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o-Chlorobenzylidenemalononitrile의 가수분해 및 분석에 관한 연구
박성우,김남이,김동환,홍성욱,성낙도,김일광,오인교,Park, Sung-Woo,Kim, Nam-Yee,Kim, Dong-Hwan,Hong, Sung-Work,Sung, Nack-Do,Kim, Il-Kwang,Oh, In-Kio 한국분석과학회 1992 분석과학 Vol.5 No.4
o-Chlorobenzylidenemalononitrile(CS), chloroacetophenone 및 bromophenylacetonitrile의 이성질체와 같은 최루 자극성 물질들의 가수분해, 산화, 환원, 열분해 및 대사에 의한 화합물의 분석은 법과학적 측면에서 주요한 의미가 있다. 본 실험에서는 10% MeOH-$H_2O$ 및 10% dioxane-$H_2O$ 용액에서 pH 1.0~11.0과 온도 변화에 따른 CS의 가수분해 조건을 검토하고 가수분해 생성물이 o-chlorobenzaldehyde와 malononitrile임을 분광학적 방법 및 전기화학적 방법에 의해 확인하였다. The analysis, hydrolysis mechanism, oxidation, reduction, thermal decomposition and metabolism of irritant materials such as chloroacetophenone isomers, bromophenylacetonitrile isomers, o-chlorobenzylidenemalononitrile(CS), and ethylisothiocyanate, etc. are interested in forensic science. We had studied hydrolysis of CS in 10% MeOH-$H_2O$ and 10% dioxane-$H_2O$ at pH 1.0~11.0 and various temperatures. As a result, we identified o-chlorobenzaldehyde and malononitrile that were formed by hydrolysis of CS by using gas chromatography/mass spectrometry, UV/Vis spectrometry, and polarographic method.
경피적 신동맥 혈관 성형술로 치료한 신혈관 고혈압증 1례
박성우,정수호,전용선,전용훈,홍영진,이지은,Park, Sung-Woo,Jeong, Su-Ho,Jeong, Young-Sun,Jun, Yong-Hoon,Hong, Young-Jin,Lee, Ji-Eun 대한소아신장학회 2008 Childhood kidney diseases Vol.12 No.1
신성 고혈압은 소아기 이차성 고혈압의 흔한 원인이며, 그 중 신동맥 협착에 의한 신혈관성 고혈압은 치료 가능한 고혈압의 가장 흔한 원인이다. 신혈관성 고혈압 치료로 최근 경피적 신동맥 혈관 성형술은 비침습적인 방법으로 각광 받고 있다. 저자들은 작은 직경을 가진 신동맥 분지 혈관 협착에 의한 신혈관성 고혈압 소아에서 관상동맥용으로 쓰이는 풍선 카테터를 이용하여 경피적 신동맥혈관 성형술을 성공적으로 시행한 경험을 하였으므로 보고하는 바이다. Renovascular hypertension results from a lesion that impairs blood flow to a part of or all, of one or both kidneys. Renal artery stenosis is the major cause of renovascular hypertension and the most common cause of treatable secondary hypertension. Recently, percutaneous transluminal renal angioplasty(PTRA) with or without stent placement, has become the preferred choice for correcting symptomatic renal artery stenosis since it is less invasive than surgical reconstruction. PTRA with balloons designed for the dilatation for the dilatation of the coronary artery can be tried in small sized renal artery stenosis. We report a case of renovascular hypertension in a 13-year-old male who had small sized renal artery stenosis. Hypertension was controlled by PTRA with balloon dilatation.
토양세정 기술을 활용한 윤활유와 아연 복합오염 철도토양의 정화 연구
박성우,조정민,이재영,박준규,백기태,Park, Sung-Woo,Cho, Jung-Min,Lee, Jae-Young,Park, Joon-Kyu,Baek, Ki-Tae 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.4
The feasibility study of soil flushing was investigated to remediate lubricant oil and zinc contaminated railway soil. In this study, mixed washing agents of surfactant and inorganic acid/base were used for the simultaneous removal. The mixed washing agent of non-ionic surfactant and HCl removed 15% of the lubricant oil and 40% of zinc, respectively. Alkaline-enhanced soil washing process increased the removal of lubricant oil up to 40%. This is because alkaline solution reduced the interfacial tension between water phase and lubricant oil phase due to the soap formation reaction. To simulate in-situ soil flushing for the remediation of railroad-related contamination, two dimensional soil flushing was carried out based on the results of batch soil washing. In the soil flushing, the removal efficiencies of lubricant oil and zinc were 34% and 16%, respectively. Even though the removal efficiency was low, the mixed washing agent can remove metal and lubricant oil simultaneously.
