• 천문학논총
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• 제27권3호
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• pp.81-86
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• 2012

The International Space Station (ISS) orbits the Earth within the inner radiation belt, where high-energy protons are produced by collisions of cosmic rays to the upper atmosphere. About 6 astronauts stay in the ISS for a long period, and it should be important to monitor and assess the radiation environment in the ISS. The tissue equivalent proportional counter (TEPC) is an instrument to measure the impact of radiation on the human tissue. KASI is developing a TEPC as a candidate payload of the ISS. Before the detailed design of the TEPC, we performed simulations to test whether our conceptual design of the TEPC will work propertly in the ISS and to predict its performance. The simulations estimated that the TEPC will measure the dose equivalent of about 1:1 mSv during a day in the ISS, which is consistent with previous measurements.

• 한국실내디자인학회논문집
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• 제19호
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• pp.128-135
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• 1999

In 1990s, the necessity of the Korean contemporary medium/small scale gallery as a place of experience rather than that of simple viewing has increased to meet from the requirements of the pluralistic and popularized society. The gallery makes efforts to form a collective street to cope with the influential of the power large scale cultural space as well as finding a novel direction in order to derive the regional sympathy in connection with the culture space of the neighborgood. In this paper, we study the 1990s Korean medium/small scale gallery in two aspects: First, the architectural techniques and elements which are introduces the audience to both interior and exterior spaces constructed by the 1990s gallery architecture, are investigated. The conventional architecture shows the blocking of the neighborhood and the trend of severance when viewing from both the architectural and the civil points. Secondly, we present the design characteristics from the several points of view such as conceptual, spacial, visual angles. The various trends of works in exhibition of the fine arts can provide a means for producing a great deal of variation in recent gallery architecture when viewing from a stage standpoint of exhibition space.

• 한국실내디자인학회논문집
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• 제24권6호
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• pp.38-46
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• 2015

The purpose of this study was to identify the research trend through content analysis of the previous researches on wayfinding issues in the field of spatial design in Korea. Total 91 research articles published in domestic academic journals from 1991 to 2015 were collected through the online search and analyzed using descriptive statistics. As conceptual framework for content analysis, research article publication year, academic field based on journal title, research methodology, target space for analysis, and type of research purpose were included. The major findings were as follows. Substantially, wayfinding research in Korea was begun in 1990s and was peaked in the latter half of 2010s. Healthcare facilities including hospitals and nursing homes were most frequently analyzed as target space, i.e., research subject. Majority of the researches analyzed were published in the diverse journals of design area. In many cases, qualitative research methods such as spatial construction analysis using Space Syntax, field study, observation, interview, etc were used by the researchers frequently. It was found that the majority of researchers focused on behavioral and psychological response of space users in the process of wayfinding. For further study, it is recommended to extend the scope of analysis to sign system which support effective wayfinding. In addition, foreign academic journal articles should be included for in-depth analysis.

• 한국실내디자인학회논문집
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• 제17권1호
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• pp.102-109
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• 2008

Recently, as emotional elements have been applied to many fields including marketing, architecture, and design, new understanding on and interest in sensibility are emerging. The sensibility, as opposite meaning to the reason, has been excluded from academic object, and researches in sensibility have been diversified for the meaning, scope, application methods and even application target of sensibility without consistency. This study aims to redefine meaning of sensibility by examining documents related to sensibility, and to examine the features of sensibility in design, especially in space design. Consequently, sensibility was defined to function as a filter which deals with numerous stimulative informations intuitively and uniformly while human gives significance to a stimulus. According to the examination on apparent features of sensibility and studies of sensibility engineering, the sensibility occurs not only by visual and physical stimulus but also by meaningful stimulus, and both are known to have mutual influence on each other. In space design, spaces of many purposes can be categorized into the spaces of routine and out of routine following the empirical time, and physical stimulus and interesting factor pursued by these spaces are inversely proportional. This study is meaningful insofar as it enabled to explain interaction between physical stimulus, meaning, and other factors within sensibility as a comprehensive concept by redefining its concept.

• 융합신호처리학회논문지
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• 제1권1호
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• pp.32-41
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• 2000

본 논문에서는 언어장애인용 문장발생장치의 통신율을 증진시키기 위한 처리방안으로 신경망을 이용하여 문장발생장치에 통사예측을 적용하는 방법을 제안하고 유용성을 확인하였다. 각 단어들은 구문론과 의미론에 따른 정보벡터로 표현되었으며 언어처리는 전통적으로 사전을 포함하는 방법과는 다르게 상태공간에서 다양한 영역으로 분류되어 개념적으로 유사한 단어는 상태공간에서의 위치를 통하여 알게 된다. 사용자가 의미심볼을 누르면 의미심볼에 해당하는 단어는 상태공간에서의 위치를 찾아가며 입력에 따른 동사예측의 중복성을 막기 위하여 신경망을 이용하여 클래스화한 후 동사를 예측하였고 그 결과 제한된 공간 내에서 약 $20\%$ 통신율 증진을 가져올 수 있었다.

