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유승민 ( Seung Min Ryu ),유승열 ( Seung Ryul Yoo ),박준석 ( Jun Seuk Park ),홍은정 ( Eun Jung Hong ),노태협 ( Tai Hyeop Lho ) 한국물환경학회 2013 한국물환경학회지 Vol.29 No.5
Chloroform is harmful volatile organics and representatives of Trihalomethane (THM). Well-known removal methods of Chloroform are photo oxidation or OH radical oxidation. Plasma on water surface at slightly vacuum condition (45 torr) can produce OH radical and it will help chloroform removal. 81.5% of chloroform is removed by vacuum and plasma in 10 min. Plasma can totally oxidize it till 2.8% and partially oxidize chloroform up to 18.5%. Water-surface plasma is good method to remove chloroform in short time.
Min Hyeop Park,Miyeon Choi,Yong-Seok Kim,Hyeon Son 대한생리학회-대한약리학회 2018 The Korean Journal of Physiology & Pharmacology Vol.22 No.2
3-(2-Carboxypiperazin-4-yl)propyl-1-phosphonic acid (CPP), a competitive N-methyl-D-aspartate (NMDA) receptor antagonist, produces rapid antidepressant-like effects in animal models of depression. However, the molecular mechanisms underlying these behavioral actions remain unknown. Here, we demonstrate that CPP rapidly stimulates histone deacetylase (HDAC) 5 phosphorylation and nuclear export in rat hippocampal neurons. These effects are accompanied by calcium/calmodulin kinase II (CaMKII) and protein kinase D (PKD) phosphorylation. Behavioral experiments revealed that viral-mediated hippocampal knockdown of HDAC5 blocked the antidepressant effects of CPP in stressed animals. Taken together, our results imply that CPP acts via HDAC5 and suggest that HDAC5 is a common regulator contributing to the antidepressant actions of NMDA receptor antagonists such as CPP.
Park, Min Hyeop,Choi, Miyeon,Kim, Yong-Seok,Son, Hyeon The Korean Society of Pharmacology 2018 The Korean Journal of Physiology & Pharmacology Vol.22 No.2
3-(2-Carboxypiperazin-4-yl)propyl-1-phosphonic acid (CPP), a competitive N-methyl-D-aspartate (NMDA) receptor antagonist, produces rapid antidepressant-like effects in animal models of depression. However, the molecular mechanisms underlying these behavioral actions remain unknown. Here, we demonstrate that CPP rapidly stimulates histone deacetylase (HDAC) 5 phosphorylation and nuclear export in rat hippocampal neurons. These effects are accompanied by calcium/calmodulin kinase II (CaMKII) and protein kinase D (PKD) phosphorylation. Behavioral experiments revealed that viral-mediated hippocampal knockdown of HDAC5 blocked the antidepressant effects of CPP in stressed animals. Taken together, our results imply that CPP acts via HDAC5 and suggest that HDAC5 is a common regulator contributing to the antidepressant actions of NMDA receptor antagonists such as CPP.
박근규(Keun Kyu Park),장용석(Yong Seok Jang),이홍석(Hong Seok Lee),송홍석(Hong Suk Song),박승국(Soong Kook Park),안준협(Jun Hyeop An),류수형(Soo Hyung Ryu),윤상명(Sang Myung Yun),박삼석(Sam Suk Park),이민기(Min Ki Lee),박순규(Soon Ke 대한내과학회 2000 대한내과학회지 Vol.59 No.4
Malignant fibrous histiocytoma(MFH) is a high grade soft tissue sarcoma, commonly occur in the retroperitoneum, extremities, head and neck in the patient with old ages. But it is very uncommon that MFH primarily occurs in the lung, and uncommon in young ages. We experienced a young male patient with primary MFH of the lung. The patient had huge masses on both lungs which were diagnosed as MFH by thoracoscopy-guided wedge resection of mass, so we could not perform operative management. And we tried 6 cycles of chemotherapy using ifosfamide, doxorubicin, dacarbazine. After chemotherapy, masses still remained in spite of decreasing sizes.(Korean J Med 59:452-456, 2000)
노인교육이 삶의 만족도에 미치는 영향에서 인구통계 변인의 조절효과
박민경(Min-Kyung Park),한승협(Sung-Hyeop Han) 대구과학대학교 국방안보연구소 2020 사회융합연구 Vol.4 No.4
본 연구는 2017년 노인실태조사 자료의 설문대상인 노인 10,299명을 대상으로 노인평생교육, 죽음준비교육, 성교육 및 상담이 노인의 삶의 만족도에 긍정적인 효과가 있는지 검증하고 이 교육이 효과적인 인구통계집단을 규명하기 위해 인구통계 변인을 조절변수로 설정하여 단계적 위계적 회귀분석을 실시하였다. 분석 결과는 다음과 같다. 첫째, 평생교육은 노인의 삶의 만족도에 긍정적 효과가 있었고, 건강상태와 경제활동여부에서 부(-)의 조절효과가 있었다. 둘째, 죽음준비교육은 노인의 삶의 만족도에 긍정적인 효과가 있었다. 또 조절효과를 검증한 결과 성별, 학력, 그리고 경제활동여부에서 부(-)의 조절효과가 있었다. 셋째, 성교육 및 상담은 노인의 삶의 만족도에 긍정적인 효과가 있었다. 또 조절효과를 검증한 결과 성별과 건강상태에서 부(-)의 유의적인 조절효과가 있었다. 즉, 전반적으로 평생교육, 죽음준비교육, 그리고 성교육 및 상담은 노인의 삶의 만족도에 긍정적 효과가 있었고, 취약계층일수록 그 효과가 크게 나타났다. This study examined a survey of living conditions and welfare needs of 10.299 Korean senior citizens to investigate whether lifelong education, death preparation education, sex education, and counseling are positive for the satisfaction of the lives of the elderly and a hierarchical regression analysis was conducted to elucidate an effective demographic group by selecting demographic variation as moderating variables. The analysis results are as follows. First, lifelong education had a positive effect on the satisfaction of the lives of the elderly, and had a regulatory effect on their health conditions and economic activities. Second, death preparation education had a positive effect on the satisfaction of the lives of the elderly. As a result of verifying the adjustment effect, there was a regulatory effect on sex, education, and economic activities. Third, sex education and counseling had a positive effect on the satisfaction of the lives of the elderly. The result of the verification of the adjustment effect showed that there was a significant regulatory effect on sex and health condition. In conclusion, lifelong education, death preparation education, sex education, and counseling demonstrated a positive effect on the satisfaction of the lives of the elderly overall, and the more socially underprivileged the senior citizens were, the larger the positive effect of these four variable were.
