동맥경화에 의한 하지 허혈증 환자에서 Subintimal Angioplasty의 효과 : 단기 추적 결과를중심으로

윤상섭,허윤정,최승혜,박종경,이성,송경섭 대한혈관외과학회 2003 Vascular Specialist International Vol.19 No.2

계통변화를 고려한 자율 적응형 과전류 계전기

尹晙碩,崔勉松,李承宰,玄升鎬 明知大學校 産業技術硏究所 2004 産業技術硏究所論文集 Vol.23 No.-

In this paper present Autonomous Adaptive Digital Over Current Relay for distribution networks which acts autonomous setting using the short circuit impedance measured by relay of power systems. Automation of relay setting is one of the basic requirements for distribution automation, although manual relay setting is used at present. The short circuit impedance from a power source in distribution networks essential for the Autonomous Relay Setting changes frequently in distribution networks. In this paper the short circuit impedance is calculated with voltage and current measured in real time operation of digital relay using the Recursive Least Squares. A new method of digital relay setting in introduced using the the short circuit impedance and load current.

닭의 乾燥 筋胃粘膜 粉末 投與가 Egg Type Fowl에 미치는 效果에 對한 硏究 : 第Ⅲ報 初産日令 및 質에 미치는 影響에 對하여 Ⅲ. The effect of First laying age in a day egg quility

文勝式,朴玉潤,宋瑛敏 진주산업대학교 1982 論文集 Vol.20 No.-

This experiment was conducted to investigate the effects of the additions at the level of 0(C), 1(T_1), 2(T_2) and 3%(T_3) of Fowl Gizzard Mucouse Membrane Powder in the formula feed on the average day at first laying and egg quality with a total of 40 pieces laying hens for 4 treatments during the experimental period of 84 days from Feb.1, 1982 to April 25, the same year at the brooding laboratory, Dept. of Animal Science, Jin Ju Agricultural and Forestry Junior Technical College. The average obtained are summarized as follows: 1. The average day at first laying day was long in the order of T_1(158.8±8.30), T_2(159.9±10.13), T_3(162.6±3.53) and C(164.3±7.04) and the average weight at first laying(kg), heavy in the order of T_1(2.10±0.16), T_2(2.11±0.19), T_2(2.13±0.08) and C(2.27±2.25)(P>0.05). The egg weight at first laying(g) was heavy in the order of T_2(47.5±5.09), T_3(48.15±4.13), T_1(48.9±4.93) and C(51.99±2.13)(P>0.05) 2. The average egg weight(g) was heavy in the order of C(59.66±2.06), T_1(59.74±2.56), T_2(60.70±5.23) and T_3(62.64±3.67) and the egg shell, thickness in the order of T_3(0.362±0.036), C(0.370±0.038), T_1(0.378±0.022) and T_2(0.382±0.034)(P>0.05). The yolk and albumen weight(g) was heavy in T_2(18.20±1.57), C(18.35±.95), T_3(18.60±0.97) and T_2(18.92±1.05), T_1(33.61±1.94), C(34.32±1.65), T_2(35.37±3.77) and T_3(36.64±2.62) in those order(P>0.05).

취학전 어린이의 상악 유전치 우식증과 관련 요인

정승열,이광희,라지영,이동진,안소연,김지영,송지현,김윤희 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.4

