경부에 발생한 침습성 지장종의 치험례

조은영,하종운,김영빈,정윤심 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.2

Lipomas make up 4∼5% of all benign tumors in the body and are most often located on shoulders and backs. Neck lipomas are often developed in the subcutaneous tissues of the posterior neck, Most lipomas have slow growth rate and the recurrence is very rare after surgical excision because of well-defined border. But lipoma originated from muscles(intramuscular and intermuscular lipoma), so called infiltrating lipoma, has ill-defined border and little or no evidence of encapsulation. Histologically the feature of infiltrating lipoma is distinctive. There is a consistent infiltration with dissociation of the surrounding muscle fibers. The overall recurrence rate is less than 5%, but rises to 62.5% when deep infiltrating lipomas are considered separately. Thus infiltrating lipoma is best excised with a margin of normal muscle to avoid recurrence. Its location in the head and neck is uncommon. 18 cases of infiltrating lipoma in the head and neck has been reported to date. Here we report a case of infiltrating lipoma that arises in the head and neck muscle with a review of the literature on the subject.

USB I/O를 사용하는 산업용 제어기의 설계 및 제작

조규상,이종운 동양대학교 산업기술연구소 2001 東洋大學校 産業技術硏究所 論文集 Vol.3 No.1

PLC or PC I/O cards those are generally used in an industrial machines have some weak points. In this paper, to overcome these weak points, an industrial I/O controller using USB bus is designed and implemented and it has the features, such as, a shortened wiring, an ease of use, and a competitive price. Cypress' Ezusb chip, USB embeded microprocessor, is used to develop its hardware. Driver program for Widows are designed by using WDM(Windows Driver Model), And a library programs and sample application software are developed for user's convenience using Visual C++.

고속도강을 이용한 CFRP 복합재료의 드릴가공 특성

조규재,박종남,정용운 朝鮮大學校 機械技術硏究所 2005 機械技術硏究 Vol.8 No.1

복합재료는 각 종 기계부품, 우주항공산업, 자동차의 내장재와 구조재, 건축구조물, 선박 재료, 스포츠용품 등 다방면에서 유용하게 사용되어지고 있다. 복합재료는 여러 가지의 대체 재료로서 타 산업에 비하여 활용의 가치가 높다. 그러나 기계가공분야에서는 가공의 어려움으로 인하여 활용도가 미흡한 상태이다. 따라서 본 논문에서는 CFRP를 수직형 머시닝센터에서 고속도강 드렬로 가공한 후 흘 가공 입 · 출구부에서 표면이 고르지 못함을 확인하였으며, 가공을 할수록 유동형의 긴 칩에서 분진형태로 변하는 칩의 형상 등을 관찰하였다. Composite materials are widely used in all kinds of machine parts, aerospace industries, internal and structural materials of cars, building structures, ship materials, sporting goods, and others. It is worth while to use the composite materials as various substitutions compared with others. But it is limited to use them in the field of the mechanical processing because of the difficulties in cutting. Thus it is proved that the surface roughness is in and out of the hole processing after cutting the CFRP with HSS drilling in the vertical machining center. And it is observed that the more it is processed, the more the fluid long chip is changed into the powdered chip.

