물시멘트비 및 단위수량에 따른 고품질 재생잔골재를 사용한 재생콘크리트의 공학적 특성에 관한 실험적 연구

문형재,송민섭,김재환,장종호,김용로,김무한 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

The purpose of this study is to investigate and analyze experimentally and positively engineering properties of recycled concrete using high quality recycled fine aggregate according to w/c ratio and unit water contents. And it is intend to present fundamental data for the mix design and the improvement of quality. The results are as follows; According to the increase of W/C ratio, the addition ratio of superplasticizer was reduced, the strength of compressive and tensile showed low and carbonation depth and chloride penetration depth showed high. And according to the increase of unit water contents, the addition ratio of superplasticizer was reduced, the strength of compressive and tensile showed low and carbonation depth and chloride penetration depth showed high.

흰쥐에서 음경발기 평가의 척도로서 음경해면체내압측정술 확립

송윤섭,김용준,이광우,김준모,문기혁,박영호,민영기,유형균,김형건 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Purpose: Because studies about the control of penile erection at the entral nervous system was dependent on the animal experiments, establishment of measuring penile erection is important to evaluate the effects changes at the central nervous system on the penile erection. Intracavernous pressure measurement in rats has been introduced as a suitable index for the evaluation of penile erection but this method is invasive and technically difficult. So, we established the intracavernous pressure measurement in rats as the experimental index for penile erection. Materials and Methods: 42 male adult Sprague-Dawley rats (250-300gm) were divided to saline or papaverine treated group. Rats were placed on a heating table to maintain their body temparature and anesthetized with 50mg/kg of pentobarbital sodium by intraperitoneal injection. A cannula was inserted to the left carotid artery to measure systemic blood pressure. Saline (0.05, 0.1ml), papaverine(0.05, 0.1, 0.25, 0.5, 1.0, 2.0mg) were injected intracavernously via 26 guage needle filled with saline or papaverine which connected to pressure transducer and polygraph was inserted into the corpus cavernosum on one side to inject the drug and to measure intracavernous presure. Results: Properly executed insertion and intracavernous administration produced a instantaneous but transient rise in intracavernous pressure that substantially stabilized and maintained at 5.4±0.4mmHg. Intracavernous pressure and duration of penile blood flow following intracavernous injection of papaverine are increased comared to those of saline. Conclusions: Monitoring intracavernous pressure in rats represents a suitable index for the evaluation of penile erection in small laboratory animals.

우리 나라 都市와 農村地方의 母乳授乳 實態에 關한 調査硏究 : 全南地方을 中心으로

文松洙,具光鍊,金成宜,韓圭炯,羅昌洙 朝鮮大學校 附設 醫學硏究所 1983 The Medical Journal of Chosun University Vol.8 No.1

Human milk is the best source of nutrients for the human infant, and its nutritional and immunologic benefits are now established, In spite of these advantages, the incidence and duration of breast feeding- is decreasing in many part of the world. The purpose of the study is to collect the data on breast feeding practice in rural and urban area of Chullanamdo, Korea and to follow the trend toward breast feeding in fuutre. Between July 1981 and January 1982, 674 mothers with the children under 2 years of age have been interviewed at Out-Patient Department. The breast feeding situation at the time of interviewed was recorded. The percentage of wholly breast-fed in the age group of 0~1, 1-2, 2~3 ,3~4, 4~5, 5~6, 6-12 and 12~24 months were 61.8%, 50.0%, 51.6%, 65.2%, 50.0%, 45.7%, 23.0% and 17.3% respectively. And the percentage of partially breast-fed in the age group of 0~1, 1~2, 2~3, 3~4, 4~5, 5~6, 6~12, and 12~24 months were 29.4%, 33.3%, 25.8%, 17.4%, 34.2%, 39.1%, 8.6% and 80.0% respectively, In the incidence of wholly breast feeding, there was no correlation between deliveries in hospital and deliveries at home attended by midwives or traditional midwives. The most frequent reasons for partially breast-fed in the age group of 0~1, 1~2, 2~3, and 3~4 months were not enough breast milk.

