http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
金東植,李殷泰 慶熙大學校 1991 論文集 Vol.20 No.-
The daily flow series for a river under consideration in composed of a deterministic and a stochastic part and comprises a one dimensional hydrologic process. These parts reflect the physical structure of the river's drainage basin and random events occurring in nature. In this study, this hydrologic process has analyzed in a rather realistic manner by decomposing it into its parts, and a mathematical model of daily flows has been built which consists of a deterministic and a stochastic component. The model built has been applied to the daily discharges for the HAN―RIVER at YEU―JU. The statiscal characteristics of the generated flow series by the mathematical model has been compared with those measured and the conclusion has been derived.
박경식,김동한,이규식 한양대학교 의과대학 1984 한양의대 학술지 Vol.4 No.1
Development and differentiation of mammalian kideney has been studied by many investigators. Hitreto, it has been known that a high vertebrate's kidney was differentiated from as a metanephros. As a result of the study of most investigators on developmental processes of metanephros in man rodents, they insisted that morphological development and differentiation of nephrons and collecting ducts should occur in the latter one quarter period of the fetal ages. But the initiation and completion time of renal function following its morphological development and differentiation have not been investigated perfectly. The author has determined the relationships of morphological and functional development of kidney were able to be revealed the studies of hydrolyzing phosphatase activities on the developing renal tissues. Therefore, in order to investigate the phosphatase activities of renal tissue following the development and differentiation of rate kidney, after interbreeding of healthy rats, fetuses of the 15th, 17th, 19th and newborns of the 1st, 4th, 7th and 10th day were sacrificed and were resected renal tissues. Histological preparations were prepared by way of hematoxylin and eosin stain for morphological changes of rat renal tissues, and Gomori's method(1941) for the detection of the activities of alkaline phosphatase, Gomori's method(1939) for the detection of the activities of acid phosphatase and Wachstein and Meisel's method(1957) for the detection of activities of ATPase were used, respectively. All of the preparations were observed with light microscope. The results were as follows; 1. The early differentiation of rat kidney began with glomerulus formation at the 17th day of fetal age, and morphological development was completed at the 21th day of fetal age, and lobulation of kidney was observed at the 7th day of neonatal age. 2. In the fetal kidney of the 17th gay, alkaline phosphatase activities were observed initially in the proximal tubules surrouding glomeruli in the cortico-medullary junction, and the activities were increased at the 17th day of fetus. At the 21th day of fetus, the strength of the enzyme activity was increased at the same time as renal tubule which showed alkaline phosphatase activity was increased in the cortex. In the each newborn kidney, the enzyme activities were continuously increased in the proximal tubules at the 1st, 4th, 7th and 10th day of newborns. The renal corpuscle and ascending straight tubule of the Henle's loop showed trace activities. 3. Acid phosphatase activity was shown at renal tubles and glomeruli during the fetal age after the 17th day of fetus, and moderate reaction of the enzyme was shown in the renal tubules, glomeruli, medullary rays and Henle's loops after birth. 4. Adenosine triphosphatase showed moderate reaction in the glomerulus at the 17th day and 19th day of fetus, and strong reaction was shown at the 21th day of fetus, and the ATPase activities of medullary rays showed trace reaction after birth. According to the beginning and change of the enzyme activity as mentioned above, it was supposed that the development of rat kidney should begin at begin at the 17th day of fetus. In the 21th day of fetus, diuresis and resorption were accoomplished mostly in the glomerulus and proximal tubule, and resorption of the Henle's loop began just before and after the birth.
Dong-Kun Yang,Ha-Hyun Kim,Eun-Jin Lee,유재영,Soon-Seek Yoon,박중원,Chae-Hyun Kim,Ho-Ryoung Kim 대한미생물학회 2019 Journal of Bacteriology and Virology Vol.49 No.3
Canine adenovirus type 1 (CAV-1) infection results in hepatitis in dogs. In this study, we investigated the biologic and genetic characteristics of the CAV-1 vaccine strain (CAV1V) to improve quality control about CAV vaccine. The identity of CAV1V as CAV-1 was confirmed based on its cytopathic effects and the results of hemagglutination (HA) and immunofluorescence assays, and electron microscopy. The CAV1V strain reached 10 7.5 TCID 50 /mL in MDCK cells at 4 days post-inoculation and exhibited hemmagglutination activity of 256 U using guinea pig erythrocytes. Intranuclear fluorescence in the infected cells was observed and typical adenoviruses were observed in electon microscope. CAV1V strain was identified as a CAV-1 strain by nucleotide sequence analysis. In a comparison of the nucleotide sequences of the fiber genes of several CAV strains, CAV1V showed the highest similarity (99.8%) with the GLAXO strain, which was isolated in Canada. Our biological characterization of CAV1V will facilitate quality control of the canine hepatitis vaccine.
