• 교육시설 논문지
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• 제26권6호
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• pp.39-49
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• 2019

School is where students spend a lot of time. However, it is made up spaces which have got no consideration for students. Public buildings, such as schools, were designed by experts, not by users, while the opinions of users were reflected in a small part. As a result, school has become an uncomfortable place for students. User participation design has been proposed as a way to improve it. Recently, in designing schools, user participation design called "School Space Innovation Project" has been carried out actively and many kinds of guidelines have been suggested in project. But because it is unsystematic, In fact, it is hard to apply on site. Comparing and analyzing various User Participation Processes to figure out the similarities and differences is the purpose of this research and we want to suggest the result as a data that can be used as guidelines for project related to User Participation Design.

• 한국항공우주학회지
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• 제34권2호
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• pp.48-55
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• 2006

본 논문에서는 실시간 동적 차분 위성항법과 관련하여 근래에 제안된 위치영역 Hatch 필터의 오차 특성을 해석하였다. 위치영역 Hatch 필터에 의하여 생성되는 잉여값 순열 (residual sequence)이 고장검출에 유용한 백색잡음 (white noise) 특성을 가짐을 보였으며, 위치영역 Hatch 필터는 기존에 알려진 위치영역 Kalman 형 필터에 비하여 전 상태 추정치 (a priori state estimate) 의 정확도 면에서 오히려 더 우수함을 해석적으로 보였다. 이와 같은 특성에 의하면 차분 위성항법의 다양한 응용분야에서 위치영역 Hatch 필터가 고장검출 및 정밀측위에 효율적으로 사용될 수 있음을 알 수 있다.

• 천문학논총
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• 제32권1호
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• pp.271-273
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• 2017

The AKARI North Ecliptic Pole Deep Field is a natural location to accomplish deep extragalactic surveys. It is supported by comprehensive ancillary data extending from radio to X-ray wavelengths, which have been used to classify radio sources as radio-loud and radio-quiet objects and to create a catalogue of Active Galactic Nuclei (AGN). This has been achieved by using a radio-optical classification and colour-colour diagrams rather than the more usual way based on spectroscopy Furthermore, we explore whether this technique can be extended by using a far-Infrared (FIR) colour-colour diagram which has been used to identify 268 high redshift candidates.

• ETRI Journal
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• 제17권4호
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• pp.25-35
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• 1996

This paper derives the symbol error probability for quadrature amplitude modulation(QAM) with L-fold space diversity in Rayleigh fading channels. Two combining techniques, maximal ratio combining(MRC) and selection combining(SC), are considered. The formula for MRC space diversity is obtained by averaging the symbol error probability of M-ary QAM in an additive white Gaussian noise(AWGN) channel over a chi-square distribution with 2L degrees of freedom. The obtained formula overcomes the limitations of the earlier work, which has been limited only to deriving the symbol error rate(SER) of QAM with two branch MRC space diversity. The formula for SC space diversity is obtained by averaging the symbol error probability of M-ary QAM in an AWGN channel over the distribution of the maximum signal-to noise ratio among all of the diversity channels for SC space diversity has been reported yet. Analytical results show that the probability of error decreases with the order of diversity gain per additional branch decreases as the number of branches becomes larger. On the other hand, the performance of 16 QAM with MRC becomes much better than that of SC as the number of branches becomes larger. By giving the order of diversity, L, and the number of signal points, M, we have been able to obtain the SER performance of QAM with general space diversity. These results can be used to determine the order of diversity to achieve the desired SER in land mobile communication system employing QAM modulation.

• 한국식생활문화학회지
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• 제19권2호
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• pp.139-149
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• 2004

The age of Queen Victoria, so called nearly 64 years from 1837 to 1901 that Queen Victoria was on the throne. It was the time that ceramicwares and silverwares were mass-produced thanks to the Industrial Revolution and then diverse directions of dining space could be possible in middle class. At the same time, it was the time that the production of bone china, which is main current in modem times, became established, ironstone china began to be developed, and white ceramic wares were accomplished. In addition, factors for the direction of dining space were mass-produced and Gothic style, Classic style, Majolica style, Renaissance, and Neo-rococo style had come back into fashion. Therefore, diverse designs coexisted and had great effect on dining space in this times. This study purposed to establish the decoration theory of dining space following historic flow through researching the designs and the direct factors for dining space in the age of Queen Victoria.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권8호
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• pp.1894-1912
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• 2012

This paper proposes a system called Wireless Link based on Global Communication Channel (WLGCC) to enhance the spectrum sharing between digital broadcasting (DB) services and the cognitive radio (CR) system in the licensed band of 470-790 MHz. The WLGCC aims to enhance the spectrum sensing and geolocation database (GLD) spectrum sharing methods in the CR system. Spectrum sensing can be enhanced by receiving the status of the used frequencies from the WLGCC, thereby eliminating the need for a low detection threshold (i.e., avoiding the hidden node problem). In addition, the GLD can be enhanced by providing a reliable communication link between the database and the CR device in the form of an unused TV white space that is reserved as the proposed Global Communication Channel (GCC). This paper analyzes the coexistence of the new WLGCC system and the DB service in terms of avoiding additional interference. Specifically, we mathematically determine the WLGCC parameters, such as the in-band and out-of-band power levels, and operation coverage, and verify them using Monte Carlo simulation. The results show that WLGCC does not degrade the existing DB service and reliably transmits information of the vacant (or used) frequency bands to the CR.