• Journal of Positioning, Navigation, and Timing
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• 제9권4호
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• pp.327-336
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• 2020

This study presents signal availability of inter-operable global navigation satellite system (multi-GNSS) combined with future Korean Positioning System (KPS), specifically at geosynchronous orbit (GSO). The orbit of KPS, which is currently under conceptual feasibility study, is first introduced, and the grid points for evaluating space service volume (SSV) at GSO are generated. The signal observabilities are evaluated geometrically between those grid points and KPS/GNSS satellites. Then, analyzed are the visibility averaged over time/space and outage time to not access one or four signals. The reduction of maximum outage time induced by KPS are presented with different maximum off-boresight angles depending on L1/E1/B1 and L5/L3/E5a/B2 frequencies. Our numerical analysis shows that the SSV of multi-GNSS combined with KPS provides up to 7 additional signals and could provide continuous observation time (zero outage time) of more than four GNSS or KPS signals for 3.20-14.83% of SSV grid points at GSO. Especially at GSO above North/South America and Atlantic region, the introduction of KPS reduces the outage duration by up to 63 minutes with L1/E1/B1 frequency.

• 한국지역지리학회지
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• 제5권2호
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• pp.15-27
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• 1999

본 연구는 역동적이고 포괄적으로 지역을 이해하기 위한 개념적 틀을 수립하는 것이 목적이며, 이를 위해 공간, 시간, 사회/자연의 상호관계성에 대해서 논의를 하였다. 지역은 자연적 혹은 객관적으로 주어진 것이 아니라, 물리적 공간에 기반을 둔 사회적 인식과 실천에 의해 (재)생산될 뿐만 아니라, 사회를 변화시키는 능동적 요인으로 작용하는 관점으로 이해되어야 한다. 이러한 관점을 구체화시키기 위해 공간, 시간, 사회/자연의 상호관계성이 수립되어야 한다. 특히, 공간과 사회의 관계에 관한 이론을 수립하려는 다양한 사회이론은 역사, 사회적 관점에서 공간과 시간의 관계 그러고 사회와 자연의 관계에 대한 연구를 진전시키지 않았다. 공간, 시간, 사회/자연을 보다 중첩적으로 이해하기 위해 공간과 시간의 규모의 관계에 대한 이론적 연구가 필요하다.

• 한국조경학회지
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• 제23권4호
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• pp.40-49
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• 1996

The judgement of how good a memorial park is designed in terms of representing symbolic meanings through moonument depends on whether it decisively reflects peoples' common value and affection to specific event or place of the park. It is in fact, not easy to define the kind of value and affections peoples have in mind for the park. It is likely that most park design concepts are primarily based on designer' subjective view of the world by which the public is expected to understand, accept, and eventually share the common symbolic meanings of the park. AS memorial park design as the works of art might be appreciated not only in view of artistic performance of designer but in terms of its social meaning of the newly defined space. Two cases of park designs by author include issues on conceptual alternatives, experience of memorial space, symbolic use of materials, and perspectives on the direction of contemporary park design. It is noteworthy that authentic approaches should be challenged for a new way in which symbolic meanings could be given in rather contradictory style.

• 천문학논총
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• 제32권1호
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• pp.337-341
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• 2017

This paper reviews the requirements for far-infrared astronomy in the period following the SPICA satellite in the late 2020's. We take a very long view of the state of FIR astronomy and what facilities will be required in a twenty year timeframe. We show that spatial resolution to match that of observatories operating in the optical and mid-infrared and the radio will be a necessity. Moreover this high spatial resolution must be combined with high spectral and photometric sensitivity to provide the data required to further our understanding of planetary formation mechanisms, the history of star formation through cosmic time and the feedback between active galactic nuclei and their host galaxies in controlling star formation. We review three possible conceptual mission scenarios and comment on the possibility of realising them in the coming deades.

• 한국실내디자인학회논문집
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• 제14호
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• pp.74-81
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• 1998

It is character of Minimalism that representation as a simple shape extremely & objective acess that start from movement of visual art and part of music that began mainly at New York City in America at the end of 1960 period. Then in processing of development of Modernism Art it can be said that Minimalism reach the top of Modernism with that it carried out such character of formed Purity Doctrine of Modernism Art extremely and realized self-restorational character of Minimalism at the pictures that Minimalism is characterized by objectional clearness conceptual strictness reality and simplicity at the picture and by simplicity singularity uninterality and enviromentality at the sculpture. If we analyze Minimalic character in Interior design dividing into the density of space the principle of compound performance of touch and detail those are moderated and simple space simple and repeated compounding of geometrical line and shape the pure techniques of expression and the simplity of pure srtuctural -beauty in detail.