초음파 펄스에코 신호의 3차원 처리

송문호,손상락,조정호,성제중,안형근,장순재 한국비파괴검사학회 2003 한국비파괴검사학회지 Vol.23 No.5

비파괴 시험을 위한 3차원 구조의 초음파 영상에는 다양한 결함을 명백하게 보여줄 수 있을 만큼 상세하고 쉽게 알아볼 수 있는 정보가 제공되어야 한다. 수년 동안 원자력 발전소에서 사용된 금속관에 발견되는 소규모의 균열은 전형적인 결함들인데, 이러한 밀리미터 이하의 균열이나 결함은 최종 3차원 영상에서 묘사되어야만 의미있는 검사가 될 것이다. 향상된 선명도와 그에 따른 결함의 발견 과정의 한 단계로써, 펄스에코(pulse-echo) 초음파를 사용한 3차원 영상제작 기술을 제안한다. 이 기술은 필요한 스캐닝과 펄스에코 데이터의 처리과정을 통한 검사로 3차원 물체의 3차원 영상을 생성하는데, 2차원 위너필터(Wiener filter)에 의해 초음파 빔을 선명하게 하는 기술을 포함한다. 제안하는 위너필터는 빔의 전달에서 펄스에코 데이터를 초음파 빔 방향의 수직방향에 따라 필터링한다. 이 3차윈 처리과정은 결함의 선명성을 증진시키고 사용자에게 3차윈 구조물의 좌우 회전 및 축 회전과 같은 조작 능력을 제공한다. 이러한 조작 능력은 3차원에서 다양한 결함들의 크기와 위치의 분명한 묘사를 가능하게 한다. Infrasonic imaging of 3-D structures for nondestructive evaluation must provide readily recognizable images with enough details to clearly show various flaws that may or may not be present. Typical flaws that need to be detected are miniature cracks, for instance, in metal pipes having aged over years of operation in nuclear power plants; and these sub-millimeter cracks or flaws must be depicted in the final 3-D image for a meaningful evaluation. As a step towards improving conspicuity and thus detection of flaws, we propose a pulse-echo ultrasonic imaging technique to generate various 3-D views of the 3-D object under evaluation through strategic scanning and processing of the pulse-echo data. We employ a 2-D Wiener filter that filters the pulse-echo data along the plane orthogonal to the beam propagation so that ultrasonic beams can be sharpened. This three-dimensional processing and display coupled with 3-D manipulation capabilities by which users are able to pan and rotate the 3-D structure improve conspicuity of flaws. Providing such manipulation operations allow a clear depiction of the size and the location of various flaws in 3-D.

旣存住宅의 에너지 效率等級表示制度 硏究 (Ⅱ)

柳憲聲,長文碩,宋寅春 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.1

The objective of the study is to present a certain method that could be classfied the existing detached houses over 5 millions in our country by their energy efficiency. The method, will be called KHEES(Korean Home Energy Evaluation System), will contribute to save energy in residences effectively and will change the passive attitude of home owner's energy saving mind to the active one. The principal scope and the results of this study are as follows. - Gathering of project-related data including papers, reports and existing home energy rating systems of developed countries has done. - Field survey for the existing 71 detached houses in the country was done to examine their building data and their present situation of energy use, analysis and calculation for the yearly energy consumption rate of existing houses has done. - Reference house was designed by using various data such as national census results, building regulation and social indicator. - Energy performance index of existing detached houses was made out in thru of energy analysis program. - Energy rating system that could be classified the existing detached houses was set up. - A reference house of 89㎡ is designed, and its annual energy consumption rate which will be used as a tool of comparison is calculated. - From the comparison of the energy consumption rate between the reference house and the existing detached houses, the fact that the annual energy consumption rate of the existing detached houses are more from 5.7% at minimum to 57.8% at maximum than that of the reference house. - The existing detached houses was classified into three groups according to their construction year such as before 1979, from 1979 to 1987 and after 1988. The comparison result of annual energy consumption rate among three groups shows the rate of preceeding group is less about 9.0% and 8.1% respectively than the rate of succeeding group. - As the energy rating method of existing detached houses, energy certificate issuing system, energy performance rating system classified by yearly energy consumption rate marking system indicated by energy performance were presented.

