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국민학교 아동의 구강보건관리 및 지식에 대한 실태조사(II) - 전북 부안군 농촌지역을 중심으로 -
김연수,강성경,Kim, Yun-Su,Kang, Seung-Gyeung 대한치과기공학회 1989 대한치과기공학회지 Vol.11 No.1
We investigated 974 male and female students who are in 4th, 5th and 6th year of 8 elementary schools are located win Puan-kun, the farm area of Chollabuk-do, and the results are as follows. 1. Visiting dental clinic in order to be treated for dental caries hold the highest rate as 26.1% of male students and 30.3% of female students. 2. On fear when children visit dental clinic, first, 25.6% of male students and 35.1% of female students mark the highest rate as some what fear. Second, 23.1% of male students represent to be usual and 29.4% of female students represent to be very fear. There fore it speaks for dissimilarity in character between male and female students. 3. On reason of developing dental caries, 62.5% of male students and 55.8% of female students replied that it was developed because they frequently ate the sweet things. 4. Children who pull out decidous teeth alone mark the highest rate as 44.7% of male students and 38.6% of female students. 5. On important thing for ordinary dental health, 56.2% of male students and 58.5% of female students as the highest rate replied that they often brushed their teeth.
김연수,신무학,송윤희,정희선,Kim, Youn-Su,Shin, Moo-Hak,Song, Yun-Hee,Chung, Hee-Sun 대한치과기공학회 2002 대한치과기공학회지 Vol.23 No.2
This Study aims at investigating the tendency of individual problems that the students at the departments of dental technology are faced with, their efforts and types of activities to solve the problems. Surveyed for this purpose were 700 freshmen to juniors enrolled in the departments of dental technology at the universities across the country and they were analyzed by area, grade and sex. 1. Tendency of Problems The areas of problems the students at the departments of dental technology considered as most serious were health, human relation, view of value and economy in sequence, while the areas they considered as least serious were future course and employment. In general, there were tendencies as follows: divided by grade, the higher the grades of the students are, the higher scores of problems they get(F=12.14, P=.000) : in the areas of health and human relation, as the grade gets higher, the scores of their problems also increase, accordingly(F= 17.58, P=.000)(F=8.39, P=.000) : in the areas of economy, parents and home, freshmen and juniors are found to have higher scores of problems compared to sophomores,:F=7.89, P=.000)(F=11.63, P=.000) : divided by sex, female students recorded higher scores of problems than their counterparts(F=31.85, P=.000) 2. Efforts for Problems View of value, human relation, parents and home appeared to be the areas for which the students made the highest rate of efforts in sequence while the areas for which they paid lowest grade of efforts were health and economy. In other words, the students gave higher scores for human relation and view of value in terms of tendency as well as efforts of problems, while they rated high for health and economy in the tendency but low in the efforts of problems. Divided by grade, freshmen and juniors appeared to score higher points than sophomores in their efforts to solve problems, even though juniors made relatively higher efforts than freshmen(F=6.53, P=.002). Divided by sex, female students scored higher points in their efforts than males(F=15.98, P=.000) 3. Difference of Efforts to Solve Problems. In the analysis into the scores of difference showing the disagreement between the tendency of problems and the efforts to solve problems, the area of health was rated as highest, followed by economy. There was little difference of scores between human relation and view of value, an indicator of agreement between the scores of problems and efforts. The difference of scores between future course and employment, between liberal arts and recreation, between characters/parents and home/school work turned out to be negative in the listed sequence, leading to a conclusion that the students enrolled in the departments of dental technology are making more efforts to solve problems than actually needed in most areas. By grade, there was a significant difference only in the area of health(F=3.00, P=.050). This difference itself was widening as the students come to higher grades. By sex, females showed bigger difference than males. 4. Types of Activities to Solve Problems. The analysis into types of activities to solve problems revealed that the surveyed students seemed to actively cope with the problems in all areas, relying at the same time on personal relationship. Especially in the areas of health, economy, parents, home, human relation, future course and employment, the students appeared to deal with the problems actively as well as emotionally.
