이기종간의 상호운용성을 지원하는 이동 에이전트 시스템

이명준,박양수,유양우,문남두,김진홍,안건태 울산대학교 2000 공학연구논문집 Vol.31 No.1

현재 대부분의 이동 에이전트 시스템들은 그들 자신의 구조를 가지며 서로 다른 방법으로 구현되어 있다. 이러한 에이전트 시스템들은 서로 다른 인터페이스를 제공하고 있어서 이기종의 에이전트 시스템에서 새성된 에이전트들은 상호 이동하여 작업을 수행할 수 없다. 이러한 문제를 해결하기 위하여 이동 에이전트 시스템간의 상호운용성 지원이 중요한 과제로 다루어지고 있다. OMG(Object Management Group)는 이질적인 에이전트 시스템간의 상호운용성을 증진시킬 목적으로 MAF(Mobile Agent Facilities)명세를 제안하였다. MAF명세는 MADAgentsystem과 MAFFinder 두개의 인터페이스로 구성되어 있으며 에니전트 관리, 코드의 이동성, 명명 규칙에 관한 기능을 제공한다. 본 논문에선는 OMG의 MAF 명세를 만족하는 SMART 이동 에이전트 시스템의 설계와 이의 구현에 대하여 설명한다 SMART 이동 에이전트 시스템의 구성은 에이전트를 실행시키는 환경을 제공하는 플레이스(place), 에이전트의 라이프사이클과 플레이스를 감시하는 모니터(monitor) 그리고 에니전트에게 시스템의 자원을 할당하는 자원관리자(resource manager)로 이루어져 있다. Most current mobile agent systems adopted their own architectures, being implemented in various ways. Since those agent systems provide different interfaces, agents created in one mobile agent system could not move to other agent systems to perform their tasks. To solve this problem, interoperability becomes one of the important issues on mobile agent systems. The OMG(Object Management Group) proposed the MAF(MAF(Mobile Agent Facilities) specification for the interoperability among heterogeneous mobile agent systems. the MAF specification contains MAF Agent System and MAFFinder interfaces, and defines agent management, code mobility and naming rules. In this paper, we describe the design and implementaion of the SMART mobile agent system which satisfies the OMG MAF specification. The SMART system consists of Places that provide execution environments for agents, Monitor that monitors life-cycle of agents and places, and Resource Manager that allocates resources of system for agent.

혼합형 자가면역성 용혈성 빈혈을 동반한 전신성 홍반성 루푸스 1예

이승철,김선임,이승훈,이현경,조남국,한성훈,유영진,조종래 인제대학교 2000 仁濟醫學 Vol.21 No.2

A 17-year-women developed mixed warm and cold antibody type autoimmune hemolytic anemia associated with systemic lupus erythematosus. The patients was admitted to our hospital for syncope. Jaundice was observed. Urinalysis revealed protein and hemoglobin. Her hemoglobin was 4.6g/dl and reticulocytes were 10%. Total bilirubin was elevated, while haptoglobin and complement were abnormally reduced. ANA and mitochondrial Ab were detected. The direct and indirect Coombs test were positive. The direct antiglobulin test was positive ; IgG and C3d were detected on the red cell surface. The cold agglutinin(CA) titer was 128. The patients was initially treated with high dose steroid therapy. However the patients did not responded to high dose steroid therapy. We treated the patients with plasmapheresis and synchronized cyclophosphamide therapy. Clinical remission of hematologic complications was achieved in this patients. We report a case of mixed type autoimmune hemolytic anemia with SLE that responded plasma pheresis and synchronized cyclophosphamide therapy.

나노크기 은촉매를 이용한 에틸렌 산화반응

이상량,정유성,신재순,김영철,박남국 한국공업화학회 2002 응용화학 Vol.6 No.2

Partial oxidation of ethylene to ethylene oxide was studied using silver caralystsiadeposited on a low surface area support, such as d-alum(< 1 m^2/g). Theselectivity to ethylene oxide has been reported to be related to the surface area ofactive silver species. Thus the activity of silver catalysts was studied in view of theparticle size of Ag.The catalyst prepared by water-alcihol method showed higheractivity. The addition of Cs as a promoter at higher temperature was observed toincrease catalytic activity of silver catalysts, presumably by increasing the surfaceares of active silver.

IPS Empress 도재관의 파절강도 : 하악 중절치에서 절단연 삭제량과 측면 경사도에 따른 영향

남영성,김계순,정영찬,김유리,동진근 원광대학교 치의학연구소 2003 圓光齒醫學 Vol.12 No.1

The purpose of this study was to compare the fracture strength of the IPS Empress ceramic crown according to the incisal depth (1.5mm, 2.0mm, 2.5mm) and axial inclination (4˚, 8˚, 12˚) of the lower central ncisor. After 10 metal dies were made for each group, the IPS Empress ceramic crowns were fabricated and each crown was cemented on each metal die with resin cement. The cemented crowns mounted on the testing jig were inclined 30 degrees and a universal testing machine was used to measure the fracture strength. The results of this study were as follows : 1. The fracture strength of the ceramic crown with 2.0mm depth and 12˚ inclination was the highest (648 N). Crowns of 1.5mm depth and 4˚ inclination had the lowest strength (482 N). 2. There were no significant differences of the fracture strength by axial inclination in same incisal depth group. 3. The fracture mode of the crowns was similar. Most of fracture lines began at the loading area and extended through proximal surface perpendicular to the margin irrespective of incisal depth. There had correlation between fracture strength and fractured surface area.