연구 목적은 상악 유전치 우식증의 발생 요인을 규명하기 위함이었다. 연구대상은 익산시 어린이집 중에서 무작위로 추출 한 7개 어린이집의 36개월 이상 71개월 미만의 남아 214명, 여아 187명, 모두 401명이었다. 연구방법은 상악 유전치 우식 증의 유병률을 조사하고, 성별, 연령, 모유 수유 또는 인공 수유, 수유 기간, 감미 간식 섭취 빈도, 칫솔질 시작 시기, 1일 칫솔질 횟수 등을 조사하여 상악 유전치 우식증과의 연관성을 분석하였다. 연구결과를 보면, 상악 유전치 우식증의 유병률은 남아에서 43.0%, 여아에서 26.7%로서 남아가 여아보다 유의하게 높았고(P<0.01), 수유 기간 2년 이하 군에서 31.0%. 2-3 년 군에서 43.2%, 3년 이상 군에서 63.2%로서 수유 기간이 길어질수록 유의하게 증가하는 경향을 나타내었으며(P<0.01), 감미 간식을 매일 섭취하는 군에서 44.2%,2-3일에 한 번 섭취하는 군에서 31.47%, 자주 섭취하지 않는 군에서 32.4%로서, 매일 섭취하는 경우에 상악 유전치 우식증과의 유의한 연관성이 있었다(P<0.05). 연령, 모유 수유 또는 인공 수유, 칫솔질 시작 시기, 1일 칫솔질 횟수에서는 상악 유전치 우식증과 유의한 연관성이 나타나지 않았다(P>0.05). The purpose of study was to investigate the etiologic factors of maxillary primary anterior caries. The subjects of study were 401 preschool children, 214 boys and 187 girls, from 36 to 71 months old of randomly selected seven nurseries in Iksan city. The prevalence of maxillary primary anterior teeth was cross-analyzed with gender, age, breast feeding or bottle feeding, length of feeding, sweet snack intake frequency, beginning of tooth-brushing, and toothbrushing frequency per day. The prevalence was 43.0% in boys and 26.7% in girls, and there was significant association between the prevalence and gender in cross analysis(P<0.01). The prevalences of the shorter than 2 years of feeding group, the from 2 to 3 years group, and the longer than 3 years group were 31.0%, 43.2%, and 63,2%, respectively, and there was significant association between the prevalence and the length of feeding (P<0.01). Daily intake of sweet snacks had a significant association with the prevalence(P<0.05) There was no significant association between the prevalence and the variables of age, breast feeding or bottle feeding, beginning of toothbrushing, and toothbrushing frequency per day(P>0.05).

제2형 당뇨병 동물모델인 OLETF 쥐에서 장기간 라미프릴 투여가 내당능 및 췌도 베타세포에 미치는 효과

고승현,윤건호,김명미,안유배,송기호,유순집,손현식,차봉연,이광우,손호영,강성구 대한당뇨병학회 2002 Diabetes and Metabolism Journal Vol.25 No.6