Osteotome Sinus Floor Elevation Procedure를 이용한 임프란트 매식

송종운,조용기,박홍주,김영운,오희균,유선열 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.2

Maxillary sinus has an anatomic limitation to bone support available for dental implant. When there is less than 10㎜ of bone remaining between the upper alveolar ridge crest and the maxillary sinus floor, bone augmentation should be considered. In 1994, Summers reported two sinus floor elevation techniques of limmediate implant insertion, using osteotomes, for patients who have at least 5㎜ of bone remaining between the alveolar ridge crest and the maxillary sinus floor. One technique is osteotome sinus floor elevation (OSFE) procedure in which uses osteotomes to elevate the sinus floor. The other is bone-added OSFE (BAOSFE) procedure in which bone graft is added into osteotomy site. Both procedures conserve all of the remaining bone and selectively displace it upward, thereby raising sinus floor. This study was aimed to evaluate the long-term success rate of implants which had been placed by osteotome sinus floor elevation procedure. Between February 1996 and June 1998, 10 implants were placed using OSFE or BAOSFE procedures in 6 patients who had at least 6㎜ of bone remaining between the alveolar ridge crest and the sinus floor. OSFE procedures were performed in patiens, 2∼4㎜ sinus floor elevation was needed, whereas BAOSFE procedures were done in patines, more than 4㎜ sinus floor elevation was needed. During the mean follow-up period of 4 years 4 months (3 years 6 months ∼ 5 years 9 months), no implant was failed and all patients showed good functional results. OSFE and BAOSFE procedures seemed technically easier and less invasive compared to conventional sinus lift procedure. And both procedure have good success rate.