나노크기의 은 촉매제조 및 특성분석

정유성,이상량,신재순,김영철,박남국 한국공업화학회 2002 응용화학 Vol.6 No.2

Nano-sized silver catalysts have been prepared by alcohol and dioctyl esterof sodium sulphosuccinic acid, anionic surfactant, Aerosol OT(AOT). TOD/TPR andethylene oxide activity have been studied to investigate the characteristics of silvercatalysts. The sizes of Ag particles were estimated to be 10∼16 nm and the peak ofsilver oxide was not observed by XRD except for metallic silver. The desorptionpeak of molecular oxygen by TPD/TPR uniqely observed at about 400 ℃ in thecatalyst prepared by water-alcohol method. However, in the catalyst prepared bymicroemulsion method, the desorption peaks of molecular and atomic oxygens wereobserved at about 400 ℃ and 600 ℃, respectivly. The catalyst prepared by water-alcohol method showed higher activity ethylene oxide than the catalyst prepared by microemulsion method. It eems due to the larger silver particles and easier desorption of molecular oxygen from the catalyst prepared by water-alcohol method.

비정형 자료의 정량화를 위한 정보계측 기법의 개발

정남수,이정재,김한중,허유만 한국농업정보과학회 2003 농업정보과학 Vol.4 No.1

Statistical total information was suggested by modifying Gell-Mann's total information in the process of dividing by bit number of composing elements. Results of application satisfied set condition of information suggested by Gell-Mann, converged in the case that all elements are known, and expressed the differences with deterministic information. To find the relation with real value, total information gathered in Encyclopedia regressed with land value and showed significant relation. Further research on automatic gathering information in more stable IGUS like internet would benefit assessing ambiguous value like environment and human feeling.

특수공작기계에서 쇼트피닝기의 특성 및 투사속도에 관한 연구

노승남,이승호,서유원 서울산업대학교 산업대학원 2000 大學院論文集 Vol.7 No.-

As developing the technology in industry, the materials with superior grade of stiffness and lightness are required, and hence the higher fatigue strength characteristics are necessary. Thus, the non-traditional machining to increasing fatigue strength is becoming influence as very important technology. Shot peening process is essential to ensure repeatability and uniformity on a part to part and lot to lot basis, while conforming to the applicable specifications. The shot material, size, shape and hardness as well as velocity and impact angle must be rigidity controlled to provide consistency in peening results. High velocity of the shot ball increases the impact energy, the shot peening intensity increase. Comparing with the are height for the velocity 42m/sec, the are height for 56m/sec and 70m/sec increase 33% and 48% respectively.

폴리이미드 박막의 전기적 특성에 관한 연구

김유경,박귀남,김지균,이헌용 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-

Abstract - in this study, Polymide(PI) Thin-films of MIS structure and MIM structure is deposited on Si wafer and AI Thin-films based on spincoating method. Using material is SE5291(PAA) of NISSAN CHEMICAL. Spincoating velocity is 4000[rpm] for 5[min] The uniform thin films of PI formed by curing at 150[℃] for 30[min](Soft baking) and 350[℃] for 60[min](Hard baking). Thickness of PI Thin-films is 150-170 [nm]. For Electrical characteristics of PI Thin-films measured Ⅰ-Ⅴ properties, C-V properties and f-C properties. The result analysis is like below: Ⅰ-Ⅴ characteristic using HP 4156A, C-V is HP 4280A f-C is HP 4294A

랫드에서 법제유황과 비법제유황의 독성비교

김근수, 정유리, 이남진, 홍성희, 유종훈, 정재황, 강종구 충북대학교 동물의학연구소 2006 Journal of Biomedical and Translational Research Vol.7 No.2

본문참고

정상인에서 부분적 수면박탈이 수면구조에 미치는 영향

왕성근,이정규,이충숙,최하석,유남재,정인형,이선우 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

To identify the effects of partial sleep deprivation on the sleep structure, the authors performed polysomnographic study for 9 healthy young adults. The subjects were college students, ranging in age from 20 to 25 years, without personal past or present histories of medical, neurological, or psychiatric illness and suffering from current sleep disturbance or parasomomnias. Sleep records were analyzed according to the criteria of Rechtschaffen and Kales' manual and tried paired t-test. The results were summarized as follows. 1. As for sleep parameters, total sleep time(TST), REM latency and REM duration were not changed significantly during deprivation period and recovery period compared with baseline. Sleep efficiency increased significantly during deprivation period and recovery period compaired with baseline, and sleep latency and WASO were shortened significantly during deprivation period and recovery period compared with baseline. 2. As for sleep structure, 1) The absolute value(minutes) of stage 1 decreased significantly during deprivation period and first recovery night compared with baseline, and the relative value(percentage) of stage 1 decreased significantly during deprivation period and recovery period compared with baseline. 2) The absolute value(minutes) of stage 2 decreased significantly during deprivation period compared with baseline, and the relative value(percentage) of stage 2 decreased significantly during deprivation period and first recovery night compared with baseline. 3) The absolute value(minutes) of slow wave sleep were not changed significantly during deprivation period and recovery period compared with baseline, and the relative value(percentage) of slow wave sleep increased significantly during recovery period compared with baseline. 4) The absolute value(minutes) of REM sleep decreased significantly during deprivation period compared with baseline, and the relative value(percentage) of REM sleep decreased significantly in the first deprivation night but, were not changed significantly during recovery period compared with baseline.