http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박진화,박석희,이효정,강재우,이경민,연평식 인간식물환경학회 2018 인간식물환경학회지 Vol.21 No.5
Forest therapy refers to activities that enhance the body’s immune system and improve health by utilizing various elements such as scents and landscapes. Forest therapy is expected to be used along with modern medical treatments for physical and mental illnesses. Natural volatile organic compounds (NVOCs) are one of the important resources of forest therapy. This study compared the concentration of NVOCs by season and time, and compared the correlation between NVOCs and climatic factors (temperature, humidity and wind speed). Air samples and climatic data were measured once a month in Pinus densiflora forest in the National Center for Forest Therapy from June 2017 to May 2018 and five components such as a-Pinene, b-Pinene, Camphene, Limonene, and Camphor were analyzed for NVOCs. The concentration of NVOCs by season is highest in summer, followed by spring, fall, and winter. The ratio of a-Pinene among NVOCs was high in summer. The NVOCs concentration over time was highest at 5 p.m. and lowest at 8 a.m. The correlation between the climatic factors and the NVOCs concentration was statistically significant for all three factors: temperature, humidity, and wind speed. The correlation was positive between NVOCs and temperature or humidity, whereas it was negative between NVOCs and wind speed. This study concludes that forest therapy using NVOCs can be more effective when the temperature and humidity within the stands are high and the wind speed is low to maximize forest healing effects.
대기중의 O₃, SO₂, NO₂의 측정을 위한 차분흡수 라이다의 오차해석
박진화,이용우 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-
In this study, we composed algorithm of DIAL(Differential Absorption Lidar). We investigated the absorption spectrum of O3, SO2, and NO2 dependent on wavelengths using the data base UV-Bank and determined the optimized wave- length model, Here, the selected optimal wavelengths are 292.00(λon), 295.20(λoff) for O3, 299.38(λon), 300.05(λoff) for SO2 and 448.00((λon), 449.85((λoff) for NO2. In particular, we established the supposed model of DIAL and simulated the error of measuring distance using the selected optimal wavelength. In the model-I with telescope of 300 mm diameter, laser energy of 3 mJ and transmission of 10000 shots, maximum distances are 4 km for O3 measurement and 5 km for SO2 and NO2 measurements, Also, in the model-II with telescope of 600 mm diameter, laser energy of 30 mJ and transmission of 10000 shots, maximum distances are 13 km for SO2 and NO2 measurements.
이온교환수지 촉매를 이용한 옥탄가 향상제인 TAME 합성반응의 연구
박진화 ( Jin Hwa Park ) 한국공업화학회 1996 공업화학 Vol.7 No.5
성질이 서로 다른 그물 구조형 이온교환수지인 Amberlyst-15, Amberlyst-15(wet)와 Amberlyst XN-1010을 가지고 고정충 상압 유통식 반응장치에서 옥탄가 향상제인 TAME 합성반응을 행하였다. Amberlyst-15가 Ambertyst-15(wet)와 Amberlysl XN-1010에 비해 활성이 좋았는데 그 이유는 겔형 미세입자 내부 활성점의 반응참여 정도가 크기때문으로 생각되며, TAME 합성반응의 최적 조건들은, 반응온도=135℃, 반응물 몰비(MeOH/I.A.A.)=1.0∼4.0, W/F=2.0∼4.0 gr.-cat. hr/gr.-mole일 때이었다. X-ray 회절 분석결과 2θ=20에서 styrene divinyl benzene이 가교결합을 나타냈으며, DSC 분석결과 열적 안정성의 순서로는 Amberlyst-15, Amberlyst-15(wet) 및 Amberlyst XN-1010이였다. 본 실험에서 구한 TAME 합성의 겉보기 활성화 에너지 값은 Amberlyst-15:Ea=12.36 kcal/mole, Amberlyst-15(wet):Ea=12.46 kcal/mole 및 Amberlyst XN-1010:Ea=14.72 kcal/mole이였다. TAME synthesis was studied in a fixed bed reactor with 3 different types of exchanged resins i.e, Amberlyst-15, Amberlyst-15(wet) and Amberlyst XN-1010. Amberlyst-15 has highest activity, presumably due to the higher reaction participation of the inner active sites of gel shape microparticular resin structure. The optimum reaction conditions for TAME synthesis were found as follows;reaction temperature of 135℃, molar ratio(MeOH/I.A.A) of 1.0∼4.0 and W/F of 2.0∼4.0 gr.-cat. hr/gr.-mole. The cross-linking bond of styrene divinyl benzene was observed at 2θ= 20 in XRD pattern. The DSC analysis showed that the thermal stability was in order of Amberlyst-15>Amberlyst-15 (wet)>Amberlyst XN-1010. The apparent activation energies of TAME synthesis reaction with Amberlyst-15, Amberlyst-15(wet) and Amberlyst XN-1010 were 12.36, 12.46 and 14.72 kcal/mole, respectively.
국민연금제도에 내재된 젠더 차이 변화 연구: 제도의 외적 및 내적개혁을 중심으로
박진화 ( Jinhwa Park ) 사단법인 아시아문화학술원 2020 인문사회 21 Vol.11 No.1
본 연구의 목적은 국민연금제도의 외적 및 내적개혁을 통해 제도에 내재된 젠더차이가 얼마나 변화되었는지를 분석하는 것이다. 문헌연구를 통한 분석결과는 다음과 같다. 첫째, 사업장 및 지역가입자의 적용범위 확대와 전업주부를 위한 임의가입의 확대, 그리고 경력단절여성을 위한 추납제도의 적용 등 외적개혁을 통해서는 사각지대에 놓여 있던 상당수의 여성들이 제도 속에 포괄되었다. 둘째, 수급자가 주로 여성인 유족연금과 분할연금, 그리고 출산크레딧 제도의 도입 및 개정 등 내적개혁을 통해서는 여성의 연금수급권이 강화되었다. 따라서 제도의 외적 및 내적개혁을 통해 국민연금제도에 내재된 젠더차이는 점차 그 격차가 완화된 것으로 나타났다. 이러한 결과는 여성의 불리함이 제도 속에 지속적으로 반영되어야 함을 시사한다. The purpose of this study is to analyze how the gender gap inherent in the system have changed through external and internal reforms of the National Pension System. First, a large number of women in blind spots were included in the system through external reforms, such as wider coverage of work places and regional subscribers, more voluntary subscriptions for housewives, and the application of a retirement system for career-breaking women. Second, women’s pension entitlements have been strengthened through internal reforms such as survivors’ pensions, partial pensions, and childcare credit system. Therefore, the gender gap in the national pension system was gradually reduced through external and internal reforms. This suggests that women’s disadvantages should continue to be reflected in the system.