

본 연구에서는 로봇과 목표지점사이에 경로가 존재하는 한 항상 경로를 발견할 수 있는 grid method에 기초하여 지금까지의 각종 경로계획기법들의 단점을 개선하고 로봇이 스스로 자기의 경로를 찾아가는 기법을 개발하였다. 본 연구의 기본 접근방법은 본 연구책임자에 의해 행하여지고 참고문헌 [1]에서 소개된 바 있는 소위 CREEP (Concentric Ripple Edge Evaluation and Progression) Method에 의거하였다. 본 연구는 기본적으로 로봇의 주위환경을 grid로 분할할 다음 목표지점을 중심으로 하여 가상의 동심원의 물결이 퍼져 나오는 것으로 가정하였고, 이 동심원의 물결이 로봇을 만날 때가지 진행하여 경로를 발견토록 하였다. 본 연구의 결과, 로봇환경영역 모델을 3차원으로 확대하였고, Local update만으로 경로 계산의 update를 가능케 하여 실시간 navigation에 필수적인 경로계획시간의 현저한 단축을 이룰 수 있었으며, Computer simulation을 통하여 본 기법의 타당성을 보일 수 있었다. In this study, an efficient and robust robot path planning technique is developed. concentric Ripple Edge Evaluation and Progression(CREEP) algorithm[1] has been elaborated and expanded to carry out 3-D path planning. Like the 2-D case, robot can always find a path, if one exists, in a densely cluttered, unknown and unstructured 3-D obstacle environment. 3-D space in which the robot is expected to navigate is modeled by stacking cubic cells. The generated path is resolution optimal once the terrain is fully explored by the robot or all the information about the terrain is given. Path planning times are significantly reduced by local path update. Accuracy and efficiency of wave propagation in CREEP algorithm are achieved by virtual concentric sphere wave propagation. Simulations in 2-D and 3-D spaces are performed and excellent results are demonstrated.

중부산간마을 외부공간 구성의 특성에 관한 연구 : 충북 영동의 마을을 중심으로 Focused on the Mountain Villages in Young-Dong district, Ch'ung-buk

양승정,김용승,박용환 漢陽大學校 工學技術硏究所 2001 工學技術論文集 Vol.10 No.-

본 연구는 충청북도 영동군에 있는 두 산간마을을 중심으로 공간통사론의 '정량적인 해석을 통하여 공간 구성의 특성을 파악하였다. 취락구조 및 외부공간구성에서 나타난 특성을 살펴보면 다음과 같이 나타나는데, 두 산간마을의 내부도로는 큰길-어귀길-안길-샛길-골목길 등 위계적인(전통적인) 길의 체계를 유지하고 있는데, 마을에 대한 외부인의 방문시에는 안길 등 통합적인 공간에서 영향이 크게 나타나고 있으며, 공간이 깊어질수록 거주자에게 영향이 크게 나타난다. 가옥의 좌향은 일조보다는 길을 향하여 배치가 결정되어 있으며, 주거의 마당은 통로로서 길의 역할도 수행하고 있어 거주자들은 마을에 대한 공동체의식에 대해 개방되어있다. 또한 두 마을은 경사의 형태에 따라 인지도와 접근성에 대해 각각 다른 차이를 보인다. This study examines the Space Syntax theory of the spatial system of settlement in central mountain villages by means of analyzing the spatial organization and the structural characteristics of the two mountain villages in Young-Dong district, Ch'ung-buk province. The conclusions are as follow: The village's street has a grade of rank in the exterior spatial structure, and it is found out one of the most important feature that the unification of inside street with the function for checking outsiders. Also, it is found out important feature that the lay of house in arrangement has been fixed by the street rather than the sunshine, and since a housing yard has been performed the part of street as the path, the residents are open to the community consiousness for the village. Also a couple village is distinct between the recognizability and approachability according to the slanted shape.

