무증상으로 발견된 담낭-담관 누공을 동반한 Mirizzi 증후군 1예

홍진희,전태주,서지영,서동대,오태훈,신원창,최원충,신은아,김기환 인제대학교 2009 仁濟醫學 Vol.30 No.-

Mirizzi's syndrome is a rare complication of the gallstone disease, characterized by narrowing of the common bile duct (CBD) due to chronic extrinsic compression of an impacted gallstone in the cystic duct or the neck of the gallbladder. The impacted gallstone may erode into the bile duct, causing cholecystocholedochal fistula. The patients generally have history of repeated attacks of jaundice and abdominal pain. But there is no report about asymptomatic Mirizzi syndrome with cholecystocholedochal fistula which were found incidentally. So herein we present our clinical experience with a case of asymptomatic Mirizzi syndrome with cholecystocholedochal fistula in a young female.

온수배관을 이용한 온실의 난방성능

윤용철(Yong Cheol Yoon),신익수(Yik Soo Shin),김현태(Hyeon Tae Kim),배승범(Seoung Beom Bae),최진식(Jin Sik Choi),서원명(Won Myung Suh) (사)한국생물환경조절학회 2012 생물환경조절학회지 Vol.21 No.2

본 연구는 온실의 난방 에너지 절감을 목적으로 온실 내부에 알루미늄 온수배관을 설치하여 난방효과에 대한 기초자료를 구축하고자 수행되었다. 그 연구결과를 요약하면 다음과 같다. 전체 실험을 포함하여 온실내의 높이별 온도편차는 4.0~7.0℃ 정도의 범위로서 그 차이가 크게 나타났다. 팬코일유니트(FCU)를 작동시킨 경우가 작동시키지 않은 경우에 비해 유출입수의 온도차가 3.3℃ 정도 크고, 소비전력량은 36.2~40.1% 정도 증가하였으며, 시간당 방열량은 44.6~52.0% 정도 증가하는 것으로 나타났다. 실험기간동안 순환유량은 0.48~0.49L · s<SUP>?1</SUP> 정도의 범위에 있었고, 평균유속은 1.53~1.56m · s<SUP>?1</SUP> 정도였다. 유출입수의 평균 온도차는 6.24~11.50℃이었다. 최저 외기온 ?14.0~?0.6℃ 범위에서 설정온도별 방열량은 135,930~307,150㎉ 정도의 범위로서 시간당 9,610~19,630㎉ · h<SUP>?1</SUP> 정도의 범위에 있었다. 이것은 최대난방부하의 약 23~53% 정도의 난방에너지를 공급할 수 있을 것으로 나타났다. 전체 방열량과 소비전력량은 각각 2,548,306㎉ 및 3,075.7㎾h이다. 화석연료인 경유로 난방할 경우, 소요되는 경유의 총 소비량은 281.6L 정도이고 비용은 321,000won인 것으로 나타났다. 농가용 전력요금을 적용하면 전력사용에 대한 총비용은 110,730won 정도로서 경유 소비 비용의 33.5% 정도로 나타났다. 실험구의 온도가 대조구보다 약 8.3~14.6℃ 정도 높게 나타났다. This research was conducted to obtain basic data with regard to the heating performance that would be produced by installing an aluminum hot water pipe inside the greenhouse with the goal of reducing the heating energy in greenhouse. The research results are summarized as follows. The degree of difference in relation to the temperature by height within the greenhouse during the entire experiment was significant - within the range of 4.0~7.0℃. The temperature difference between incoming and outgoing water was about 3.3℃ greater when FCU was activated compared to when it was not activated. Meanwhile, the amount of energy consumed increased about 36.2~40.1%. The amount of pyrexia per hour also increased by 44.6~52.0%. During the experiment period, circulated flux was within the range of 0.48~0.49 L · s<SUP>?1</SUP> while average fluid speed was 1.53~1.56 m · s<SUP>?1</SUP>. The average temperature difference between incoming and outgoing water was 6.24~11.50℃. The amount of heating value by each set temperature within the minimum outdoor temperature range of ?14.0~?0.6℃ was 135,930~307,150 ㎉, and the range was within the 9,610~19,630 ㎉ · h<SUP>?1</SUP> per hour. This demonstrated that about 23~53% heating energy of the maximum heating load could be supplied. Total radiating value and amount of energy consumed were 2,548,306 ㎉ and 3,075.7 ㎾h, respectively. When heating takes place using oil, which is a fossil fuel, the total amount of light oil consumed was 281.6 L while the cost was 321,000 won. When the electricity cost for farms is applied, the total cost was about 110,730 won, which is about 33.5% of the cost required compared to oil consumption. The temperature at in the experiment area was about 8.3~14.6℃ higher compared to that of the control area.

