漢江下流部 水害輕減을 爲한 調査 硏究

金漢星,高在雄,李相鎔,玄義泰,柳興根 건국대학교 1974 學術誌 Vol.17 No.1

The effect of reducing flood magnitudes, flood stages, and flood damage by upstream reservoir regulation are investigated in this study. The analytical procedures which has been established newly, are treated through this study for 7 index stations and same numbr of reaches. The method of this study could be expressed briefly as following procedures. Using stage-frequency relations and the potential damage survey data, damage-frequency relations are established, and from this, average annual flood damages computed. By holding out portions of the floods with various amounts of flood control storage in 6 reservoirs in the basin, routing were made to establish modified stage-frequency relations. From damage frequency relation, average annual damages are computed with and without condition of each control volume. The study result are concluded as follows; (1) The relationtship of corresponding water level between nearby stations are useful tools to adjust error of the data due to observation error and change of the gaging location. (2) The number of records about 10 years could not be applied for the statistical methods of flood frequency analysis. (3) The regional skew factors are recommended to apply flood frequency study by the log-Pearson Type III method. (4) The effect of damage reductions are greatly affectedin accordance with the routed flood. Therefore application of the Typical Tributary Contribution Flood are reasonable for this type of study. (5) In the North Han, effect of damage reduction due to the lacation of control point are gradually increased from upstream to downward until the confluence of North and South Han. (6) In the South Han, control effect are increased from Chungju to Yeoju where the maximum effect are analyzed and then decrease gradually until the confluence. (7) Better hydrologic and topographic combinations for the flood control are existed in South Han to compare with North Han in this study results.

Private-Source Educational Expenditure in Korea : Analysis and Implications

Han, You-Kyung RESEARCH INSTITUTE OF CURRICULUM INSTRUCTION EWHA 2005 East west education Vol.22 No.-

Private educational expenditure means the sum of the expenses individual household paid for educational activities but not processed through official accounting procedure. It includes private tutoring fees, books, room and board, school supplies and so on. Private educational spendings per student in the year of 2001 is 1,999 thousand won in pre- schools, 2,368 thousand won in elementary schools, 2,261 thousand won in middle schools, 2,307 thousand won in general high schools, 1,360 thousand won invocational high schools, 1,938 thousand won in junior colleges, 2,216 thousand won in industrial universities, 2,673 thousand won in four-year colleges and 2,330 thousand won in graduate schools. Total private educational expenditure estimated from these sample figures is 18,782 billion won for pre-school, middle school and high school students together and 7,891 billion won for students in higher education institutions. What we are most concerned about regarding the private educational expenditure is the amount of expenditure for the private tutoring. The percentage of private tutoring expenses on the average is about 48.6. Private educational spending per student has declined compared to the spending in 1998. Especially the spending for elementary school students, general high school students and college students had declined greatly. However, the spending for middle school students, vocational high school students and junior college students has slightly increased. The portion out of GDP also declined to 5.61% in 2001 from 6.53% in 1998.

School Finance Reform in Korea : Findings and Implications for School-based Budgeting System

Han, You-Kyung 이화여자대학교 사범대학 교과교육연구소 2004 East west education Vol.21 No.-

The purpose of this study is to explore the means to implant successfully the school-based budgeting system by analyzing the current status of financial management in schools and grasping the problems that arose during its implementation, which was first launched in March, 2001 in the national and public elementary, middle, and high schools nation-wide. To this end, the current status of financial management in schools that has been implemented during the last years is analyzed and both the success and failure in implementing the school-based budgeting system are investigated.

