http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
순음 성 에어컨 냉매 유동음 개선의 이론적 접근 및 실험적 고찰
정원혁(Wonhyuek Jeong),박영덕(Youngduk Park),나민균(MinKyun Na) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
Vehicle manufacturers are demanding a high quality and performance. In particular, the level and demand of NVH is increasing. Refrigerant flow noise from evaporator inside HVAC is one of the most important part of passenger’s comfort and feeling. It is occurs in various forms under various conditions. But most of them occur under Air Conditioner start or overload conditions. So, refrigerant flow noise have a general bandwidth spectrum, 2~10KHz. Contrary to general noise, abnormal flow noise has a peak frequency. In this study, various test and theoretical approach is adopted for solving the abnormal refrigerant flow noise. Based on the Strouhal Number theory and experimental results, It was found joint of between evaporator and pipe is the major factor for generating the Noise.
박인화, 나민균 충남대학교 약학대학 의약품개발연구소 2017 藥學論文集 Vol.32 No.-
Seven metabolites, nicotinamide (1), uracil (2), adenosine (3), tryptophan (4), lactic acid (5), alanine (6), and L-proline (7) were isolated from larvae of Tenebrio molitor Linnaeus. The chemical struc-tures of these entities 1-7 were determined by spectroscopic methods and comparing data with reported in the literature
경북산 지황과 중국산 지황의 Catalpol 함량 비교
주미,장해연,나민균 충남대학교 약학대학 의약품개발연구소 2013 藥學論文集 Vol.28 No.-
Rehmanniae Radix (Scrophulariaceae) has been traditionally used to treat hemoptysis, polydipsia, diabetes, anemia, palpitation, insomnia, and menstrual disorders. To compare the Rehmanniae Radix produced from Gyeongbuk with that of Chinese, a quantitative analysis on the major component, catalpol, was preformed by reversed-phase HPLC. Using a Luna C18(2) column, we carried out quantitative analysis with an isocratic solvent of acetonitrile and 0.1% phosphoric acid in water (2.5:97.5). Our results demonstrated that the content of catalpol in the Gyeongbuk's Rhemanniae Radix was 1.8 times higher than that of Chinese.