요추간판탈출증에서 현미경 수술과 경피적 자동수핵제거술에 대한 비교연구

신원한,장재칠,주교성,김범태,최순관,변박장 순천향의학연구소 1997 Journal of Soonchunhyang Medical Science Vol.3 No.1

A retrospective study of operative results were carried out in a series of 164 patients who were performed microdiscectomy and 57 patients performed automated percutaneous lumbar discectomy (APLD) for herniated lumbar discs between January 1, 1990 and June 30, 1996 at the Department of Neurosurgery, Soonchunhyang University Hospital. The operative results were analysed, and the correlation between preoperative clinicoradiological factors and postoperative clinical results were statistically assessed. The major results were as follows : 1. Of 164 microdiscectomy cases, 102 were males and 62 were females, mean age was 42.4 years and incidence was the highest in the 5th decade, and of 57 APLD cases, 43 were male and 14 female, mean age was 32.2 years and incidence was the highest in the 3rd decade. 2. The preoperative symptoms and signs were lumbago(98.2%), radiating pain(96.3%), positive straight leg raising test(77.4%), motor weakness(27.4%), claudication(13.4%) & voiding difficulty(2.4%) in microdiscectomy cases, and lumbago(98.2%), radiating pain(98.2%), positive straight leg raising test(70.2%) & motor weakness(17.5%) in APLD cases. 3. Number of operated levels were performed 226 in microdiscectomy and 74 in APLD. The most commonly operated levels of two groups were L4-5 level. 4. Operative results 1) The overall success rates by Prolo's scale were 87.1% in microdiscectomy and 80.7% in APLD, respectively. 2) In younger age group (below 30 years) and in non-compensatory group, success rates were significantly higher in microdiscectomy. 3) As to protrusion and degeneration on MRI, clinical results of moderate protrusion and degeneration of discs in microdiscectomy were statistically significant, and those of mild protrusion and degeneration of discs in APLD were also statistically significant. 4) The most common cause of failure was inappropriate removal of disc material in microdiscectomy and sequestered discs in APLD. According to the above results, there were no differance in overall success rates between microdiscectomy and APLD. But clinical results seem to be influenced by the age, existence of compensation, and by the degree of protrusion and degeneration of discs as prognostic factors. If the selection of operative procedure between microdiscectomy and APLD for herniated lumbar disc is carefully done with clinical and radiologic findings of patients, good outcome might be achieved.

사람신경 아교세포의 배양과 희소돌기아교세포내 Myelin Basic Protein, ProteolipidProtein 및 Myelin-Associated Glycoprotein의 면역세포학적 관찰

신태균,김원식 대한해부학회 1991 Anatomy & Cell Biology Vol.24 No.1

카올린에서 추출한 Silica로부터 탄소 환원질화에 의한 질화규소의 합성

신현택,형유업,박찬욱,배원태 慶尙大學校生産技術硏究所 1987 生産技術硏究所論文集 Vol.3 No.-

Nitriding behavior of the mixtures of amorphous silica extractracted from San Chung White kaolin and activated carbon Were studied by varying the carbon content, reaction temperature, and time under N₂atmosphere. Experimental results obtained from XRD, SEM and TEM indicated that the nitridation of the mixtures initiated below 1200℃ and mullite, silicon oxynitride, β-Sialon, β-SiC, and α-and β-Si₃N₄were identified as reaction products. Optimum nitridation condition of extracted silica were as follows. 1. Carbon/Extracted silica (in weight ratio)=3. 2. Reaction temperature; 1350℃ 3. Reaction time ; above 1hour.

