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물체의 3차원적 도시를 위한 입체묘사기법의 성능향상 및 그 응용
이민섭,천강욱,나종범,Lee, Min-Seop,Cheon, Gang-Uk,Ra, J.B 대한의용생체공학회 1991 의공학회지 Vol.12 No.2
Semi-transparent volume rendering technique can provide 3-D visualization well by voxel level Processing and alleviate segmentation arf, ifacts compared wish the surface rendering technique. In this Paper, we consider several new schemes which can improve she Perform ance of volume rendering. A directional interpolation method is proposed to reduce the artifact due to the anisotrophic resolution in X-ray CT data. The computation time for rendering is shortened by using the depth information of the 3-D object. And also, we reduce the quantization artifacts in the rendering by introducing the opacity-dependent sampling interval to sampling in ray-tracing.
시호지길탕(柴胡枳桔湯)이 GUINEA PIG의 기관지평활근(氣管支平滑筋)에 미치는 영향(影響)
이민섭,Lee, Min-Seop 대한한방내과학회 1992 大韓韓方內科學會誌 Vol.13 No.1
This study was carried out to investigate the effect of Shihogigiltang extract on the contractile force of the isolated guinea pig trachea smooth muscle and elucidate its mechanism. The results were obtained as follows: 1. The isolated trachea smooth muscle was suspended in the organ bath with oxygenated Kreb's Henseleit bicarbonate buffer solution at $37^{\circ}C$, and the developed tension by the drug was recorded with isometric transducer(Nacro F-60). The resting tension was approximately 0.5g. 2. The trachea smooth muscle of the isoiated guinea pig was significantly relaxed by the administration of Shihogigiltang extract. 3. ShihogigiItang significantly inhibited the contractile response of histamine 10-4 M is isolated guinea pig trachea smooth muscle. 4. The contractile response of the trachea smooth muscle of the isolated guinea pig by acetylcholine 10-4 M was significantly inhibited by Shihogigiltang extract. 5. The contractile response of the trachea smooth muscle of the isolated guinea pig by 5-hydorxytryptamine 10-4 M was significantly inhibited by Shihngigiltang extract. 6. The contractile response of the trachea smooth muscle of the isolated guinea pig by prostaglandin $F2\;{\alpha}$ 10-7 M was significantly inhibited by Shihngigiltang extract.
이민섭,Lee, Min-Seop 대한한방내과학회 1991 大韓韓方內科學會誌 Vol.12 No.1
According to the results of the studies on 23 references, the orders in the cause of Liver-Exhaustion (肺勞) were as follows ; 1) Liver-damage (肺傷) was the most abundant by occuping 26.09% (6/23) 2) Trouble-resources-prudence (勞力謀慮) and Liver-deficiency (肝虛) were the second by occuping each 21.74% (5/23). 3) Spirit-damage (神損) was 13.04% (3/23) and Anger-counter-up (怒氣逆上) was 8.70% (2/23). The Orders in the cases of Liver-exhaustion (肝勞) were as follows ; 1) Dry-dark-countenance (面目乾黑) was the most abundant by occuping 34.79% (8/23). 2) Spirit-unstableness (精神不守) was the second by occuping 30.43% (7/23) 3) Sight-unclearness (目視不明) was 20.09% (6/23) 4) Muscle relaxation not maintained by oneself (緩不能自收指) was 21.74% (5/23) Other various cases were excepted because of low frequence.
가미혈부축어탕 Hexane층의 항혈전활성과 뇌손상 보호효과
이민섭,노석선,임낙철,송호철,신순식,김성훈,Lee, Min-Seop,Roh, Seok-Sun,Lim, Rak-Cheol,Song, Ho-Chul,Shin, Soon-Shik,Kim, Sung-Hoon 한국생약학회 2000 생약학회지 Vol.31 No.4
This study was performed to investigate the antithrombotic activity and protective effect of hexane fraction of Kamihyulbuchukeotang (KHCTH) on brain injury by KCN and MCA occlusion a prescription of HCT added with Lumbricus and Notoginseng Radix. Experiemental parameters are brain ischemia by MCA occlusion assay, KCN-induced brain injury, pulmonary thrombosis and platelet aggregation assay. The results were summarized as follows; 1. KHCTH extracts significantly inhibited the duration of KCN-induced coma (67%) and mortality (80%). 2. KHCTH extracts significantly suppressed brain ischemic area and edema following MCA occlusion and protected neuron cells as compared with control data. 3. KHCTH extracts inhibited pulmonary thrombosis induced by collagen and epinephrine. 4. KHCTH extracts inhibited platelet aggregation induced by collagen, ADP as agonist up to 76.9% and 32.3% respectivey at 1 mg/ml more effective than water extract of KHCT These data suggested that KHCTH could be applied as the protector of brain ischemia and injury and antithrombotic agent.
