http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이현(Lee, Hyun),김정현(Kim J.H.),이성복(Lee, Sung-Bok),엄정희(Eom, Jeong-Hee),이강오(Rhee, Kang-Oh),이태용(Lee, Tae-Yong) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.8
본 연구의 목적은 연령별 난시빈도를 알아보고 굴절난시와 각막난시, 내부난시의 연령에 따른 변화와 변화 요인을 알아보고자 하였다. 2010년 7월에 만5~59세의 청주지역 거주자 1,017명을 대상으로 굴절력과 각막전면굴절력 을 자동굴절검사기로 측정하였다. 난시빈도는 전체적으로 22.7%이었고, 5~9세에 8.9%에서 20대에 36.8%로 증가하였 다. 40대에는 19.2%로 감소하였다가 50대에 28.6%로 다시 증가하였다. 굴절난시와 각막난시, 내부난시의 J<sub>45</sub>성분은 연 령군에 상관없이 거의 일정하였으나 굴절난시와 각막난시의 J<sub>0</sub>성분은 30대 이후 감소하는 경향성을 보였다. 또한 J<sub>0</sub>성 분 중에서 수직방향 굴절력은 연령에 따라 변화가 없이 일정하였지만 수평방향 굴절력은 연령에 따라 큰 변화가 있 었다. 연령에 따른 난시빈도의 변화는 수평방향 굴절력의 변화에 기인하는 것으로 판단된다. The purpose of present study was to determine the frequency of RA with age and to investigate the age-related trends and changing-factors in RA, CA and IAs. The refractive power of the eye and the power of corneal anterior surface were measured with auto-refractor among 1,017 inhabitants aged 5 to 59 years in Cheongju in July 2010. The overall frequency of RA was 22.7%, and frequency of RA increased from 8.9% in 5~9 years age group to 36.8% in 20~29 years age group. It then dipped to 19.2% in 40~49 years age group but increased again 28.6% in 50~59 years age group. J<sub>45</sub> components for RA, CA, and IAs were fairly stable in different age groups, the changes in J<sub>0</sub> components for both RA and CA appeared to be decreased after age of 30 years. In addition, the refractive power on the vertical direction was changed slightly with age, but the refractive power on the horizontal direction was changed significantly with age. It was expected that the change in the frequency of astigmatism with age was due to the change in the refractive power of horizontal meridian.
HNO3 : H2O2 : HF 세척법을 이용한 실리콘 직접 접합 기술에 관한 특성 연구
이종석,성만영,최우범,주철민,이정훈 고려대학교 공학기술연구소 1999 공학논문집 Vol.37 No.1
We have studied the method of silicon direct bonding using the mixture of HNO₃, H₂O₂ and HF chemicals called the controlled slight etch (CSE) solution for the effective wafer cleaning. CSE, two combinations of oxidizing and etching agents, have been used to clean the silicon surfaces prior to wafer bonding. Two wafers of silicon and silicon dioxide were contacted each other at room temperature and post-annealed at 300∼1100℃ in N₂ ambient for 2.5 hour. We have cleaned silicon wafers with the various HF concentrations and characterized the parameters with regard to surface roughness, chemical nature, chemical oxide thickness, and bonding energy. It was observed that the chemical oxide thickness of the silicon wafer decreased with increasing HF concentrations. The initial interfacial energy and final energy post-annealed at 1100℃ for 2.5 hour measured by the crack propagation method was 122 mJ/㎡ and 2.96 J/㎡ , respectively.
이기훈,이우용,성동진,강석호 嶺南大學校 工業技術硏究所 1995 工業技術硏究所論文集 Vol.23 No.2
Two different types of grinding mills, i.e, ballmill and Horomill have been studied experimentally in a laboratory scale. The effects of fractional volume filing of mill by grinding media(J factor), fractional filing of grinding media void by powder(U factor) and the time of grinding were investigated. Grinding efficiency was determined by measuring the weight fraction of below 75㎛ particles after milling. The samples used in the studies were glass beads of spherical shape as well as glass cullets of irregular shape. In addition, a statistical design of parametric study of ballmill is presented . The study was conducted by starting with two level factorial experiments to identify the most significant parameters in grinding, and concluding with response surface methodologies to establish an optimum operation conditions for the grinding. It was observed that the grinding efficiency of Horomill was superior to that of ballmill by 1.2 to 5 times regardless of grinding time. The optimum operating conditions for ballmill obtained from statistical design of experiments were found to be 0.25∼ 0.42 for J-factor, and 0.38∼0.42 for U-factor and at the grinding time of 100 minutes. At the optimum process conditions approximately 100% of 75㎛ under size particles were obtained.
