• Title/Summary/Keyword: 황성

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Optimal Surfactant Structures for Cosurfactant-Free Microemulsion Systems (II) -Dialkylbenzene and Dialkylphenol Hydrophobes- (계면활성제의 구조가 Microemulsion 형성에 미치는 영향(제II보) -친유기 Dialkylbenzene과 Dialkylphenol-)

  • 김천희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.3
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    • pp.419-428
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    • 1994
  • Microemulsion을 형성하기 위해서는 일반적으로 주계면활성제와 함께 보조계면황성제가 첨가 된다. 그러나 보조계면활성제는 이론적으로 반드시 필요한 것은 아니며, 주계면활성제의 친유기 구조를 적절히 변화시킴으로써 보조계면황성제의 필요량을 감소시킬 수 있다. Microemulsion계 를 형성하기 위한 최적의 계면황성제구조를 찾기 위하여 twin tail형 계면활성제인 dialkylbenzene과 dialkylphenol친유기를 갖는 계면황성제를 연구하였다. p-dihexylbenzene sodium sulfonate는 보조계면활성제 없이 microemulsion을 형성하였지만, dialkylphenol sodium sulfates는 젤이나 액정등을 제거하기 위하여 보조계면활성제를 필요로 하였다.

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A Study on the Perception of Orient in Huangseong-Shinmun(皇城新聞) (황성신문의 '동양(東洋)' 인식에 관한 연구)

  • Park, Jeoung-sim
    • The Journal of Korean Philosophical History
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    • no.59
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    • pp.425-453
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    • 2018
  • This paper study about the Perception of Orient in Huangseong-Shinmun(皇城新聞). The Orient as a Non-Western is recognized as a geographical concept which represented Japanized culture and which breaked up Sinocentrism. Huangseong-Shinmun thought Korea, China, and Japan as the main countries which constitute Orient. And this paper regarded these three countries which is Yellow race are main area which countervail Western. Especially this paper thought Japan as the leading power which fulfilled Oriental peace. So Huangseong-Shinmun theorized nations of the same race, region and language(同種同州同文論). But Orientalism is just means which Japan used to rationalized the imperialistic invasion. Nevertheless Huangseong-Shinmun thought that periods are the era of racial competition. This is the limit Huangseong-Shinmun did'nt recognize the strategy which Japan concealed the imperialistic invasion.

인터뷰 - 아너소사이어티 회원 가입한 황성일 (주)동아인업 대표이사

  • Im, Nam-Suk
    • 프린팅코리아
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    • v.14 no.9
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    • pp.84-87
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    • 2015
  • 황성일 대표이사는 50년 전 부산에 터를 잡은 후 갖은 고생을 하다가 인쇄업을 접하게 됐고, 현재 부산지역 대표 인쇄사인 (주)동아인업을 운영하고 있다. 지난 7월 27일 부산사회복지공동모금회에 1억원을 기부하며 고액 기부자 모임인 부산 아너소사이어티 회원으로 가입해 화제가 됐다. 나눔의 삶을 실천하고 있는 황성일 대표이사와 서면인터뷰를 통해 기부에 대한 생각을 들어봤다.

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Evidence of Intrusion of a Rare Species, Peristedion liorhynchus, into Korean Waters Based on High-throughput Sequencing of the Mixed Fish Eggs (희귀종 남방황성대(Peristedion liorhynchus)의 한국해 유입 증거 혼합 어란의 대용량 염기서열 분석법(high-throughput sequencing)으로 발견)

  • Choi, Hae-young;Chin, Byung-sun;Park, Gyung-soo;Kim, Sung
    • Korean Journal of Ichthyology
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    • v.34 no.1
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    • pp.8-15
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    • 2022
  • The appearance of larvae of a rare species, Peristedion liorhynchus, in Korean waters is suggestive of spawning or adult intrusion. We conducted high-throughput sequencing (HTS) on 31,776 pelagic fish eggs collected from 123 stations off the Korean Peninsula during May to August in 2013, 2014 and 2017. A total of 21,621,874 HTS reads were mapped onto the P. liorhynchus COX1 reference sequence. Three consensus sequences (313 bp) were constructed from the three samples, respectively, off Uljin and Goeje Islands in May and off Ulsan in July. These samples were formed a clade with P. liorhynchus in the maximum likelihood tree of Peristedion. The average genetic distance within the P. liorhynchus clade (0.0054±0.0046) was less than that among clades (0.1475±0.0396). The results indicate that the HTS analysis of mixed fish eggs is useful for monitoring the intrusion of rare species such as P. liorhynchus in Korean waters.

A Study on the Desulfurization and Demineralization by Chemical Treatment of Petroleum Cokes (Petroleum Cokes의 화학적 처리에 의한 황성분 및 회분제거에 관한 연구)

  • Han, Woong;Lee, Si-Hyun;Park, Chu-Sik;Yang, Hyun-Soo
    • Applied Chemistry for Engineering
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    • v.7 no.6
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    • pp.1115-1124
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    • 1996
  • An MCL(Molten Caustic Leaching) treatment is a chemical refinery process which is used for the desulfurization and demineralization by alkali treatment. The MCL treatment removes ash by converting mineral like Si, Fe, V, Ni etc. in petroleum cokes into soluble salts. The MCL has an advantage minimizing carbon loss in comparison to other desulfurization process. Reaction variables for the desulfurization and demineralization in the study were leaching temperature, leaching time, ratio of caustic to cokes, acid concentration and time for washing, and particle size. At the optimum condition, above 99% of desulfurization and about 90% of demineralization was obtained. FT-IR and SEM analysis showed that the structure and surface of the particle was closely related with the degree of sulfur and ash removal, and leaching temperature as well.

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A New Yellow Graft Cactus(Gymnocalycium mihanovichii × marsoneri) Cultivar 'Hangseong' (노란색 비모란 종간교잡종 '황성' 육성)

  • Jeong, Myeong Il;Chung, Bong Nam;Park, Pil Man
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.4
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    • pp.321-324
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    • 2008
  • A new yellow graft cactus Gymnocalycium mihanovichii ${\times}$ marsoneri cv. 'Hangseong' was developed by the National Institute of Horticultural &Herbal Science, Rural Development Administration in 2005. 'Hangseong' was selected from a interspecific crossing between Gymnocalycium mihanovichii and G. marsoneri. In 1998, 2 lines of '9834024' and '9834036' were selected from a crossing between G. mihanovichii 'IG-124' and G. marsoneri 'IG-223'. The 2 lines were crossed between them. In 2001, progenies produced from a crossing of the 2 lines were nursed and, finally yellow colored 'Wonkyo G1-169' was selected through 3 times of characteristic trials. It was named as 'Hangseong' and applied for a variety protection. Characteristics of 'Hangseong' is as follows: The color of body and tubercles is yellow. The shape of glove is flat with 7 to 9 deep ribs. Spine is medium straight with long size and brown color. Growth is fast as to reach 49.5 mm in diameter at 10 month after planting. Propagation ability is good as to set as many as 7.2 tubercles. 'Hangseong' is suitable for export to European countries or America. Characteristics of the cultivar can be maintained by vegetative propagation.