성별과 연령에 따른 치과보철물 양상에 대한 조사연구 - 전자북도의 중소도시를 중심으로-
김연수,전주연,Kim, Yun-Su,Chun, Ju-Yean 대한치과기공학회 1990 대한치과기공학회지 Vol.12 No.1
The purpose of this study were to investigate the patterns of prosthetic restorations according to sex and age. We had surveyed the out-patents of dental clinics it Jeon-Ju, Iri and Gun roan area. The abtained result were as follow ; 1. The patterns of prosthetic restoration in female was higher than male and 20$\sim$30 age groups was higher than others. 2. The crown was higher in prosthetic restoration. 3. The procelain appliance area was high in male and female on 20$\sim$29 age. 4. The partial denture was higher than full denture in both sex. 5. The crown appliance area was not different in both sex. 6. The 3 unit bridge was higher than other bridge in both sex. 7. The porcelain appliance area was high in male and female on upper anterior. 8. The inlay appliance area of lower posterior was higher than upper posterior. 9. The upper posterior was high in male, and the lower posterior was high in female in partial denture. 10. The full dentur was high in old age group.
신부전 만성도 평가에 있어 혈중 carbamylated hemoglobin 치의 유용성
김연수(Yon Su Kim),한진석(Jin Suk Han),진호준(Ho Jun Chin),이서진(Seo Jin Lee),조윤숙(Yun Suk Cho),안규리(Ahn Cu Rie),김성권(Suhng Gwon Kim),이정상(Jung Sang Lee),장인진(In Jin Jang),신상구(Sang Gu Shin),허우성(Woo Seong Huh) 대한내과학회 1996 대한내과학회지 Vol.51 No.3
N/A Objective: Differentiation of acute from chronic renal failure is an important but difficult task in treating the azotemic patients. It is known that the degree of carbamylation reflects the duration and the severity of the uremia. To assess the usefulness in differentiating acute(ARF) from chronic reanl failure (CRF), we measured the carbamylated hemoglobin (CarHb). Methods: We measured CarHb(measured as ㎍ of carbamyl valine per g hemoglobin) prospectively in 64 patients with azotemia (24 ARF, 40 CRF) referred to the Seoul National University Hospital. High performance liquid chromatography was used for measuring CarHb. Thirteen normal controls were also studied to match 64 patients. Results: Patients with ARF had lower median (range) CarHb concentration than those with CRF [56.0(24.6-97.1) ㎍CV/gHb vs 120.4(31.7-286.5) p<0.01]. It is not different from normal control [56.0 (24.6-97.1) vs 40.9(19,9-62.9); p<0.05]. The ratio of CarHb to serum creatinine(mg/dl) was lower in ARF than in CRF [10.5(4.9-34A) vs 18.2(4.7-52.2) p<0.01]. The cut-off value for CarHb to be CRF is 80 ㎍CV/gHb(sensitivity 70%, specificity 71%, positive predictive value 80%). Conclusion: The carbamylated hemoglobin is useful in determining the chronicity of the renal failure and it could be of clinical value in deciding the further management.
