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EMISSION LINE VELOCITY FIELD OF THE MAGELLANIC IRREGULAR GALAXY NGC 4449
SASAKI MINORU,OHTANI HIROSHI,SAITO MAMORU,OHTA KOUJI,YOSHIDA MICHITOSHI,SHIMIZU TASUHlRO,KOYANO HISASHI,KOSUGI GEORGE,AOKI KENTARO,SASAKI TOSHIYUKI The Korean Astronomical Society 1996 Journal of The Korean Astronomical Society Vol.29 No.suppl1
The imaging spectroscopic observations of the Magellanic irregular galaxy NGC 4449 were made to show the detailed kinematic structure of the galaxy. Many filamentary structures and Several bubble-like structures are recognized in a 3D data cube of H$\alpha$ emission line. Velocity field shows the kpc-scale mosaic structure and counter- rotation of ionized gas.
On the Methodology of Sea Port Cities Studies
SASAKI, Mamoru(사사키 마모루) 한국해양대학교 국제해양문제연구소 2018 해항도시문화교섭학 Vol.0 No.19
본고는 해항도시 연구를 사회학의 관점에서 재고하고 연구방법론에 관한 몇 가지 문제를 검토한 것이다. 첫째, 해항도시의 개념에 관한 것으로, 해항도시를 접촉지대로서 인식하고 연구해야 한다는 점을 도출했다. 둘째, 세계화 시대의 사회문화적 역동성에 관한 사회학 이론으로서 비교연구방법론을 검토했다. 셋째, 중국의 사회학자 페이샤오퉁이 제안한 ‘유형 비교 접근법’을 검토하여 해항도시 연구방법을 재고했다. 이상의 검토를 통해 필자는 해항도시의 연구방법으로서 비교연구방법의 중요성을 강조하고자 한다. 비교연구방법을 통해 다원적 관점에서 연구 결과를 검토할 수 있고, 개별 사례 연구의 다양한 정보를 축적할 수 있으며, 확장된 주제를 바탕으로 보다 심도있고 종합적인 연구를 진행할 수 있을 것이다. In this paper I propose to rethink of the method of Sea Port Cities Studies. For this subject, I examine some issues. The first issue is on the conception of Sea Port Cities as Contact Zone. The second is a discussion of the sociological theory on socio-cultural dynamics of the globalizing era. The third is about the methodology of Sea Port Cities Studies. In conclusion, I point out the importance of the comparative studies method, through that we can review our findings from pluralistic perspective of academic researches and accumulate various information of individual field study for analyzing the subject more deeply. Besides, we can stress our forum has served important roles to bring up young generation"s researchers.
Photoinduced Electron Transfer From Aromatic Amines to Triplet States of $C_{60}$
Yahata, Yukio,Sasaki, Yoshiko,Fujitsuka, Mamoru,Ito, Osamu Korean Society of Photoscience 1999 Journal of Photosciences Vol.6 No.3
Photoinduced electron transfer of C60 has been studied by the laser photolysis measuring the transient absorption bands in near-IR region. The electron transfer aromatic amines via the triplet state of C60 is confirmed by the decay of the transient absorption bands of the triplet state of C60 and the rise of the anion radical of C60 and the cation radicals of amines. The rate and efficiency of electron transfer are strongly affected by the donor ability of amines and polarity of solvents. Back electron-transfer kinetics is also strongly affected by the solvent polarity.