황해 동남 해역의 수괴지표성 요각류 및 모악류의 분포와 수괴특성

박주석,이삼석,강영실,이병돈,허성회 동의대학교 기초과학연구소 1993 基礎科學硏究論文集 Vol.3 No.1

Distribution of indicator species of copepods and chaetognaths were studied as an indicator species of water mass in the southeastern area of the Yellow Sea. Undinula darwini, Lucicutia flavicornis, Pleuromamma gracilis, Euchaeta resselli, Euchaeta plana and Sagitta enflata were found to be reliable indicator species for determining warm water mass. Of these species, E. plana and E. russelli have a weak tolerance on the low temperature. Sagitta crassa was indicator species of neritic waters: Sagitta bedoti was that of mixing waters. Centropages agdominalis represented neritic cold waters. In February U. darwini, L. flavicornis, P. gracilis, E. russelli, E. plana and S. enflata occurred in the western waters of Cheju-Do where warm waters over 14℃ occupied. Centropages abdominalis occurred in the northern area beyond Chindo with water temperature less than 10℃. E. plana, E. russelli and S. bedoti were found at the regions between Cheju-Do and Chindo where the water temperature was 12∼14℃ corresponding to the mixing waters. Based on cluster analysis and T-S diagram in February three different water masses were identified from the south to the north. In August, water masses were analyzed at two different layers, 0∼20m and 20m∼bottom layers, separated by thermocline depth. In 0∼20m layer, E plana and E. russelli were found from the western waters of Cheju-Do to Daehuksando. In 20m∼bottom layer, E. russelli and E. plana occurred at the northwestern waters of Cheju-Do with the water temperature warmer than 12℃. C. abdominalis was found at the northern area beyond Chindo. Based on the cluster analysis and T-S diagram in August three different water masses at 0∼20m and 20m∼bottom layers were identified from the coast to the offshore. C. abdominalis was found at the adjacent water of Chindo at 0∼20m layer and the northern area beyond Chindo at 20m∼bottom layer. This fact suggested that the cold water mass existed at the adjacent waters of Chindo in summer.

一部 農村地域 在宅老人들의 日常生活 活動 및 憂鬱程度

이영석(Yeung Seuk Lee),천병렬(Byung Yeol Chun),김상순(Sang Soon Kim),이삼순(Sam Soon Lee) 한국농촌의학 지역보건학회 1996 농촌의학·지역보건 Vol.21 No.2

T 형 만성 림프구성 백혈병에 동반된 순수 적혈구 형성부전증 1 예

곽재용,이홍,이미경,장재호,임창열,최삼임,송현모,최병문,박상석,이성중,조용곤,김윤정,이혜수 대한내과학회 1997 대한내과학회지 Vol.52 No.2

Pure red cell aplasia(PRCA) is characterized by anemia, absence of reticulocytes in the peripherial blood and selective erythroid hypoplasia in the bone marrow. Acquired PRCA is often associated with thymoma but may also occur in many diverse conditions, such as chromic lymphocytic leukemia, systemic lupus erythematosus, autoimmune disorders, T gamma lymphocytosis, acquired hypogammaglobulinemia, acquired immunodeficiency syndrome. Recently we experienced a case of T cell chronic lymphocytic leukemia associated with pure red cell aplasia. A 65-year-old man was presented with severe anemia. absolute reticulocytopenia, hepatosplenomegaly and lymphocytosis(T cell marker' CD2, CD7 positive). Bone marrow findings showed a marked decrease in erythroid precursors and normal maturations of granulocytic and megakaryocytic series, which were consistent with pure red cell aplasia. So we report this case with a review of the literature.

