수부 주상골 요부의 전위골절에 대한 수술적 치료

조용만,이영기,강흥식,리건영,이천동,오상수 대한골절학회 1997 대한골절학회지 Vol.10 No.1

The authors surveyed the clinical study of 17cases of scaphoid fractures from March 1989 to September 1994 with minimal I year follow up at Department of Orthopedic Surgery, Lee-Rha general Hospital. The following conclusions were obtained through clinical survey. l. Of all l 7 cases, they were l3 males and 4 females; Among the 13 males, 10 cases were aged between 20 and 39 years. forming 56.8% of all. 2. All 17 cases were treated by open reduction. Unions were obtained at average l l.5 weeks in 7 cases treated with Herbert screw fixation and l 2 weeks in l 0 cases treated with K-wire fixation. 3. Two of ten K-wire treated cases resulted in delayed union, one of seven Herbert screw treated cases resulted in delayed union. 4. Unions were obtained at average 20 weeks in 3 cases of delayed union. We concluded that open reduction and K-wire fixation were recomanded for the compatible treatment method of displaced waist fracture of scaphoid.

경골과 골절에 대한 수술적 치료

조용만,박명식,강흥식,이건영,이천동,조규철 대한골절학회 1997 대한골절학회지 Vol.10 No.1

The tibial condylar fracture which involves articular surface of the proximal tibia is common in pedestrian injury of the traffic accident and often produces some disability of the knee joint because of the frequent association with ligamentous and meniscal injuries. Methods of treatment in fracture of the tibial condylas has long been a controversial problems. Recently most authors agree that the method of treatment has to be selected in each individual case and anatomical reduction of fracture and early knee motion are recommended but unsatisfactory results has been reported as between 20% and 40%. The authors analyzed 38 cases of the tibial condylar fractures, which were treated at the orthopedic department of the Lee-Rha general Hospital from 1990 to l994, regarding its type. treatment and results. The results of this study were as follows. l. According to Schatzker classification: the most common fracture was type II. 2. According to Blokker's criteria, 28 cases showed satisfactory results( 74% ). 3. Postoperatively, early knee joint exercise like alternatively applling 90( knee flexion and extension splint were very important factors for good results.