Kim, Hyeoi-Jin,Kim, Chul-Hyun,Kim, Dong-Won,Park, Mi-Ra,Park, Hye-Soon,Min, Sun-Seek,Han, Seung-Ho,Yee, Jae-Yong,Chung, So-Chung,Kim, Chan The Korean Nutrition Society 2011 Nutrition Research and Practice Vol. No.
Bioelectrical impedance analysis (BIA) models must be validated against a reference method in a representative population sample before they can be accepted as accurate and applicable. The purpose of this study was to compare the eight-electrode BIA method with DEXA as a reference method in the assessment of body composition in Korean adults and to investigate the predictive accuracy and applicability of the eight-electrode BIA model. A total of 174 apparently healthy adults participated. The study was designed as a cross-sectional study. FM, %fat, and FFM were estimated by an eight-electrode BIA model and were measured by DEXA. Correlations between BIA_%fat and DEXA_%fat were 0.956 for men and 0.960 for women with a total error of 2.1%fat in men and 2.3%fat in women. The mean difference between BIA_%fat and DEXA_%fat was small but significant (P < 0.05), which resulted in an overestimation of $1.2{\pm}2.2$%fat (95% CI: -3.2-6.2%fat) in men and an underestimation of $-2.0{\pm}2.4$%fat (95% CI: -2.3-7.1%fat) in women. In the Bland-Altman analysis, the %fat of 86.3% of men was accurately estimated and the %fat of 66.0% of women was accurately estimated to within 3.5%fat. The BIA had good agreement for prediction of %fat in Korean adults. However, the eight-electrode BIA had small, but systemic, errors of %fat in the predictive accuracy for individual estimation. The total errors led to an overestimation of %fat in lean men and an underestimation of %fat in obese women.
OFDM 시스템에서 SLM-PTS 결합방식을 이용한 PAPR 특성에 관한 연구
김동식(Dong-Seek Kim),성태경(Tae-Kyung Sung),조형래(Hyung-Rae Cho) 한국마린엔지니어링학회 2005 한국마린엔지니어링학회 학술대회 논문집 Vol.2005 No.-
OFDM communication system is effective for the high data rate transmission in the frequency selective fading channel. Since OFDM has high PAPR, OFDM signal may be distorted by the nonlinear HPA. In this paper, we propose an combined SLM and PTS method for reducing the PAPR in OFDM communication system. Proposed method increased some system complex in comparison with exiting method.
Hyeoijin Kim,Chul-Hyun Kim,Dong-Won Kim,Mira Park,Hye Soon Park,Sun-Seek Min,Seung-Ho Han,Jae-Yong Yee,Sochung Chung,Chan Kim 한국영양학회 2011 Nutrition Research and Practice Vol.5 No.3
Bioelectrical impedance analysis (BIA) models must be validated against a reference method in a representative population sample before they can be accepted as accurate and applicable. The purpose of this study was to compare the eight-electrode BIA method with DEXA as a reference method in the assessment of body composition in Korean adults and to investigate the predictive accuracy and applicability of the eight-electrode BIA model. A total of 174 apparently healthy adults participated. The study was designed as a cross-sectional study. FM, %fat, and FFM were estimated by an eight-electrode BIA model and were measured by DEXA. Correlations between BIA_%fat and DEXA_%fat were 0.956 for men and 0.960 for women with a total error of 2.1%fat in men and 2.3%fat in women. The mean difference between BIA_%fat and DEXA_%fat was small but significant (P < 0.05), which resulted in an overestimation of 1.2 ± 2.2%fat (95% CI: -3.2-6.2%fat) in men and an underestimation of -2.0 ± 2.4%fat (95% CI: -2.3-7.1%fat) in women. In the Bland-Altman analysis, the %fat of 86.3% of men was accurately estimated and the %fat of 66.0% of women was accurately estimated to within 3.5%fat. The BIA had good agreement for prediction of %fat in Korean adults. However, the eight-electrode BIA had small, but systemic, errors of %fat in the predictive accuracy for individual estimation. The total errors led to an overestimation of %fat in lean men and an underestimation of %fat in obese women.