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BLACK HOLE MASS MEASUREMENTS WITH REST-FRAME OPTICAL QUASAR SPECTRA AT 3<z<
Jun, Hyunsung David,Im, Myungshin,Lee, Hyung Mok,AKARI QSONG team, AKARI QSONG team The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4
We summarize the progress on the rest-frame optical spectroscopy of quasars at 3<z<6, from the AKARI QSONG program. QSONG (Quasar Spectroscopic Observations with NIR Grism) is an AKARI space telescope mission program which utilizes the unique spectroscopic capability in the wavelength range of $2.5-5{\mu}m$. This spectral window has been utilized for detecting redshifted $H{\alpha}$ emission lines of our high redshift subsample of quasars. From the calculated emission line widths and luminosities we measured supermassive black hole masses using well calibrated optical mass estimators. Science topics regarding optical based black hole masses at high-z are discussed.
금융소비자 보호 이슈에 따른 금융회사의 소셜 미디어 커뮤니케이션 행태에 관한 내용분석 연구 페이스북 팬페이지를 중심으로
이태준 ( Tae Jun(david) Lee ),정원준 ( Won Jun Chung ),한광석 ( Kwang Seok Han ),김병준 ( B. Joon Kim ) 한국PR학회 2014 PR연구 Vol.18 No.2
The purpose of this study is to examine how major financial firms in South Korea enact utilize facebook fan-pages for relational maintenance and strategic communication in response to the socio-political and regulatory changes on financial consumer protection under the light of an issue management perspective. Specifically, this study aims to investigate whether different types of financial firms display different levels of relational maintenance strategies, message strategies, and communication tools presented in their facebook fan-pages in 2013 when the societal issues and political agenda of financial consumer protection and welfare were developed and embodied in the financial marketplace. To this end, 716 relational maintenance strategies, 316 cover-stories, and 7569 corporate posting messages presented in 77 financial firms’ facebook fan-pages were analyzed for the presence and quality of variables identified in the public relations and advertising literature as measures of relational maintenance strategies, financial services advertising appeals, and services integrated marketing communication. Results show that despite the increasing adoption of the facebook communication practice and the importance of financial consumer protection, many financial firms still do not seem to harness the unique potential of a facebook to the fullest extent for building and maintaining relationships with the public. However, financial firms differently use message strategies in cover-stories and communication tools in posting messages to maximize the effectiveness of their advertising and promotion efforts in conjunction with the scope and level of financial consumer protection issues. This paper is the fist attempt to provide a longitudinal overview of the state of financial firms’ facebooks and strategies. In addition, this paper give an insight into how financial firms’ facebook fan-pages can serve as a real issue management tool in helping to promote financial consumer welfare.
H¹NMR 분석에 의한 POLYNUCLEOTIDE의 물리적 특성 연구
전성식,서석균 순천향대학교 1983 논문집 Vol.6 No.2
Ultra high-resolution proton nuclear magnetic resonance spectra at 400 MHz have been used to investigate the base-pairing structure for the following polynucleotides: poly A, poly U, and poly A-poly U from RNA. The observed resonance spectrum agrees quite well with the prediction. The agreement confirms the predicted resonance position at 14.5ppm. The observed resonances are found at 14.5ppm within ±0.3 part per million, showing that there is no interactions, except those taken into account in the compatation, to explain the chemical shift of NMR.