KF114와 KB108 원료가공업의 연기증 Nicotine 및 Tar 함량의 변화

이철희,임흥빈,신주식,석영선 충북대학교 연초연구소 2004 煙草硏究 Vol.19 No.-

궐련담배 연기 중 Tar와 Nicotine 함량은 대부분의 국가에서 담배 포갑지에 표시하도록 규정하고 있으며 우리나라에서도 2003년부터 시행하고 있다. 그리하여 궐련담배 제품의 설정목표에 따라 엽배합의 방안을 강구하고자 우리나라에서 생산하고 있는 황색종과 버어리종의 주 품종인 KF114와 KB108의 원료 가공엽을 김천원료공장과 남원료공장에서 착엽위치 및 등급별로 채취하여 연기 중 Nicotine, Tar 및 CO 함량을 조사하였으며, 그 결과를 요약하면 다음과 같다. 1. 원료엽 중 니코틴 함량은 황색종 KF114에 비하여 버어리종 KB108이 높고, 본엽과 상엽에서는 등급이 낮을수록 함량이 높고, 중엽과 하엽에서는 등급이 낮을수록 함량이 낮았다. 2. 황색종 KF114는 궐련담배 1개비 당 중량이 본엽, 중엽, 상엽, 하엽 순으로 무거웠고, 엽위별 등급간에는 등급이 높을수록 무거웠다. 연소시간과 흡연회수는 본엽, 상엽, 중엽, 하엽 순으로 길고 많았다. 3. 버어리종 KB108은 궐련담배 1개비 당 중량이 상엽, 본엽, 중엽, 하엽 순으로 무거웠고, 엽위별 등급간에는 등급이 높을수록 무거웠다. 연소시간은 상엽, 본엽, 중엽, 하엽 순으로 길었으며, 중엽과 하엽에서는 등급이 높을수록 본엽과 상엽에서는 등급이 낮을수록 길었다.4. 황색종 KF114 원료 가공엽의 연기 중 니코틴과 타르 함량은 본엽에서는 등급이 낮을수록 높고, 중엽과 하엽에서는 등급이 높을수록 높은 값을 나타냈다. CO 함량은 본엽, 중엽, 상엽, 하엽순으로 많았고, 등급간 차이는 니코틴과 타르 함량에 대한 등급간 차이보다 적었다. 5. 버어리종 KB108 원료 가공엽의 연기 중 니코틴과 타르 함량은 상엽과 본엽에서는 등급이 낮을수록 높고, 중엽과 하엽에서는 등급이 높을수록 높은 값을 나타냈다. CO의 함량은 상엽, 본엽, 중엽, 하엽 순으로 높았고, 엽위 별 등급간에 차이가 없었다. 6. 잎담배 종류 및 가공엽의 등급에 따라 nicotine/tar 및 Co/tar 비율에 차이가 있는 것을 알 수 있으며, 엽위가 낮을수록 비율도 감소하였다. 7. 버어리종 KB108는 흡연회수, 니코틴, 타르및 CO가 각각 정의 상관관계가 인정되었으나, 황색종 KF114에서는 CO와 니코틴, CO와 타르 간에는 상관관계가 없었다. In most countries, nicotine and tar contents of cigarette smoke should be represented on the cigarette pack by law. It has been carrying out in Korea from 2003. In order to control those contents, It was tested the contents of tar, nicotine, carbon monoxide (CO) of smoke components and puff number for blending two major varieties produced in Korea, KF114, a flue-cured, and KB108, a burley. The processed leaf tobacco were taken from Kim-cheon and Ock-cheon leaf tobacco processing factory. The results were summarized as followed ; 1. Nicotine contents of processed leaf tobacco were higher in KB108, a burley, than in KF114, a flue-cured. Nicotine contents of leaf and tips were higher in low-grade leaves than in high-grade leaves, but those of cutters and lugs were lower in low-grade leaves than in high-grade leaves. 2. The weight per cigarette of KF114 was heavier in the order of leaf, cutters, tips and lugs, and was heavier in high-grade leaves than in low-grade leaves. Combustion time was longer and puff number was more in the order of leaf, tips, cutters and lugs. 3. The weight per cigarette of KB108 was heavier in the order of tips, leaf, cutters and lugs, and was heavier in high-grade leaves than in low-grade leaves. Combustion time was longer in the order of tips, leaf, cutters and lugs. The time of cutters and lugs was longer in high-grade leaves than in low-grade leaves, but those of leaf and tips was longer in low-grade leaves than in high-grade leaves. 4. Nicotine and tar contents of the smoke from the processed leaf tobacco of KF114 were higher in low-grade leaf than in high-grade leaf and cutters and lugs were higher in high-grade than in low-grade. CO contents were higher in the order of leaf, cutters, tips and lugs. The difference of CO contents between different grades was lower than that of nicotine and tar contents. 5. In nicotine and tar contents of the smoke from the processed leaf tobacco of KB108, leaf and tips were higher in low-grade than in high-grade and cutters and lugs were higher in high-grade than in low-grade. CO contents were higher in the order of tips, leaf, cutters and lugs. There was no significant difference of CO contents between different grades of the stalk position. 6. Nicotine/Tar and CO/Tar ratios showed significant difference according to tobacco variety and grade of processed leaf tobacco. The ratios were reduced in lower stalk position. 7. There were positive correlations between puff number, nicotine, tar and CO contents in KB108, but there were no correlations between CO and nicotine, or CO and tar in KF114.

평면연삭버어의 가공조건에 의한 영향

이광영,옥철호,서영백,박흥식,전태옥 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2

This study has been carried out to prevent and decrease the grinding burr under various working conditions; number of grinding passes, depth of cut, hardness of the materials and work speed. Grinding wheel is WA grinding wheel and workpieces are SM45C, SS41, SCM23 and STS 304. The results of tained from this study are as follows; The length of gringing burr increased with increasing grinding passes and it has nothing to do with materials and heat treatment. The size of grinding burr increased with increasing grinding depth and feed speed. The size of grinding burr decreased with increased cross setion and of workpiece. According as the hardness of material was increased, the width of grinding burr decreased conspicuously owing to suppression of plastic zone of burr root part.

알레르기성 비염환자의 비점막에서 HSP72의 발현

이흥만,이우섭,최충식,이상학 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.11

회귀분석을 이용한 STS304의 표면거칠기에 관한 엔드밀 가공조건의 상관관계 추정(Ⅱ)

이상재,전환영,류미라,박흥식 東亞大學交附設 生産技術硏究所 2005 生産技術硏究所硏究論文集 Vol.10 No.-

End-milling has become widely used in industrial systems because it has proved effective in the manufacture of materials with various shapes. End-milling processing, using a high-precision technique and producing good surface roughness in rapid time, is required in the manufacture ofprecision machine and electronic parts. Surface roughness is affected by the conditions of end-milling, suchas cutting direction, spindle speed, feed rate and cut depth. Therefore, this study was carried out to presume for mutual relations of end-milling conditions to achieve the optimum surface roughness by regression analysis. The results showed that the coefficient of determine (R2) of the regression equation has a high reliability, 85.1%, and the regression equation of surface roughness is made by regression analysis.

