• Title/Summary/Keyword: 사비

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한국에서 일하는 외국인 과학기술자 - KIST화공연구부 세르게이 사비노프박사

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.32 no.1 s.356
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    • pp.22-23
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    • 1999
  • 러시아에서 온 초청과학자 세르게이 사비노프박사는 "한국은 기초과학분야에서 아직 취약점이 많기 때문에 산업발전이 취약한 러시아와 상호 협력이 절실하다"고 말한다. KIST의 화공연구부에서 나병기박사팀과 천연가스 활용기술을 공동으로 연구하고 있는 사비노프박사는 천연가스 이용기술에 자신이 전공한 플라즈마 화학방법을 적용하여 연구를 계속하고 있다고 한다.

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The Change of Management Methods on Iksan and the rearrangement of Sabi by Baekje (백제의 익산 경영 방식의 전환과 사비(泗沘) 재정비)

  • KIM, Nakjung
    • Korean Journal of Heritage: History & Science
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    • v.54 no.2
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    • pp.170-193
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    • 2021
  • In this article, I examine the transformation of the Iksan Royal Palace into a temple. And it was considered to mean a change in the way Iksan was managed by Baekje. The Iksan Royal Palace was converted into a temple between the establishment of Mireuksa Temple and Stone Pagoda. As a result, the transfer of the capital to Iksan was not achieved, and Iksan was transformed into a temple-centered city. In connection with this, the need to re-establishment the urban system in Sabi was increased, as it suffered a great flood in the Muwang era. As a result, the scope of the royal palace was expanded, the secondary palace was built, and the urban district was expanded throughout the capital city. It is presumed that King Mu gave a divine nature to Iksan and discriminated against Sabi. Accordingly, it is believed that the King Mu or King Uija stopped developing the city in Iksan and focused on the rearrangement of Sabi.

Shelf Life Extension of Wasabi Paste Products by Addition of Citric Acid (구연산 첨가에 의한 와사비 페이스트 제품의 저장성 향상)

  • Jeong, Eun-Jeong;Lee, Hyo-Kyung;Kim, Yong-Suk
    • Journal of Food Hygiene and Safety
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    • v.34 no.4
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    • pp.354-360
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    • 2019
  • In order to extend the shelf life of Wasabi paste, the effects of citric acid were confirmed at $35^{\circ}C$ for 28 days. Citric acid-treated groups contained citric acid in amounts of 0.05, 0.10, 0.17, 0.30, and 0.40%, respectively. Quality characteristics of Wasabi pastes were determined in pH, titratable acidity, soluble solid content, color values, microbial analysis (aerobic bacteria, yeast), gas production, and content of allyl isothiocyanate. The pH and titratable acidities of Wasabi pastes added with citric acid were indicated as 4.03-5.19 and 4.23-4.82%, respectively. Soluble solid content was significantly different according to concentrations of citric acid. L values showed the highest at $50.05{\pm}0.46$. a and b values were increased during the storage period. Total aerobic bacteria and yeast counts of Wasabi pastes were decreased in a dose-dependent manner. Gas production from Wasabi pastes showed at 19.55-19.80 mL/tube after 28 days of storage. The addition of citric acid (0.3% or more) to the Wasabi paste resulted in increased storage stability.

Long-term Prediction of Dam Sedimentation Using Sluicing Efficiency Curve and Dam Operation Technique (배사비 효율곡선 및 댐 운영기법을 이용한 퇴사량 장기 예측)

  • Lee, Gwang-Man
    • Journal of Korea Water Resources Association
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    • v.31 no.1
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    • pp.95-103
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    • 1998
  • Dam sediment can be predicted from the two methods: the one is a physical analysis based on the hydrjulic mechanism and the other is an empirical approach using observed data as a design factor. The former can be used to estimate short-term phenomena by mathematical methods. the latter can be used for deriving long-term design parameters such as dead storage calculation. Monthly reservoir operation is possible with the sluicing efficiency curve based on empirical data. The optimal sediment management can be carried out using the information variable which traces deposit sediments corresponding to the reservoir storage. The idea can provide an optimal operation strategy to save effective storage varying with time. This study presents a methodology for the long-term sediment prediction using sluicing efficiency curve. An application is conducted for estimating accumulated sedment deposit and water supply capability ofr the Fenhe dam in the Yellow rever of China.

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Presumption Method for Optimum Correction Rate of Total Construction Cost Using the Median based on Historical Data Analysis in Public Office Buildings (공공건축물 실적자료 분석에 따른 중위수를 활용한 총공사비의 적정보정율 추정방법)

  • Yim, Jin-Ho;Park, Jun-Mo;Kim, Ok-Kyue
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.5
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    • pp.415-422
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    • 2014
  • There is growing difference between a planned value and an actual cost for increasing as an risk of construction cost. A construction cost index is an alternative to redeem a problem, but it is still very difficult to reduce an actual differential as a price fluctuation. Furthermore an existing theory of a construction cost index is overly complex, and is unsuitable for using in working-level. This study suggests an optimum correction rate in respect of a total construction cost. It is analyzing the actual cost of 53 public buildings that the Public Procurement Service ordered. The objects are main processes that include architectural works, mechanical works, electrical works, telecommunication works, and service facilities. It is compared a total construction cost based on absolute error rate using the median from frequentist principle. For this, it is selected the suitable regression model and set a correction rate.

The Establishment Year of 'Jeongnimsa' Temple in Buyeo (백제(百濟) '정림사(定林寺)'의 창건연대(創建年代))

  • Kim, Nak Jung
    • Korean Journal of Heritage: History & Science
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    • v.45 no.4
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    • pp.38-53
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    • 2012
  • This paper investigated the construction year of 'Jeongnimsa(定林寺)temple in Buyeo(扶餘) through the recent archaeological records. First, the composition of land for the construction of temple was linked with Gwanbukri(官北里) sites which is estimated as palace. The composition of land for the palace was formed at late 6th century. Second, the several furnace sites was discovered under the foundation soil layers for the construction of temple. Reference to the pottery excavated from the previous surface indicates that the workshops having been operated a period of time after the transfer of the capital to Sabi(泗?). These workshops having been operated before the construction of roof-tile buildings which were followed by the large-scale composition of land for the palace at Gwanbukri sites adjacent to the north of 'Jeongnimsa. The pottery, roof-tiles and chinese porcelain which were included in the earth laid on the ground for the construction of temple also indicates that the construction year of temple do not go up to shortly after the transfer of the capital to Sabi. This is related with that wooden pagoda would have been present before stone pagoda and the foundation of the wooden pagoda would have soared into the ground. Last, the building layout of temple is familiar to Iksan(益山) Mireuksa(彌勒寺址) temple site than the temples of Buyeo such as Wangheungsa(王興寺址) temple site. This imply that Jeongnimsa temple was not constructed shortly after the transfer of the capital to Sabi like the opinion of the existing. Jeongnimsa temple was probably constructed at late 6th century when composition of the Sabi city was actively made.