피압수가 존재하는 연약점토지반 내에 연직배수재의 관입깊이에 따라 압밀거동에 미치는 영향

정성교,진현식,백승훈 동아대학교 건설기술연구소 1999 硏究報告 Vol.22 No.2

In the Yangsan area developed for housing complex the soft clay deposited as about 20 to 40 meters in thickness and there was the Artesian pressure of about 20kPa under the clay stratum. To investigate the consolidation behaviour due to partially or fully penetrating vertical drains in the clay layer, a finite element analysis was carried out in this study. As a result of analysis, it was shown that the consolidation rate and the final settlement for the case of fully penetrating vertical drains were faster and less than of partially penetration, respectively.

골반 골절에 동반된 동맥 출혈에서의 경피적 동맥색전술의 유용성

양승부,임한혁,최교창 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1

Purpose : To determine the usefullness of transcatheter embolization of arterial bleeding in patients with pelvic bone fracture. Materials and Methods : Between March 2003 and December 2004, we evaluated 13 injuried arteries of eight patients with pelvic bone fracture, All patients underwent angiography, followed by transcatheter arterial embolization using gelfoam. We investigated the vital sign, survival rate and complication of transcatheter arterial embolization. Results : Angiography revealed extravasation of cantrast media in six patients; extravasation and abrupt cut-off of an artery in two. The injured arteries involved(n=13) were internal pudendal(n=4), obturator(n=3), inferior gluteal(n=3), iliolumbar(n=2) and superior gluteal artery(n=1). Transcather arterial embolization was technically successful and there was no complication in all cases. Old age patients(n=2, >60years) died due to hypovolemia and pulmonary complication. Conclusion : Transcatheter arterial embolization of arterial bleeding is a useful procedure in lowering the mortality and complication in pelvic bone fracture.

農村主婦의 疲勞度測定연구

李承敎 水原大學校 1989 論文集 Vol.7 No.-

For the study of fatigue measure for rural housewives, 25persons were selected. Mean age was 38.9year-old, height 155.9㎝ and weight 54.6㎏. Fatigue degree using interview method was 28% of self-consciousness fatigue and farmer's syndrome. It means that rural houswives are tried state. Fatigue degree using flicker tester and heart-rate checker, was varied individually. And age is significantly correlated with fatigue degree.

경도관 동맥색전술을 이용한 비정상 자궁출혈의 치료

양승부,최교창,이상진,정영진,임한혁,한효상,황인철,조환성 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1

Objective : Our purpose of this study is to evaluate the effectiveness of the transcatheter arterial embolization for the management of abnormal uterine bleeding. Materials and Methods : 14 patients with massive or recurrent uterine bleeding underwent percutaneous transcatheter arterial embolization between February 2003 and September 2004. We reviewed 14 cases of uterine artery or internal iliac artery embolization using gelfoam or PVA particles. Results : Good management of uterine bleeding was achieved in 13 of 14(93%) cases. The cause of abnormal uterine bleeding was myoma(5 case), post D & E bleeding(3), acquired vascular malformation(3), pseudoaneurysm(1), adenomyosis(1), and endometrial hyperplasia(1). Conclusion : Transcatheter artery embolization is an effective and life-saving procedure in massive or recurrent uterine bleeding. Early diagnosis and prompt transcatheter arterial embolization is a useful mangement of uterine bleeding.

