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尹和重,李元暢,金昌漢 건국대학교 1979 學術誌 Vol.23 No.2
The studies on the morbidity rate of the dairy cows in Korea from October 31, 1977 to November 30, 1978 were intended. The results obtained were as follows : 1.During the period of one year, 11,060 cases of the disease were shown by the clinical examination. Among them, the surgical disease was 7.70%(morbidity rate : 31.8 per 1.000), the disease of internal medicine was 36.31%(146.4 per 1.000) and obstetrical disease was 55.78%(225.0 per 1.000). 2.Foot rot of 21.88% among 873 cases of 30 kinds in the surgical disease showed the highest rate of morbidity Indigestion(dyspepsia) of 13.99% among 4,016 cases of 22 kinds in the disease of internal medicine was the highest rate of morbidity Endometritis of 25.85% among 6,171 cases of 28 kinds in the disease of obstertics was the highest rate of morbidity. 3.Ten kinds of main disease in dairy cows were endometritis (L4.42%), retained placenta(11.33%), mastitis(9.47%), indigestion (5.8%), milk fever (4.45%), ovarian cyst (4.39%), diarrhea (4.35%), pneumonia (3.36%), ovarian hypofunction (2.97%) and enteritis (2.7%), respectively. 4.The strains of causative organism in 320 cases of clinical mastitis were staphyococcus spp, (25%), streptococcus spp. (40%), other bacteria spp. (9%) and fungi spp.(16%). 5.Fifty-one strains of bactria were isolates from the cases of clinical mastitis : Two strains (3.9%) were Phycomycetes spp., twenty-four strains (47.1%) were Ascomycetes spp. and twenty-five strains (49.0%) were Fungi Imperfecti. 6.The sensitivity rate(%) of the bacteria isolated from the cow milk of the clinical mastitis to 9 kinds of antibacterial drug was 14.1% to penicillin-G, 17.8% to streptomycin, 14.9% to erythromycin,20.0% to chloramphenicol, 55.0% to kanamycin, 66.9% to neomycin, 13.8% to tetracyclin, 10.8% to novobiocin and 66.2% to sulfaisodindin.
김화중 서울大學校 保健大學院 1998 보건학논집 Vol.35 No.1
This study was conducted to examine factors in relation to family health status in Korea. Subjects in this study were 383 families randomly chosen. Data were collected from October, 1997 to November, 1997. The instrument of this study was a questionnaire about family health status and factors in relation to health. The summary of results was as follows: 1. The mean of family health status was from 3.32 to 3.47 of full score 5.00. Significant difference were obtained among the family groups. As the family groups are younger and in the higher educational level, the scores of health status are higher. 2. The physical, emotional, spiritual and social health status of the family are significantly correlated to the family mental health status. 3. The communication relationship is the most influencing factor on the family health status. In conclusions, for the family health, it is necessary to promote mental health through the communication relationship.
찻물에서의 Cd과 Pb 이온 제거에 관한 차입자의 효과
김중만,백승화,박성수 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.5
차재료를 찻물에 담근 후 차건데기를 건저내고 마시는 차류의 중금속 제거력을 조사하기 위하여 Cd과 Pb 용액에서 보리차, 옥수수차, 쟈스민차, 현미녹차, 홍차, 결명자차, 감껍질차, 귤껍질차, 누룽지의 입자별, 농도별, 온도별 제거 정도를 조사한 결과는 다음과 같다. 입자의 크기가 작아질수록 모든 차에 있어서 중금속 제거력은 증가되었고, 금속별 제거량은 Cd는 결명자차(3.253∼6.136㎎/g)가, Pb은 쟈스민차(6.784∼7.557㎎/g)가 높았다. 농도별 중금속 제거량은 중금속의 농도가 증가할수록 증가하였는데 Cd와 Pb는 쟈스민차(1.209∼4.815㎎/g, 0.642∼7.004㎎/g)가 제거력이 높았다. 농도별 중금속의 제거작용은 모든 차류에서 증가되었으나 옥수수차는 Pb에서 0.497∼0.647㎎/g로 제일 낮았다. 온도별 중금속 제거량은 온도가 높아질수록 증가하여 Cd은 결명자차가 4.080∼7.799㎎/g, Pb는 쟈스민차가 7.003∼7.763㎎/g으로 증가하는 경향을 보였다. Removabilities of heavy metals(Cd and Pb) by the tea materials (barley-tea, corn-tea, jasmin-tea, brown rice-green tea, cassia tora-tea, persimmon peel-tea, orange peel-tea and rice-tea) in the tea-water were studied in the various conditions ; particle size of tea(20, 40, 70 mesh), concentration of heavy metal(25, 50, 100 ppm) and extraction temperature(20, 30, 50, 100℃). The removabilities by the tea solids were increased as the particle size decreased, concentration of heavy metal increased, and extracting temperature increased. Of the nine kinds of tea, Cd and Pb removability by jasmin-tea was highest. In addition, heavy metal removability by cassia tora tea was better than that of other tea as extraction temperature was increased.