가축분뇨를 이용한 SCP 생산 균주의 분리 및 균체 단백질 생산

한석균,고유석,안태영,배동훈 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.6

질소원으로서 계분을 이용하는 균주를 선별하고 계분배지에서 균체의 생육속도가 다른 균주에 비하여 우수한 균주를 분리하였다. 형태·생리학적 특성을 기초로 하여 yeast의 분류 기준과 비교하여 본 균주를 Candida sp.로 동정하였으며 본 균주를 Candida sp. D116으로 명명하였다. Poultry feces extract medium에서 4% 농도의 glucose 첨가가 균체 생육에 효과적이었다. D116 균주를 액체 발효하여 균체생산능, 요산 그리고 가용성 단백질의 변화를 조사하였다. 그 결과 약 60시간이 경과하면 액체 발효 배지내의 거의 모든 가용성 단백질 및 요산의 감소를 보였으며 균체생육은 약 36시간 배양하였을 때 최고조에 도달하였고 그 후에는 점차 감소하는 경향을 보였다. SCP의 대량생산의 결과 50%의 계분혼합 배지와 30℃의 배양 온도에서 36시간 배양하여 균주의 생육수준이 3.8×10^9 CFU/ml 농도의 균체를 생산하였고 200 L의 배양액중 약 870 g-dw의 균체를 얻었으며 생산된 군체의 조단백질 함량은 67%이었다. Production of Single Cell Protein from Poultry Feces. Suk-kyun Han, You-Suk Go, Tae-Young Ahn and Dong-Hoon Bal^1*. Deparment of Microbioligy, College of Natural Sciences, Dankook Univerity, Cheonan 330-714 and Research Center for Molecular Microbiology, Seoul Nationa University, Seoul 151-742, Korea, ^1Department of Food Engineering. College of Engineering, Dankook University, Cheonan 330-714 and Bioproducts Research Center of Yonsei University, Seoul 120-749, Korea - From the soil collected form provincial area of South Korea, a microorganisms which have been shown good growth in the minimal poultry feces extract medium was isolated. Supplement of glucose to the poultry feces extract medium helped the complete degraded during the microbial growth. Maximum cell growth (3.8×10^9 CFU/ml) obtained at 36 hours of incubation after inoculation. Uric acid was degraded faster in minimal medium that in the glucose complement medium. VFA (volatile fatty acid), which are known as major compounds of poultry feces odor, were almost removed from the minimal poultry feces extract medium. Glucose supplement to the minimal medium enhanced the growth of microbial cells. Addition of 4% of glucose and 4% of neopeptone to the minimal poultry feces extract medium helped the maximal growth of cells.

男女大學生의 結婚觀(II) : 그들의 意識과 行動을 中心으로

柳時中,韓有常 경북대학교 사회과학대학 1984 社會科學 Vol.3 No.-

The purpose of this study is to examine some attitudes that college students assume toward marriage. In the article "College Students' Attitudes Toward Marriage: Their Spouse Selection Routes and Criteria" (Yu and Han, 1984) to appear in Oriental Culture Research, vol.11 (1984), the authors have advanced an analysis of prevailing spouse selection routes and criteria. As a sequel to Yu and Han (1984), this study tries to investigate problems concerning premarital sexual intercourse and postnuptial life planning that enter into the spouse selection process. Since Korea began to modernize itself, diverse changes have occurred in our society. Particularly, the Western free-sex trend seems to have continued its infiltration to such an extent that college students in Korea are seriously affected by the mood. Upon investigation, however, it has been found out that most college students still impart a high value to premarital virginity, and that only a small number of students are actually experiencing premarital coitus. Questionaires about postnuptial life planning were employed to analyze the attitudes that college students take toward independent family life, residence problem, double-income family, and family planning. The result was that the nuclear and double-income family was more favored by female students. It also turned out that, regardless of sex, most college students hoped to find their postnuptial residence in cities and to have fewer children than before.

청소년의 성에 대한 지식, 태도에 관한 연구 -전남 지역 일부 중학교 1학년 대상으로-

박충선,한유정,Park Chung Sun,Han You Jeong 한국아동간호학회 1997 Child Health Nursing Research Vol.3 No.1

The purpose of the survey was to Identify the degree and the relationship of sexual knowledge, sexual attitude. This information will provide useful data for a more systematic, desirable, and practical sex education. The data was collected from 187 first grade schoolchildren(95 boys and 92 girls) of two Junior high school in Chun-nam area. The data was gathered by questionnaire from Oct. 1 to 15, 1996. The questionnaire was modified by authors using the questionnaire developed by You-Jeong, Han (1996). Data was analyzed by using the statistical computer package, SAS to manipulate the data along with percentages, means, standard deviation, t-test, χ²-test, GLM, and Pearson correlation coeffiency. The results in this study were summarized as follows: 1. Sex related knowledges.-The mean score of sex related knowledges showed significant differences between boys and girls (boys : 22.3, girls .21.0, p<0.025), and in the area of pregnancy & delivary(boys : 9.4, girls : 7.9, P<0.000) showed significant difference between boys and girls, but in the area of physical differeces of the other sex(boys : 12.9, girls ; 13.1, p<0.551) showed no significant difference between boys and girls. 2. Sex related attitudes.-The mean score of sex related altitudes showed significant difference between boys and girls (boys : 56.7, girls : 60.5, p<0.002) and in the area of psychological difference the other sex(boys 28.9, girls : 32.5, p<but in the areas of form of friendship with the other sex(boys : 11.5, girls : 11.2, p<0.335), sexual delinquency & its prevention(hys : 16.3, girls : 16.9, p<0.171) showed no significant difference between boys and girls 3. The relationships between sex related know ledges and sex related attitudes.-Those who had higher sex related knowledges showed more positive attitudes towards sex, and showed no statistical significance (r=0.08, p<0.286) 4. Differences of the sex related knowledges ac cording to general characteristics.-The students had disease experience, health interest and more school performance had higher knowledge scores about sex. 5. Differences of the sex related attitudes accord ing to general characteristics. Those who were in high school performance had higher attitude scores about sex as well. From the result of the study, it is recomended to develop systematic sex education through formal school education acorrding to age.

