초진단 폐결핵환자의 화학요법 및 내성검사성적

홍성문 ( Sung Moon Hong ),신승기 ( Yung Kee Shin ),이찬세 ( Chan S. Lee ) 대한결핵 및 호흡기학회 1961 Tuberculosis and Respiratory Diseases Vol.10 No.-

모유 섭취 신생아 유래 Lactobacillusacidophilus의 생리적 특성

홍성문 ( Sung Moon Hong ),소병천 ( Byung Chun So ),윤승원 ( Seumg Won Yoon ),김철현 ( Cheol Hyun Kim ) 한국유가공기술과학회 2012 Journal of Dairy Science and Biotechnology (JMSB) Vol.30 No.1

Lactobacillus acidophilus isolated from the feces of a 7-day-old breast-fed infant was characterized to examine the scope of its commercial use. Forty-three Lactobacillus strains, which could grow at pH 5.5, were isolated. From these Lactobacillus isolates, 14 Lactobacillus strains were selected, which demonstrated more than 80% viability and homofermentative lactic fermentation. Finally, 9 L. acidophilus strains (NB 201~NB 209) were identified as candidate strains based upon biochemical properties, carbohydrate utilization, and cellular fatty acid composition. L. acidophilus isolates demonstrated a survival rate of more than 80% when exposed to pH 2.5 for 2 h. In particular, L. acidophilus NB 204 showed a strong acid tolerance, with a 71% survival rate even at pH 2.0. L. acidophilus isolates also manifested high bile acid tolerance; more than 87% of the cells survived on agar containing 1% bile extract, except for L. acidophilus NB 206, which showed a 73% survival rate. All L. acidophilus isolates were confirmed to have proteolytic activity; L. acidophilus NB 204 and NB 209 yielded higher levels of TCA-soluble peptides and free amino acids. The β-galactosidase activity of the L. acidophilus isolates was in the range of 1.97~2.45 units/mL.

이미지 프로세싱을 활용한 개구부 추락 사고예방에 관한 연구

홍성문(Hong Sung Moon),김병춘(Kim Buyng Chun),권태환(Kwon Tae Whan),김주형(Kim Ju Hyung),김재준(Kim Jae Jun) 한국BIM학회 2016 KIBIM Magazine Vol.6 No.2

While institutional matters such as improvement on Basic Guidelines for Construction Safety are greatly concerned to reduce falling accidents at construction sites, there are short of studies on how to practically predict accident signs at construction sites and to preemptively prevent them. As one of existing accident prevention methods, it was attempted to build the early warning system based on standardized accident scenarios to control the situations. However, the investment cost was too high depending on the site situation, and it did not help construction workers directly since it was developed to mainly provide support operational work support to safety managers. In the long run, it would be possible to develop the augmented reality based accident prevention method from the worker perspective by extracting product information from BIM, visually rendering it along with site installation materials term and comparing it with the site situation. However, to make this method effective, the BIM model should be implemented first and the technology that can promptly process site situations should be introduced. Accordingly, it is necessary to identify risk signs through lightweight image processing to promptly respond only with currently available resources. In this study, it was intended to propose the system concept that identified potential risk factors of falling accidents by histogram equalization, which was known as the fastest image processing method presently, used visual words, which could enhance model classification by wording image records, to determine the risk factors and notified them to the work manager.

Streptococcus thermophilus와 Lactobacillus casei를 이용한 미강 첨가 발효유의 품질특성에 관한 연구

홍성문 ( Sung Moon Hong ),구민성 ( Min Seong Gu ),정의천 ( Eui Chun Chung ),강필구 ( Pil Gu Kang ),김철현 ( Cheol Hyun Kim ) 한국유가공기술과학회 2015 Journal of Dairy Science and Biotechnology (JMSB) Vol.33 No.1

본 실험은 쌀겨를 발효식품에 이용하고자 상업용 균주인Streptococcus thermophilus(ST-body1), Lactobacillus casei(LC-10)을 이용하여 발효유를 제조하고, 발효시간 경과에 따라 적정산도, 유산균수, 유기산 측정, 유리아미노산 측정, 관능검사를 측정하였다. ST-body1은 대조구와 처리구 모두발효 3시간째에 급격하게 산도가 증가하였다. 하지만 LC-10은 산도의 증가폭이 크지 않아 24시간 발효를 하여도 산도가 0.5%를 넘지 못하였다. 균주의 생균수는 대조군과 실험군 모두 배양 24시간 동안 뚜렷한 경향 없이 106~109 CFU/mL 사이로 존재하였다. 유기산 및 유리아미노산 측정 결과,ST-body1 생장 및 생육에는 glutamic acid가 LC-10 생장 및 생육에는 aspartic acid가 밀접한 관계를 보였으며, LC-10은 발효 시 methionine이 20~30시간 경에 감소하다가 증가하는 것으로 보아 methionine을 발효 시 이용하고, 재생산하는 것으로 추측된다. 관능검사 결과, 선호도는 ST-body1이 미강의 존재 유무에 관계없이 우수하였다. The present study was carried out to evaluate the preparation of the fermented milks with rice bran and to prove that the bacteria used are necessary for providing amino acids in this process. The rice bran on fermented milk with Streptococcus thermophilus (ST-body1) and Lactobacillus casei (LC-10). The fermentation limit was set until acidimetry score reaches 1. There are reports of titratable acidity, pH, viable cell count and amounts of organic acids affecting amino acid production about physical and chemical analysis measured using HPLC. Finally, sensory test was surveyed. In this study, the rate of acidification was higher in the fermented milk with rice bran than in the common fermented milk. In case of the number of cells was 1.0×108 CFU/mL in group. The lactic acid and citric acid content in yogurts prepared with rice bran using Streptococcus thermophilus (ST-body1) and Lactobacillus casei (LC-10) was higher than that in the control yogurt. Amino acids derived by rice bran were effected in fermentation for each bacteria``s necessary amino acid production, and it made bacteria growth larger. From the physical test of the fermented milk with rice bran, flavor, texture, sweetness, overall taste of the fermented milk of Streptococcus thermophilus (ST-body1) were found to be much better than those of the other groups. The results obtained for the fermented milk prepared with rice bran using Streptococcus thermophilus (ST-body1) are significant.