소아의 치면세균막에 존재하는 mutans streptococci의 분포
국중기,박종휘,유소영,김화숙,이난영 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.3
한국인 소아의 치면세균막에 존재하는 mutans streptococci 종 및 생물형의 발현빈도와 치아우식경험지수와 상관관계를 알아보기 위하여. 조선대학교 치과병원에 내원한 12세 미만 113명의 소아 환자의 치아우식경험지수를 구하고, 이들의 상하악 유전치 및 유구치의 협면 및 설면의 치면세균막 샘플을 채취하여 mutans streptococci를 mitis-salivarius bacitracin 배지에서 선택적으로 분리하였다. 이들의 biotype을 알아보기 위해 생화학적 검사를 실하였고, 이들의 종 수준에서의 동정을 위해 dextranase 유전자를 표적으로 하는 중합효소연쇄반응을 시행하여 하였다. 113명의 환자 중에서 40명의 치면세균막에서 40 균주의 mutans streptococci이 검출되었다. 이들 중 생물형 제 Ⅰ형 (45%)이 가장 많이 검출되었으며, 그 다음으로 제Ⅳ형 (32.5%), 제 Ⅱ형 (15%). 제 Ⅴ형 (5%), 제 Ⅲ형 (2.5%) 순으로 검출되었다. 또한, 종 수준에서의 발현빈도를 알아본 결과 S. mutans가 69%, S. sobrinus는 31%였다. Mutans streptococci 종 또는 생물형에 따른 환자의 치아우식경험지수간의 차이는 없는 것으로 조사되었다(p>0.05). 이상의 결과를 종합할 때, 한국인의 소아의 구강 내에 존재하는 mutans streptococci중 생물형 제 Ⅰ형인 S. mutans가 가장 높은 빈도로 존재하며, 치아우식증이 세균학적 요소만이 아닌 기타 여러원인 요소에 의해 발병되는 다는 여러 연구 결과와 일치함을 알 수 있었다. The aim of this study is to survey the frequency of mutans streptococci species and biotypes isolated from dental plaque in Korean children and the relationship between species and biotypes of mutans streptococci and dft index. Dental plaques were collected from the anterior and molar teeth of upper and lower jaws in the subjects, aged below 12 years old. A dental examination was performed for dft (decayed, filed, total) with the WHO caries diagnostic criteria. The mutans streptococci from the sample were cultured selectively on mitis salivarius-bacitracine (MSB) agar plate. For biotyping of mutans streptococci, biochemical test was performed. From the culture, bacterial genomic DNA was prepared f3r using of PCR template for the identification of mutans streptococci at the species-level. Forty strains of mutans streptococci were isolated from dental plagues of 40 patients. The biotype Ⅰ (45%) and biotype Ⅳ (32.5%) were most frequently detected. The prevalence of s. mutans and S. sobrinus was 69% and 31%, respectively There was no positive relationship between species and biotypes of mutans streptococci and dft index. Our results revealed that biotype Ⅰ and S. mutans were frequently detected in Korean children and support that dental caries incidents by many causative factors not only bacterial factor.
임경화,유중학,이우영,장헌탁 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-
Performance Evaluation of end mills for high speed cutting has been performed in a view of dynamic characteristics and noise-vibration under operation. The tools tested in this research consist of three foreign country made and one korean made. In addition, numerical models using finite element method are established, which are confirmed by experimental results. The evaluation results has been feedback for developing high performance end mills for high speed cutting tools.
金花中 韓國學校保健學會 1988 韓國學校保健學會誌 Vol.1 No.1
For the evaluation of physical assessment by shool nurses, this study was designed in two steps physical assessment. The first step is the primary health screening by school health nurses. The second step is the physicians' physical examination of ill health students selected by school nurses. This study was conducted on a total of 3,525 students of three primary schools located in urban, township, and rural area during the period from May to June. 1987.all data were collected through direct observation & survey method. The main findings are as follows 1. The number of ill health students selected by two step method was more than that of one step method by the physician. 2. The types of ill health students selected by two step method had more diversity than that of one step method by the physician. 3. Budgets and time consumption for two step method were more reductive than that of one step method by the physician.
