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수도권에서 아황산가스의 황산염으로 전환시 각 과정의 상대적 기여도
배수야,김용표 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.4
The major conversion processes of SO₂ to sulfate arc reactions in gaseous, aqueous phase and on dust surface. Using the measurement data in Ganghwa, the background area of metropolitan Seoul Area, the relative contiribution of the conversion processes am estimated. Generally, aqueous cloud is the most important conversion path followed by dust surface. gas, and aqueous aerosol. Importance of conversion on dust surface increases for the dust storm period. The total conversion rate values over the metropolitan Seoul area are between 1.5 and 8.8×10^(-11) mole m_(-3) air.
Bae, Soo Ya,Hong, Song-You,Lim, Kyo-Sun Sunny Hindawi Limited 2016 Advances in meteorology Vol.2016 No.-
<P>A method to explicitly calculate the effective radius of hydrometeors in the Weather Research Forecasting (WRF) double-moment 6-class (WDM6) microphysics scheme is designed to tackle the physical inconsistency in cloud properties between the microphysics and radiation processes. At each model time step, the calculated effective radii of hydrometeors from the WDM6 scheme are linked to the Rapid Radiative Transfer Model for GCMs (RRTMG) scheme to consider the cloud effects in radiative flux calculation. This coupling effect of cloud properties between the WDM6 and RRTMG algorithms is examined for a heavy rainfall event in Korea during 25–27 July 2011, and it is compared to the results from the control simulation in which the effective radius is prescribed as a constant value. It is found that the derived radii of hydrometeors in the WDM6 scheme are generally larger than the prescribed values in the RRTMG scheme. Consequently, shortwave fluxes reaching the ground (SWDOWN) are increased over less cloudy regions, showing a better agreement with a satellite image. The overall distribution of the 24-hour accumulated rainfall is not affected but its amount is changed. A spurious rainfall peak over the Yellow Sea is alleviated, whereas the local maximum in the central part of the peninsula is increased.</P>
Bae, Soo Ya,Jung, Chang Hoon,Kim, Yong Pyo Elsevier 2010 Journal of aerosol science Vol.41 No.3
<P><B>Abstract</B></P><P>An aerosol dynamics equation for the below-cloud scavenging process considering phoretic and electric charging effects in addition to the conventional mechanisms (the Brownian diffusion, interception, and impaction) is developed by using the moment method. Then, the dynamics of particle size distribution by the below-cloud scavenging process is calculated by using the developed equation and verified with the measurement data. The calculated particle size distribution changes are quite small compared to the measured changes. The calculated removal rate is smaller by 10<SUP>−2</SUP>–10<SUP>−3</SUP> than the measured data when only the conventional mechanisms are considered. With the extended mechanisms, the scavenging coefficient increases upto 20 times, mainly for the particle size range of 0.1μm<<I>d<SUB>p</SUB></I><3.0μm. However, the difference between the calculated and measured scavenging coefficient is still large, especially, for <I>d<SUB>p</SUB></I><0.1μm. Other possible scavenging mechanisms that might affect the below-cloud scavenging process such as coagulation and condensational growth of hygroscopic particles, turbulence, and updraft into cloud are discussed. It is recommended that further studies on wet scavenging process are needed.</P>
Bae, Soo Ya,Jung, Chang Hoon,Pyo Kim, Yong Pergamon Press 2006 Journal of aerosol science Vol.37 No.11
<P><B>Abstract</B></P><P>An analytical expression for wet scavenging coefficient for below-cloud scavenging that is function of collision efficiency, raindrop terminal velocity, raindrop size distribution, and particle size distribution is obtained and tested. The parameters of raindrop size distribution are related with rain intensity since rain intensity can be easily measured. Then, the moment method is applied to the expression for scavenging coefficient to derive an analytical expression. Two widely used raindrop size distribution, Marshall-Palmer and lognormal distributions are considered and lognormal particle size distribution is assumed. The derived scavenging coefficient expression is applied to three model environments, urban, rural, and desert to demonstrate its applicability.</P>
Development of an Aerosol Dynamics Model for Dry Deposition Process Using the Moment Method
Bae, Soo Ya,Jung, Chang Hoon,Kim, Yong Pyo Taylor Francis 2009 AEROSOL SCIENCE AND TECHNOLOGY Vol.43 No.6
<P> An aerosol dynamics model for dry deposition process is developed based on the moment method. Since it is hard to fully apply the moment method to the widely used dry deposition velocity expressions based on the resistance theory, the dry deposition velocity expression by Raupach et al. (2001) is used. Detailed deposition mechanisms such as Brownian diffusion, gravitational settling, and impaction are considered in the expression. To verify the validity of the derived dynamic equation, aerosol dynamics for the dry deposition process is estimated with the expressions of Raupach et al. (2001), of Wesely (1989) modified for particles (Seinfeld and Pandis 1998), in CMAQ, and with constant value used in RAINS-ASIA. Those expressions give different dynamics. Generally, the result for this study is between the result of modified Wesely's expression and CMAQ. When using the modified Wesely's expression with the number of sections being equal or smaller than 10, the resultant size distribution does not give the peak shape accurately.</P>
류마티스 : 전신홍반루푸스에서 면역억제제 치료 없이 발생한 크립토코쿠스 수막염
배수야 ( Soo Ya Bae ),김정연 ( Jeong Yeon Kim ),오현호 ( Hyun Ho Oh ),최성진 ( Seong Jin Choi ),이종호 ( Jong Ho Lee ),박문 ( Moon Park ),한성훈 ( Seong Hoon Han ) 대한내과학회 2015 대한내과학회지 Vol.89 No.6
Cryptococcosis is an opportunistic infection that generally occurs in patients with cell-mediated immune dysfunction and involves the central nervous system. Infection is a major cause of morbidity and mortality in systemic lupus erythematosus (SLE) patients because of its innate immune dysfunction along with the administration of steroids and immunosuppressants. However, central nervous system cryptococcosis has rarely been reported in SLE patients. A timely diagnosis is critical because of its significant mortality and morbidity. Most cases of cryptococcal meningitis in SLE patients have been reported in those treated with steroids or immunosuppressants. We report on a SLE patient not on medication, who was diagnosed with cryptococcal meningoencephalitis. (Korean J Med 2015;89:742-745)
증례 : 혈액종양 ; 재발한 무거대핵세포혈소판감소증의 Cyclosporine 치료
배수야 ( Soo Ya Bae ),한태희 ( Tae Hee Han ),손병석 ( Byeong Seok Sohn ),오현호 ( Hyun Ho Oh ),최성진 ( Seong Jin Choi ),박문 ( Moon Park ),유영진 ( Young Jin Yuh ) 대한내과학회 2016 대한내과학회지 Vol.90 No.3
Acquired amegakaryocytic thrombocytopenia (AAMT) is an unusual disease characterized by severe thrombocytopenia resulting from a marked decrease in bone marrow megakaryocytes. Various pathogenic mechanisms have been suggested, and several treatments have been tried, with varying outcomes. In some case reports, cyclosporine and anti-thymocyte globulin have had good clinical results in the treat of AAMT. There are few reports on the treatment of relapsed AAMT with cyclosporine. We report a patient with relapsed AAMT who was treated successfully with an additional course of cyclosporine. The initial remission was achieved with cyclosporine 4 years earlier and a second remission was induced by cyclosporine. Cyclosporine may be effective for relapsed AAMT that previously responded to cyclosporine. (Korean J Med 2016;90:258-261)