연구배경:최근 소개된 HOPE(Heart Outcomes Prevention Evaluation)study의 결과에 의하면, 심혈관질환이나 이에 대한 위험인자가 1가지 이상인 9,541명을 대상으로 안지오텐신 전환효소 억제제의 일종인 라미프릴을 투여하여 사망율과 뇌졸증, 심부전, 당뇨병 합병증이 개선되었을 뿐 아니라 다른 항고혈압제에 비해 새롭게 당뇨병으로 진단되는 환자가 줄었음을 보고한바 있다. 이에 저자들은 라미프릴(ramipril)을 제2형 당뇨병 동물모델에 장기간 투여함으로써 당뇨병을 예방하거나 고혈당 상태 또는 인슐린 감수성을 개선시킬수 있는지를 알아보고자 하였다. 방법:생후 24주된 체중 400∼450g의 OLETF와 LETO 쥐를 대상으로 6개월간 라미프릴 경구투여 하였고 혈압, 24시간 단백뇨 및 인슐린 내성검사를 시행하였다. 6개월 이후로는 8주간 투여군과 대조군의 체중을 비슷하게 맞추어 내당능 상태를 평가하였고 이후 다시 8주간 고농도 포도당을 투여하였다. 경구당부하검사를 시행한 후 희생시켜 조직표본을 만들어 guinea pig anti­human insulin 항체로 염색후 DAB로 발색하여 point count 법으로 베타세포를 정량하였고, 면역염색으로 췌도의 변화와 섬유화의 정도를 관찰하였다. 결과:라미프릴을 6개월간 투여하였을 때 OLETF 쥐에서 1)체중 증가가 적었으며 2)경구 당부하검사시 포도당하 면적은 의미있게 감소하였고 3)인슐린 내성검사상 Kitt가 증가되는 경향을 보였으며 4)수축기, 이완기 혈압과 24시간 단백뇨양이 의미있게 감소하였고 5)체중을 맞추면 내당능 상태가 비슷해졌다가 고농도 포도당 주입시 다시 포도당하 면적이 대조군에서 더 증가되었다. 라미프릴 투여군에서 췌도변형 및 파괴와 탈과립, 췌도내 섬유화가 감소하였다. 결론:본 실험에서는 인슐린 비의존성 당뇨병 동물 모델인 OLETF 쥐에서 당뇨병 발생 이전 단계부터 장기간 라미프릴을 투여할 경우 체중증가가 적었고, 투여군과 대조군의 체중을 맞추었을 때는 내당능상태의 차이가 없아가 고혈당 투여시 다시 투여군과 대조군에서 의미있는 차이를 보였다. 라미프릴 투여가 베타세포의 기능면에서 이로운 효과를 보일 것으로 생각되었다. 따라서 비만한 환자에서 안지오텐신 전환효소 억제제의 장기투여는 단백뇨 감소, 혈압강하 효과 이외에 체중증가의 억제 및 당뇨병 발생을 억제할 가능성을 시사한다. Background : In a Heart Outcomes Prevention Evaluation HOPE study, ramipril, a long-acting angiotensin-converting enzyme (ACE) inhibitor, significantly reduced the death rates the number of myocardial infarctions, strokes, heart failure as well as the risk of complications related to diabetes and of diabetes itself. However, it is known that ACE inhibitors improve glucose tolerance or insulin sensitivity or reduce the incidence of diabetes. Methods : 24 week-old OLETF (Otsuka Long Evans Tokushima Fatty) rats weighing 400 ~ 450 g were used in this study. 4 groups of rats were examined in parallel for 40 weeks. The OLETF rats were randomized for treatment with an aqueous solution of ramipril (5 mg/Kg) daily [OL (RMP), n=10)] and with saline [OL (CON), n=10)]. The LETO rats were also randomized in the same was as the OLETF rats (LT(RMP), n=10, LT (CON), n=10). The blood glucose level, body weight, systolic and diastolic blood pressure was assessed every month. At 3 and 6 months, the 24hrs urinary protein concentration was measured, and as insulin tolerance test and oral glucose tolerance test were conducted in all experimental groups. After 6 months, the body·weight was matched for 2 months in each corresponding group. Subsequently, a 15% sucrose loading was done for 2 months. After the glucose tolerance test, the pancreas was excised and immuno histochemical staining was conducted for insulin to quantify the beta cell mass by a point-counting method. In addition, the islet morphology was evaluated in the pancreas. Results : Ramipril treatment for a period of 6 months improved the 2hr blood glucose level, the area under the glucose curve in the oral glucose tolerance test, insulin sensitivity in addition to lowering significantly systolic and diastolic blood pressure and 24hrs urinary protein level significantly in OLETF rats. Of note, a lower weight gain was observed in both the ramipril-treated animals at 6 months. After weight matching, the AUC g and 2hr blood glucose level values were similar between the corresponding groups, but a 15% sucrose loading worsened the AUC g value. Histologically, the islets were less disorganized and the extent of fibrosis was lower in the ramipril-treated OLETF rats in the trichrome stain. Conclusion : Long-term treatment of ramipril, a long acting angiotensin-converting enzyme inhibitor may be useful for suppressing weight gain and proteinuria in addition to having a protective effect on the islet to harmful stimuli such as hyperglycemia (J Kor Diabetes Asso 25:469~482, 2001).