한국 연안의 요각류 중 Acartia clausi 로 분류되어지고 있는 종에 대한 재검정 및 분포에 대한 연구

이삼석,강영실 한국수산학회 1990 한국수산과학회지 Vol.23 No.5

한국 연안에서 보고되고 있는 Acartia clausi를 부산 연안역에서 채집된 종으로써 재검정하였다. 그 결과 지금까지 A. clausi로 분류되어졌던 종이 Acartia omorii이거나 A. hudsonica임이 밝혀졌다. 수컷의 경우, 제5각 오른쪽 세번째 마디절 내측에 있는 융기부의 형태에서 두종간의 뚜렷한 차이를 찾을 수 있다. A. omorii는 융기부의 아랫부분이 만곡되어 있으며, A. hudsonica는 원형으로 돌출되어 있다. 암컷의 경우, 생식절의 폭에 대한 길이의 비가 두종간 중요한 분류 형질이 된다. 또한, A. omorii의 경우, 後體部의 두번째 마디절 등쪽 끝에 1∼3개의 소극을 가진 것이 특징이다. 한국 연안 8개의 지점에서 분포를 파악해 본 결과 A. omorii는 모든 조사지점에서 출현하였고, A. hudsonica는 부산 연안역에서만 출현하였다. A neritic copepod previously known as Acartia clausi Giesbrecht in the Korean waters was taxonomically re-examined, and the species has been identified as Acartia omorii and Acartia hudsonica. These species are easily discriminated by the morphology of the 3rd segment of the 5th right leg in male and by the shape of the genital segment in female. A. omorii occurs along the coast of Korea, and A. hudsonica is restricted to the brackish waters of Pusan area.

적조와편모조 Scrippsiella trochoidea 군증식에 미치는 환경요인과 지방산 조성

이원재,김학균,이삼석,임월애 한국수산학회 1993 한국수산과학회지 Vol.26 No.2

춘계 마산만에서 적조현상을 일으키는 해산 와편모조류인 S. trochoidea의 cyst를 저니에서 채취, 분리, 발아시켰다. 환경요인에 대한 군증식속도의 실험 결과 수온 20℃, 염분 30‰, 조도 4,0001ux에서 군증식 속도가 빨랐다. 그리고 증식 촉진 유기물질에 대한 실험으로서 규조류(Skeletorema costatum) 배양배지 여과액과 저질추출물질에 대한 실험결과 각각 0.25㎖/㎖를 첨가하였을 때 각각 군증식속도가 빠르게 나타났다. 동종의 지방산을 분석한 결과 C_(16:0)이 가장 많고 C_(18:0), C_(18:1), C_(22:0) 그리고 C_(22:1) 등의 순으로 분리되었다. The cyst of Scrippsiella trochoidea from the surface mud in Masan Bay was germinated in the incubator for the culture. This species was one of dinoflagellates responsible for the early spring bloom in the southern coastal water of Korea. The culture experiments were carried out under the various gradients of environmental factors to know their effects on the population growth of this dinoflagellate. With respect to the effects of environmental factors on the growth, it was proved that the maximum cell growth was occurred at 4,000 lux of light intensity, salinity 30‰ and temperature 20℃. When 0.25㎖/㎖ of the filtrates of Skeletonema costatum culture medium and the supernatants of soil extracts were added to growth medium as organic growth stimulants, both materials enhanced the population growth. In the fatty acid composition of S. trochoidea, C_(16:0) was the major component, and C_(18:0), C_(18:1), C_(22:0) and C_(22:1) were a minor components.

하계(夏季) Alaska만(灣)과 Bering해(海)의 Copepods의 분포조성(分布組成)

이삼석,Lee, Sam Seuk 한국해양학회 1980 韓國海洋學會誌 Vol.15 No.1

The materials were obtained in the eastern Gulf of Alaska and the south- eastern Bering Sea during the cruise of the research vessel, Ohdae San, from July to October 1978. A total of 76 samples were taken by NORPAC net from a depth of 200 meters or less in coastal areas. 1. The surface water temperature in the coastal waters, varing from 9 to 10$^{\circ}C$, was lower than that in offshore waters which varied from 10 to 12.9$^{\circ}C$ in the eastern Gulf of Alaska. Thermocline was formed in the 30∼50 meter layer. Salinity of the coastal waters of Kenai Peninsula and Kodiak was 30 which was slightly lower than that of offshore. 2. The water temperature of the surface layer down to 30 meters varied from 7 to 10$^{\circ}C$ and from 1 to 9$^{\circ}C$ in the layer below 30 meters in the south-eastern Bering Sea. Meandering thermal front spread from the Alaska Peninsula to St. Matthew Island by way of St. Paul, and a thermocline was found at the 30∼50 meter layer Salinity ranged from 31.0 to 33.0 and that of northern and coastal waters was little lower than that of offshore. 3. Zooplankton biomass fluctuated from 0.1 to 23.6cc/10㎥ in the eastern Gulf of Alaska and 2.0 to 26.1cc/10㎥ in the south-eastern Bering Sea. Plankton was rich in the following areas, the inshore Kodiak waters, the northern Bering Sea, the Coastal waters and waters adjacent to Alutian islands however, poor in the central Bering Sea. In general, the south-eastern Bering Sea has a higher concentration of plankton volume than the eastern Gulf of Alaska. 4. Twenty three species representing 17 genera of copepods were identified from the samples. These were mostly composed of the cold water species, such as Pseudocalanus minutus, Acartia longiremis, Metridia lucens and Eucalanus bungii var. bungii. 5. The cold oceanic species were composed of Calanus cristatus, C.plumchrus, Metridia lucens, Eucalanus bungii var. bungii and Scolecithricella minor. The cold neritic species were Centropages abdominalis, Pseudocalanus minutus, Acartia longiremis, Eurytemora herdmanii, Pontella pulvinata, P. longipedata and Tortanus discaudatus. On the other hand, the warm oceanic species were Calanus tenuicornis and Oithona plumifera. The cosmopolitan species were Calanus finmarchicus and Oithona similis. 6. It was suggested that the cold oceanic species, Eucalanus bungii var. bungii and Metridia lucens in the south-eastern Bering Sea can be recommended as a valuable indicator species for finding the fishing grounds of demersal fish such as pollock and yellowfin sole in this area.