성인의 원발성 초점성 분절성 사구체 경화증 ( FSGS ) 의 예후 및 예후 인자
김연수(Yon Su Kim),안규리(Cu Rie Ahn),한진석(Jin Suk Han),김성권(Shung Gwon Kim),이정상(Jung Sang Lee),김성균(Seong Gyun Kim),김현리(Hyun Lee Kim),황영환(Young Hwan Hwang),이상구(Sang Goo Lee),이정은(Jung Eun Lee),오윤규(Yun Kyu Oh) 대한신장학회 2002 Kidney Research and Clinical Practice Vol.21 No.4
배 경: 성인에서 FSGS는 그 발생율이 증가하고 지속적인 스테로이드 치료로 예후가 향상됨이 제시되면서 질병에 대한 관심이 높아지고 있다. 그러나 우리나라 성인 FSGS의 임상상과 예후에 대한 보고는 많지 않다. 본 연구에서는 성인 FSGS의 임상상을 살펴보고 예후에 관계하는 임상 인자를 밝히고자 하였다. 방 법 : 1985년부터 1999년까지 서울대학교병원에서 조직검사로 확진된 성인 환자를 대상으로 연구를 진행하였고 이차적 원인이 있는 경우는 제외하였다. 조직검사 당시의 임상상을 분석하였고, 10주 이상 추적 관찰된 환자를 대상으로 신기능 악화여부를 후향적으로 분석하였다. 결 과: 대상 환자는 총 92명이였으며, 이 중 47명(51%)이 신증후군(NS) 범주에 속하였다. 남녀비는 1.7 : 1이였으며 조직검사시 신기능 저하가 51%에서 관찰되었고 고혈압은 45%에서 나타났다. NS군과 신증후군 이하의 단백뇨군(non-NS)간에 고혈압유무, 신기능 저하 등의 초기 임상상의 차이는 없었다. 이들 중, 10주 이상 추적 관찰된 환자는 88명이였고, 관찰 기간은 37.1개월(2.5-185)이였다. 관찰 기간동안 14명에서 신기능이 악화되었다. 신기능 악화군과 유지군간에 조직 진단시 임상상의 차이는 없었으며, 신기능 악화 여부에 대한 독립적 예후 인자는 단백 뇨량의 정도와 조직 검사시의 신기능, 스테로이드 치료 여부였다. 전체적으로 5년 신기능 유지율은 80%로 나타났다. NS군에서 스테로이드 치료를 한 환자는 77%(34/44명)이였으며 그 중 1명(3%)에서 신기능 악화소견을 보였다. NS군에서 스테로이드 치료를 하지 않은 10명 중 6명(60%)의 신기능이 악화되었다. 결 론 : 위의 결과에서 밝혀진 성인 FSGS 환자의 예후 인자에 대한 적극적인 조절이 필요하며 향후 스테로이드 치료법의 유용성을 확인하기 위한 전향적인 연구가 필요하다. N/A
농작업 부하 데이터를 활용한 80 kW급 전기구동 AWD 트랙터의 시뮬레이션 모델 개발
백승윤(Seung Yun Baek),김완수(Wan Soo Kim),김연수(Yeon Soo Kim),김용주(Yong Joo Kim),박철규(Cheol Gyu Park),안수철(Su Cheol An),문희창(Hee Chang Moon),김봉상(Bong Sang Kim) 유공압건설기계학회 2020 드라이브·컨트롤 Vol.17 No.1
The aim of this study is to design a simulation model for an electric All-Wheel-Drive (AWD) tractor to evaluate the performance of the selected component and agricultural work ability. The electric AWD tractor consists of four motors independently for each drive wheel, and each motor is combined with an engine generator, a battery pack, and reducers. The torque data of a 78 kW-class tractor was measured during plow tillage and driving operation to develop a workload cycle. A simulation model was developed by using commercial software, Simulation X, and it used the workload as the simulation condition. As a result of simulation analysis, the drive system, including an electric motor and reducers, was able to cope with high load during plow tillage. The SOC (State of Charge) level was influenced by the output power of the motor, and it was maintained in the range of 50~80%. The fuel consumed by the engine was about 18.23 L during working on a total of 8 fields. The electric AWD tractor was able to perform agricultural work for about 7 hours. In the future study, the electric AWD tractor will be developed reflecting the simulation condition. Research on the comparison between the simulation model and the electric AWD tractor should be performed.
일반연제 발표 : 한국인에서 발생하는 IgA 신병증과 초점성 분절성 사구체 경화증에서 interleukin-10 promotor region의 유전적 다형성에 관한 연구
채동완 ( Chae Dong Wan ),김성균 ( Kim Seong Gyun ),오국환 ( O Gug Hwan ),윤종우 ( Yun Jong U ),구자룡 ( Gu Ja Lyong ),김근호 ( Kim Geun Ho ),노정우 ( No Jeong U ),임춘수 ( Im Chun Su ),김연수 ( Kim Yeon Su ),김성권 ( Kim Seong Gwo 대한신장학회 2002 춘계학술대회 초록집 Vol.21 No.1