艾葉粉末의 添加給與가 肉鷄에 미치는 影響

文勝式,朴玉潤,宋瑛敏 진주산업대학교 1985 論文集 Vol.23 No.-

本 試驗은 1985년 9월 20일 孵化된 肉鷄用(Hubbard) 병아리 120首를 各區當 30首씩 4개區로 나누어 晋州農林 專門大學 養鷄場에서 3주간(1985.10.19~11.8)에 걸쳐 艾葉을 C(0%), T_1(1%), T_2(2%), T_3(3%)水準으로 飼料에 添加하여 給與試驗을 하였던 바 다음과 같은 성적을 얻었기에 報告하는 바이다. 1. 增體量은 T_1區(1296.32g), C區(1274.70g), T_3區(1264.32g) 및 T_2區(1259.64g)의 순으로 나타났다(p>0.05). 2. 飼料攝取量은 C區(2715. 13g), T_1區(2738.60g), T_2區(2754.16g) 및 T_3區(2811.46g)의 순으로 나타났고 飼料要求率은 T_1區(2.113), C區(2.130), T_2區(2.178) 및 T_3區(2.232)의 순으로 나타났다(p>0.05). 3. 産肉指數는 T_1區(306.48), C區(303.01), T_2區(293.38) 및 T_3區(284.86)의 순으로 나타났다. 4. 屠體率은 ♀는 T_1區(69.45), T_2區(69.30), T_3區(67.58) 및 C區(66.45)의 순이였고 ♂은 T_3(70.03), T_2區(69.13), T_1區(67.85) 및 C區(66.58)의 순이였다. 5. 臟器重量은 대조구와 처리구간에 차이를 볼 수 없었다. 6. 經濟性을 분석한 結果 各 區別 수당수익은 T_1區(613원), C區(590원), T_2區(583원) 및 T_3區(572원)의 순으로 나타났다. This experiment was all located to 4 plots by 30 chickens per each plot with 120 chickens of broiler-Hubbard hatched at the 20th of September, 1985 and the formula feed added in the levels of 0(C plot), 1(T_1 plot), 2(T_2 plot) and 3%(T_3 plot) of Artemisia was supplied for these of each plot during 3 weeks from October, 19 to November, 8, 1985 at the poultry house, Chinju Agricultral & Forestry Technical College. The results found out the effect of Artemisia meal addition on the growth of broiler-Hubbard were as follows: 1. The weight gain(g) was heavy in the order of T_1(1296.32), C(1274.70), T_2(1264.32) and T_3(1259.64) and non significant (p>0.05) between plots. 2. Feed consumption(g) was heavy in the order of C(2715. 13), T_1(2738.6), T_2(2754.16) and T_3(2811.46) and feed conversion, T_1(2.113), C(2.130), T_2(2.178) and T_3(2.232) (p>0.05). 3. Point spread was high in the order of T_1(306.48), C(303.01), T_2(292.38) and T_3(284.86). 4. Dressing percent of female ws high in the order of T_1(69.45), T_2(69.30), T_3(67.58) and C(66.45), and of male, T_3(70.03), T_2(69.13), T_1(67.85) and C(66.58). It was generally higher in the Artemisia meal addition plot than in the control. 5. Internal organies weight was non significant differences(p>0.05) between treatment plots and control. 6. In economical analysis, net income(won) per bird of each plot was 613(T_1), 590(C), 583(T_2) and 572(T_3).

태권도 정체성 확립을 위한 태권도복 연구

이송학,홍승달,신동윤 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

As Taekwondo is a symbol of the tenth representative cultures in Korea, it is selected to this effect that the correct aspect of Korea let the people widely know to the world. It means that it is to establish the identity in Korea The identity is en aspect that one it should be truly. Accordingly, the purpose of the tenth symbols is to correct our things wrong and distorted and let the whole world known the cultural excellence of Korea rightly. Accordingly, Taekwondo needs to have identity in order to fulfill that purpose, too, But, in the costume, Taekwondo does not have our traditional and original aspects. Accordingly, this study was to investigate the historical costume and idea. The purpose of this study was to establish the identity in Taekwondo as it was to suggest the traditional Taekwondo costume. The present official soft for Taekwondo practice is a pull-over-typed garment that obstructed the view and inserted into the head. It is similar to the traditional costume in Japan, and it did not present magnificent appearance in wearing and taking off. Accordingly. it needs to seek to chang into the front-opened costume that the front side is opened, restore our tradition. and present magnificent appearance in Taekwondo. Accordingly, this study was to suggest three stages of black belt kidder's suit. This research thought that the black belt holder's suit needed to the people given of leader's qualification only. It seemed to be valid that the player or general apprentice and the person without the leader's qualification were to wear the existing official suit, pursue the practicality, and prevent the confusion. As to three stages' suit, they were divided into the soft for the grader at the 4-5 grade, at the high-grade like 6-8 grade, and at the master-grade like 9 grade. It needs to take the upper garment from the existing pull-over-typed garment to the front-opened type. As to the difference by the stage, it found out that it could show the difference in each stage as the whether it faced the different color line to the collar, Doryori, sleeve edge, and pants' here, etc, or the difference of patterns. It was considered as 9 grade, a symbol of best stage, had to present magnificent appearance in wearing the suits with the whole traditionally honored colors. But, this study was insufficient in the research on the traditional color and pattern so it needs to follow-up research that reaches to that. And. it needs the scientific and ergonomic research about the materials of costume and suit consistent with the functionality. Also, it needs the aesthetic research in order that the dignity and position may be reflected on the suits for Taekwondo practice that the persons in martial arts have to show.

