2002 월드컵 축구대회에서의 히딩크(Guus Hiddink) 코칭 전략에 관한 스포츠사적 연구 : Rainer Martens의 Successful Coaching 이론을 중심으로

곽형기,현선희 한국체육사학회 2004 체육사학회지 Vol.13 No.-

This thesis compares and analyzes Hiddink's successful coaching strategy with Rainer Marten's 'Successful Coaching' theory in 2002 world cup soccer general meeting. This study sees that Hiddink is one of the representatives of leading the successful korean world cup soccer team. However, the success of the korean world cup soccer team is not only Hddink's efforts but also coaching staffs, athletes, soccer society staffs and korean people who give a soccer team to a great support. The most of 'successful Coaching' theory of Rainer Martens agree with the analyzed result into Hiddink's coaching philosophy, clearly scientific training programs, and a very cautious team system and management. It's the perfect example to various soccer leaders that is the Hiddink's role and philosophy as a leader, the democratic and human attitude toward relating with athletes, coaching staffs and a leader, the selecting athletes in basics of the real ability, the using of the appropriate principles of reinforcenrent(punishment and compensation theory), the testing and training of the basic body strength, and the organization and management of soccer team. The korean soccer team's experiences by Hiddink may be important to being ready for next world cup and training and intensifying athletes.

이온교환막을 통한 전해질 용액의 이동 특성

박형관,한정우,선용호,조영일 연세대학교 산업기술연구소 1989 논문집 Vol.21 No.1

The transport characteristics of electrolyte osmosis through the perfluorinated cation exchange membrane, Nafion NX-430, was inverstigated. The order of electrolyte permeation velocities of single valent ions was:??>??>??>??. At constant concentration ratio the electrolyte fluxes have shown maximum and minimum values with respect to electrolyte concentration, which is called anomalus osmosis. The correlations between potassium ion fluxes and concentration ratios was shown as follows. ?? The effective charge density calclated from membrane potential was 1% of the fixed charge concentration.

섬유강화 플라스틱 복합재의 성형공정에 관한 연구 : 일방향 섬유강화 복합재의 점도측정 및 유동해석 Flow analysis and Measurement of viscosity of Unidirectional Fiber Reinforced Plastic Composites

조선형,안종윤,이국웅,윤성운 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.2

During a compression molding process of Unidirectional Fiber Reinforced Thermoplastic Composites, control of filling patterns in mold and distribution of fiber is needed to predict the effects of molding parameters on the flow characteristics. To obtain an excellent product and decide optimum molding conditions, it is important to know the relationship between molding conditions and viscosity. In this study, the anisotropic viscosity of the Unidirectional Fiber-Reinforced Polymeric Composites is measured by using the parallel plastometer. The model for flow state has been simulated by using the viscosity. The composites is treated as an incompressible New-tonian fluid. The effects of longitudinal transverse viscosity ratio A and slip parameter α on buldging phenomenon and mold filling patterns, are also discussed.

치면열구전색제의 열구 침투에 primer의 효과

정혜선,최병재,최형준,이제호 大韓小兒齒科學會 1999 大韓小兒齒科學會誌 Vol.26 No.2

본 연구의 목적은 치면열구전색제 수복시에 상아질 접착제의 primer 도포의 치면열구전색제 열구 침투도 향상 효과를 확인하는 것으로 발거된 영구 구치상에서 통상적으로 치면열구 전색제를 도포한 대조군과 Scotchbond™ Multi-Purpose system과 ?? 2 system의 primer 도포 후에 치면열구전색제를 도포한 실험군들의 열구 기저부까지 전색제 침투 성공률을 비교하여 다음과 같은 결론을 얻었다. 1. Scotchbond™ Multi-Purpose system과 All-Bond 2 system의 primer를 사용한 군의 열구 기저부까지 치면열구전색제 침투 성공률은 primer를 사용하지 않은 대조군보다 높았으나 통계학적으로 유의성 있는 차이는 없었다(p>0.05) 2. 열구 깊이와 폭 및 '깊이/폭' 값은 열구 기저부까지 전색제 침투성공율에 대하여 통계학적으로 유의성 있는 효과를 나타내었다.(p<0.05) 3. 열구 기저부까지 전색제 침투 성공률은 열구 깊이가 25㎛ 증가할 때마다 약 0.9배로 감소하였고, 열구 입구의 폭이 25㎛ 증가할 때마다 약 1.1배로 증가하였으며, 열구의 '깊이/폭' 비율이 1 증가할 때마다 약 0.6배로 감소하였다. The objective of this study is to confirm the effect of dentine bonding primer application on penetration of sealant. Extracted permanent molars were used to compare penetration success rate of control group (sealant application only) and experimental groups (sealant application after applying the primers of Scotchbond™ Multi-Purpose system and All-Bond 2 system). The following results were obtained: 1. The experimental groups using the primers showed increased sealant penetration success rate to the base of fissure when compared to control group but there was no statistically significant differences(p>0.05). 2. The depth, width and 'depth/width' value of fissure had statistically significant effect on sealant penetration success rate(p<0.05). 3. The penetration success rate decreased about 0.9 times as the depth of fissure increased every 25㎛, and increased about 1.1 times as the width of the fissure orifice increased every 25㎛, and decreased about 0.6 times as the 'depth/width' value increased every 1. From the above results, it can be concluded that fissure morphology had a great effect on sealant penetration and for better penetration, use of dentine bonding primer can be helpful but it needs more study in clinical bases.

