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임호섭,신경철,함웅,채정호,김한오,정찬호 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.2
Objectives : Patient's behavior features are important factors which influences the clinical judgement including diagnosis. However, most psychiatrists build up a picture of patients' behavior from an amalgamation of their own brief observations and nurses' reports, which often lack in the objectiveness. Several behavioral scales have been developed to alleviate this difficulty, but the poor efficiency and reliability of these scales have made them less useful. The recently developed Ward Daily Behavior Scale is an objective tool for evaluating all the daily noteworthy behaviors of patients, and is easily applicable to wide ranges of diagnoses and ages. This study tried to prove the reliability and validity of the Ward Daily Behavior Scale-Korean version. Methods : The 112 patients, 63 males and 49 females, at a chronic psychiatric inpatient ward were selected as subjects. Experienced and unexperienced nurses rated patients' behaviors independently with the Ward Daily Behavior Scale-Korean version, after observing behaviors of subjects for 8 hours during day duty time. And then we tested the inter-rater reliability, internal consistency, and concurrent validity of this scale. Results : The Ward Daily Behavior Scale-Korean version proved to be both reliable and valid for measuring of behaviors of psychiatric inpatients. Conclusions : The Ward Daily Behavior Scale-Korean version will be a valuable tool to observe and quantify patients' behavior in psychiatric wards.
Observing Simulations of Far-Infrared Surveyor on-board ASTRO-F: Extragalactic Point Sources
Woong-Seob Jeong,Soojong Pak,Hyung Mok Lee,Sam Kim,Jungjoo Sohn,Mikako Matsuura,Takao Nakagawa,Issei Yamamura,Shujl Matsuura,Mitsunobu Kawada,Hidehiro Kaneda,Hiroshi Murakami,Hiroshi Shibai 한국천문학회 2000 天文學會報 Vol.25 No.2
Conceptual Design of the NISS onboard NEXTSat-1
Jeong, Woong-Seob,Park, Sung-Joon,Park, Kwijong,Lee, Dae-Hee,Pyo, Jeonghyun,Moon, Bongkon,Park, Youngsik,Kim, Il-Joong,Park, Won-Kee,Lee, Duk-Hang,Park, Chan,Ko, Kyeongyeon,Matsumoto, Toshio,Takeyama, 한국우주과학회 2014 Journal of Astronomy and Space Sciences Vol.31 No.1
The NISS onboard NEXTSat-1 is being developed by Korea astronomy and space science institute (KASI). For the study of the cosmic star formation history, the NISS performs the imaging spectroscopic observation in the near-infrared range for nearby galaxies, low background regions, star-forming regions and so on. It is designed to cover a wide field of view (2 x 2 deg) and a wide wavelength range from 0.95 to 3.8 μm by using linear variable filters. In order to reduce the thermal noise, the telescope and the infrared sensor are cooled down to 200 K and 80 K, respectively. Evading a stray light outside the field of view and making the most use of limited space, the NISS adopts the off-axis reflective optical system. The primary and the secondary mirrors, the opto-mechanical part and the mechanical structure are designed to be made of aluminum material. It reduces the degradation of optical performance due to a thermal variation. This paper presents the study on the conceptual design of the NISS.
Far-infrared detection limits – I. Sky confusion due to Galactic cirrus
Jeong, Woong-Seob,Mok Lee, Hyung,Pak, Soojong,Nakagawa, Takao,Minn Kwon, Suk,Pearson, Chris P.,White, Glenn J. Blackwell Science Ltd 2005 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.357 No.2
<P>ABSTRACT</P><P>Fluctuations in the brightness of the background radiation can lead to confusion with real point sources. This type of confusion with background emission is relevant when making infrared (IR) observations with relatively large beam sizes, since the amount of fluctuation tends to increase with the angular scale. To quantitively assess the effect of the background emission on the detection of point sources for current and future far-IR observations by space-borne missions such as <I>Spitzer</I>, <I>ASTRO-F</I>, <I>Herschel</I> and <I>Space Infrared Telescope for Cosmology and Astrophysics</I> (<I>SPICA</I>), we have extended the Galactic emission map to a higher level of angular resolution than that of the currently available data. Using this high-resolution map, we estimate the sky confusion noise owing to the emission from interstellar dust clouds or cirrus, based on fluctuation analysis and detailed photometry over realistically simulated images. We find that the confusion noise derived by simple fluctuation analysis agrees well with the results from realistic simulations. Although sky confusion noise becomes dominant in long wavelength bands (>100 μm) with 60–90 cm aperture missions, it is expected to be two orders of magnitude lower for the next generation of space missions (with larger aperture sizes) such as <I>Herschel</I> and <I>SPICA</I>.</P>
Observing Simulations of Far-Infrared Surveyor on-board ASTRO-F : Extragalactic Point Sources
Woong-Seob Jeong,Soojong Pak,Hyung-Mok Lee,Sam Kim,Jungjoo Sohn,Mikako Matsuura,Takao Nakagawa,Issei Yamamura,Shuji Matsuura,Mitsunoby Kawada,Hidehiro Kaneda,Hiroshi Murakami,Hiroshi Shibai 한국우주과학회 2000 한국우주과학회보 Vol.9 No.2