수평과 수직 블록을 이용한 MPEG-1 비디오 장면전환 검출
이민섭,안병철,Lee, Min-Seop,An, Byeong-Cheol 한국정보처리학회 2000 정보처리학회논문지 Vol.7 No.2
The content-based information retrieval for a multimedia database uses feature information extracted from the compressed videos. This paper presents an effective method to detect scene changes from compressed videos. Scene changes are detected with DC values of DCT coefficients in MPEG-1 encoded video sequences. Instead of decoding full frames. partial macroblocks of each frame, horizontal and vertical macroblocks, are decoded to detect scene changes. This method detects abrupt scene changes by decoding minimal number of blocks and saves a lot of computation time. The performance of the proposed algorithm is analyzed based on the precision and the recall. The experimental results show the effectiveness in computation time and detection rate to detect scene changes of various MPEG-1 video streams.
회화나무(Sophora japonica)를 가해하는 줄마디가지나방(Chiasmia cinerearia (Bremer et Grey))의 발생 및 생태적 특성
권건형,이민섭,엄훈식,김용훈,권영대,Kwon, Gun-Hyung,Lee, Min-Seop,Eom, Hoon-Sik,Kim, Yong-Hun,Kwon, Young-Dae 한국응용곤충학회 2016 한국응용곤충학회지 Vol.55 No.1
자나방과(Geometridae), 가지나방아과(Ennominae)에 속하는 줄마디가지나방(Chiasmia cinerearia)은 중부지방의 회화나무 가로수 및 조경수를 가해하는 대표적인 수목 해충이다. 본 연구의 결과 줄마디가지나방은 주로 잎 위에 250~300개의 알을 무더기로 산란하였으며, 유충은 총 5령기를 거쳐 용화되었다. 성충은 5월 초순과 7월 말경에 2회 우화하였으며, 1세대 경과일수는 약 48일로 조사되었다. 유충의 몸길이는 25~30 mm 정도이며 연녹색을 띠고 복부의 옆선은 황색이었다. 성충의 날개편 길이는 30~35 mm 정도이며 회갈색을 띠며 앞날개 외횡선을 중심으로 4각형의 무늬가 무리지어 있는 것이 특징이다. Chiasmia cinerearia (Bremer et Grey) belonging to the subfamily Ennominae(Lepidoptera: Geometridae) is a new forestry pest attacking to Sophora japonica in Gyeonggi province. Chiasmia cinerearia oviposited about 250~300 eggs per female on leaves. Larva had five instar stages. Adults emerged twice a year in early May and late July. The period of one generation was about 48 days. Body length of larvae was 25~30 mm and body color was light green with dark yellow lateral lines in abdomen. The wingspan of adults was 30 to 35 mm in length. The color of forewings was greyish brown with quadrilateral patterns on outer lines.
장희수(Jang, Hee-Su),이민섭(Lee, Min-Seop),홍병곤(Hong, Byung-Gon),황재훈(Hwang, Jea-Hoon) 한국도시설계학회 2013 도시설계 : 한국도시설계학회지 Vol.14 No.4
본 연구는 오픈스페이스와 공공시설물을 대상으로 경관구성요소를 분류하고 세부요소를 유형화한 후 연령에 중점을 두어 이용자들이 인식하는지 알아보고자 하였다. 모든 연령층이 공공시설물보다 오픈스페이스를 중요하게 인식하였다. 10대는 오픈스페이스의 세부요소 중에서 휴식공간을 가장 중요한 요소로 인식하며, 공공시설물의 세부요소 중에서 신호등을 가장 중요한 요소로 인식하였다. 20대는 오픈스페이스의 세부요소로 보행도로를 중요한 요소로 인식하고 있으며, 공공시설물의 세부요소 중에서 벤치를 중요하게 인식하였다. 30대는 20대와 마찬가지로 오픈스페이스의 세부요소로 보행도로를 중요하게 인식함과 동시에 공공시설물의 세부요소로 파고라를 중요하게 인식하고 있다. 40대는 오픈스페이스의 세부요소를 녹지공간과 휴식공간을 동일하게 인식하는 것으로 분석되었다. 또한 공공시설물의 가로수를 가장 중요한 세부요소로 인식하고 있다. 마지막으로 50대 이상은 오픈스페이스의 녹지공간을 가장 중요한 세부요소로 인식하며 공공시설물의 세부요소로 가로수를 중요한 요소로 인식하고 있는 것으로 나타났다. This study is to reveal how differently the various age groups perceive categorized open spaces and public facilities. For this purpose, the landscape factors were established based on the results derived from the theoretical study and the field survey for selected case. The final results from survey demonstrated that across all age groups, the open space landscapes were perceived as the more important type than public facilities. Meanwhile, unlike respondents in the younger age groups who had prioritizes accessibility, those in their forties and fifties perceived pleasantness to be of greater importance, and regarded green spaces and rest areas to be equally important specific components. As different age groups thus have varying perceptions, henceforth when dealing with landscapes it will be necessary to be more prudent and aware of social responses, in particular to take close attention to potential variances in responses according to the variety of age groups. This study illuminates the importance of the impact variable according to age groups on landscape perception, and may be utilized as important foundational data for planning and designing landscapes.