글루칸 투여에 의한 한국산 메기(Silurus asotus)의 Edwardsiella ictaluri와 Aeromonas hydrophila감염증에 대한 저항성의 증가
박성우,김영길,Park, Sung-Woo,Kim, Young-Gill 한국어병학회 1996 한국어병학회지 Vol.9 No.1
$\beta$-glucan의 투여가 세균감염증에 대한 저항성에 미치는 영향을 알아보기 위하여 복강주사 또는 침지에 의해 한국산 메기(Silurus asotus)에 투여하였다. 투여 농도는 어체중 100 g 당 200, 500, $1000{\mu}g$을 1회 또는 3일 간격으로 2회 복강주사하거나, $100{\mu}g$/ml의 $\beta$-glucan 부유액에 30분 또는 1시간 침지시켰다. $\beta$-glucan 투여 3일후에 Edwardsiella ictaluri와 Aeromonas hydrophila의 생균액($2{\times}106$ CFU/0.1 ml)을 복강주사한 다음 10일간 사육하면서 생존율을 조사하였다. 복강주사와 침지에 의한 투여결과 복장투여만이 생잔율을 높일 수 있었으며, 투여 농도에 있어 어체중 100 g당 $200\sim1000{\mu}g$의 범위에 있어서는 농도간에 차이가 없었다. 또한 투여회수는 1회 투여보다는 3일간격으로 2회 투여가 효과적이었으며, E. ictaluri보다는 A. hydrophila에 대한 저항성이 높은 것으로 나타나, 한국산 메기에 $\beta$-glucan을 복강투여함으로서 세균감염증의 초기단계에 있어 생잔율을 높일 수 있었다. The effect of $\beta$-glucan administration on the resistance of Korean catfish(Silurus asotus) to experimental Edwardsiella ictaluri and Aeromonas hydrophila infection was evaluated. Fish were either intraperitoneally received $\beta$-glucan($200\sim1000{\mu}g$/100g body weight) dissolved in physiological saline once or twice at an intervals of 3 days, or placed in $\beta$-glucan bath($100{\mu}g/m\ell$) prepared with filtered tap water for 30 or 60 min. Bacterial challenge was performed by intraperitoneal injection of 0.1 ml of bacteria suspension($2{\times}10^7 CFU/m\ell$) 3 days after $\beta$-glucan administration. The $\beta$-glucan injected fish showed an significantly enhanced resistance against experimental infections. The resistance was much higher in the twice-injected fish than in the once-injected fish. But glucan bath did not affect survival rate after the challenge. The protective effect in the $\beta$-glucan injected fish was higher to A. hydrophila than to E. ictaluri. These results indicate that $\beta$-glucan injection can increase the resistance of Korean catfish against experimental E. ictaluri and A. hydrophila infection and that twice injection of $\beta$-glucan at an 3 day-intervals is more effective to the resistance.
우울증과 항우울작용에 관한 p11(S100A10)의 역할
박성우,서미경,이정구,김영훈,Park, Sung Woo,Seo, Mi Kyong,Lee, Jung Goo,Kim, Young Hoon 대한생물정신의학회 2016 생물정신의학 Vol.23 No.1
p11 protein (S100A10) is downregulated in depressive-like states of human and rodent. Antidepressant drug treatment increases p11 levels in rodent models. We reviewed studies demonstrating that p11 levels are regulated in depression and by antidepressant treatment and that p11 upregulation exerts antidepressant effects. Current studies on p11 underscore the importance of p11 as a potential antidepressant target.
빅데이터 분석을 통한 코로나 이전과 이후 메타버스에 대한 소비자의 인식에 관한 연구
박성우,박준호,류기환,Park, Sung-Woo,Park, Jun-Ho,Ryu, Ki-Hwan 국제문화기술진흥원 2022 The Journal of the Convergence on Culture Technolo Vol.8 No.6
The purpose of this study is to find out consumers' perceptions of "metaverse," a newly spotlighted technology, through big data analysis as a non-face-to-face society continues after the outbreak of COVID-19. This study conducted a big data analysis using text mining to analyze consumers' perceptions of metaverse before and after COVID-19. The top 30 keywords were extracted through word purification, and visualization was performed through network analysis and concor analysis between each keyword based on this. As a result of the analysis, it was confirmed that the non-face-to-face society continued and metaverse emerged as a trend. Previously, metaverse was focused on textual data such as SNS as a part of life logging, but after that, it began to pay attention to virtual reality space, creating many platforms and expanding industries. The limitation of this study is that since data was collected through the search frequency of portal sites, anonymity was guaranteed, so demographic characteristics were not reflected when data was collected.
박성우,신민철,전칠성,백기태,이재영,Park, Sung-Woo,Shin, Min-Chul,Jeon, Chil-Sung,Baek, Ki-Tae,Lee, Jae-Young 한국지하수토양환경학회 2008 지하수토양환경 Vol.13 No.2
본 연구에서는 철도 윤활유 유래 오염토양을 정화하기 위해 토양세척방법, 화학적 산화법, 초음파 추출법의 타당성을 연구하였다. 세척제로는 tergitol이 사용되었으며, 세척실험은 보조용매인 iso-propyl alcohol을 사용하여 진행되었다. Tergitol이 디젤오염토양의 세척에는 효과적인 것으로 알려져 있으나, 윤활유 오염토양의 세척에는 효과적이지 못했다. iso-propyl alcohol을 보조용매로 사용한 경우 계면활성제의 토양 흡착을 증가시켜 오히려 세척효율이 감소하였다. 화학적 산화방법은 윤활유의 약 30% 정도만 제거할 수 있었다. 화학적 산화처리후 계면활성제에 의한 토양세척을 통해 약 16-17%의 추가적인 윤활유의 세척효과를 얻을 수 있었다. 초음파는 토양세척의 효과를 증가시키는 것으로 나타났다. 따라서 TPH 오염 철도 토양의 오염원에 따라 다른 방법을 적용하야 한다. In this study, the feasibility of soil washing, chemical oxidation and sonication was investigated to treat lubricantcontaminated railroad soil. Tergitol, a non-ionic surfactant, was used as a washing agent with or without iso-propyl acohol as a cosolvent. However, it was not effective to remove lubricant from soil even though tergitol was the most effective washing agent for diesel-contaminated soil. The cosolvent reduced the overall washing efficiency. Chemical oxidation removed 30% of lubricant from contaminated soil. Soil washing after chemical oxidation extracted additionally 16-17% of lubricant. Sonication enhanced-soil washing showed enhanced overall efficiency of soil washing. Lubricant-contaminated soil should be remediated by the other technology used for diesel-contaminated soil.