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박일용,백민수,손종규,최수,정상진 대한건축학회 1999 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.19 No.2
The purpose of this study is to offer foundmental information of fly ash concrete for field application. Through before study of fly concrete, various properties were checked. but when fly ash was added In concrete, entrained air quantity was decreased as fly ash substitution is increased in fresh concrete. so entrained air(below AE) quantity arid a kind of AE according to fly ash substitution was tested basic properties. Also water-reducing efficiency was tested. And hydration heat according to fly ash substitution was tested by KR-100. As result of test, according to fly ash substitution increase, entrained air quantity is increase for target entrained air quantity, water-reducing efficiency and hydration heat are positive.
朴逸勇 弘益大學校 1993 弘大論叢 Vol.25 No.1
The style of <You,Choong-ryul cheon> (유충렬전) seems verse as lyric Kasa(가사). The most part of it is consisted of the parallel verse which has the phrase consisted of 4 and 4 syllables. And Its narrator feels sympathy with the narrative world as the lyric-self. So it seems as Kasa or Pansory(판소리). This phenomeon is unique in the history of style. Perhaps such style was caused by Pansory, and the traditions of loudly reading. Perhaps the most of producer and readers <You, Choong-ryul cheon> are the audiences of Pansory. We can reason it with the fact that In contrast with audinary Heroic roman <You, Choong-ryul cheon> had published only in Jeon-Ju where Pansory had flourished.
박일용 弘益大學校 人文科學硏究所 1994 人文科學 Vol.1 No.-
AbstractMost text of Chang, Kyung-cheon(장경전) has the structure of Chang, poong-woon cheon(장풍운전) type Heroic novel's structure in which the Hero fantasticall)· upgrade his class status. But in the text of Chang Kyung goon which Park Soon-ho has the structure was especially changed It seems like Yu, choong-ryul cheon(유충렬) type heroic novel's structure. In that text the hero and his familly is high class. And the Hero behaviour as he has the heroic power And he struggle with his antagonist bravely. With this Phenomenon we can reason chang, Poong-woon cheon TyPe Heroic novel had Produced before Yu, Choong-ryul cheon type Heroic novel.
MH(Maleic hydrazide)처리가 포도 부초 생장억제 및 품질에 미치는 영향
박일용,김기철,황용수,이재창 충남대학교 농업과학연구소 2002 농업과학연구 Vol.29 No.1
Spray of maleic hydrazide (MH) was confirmed to be highly effective on the inhibition of lateral shoot growth regardless of grape cultivars and application concentration examined in his experiment. The optimal spray times were 30 days after full bloom in 'Kyoho' and 35 days in 'Campbell Early'. However, the optimum season of application should be adjusted depending on the vine vigor. The apical buds of lateral shoot was significantly affected at the concentration of 3,900 ㎎·L^-1 resulting in the death and/or abscission. Thus the optimal concentration of MH seemed to be 1,950 ㎎·L^-1. The inhibition effect by MH application was derived from the decrease of node number and length. No adverse effect on fruit quality was found by MH application. In contrast, there was a tendency of anthocyanin increase in 'Campbell Early' grapes. Results indicated that MH could be an effective agent to reduce the labor charge through the inhibition of later shoot growth.
수출 전 저장기간과 모의 수출에 따른 '후지' 사과의 상품성 변화
박일용,이재창,황용수 충남대학교 농업과학연구소 2002 농업과학연구 Vol.29 No.1
관행적인 수확기인 11월 6일에 수확한 '후지' 사과는 80% 이상이 밀증상을 나타내었으나 에틸렌 발생량을 기준으로 볼 때 climacteric stage에 도달하지는 않았다. 모의 수출 전 2개월 저장기간 중 밀증상은 점차 감소하였다. 저장기간 중 가용성 고형물 수준은 일정하지 않았으나 경도와 생체중 감소가 저장기간일 길수록 증가하였다. 저장기간에 따라 모의 수출과 소매과정을 경과시킨 과실의 품질은 전반적으로 낮아졌지만 무처리에 비하여 30 um 플라스틱 필름 포장, 에틸렌제거제 처리는 전반적으로 과실의 품질을 소매단계까지 우수하게 유지시키는 결과를 보였다. 반면에 왁스처리는 외관품질을 우수하게 유지시켰지만 갈변장해를 일으켜 바람직하지 않았다. 따라서 수출용 과실은 건조한 환경에서 장기간 수송되고 판매되므로 품질저하가 심하여 이를 방지하기 위해서는 플라스틱 필름과 같은 moisture barrier 및 에틸렌 제거환경으로 선적하는 것이 바람직할 것으로 판단된다. The percentage of watercore occurrence harvested on Nov. 6 (commercial harvest season) was over 80% but fruits seemed not to reach climacteric stage on the basis of ethylene evolution. The occurrence ratio and severity of watercore gradually decreased with the increase of preshipment storage for 2 months. The level of soluble solids did not show a clear tendency during preshipment storage but flesh firmness, fresh weight, and acidity gradually decreased. Although the overall quality of fruit reduced along with the increase of preshipment storage duration after exposure to retail condition at ambient temperature for 1 week, plastic film wrapping (PE 30 um) as well as plastic film wrapping plus ethylene scrubbing had a benefit on keeping freshness of fruit even after retail condition. Waxed fruit showed excellent appearance but browning disorder was developed. Results indicated that moisture barrier such as plastic film wrapping and ethylene removal have a great potential on keeping freshness of fruit during export which required long-term transport under low humidity environment.