광주광역시 치매의 유병률과 위험인자의 도시-농촌 지역 비교

신일선,김재민,윤진상,김석재,양수진,김웅장,이승현,강순아,곽지영,이형영 大韓神經精神醫學會 2002 신경정신의학 Vol.41 No.6

연구목적 : 본 연구의 목적은 광주광역시의 도시 및 농촌 지역에 거주하는 노인에서 치매의 유병률과 위험인자를 조사하고자 하였다. 부가적으로 이 두 지역간에 치매의 유병률과 위험인자를 비교하고자 하였다. 방 법 : 광주광역시의 전형적인 도시와 농촌지역의 65세 이상의 노인(N=1,598)을 대상으로, 2단계의 역학연구를 수행하였다. 1차 선별 단계에서는 38명의 훈련된 연구보조원이 대상노인을 면담하여, 사회인구학적 특징을 조사하고 한국판 간이정신상태검사(Korean version of Mini-Mental State Examination ; MMSE-K)로 평가하였다. 2차 임상 진단 단계에서는 1차 단계에서 MMSE-K 점수가 24점 이하인 노인(N=431)을 대상으로, 전문연구팀의 임상적 평가를 통해 치매를 진단하고 원인질환별로 알쯔하이머병(Alzheimer's disease ; AD), 혈관성 치매(vascular dementia ; VaD) 및 기타 치매로 분류하였다. 대상노인에서 치매의 유병률을 측정한 후, 광주광역시 전체 노인의 연령보정 유병률을 산출하였다. 전체 대상에서 AD의 위험인자를 조사한 후, 도시와 농촌군으로 나누어 분석을 다시 시행하였다. 결 과 : 1차 및 2차 단계의 참가율은 각각 71.0%(N=1,134) 및 83.2%(N=410) 였다. 연구 참여 노인(N=1,134)에서 전체 치매, AD 및 VaD의 유병률은 최소 각각 9.7%, 5.2%, 1.8%였다. 광주광역시 전체 노인의 연령 보정 유병률은 각각 10.7%, 5.7%, 1.9%인 것으로 산출되었다. AD의 독립 위험인자는 고령, 여성, 무학이었다. 도시와 농촌에 따른 유병률의 차이는 파악되지 않았다. 그러나 AD의 위험인자는 지역에 따라 차이가 있었다. 도시 노인에게는 무학만이, 농촌 노인에게는 고령과 여성인 경우가 독립 위험인자였다. 결 론 : 광주광역시 노인에서 치매의 유병률은 높았고, 이는 국내 다른 지역에서 수행된 선행연구 결과와 유사하였다. 알쯔하이머형 치매의 위험인자는 도시와 농촌에 따라 다른 결과를 보였다. 본 연구 결과는 한국에서의 치매의 실태를 반영하며, 치매의 적절한 관리와 예방을 위해서는 지역성 특성이 고려되어야 함을 시사한다. Objectives : The purpose of this study was to investigate the prevalence rate and risk factors of dementia in an urban and a rural sample of older persons in the metropolitan Kwangju area, Republic of Korea. In addition, the prevalence rate and risk factors of dementia between the two samples were compared. Methods : A two-phase epidemiological study of residents aged 65 or over(N=1,598) was conducted in a highly developed, urban and a non-contiguous, poorly developed, rural area of metropolitan Kwangju. In the first(screening) phase, 38 trained research assistants collectively peformed in-home interviews for all participants. Detailed sociodemographic characteristics were gathered and the Korean version of Mini-Mental State Examination (MMSE-K) was administered. In the second (diagnosing) phase, diagnosis of dementia was established for those scoring 24 or less on the MMSE-K in the screening phase(N=431), and etiological types of dementia were classified to Alzheimer's disease(AD), vascular dementia(VaD) or miscellanous type by two teams of experts. Prevalence rate of dementia was determined in the participants, and age-standardized prevalence rate adjusted by age distribution in metropolitan Kwangju was estimated. For AD, the risk factors were investigated in all participants, and analyses were repeated for the urban and rural samples separately. Results : The participating rates in the first and second phases were 71.0%(N=1,134) and 83.2%(N=410), respectively. In the participants, the prevalence rates of dementia(all types), AD and VaD were 9.7%, 5.2% and 1.8%, respectively. The age-standardized prevalence rates were 10.7%, 5.7% and 1.9%, respectively. Aging, female gender and no education(complete lack of formal education) were identified as independent risk factors for AD. No difference between the urban and rural samples was observed in the prevalence rates of dementia(all types), AD and YaD. However, risk factors for AD differed between these areas. In the urban sample, no education was the only significant factor ; whereas, aging and female gender were identified as risk factors in the rural sample. Conclusion : A high prevalence rate of dementia was observed among old persons in metropolitan Kwangju, consistent with previous studies conducted in other Korean areas. The risk factor profi1es for AD differed between urban and rural settings. The results of this study reflect the current status of dementia in Korea and suggests that appropriate management and prevention strategies for dementia should be tailored toward the geographic settings.