• 한국ITS학회 논문지
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• 제9권3호
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• pp.51-58
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• 2010

제한된 주파수 자원을 효율적으로 사용하고 주파수 부족현상을 완화시키기 위해 제안된 무선인지 시스템은 면허 사용자가 사용하지 않는 유휴 주파수를 비 면허 사용자가 임시적으로 사용하도록 하는 시스템으로서 주변의 상황을 탐색하고 변화된 상황에 시스템을 적절하게 적용하도록 하는 지능적인 차세대 무선통신 시스템이며, 현재 FCC에서 TV white spaces를 대상으로 제한적으로 무선인지 시스템기술을 적용하기로 하고 관련 규정을 개정하였다. 본 논문에서는 무선인지 시스템의 스펙트럼 센싱의 성능을 Okumura-Hata 채널모델기반의 환경에서 여러 가지 방법으로 비교 분석 하였다. 이동통신 시스템의 무선 전송은 대게 불규칙한 지형에서 일어나게 되는데 개개의 지역의 지형 윤곽은 경로 손실 추정을 위해 고려되어야 한다. 무선인지 시스템에서의 무선신호 전송에서 개개의 수신지점이나 특정지역에서 수신된 신호에 따라서 면허 사용자의 검출 성능이 달라진다. 그러므로 다양한 성능분석을 위해서 본 논문에서는 수신신호의 신호 대 잡음비에 따른 검출 성능 분석 및 비면허 사용자의 위치에 따른 검출확률을 모의 실험을 통하여 스펙트럼 센싱의 성능을 나타내고자 한다.

• 한국조리학회지
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• 제15권3호
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• pp.29-41
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• 2009

본 연구는 푸드 스타일링 잡지에 제시된 식공간 연출 사진의 내용 분석과 실제 레스토랑에서 사용하고 있는 식공간 구성 요소인 식기와 고명을 색채와 재질로 나누어 비교 분석하였다. 식공간 연출 1,357사진은 국내 잡지인 "쿠켄"과 "행복이 가득한 집"에서 선정하였고, 레스토랑은 서울 지역 84군데를 선정하여 직접 방문 조사하였다. 그 결과는 다음과 같았다. 첫째, 식기 재질의분석 결과, 고가 레스토랑과 식공간 연출가의 트랜드는 일치 즉, 백자를 가장 선호하였으며, 저가 레스토랑은 플라스틱 식기 사용이 높은 것으로 나타내었다. 둘째, 식기의 색채로는 청결을 상징하는 흰색이 가장 선호되고 있었다. 음식을 무난하게 소화하고 돋보이게 하는 고급 흰색 도자기가 많이 사용되고 있었으며, 저가 레스토랑에서 흰색 플라스틱의 사용이 일반화되어 있음을 알 수 있었다. 셋째, 음식 고명으로는 녹색 계열이 가장 많이 사용되고 있었고, 식공간 연출가들은 적색과 녹색의 보색 대비 고명도 많이 제시하고 있었다. 고가 레스토랑에서는 오방색 고명을 이용하는 경우도 많았다.

• 천문학논총
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• 제30권2호
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• pp.265-266
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• 2015

A search for luminous white dwarfs (WDs) in several nearby Galactic globular clusters (GCs) was carried out using the deep and homogeneous photometric catalog of Galactic GCs taken with the ACS/WFC aboard the Hubble Space Telescope (HST) by Sarajedini et al. and Anderson et al- It resulted in the identification of luminous WD candidates in the GCs M13 (NGC 6205) and M22 (NGC 6656). The purpose of the present study is to identify luminous WDs in the deep and homogeneous V versus V - I color-magnitude diagrams (CMDs) of several nearby Galactic GCs taken with the ACS/WFC aboard the HST. Using photometric data for the GCs M13 and M22 that are now in the public domain, the V versus V - I CMDs of the GCs M13 and M22 were constructed. Many spurious detections in the CMDs were removed using the photometric quality parameters qfit(V) and qfit(I), and a radial restriction was applied to the CMDs to remove the central stars with higher photometric errors due to central crowding. From each resultant V versus V - I CMD of the GCs M13 and M22, a dozen or so luminous WD candidates were identified. They were confirmed as stellar objects in the accompanying ACS/WFC images and their positions in the CMDs were in the bright part of the DA WD cooling curve. Therefore, the luminous WD candidates in the GCs M13 and M22 seem to be true luminous WDs, and spectroscopic observations are needed to confirm their true identity.

• 영어영문학
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• 제58권4호
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• pp.701-721
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• 2012

This paper aims to revisit William Faulkner's Absalom, Absalom! by focusing on the corporeal body and its role in dismantling the Southern ideology of white patriarchy. The latter, which is represented by Thomas Sutpen and his attempt to establish a white male dynasty, is a symbolic space in which the corporeal body turns into a symbolic one through the process of inscribing social ideologies on it. However, this symbolic space is also a contending site between the two bodies. The symbolic body of Sutpen cannot entirely erase its corporeal traces, and therefore the corporeal body, which is buried but nonetheless existent, threatens to undermine rules and premises of the symbolic order. Given that, this paper approaches Faulkner's critique of the Southern white patriarchal ideology from the tension that the corporeal body and the symbolic body create. The 'flesh' roughly corresponds to racial and sexual otherness, namely black flesh and the homoerotic desire of male body. Although they-as the matter of race and that of gender - function in different levels of signification, they still share a common purpose in revealing the logical paradox within Sutpen's symbolic order. The idea of pure whiteness that Sutpen subscribes to is a concept that prerequisites the existence of blackness. Likewise, his idea of male homosociality based upon patriarchal legacy stands precariously on the verge of disintegrating into homoetoricism. As internal otherness that Sutpen's symbolic order cannot fully incorporate, the corporeal body functions to indicate the limitation of Sutpen's Design and its body-signification process.