• Korean Institute of Interior Design Journal
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• v.25 no.1
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• pp.172-180
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• 2016

This study aimed to evaluate how universal design principles are embodied in the Public Service Center. It will be used for planning the basic materials of the interior environmental design for Public Service Center facilities and for developing ways to improve interior environments in order for them to be conveniently used. In studying a method, we conducted an Universal Design check list to evaluate interior environment, targeting five Public Service Center facilities located in Gwangju Metropolitan city. This study investigated the Universal Design suitability of center interior Public Service Center on the basis of the tools for Universal Design check list which was composed of supportive design, adaptable design, communicability, safety-oriented design, and accessible design. Through theoretically considering the services of Gwangju's old city hall public service center, which got divided into common space, public service space, waiting space and informative material space. Evaluation on universal design application level showed that those with best universal design application are supportiveness and safety in public service space, communication efficacy and safety in waiting space and safety and accessibility in informative material space and acceptability in waiting space had the lowest application level.

• Korean Journal of Optics and Photonics
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• v.22 no.6
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• pp.262-268
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• 2011

MIRIS(Multi-purpose Infra-Red Imaging System) is the main payload of the STSAT-3(Korea Science and Technology Satellite. 3), which is being developed by KASI(Korea Astronomy & Space Institute). EOC(Earth Observation Camera), which is one of two infrared cameras in MIRIS, is the camera for observing infrared rays from the Earth in the range of $3{\sim}5{\mu}m$. The optical system of the EOC is a Cassegrain prescription with aspheric primary and secondary mirrors, and its aperture is 100mm. A ring type flexure supports the EOC primary mirror with pre-loading in order to withstand expected load due to the shock and vibration from the launcher. Here we attempt to use the same mechanism by which a retainer supports the lens. Through opto-mechanical analysis it was confirmed that the EOC primary mirror is effectively supported.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.1
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• pp.50.2-50.2
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• 2018

국립청소년우주센터 덕흥천문대의 NYSC 1m 망원경은 청소년을 대상으로 관측제안서를 공개모집하고, 청소년의 전문적인 천문관측을 지원하고 있다. 2017년 한 해, 접수된 청소년의 관측제안은 총 10건이었다. 이외에도 덕흥천문대는 양질의 관측자료를 국내 연구팀과의 공동연구를 통해 제공하고 있으며, 공동연구 장기관측과제 3건을 운영 중에 있다. 덕흥천문대 관측팀은 청소년 관측 및 공동연구를 지원하는 것과 더불어 망원경의 상태를 상시 점검하고 있다. 스티커 및 $CO_2$ 분사를 이용한 경면 세척을 진행하였고, 2017년 하반기에는 1m 망원경의 성능을 최대로 발휘할 수 있도록 CCD 카메라를 Princeton Instruments의 SOPHIA 2048B로 교체하였다. 그리고 앞으로 덕흥천문대에서 진행할 향후 운영 계획에 대해서도 논하고자 한다.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.1
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• pp.50.1-50.1
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• 2018

We present the development of tools for Echelle spectrograph of NYSC 1-m telescope. The eShel spectrograph(Shelyak) has operated at Deokheung Optical Astronomy Observatory since 2016. We carried out test observation in 2016 and completed the preprocessing and wavelength calibration of the spectroscopic data using IRAF. Based on the reduction process in IRAF, PySpecW, a set of tools for spectroscopic data was developed in 2017. PySpecW was optimized for NYSC 1m telescope, and written in Python for youth to use easily on any OS. PySpecW consists of preprocessing, aperture tracing, aperture extraction, wavelength calibration, and dispersion correction for extracted spectra.

• The Bulletin of The Korean Astronomical Society
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• v.45 no.1
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• pp.44.2-44.2
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• 2020

The Korea Astronomy and Space Science Institute (KASI) has been collaborating with the NASA Goddard Space Flight Center (GSFC), to install a diagnostic coronagraph on the International Space Station (ISS). The coronagraph is designed to obtain simultaneous measurements of electron density, temperature, and velocity using multiple filters in the 3-10 Rs range. In 2019, we developed a new coronagraph and launched it on a stratospheric balloon (BITSE) from Fort Sumner, New Mexico in USA. As the next step, the coronagraph will be further developed, installed and operated on the ISS (CODEX) in 2023 to understand the physical conditions in the solar wind acceleration region, and enable and validate the next generation space weather models. In this presentation, we will report recent progress and introduce future plan.