고섬유소(α-cellulose) 섭취가 카드뮴 섭취 흰쥐의 지질대사와 대퇴골 강도에 미치는 효과

이승교,이성현 수원대학교 기능성생명소재연구소 2004 자연과학연구논문집 Vol.3 No.1

The advantages of dietary fiber were well known, especially soluble dietary fiber to cardiovascular disease. But It is more quantities intake of insoluble fiber in our diet table. This study was performed to investigate the high intake effect of insoluble dietary fiber(α-cellulose) an cadmium drink rats' serum and liver lipid contents and femur strength. Thirty two male rats of Sprague-Dawley strain weighing 200g were divided into 4 groups: control, control with cadmium drink, high fiber, fiber with cadmium drink. Feed intake was not significantly different in 4 groups but weight gain and FER were lower in high fiber groups significantly. Liver weight were not different in cadmium drink or not, but high fiber groups were significantly low weight. Kidney weight were not different in 4 groups. The length of small intestine was short in high fiber group. Serum lipids were lower in high fiber groups. But cadmium drink group were high contents of serum triglycerides(90.9mg%) than control(65.7mg%). Liver lipids also were lower in high fiber groups. Cadmium drink made lower triglyceride contents but no-influenced in total cholesterol contents. Fecal excretion of lipids were not significantly different in 4 groups. The weight of femur tended no differ in fiber or cadmium drink, but ash contents and femur strength were lower in cadmium drink. The results of this study indicated that the lower effect of liver and serum lipids contents and serum triglyceride evoked by cadmium drink in 10% α-cellulose diet. But deterioration of femur strength and ash contents evoked by cadmium drink were not effected in 10% α-cellulose diet.

韓國女子農民의 基礎代謝量과 安定代謝量의 測定

李承敎,崔英淑 水原大學校 1988 論文集 Vol.6 No.-

農業에 從事하는 健康한 農村主婦 10名을 선발하여 基礎代謝量과 安定代謝量을 測定하였다. 對象者의 平均 年齡은 44歲이며, 身長 152.2㎝, 體重 53.3㎏이었다. 尿中의 窒素排泄量은 하루 平均 9.16g이었다. 基礎狀態에서 分當 에너지消費量은 0.884㎉이며 하루의 基礎代謝量은 1273㎉이었다. 또한 安定代謝量은 基礎代謝量보다 26.7%가 더 높아서 1614㎉를 보였으며 이 때 1分當 酸素消費量 231.8㏄였으며 分當 에너지 消費量은 1.121㎉를 나타내었다. This Study was carried out on 10 persons of female farmers to determine the basal and rest metabolism. Their mean age was 44 year-old and the mean daily urinary nitrogen excretion was 9.16g. The energy metabolism was determined by indirect calorimetry using Douglas bag and Scholander's gas analyzer. The measured basal metabolism of subjects was 1273㎉ per day and the rest metabolism was 1614㎉ per day.

산업재해에 의한 수부손상의 임상적 고찰 (Ⅱ)

서형교,이병일,박승하,김우경,정전은 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.1

Industrial hand injury causes not only loss of hand function but also many socio-economic problem, because they are low socio-economic class, age of productivity and unemployed status due to functional disability of hand. Mainly, inexpert workers suffer from industrial hand injury (62%) probably due to absence of safe guard, safe-education and occupational training. Therefore, industrial hand injury may be diminished by preventive measure such as adequate safeguard, safe-education and occupational training. Statistical analysis was carried out retrospectively on 495 patients with industrial hand injury at Dept. of plastic and Reconstructive Surgery, Korea University College of Medicine, KURO hospital, from September 1986 to December 1988, and following items are studied. 1. Constitutions of industrial compartments and labors in Kuro and Youngdeungpo region. 2. Educational status of the patients. 3. Area distribution. 4. Monthly distribution. 5. Day of week distribution. 6. Onset time distribution. 7. Duration of occupation in the patients. 8. Causative factor. 9. Underlying factor. 10. Physical treatment and its duration. 11. postoperative grasping power. 12. Aesthetic result. We want this paper attribute to reduction of industrial hand injury.