흰쥐 간의 Carboxylesterase 활성에 미치는 고부하 Taurocholate의 영향

한병훈,김여희 啓明大學校 醫科大學 1998 계명의대학술지 Vol.17 No.4

목적: 이 연구는 담즙울체 시 간과 혈청에서 활성고가 감소되는 carboxylesterase 활성도 감소기전의 일부를 알아내기 위하여 시행하였다. 대상 및 방법: 흰쥐에게 총담관 결찰로 담관을 폐쇄시킨 직후 또는 총담관 대정맥 문합을 시행한 직후 TCA 또는 TUDCA를 정맥 내에 주입한 다음 경시적으로 간과 혈청에서 carboxylesterase 활성도의 변동에 대한 이들 담즙산의 효과를 측정하였다. 결과: 흰주에게 총담과 대정맥 문합을 한 후 2일 경과했을 때와 담관 폐쇄를 한 후 1일 및 2일 경과시켰을 때 간 mocrosome 분획의 carboxylesterase 활성도와 담관 폐쇄 후 2일경과했을 때 혈청의 carboxylesterase 활성도 등은 통계학적으로 유의한 감소를 나타내었다. 간 microsome 분획 및 혈청의 carboxylesterase 활성도는 총담관 대정맥 문합을 한 군보다 담관 폐쇄를 한 군에서 더 감소되었으며 양군 모두 수술 후 1일 경과했을 때보다 2일 경과했을 때 간과 혈정에서 이 효소의 활성도가 더 감소되었다. 흰주에게 총담관 대정맥 문합 또는 담관 폐쇄를 한 직후 TCA를 주입하여 1일 및 2일 경과했을 때 간 cytosol,mitochondria, 및 microsome 분획의 carboxylesterase의 활성도는 각각의 대조군인 총담관 대정맥 문합만 한 군 또는 담관 폐쇄만 한 rnss에 비해 통계학적으로 유의한 감소를 나타내었다. 흰주에게 총담관 대정맥 문합 또는 담관 페쇄를 한 직후 TCA를 주입하여 1 일 및 2 일 경과했을 때 혈청의 carboxylesterase 활성도는 각각의 대조군인 총담관 대정맥 문합만 한 군 또는 담관폐쇄만 한 군에 비해 유의한 감소를 나타내었다. 흰쥐에게 총담관 대정맥 문합 또는 담관 페쇄를 시행한 직후 TUDCA를 주입하여 1 일 및 2 일 경과했을 때 간 cytosol, mitochondria 및 microsome 분획과 혈청에서 이 효소의 활성도는 모두 대조군과 유의한 차이가 없었다. 흰주에게 총담관 대정맥 문합 또는 담관 폐쇄를 시행하고 2일 경과했을 때 간 microsome 분획의 carboxylesterase의 Vmax치는 가수술만 한 군에 비해 유의한 감소를 나타내었다. 흰주에게 총담관 대정맥 문합 또는 담관 폐쇄를 시행한 직후 TCA를 주입하고 2일 경과했을 때 간 cytosol, mitochondria 및 microsome 분획의 carboxylesterase의 Vmax치는 각각 대조군인 총담관 대정맥 문합만 한 군 또는 담관폐쇄만 한 군에 비해 유의한 감소를 나타내었다. 흰주에게 총담관 대정맥 문합 또는 담관 폐쇄를 시행한 직후 TUDCA를 주입하고 2일 경과했을 때 간 microsome 분획의 carboxylesterase의 Vmax치는 가수술만 한 군에 비해서만 유의한 감소를 나타내었다. 그러나 이 효소의 Km치는 모든 실험군의 간세포 분획에서 유의한 변동의 나타내지 않았다. 요약: 이상의 결과로 보아 담즙울체 간에서 carboxylesterase의 활성도 감소는 담즙산 중 특히 TCA에 의해 이 효소의 합성이 억제되어 나타난 결과로 생각되며 아울러 담즙울체 시 이 효소의 혈청 중 활성도 감소는 간에서 이 효소의 합성 감소로 혈중으로 유출이 감소되어 나타난 결과로 생각된다. Background/Aims: We have investigated the effect of bile acid load on the carboxylesterase activity in cholestatic rat liver and serum in order to elucidate the possible mechanism of decrease of carboxylesterase activity under cholestasis. Methods: Rats were divided into eight groups: Normal, sham operated control, bile duct obstruction (BDO) alone (BDO group), BDO plus taurocholic acid (TCA) injection (BDO plus TCA group), BDO plus tauroursodeoxycholic acid (TUDCA) injection (BDO plus TUDCA group), choledocho-caval shunt (CCS) operation alone (CCS group). CCS plus TCA injection (CCS plus TCA group), and CCS plus TUDCA injection (CCS plus TUDCA group). Carboxylesterase activity was determined in the serum and liver cytosolic, mitochondrial and microsomal preparations from above experimental rats. The values of Km and Vmax in this hepatic enzyme were measured. Results: The activity of liver microsomal carboxylesterase showed a significant decrease in both CCS and BDO group. And the activity of serum carboxylesterase showed a marked decrease in both CCS and BDO group. However, carboxylesterase activity in the serum and liver microsomal preparation fell more rapidly in the BDO group than CCS. Carboxylesterase activity in liver cytosolic, mitochondrial and microsomal preparations, and its Vmax value decreased significantly in both CCS plus TCA group, and BDO plus TCA group than each control group. On the other hand, the values of Km of the hepatic subcellular carboxylesterase did not change in all the experimental group. Serum carboxylesterase activity decreased significantly in both CCs plus TCA group and BDO plus TCA group than each control group. However, these serum and hepatic enzyme activity did not change in both CCS plus TUDCA group and BDO plus TUDCA group. Summary: The above results suggest that TCA repress biosynthesis of the carboxylesterase in the liver. And the lowering of the serum enzyme activity thought to be caused by decrease of biosynthesis of this hepatic enzyme, which cause the enzyme to leak