과반사성 방광환자에서 페놀에 의한 제3번 천골신경 차단효과
이중화 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2
Hyperreflexic bladder is a common problem in spinal cord lesion above sacral segment and the management remains a challenge. As a result of markedly elevated bladder pressures these patients often present with urinary incontinence, recurrent urinary tract infection and renal deterioration lastly. We treated the three hyperreflexic bladder patients (2 spinal cord lesions & 1 cerebrovascular accident) with 6% phenol injection through the third sacral foramen for nerve root block. Average of bladder capacity increment was above 300ml and maximal intravesical pressure did not rise above 40cmH2O. Continence was maintained in all cases. Therefore, all patients performed self - catheterization successfully and the volume was 300-500m1. There was no definitive complications. The third sacral nerve root block may be used for hyperreflexic bladder patients who cannot be controlled by anticholinergics.
이중화 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1
Hydronephrosis due to uroteropelvic junction obstruction is a well recorgnized and common disorder of children and young adults. Its clinical charateristics are vague generalized symptoms, so early detection is not easy. We reviewed fourty five cases of hydronephrosis due to ureteropelvic junction obstruction in the Department of Urology, Chungnam National University, from January, 1981 to December, 1990. The results are as follows; 1. Age distribution of hydronephrosis was 20 cases in old aged group(above 20 years old), 10 cases in 1st decade, 9 cases in 2nd decade and 6 cases in infants. Sex distribution was 28 cases(62.2%) in male and 17 cases(37.8%) in female(male to female ratio was 1.6: 1). 2. Of 45 cases, 39 cases(98.7 %) were unilateral and 6 cases(1.3 %) were bilateral. 'Left kidney was more involved than right. 3. Associated diseases were 13 cases(28.9%), of which congenital anomalies were 6 cases, such as horseshoe kidney(3 cases), ureterocele(1 case), complete duplicated ureter(1 case) and contralateral renal hypoplasia(1 case), and acquired diseases were 7 cases, such as pyonephrosis(3 cases), stone(3 cases) and spontaneous renal rupture(1 case). 4. The operative methods were nephrectomy(23 cases), pyeloplasty(22 cases), isthmectomy(3 cases) and partial nephrectomy(1 case). 5. The pyeloplasty was successful in 19 cases(86.4% ).
徐華中,金和定,丁斗禮,金善姬 조선대학교 기초과학연구소 1990 自然科學硏究 Vol.13 No.1
The changes of the acid value, saponification value, iodine value and peroxide value of fat and oil according to the preservation time and frequency of frying were determined. Soybean oil, corn oil, shortening and shrimp coated with flour batter were used in this experiment. The results were as follows ; The acid value and peroxide value were increased gradually by the preservation time and frequency of frying. The saponification value and iodine value were decreased as the preservation time and frequency of frying passed in soybean oil and corn oil, but increased in shortening. It is suggest that reasonable frying temperature of soybean oil, corn oil and shortening would be 160∼180℃ in home cooking.
Cyclosporin A 반복투여에 의한 랫드 간장의 조직학적 변화
윤화중,손무호,장병준,권구범 건국대학교 동물자원연구센터 1998 動物資源硏究誌 Vol.19 No.-
This study was carried out to investigate the histological changes of rat liver by repeated treatment of cyclosporin A that has been widely used for treating some autoimmune diseases and immunosuppressive drug in organ transplantation. 70 Sprague-Dawley rats were kept in experimental circumstances for 2 weeks and 50mg/kg B.W of cyclosporin A was injected once a day subcutaneously for 7 days and sacrificed at 1 hour, 1 day, 3 days, 7 days, 14 days, 28 days after the last injection. Histological changes were observed by H & E, Oil red O, and Masson trichrome stains and the results obtained were as follows. 1. 26 percent of animals has died during the treatment of cyclosporin A, and the animals survived were observed to be dull and inactivated. 2. The mild cytoplasmic changes of hepatocytes in portal area were observed by H & E stain in 1 hour lapse group and this finding was recovered with time lapse. 3. The lipid accumulation in periportal areas was observed in 1 hour and 1 day lapse groups and this finding was recovered with time lapse. 4. Although the cytoplasmic changes and lipid accumulation were started in the portal area and moved to intermediated and central areas, the changes in the intermediate and central areas were not as severe as that of portal area. 5. No specific increase of connective tissue was observed in all groups. 6. Histological changes of rat liver induced by cyclosporin A were recovered with time lapse, and the entire recovery was observed in 28 days lapse group after the last injection.