建物에너지 性能基準의 改善方案 硏究

柳憲馨,張文碩,閔晶鉉,宋寅春 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.2

Since the end of 1970s a lot of energy related regulations and measures for energy conservation of buildings was prescribed and abolished. But to ensure that the substantial energy conservation is accomplished, it is necessary to ensure that not only the regulations and measures have to be observed favourably but also they might be investigated through the process of post evaluation. The study for the purpose of post evaluation of present using regulations and measures could be summarized as following results. ·In the aspect of the performance standard against our component standard energy rating method of existing detached houses was suggested. ·Some fallacies on the calculation of annual heating and cooling load of apartments were pointed out and their improvements were presented. ·By the recent amendment of Code for design guideline of office buildings, unreasonableness on the existing Code was analyzed and its improvements are prepared. ·Unreasonableness of Energy Performance Index as a energy evaluation tool of buildings was investigated and analyzed.

지난 2년간의 학회지 "신경정신의학" 심사 평가보고

김찬형,김세주,김도관,김성곤,박원명,송동호,박용천,이영문,오강섭,정영철,이상열,김주한,이동영,이헌정,함병주,김율리,김문두,김정진,이강욱,천근아,김재진,홍진표,홍승철 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.6

Mirizzi 증후군의 변형된 분류와 치료

김형철,강길호,채만규,김성용,백무준,이문수,박상흠,이문호,김창호,송옥평,조무식,박희주 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Purpose : The Mirizzi syndrome is relatively rare and preoperative diagnosis of this disease is difficult. In 1978, Morelli suggested the subclassification of the Mirizzi syndrome into acute or chronic form. We experienced 5 cases of acute form. We analysed clinical features, preoperative radiologic findings and operative findings of 18 cases including acute forms which were diagnosed as Mirizzi syndrome and should suggest the modified classification of Mirizzi syndrome for choice of appropriate treatment. Method : From January 1995 to December 1998, 18 cases, of which 8 cases were diagnosed at Soonchunhyang University Chunan Hospital, and 10 cases were reported in the Korean Journal were retrospectively analysed with regard to clinical features, preoperative radiologic findings and operative findings. According to the clinical features, whole cases were divided into type Ⅰ(acute form) and type Ⅱ(chronic form) and then each type of cases were subclassified according to preoperative radiologic findings and operative findings. Results : Of 18 cases there were 5 cases in type Ⅰ(27.8%), 13 cases in type Ⅱ(72.2%). Type Ⅱb was most common. Type Ⅰa cases were treated only with cholecystectomy. We applied cholecystectomy, T-tube choledochostomy and patch technique in type Ⅰb and thpe Ⅰc cases. Cholectystectomies including removal of gallstones and internal drainage procedures were done in type Ⅱ chronic forms. Conclusion : The acute form(Type Ⅰ) of Mirizzi syndrome was suggested by Morelli might be subclassified into typeⅠa,Ⅰb and Ⅰc following the presence of the necrotic defect in common hepatic duct. Through the modified classification of Mirizzi syndrome based on clinical feature, preoperative radiologic findings and operative findings, we can choice appropriate treatment.