질량의 최적 배치에 의한 구조물 진동 감소 연구

申龜秀,李祺形,朴泰圓,鄭寅聖 全北大學校 1996 論文集 Vol.42 No.-

In this paper, a theoretical optimization approach is presented in order to consider natural frequencies for vibration transmitted to the fuselage. Also, this paper describes methods for reduction of structural vibration by the optimal placement of masses for formal mathematical optomization techniques. An optimization procedure is developed which employs the tuning masses and corresponding locations as design valiables which are systematically changed to achieve low values of shear without a large mass penalty. Three optimazation strategies are developed and tested. The first is based on minimizing the modal shaping parameter which indirectly reduce the modal shear amplitudes corresponding to each harmonic of airload. The second strategy reduces these amplitudes directly and the third strategy reduces the shear as a function of time during a revolution of the blade.

입원한 입시 스트레스 증후군 환자의임상양상에 관한 정신의학적 연구

신광철,진태원,이영식,이재우,이재광,이길홍 중앙대부설한국의과학연구소 1991 한국의과학 Vol.23 No.3

Sarcoma 180 유발생쥐의 생존시간에 대한 Cyclophosphamide 및 Typhoid Vaccine 의 단독 및 병합투여의 영향

신인철,서대규,김윤원 漢陽大學校 環境科學硏究所 1989 環境科學論文集 Vol.10 No.-

체중 25mg내외의 ICR계 웅성생쥐에 복수암인 sarcoma 180을 유발시킨 후 48시간 경과후부터 격일로 1일 1회씩3회에 걸쳐 체중 kg당 8ml의 생리적 식염수를 복강내에 투여한 군을 대조군으로 하고,체중 kg당 100 mg의 cyclophosphamide를 복강내에 단독 투여한 군과 체중 kg당 4ml의 typhoid vaccine을 복강내에 단독 투여한 군 및 체중 kg당 100mg의 cyclophosphamide와 4ml의 typhoid vaccine을 복강내에 병합 투여한 군으로 나누었다.숙주의 수명은 잔존하는 악성종양 세포의 수와 반비례하는 것으로 알려져 있음으로 sarcoma 180 유발 생쥐의 생존시간 및 암세포수에 미치는 cyclophosphamide 및 typhoid vaccine의 단독 또는 상호 병합투여에 대한 다음과 같은 결과를 얻었다. 1. Sarcoma 180 유발생쥐의 생존일수의 평균치는 대조군에서는 13.8일이었으나, cyclophosphamide 단독 투여군에서는 20.2일, typhoid vaccine 단독 투여군에서는 18.1일 이었고, cyclophosphamide와 typhoid vaccine 병합 투여군에서는 23.4일로서 생존일수의 언장효과를 보여주었다. 2. Sarcoma 180 유발 생쥐의 복수에서의 암세포 수는 대조군에서는 암세포 수가 점차증가되었으나, cyclophosphamide 단독 투여군, typhoid vaccine 단독 투여군 및 cyclophosphamide와 typhoid vaccine 병합 투여군에서는 대조군에서 보다 적은 범위로 암세포 수가 증가되어 암세포 증식의 억제효과를 보여 주었는데 cyclophosphamide 와 typhoid vaccine 병합 투여 군에서 가장 큰 폭으로 암세포 증식의 억제효과를 보여 주었다. Sarcoma 180 bearing mice, averaging 25gm of body weight, were divided into 4 groups of animals, animals administered 8ml/kg of normal saline as control group, group administered 100mg/kg of cyclophosphamide, group administered 4ml/kg of typhoid vaccine and group administered 100mg/kg of cyclophosphamide and 4ml/kg of typhoid vaccine. Treatment was initiated 48 hours after tumor implantation and repeated three times once a day. All the agents given were administered intraperitoneally. This study was made to elucidate the effects of cyclophosphamide and typhoid vaccine on the survival days and tumor cell count in sarcoma 180 bearing mice. The results were as follows. 1. Average survival days was 13.8 days in control group, 20.2 days in group administered cyclophosphamide in alone, 18.1 days in group administered typhoid vaccine in alone and 23.4 days in group administered cyclophosphamide and typhoid vaccine in combination. 2. Tumor cellcount in ascitic fluid was increased in control group and increased to smallerextents than control group in groups administered cyclophosphamide and typhoid vaccine in alone or combination.Consequently,it is suggested that cyclophosphamide and typhoid vaccine have the effects of prolongation of survival days and inhibition of proliferation of tumor cells in sarcoma 180 bearing mice.

