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조시기,최경빈,강영규,Jho Shi-Gie,Choi Kyung-Bin,Kang Yung-Kyu 대한설비공학회 1986 설비저널 Vol.15 No.3
The performance of vertical and horizontal tubes with multiple fins of rectangular and triangular cross section was investigated theoretically for boiling heat transfer. A simple method for numerical program assuming one-dimensional heat flow was used to predict the performance of these finned tubes and their bundles. The object of the new study was to develop optimum fin design, especially in tube bundles, considering from a viewpoint to minimize the space in which the maximum heat flux density was expected.
스러그 흐름내에서의 고체입자의 열전달 특성에 관한 연구
문병수,최경빈 ( Byung Soo Moon,Kyung Bin Choi ) 충북대학교 산업과학기술연구소 1995 산업과학기술연구 논문집 Vol.9 No.2
Abstract_Roman The process of heating or cooling granular or pulverized solids is receiving increased attention in the chemical industry. In many caaes of cooling or heating granular solids it is necessary or advantageous to keep the solids physically s
국내 6개 지역 종합병원에 내원한 소아 알레르기 환자에서의 혈청 Immunoglobulin E 농도에 관한 연구
김주화 ( Joo Hwa Kim ),최경빈 ( Kyung Bin Choi ),문진화 ( Jin Hwa Moon ),이하백 ( Ha Baik Lee ),김성원 ( Sung Won Kim ),국명희 ( Myung Hee Kook ),김자경 ( Ja Kyung Kim ),김우경 ( Woo Kyung Kim ),박용민 ( Yong Min Park ),이소연 ( S 대한소아알레르기호흡기학회 2012 소아알레르기 및 호흡기학회지 Vol.22 No.1
Purpose: We investigated the change in serum total immunoglobulin E (IgE) and allergen-specific IgE according to allergic diseases and age. Methods: Allergic markers of children under 18 years of age with allergic diseases for the last 5 years were collected from 12 hospitals nationwide. The total data was 9,710. Data about levels of serum total IgE and allergen-specific IgE to 15 common allergens were collected. Results: In children with asthma, serum total IgE was higher in older age than in younger age until age 7 to 12 years, at which time the level was highest (paper radioimmunosorbent test, 526.7 IU/mL; UniCAP, 339.9 IU/mL). The level was lower in older age than that during younger age. This change was similar to that in children with allergic rhinitis and atopic dermatitis. The level was highest at ages 7 to 12 years in children with allergic rhinitis, and at age 10 to 12 years in children with atopic dermatitis. In children with both asthma and allergic rhinitis, as well as in children with all three diseases, the change in serum total IgE was similar to that of children with an isolated disease. The highest level in children with all three diseases was higher than that in children with an isolated disease. The analysis of allergen-specific IgE positivity showed that food allergens were dominant before the age of 2 years, and that aeroallergens such as house dust mites were dominant. Conclusion: Serum total IgE in Korean children with allergic diseases was higher in older age than in younger age until the ages of 7 to 12 years, and then the change in total IgE by age was the opposite.
일차 산소 직접 분사형 다중 노즐 미분탄 순산소 스월 연소기의 성능시험
이대근(Dae Keun Lee),노동순(Dong-Soon Noh),서동명(Dong Myung Seo),고창복(Chang-Bog Ko),이은경(Eun Kyung Lee),최경빈(Kyong-Bin Choi) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The development of Oxy-PC(pulverized coal) burner and its preliminary test were performed. The design concepts of the burner were the adoptions of primary-oxygen direct-injection without the dilution with the recycled flue gas and through multi-nozzle for fuel-oxidant mixing and stable burning, and of high intensity swirler to coping with the reduction of swirling momentum due to a reduced gas flow rate of Oxy-PC combustion compared with Air-PC case. The exhaust gas analyses were conducted for a variety of experimental conditions of O₂ concentration, swirl number, primary O₂ flow rate and tertiary oxidant flow rate. The representative results are the achievement of high concentration CO₂ over 95% and the reduction of NO<SUB>x</SUB> emission to 48㎎/MJ by the injection of tertiary O₂/CO₂ mixture.
이세균,최경빈 충북대학교 건설기술연구소 2004 建設技術論文集 Vol.23 No.1
An experimental study on the pressure losses of air through the municipal solid wastes, either dry or wet, has been carried out in this study. Generally the pressure loss increases as the air velocity and depth of solid wastes increase. However, there are some unexpected phenomena for the dry wastes with high air velocity and low depth due to the strong floating effects of solid wastes. Such effects are also shown in wet wastes when the moisture content is not sufficiently high. The results of this study are useful in designing the dimension of second combustion chamber of multi-stage combustion incinerator.