경남 일부 지역 간흡충 감염 주민에 대한 혈청 생화학검사 소견 분석

손운목,조영표,김기진,김미영,이종욱,박도흠 한국건강관리협회 1999 건협 Report Vol.2 No.-

운동부하 흰쥐에서 포도당 증합체가 심근 당원에 미치는 영향

이석강,조성현,김용운,박덕일,김종연,장용찬 대한스포츠의학회 1994 대한스포츠의학회지 Vol.12 No.1

운동부하전 섭취한 탄수화물이 운동흰쥐의 심근 및 골격근이 당원량에 미치는 영향을 측정하여 심근과 골격근의 대사적 차이점의 일단을 연구한 본 논문의 결과는 다음과 같다. 심근과 골격근 당원량(mg/ g wet tissue, 이하 단위 동일)은 정상군에서 심근 2.62±0.51로서 골격근의 3.37±0.58보다 낮았다(p<0.01). 심근 당원량은 정상군이 2.62±0.51이었다. 운동 30분에서 대조군은 정상군의 63%수준으로 감소하였으며(p<0.01), 탄수화물섭취군은 정상군의 86 및 90%수준으로 감소하였으나 통계적으로 유의한 차이는 없었다. 탄수화물 섭취군의 당원량은 대조군의 142 및 137%정도로 양군 모두 대조군보다 유의하게(p<0.01) 높았다. 운동 60분에는 대조군은 운동30분의 78%(정상군의 49%)수준으로 감소하였으며(p<0.05) 탄수화물섭취군은 포도당중합체 및 포도당섭취군에서 각각 운동 30분에 비하여 72(p<0.01, 정상군의 62%), 81%정도(p<0.05, 정상군의 73%)로 감소하였다. 포도당 섭취군의 당원량은 대조군의 147% 정도로 대조군보다 유의하게(p<0.01) 높았다. 운동 120분에서 대조군은 운동 60분에 비하여 63%(정상군의 33%) 수준으로 감소하였으며 (p<0.01) 포도당섭취군은 운동 60분의 69%(정상군의 50%)수준으로 유의하게 감소하였으나, 포도당 중합체 섭취군은 차이가 없었다. 탄수화물 섭취군의 당원량은 포도당 중합체 및 포도당섭취군에서 각각 대조군의 202 및 162% 정도로 양군 모두 대조군보다 유의하게(p<0.01)높았다. 골격근 당원량은 정상군이 3.37±0.58 이었다. 운동 30분에서 대조군은 정상군의 69% 수준으로 감소하였으며(p<0.01) 탄수화물섭취군은 포도당 중합체 및 포도당섭취군에서 각각 정상군의 85 및 88% 수준으로 감소하였으나 통계적으로 유의한 차이는 없었다. 탄수화물 섭취군의 당원량은 포도당 중합체 및 포도당섭취군에서 각각 대조군의 125 및 129% 정도로 양군 모두 대조군보다 유의하게(p<0.05) 높았다. 운동 60분에는 대조군은 운동 30분의 77%(정상군의 53%) 수준으로 감소하였으며(p<0.05)탄수화물섭취군은 포도당중합체 및 포도당섭취군에서 각각 30분에 비하여 93(정상군의 80%), 89(정상군의 78%) %정도로 감소하였으나 통계적으로 유의하지는 않았다. 포도당중합체 및 포도당 섭취군의 당원량은 각각 대조군의 152 및 149% 정도로 대조군보다 유의하게 (p<0.001) 많았다. 운동 120분에서 대조군은 운동 60분에 비하여 50%(정상군의 26%) 수준으로 감소하였으며(p<0.001) 포도당 섭취군은 운동 60분의 75%(정상군의 58%)수준으로 유의하게(p<0.05) 감소하였으나 포도당 중합체 섭취군은 대조군의 84%(정상군의 67%)정도로 감소하는 경향을 보였다. 탄수화물 섭취군의 당원량은 포도당 중합체 및 포도당섭취군에서 각각 대조군우ㅢ 255 및 221% 정도로 양군 모두 대조군보다 유의하게(p<0.001) 높았다. 이상의 결과로 미루어 보아 심근과 골격근 간의 생리, 생화학적 특성의 차이에도 불구하고 탄수화물의 섭취후 중등도 정도의 달리기 운동시 근 당원의 함량에 미치는 영향은 정도의 차이는 있으나 같은 경향을 나타내었으며, 골격근에서 심근보다 더 많은 근 당원 절감효과를 나타내었다. 또한 운동전 탄수화물의 섭취시 이러한 근 당원 절감 효과로 장시간의 운동시 심근 및 골격근 당원의 고갈 지연으로 운동수행능력의 증가가 기대되며, 특히 포도당 보다는 포도당 중합체의 섭취시 효과가 더 크리라고 사료된다. The purpose of this study was to investigate the effect of glucose and glucose plymer ingestion on the concentration of the cardiac muscle glycogen at 30, 60 and 12 minutes of the treadmill running in rats. Rats were randomly assinged to normal, control, and carbohydrate groups. Carbohydrate group was divided into glucose, and glucose polymer ingested rats. The experiment was carried out after overnight fasting. Rats were administrated either water (control) of carbohydrates of formulated glucose(6%), and glucose polymer(6%) via polyethylene tube to the stomaach before treadmill run. Exercise was loaded by a treadmill run at the speed of I ㎞/hr for 30, 60, and 120 minutes. The results of experiment were as follows: Glycogen content of the cardiac muscle was lower than that of the skeletal muscle (plantaris) in normal rats. Glycogen content of the cardiac muscle was decreased in proportion to the exercise time compared to normal in control and carbobydrates ingested rats. It decreased in control, glucose, and glucose polymer compared to normal rats in decreasing order at 120 minutes treadmill running (% change of glycogen content of control, glucose, and glucose polymer compared to normal rats were 33, 50, and 63% in the cardiac muscle at 120 minutes of treadmill running respectively). Glycogen content of the skeletal muscle was decreased in proportion to the exercise time compared to normal in control and corbohydrates ingested rats. It decreased in control, glucose, and glucose polymer compared to normal rats in ecreasing order 120 minutes treadmill running(% change of glycogen content of control, glucose, and glucose polymer compared to normal were 26, 58, and 67% in the cardiac muscle at 120 minutes of treadmill running respectively). Change of the glycogen content of the cardiac and the skeletal muscle during treadmill running after glucose and glucose polymer ingestion showed that both muscles had tendency to decrease in proportion to exercise time similarly in control and carbohydrates ingested rats. Decreasing rate of glycogen content of cardiac and skeletal muscles during treadmill running compared to normal in carbohydrates ingested rats was lower than that of control. From these results, it is suggested glycogen content of cardiac and skeletal muscles had tendency to decrease in proportion to exercise time similarly in control and carbohydrate ingested rats. Glycogen content of cardiac and skeletal muscles in carbohydrate singested rats less decreased than that of control during treadmill running compared to normal. Glucose polymer of the carbohydrates ingested rats in considered as the most effective for glycogen sparing according to exercise time in both muscles. Therefore, intake of carbohydrate, especially glucose polymer, before exercise may be increase performance of the prolonged moderate exercise.