이협건 ( Hyeop-geon Lee ),이경화 ( Kyoung-hwa Lee ),박민수 ( Min-su Park ),신용태 ( Yong-tae Shin ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.1
최근 큰 관심을 모으고 있는 스마트 그리드는 그린 에너지 환경 구현을 위한 기반 기술로 에너지 효율을 최적화하고자 하는 차세대 전략망이다. 스마트 그리드의 다양한 활용 가능성에도 불구하고 구조적 특징과 상호 운용성 표준의 부재로 인해 신뢰적인 인증을 보장하지 못한다. 이로 인해 네트워크의 신뢰성을 약화시키는 요인으로 작용하며, 많은 보안상의 문제를 야기한다. 따라서, 신뢰적인 클라우드 기반 스마트 그리드 환경을 구현하기 위하여 표준 및 정책 제정과 안전한 데이터 통신을 위한 보안 메커니즘 개발 및 인증 기술 개발이 필요하다. 본 논문에서는 클라우드 기반 스마트 그리드와 표준화 동향 및 클라우드 기반 스마트 그리드 환경에서의 보안기술을 살펴보고 이를 해결하기 위한 대안을 제시함을 목표로 한다.
강민선 ( Min Sun Kang ),장경수 ( Kyoung Soo Jang ),손영모 ( Young Mo Son ),김래현 ( Rae Hyun Kim ),박인협 ( In Hyeop Park ),이계한 ( Kye Han Lee ) 한국임학회 2016 한국산림과학회지 Vol.105 No.4
백합나무(Liriodendron tulipifera L.)의 자원량 파악 및 바이오매스 통계자료 구축을 위해 줄기밀도, 바이오매스 확장계수, 뿌리함량비를 구하였으며, 흉고직경과 수고를 이용한 상대생장식을 개발하였다. 이를 위해 지역과 경급을 고려하여 총 40본의 표본목을 벌채하였고 21본은 뿌리까지 굴취 하였다. 본 연구 결과에 의하면 백합나무의 줄기밀도는 0.43 g·cm<sup>-3</sup>, 바이오매스 확장계수는 1.2, 뿌리함량비는 0.2이며, 각각의 불확실성은 3.9%, 4.6%, 24.1% 이었다. 백합나무 지상부 상대생장식은 W=0.060D<sup>2.524</sup>이었고, 전체 바이오매스 및 지하부 상대생장식은 각각 W=0.063D<sup>2.578</sup>, W=0.010D<sup>2.591</sup>이었다. The purpose of this study was to develop allometric equations for identifying the amount of wood and building biomass statistics of L. tulipifera by density, biomass expansion factors and root ratio. For this purpose, total of 40 trees were sampled, which were used consideration the area and the DBH class. As a results, the wood density was 0.43 g·cm<sup>-3</sup>, biomass expansion factors were 1.2, root ratio was 0.2 and uncertainty were 3.9%, 4.6%, 24.1%, respectively. Allometric equations for above ground of L. tulipifera trees were W=0.060D<sup>2.524</sup>. Total and underground allometric equations were W=0.063D<sup>2.578</sup>, W=0.010D<sup>2.591</sup>, respectively.
옥상 설치형 solar tower 의 설계 및 성능 분석 연구
김동협(Dong Hyeop Kim),김영민(Yeong Min Kim),임소혁(So Hyeok Lim),채지환 (Ji Hwan Chae),박중열(Joong Yull Park) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Various methods to cope with climate change and environmental problems have gaining attention. Solar tower is one of promising regenerative power generation methods. The purpose of this study is to propose a novel idea for designing and installing an AT (appropriate technology)-based solar tower on the roof of a building, and analyze its performance considering the special structural characteristics of the roof of the building, that is, the existence of a surrounding wall. The optimized inlet height and chimney diameter were obtained using CFD to achieve the maximum kinetic energy. Furthermore, the model optimized through CFD was implemented in an actual experiment to confirm the theoretical flow phenomenon. Through this study, the possibility of solar technology combined with the conventional rooftop geometry was proposed and the specific design direction of the solar tower was presented.