• Title/Summary/Keyword: Space activity

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Ionospheric F2-Layer Variability in Mid Latitude Observed by Anyang Ionosonde

  • Kwak, Young-Sil;Kumar, Phani;Cho, Il-Hyun;Cho, Kyung-Suk;Kim, Khan-Hyuk;Hong, Sun-Hak
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2009년도 한국우주과학회보 제18권2호
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    • pp.38.2-38.2
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    • 2009
  • The ionosphere displays variations on a wide variety of time-scales, ranging from few hours to days and up to solar cycles and even more. In this paper, we examine the ionospheric F2-layer variability in mid latitude by analyzing the foF2 and hmF2 from the Anyang ionosonde. Especially, we investigate how ionospheric semi-annual and seasonal anomalies vary with local time and solar activity. In addition to the characterization of the ionospheric semi-annual an seasonal anomalies, our study extends to the investigation of the relationship between ionospheric variability and geomagnetic activity. Finally we also discuss the coupling between ionospheric F2-layer variability and thermospheric neutral composition.

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집합주택에 있어서 중간영역의 물리적 특성에 따른 유아활동, 인지, 자립성에 관한 연구 (A Study on the Outdood Activity, Cognition, Independent Behavior of Infant according to the Physical Character of the Intermediate-Territory at the Group Houses)

  • 박윤금
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 1994년도 학술발표대회논문집 하
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    • pp.79-84
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    • 1994
  • The purpose of this study is to find out the relation between the outdoor activity and independent behavior of infant and the physical charater of the intermediate-territory. Another purpose is to find out the estimate of infant smother to the intermediate-territory as the space of the infant's outdoor life. As the result of this study, the following points are confirmed :1) The outdoor activity. cognition. independent behavior of infant is affected by the physical character of the intermediate-territory.2) The time and frequency of outdoor activity is affected by the physical character of the intermediate-territory. 3) The cognition and the boundary of outdoor activity are affected by the physical character of the intermediate-territory.4) The time of independent behavior is affected by the physical character of the intermediate-territory.5) The estimate of infant's mother to the intermediate-territory as the space of infant’s activity is very bad. Therefore the physical environment of intermediate-territory is very poor.

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집합주택 중간영역의 물리적 특성별 유아의 활동 , 인지 , 자립성에 관한 연구 (A Study on the Outdoor Activity , Cognition , Independent Behavior of Infant according to the Physical Character of the Intermediate-Territory at the Group Houses)

  • 박윤금
    • 한국주거학회논문집
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    • 제6권2호
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    • pp.43-49
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    • 1995
  • The purpose of this study is to find out the relation between the outdoor activity and independent behavior of infant and the physical charater of the intermediate-territory. Another purpose is to find out the estimate of infant's mother to the intermediate-territory as the space of the infant's outdoor life. As the result of this study, the following points are confirmed: 1) The outdoor activity, cognition, independent behavior of infant is affected by the physical character of the intermediate-territory. 2) The time and frequency of outdoor activity is affected bu the physical character of the intermediate-territory. 3) The cognition and the boundary of outdoor activity are affected by the physical character of the intermediate-territory. 4) The time of independent behavior is affected by the physical character of the intermediate-territory. 5) The estimate of infant's mother to the intermediate-territory as the space of infant's activity is very bad. The physical environment of intermediate-territory is very poor.

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Fashion, addressing the new body - The body, fashion and art -

  • Park, Shinmi
    • 복식문화연구
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    • 제20권5호
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    • pp.782-798
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    • 2012
  • The research aim is to analyze the attributes of fashion as an object of art, and to examine its potential and status as an art of body space. This paper explains the relationship between these two disciplines by focusing on the body as the foundation of fashion and art's concepts, and discusses the intrinsic properties and the approach to the creation of fashion which is expressed through the body. The research begins by analyzing the sociologists thoughts on the body and extracts the characteristics of fashion as a practice of a new art field from the perspective of body creating space. It explains that fashion can most easily transform the body and that this, along with the body itself, possesses the element of creating body space. Fashion is a new avenue for understanding the body that not only includes the human figure but also its movement and spirit approached as a creative activity. The paper will show that fashion chosen as an art activity expresses the changeable and ambiguous body and embraces an unlimited potential of creative activity. This expands the creative field by managing both the inner and outer space of the body. Historical examination, literature review and overview of development of reference materials will establish the theory.

Different Responses of Solar Wind and Geomagnetism to Solar Activity during Quiet and Active Periods

  • Kim, Roksoon;Park, Jongyeob;Baek, Jihye;Kim, Bogyeung
    • 천문학회보
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    • 제42권1호
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    • pp.41.1-41.1
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    • 2017
  • It is well known that there are good relations of coronal hole (CH) parameters such as the size, location, and magnetic field strength to the solar wind conditions and the geomagnetic storms. Especially in the minimum phase of solar cycle, CHs in mid- or low-latitude are one of major drivers for geomagnetic storms, since they form corotating interaction regions (CIRs). By adopting the method of Vrsnak et al. (2007), the Space Weather Research Center (SWRC) in Korea Astronomy and Space Science Institute (KASI) has done daily forecast of solar wind speed and Dst index from 2010. Through years of experience, we realize that the geomagnetic storms caused by CHs have different characteristics from those by CMEs. Thus, we statistically analyze the characteristics and causality of the geomagnetic storms by the CHs rather than the CMEs with dataset obtained during the solar activity was very low. For this, we examine the CH properties, solar wind parameters as well as geomagnetic storm indices. As the first result, we show the different trends of the solar wind parameters and geomagnetic indices depending on the degree of solar activity represented by CH (quiet) or sunspot number (SSN) in the active region (active) and then we evaluate our forecasts using CH information and suggest several ideas to improve forecasting capability.