거대적아구성빈혈의 임상적 고찰

곽승근,천재민,박남숙,박상은,박수진,윤환중,김삼용,조덕연 충남대학교 의학연구소 2003 충남의대잡지 Vol.30 No.2

Megaloblastic anemias are disorders caused by impaired DNA synthesis and chara-cterized by the presence of megaloblastic cells. Clinical data on these disorders in Korea are limited. The aim of this study was to analyze clinical characteristics of megaloblastic anemias caused by vitamin B12 deficiency. We identified 40 cases who were diagnosed as megaloblastic anemia from January 1993 to December 2002 in a retrospective study on the basis of chart review. We investigated the annual distribution of diagnosed patients, clinical manifestations and response to treatment. 19 cases were complicated with a previous total gastrectomy(gastrectomy group) and 21 cases had no history of surgical operation(non-gastrectomy group). The most common presenting complaint was generalized weakness. The median age at diagnosis was 7(range: 38-79) years in non-gastrectomy group. The mean pos-toperative duration was 7(range: 4-25)years in group of total gastrectomy and mean level of serum vitamin B12 was lower than 100 pg/mL in both group. Peripheral blood revealed thrombocy-topenia, macrocytic anemia and hypersegmented neutrophil in all cases. After treatment of pareliteral vitamin B12, Their clinical symptoms and hematologic findings improved except two patients who had bone marrow with lower cellularity. Cobalamin replacement after total gastrectomy is still missing. Diagnoses are made too late in a population of patients, resulting in irreversible neurological sequale, and we suggest that Pernicious anemia seems not to be very rare in Korea.

석청(Mad-honey) 복용 후 유발된 부정맥 1예

김용철,김남호,김승환,최준호,박은미,이상재,이은미,유남진,윤경호,오석규,정진원 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

석청에 포함된 grayanotoxin에 의해 독성 작용이 나올 수 있으며, 이러한 독성 작용은 일반적으로 24시간 이내 저절로 회복된다. 최근에 본 저자들은 석청 복용 후 발생한 심실빈맥을 경험하였기에 보고하는 바이다. 49세 남자가 호흡곤란으로 내원하였으며, 내원당시 분당 40회 정도의 동성 서맥이 관찰되었고, 수액을 투여하던 중 심실 빈맥이 발생하였다. 항부정맥제를 투여 후 정상 동율동으로 전환되었으며, 특별한 이상 없이 4일 후 퇴원하였다. Mad-honey intoxication caused by the consumption of honey producted from the nectar of rhododendrons. The grayanotoxins cause the intoxication. The toxic effects of mad-honey poisoning are rarely fatal and generally last for no more than 24 hours. We experienced one case, a 49 years-old man who presented with dyspnea after ingestion of mad-honey. He showed marked sinus bradycardia with < 40 beats per minute on admission. The cardiac rhythm was changed to ventricular tachycardia immediately. These features resolved completely in 24 hours with continuous infusion of amiodarone(600 mg per day) and fluids. We report the case of intoxication of mad-honey as a presentation of fatal cardiac arrhythmia.

두부손상시 발견된 뇌혈관질환

윤승환,변진수,홍순기,김헌주,한용표 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.10

Five separate incidences of patients with cerebrovascular disease(CVD) were revealed among 555 craniocerebral traumatic victims between 1991 and 1992. The 5 cases of with cerebrovascular disease revealed included 3 aneuryms. 1 arteriovenous malformation and 1 spontaneous intracerebral hematoma caused by angiographic study. The frequent use of computerized tomographic scans in the evaluation of head-injured victims can well demonstrate an intracerebral hemmorrhage, but may not get able to direct the associated cerebrovascular disease;whereas the efficacy of angiography, on the contrary, has been losing its popularity as diagnostic armamentarium. The importance of angiographic study should be considered, if clinical signs and/or brain CT ideate the possibility of cerebrovasular disease even during the course of head injury management.