제I급 부정교합 환자의 발치와 비발치 교정치료 전,후의 두부방사선 계측학적 비교 연구

유형석,백형선 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.5

연세대학교 치과대학 부속병원 교정과와 영동 세브란스 병원 치과 교정과에 내원하여 최근에 교정치료가 끝난 제 I급 부정교합 환자중 소구치를 발치하고 치료한 발치군과 비발치로 치료한 비발치 치료군 71명을 선정하고 다시 연령에 따라 청소년기와 성인으로 분류하여 교정치료 전후의 두부방사선 계측분석 사진을 통하여 치아와 연조직의 수평·수직적 변화를 비교분석하여 다음과 같은 결론을 얻었다. 1. 발치군과 비발치군간의 비교에서는 SN-MP angle, E-line에 대한 산순의 이동, 상악 제1대구치의 수직이동량, 하악 제1대구치의 수평이동량 등의 항목을 제외한 모든 치아계측항목과 연조직 계측항목에서 유의차을 나타내었다. 2. 청소년기의 발치군과 비발치군간의 비교에서는 상하악 전치의 경사도와 수직기준선으로부터의 전치부 수평변화 항목, 상악 제1대구치의 근심이동, E-line에 대한 상,하순의 위치변화에서 유의차를 나타내었다. 3. 성인에서의 발치와 비발치군간의 비교에서는 상하악 전치의 경사도와 수직기준선으로부터의 수평적 위치변화와, 상악 제1대구치의 수직고경 및 하악 제1대구치의 근심이동, E-line과 수직기준선으로부터의 상,하순의 위치 변화에서 유의차를 나타내었다. 4. 청소년기와 성인 모두에서 SN-MP angle의 변화는 발치군과 비발치군간에 유의차가 없었다. 71 Class I malocclusion samples were selected and they were divided into premolar-extraction and non-extraction groups. Vertical and horizontal cephalometric evaluations on dental and soft tissue measurements were done before and after treatment. Also, treatment results in adolescent patients and adult patients were compared. The following conclusions were obtained: 1. In comparison of extraction and non-extraction groups, all the dental and soft tissue measurements, with exception of SN-MP angle, upper lip to E-line, vertical movement of upper first molar, and horizontal movement of lower first molar, showed statistically significant differences. 2. In comparison of extraction and non-extraction groups of adolescent samples, there were statistically significant differences in upper and lower incisor inclinations, horizontal dental movements from vertical reference line, positional changes in upper and lower lips, and mesial movements of upper first molar. 3. In comparison of extraction and non-extraction groups of adult samples, there were statistically significant differences in upper and lower incisor inclinations, horizontal dental movements from vertical reference line, positional changes in upper and lower incisor inclinations, horizontal dental movements from vertical reference line, positional changes in upper and lower incisor inclinations, horizontal dental movements from vertical reference line, positional changes in upper and lower lips, and mesial movement of lower first molar. 4. There was no statistically significant difference in SN-MP angle between extraction and non-extraction groups of both adolescent and adult samples.

