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AKARI OBSERVATIONS OF MASSIVE STAR-FORMING REGIONS INDICATIVE OF LARGE-SCALE CLOUD-CLOUD COLLISIONS

  • Hattori, Yasuki;Kaneda, Hidehiro;Ishihara, Daisuke;Yamagishi, Mitsuyoshi;Kondo, Toru;Sano, Hidetoshi
    • Publications of The Korean Astronomical Society
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    • v.32 no.1
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    • pp.123-125
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    • 2017
  • We present our AKARI study of massive star forming regions where a large-scale cloud-cloud collision possibly contributes to massive star formation. Our targets are Spitzer bubbles, which consist of two types of bubbles, closed and broken ones; the latter is a candidate of the objects created by cloud-cloud collisions. We performed mid- and far-infrared surface photometry toward Spitzer bubbles to obtain the relationship between the total infrared luminosity, $L_{IR}$, and the bubble radius, R. As a result, we find that $L_{IR}$ is roughly proportional to $R^{\beta}$ where ${\beta}=2.1{\pm}0.4$. Broken bubbles tend to have larger radii than closed bubbles for the same $L_{IR}$.

Improvement of the Systematic Control and Process on Account Receipt (수취계정에 대한 체계적 관리 및 프로세스 개선)

  • Choi, Chang-Hwan;Lee, Jong-Hwan;Kim, Tae-Sung;Yoon, Sang-Han;Park, Kwang-Hee;Lee, Hee-Chun;Seo, Yeong-Bok
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.34 no.1
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    • pp.60-66
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    • 2011
  • This study looks at a company which introduced SAP program, one type of ERP systems, and how the firm copes with the problems which happen in business process. The research tried to solve the problem by IDEAL method of process software improvement methodology. As a result, receipt account program for credit sales could be developed; the program was applied to the actual business work and operated.