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서울 市內 一部 國民學校 兒童의 身長과 社會的 環境變數와의 關係에 관한 硏究
李銀玉,金應翊,蔡範錫 대한보건협회 1984 대한보건연구 Vol.10 No.1
This study was aimed to describe the relationship between height and environmental factors of entering school children and to elucidate the important variables associated with children's height for aids to health policies and educational activities. For this purpose 1099 children 523 boys and 576 girls from 6 elementary schools in Seoul were surveyed during May 1st to June 30th, 1983. The results are summarized as follows; 1. The mean height of children were 117.56㎝ in boys and 116.24㎝ in girls. 2. The mean height of children was the highest in breast fed children and lowest in artificial fed children. The relationship between the mean height of children and feeding methods during infancy was so significant. 3. According as the supplementary feeding during infancy was started earlier, the mean height of children was getting higher. The relationship between the mean height of children and the time for supplementary foods was so significant. 4. The mean height of children was getting higher by the regularity of meal time. The relationship between the mean height of children and regularity of meal time was so significant. 5. The mean height of children was getting higher as the socio-economic status score increased. The relationship between the mean height of children and socio-economic status score was so significant. 6. Among the all independent variables in this study, the important variables associated with height of children were socio economic status score, sibling numbers, parental height and appetite.
RF UBM Sputtering에 의해 증착된 hBN 박막의 미세구조가 cBN 상의 핵형성에 미치는 영향
이은옥,박종극,임대순,백영준,Lee Eun-Ok,Park Jong-Keuk,Lim Dae-Soon,Baik Young-Joon 한국진공학회 2004 Applied Science and Convergence Technology Vol.13 No.4
Si(100) 기판 위에 RF UBM 스퍼터링 (Unbalanced Magnetron Sputtering) 방법을 이용하여 BN 박막을 증착하였다. 이온 충돌 에너지에 영향을 주는 증착 압력과 기판 바이어스 전압을 변화시켜, 증착된 BN박막의 미세구조와 압축응력의 변화를 살펴보았다. 높은 증착 압력에서는 hBN laminate의 정렬도가 기판 바이어스 전압이 증가함에 따라 선형적으로 증가한 반면, 낮은 증착 압력에서는 낮은 기판 바이어스 전압에서 hBN laminate의 정렬도가 높게 나타났다. hBN 박막의 응력 변화와 표면 형상은 hBN laminate의 정렬도와 밀접한 관계가 있는 것으로 관찰되었는데, 이의 적절한 조절에 의해 압축응력의 증가 없이도 hBN 박막 위에 cBN 상의 핵 형성이 일어날 수 있었다. Boron nitride thin films were deposited on Si(100) substrate by RF (Radio-frequency) UBM (Unbalanced Magnetron) sputtering system. The effect of working pressure and substrate bias voltage on microstructure and compressive stress of boron nitride thin films has been investigated. In high working pressure, the alignment of hBN laminates increased with substrate bias voltage, in low working pressure, however, it was high in low substrate bias voltage. Compressive stress evolution and surface morphology of deposited BN films are closely related with the alignment of hBN laminates. The cBN phase without high compressive stress could be nucleated on hBN thin film by controlling the alignment of hBN laminates.
동통 평가도구 개발을 위한 연구 -한국 통증 어휘별 강도 순위의 유의도 및 신뢰도 검사-
이은옥,송미순 한국간호과학회 1983 Journal of Korean Academy of Nursing Vol.8 No.1
The main purpose of this study is to systematically classify words indicating pain in terms of their ranks in each subclass. This study is a part of developing a Korean Pain Measurement Tool. This study didnot include exploration of each word's dimension such as sensory or affective. Eighty three Korean words tentatively classified in 19 subclasses in previous study were used for this study. At least three to six words were included in each subclass and the words were randomly placed in which each subject indicates their rank of pain degree. One hundred and fifty nursing students and one hundred clinical nurses were requested to indicate the rank of each word. One hundred and sixteen students and eighty three nurses completed the ratings for analysis. The data were collected from June 1983 to July 1983. The data using ordinal scale were analyzed by Friedman ANOVA to test significant difference between rank means. All of pain words indicated significant rank mean difference in all of 19 subclasses. Some of the words were either cancelled or replaced by other words, or rearranged for their ranks. Subclasses of which words were cancelled were 1) Simple stimulating pain, 2) Punctuate pressure, 3) peripheral nerve pain, 4) radiation pain, 5) punishment-related pain, and 6) suffering-related pain. Subclasses of which words were replaced or rearranged were 1) incisive pressure, 2) constrictive pressure, 3) dull pain, 4) tract pain, 5) digestion-related pain and 6) fear-related pain. Four subclasses such as traction pressure, thermal, cavity pressure, and fatigue- elated pain indicated significant differences among rank means in each subclasses and showed no visible overlaps of the ranks among means. Further research is needed using high level measurement of pain degree of each word and more sophisticated analysis of the pain degrees. Three pain words which would be related to chemical stimulation were newly explored and included as a new subclass. Through this study, the total number of subclasses increases from 19 to 20 and the total number of Korean words in the scale decreases from 83 to 80.
공업제품에서의 Pentachlorophenol(PCP)의 추출방법 및 분석방법 개발
이은옥,한애란,최형기,이석우,채경선 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
페놀의 약 40배에 이르는 강한 독성을 나타내는 PCP는 EPA가 정해놓은 대표적인 유해물질이나 그 분석 방법은 토양이나 물에 존재하는 환경오염물질에 대한 측정방법이 주류를 이루고 있고 공업제품에 잔류하는 PCP에 관한 측정방법은 우리나라의 경우 성유제품, 가죽제품 등 몇몇 생활용품에 한정되어 있다. 그러나 국제적으로 인체와 관련된 제품의 경우 WTO의 TBT 협정의 예외 조항인 안전·환경·보건 분야에 대한 유리한 검사가 법적 규제보다 더 힘든 규제요인이 되고 있다. 본 연구실에서는 위에서 설명한 국내실정과 세계적인 추세에 따라 종이제품, 영색 제품, 도료, 페인트 등 공업제품에 대한 PCP의 추출방법 및 분석방법을 개발하고 있다. 종이제품에 함유된 PCP는 Bleached Kraft Pulp를 용출하여 solid phase extraction(SPE) system에 통과시켜 acylation화 한후 GC/MS로 검출하고 SIM으로 정량분석을 하였으며. 염료 중의 PCP는 염료의 한 종류인 Vat dye를 산성화시켜 hexane으로 추출하여 유도체화 한 PCP를 GC/MS를 이용하여 검출하였다. 또한 본 실험을 위하여 HPLC 및 GC/MS를 이용하여 PCP 표준물질 유도 체 분석조건을 확립하였다. 각 공업제품에 함유된 PCP 확인결과는 PCP 유도체의 경우가 순순한 PCP 만 의 검출보다 검출량이 2배 이상 증가되었으므로 GC/MS를 이용한 PCP 검출은 유도체화가 분석시 매우 중요한 factor로 작용한다는 것을 입증할 수 있었다.