Liver function in Clonorchis sinensis-infected rabbits

Sung-Jong Hong(홍성종),Ho-Choon Woo(우호춘),Min-Hun Chung(정민헌),Joo-Hwan Ahn(안주환),Young-Soo Moon(문영수),Chin-Hak Choi(최진학) 대한기생충학열대의학회 1994 The Korean Journal of Parasitology Vol.32 No.3

비정형 건물일체형 태양광 발전 시스템 규칙기반 BIM설계 지원 도구 개발

홍성문,김대성,김민철,김주형,Hong, Sung-Moon,Kim, Dae-Sung,Kim, Min-Cheol,Kim, Ju-Hyung 한국BIM학회 2015 KIBIM Magazine Vol.5 No.4

Korea has been at the forefront of green growth initiatives. In 2008, the government declared the new vision toward 'low-carbon society and green growth'. The government subsidies and Feed-in Tariff (FIT) increased domestic usage of solar power by supplying photovoltaic housing and photovoltaic generation systems. Since 2000, solar power industry has been the world's fastest growing source with the annual growth rate of 52.5%. Especially, BIPV(Building Integrated Photovoltaic) systems are capturing a growing portion of the renewable energy market due to several reasons. BIPV consists of photovoltaic cells and modules integrated into the building envelope such as a roof or facades. By avoiding the cost of conventional materials, the incremental cost of photovoltaics is reduced and its life-cycle cost is improved. When it comes to atypical building, numerous problems occur because PV modules are flat, stationary, and have its orientation determined by building surface. However, previous studies mainly focused on improving installations of solar PV technologies on ground and rooftop photovoltaic array and developing prediction model to estimate the amount of produced electricity. Consequently, this paper discusses the problem during a planning and design stage of BIPV systems and suggests the method to select optimal design of the systems by applying the national strategy and economic policies. Furthermore, the paper aims to develop BIM tool based on the engineering knowledge from experts in order for non-specialists to design photovoltaic generation systems easily.

연구 논문 : Mn/TiO2 촉매를 이용한 저온 SCR 반응에서 산소의 영향

이상문 ( Sang Moon Lee ),최현진 ( Hyun Jin Choi ),홍성창 ( Sung Chang Hong ) 한국공업화학회 2012 공업화학 Vol.23 No.1

본 연구는 Mn/TiO2 촉매를 이용한 저온 NH3-SCR 반응에서 산소의 역할에 대한 영향을 기술하였다. 촉매의 격자산소는 저온 SCR 반응에 참여하며, 기상의 산소는 환원된 촉매를 재산화 시키는 역할을 한다. 이러한 산소의 redox 특성은 SCR 반응활성에 중요한 요소로 작용하며, 격자산소의 이용능력은 표면에 노출된 망간의 산화상태에 큰 영향을 받는다. TiO2 담체 표면에 존재하는 Mn이 MnO2의 망간산화물 형태로 존재할 때가 Mn2O3의 형태로 존재할 때보다 우수한 redox 특성을 가지며, 이러한 망간의 산화상태는 TiO2의 비표면적에 큰 영향을 받는다. This study presents the effect of oxygen on the NH3 selective catalytic reduction (SCR) by Mn/TiO2 catalyst. The lattice oxygen of catalysts is participate in the low temperature SCR, and the gaseous oxygen directly takes part in the rexoidtion of reduced catalyst. These redox properties of oxygen an play important role in SCR activity and the available capability of lattice oxygen depends on the manganese oxidation state of the catalyst surface. MnO2 species has a higher redox property than that of Mn2O3 species on deposited TiO2 surface and these manganese oxide states strongly depend on the TiO2 surface area.

