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신축공동주택에서 플러쉬아웃 실시에 따른 실내 VOCs 농도저감 효과에 관한 연구
박상인(Park, Sang-In),박준석(Park, Jun-Seok) 대한건축학회 2018 大韓建築學會論文集 : 構造系 Vol.34 No.12
The purpose of this study was to confirm the effects of flush-out on the reduction of Volatile Organic Compounds(VOCs) concentration in newly built residential buildings. The field measurements were conducted in two complexes of multi-residential buildings which are located suburban areas of Seoul. About three samples of residential buildings were selected in the field measurements. Two samples, B and C, had been flush-out with outdoor air more than seven days. The sample A was maintained at same condition during the flush-out because of the comparison. The indoor concentrations of VOCs in the three samples were measured at three times, before, during ,and after flush-out. From the field measurements, it was confirmed that two samples’ indoor VOCs’ concentrations were considerably decreased after the flush-out comapred with those of the sample A in which the flush-out was not conducted. The decreases of indoor VOCs concentrations were corresponding to about 50% ~ 92% of the concentrations of before. Through the reviews for the previous studies, it was also found that the reduction effects of the flush-out is similar with the those of the bake-out which were reported in the previous studies.
박상인 ( Sang In Park ) 한국응용경제학회 2013 응용경제 Vol.15 No.2
시장경제체제에서 사회통합이 달성되기 위해서는 우선 시장경제체제의 근간이되는 법제도가 잘 확립되어야 하고, 시장실패의 보정과 불공정거래행위 방지라는 정부의 역할도 필요하다. 현대 시장경제체제의 근간이 되는 법제도로 사유재산권, 법치주의, 주식회사제도 등을 꼽을 수 있는데, 재벌에 의한 경제력 집중은 이런 시장경제체제의 근간이 되는 법제도를 무력화시키고 있다. 재벌세습과 재벌에 의한 경제력 집중의 해소는 경제민주화의 핵심적 내용이므로, 재벌개혁과 경제민주화는 시장경제체제 정립의 선결요건이라고 할 수 있다. 그러나 시장경제체제의 확립만으로 사회통합이 달성될 수 있는 것은 아니다. 공정한 경쟁의 패자에게도 최소한의 인간다운 생활을 보장할 수 있는 사회적 장치가 마련되어야만 사회통합이 이뤄지는 시장경제체제라고 할 수 있다. 사회통합이 담보된 시장경제체제만이 지속가능하고 시민의 참여와 지지를 받을 수 있으므로, 사회통합은 시장경제체제의 공공재라고 파악할 수 있다. For a well-functioning modern market economy system, the fundamental economic law and institutions, such as the property right law, the principle of the rule of law and corporation system, should be established along with the appropriate role of the government in the areas of antitrust and market failures. However, the existence of economic power by Chaebol incapacitates these fundamental economic law and institutions in the process of illegal and expedient Chaebol succession. Hence Chaebol reform is the key element of economic democratization which is the prerequisite for the establishment of the market economy system. In addition, for the social integration in the market economy, the social safety net and the welfare system should be installed to make sure that everyone in the system can live as a respected human being. Social integration may be considered a public good which makes the system sustainable and supported by the members of the society.
박상인 ( Sang In Park ) 한국산업조직학회 2010 産業組織硏究 Vol.18 No.3
최근 사회과학 제 분야에서 다항선택모형이 광범위하게 사용되고 있다. 본 논문은 다항선택모형의 방법론적 발전을 모형의 식별가능성과 추정 문제를 중심으로 재정리하여 논의하고자 한다. 구체적으로 본 논문에서는 (i) 관측되지 않은 대안 특성에 의한 내생성 문제, (ii) 가용한 자료 수준에 따른 식별가능성과 추정 문제, 그리고 (iii) 확률효용(random utility) 함수의 비모수적 식별가능성과 추정 등의 세가지 이슈들에 논의의 초점을 둔다. Since the seminal work of McFadden, the multinomial choice models have been extensively employed in empirical research. This paper provides a survey of the recent developments triggered by Berry, Levinsohn and Pakes (1995) in the identification and estimation of the multinomial choice model. Specifically the paper focuses on: (i) the endogeniety issue caused by an unobservable product (or choice) characteristic; (ii) the identification and estimation issues when only consumer-level or only aggregate-level data are available; and (iii) the nonparametric identification and estimation of the random utility function.