남자 초·중·고등학생의 최대 산소섭취량 추정에 관한 연구

신호수,이병근,전태원 師範大學 體育硏究所 1992 서울大學校 體育硏究所論集 Vol.13 No.1

The purpose of this study was to produce regression equation of VO₂max prediction appropriated to elementary, middle and high school male students, and to eveluate the validity of their predictions. The predictions of VO₂max (ℓ/min, ml/㎏/min and ml/FFW/min) were obtained by multiple regression procedures from a sample of 53 students, aged 7∼17 years. The prediction for VO₂max were obtained from the subjects’age, height, weight,% fat and fat-free weight. From the result of multiple regression for VO₂max, the following equations were obtained. ------------------------------------------------------------------------------- Inde. Vari No Prediction equations ------------------------------------------------------------------------------- 1 1.554+0.060*AGE-0.011*HT+0.062*WT-0.033*%FAT-0.014*FFW VO₂max ℓ/min 2 0.559+0.047*WT-0.024*%FAT 3 -0.507+0.038*AGE+0.004*HT+0.034*WT ------------------------------------------------------------------------------- 4 74.32+0.959*AGE-0.167*HT+0.208*WT-0.640*%FAT+0.209FFW VO₂max 5 59.13-0.513*%FAT ㎖/kg/min 6 34.68+0.618*AGE+0.118*HT-0.293*WT ------------------------------------------------------------------------------- 7 95.22+1.707*AGE-0.276*HT+1.192*WT-0.588*%FAT-1.48*FFW VO₂max 8 64.92+0.618*HT-0.914*FFW ㎖/FFW/min 9 60.25+0.311*AGE+0.100*HT-0.276*WT ------------------------------------------------------------------------------- The multiple correlations and relative errors of estimate for the predictions in ℓ/min (No.1.2.3) were quite similar (R=0.96, 0.96,0,92; CV=±9.5%, ±9.5%, ±10.1%). The multiple correlations for the prediction in ml/㎏/min (No.4,5,6) were quite different (R=0.45, 0.41, 0.29), but the relative errors of estimation, ±9.9%, ±10.1% and ±10.6% respectively, were quite similar. The multiple correlations and relative errors of estimate for the predictions in ml/FFW/min (No.7,8,9) were quite similar (R=0.68, 0.62, 0.45; CV= ±9.3%, ±10.2%, ±11.6%). The validity of prediction equations was tested from the validity group (7∼17 years, 19boys). It is 0.92∼0.94 for equation 1∼3, 0.50∼0.65 for equation 4∼6, and 0.59∼0.64 for equation 7∼9. Their prediction equations were quite stable, % errors approximately -0.8∼-3.2%. It indicated that the predictive equations in this study provide more reliable than the Astrand-Ryhming nomogram and that reasonably and accurate of VO₂max for the male students may be obtained from their age, height, weight, %fat and fat-free weight.

편측안면경련에 대한 미세혈관압술시 수술시야 확보를 위한 방법으로서 소뇌피질동맥 박리술 - 수 술 수 기 -

김범태,임수빈,장재칠,신윈한,최순관,변박장 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.11