合成甘味料中溶性삭카린의 銀滴定法에 依한 定量法에 關한 硏究

韓世鎬,吳有珍,李琅鎬 忠南大學校 1962 論文集 Vol.2 No.-

1. KP 및 USP 法에서 얻어지는 含量%가 97.90%인데 比하여 本方法에서는 99.65%이라는 實驗結果를 얻을 수 있었다. 2. 本方法에서 使用되는 試藥및 標準液은 普遍的으로 흔히 使用되는 것들로서 쉽게 市中에서 入手할 수 있는 것들이다. 3. 本方法은 그操作法에있어 KP 및 USP의 方法보다 簡便하며 또한 迅速하여 많은 時間을 短縮시켜주고 있다. In present, the assay of soluble saccharin was titrated with NaOH solution into the Extracts after extract of saccharin by Organic solvents. But in this method adopt a new, was precipitated as Ag-salt with AgNO_3 in weak acid quantitatively. Ⅰ. It can quantify exactly without any disturbance, It control to the suitable acid, such as Dulcin or other mixtures in Synthetic sweeting Materials. Ⅱ. It has a highly accuracy and quantify the saccharin till 99.9% Ⅲ. It showed marked a simply and rapidly than the method of KP. USP. JP etc. in tasts and processes.

산업기술 정책환경 변화에 따른 대응전략

한상연,이유신 경희대학교 지역문제연구부 1997 지역개발연구 Vol.4 No.-

이트리아 안정화 지르코니아의 전해질 영역

유한일 국립경상대학교 공과대학 부설 첨단소재연구소 1994 尖端素材 Vol.4 No.-

이트리아 안정화 지르코니아에 대하여 전기전도도가 산소분압에 무관한 전해질 영역의 존재를 확인하고 전하적정법(coulometric titration)을 이용하여 전해질 영역의 산소 분압 하한을 구하였으며, 전해질 영역에서의 전자전도도를 조사하였다.