동결온도가 해동 쇠고기의 품질에 미치는 영향

남주현,송형익,김미숙,문윤희,정인철 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.5

동결온도가 해동우육의 품질에 미치는 영향을 검토하였다. 해동드립감량은 -3℃ 동결이 30일째에 3.4%, -20℃ 동결이 60일째에 1.8%로 높았으며, -3℃가 -20℃보다 드립량이 많았다. 가열감량은 water bath와 pan 가열 모두 저장초기보다 동결저장중에 현저하게 높았으나, 동결온도에 의한 차이는 없었다. 염용성 단백질의 추출성은 동결기간이 경과함에 따라 감소하였고, -20℃에서 동결한 것이 -3℃에서 동결한 것보다 추출성이 높았다. 수용성 단백질의 추출은 -3℃의 경우 동결기간에 따라 현저한 변화가 없었으나, -20℃에서 동결한 것은 동결기간에 따라 증가하는 경향을 보였다. 명도(L)는 동결초기가 높았고 적색도(a)는 동결기간에 따른 변화가 없었으며, 황색도(b)는 동결초기보다 동결중에 더 높았다. Myoglobin의 변성율은 -3℃의 경우 45일째, -20℃의 경우 15일째 각각 94.4%와 94.0%로 가장 높았다. 전단력가는 동결초기보다 저장기간이 경과함에 따라 높아졌으며, 근원섬유의 소편화도는 동결저장중 현저한 변화가 없었다. pH는 -3℃와 -20℃ 모두 30일째까지 높아지다가 그 이후 낮아지는 경향을 나타내었다. This study was carried out to investigate the effects of freezing temperature on quality of thawed beef loin. In case of thaw drip loss, the freezing of -3℃ and -20℃ were higest by 3.4% to 30 days and by 1.8% to 60 days, respectively. And the thaw drip loss of -3℃ freezing was more than -20℃ freezing. The cooking loss of water bath and pan boiling were increased significantly during freezing than the beginning of freezing, but were not different -3℃ and -20℃. The salt soluble protein extractability was decreased during freezing, the -20℃ freezing was higher than -3℃ freezing. The water soluble protein extractability of -3℃ freezing was not significant different during freezing storage, that freezed at -20℃ was increased during freezing. The "L" value of the beginning of freezing was higher than during freezing, the "a" value was not different during freezing, and the "b" value during freezing was higher than the beginning of feezing. The myoglobin denatured percentaged of the -3℃ and -20℃ freezing were highest by 94.4% to 45 days and by 94.0% to 15 days, respectively. The shear force value during freezing was higher than the beginning of freezing, the myofibrillar fragmentation index was not significant different during freezing. The pH was increased to freezing 30 days, after that was decreased.

정상 백서 및 담즙성 간경변증을 유발시킨 백서에서 간문맥 결찰시 간장변화에 관한 실험적 연구

채권묵,송훈섭,소병준,문형배 圓光大學校 醫科學硏究所 1996 圓光醫科學 Vol.12 No.2

Portal vein branch ligation has been implicated to stimulate the hypertrophy of the unaffected lobe of the liver, but it has been suggested that the degree of the hypertrophy of the cirrhotic liver would be less than that of the normal liver. So, we tried to induce biliary cirrhotic liver by ligation of the common bile duct for this experiment and to evaluate the difference of the effect of the portal vein ligation among the different experimental rat liver groups. For the experimental study, we used Sprague - Dawley rats which were classified into the two groups. Group A (N = 16): Rats with portal venous branch ligation only. Group B (N=16): Rats with portal venous branch ligation after biliary cirrhosis were made by common bile duct ligation. In order to induce biliary cirrhosis, we ligated the common bile duct ligation in 135 rats and exploratory laparotomy for biopsy was done 3 weeks later after common bile duct ligation and the incidence of biliary cirrhosis was about 40%(54/135). 16 rats with the biliary cirrhotic liver were chosen for further study and one of 5 portal branches was ligated and the rats were sacrificed at different time point(1st, 3rd, 5th, 8th week) after initiation of the experiment, and the livers were removed and examined to find out the gross and histologic changes of the livers. The same procedures were performed in 16 normal rats for control study. In the Group A, the severe inflammatory changes and multiple necrotic foci were shown in the ligated lobe from the 3rd week, and firm nodularity was palpated but hypertrophic changes were not noticed in the unaffected lobe. In the group B, ligated lobe showed the same findings with the group A, but unaffected lobe did not reveal any specific findings. In our experiment, we could induce biliary cirrhosis after common bile duct ligation but we could not examine any hypertrophic changes in the both groups-normal and cirrhotic livers - after portal vein branch ligation. This might suggest that only small portion of necrosis - less than 20% - can not induce compensatory hypertrophy in the unaffected lobe.