다목적홀의 음향설계를 위한 1/10 축척모형의 제작 및 평가

류종관,신동재,전진용 대한건축학회 2004 대한건축학회논문집 Vol.20 No.9

A 1/10 scale model was introduced as an efficient tool to predict acoustical qualities of multi-purpose halls It was constructed to predict the acoustical properties, and to complement and adjust the architectural components on room acoustical characteristics of K-performing arts center The materials of scale model such as seats and audiences, absorption banners were selected through measurements of absorption coefficient In a 1/10 reverberation chamber and the absorption coefficients due to air-absorption With relative humidity was also Investigated As a result, It showed that types and parts of material and arrangement of specimen had much effects on absorption coefficient, and air absorption resulted In a significant decrease In absorption coefficient at high frequency In addition, the reverberation time of scale model was measured In occupied seats and the effect of absorption banners on the ceiling and side walls was also investigated Results showed that reverberation time of scale model showed a decrease of 0.5s by banners on the ceiling, whereas those on side walls had a little effect on reverberation time

간헐폭기 변법에 의한 질소제거

유재현,박승조,윤철중 東亞大學校 1999 東亞論叢 Vol.36 No.-

This study is the removal of nitrogen in the tannery wastewater by modified intermittent aeration process. The experiment was performed with the tannery wastewater of J industry complex located in Pusan. The reactor volume used for experiment was 114.24l as pilot scale. The performance of this process was evaluated by variation of wastewater temperature with 30, 20, 15℃. On operating with wastewater at 30℃ the removal rate of total nitrogen and NH₃-nitrogen were about 93% and 98% respectively. NO₂-nitrogen and NO₃-nitrogen were contained with 20~30mg/L in intermittent and nitrification reactor but those were reduced with 10mg/L in effluent by denitrification bacteria. By the way on operating with wastewater at 20℃ and 15℃ the removal rate of total nitrogen was 97%, 95% respectively. Because of change of operating condition it was prevented the reduction of activity of microorganism temperature down.

식도에 발생한 원발성 소세포암 1예

류보열,김태종,곽재정,김영학,박찬국,김만우,이승일,기근홍 조선의대 1995 The Medical Journal of Chosun University Vol.20 No.2

현역군인 발생을 중심으로 본 2001년도 국내 삼일열 말라리아 발생 현황

류승호,이원자,김영아,채종일,박재원 대한감염학회 2002 감염 Vol.34 No.5

임신과 동반된 난소섬유난포막종 1례

류은석,김윤숙,전섭,김종수,최승도,선우재근,배동한,양승화 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1

Fibrothecoma are mesenchymal tumors deriving from the ovarian stroma and consisting of theca-like elements and fibrous tissues. The reported incidence is between 0.4 and 8.0% of all ovarian tumors and this side variability can be attributed to the difficulty in differentiation fibrothecoma from ovarian fibroma or hyperplastic stroma nodules. We experienced a rare case of ovarian fibrothecoma in woman at 38 weeks gestation with previous repeat cesarean section diagnosed after tertiary cesarean delivery and bilateral tubal ligation with a brief review of literature.

정중운동신경과 척골운동신경의 전기생리학적 연구

김종순,이현옥,안소윤,구봉오,남건우,김영직,김호봉,류재관,류재문 대한정형도수치료학회 2005 대한정형도수물리치료학회지 Vol.11 No.2

The determination of peripheral nerve conduction velocity is and important part to electrodiagnosis. Its value as neurophysiologic investigative procedure has been known for many years but normal value of median and ulnar motor nerve was poorly reported in Korea. To evaluate of median and ulnar motor nerve terminal latency, amplitude of CMAP(compound muscle action potential), conduction velocity and F-wave latency for obtain clinically useful reference value. 71 normal volunteers(age,19-65 years;142 hands) examined who has no history of peripheral neuropathy, diabetic mellitus, chronic renal failure, endocrine disorders, anti-cancer medicine, anti-tubercle medicine, alcoholism, trauma, radiculopathy. Nicolet Viking Ⅱ was use for detected terminal latency, amplitude of CMAP, conduction velocity and F-wave latency of median and ulnar motor nerve. Data analysis was performed using SPSS. Descriptive analysis was used for obtain mean and standard deviation, independent t-test was used to compare between Rt and Lt side also compare between different in genders. The results are summarized as follows: 1. Median motor nerve terminal latency was right 3.00ms, left 2.99ms and there was no significantly difference between right and left side and genders. 2. Median motor nerve amplitude of CMAP was right 17.26mV, left 17.50mV and there was no significantly differences between right and left side and genders. 3. Median motor nerve conduction velocity was right 57.89m/sec, left 58.03m/sec and there was no significantly difference between right and left side and genders. 4. Median motor nerve F-wave latency was right 25.74ms, left 25.59ms and there was significantly differences between genders. 5. Ulnar motor nerve terminal latency was right 2.38ms, left 2.45ms and there was significantly differences between right and left side. 6. Ulnar motor nerve amplitude of CMAP was right 15.99mV, left 16.02mV and there was no significantly differences between right and left side and genders. 7. Ulnar motor nerve conduction velocity was right 60.35m/sec, left 59.73/sec and there was no significantly differences between right and left side and genders. 8. Ulnar motor nerve F-wave latency was right 25.53ms, left 25.57ms and there was significantly differences between genders.

