• 제목/요약/키워드: "The cat"

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자동차산업의 디지털 개발 프로세스 구축

  • Gang, Byeong-Sik
    • Journal of the KSME
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    • v.53 no.1
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    • pp.51-55
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    • 2013
  • 자동차산업은 CAx(CAS, CAD, CAE, CAM, CAT)로 대변되는 디지털 기법들을 '80년대부터 도입하여 개발효율을 높이고 제품품질을 향상시키는 데 활용해 왔다. 현재는 특정기법을 활용한 해당 부문의 업무효율을 높이는 단계를 넘어서, CAx 기법들을 차량개발프로세스에 접목하여 전체 개발효율을 극대화시키는 관점의 디지털 개발 프로세스 구축이, 선진 자동차사의 관심사이다.

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Candid tropicalis Trichosporon cat-aneum의 혼합배양에 관한 연구 제2보 혼합배양계의 동력학

  • 유주현;변유량
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1978.04a
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    • pp.98.1-98
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    • 1978
  • Commensalistic system을 구성하는 B. tropicatis 와 T. cutaneum의 회분 및 연속배양을 통하여 여러 가지 동력학적 data를 구하고 mathematical model을 연구하여 다음과 같은 모형을 구성하였다. (equation omitted) 위의 모형을 computer simulation하여 정상상태와 과도상태에서의 응답을 분석하고 중요한 배양결과를 예측하였다.

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RESIDUAL FINITENESS AND ABELIAN SUBGROUP SEPARABILITY OF SOME HIGH DIMENSIONAL GRAPH MANIFOLDS

  • Kim, Raeyong
    • Korean Journal of Mathematics
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    • v.29 no.3
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    • pp.603-612
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    • 2021
  • We generalize 3-manifolds supporting non-positively curved metric to construct manifolds which have the following properties : (1) They are not locally CAT(0). (2) Their fundamental groups are residually finite. (3) They have subgroup separability for some abelian subgroups.

Coregulation of lux Genes and Riboflavin Genes in Bioluminescent Bacteria of Photobacterium phosphoreum

  • Sung, Nack-Do;Lee, ChanYong
    • Journal of Microbiology
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    • v.42 no.3
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    • pp.194-199
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    • 2004
  • Investigation of the expression of the riboflavin (rib) genes, which are found immediately downstream of luxG in the lux operon in Photobacterium phosphoreum, provides more information relevant to the evolution of bioluminescence, as well as to the regulation of supply of flavin substrate for bacterial bioluminescence reactions. In order to answer the question of whether or not the transcriptions of lux and rib genes are integrated, a transcriptional termination assay was performed with P. phoxphoreum DNA, containing the possible stem-loop structures, located in the intergenic region of luxF and luxE ($\Omega$$\_$A/), of luxG and ribE ($\Omega$$\_$B/), and downstream of ribA ($\Omega$$\_$c/). The expression of the CAT (Chloram-phenicol Acetyl Transferase) reporter gene was remarkably decreased upon the insertion of the stem-loop structure ($\Omega$$\_$c/) into the strong lux promoter and the reporter gene. However, the insertion of the structure ($\Omega$$\_$B/) into the intergenic region of the lux and the rib genes caused no significant change in expression from the CAT gene. In addition, the single stranded DNA in the same region was protected by the P. phosphoreum mRNA from the Sl nuclease protection assay. These results suggest that lux genes and rib genes are part of the same operon in P. phosphoreum.