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주거.사무공간의 조명환경 평가구조에 관한 연구 (A Study on Evaluation Structure of luminous Environment in o residential space and office work space)

  • 이선영
    • 조명전기설비학회논문지
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    • 제17권2호
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    • pp.1-9
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    • 2003
  • 본 연구는 공간 특성이 서로 다른 주거공간과 사무공간의 조명환경 평가구조에 어떠한 차이가 있는지를 파악하고, 분위기항목과 행위항목과의 관계를 정립하는데 목적을 두고 먼저 조명환경에 대한 평가항목으로써 20개의 분위기항목과 15개의 행위항목을 선정하였다. 그리고 SD법에 의한 주관평가실험을 실시하였다. 그 결과, 공간의 특성이 달라도 조명환경의 분위기평가는 <활동성>, <안정감>, <고급감>의 3인자로 설명이 가능한 것으로 나타났다. 행위 인자에 있어서는 주거공간의 경우 <작업행위>,<휴식행위>,<오락행위>의 3인자가 추출되었고, 사무공간의 경우 <작업행위>, <비작업행위>의 2인자가 추출되었다. 주거공간에서의 3가지 행위인자를 설명하는데 있어서 가장 커다란 영향을 미치는 분위기인자는 <활동성>인자로 나타났으며, 사무공간의 경우, <작업행위>는 <활동성>인자가, <비작업행위>는 <고급감>인자가 가장 큰 영향을 미치고 있는 것으로 나타났다.

나로우주센터 상공의 대기 안정도지수 및 뇌운관련 대류활동 특성 연구 (A Study on the Characteristics of Convective Activities related to Atmospheric Stability Index and Thunderstorms over the Naro Space Center)

  • 김홍일;최은호;서성규
    • 한국환경과학회지
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    • 제28권12호
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    • pp.1133-1145
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    • 2019
  • Successful launch requires state-of-the-art launch vehicle technology and constant test operations, However, the meteorological threat to the launch vehicle flight trajectory is also an important factor for launch success. Atmospheric stability above the Naro Space Center at the this time is very important, especially because the initial flight operation can determine the success of the launch. Moreover, during the flight of launch vehicle with rapid pressure and thrust into the atmosphere, convection activity in the atmosphere may create environmental conditions that cause severe weather threats such as thunderstorms. Hence, studies of atmospheric instability characteristics over the Naro Space Center are a necessary part of successful launch missions. Therefore, the main aims of this study were to (1) verify the atmospheric stability index and convection activity characteristics over the Naro Space Center using radiosonde data observed from 2007 to 2018 by the Naro Space Center, (2) analyze changes in the atmospheric stability index according to monthly and seasonal changes, and (3) assess how the calculated atmospheric stability index is related to actual thunderstorm occurrence using statistical analysis. Additionally, we aimed to investigate the atmospheric characteristics above the Naro Space Center through the distribution chart of the atmospheric stability index during summer, when convection activity is highest. Finally, we assessed the relationship between lightning occurrence and unstable atmospheric conditions, through predictability analysis performed using the lightning observation data of the Korea Meteorological Administration.

The Transition Effect of Korea's Space Development

  • Kim, Jong-bum
    • International Journal of Advanced Culture Technology
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    • 제6권2호
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    • pp.80-85
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    • 2018
  • In the 1990s, South Korea recently launched Space Development and is pushing for a step toward Space. In the Space Launch Vehicle field, the development of Practical satellite type Launch Vehicle (Korea Space Launch Vehicle II) has progressed to the stage of proprietary development, and in the field of Satellite development, they also have a great deal of competitiveness. This study will be a shortcut to rediscovering our potential and looking for breakthroughs by reviewing and re-examining the effects of past Space development.

전통주거(傳統住居) 공간의 생리적(生理的) 특성(特性)에 관한 연구 - 전북지방 농촌주택(農村住宅)을 중심으로 - (A study on the Physiological Character of living Space in Traditional Koaean House - Focsed on the rural house in Chonbuk province -)

  • 김용집
    • 건축역사연구
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    • 제8권2호
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    • pp.59-72
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    • 1999
  • The purpose of this study is to find the spatial factors, strucure of living and activity in traditional Korean house through the Phiysiological view, Spatial factors of the house are concerned to the interior environment and sanitary condition, The elements of respiratory, nerve, temperature sence. vision, hearing, smelling have good condition and touch, pressure sence, pain, metabolism are poor in the house, Ventilation, Lighting, pleasant condition of interior environment are concerned to the elements that mentioned above and have most important meaning in the relation rate of space as 1st factor. And 2nd factor is for metabolism, housework and rest, 3rd factor ie for temperature sence, privacy and reproduction. The relation rate of factors concering interior environment are high in the upper class house. Anbang has important meaning in the relation of living structure and relation sequence of space is anbang, Konnonbang, kitchen, toilet, water place, auxiliary buildings. The relation rate of activity is high in interior space in winter and exterior space in summer.

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Solar Activity as a Driver of Space Weather II. Extreme Activity: October-November 2003

  • Jo, Gyeong-Seok;Mun, Yong-Jae;Kim, Rok-Sun;Hwang, Yu-Ra;Kim, Hae-Dong;Jeong, Jong-Gyun;Im, Mu-Taek;Park, Yeong-Deuk
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2004년도 한국우주과학회보 제13권1호
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    • pp.38-38
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    • 2004
  • In this talk, we present a good example of extreme solar and geomagnetic activities from October to November, 2003. These activities are characterized by very large sunspot groups, X-class solar flares, strong particle events, and huge geomagnetic storms. We discuss ground-based and space-based data in terms of space weather scales. We applied the CME propagation models to these events in order to predict the arrivals of heliospheric disturbances. (omitted)

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