마이크로파 대역에서 실내 환경의 경로손실인자를 사용한 통계적 모델링

이권익,홍석욱,강부식,김흥수 濟州大學校 産業技術硏究所 1999 산업기술연구소논문집 Vol.10 No.1

In this paper, indoor propagation characteristics are analyzed for various environments such as corridors, walls and corners at microwave band. In order to present the statistical model for indoor environments the loss factors of each case are obtained by linear regression analysis method with the function of logarithmic distance between transmitter and receiver. Comparisons of our predicted results to measurements indicate that improvements in accuracy over conventional statistical models are achieved.

濟州 西部地域의 電波 傳播 豫測 모델

이권익,강부식,홍성욱,김흥수 濟州大學校工科大學産業技術硏究所 1996 尖端技術硏究所論文集 Vol.7 No.2

In this paper, we present the formula to find field strength under the terrain configurations of the western area of Cheju. The reflection coefficients are obtained by several experiments and the propagation model which includes the terrain configurations and reflection coefficients are presented. To find the field strength for known terrain configurations. we use this model and reflection coefficients. This prediction model play an important role in planning cell site and service area in western area of Cheju.

영광원자력발전소 주변의 식생과 식물현존량 추정

이호준,양효식,전영문,정흥락,강재구,방제용 建國大學校基礎科學硏究所 1996 理學論集 Vol.21 No.-

영광원자력발전소 주변의 식생에 대한 식물사회학적 조사를 실시하였으며, 순 1차 생산량과 식물현존량을 추정하였다. 또한 상관에 의해 현존식생도 및 녹지자연도를 작성하였다(1:50,000). Z-M 방식에 의한 삼림식생은 소나무군락과 곰솔군락으로 구분되었다. 전체적으로 교목층에 소나무와 곰솔, 아교목층에 졸참나무와 곰솔, 관목층에 털진달래와 신갈나무, 초본층에 털대사초와 그늘사초 등의 피복지수가 우세하게 나타났다. 토양의 pH는 4.65∼4.67, 유기물 함량은 7.28∼7.53%의 범위였다. 현존식생도에 의한 분포비율은 경작지(67%), 소나무(21.9%) 및 곰솔군락(9.1%)의 순으로 나타났으며, 녹지자연도는 등급 2가 67%(경작지), 7등급(이차림(A))과 6등급(조림지)이 각각 29.2%와 1.8%로 나타났다. Montreal model에의한 소나무림과 곰솔림의 식물현존량은 657,817.2와 177,367.0ton으로 각각 산정되었다. The forest vegetation and estimation of phytomass and net primary production in the vicinity of Yonggwang Atomic Power Plant were analyzed on the basis of the phytosociological data. Depending on physiognomy, the actual vegetation map and the degree of green naturality(DGN) were also drawn in the scale of 1:50,000. According to Z-M method, the forest vegetation was classified into two communities; Pinus densiflora and Pinus thunbergii communities. It was generally shown that Pinus densiflora and Pirus thunbergii in tree-1 layer, Quercus serrata and Pinus thunbergii in tree-2 layer, Rhododendron mucronulatum var. ciliatum and Quercus serrata in shrub layer, and Carex ciliato-marginata and Carex lanceolata in herb layer had high coverage index. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetationindex. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetation type in the actual vegetation map was 67% cultivated land, 21.9% in Pinus densiflora community and 9.1% in pinus thunbergii community. The distribution of the degree of green naturality(DGN) was 67% in the second-grade (cultivated land), 29.2% in 7th grade (second forest(A)) and 1.8% in 6th grade (plantation). It was estimated that phytomass of Pinus densiflora and Pinus thunbergii in the study sites, which was calculated by Montreal model, was 657,817.2 and 177,367.0 ton, respectively.

괴사후성과 비괴사후성 간경변증에서 원인별 주석교질 (^99mTc-tin colloid) 간스캔의 차이

이헌영,허승식,이강욱,정현용,김삼용,신영태,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

The differences of the liver scintigraphic features between postnecrotic and nonpostnecrotic liver cirrhosis were studied for 69 patients. Degrees of mottling and splenomegaly were no different between two groups but shrinked form was more frequent finding in postnecrotic type(23:10), and normal shape & enlarged left lobe with shrinked right lobe were relatively dominant in non-postnecrotic group(15:6, 10:2). Grade of extrahepatic uptake of ^99mTc-tin colloid was significantly higher in Child-Pugh B & C group than A group(p<0.05), but there was no difference between postnecrotic and non-postnecrotic groups. These will be important results on the dicision for the presence of cirrhosis according to the variable causes.