잡견에서 Rapid Atrial Pacing에 의한 심방의 전기적 재현성과 이의 회복

남기병,김동운,차성일,이석재,홍종면,임승운,나기정,조명찬 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.6

저탁도시 PAC와 Ca-PAX의 입자제거 및 슬러지 탈수성 비교

심유섭,유명진,조희경,이상수,곽종운 대한상하수도학회 2002 상하수도학회지 Vol.16 No.4

This study was accomplished to evaluate the characteristics of particle removal and sludge dewatering and to find out the optimal condition of coagulation depending on the dosage of different coagulants (PAC, Ca-PAX) in low turbidity water. The experiments were carried out at a pilot plant of conventional rapid sand filtration system using artificial raw water. There was no large difference in the removal efficiencies of turbidity and total particle counts for both coagulants. However, Ca-PAX was required less than PAC to obtain the same efficiency of removal, and the initial head loss in a filter increased more fastly in case of PAC. The results on the evaluation of sludge from settling tank indicated that specific resistance of sludge was decreased inversely to the dose of both coagulant and specific resistance of Ca-PAX sludge was lower than that of PAC, therefore dewatering of sludge in case of Ca-PAX was better.

자연정화공법에 의한 소형 하수처리장치 개발을 위한 최적 깊이 및 호기ㆍ협기 비율

서동철,박미령,곽내운,황하나,이홍재,조주식,허종수 한국환경농학회 2006 한국환경농학회지 Vol.25 No.1

Flavimarina flava sp. nov., isolated from Salicornia herbacea

Cho, Eui-Sang,Cha, In-Tae,Park, Jung-Min,Choi, Hak-Jong,Lee, Jong Hun,Roh, Seong Woon,Cho, Eun-Ah,Kweon, Mee-Hyang,Nam, Young-Do,Seo, Myung-Ji Microbiology Society 2017 International journal of systematic and evolutiona Vol.67 No.10

<P>A Gram-stain-negative, motile-by-gliding, aerobic, non-spore-forming, rod-shaped and yellow-pigmented bacterium was isolated from Salicornia herbacea in the Yellow Sea and designated as strain MBLN091(T). It belonged to the family Flavobacteriaceae. The 16S rRNA gene sequence of this isolated strain was similar to that of Flavimarina pacifica IDSW-73(T) with 94.8% similarity, and with 92.3-92.8 % similarities to those of other closely related species of the genus Leeuwenhoekiella. The similarities of the RNA polymerase subunit B gene between this strain and F. pacifica KCTC 32466(T) and Leeuwenhoekiella marinoflava DSM 3653(T) were 80.5 and 80.2 %, respectively. Growth of strain MBLN091(T) was observed in the presence of 0.5-15.0% (w/v) NaCl at 4-35 degrees C and pH 6.0-8.0, with optimal growth in the presence of 2.5-5.0% (w/v) NaCl at 20-25 degrees C and pH 7.0. This isolate was able to hydrolyse gelatin. The only respiratory quinone was MK-6. The major polar lipids were phosphatidylethanolamine, an unidentified aminolipid and two unidentified lipids. Major fatty acids of the isolate were iso-C-15:0, summed feature 3 (C-16:1 omega 7c and/or C-16:1 omega 6c), iso-C-17:0 3-OH and iso-C-15:1 G. The genomic DNA G+C content was 39.6 mol%. The physiological features were closely related to F. pacifica. Therefore, strain MBLN091(T) is considered to represent a novel species within the genus Flavimarina, for which the name Flavimarina flava sp. nov. is proposed. The type strain is MBLN091(T) (=KCTC 52527(T)=JCM 31731(T)).</P>