Ba-Ferrite를 이용한 자기 연마재 개발

김희남,송승기,정윤중,윤여권,김희원,조상원,심재환 한국안전학회 2003 한국안전학회지 Vol.18 No.2

The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision techniques and has an aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper we deals with the development of the magnetic abrasive with the use of Ba-Ferrite. In this development, abrasive grain WA has been made by using the resin bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Ba-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only WA abrasive and Ba-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From SEM analysis, we found that WA abrasive and Ba-Ferrite were strongly bonding with each other.

우리나라 어린이와 청소년의 구강건강을 위한 공공서비스의 현황과 전망

이광희,김지영,송지현,김윤희,임경욱,정승열 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

소아치과학이 목표로 하는 어린이와 청소년의 구강건강을 달성하기 위하여는 민간 치과의료기관에서 내원 환자를 대상으로 하는 진료만으로는 한계가 있으며 공공서비스(公共service)의 역할이 필요하다. 학교구강보건설이 설치된 초등학교는 전체의 7.2%이었고,초등학교 중에서 불소용액양치사업을 수행한 비율은 57.5%, 급식 후 집단잇솔질을 한 비율은 46.9%이었으며,초등학생 중에서 구강보건교육을 받은 비율은 48.0%, 치아홈메우기를 받은 비율은 12.4%이었다(2006년). 0∼6세 영유아의 약 42%가 지난 1년간 구강검진,불소도포,치면세마,치아홈메우기 중 하나 이상의 예방적 치과진료를 받았으며,받은 장소는 교육시설이 약 18%, 보건소가 약 1%이었다(2005년). 불소농도가 조정된 수돗물을 마시는 인구 비율은 전국 평균이 5.7%이었다(2006년). 학교구강보건사업의 발전을 위해서 행정의 일원화,보건교사에 대한 교육,구강보건교사제도의 도입,순회 학교치과의사와 학교치과병원을 통한 포괄적 진료서비스의 제공 등을 고려할 수 있을 것이다. 또한 아동·청소년 주치의제의 도입으로 민간기관을 통해 공공서비스를 강화하는 방안이 검토되고 있다. To achieve the dental health of children and adolescents which is the objective of the pediatric dentistry, the role of the public service should be increased. The basis of the public service is established by many laws of which the Dental Health Law is most important. The percentages of primary schools that had the school dental health clinic, that implemented the fluoride rinsing program, and that implemented the group toothbrushing after lunch were 7.2%, 57.5%, and 46.9%, respectively, and the percentages of primary school children that received the dental health education and that received the fissure sealing were 48.0% and 12.4%, respective1y(2006). About 42% of infants and preschool children from 0 to 6 years received preventive dental care in the last one year, at the nursery or kindergarten(18%) or at the health center(1%)(2005). The percentage of the health centers that implemented water fluohdation was 11.3%, and the percentage of the population who drank the fluoridated water was 5.7 %(2006). It was suggested that the school dental health administration should be unified, that dental health teachers should be employed, and that the comprehensive dental health care should be supplied to all the children and adolescents through the circuit school dentists and the school dental hospitals in the long term. Also, the dentist in charge system for the children and adolescent was suggested.

다카야스 동맥염과 동반된 초점성 분절성 사구체경화증 1예

강신명,송영수,김주성,윤수영,이루다,최규헌,조승연,이호영,한대석,정현주' 대한신장학회 2000 대한신장학회잡지 Vol.19 No.5