ECG를 이용한 심박수 자동측정기기 개발에 관한 실험적 연구

차샘(Cha, Sam),조은석(Cho, Eun Seuk),이기영(Lee, Ki Young) 한국정보전자통신기술학회 2010 한국정보전자통신기술학회논문지 Vol.3 No.1

본 연구에서는 ECG를 통하여 심박수를 R-R 간격을 이용한 방법으로 자동 추출하는 방법에 관하여 연구하였다. 육안으로 측정한 심박수를 기준으로, 2차 미분을 이용하여 심박수를 추출하는 방법, 자기상관함수를 이용하여 심박수를 추출하는 방법을 비교하여 고찰하였다. 실험 데이터는 MIT/BIH database를 이용하였다. 이를 바탕으로 직접 ECG 측정기를 제작하여 심박수를 자동 측정하여 보고 기존의 환자감시장치(ICU)와 비교하여 보았다. In this study, heart rate through ECG R-R intervals using the methods about how to automatically extract studied. Heart rate as measured by the naked eye, using the 2-order differential equations to extract heart rate, using self-correlation function to extract the heart rate was compared contemplate. To verify its efficacy and validity in practical applications, these method has been applied to MIT/BIH database. Based on this, making a ECG meter automatic heart rate measurements, and our ECG meter was compared with the existing ICU.

MMS 성능 시험시설 구축을 통한 MMS 종류별 비교실험 결과

오윤석(Yoon-Seuk Oh),권영삼(Young-Sam Kwon),이태경(Tae-Kyeong Lee) 대한공간정보학회 2020 한국공간정보학회 학술대회 Vol.2020 No.11

실리콘 기판상에서 나선형 인덕터의 최적설계 및 제작

서종삼(Jong-Sam Seo),박종욱(Jong-Wook Park),이성희(Seung-Hee Lee),김영석(Yeong-seuk Kim) 대한전자공학회 1998 대한전자공학회 학술대회 Vol.1998 No.11

Matlab과 USB DAQ 장치를 이용한 Rapid Control Prototyping System 개발

이영삼(Young-Sam Lee),양지혁(Ji-Hyuk Yang),김석윤(Seuk-Yun Kim),김원식(Won-Sik Kim),권오규(Oh-Kyu Kwon) 제어로봇시스템학회 2012 제어·로봇·시스템학회 논문지 Vol.18 No.10

In this paper, we propose a new and cost-effective RCP (Rapid Control Prototyping) system based on Matlab/Simulink and a DAQ (Data Acquisition) unit with the high speed USB communication interface. The proposed RCP system has a feature that a computer on which Simulink is running acts as a realtime controller and a DAQ unit performs data acquisition, transmission of the data to and from a computer, and the application of control data received from the computer. For its implementation, we develop 10 communication blocks each of which is constructed by using S-function. In order to increase the data communication speed and thus to reduce the sampling period of the overall control system, we propose to use a batch transfer strategy through the USB interface. The proposed RCP system has several advantages over existing methods such as good maintainability, portability due to the USB interface, low cost, and no necessity for C-code generation even though it can only be applied to control systems with moderate sampling rates. It is expected that the proposed RCP system can be useful in teaching control-related topics to undergraduate and graduate students.