이진오,성호경,고주환,유용운,이종원,김진용,이장규 대한핵의학회 1975 핵의학 분자영상 Vol.9 No.2
심히 진행된 위암 환자에서 경정맥 포도당 투여시의 insulin 및 성장 호르몬 반응을 관찰하고 경구 투여시와 비교 검토하였다. 다시 위암 환자에게 아미노산 용액을 투여하고 혈중 insulin 농도와 성장 호르몬 농도 및 혈당량을 경시적으로 측정하고 정상인에서의 결과와 비교하여 다음의 결과를 얻었다. 1) 위암 환자에게 포도당 용액을 경구 부하하면 혈중 포도당 농도의 상승은 감소되었다. 2) 위암 환자에게 포도당 용액을 경구투여하였더니 insulin 반응은 정상인에서보다 감소되어 경정맥투여시와 유사하였다. 3) 위암 환자에게 포도당 용액 또는 아미노산용액을 경정맥 투여하여 성장 호르몬 농도의 상승을 관찰하였다. 4) 위암 환자에게 아미노산 용액을 정맥내로 투여하면 정상인에서와 같이 경구투여시에 비하여 insulin 반응의 감소가 관찰되었다. 5) 위암 환자에게 포도당 경정맥 투여시의 insulin 반응이 경구 투여시와 유사한 점에 대하여 고찰하였으며 아미노산 경정맥 투여시에는 insulin 반응에 유의할 필요성을 지적하였다. Glucose tolerance, insulin and growth hormone responses following glucose for amino acids administration by means of parenteral or oral load were studied in patients with far advanced gastric cancer. Hormone responses following nutrients load showed in patients with gastric cancer were compared to those of healthy subjects. Results were as follows: 1) Blood sugar appearance following oral glucose administration was diminished in patients with far advanced gastric cancer. 2) The insulin responses of gastric cancer following oral glucose were also diminished as compared to that of normal subjects and were identical with parenteral route. 3) Parenteral administration of glucose or amino acids to patients with gastric cancer resulted in a increase of plasma growth hormone level. 4) Lower insulin response to amino acids was observed on parenteral administration in patient with gastric cancer as in healthy subjects. 5) Author discussed that the low insulin response after oral glucose administration showed in gastric cancer, and any additional insulin requirement arise when longer periods of parenteral amino acid administration are necessary, as in the patient with malnutritions. $quot;
성정호,성규보,이승로,함창곡 한양대학교 의과대학 1984 한양의대 학술지 Vol.4 No.1
Tuberous Sclerosis is a rare congenital disease of neuroectodermal origin, inherited as AD, and known as Bourneville's disease or Epiloia. This lesion has clinical triad of mental retardation, seizure and adenoma sebacevm, and associated hamartoma or cyst is found at any organ, especially at brain, skin and kidney. In brain, hamartomas are found largely at cerebrum and more specifically at subependymal layer of ventricle, especially near the foramen of Monro. Authors experienced 2 cases of Tuberous Sclerosis, who have typical clinical symptomes and Computed Tomographic findings of brain and kidney, and reported with a brief review of the literatures.
李基寧,吳鎭燮,成樂應,洪思岳,金楨鎭 서울대학교 1964 서울대학교 論文集 Vol.15 No.-
Chickens fed under the same conditions were divided 4 groups (each group 20 hens), One group (D) was used as control (only standard diet) Other three groups (A.B.C) were given every day standard diet with ginseng extract (small, medium and large doses as part Ⅰ) After 140 days each group(6-12 hens) were irradiated with ??-Ray(900r) (whole body) and determined the contents of tissue(liver, intestine) lipid (cholesterol, phospholipid, triglyceride) and serum lipid after 24 hrs. The results obtained are as follows: 1. The contents of total cholesterol and phospholipid of liver, intestine and serum showed no significant difference between each groups. 2. The contents of triglyceride of liver, intestine and serum increased in the irradiated group, because the increased rate of group A.B.C was smaller than group E. 3. The effects of ginseng extract on lipid contents of irradiated chickens showed some difference by administered doses of ginseng.
이면우,유한정,김상두,오세관 한국경영과학회 1989 한국경영과학회 학술대회논문집 Vol.- No.1
The purpose of this study was to demonstrate and to validate feasibility of the earlier proposal on ergonomic approach for High-Touch product development, which was published in IE Interface (April, 1988). Based on the proposed methods, six new High Touch products were developed. Expert opinions and consumer monitoring results, which was carried out in the United States, showed that these High Touch products would be highly regarded in the world market. It is recommended that the proposed efforts could provide a prosperous niche market for Korean industry in the High Tech-High Touch Era.