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정동석(Jeong Dong-Sug),동정근(Dong Jeong-Keun) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(계획계)
This study proposes the desirable direction of urban planning strategy for revitalization of the existing commercial area. the direction is drawn through the analysis of present land use of the commercial area in Jung-gu, Dong-gu, Juan, and Guwol Center of City, the one of Three Cores presented in ‘The Comprehensive Urban Planning of Incheon, 2020’. Land categories, height of building, and floor area ratio(FAR) are used as data of the analysis. The first result of analysis shows that the Comprehensive urban planning of Incheon from 2001 to 2020 has modified by the short-term change of circumstances in step with urban development momentarily without long-term goal. Second, the use of FAR is too inefficient as the average FAR of the business area is more less than legal one. The last one, the average FAR and the frequency of high-rise building tends to increase in the order of location, Jung-gu, Dong-gu, Juan, and Guwol. The fact shows not only that the extensive expansion causes decentralization, but also that each district has such different regional and social peculiarities that it cannot be a group of center of city. Based on these results, we propose the direction of urban management planning like followings: the necessity of breaking away from stiffness of Euclidena Zoning, applying flexible urban planning for revitalization, and high-density mixed use development of the commercial area.
함상근,김홍,강영구,김동현,이영섭 한국산업안전학회 2002 한국안전학회지 Vol.17 No.1
The toxic gases released from a fire can be classified as asphyxiants such as carbon monoxide, and irritants such as hydrochloric acid, etc. It is recognized that the combustion characteristic of interior upholstery is one of the important factors to determine the severity of indoor fires. In this study, several of the mostly used interior upholsteries including wallpaper, veneer board, curtain and floor cover, were selected to be evaluated by using the method of NES 713. The toxicity indices of the experimental samples, which indicate their toxic potentials in a fire were lowered in the order of Wallpaper (Flame Retardant) 8.5 > Floor Cover(Hard) 4.8 > Polyurethane 4.3 > Floor Cover(Soft) 3.5 > PVC 2.8 > Veneer Board 2.3 > Floor Cover(flame retardant) 2.1 > Wallpaper(Promulgation) 1.4 > Curtain 0.9. It is concluded that, among all the tested upholsteries, wallpaper (flame retardant) would release the largest quantity of toxic gases in a fire.
全尙根,鄭東浚,張容碩 경희대학교 생명자원과학연구원 1997 硏究論文集 Vol.18 No.-
This study was carried out to investigate the Specific property for tree growth of 17-year-old progeny of Korean White Pine in Ka-pyung. The performance of the 8 general height-dbh models fitted to 1,664 height-dbh data compiled from Ⅰ, Ⅱ, Ⅲ volume classes of families using linear regression method, was compared in connection with several statistical test and growth principle of height. The results can be summarized as follows : 1. Average values were 8.9±1.0cm in diameter and 5.9±0.4cm in height all over the 25 families. 2. No. 20 Family showed excellent growth of 11.3cm in mean diameter, 6.8m in mean height and 78.8m^(3) in mean volume respectively, and No.5 Family showed the badest growth of 27.0m^(3) in mean volume. 3. When volume by the difference of volume ratio ±20% in families mean volume about total mean volume were classified(Ⅰ, Ⅱ, Ⅲ), average values of volume were 66.5±7.5m^(3) in upper volume class(Ⅰ), 46.3k 4.8m^(3) in middle volume class(Ⅱ) and 30.6±3.2m^(3) in lower volume class(Ⅲ) 4. By 8 general height-dbh curve model, in which individual tree height is estimated from the dbh of individual tree in 3 volume classes(Ⅰ, Ⅱ, Ⅲ), there is no height differences in statistical test such as mean difference(MD), standard deviation of difference(SDD), standard error of difference(SED), coefficient of determination(R^(2)), but Parabolic, Fresse, Log, Korson and Prodan functions were no fitted in with general growth principle of height. So height-dbh curve models of Petterson, Kennel and Michailow showed statistically performance and also coincided with general growth principles of height.
18年生 잣나무 次代檢定林의 樹高·直徑生長의 遺傳力 및 改良效果
전상근,정동준,장용석 경희대학교 자연과학종합연구원 1998 자연과학논문집 Vol.4 No.-
The objectives of this study were to analyzed to variation and to estimate heritabilities and genetic gains for height and diameter growth of 18-year-old open-pollinated progenies of Korean White Pine in three different sites. The results were summarized as follows; 1. Family, site, block, and interactions among these factors were significant source of variance for tree height and diameter growth. The effects of family × site interaction were relatively large as compared with other source of variance. 2. Average values were 6.5m in height and 10.5cm in diameter at Kapyung site, 6.2 m and 9.8cm at Kwangju site, 4.9m and 6.5cm at Youngdong site, and 6.0 m and 9.1cm overall these three sites, respectively. 3. Family of No. 20 showed excellent growth of 6.8m in mean height, 10.5cm in mean diameter overall sites. 4. Individual-tree and family heritabilities were estimated 0.12-0.22 and 0.65-0.80 for height growth, and 0.05-0.15 and 0.59-0.78 for diameter growth, respectively. For overall the sites, estimates of individual-tree heritabdity was 0.38 for height and 0.25 for diameter, and those of family were 0.89 for height and 0.82 for diameter. 5. Heritability estimates varied with testing site, and that for height were higher than for diameter. 6. Given equal intensity of selection (l0%), combined selection showed the most efficient genetic gains for height and diameter.
김동훈,김기권,장태정,김정란,이구,김수근,임현술 大韓法醫學會 2001 대한법의학회지 Vol.25 No.1
Oxygen deficiency has been frequent in a clouted space. Wood consumes oxygen and discharges carbon dioxide Instead of photosynthesis in closed space without light, so do some microorganisms on the surface. We experienced a case that a healthy Insect-proofer fell down and died of asphyxia on stair-board at 7 m below the hatch of the cargo-hold shipping wood Analysis of gases in cargo-hold revealed O2; 12.3%, CO; 105 ppm, CH4; 2.7%, and H2S; 1.9% at 1 m below the hatch, and then O2; 6.1%, CO; 220 ppm, CH4; 2.9%, and H2S, 2.3 ppm at 2.5 m below the hatch. Autopsy findings were unremarkable. We justiced the cause of death asphyxia due to oxygen deficiency. As seen in this case, the serious oxygen deficiency was accounted for oxygen consumption by wood and microorganisms.