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Dehydrochlorination of Plyvinylchloride on the Al-containing Gaphitic-C<sub>3</sub>N<sub>4</sub>
( Song Yi Bae ),( Sung Ho Jyun ),( Dong Hyun Lee ),( Hyeong San Kye ),( Jong Wook Bae ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
Polyvinylchloride(PVC) is one of the general-purpose polymers with a lower production cost and it also has an excellent processing characteristics to be properly utilized in the products such as the building timbers and household goods through calendaring and extrusion processes. The lower thermal stability of the waste PVC can generate chlorinated products through the unzipping degradation mechanisms, which can cause severe corrosion problems of equipments during the incineration process. One of the possible chemical recycling routes of the waste PVC is the dehydrochlorination reaction using an environmentally benign solvent. In the present study, graphitic carbon nitrides (g-C<sub>3</sub>N<sub>4</sub>) having abundant Lewis acid sites were prepared by melem-based synthesis method and they were further modified with alumina during the preparation step to verify the activity of dehydrochlorination of waste PVC. The metal-free Al-modified g-C<sub>3</sub>N<sub>4</sub> was found to be stable during dehydrochlorination reaction in the PEG400 medium, and the activity of PVC degradation on the Al-modified g-C<sub>3</sub>N<sub>4</sub> was found to be higher on the 10wt%Al-modifed g-C<sub>3</sub>N<sub>4</sub> due to the proper amount of acid sites by producing HCl selectively.
한ㆍ일 종합병원의 부문별 기능의 변천에 관한 비교 연구
배송이(Bae, Song-Yi),니시데 카즈히코(Nishide, Kazuhiko) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.12
The subjects of this study are the general hospitals which have been built at an intervals of last 30~40years in Korea and Japan. In this study, to analyze the changes of the hospital"s function, the ward is classified into room zone, patient zone, staff zone, machanical zone and EV core. On the other hand, the O.P.D and T&D are classified into examination & treatment function, medical examination function, ward function, supply function and administration function. As a result, it is found that the increase of area per bed in the room zone is the most significant. The area of O.P.D built after 2000 in Korea is twice as large compared to the general hospitals in Japan built at the same period. At the point of the functions, area of examination & treatment in Korea general hospital is almost 4 times larger than the general hospital in Japan. In D&T, the area per bed of the examination & treatment function is increasing possibly as a result of the development of medical technology.
한ㆍ일 종합병원의 부문별 면적 배분 경향에 관한 비교연구
배송이(Bae Song-Yi),니시데 카즈히코(Nishide Kazuhiko) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.6
This study compared the area distribution and construction type of the general hospitals in Korea and Japan which were developed under the similar environmental condition. The subjects of this study are the general hospitals built after year 2000, with over 500 beds. This study analyzed the areas of the ward, Outpatient Department(O.P.D), Treatment and Diagnosis(T&D), Logistics, Administration as well as Sharing Department which is receiving more and more attention in Japan. As a result, ward is found to be the most noticeable department compared to the in both countries. In Korea, the area per bed of ward in the general hospitals is smaller than Japan. According to the previous studies, the space formation of O.P.D and T&D of Korea general hospitals built after year 2000 is mostly vertical type. However, the result of this study shows that the vertical type only appears in Korea general hospitals while horizontal type space formation is commonly observed in Japan general hospitals.
Jinjoo Bae,Young-Yi Lee,Sun-Yi Lee,Jae-Young Song,Bong-Nam Chung,Jung-Ro Lee,Munsup Yoon,Jung-Yoon Yi,Haeng-Hoon Kim 한국원예학회 2021 한국원예학회 학술발표요지 Vol.2021 No.10
Strawberry (Fragaria × ananassa Duch.) is one of the most important crops in many countries because of its taste and nutrients. Several reports raised the concerns of somaclonal variations by tissue cultures which is the major propagation methods for strawberry productions. In order to prevent the issue, studies suggested using low concentrations of cytokinins and a reduced number of subcultures during in vitro propagation. For a long term preservation of genetic resources, cryopreservation technique has been developed on strawberry germplasm and mainly used in vitro grown shoot tips. In this study, genetic and morphological stability of six strawberry accessions such as ‘Pink paend’, ‘Gorella’, ‘NY1406’, ‘Merrimack’, ‘Tangi’ and ‘Tufts’ were tested under treatment conditions, 1) conventional propagation (Control), 2) In vitro propagation (tissue culture, TC), 3) non-liquid nitrogen treatment (pre-treatment before cryopreservation, LNC), and 4) cryopreservation (liquid nitrogen treatment, LN). To examine genetic stability, 15 inter simple sequence repeat (ISSR) primers were used. 12 out of 15 primer sets were selected based on their reproducibility of band patterns. A total of 102 bands were generated and no polymorphism were found among four treatments and three replications within an accession except one cultivar. A few polymorphic bands were found in only tissue cultured plants (TC) of “Tufts”. To test morphological variations, rooted plants under in vitro grown, were planted in greenhouse after acclimatization. We measured vegetative traits including plant length, leaf length, leaf width, petiole length and number of runners. There are no significant differences in these traits among treatments within an accession. This study demonstrates that the cryopreserved plants of the six strawberry accessions are genetically and morphologically stable.
배진주(Jinjoo Bae),이선이(Sun-Yi Lee),송재영(Jae-Young Song),이정로(Jung-Ro Lee),윤문섭(Munsup Yoon),이정윤(Jung-Yoon Yi),김행훈(Haeng-Hoon Kim),이영이(Young-Yi Lee) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6
Cryopreservation method using a droplet vitrification was applied to the thirty-one strawberry accessions of in vitro grown shoot tips. A protocol with 0.3 - 0.5 M preculture followed by C4 loading and B1 dehydration solutions efficiently implemented cryopreservation of twenty-six strawberry accessions. The highest regrowth rate was 85.8% for PHS0007 and others were ranged between 85.8% and 21.0%. A slightly modified protocol was applied to five accessions. With these two protocols, twenty-eight accessions obtained more than 40% regrowth rate. This study showed that the droplet vitrification method was able to practically implement cryopreservation of in vitro grown shoot tips of broad range of strawberry germplasm (105).