성인 자원자에서 B방식 초음파를 이용해 측정한 경동맥 내막중막두께의 분포

이선규,황희영,김형식,장미선,이은주,강문호,고광곤 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.11

肝吸蟲症 治療前後에 있어서 血淸 및 尿의 抗體價變動에 관한 比較硏究

金亨東,嚴基善,林漢鍾 고려대학교 의과대학 1987 고려대 의대 잡지 Vol.24 No.3

The changes of IgG levels of sera and urine were observed with the enzyme-linked immunosorbent assay (ELISA) at before and after medication in human clonorchiasis. Sera and urine from 68 cases of confirmed clonorchiasis were tested at before and at 9 and 18 month after treatment with Distocide® (praziquantel). Group I (n=22) was cured after first medication and then followed up for 18 months. And Group Ⅲ (n=24) of patients with eggs in their feces after first medication showed egg reduction rate of 90%. Thirteen normal controls were parasite free healthy persons for clonorchiasis in non-endemic area. The antigen used was saline extract of crude Clonorchis sinensis adult worm with the protein concentration of 14.3㎍/㎖ and the results obtained were as follows: 1. When a serum dilution of 1:400 was used, the absorbance values (488 nm) were 1.122, 1.373 and 1.632 in groups Ⅰ,Ⅱ,Ⅲ respectively before medication. Antibody level decreased significantly at 9 months after medication showed 0.572, 0.749 and 1.155 in the respective group. Then the levels decreased slightly to 0.464, 0.516 and 1.107 at 18 months after medication. But the control group showed relatively constant absorbance values of 0.291 at before 0.301 and 0.286 respecively at 6 and 18 months. 2. Urine showed absorbance values of 0.484, 0.629 and 0.849 in groups Ⅰ, Ⅱ, Ⅲ respectively before medication. Then the values decreased about a half level revealed 0.261, 0.226 and 0.467 in the respective group at 18 months after medication. Control group showed relatively constant absorbance values 0.232 at before and 0.252 at 18 months. 3. The diameter of wheal size (mm) by intradermal test did not show substantial changes, i.e. 11.7, 13.3 and 12.7 in groups Ⅰ, Ⅱ, Ⅲ respectively before medication; 11.7, 12.9, and 11.4 in the respective group at 18 months after medication. 4. The relation of the absorbance values between sera (y) and urine (x) made the regression equation: y=0.707X+0.908, and showed relatively high correlation (r=0.619, n=68, p<0.001) before medication; y=0.760X+0.387 with some correlation (r=0.582, n=68, p<0.001) at 18 months after medication. 5. The relation between the absorbance values of urine and log EPG (eggs per gram of feces)/100 revealed more or less irregular correlations, i.e.r=0.566(p<0.01), 0.661(p<0.001)and 0.384(p<0.10)in groups Ⅰ, Ⅱ, Ⅲ respectively before medication. 6. The relation between the absorbance values of urine and the wheal size (mm) by intradermal test showed low correlation, i,e, r=0.416(p<0.10), 0.416(p<0.10)and 0.421(p<0.05)in groups Ⅰ, Ⅱ, Ⅲ respectively before medication.

장섬유강화 고분자 복합판의 프레스 성형에 있어서 니트라인에 관한 연구

조선형,이국웅,안종윤,윤성운 한국공작기계학회 2001 한국생산제조학회지 Vol.10 No.2

In recent years, compression molding of lone fiber-reinforced thermoplastics has been increased in commercial aspects. In the process of compression molding of composites, the flow analysis must he developed in order to accurately predict the finished part properties as a function of the molding process parameters. In this model FRTP is assumed to be nonisothermal fluid, which has different viscosities in extensional and in shear. For verification of the model, the formation of a knit line in the L-shaped parts is compared with that of experiments results. In this paper we will discuss the effects of extensional & shears viscosity ratio ξ and slip parameter α on the other mold fill-ing parameters

일방향 섬유강화 플라스틱 복합재의 점도에 미치는 성형인자의 영향

조선형,안종윤,윤성운 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.6

The Compression molding process is widely used in the automotive industry to produce parts that are large, thin, light-weight, strong and stiff. Compression molded parts are formed by squeezing a glass fiber reinforced polypropylene sheet, known as glass mat thermoplastic(GMT), between two heated cavity surfaces. In this study, the an isotropic viscosity of the Unidirectional Fiber-Reinforced Plastic Composites is measured using the parallel plastometer and the composites is treated as an incompressible Newtonian fluid. The effects of molding parameter and fiber contents ratio on longitudinal/transverse viscosity are also discussed.