백금 코팅 메탈필터소재의 Soot 산화반응에 대한 활성 연구

홍성창 ( Sung Chang Hong ),김성수 ( Sung Su Kim ),이상문 ( Sang Moon Lee ),장두훈 ( Du Hun Jang ),배세현 ( Se Hyun Bae ) 한국공업화학회 2011 공업화학 Vol.22 No.4

백금이 코팅된 메탈 필터 소재의 NOx, soot 산화반응의 안정성 및 활성에 대하여 연구하였다. NOx와 soot 산화실험은 독립 또는 동시에 반응시킨 조건으로 수행되었다. 그 결과, 백금이 코팅된 소재는 20%의 NO의 NO2로의 전환반응, 약 10%의 NOx 분해반응 그리고 soot의 완전산화반응이 진행됨을 보였다. Soot 산화반응은 NO2의 생성으로 인하여 반응온도가 더 저온으로(약 30 ℃) 이동할 수 있었다. 코팅 소재는 Pt/Al2O3 또는 Pt/TiO2 촉매보다 표면구조의 안정성 으로 인하여 열충격에 대한 내구성이 우수하였다. The activity and stability of the metal filter material Pt coated on NOx and soot oxidation were examined. The catalytic reaction test for NOx and soot were also performed independently and simultaneously. As a result, it showed the NO to NO2 shift reaction with 20% conversion, NOx decomposition (about 10%) and perfect soot oxidation on the material Pt coated proceeded. Onset temperature of soot oxidation shift to lower temperature (about 30 ℃) by generated NO2. The material also was less affected by thermal shock than Pt/Al2O3 or Pt/TiO2 catalysts due to its stability of surface structure.

OoA (Out-of-Autoclave) 프리프레그를 이용한 항공기용 복합재 일체형 부품 제작 및 평가

홍성진 ( Sungjin Hong ),송민환 ( Min-hwan Song ),송근일 ( Keunil Song ),백상문 ( Sang-moon Baik ),신상준 ( Sang-jun Shin ) 한국복합재료학회 2016 Composites research Vol.29 No.5

일반적으로 항공기 복합재 구조물은 고압의 오토클레이브(Autoclave)를 이용하여 제작하고 있으나 제작가능한 크기가 제한적이고 고가라는 단점이 있다. 최근 전통적인 오토클레이브 공정을 대체하기 위해 Out-of-Autoclave(OoA) 공정에 대한 연구가 많이 이루어지고 있다. 최근에 개발된 OoA 프리프레그는 오븐에서 경화가 가능하기 때문에 장비 투자비와 경화 비용이 낮을 뿐만 아니라 오토클레이브 프리프레그와 유사한 품질을 나타내는 것으로 알려져 있다. 그러나 OoA 공정은 낮은 압력 때문에 복잡한 형상의 부품을 결함없이 제작하기는 매우 어렵다. 본 연구에서는 최신 OoA 프리프레그를 이용하여 Skin-Spar-Rib 일체형 복합재 부품을 제작하고 단면 관찰 결과를 통해 기존 오토클레이브 공정의 대체 가능성을 판단하고자 한다. Conventionally, composite aircraft structures are fabricated within autoclave at high pressure. However, autoclave process has several disadvantages including high curing costs and limitation of part size. Recently, out-ofautoclave (OoA) processes have been investigated in many studies to replace conventional autoclave process. A newly developed OoA prepreg, using conventional ovens, can significantly reduce the curing costs and produce autoclavequality parts. Nevertheless, manufacture of void-free complex shape structure using OoA process presents significant challenges because of the low consolidation pressure. In this study, integrated skin-spar-rib composite part was fabricated using OoA prepreg. And cross-sectional macro- and micro-graphs of the part were examined in order to assess the possibility of replacing conventional autoclave process.

다공성 촉매 분리막을 이용한 수증기 개질 반응 특성 연구

홍성창 ( Sung Chang Hong ),이상문 ( Sang Moon Lee ) 한국공업화학회 2014 공업화학 Vol.25 No.2

본 연구에서는 Ni metal foam 플레이트의 수증기 개질반응 및 표면 특성을 조사하였다. 전처리를 통하여 Ni의 산화상태를 변화시킬 수 있었으며, 활성 site로서 표면에 노출된 metallic Ni 종은 수증기 개질 반응활성에 중요한 역할을 한다. 또한 Ni metal foam 플레이트의 기공제어 및 촉매 기능을 부여하기 위하여 Ni metal foam 플레이트와 Ni-YSZ 촉매를 혼합하여 다공성 촉매 분리막을 제조하였다. SEM 분석 결과 metal foam 플레이트의 기공을 제어할 수 있었으며, 표면에 Ni-YSZ 촉매는 고르게 잘 분포되어 있었다. Ni 기반 다공성 촉매 분리막은 공간속도에 상관없이 상용촉매와 유사한 수증기 개질 활성을 가진다. In this study, steam reforming reaction and surface characteristics of Ni metal foam plate were investigated. Valence state of Ni could be changed by pretreatment, and metallic Ni species exposed on surface as a active site play important role in steam reforming reaction. Porous catalytic membrane also was prepared by mixing of Ni metal foam plate and Ni-YSZ catalyst to control the pore size and assign the catalytic function in Ni metal foam plate. In SEM analysis results, Pore size of Ni metal foam plate could be controlled and Ni-YSZ catalyst well dispersed on surface. Ni based porous catalytic membrane had a similar steam reforming activity regardless of space velocity.