• Journal of The Korea Institute of Healthcare Architecture
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• v.7 no.2
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• pp.27-36
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• 2001

This study aims to provide space organization of the Postpartum Care Center and basic data for architectural planning in the reasonable size. Nurturing method of infants at independent Postpartum Care Center combines rooming-in and non rooming-in and space organization is planned accordingly. Types of the existing floor plans are classified as a type centered on maternity protection room, a type of the separate space for multipurpose, a near type to the infants' room. New types of plane are presented as follows a core type concentrate upon nurse room, the infants' room and the same environmental and balanced corridors between the both. When an average capacity of 20 at Postpartum Care Center is planned, proper suitable floor space of Postpartum Care Center is above $753.9m^2$ and $37.69m^2$ per postpartum woman is required. It is indicated that an average floor space per postpartum woman of the reviewed facilities is smaller than one of the Postpartum Care Center in a plan and plane distributed by function too lack in nursing space. Expansion of space for the Postpartum Care Center is generally required, also the enlargement of nursing space is necessary to be harmonized with the management of a medical facilities and those mutual cooperation.

• Journal of The Korean Astronomical Society
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• v.54 no.3
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• pp.89-102
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• 2021

Even in an era where 8-meter class telescopes are common, small telescopes are considered very valuable research facilities since they are available for rapid follow-up or long term monitoring observations. To maximize the usefulness of small telescopes in Korea, we established the SomangNet, a network of 0.4-1.0 m class optical telescopes operated by Korean institutions, in 2020. Here, we give an overview of the project, describing the current participating telescopes, its scientific scope and operation mode, and the prospects for future activities. SomangNet currently includes 10 telescopes that are located in Australia, USA, and Chile as well as in Korea. The operation of many of these telescopes currently relies on operators, and we plan to upgrade them for remote or robotic operation. The latest SomangNet science projects include monitoring and follow-up observational studies of galaxies, supernovae, active galactic nuclei, symbiotic stars, solar system objects, neutrino/gravitational-wave sources, and exoplanets.

• The Bulletin of The Korean Astronomical Society
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• v.44 no.2
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• pp.56.4-56.4
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• 2019

The Korea Astronomy and Space Science Institute (KASI) has been collaborating with the NASA's Goddard Space Flight Center, to install a coronagraph on the International Space Station (ISS). The coronagraph will utilize spectral information to simultaneously measure electron density, temperature, and velocity. As a first step, we developed a new coronagraph and launched it on a stratospheric balloon in 2019 (BITSE) from Fort Sumner, New Mexico in USA. As the next step, the coronagraph will be be further developed, installed and operate on the ISS (CODEX) in 2022 to address a number of important questions (e.g., source and acceleration of solar wind, and coronal heating) in the physics of the solar corona and the heliosphere. Recently, BITSE has been launched at Fort Sumner, New Mexico. In this presentation, we will introduce the BITSE mission and discuss recent progress.

• The Bulletin of The Korean Astronomical Society
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• v.46 no.2
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• pp.78.3-79
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• 2021

Coronal Diagnostic Experiment (CODEX) is a diagnostic coronagraph developed by the Korea Astronomy and Space Science Institute and the NASA Goddard Space Flight Center (GSFC) to be deployed in 2023 on the International Space Station (ISS). It is designed to obtain simultaneous measurements of electron density, temperature, and velocity in the 2.5 - 10 solar radius range using multiple filters. The filters are mounted in two filter wheel assemblies (FWAs), which have five filter positions each. One position of each FWA is occupied by windows, and remaining eight positions are occupied by three bandpass filters for temperature, two bandpass filters for velocity, one Ca II H filter for F-corona, one broadband filter for fast imaging and density, and one neutral density (ND) filter for direct Sun viewing and safety.

• The Bulletin of The Korean Astronomical Society
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• v.31 no.1
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• pp.55.1-55.1
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• 2006