척골 지단 신경의 전기생리학적 연구

김종순,이현옥,안소윤,구봉오,남건우,김호봉,류재관,류재문 대한정형도수치료학회 2005 대한정형도수물리치료학회지 Vol.11 No.2

The ulnar nerve extends down the arm, across the elbow, and into the hand. It provides sensation to the little and ring fingers and activates many of the small muscles in the hand. The determination of peripheral nerve conduction velocity is an important part of ulnar nerve evaluation. The electrodiagnostic value as neurophysiologic investigative procedure has been known for many years but normal value of digital nerve was not reported in korea. The purpose of this investigation was to measure the digital nerve conduction velocity of ulnar nerve for obtain clinically useful reference value and compare difference in each fingers and then compare with the other countries. 71 normal Korean volunteers (age, 19-65 years; 142 hands) examined who has no history of peripheral neuropathy, diabetic mellitus, chronic renal failure, endocrinedisorders, anti-cancer medicine, anti-tubercle medicine, alcoholism, trauma, radiculopathy. Nicolet Viking Ⅱ(EMG machine) was use for detected conduction velocity and amplitude of digital nerve in ulnar nerve. Data analysis was performed using SPSS. Descriptive analysis was used for obtain mean and standard deviation and independent t-test was used to compare with ring and little finger. Conduction velocity of the right ring finger was 57.44m/sec and little finger was 55.32msec. The left ring finger was 55.55msec and little finger was 54.11msec. Amplitude of the right ring finger was 30.28µV and little finger was 48.36µV. The left ring finger was 30.67µV and little finger was 57.76µV. There were significantly difference between ring and little in amplitude (p<.05) but there were no statistically difference between conduction velocity of ring and little finger (p>.05). The amplitude of little finger are greater than ring finger. The present results revealed that electodiagnosis can easily perform in little finger for digital nerve of ulnar nerve study.

F.A. Process에 의한 下水處理에 관한 硏究

姜龍太,柳在益,許宗文 東亞大學校 海洋資源硏究所 1989 硏究論文集 Vol.2 No.1

The purposes of this researches were to evaluate the effects of an advanced processes supplemented Conventional Activated Sludge Process and to invent the economical advanced process combined activated sludge process with FAC(Flocculation-Aeration-Clarification). Raw water used was synthetic wastewater. The primary treatment using the PAC process was effective in treating the wastewater with lower concentration. F.A process showed the removal rate of more than 90 percent without regard to variences of influent concentration.

완전 포상기태 이후 발생한 지속성 융모질환의 치료경험 2례.

이진희,류은석,김윤숙,김종수,최승도,선우재근,배동한 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1

Persistent tumor develops in approximately 20% of patients with a complete mole, and chemotherapy is required to achieve remission. Following evacuation of hydatidiform mole, careful hCG monitoring is mandatory since it is the most reliable and sensitive method for the early detection of gestational trophoblastic disease. In carefully selected patients in whom the risk of developing gestational trophoblastic disease is significant or when the availability of hCG testing is suboptimal, chemoprophylaxis has been shown to decrease the risk of gestational trophoblastic tumor. We report here two cases of patient, 16-year-old and 45-year-old women who experienced unusual course after the evacuation of a complete mole and markedly elevated serum β-hCG levels. The patient developed persistent gestational trophoblastic disease and were successfully treated with EMA-CO and hysterectomy.

골격근 근형질세망의 ATPase활성도에 대한 Vanillylnonanamide의 영향

박경섭,홍장희,류영수,성지연,허강민,임종호,이재흔,석정호 충남대학교 의과대학 지역사회의학연구소 1999 충남의대잡지 Vol.26 No.2

To investigate the effect of vanillylnonanamide(VN) on the ATPase activity of the sarcoplasmic reticulum(SR) of the skeletal muscle, we prepared the SR vesicles from the back muscle of the rabbit, and measured ATPase activity. The results as follows: Ca-ATPase activity was about 50% in the total ATPase activity of skeletal muscular SR. In the reaction mixture with calcium, 100μM VN increased ATPase activity to 20%, and 100 nM and 10 μM thapsigargin(THP) inhibited the ATPase activity to 50% and 60%, respectively. And 100 μM VN plus 100 nM or 10 μM THP more inhibited ATPase activity than THP alone did it. However, without calcium, 100μM VN did not affect ATPase activity, and 10 μM THP inhibited it to 41%, but VN plus THP inhibited it to 31%. The above results show that VN in the reaction mixture with or without calcium has the different action to ATPase activity when it is used alone or together with Ca-ATPase inhibitor THP. This suggests that VN might increase or decrease the skeletal SR Ca-ATPase activity through affecting the lipid membrane around the Ca-ATPase.