우지와 고섬유소가 카드뮴 음용수 섭취 흰쥐의 지질대사와 대퇴골강도에 미치는 영향

이승교,이성현 수원대학교 기능성생명소재연구소 2004 자연과학연구논문집 Vol.3 No.2

This study was performed to investigate the high intake effect of beef tallow and α-cellulose on cadmium drink rats' serum and liver lipid contents and femur strength. Thirty two male rats of Sprague-Dawley strain weighing 200g were divided into 4 groups: control(C), control diet and cadmium drink(C-Cd), beef tallow with high fiber(BT), beef tallow with high fiber and cadmium drink(BT-Cd). Feed intake was not significantly different in 4 groups but weight gain and FER were lower in two Cd drink groups significantly. Liver weight was low in two cadmium drink groups and BT group compared control. Kidney weight were not different in 4 groups. The length of small intestine was short in BT group but cadmium drink made the length longer. Serum lipids were a little high in two cadmium drink groups, but not detected statistical significance. Serum albumin, calcium and glucose contents were significantly higher in BT and cadmium dirnk groups. Liver TG was increased in BT, but cadmium drink made lower triglyceride contents. Liver total cholesterol content was low in BT and Cd drink groups than that of control. Fecal excretion of lipids were not significantly different in 4 groups. The weight of femur was no different significantly in four groups, but ash contents and femur strength were lower in cadmium drink and BT groups. The results of this study indicated that the lower effect of liver and serum lipids contents and serum triglyceride evoked by cadmium drink. There was no amelioration effect evoked by cadmium drink on beef tallow and α-cellulose diet. The deterioration effect found in serum glucose, albumin and calcium contents. in beef tallow and α-cellulose diet.

농촌 주민의 혈액영양상태에 따른 영양교육 효과

李承敎 水原大學校 1997 論文集 Vol.15 No.-

The purpose of this study was to assess the nutrition education program for older adults on rural area. 62 adults (mean age:56±12) participated in nutrition education program. Data collection includes serum and urine collected for health state. The impact of on nutrition KAP(knowledge attitude and practice) and retention was examined among participants who were assessed at program entry and after 4 times of education and 1 month of follow-up. The results indicates, the participants were composed 35 persons of under 60-year-old and 27 persons over 60 year, female 49 persons but male 13 only. The state of serum composition, albumin and calcium content of female(3.3±1.1g/dl 7.0±3.6mg/dl) was significantly lower than males(4.7±1.1g/dl, 11.2±5.0mg/dl). TG and cholesterol contents of female(164±124mg/dl, 205±32mg.dl) were higher than male(102±108mg/dl, 193±22mg.dl) but not significantly different. The urine excretion of calcium(13.4±9.0mg/dl) and urea(739±446mg/dl) also significantly lower of female than males(19.7±11mg/dl, 1181±416mg/dl). At the question of nutrition attitude, the participants improved significantly between pre and post education(the score (maxinumscore:10) of pre, post and after 1 month, 6.7±1.8, 7.1±1.5, 7.1±1.9), and also attributed personal feeling health by CMI, but food habit was not significantly ameliorated. The differences of age and sex group were compared, under 60-year-old group had better practice score than over, and female was better attitude and practice score than male.

칼만필터를 이용한 유도전동기의 속도추정

鄭敎範,李承眩 홍익대학교 산업기술연구소 1999 産業技術 Vol.9 No.-

This paper investigates Kalman Filter as the rotor speed esitmator for the speed sensorless vector control of an induction machine. The Kalman filters as the rotor speed esitmator are classified as full-order Extended Kalman Filter, a minimum-order Extended Kalman Filter and a reduced-model Extended Kalman Filter. Computer simulations are performed to prove the usefulness of the Kalman filters as the rotor speed esitmator for the speed sensorless vector control of the induction machine. In the simulation, the induction machine and the inverter using the switching space vector PWM algorithm are included. The Extended Kalman Filter for the speed sensorless vector control shows the roboustness to the noises in the measurement signals and the excellent characteristics for the rotor speed control under the various operating conditions. The characteristics of the Kalman Filters as the rotor speed estimator are compared to each other through the computer simulations. Comparing to Full-order Extended Kalman Filter, the minimum-order Extended Kalman Filter and the reduced-model Extended Kalman Filter have the advantages of fast computation due to the simplified modeling and also show the robustness to the measurement noises variation.