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영남지역 초등학생과 고등학생의 식습관 및 음식기호도에 관한 연구
윤영옥,이영순,김성미,Yoon Young-Ok,Lee Young-Soon,Kim Sung-Mee 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.1
To analyze the dietary behavior and food preference of Korean youth, we surveyed 140 elementary school 6th grade students and 154 high school first grade students in Youngnam Provinces. The average height and weight for the elementary school students were 153cm and 45.3kg for boys and 153.4cm and 44.6kg for girls. The body types depending on the body mass index(BMI) were 45.7% for under-weight, 47.1% for standard, 3.6% for overweight and 3.6% for obesity. The average height and weight for the high school students were 172.5cm and 64.5kg for boys and 160.1cm and 51.7kg for girls. The body types depending on the BMI were 11.0% for under-weight, 70.8% for standard, 13.0% for overweight and 5.2% for obesity. In their food preference, they preferred one-dish food to main dishes and rice with cereals was more popular among high school students. There were higher standard scores in fruit, snack, fried, and Kimchi dishes and high school students showed a high preference especially for snack and fried foods. The Kimchi dishes were more popular among elementary school students and they showed high scores in those dishes regardless of how they were cooked. There was the lowest preference for Korean vegetable salad and the highest for food cooked with meat In conclusion, a difference was found in the food preference of elementary school and high school students and the nutrient intake of elementary school students was lower than that of high school students. Therefore, elementary schools should provide proper nutritional education for students.
갑상선 질환에서 혈청 Microsome 항체 측정의 의의
윤영옥 ( Young Ok Yoon ),장순모 ( Soon Mo Chang ),박호자 ( Ho Ja Park ),이준옐 ( Jun Yoel Lee ),양기화 ( Ki Hwa Yang ),정인숙 ( In Sook Chung ),강석진 ( Seok Jin Gang ) 대한임상검사과학회 1984 대한임상검사과학회지(KJCLS) Vol.16 No.1
Since Roitt and his associates discovered antithyroglobulin antibody in serum of the patient with Hashimoto`` s thyroiditis, in 1956, several anti-thyroid autoantibodies were discovered, and have been attributed to the diagnosis of thyroid disease. The authors investigated the incidence and titers of antimicrosomal antibody in the 515 patients with various thyroid disease from October, 1981 to December, 1983, and 104 normal healthy persons, measured by tanned red cell hemagglutination technic. 1) Twenty healthy males were all negative, and ten (11.9%) out of eighty-four healthy female were positive. 2) The disease group with high positive rate included Graves`` disease; 222 cases (91.4%) out of 243 cases, Hashimoto``s disease; 112 cases (92.6%) out of 121 cases, all eight cases of postpartum thyroiditis. 3) The disease group with low positive rate included non-toxic nodular goiter; 14 cases (17.5%) out of 80 cases, non-toxic diffuse goiter; 11 cases (31.4%) out of 35 cases, thyroid tumor; 2 cases (11.1%) out of 18 cases, subacute thyrolditis; 3 cases (30%) out of 10 cases. 4) In 32 cases of Graves`` disease that were follow up more than three times, the titers of anti-microsomal antibody reveal marked fluctuation. In summary, although the positive rate of the anti-microsomal antibody in the Graves disease, Hashimoto``s disease and postpartum thyroiditis, reveal diagnostic significance, the titer of the anti-microsomal antibody which examine in one point, cann`t contribute to reflect the severity of the disease, because of the titer is fluctuated during the course of the disease.
반용융 압출시 A7075 합금의 압출 압력 평가 및 Process Window
윤영옥(Young-Ok Yoon),장동인(Dong-In Jang),임현규(Hyun Kyu Lim),김세광(Shae K. Kim) 한국소성가공학회 2012 한국소성가공학회 학술대회 논문집 Vol.2012 No.5
The present study discussed extrudability improvement for 7075 Al wrought alloy by thixoextrusion, with emphasis on controlling thixoextrusion parameters, such as initial ram speed and extrusion temperature of billet in semisolid state. The maximum extrusion pressure for thixoextrusion was greatly decreased than that of conventional hot extrusion. This will contribute to extrudability in terms of extrusion pressure, which in tum means that shorter process time is required and smaller extrusion machine can be applied for the same operation. The elongated grains to extrusion direction were generally observed during conventional hot extrusion, while the thixoextruded microstructures were isotropic.
Glycosylated Hemoglobin의 정상치와 그 측정 의의
윤영옥 ( Young Ok Yoon ),지영자 ( Young Ja Ji ),배세엽 ( Se Youb Bae ),김약수 ( Yak Soo Kim ) 대한임상검사과학회 1981 대한임상검사과학회지(KJCLS) Vol.13 No.1
From september in 1980 to june in 1981. this study is based on data gathered from 123healthy Korean people (Male=62, Female=61) ranging age of 19 to 68 years old in Kang Nam Saint Mary``s hospital. The purpose of this test was to findout normal values and normal ranges of glycosylated hemoglobin in adult Korean. The glycosylated hemoglobin was determined by cation exchange chromatography methods. The results of the test are summerized as follows; 1. The mean glycosylated hemoglobin in 62 male was 7.14±0.79%. 61 female was 6.90±0. 90%. and total was 7. 02±0.85%. 2. The normal range was the mean±2 standard deviations. Female; 5.1~8.7%, Total; 5.32~8.72%
윤영옥 ( Young Ok Yoon ),김세광 ( Shae K. Kim ) 한국주조공학회 2010 한국주조공학회지 Vol.30 No.6
The aim of this study is to characterize a thixoextruded 7075 Al wrought alloy bar in terms of its isotropic behavior through the optical microscope, mechanical test and electron back scattered diffraction. It is also discussed of the extrudability improvement for 7075 Al wrought alloy by thixoextrusion, with emphasis on controlling thixoextrusion parameters. Hot extrusion shows that the maximum extrusion pressure depends on their characteristics in terms of flow stress and hot workability. In the contrary, thixoextrusion demonstrates that the maximum extrusion pressure is almost uniform regardless of the experimental parameters, such as initial ram speed, die bearing length and thixoextrusion temperature. The hot extruded microstructures become elongated to extrusion direction, while the thixoextruded microstructures are isotropic and homogeneously distributed due to the existence of liquid phase between solid grains during the process. The grain refinement due to dynamic recrystallization during thixoextrusion has been also occurred. Subsequent recrystallization would lead to the strengthening of mechanical properties, as observed in the study. The important point is that the values of tensile, yield strength and elongation of the thixoextruded bar without plastic deformation are similar to those of the hot extruded bar with severe plastic deformation.