• Title/Summary/Keyword: Scale-space

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A CHANGE OF SCALE FORMULA FOR WIENER INTEGRALS OF UNBOUNDED FUNCTIONS II

  • Yoo, Il;Song, Teuk-Seob;Kim, Byoung-Soo
    • Communications of the Korean Mathematical Society
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    • v.21 no.1
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    • pp.117-133
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    • 2006
  • Cameron and Storvick discovered change of scale formulas for Wiener integrals of bounded functions in a Banach algebra S of analytic Feynman integrable functions on classical Wiener space. Yoo and Skoug extended these results to abstract Wiener space for a generalized Fresnel class $F_{A1,A2}$ containing the Fresnel class F(B) which corresponds to the Banach algebra S on classical Wiener space. In this paper, we present a change of scale formula for Wiener integrals of various functions on $B^2$ which need not be bounded or continuous.

IMPROVEMENT OF RADIAL VELOCITY MEASUREMENT ACCURACY BY TELLURIC LINES (대기 흡수선을 이용한 시선속도 측정 정밀도 향상)

  • Han, In-Woo;Kim, Kang-Min;Kang, Dong-Il;Lee, Byeong-Cheol
    • Publications of The Korean Astronomical Society
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    • v.24 no.1
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    • pp.35-41
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    • 2009
  • We present a method to improve the RV (radial velocity) measurements accuracy by using telluric lines. Telluric lines are used to estimate the wavelength scale drift over the detector of the spectrograph. In the case of BOES, the Echelle spectrograph at BOAO (Bohyunsan Optical Astronomical Observatory), the wavelength scale drift can be several hundreds m/s over 24 hours. Due to the wavelength scale drift, the RV measurements accuracy of BOES is limited to several hundreds m/s. By estimating the wavelength scale drift by telluric lines, we can remove its effect to improve the RV measurements accuracy to about 40 m/s.

A Study on house Interior Space in Consideration of Disabled Person in Diminutive Symptoms - In the case of a Small Scale house space - (왜소증 장애인을 고려한 주거 실내공간에 관한 연구 - 소규모 주거공간을 중심으로 -)

  • 안설인;정재은
    • Korean Institute of Interior Design Journal
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    • v.13 no.2
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    • pp.133-141
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    • 2004
  • According to the increase in number of persons who have physical impediments in this country, the importance on the convenient facility for physically disabled persons is gradually being extended as well. This thesis is focused on the small scale interior design plan for the disabled persons in diminutive symptoms among several kinds of congenital or postnatal impediments. Just like the other disabled persons, the public convenient facility or special space is not required, but I have reviewed the matters to have to be improved and the present residing shape of the disabled persons under the diminutive symptoms in order to provide the interior design available for the joint uses together by and between non-handicapped and handicapped persons as such undersized persons have recently been differentiated together with handicapped persons within the small scale house space.

A Study on Type and Space Composition in the Small Scale and Multi-functional Housing - focused on the cases of the Tokyo area - (소규모·다기능 고령자주택의 공간구성과 유형에 관한 연구 - 일본 동경권 사례를 중심으로 -)

  • So, Kab-Soo
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.13 no.1
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    • pp.17-26
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    • 2007
  • Recently, the importance of the living environment for elderly people and its network is increasing. At the same time, the small-scale and multi-functional apartment house in which they can live is continuously required in Japan. For these reasons, it is appearing a new type of housing, Group-Living, where one lives together with others. It represents a way of communal living which is based on service at home. There are various problems such as felicity of each space, connections between the different areas, insufficiency of positioning on the aged welfare. Hence this research targets are grasp the present condition of Group-Living, to inquire the Space composition and types of it in Tokyo Area, and to suggest the direction of improvement of the small-scale and multi-functional apartment house for the aged.

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CHANGE OF SCALE FORMULAS FOR FUNCTION SPACE INTEGRALS RELATED WITH FOURIER-FEYNMAN TRANSFORM AND CONVOLUTION ON Ca,b[0, T]

  • Kim, Bong Jin;Kim, Byoung Soo;Yoo, Il
    • Korean Journal of Mathematics
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    • v.23 no.1
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    • pp.47-64
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    • 2015
  • We express generalized Fourier-Feynman transform and convolution product of functionals in a Banach algebra $\mathcal{S}(L^2_{a,b}[0,T])$ as limits of function space integrals on $C_{a,b}[0,T]$. Moreover we obtain change of scale formulas for function space integrals related with generalized Fourier-Feynman transform and convolution product of these functionals.

A Study on the Residents' Natural Tendencies of the Development of Floor Plans in the National Housing Scale$(85m^2)$ Condominium Remodeling (국민주택규모의 공동주택 리모델링 평면개발을 위한 거주자 성향 분석)

  • Choi, Jung-Min
    • Korean Institute of Interior Design Journal
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    • v.15 no.6 s.59
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    • pp.255-263
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    • 2006
  • This research analyze the demand of the residents against the public housing remodeling of national housing scale $(85m^2)$, focusing on residents and their tendencies within their dwelling spaces. The analysis determines the most appropriate patterns and spatial connections within the floor plan. The result includes that there are two types of the classification into an urban oriented propensity (45%), 'The center of city, the apartment and the convenience' etc, and a rural oriented propensity (55%), 'The pastoral, the house and the circumstance' etc, based on their lifestyle values. Also there are three interior propensity classifications, those tending to warm and sensitive variable space (42%), western and gorgeous dynamic space (34%) and oriental and popular static space (24%). The research illustrated the residents' desired space planning options, based on the analysis of the residents' preference patterns which is various.

Cosmological Information from the Small-scale Redshift Space Distortions

  • Tonegawa, Motonari;Park, Changbom;Zheng, Yi;Park, Hyunbae;Hong, Sungwook
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.41.3-42
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    • 2018
  • Redshift space distortion (RSD) is known as a powerful cosmological probe. The large-scale RSD has been detected by various redshift surveys and continues to be a major target of ongoing surveys. On the other hand, the small-scale RSD, called finger-of-god (FoG) effect, also has cosmological information, because different cosmological parameters cause different halo mass functions and viriarized velocities. We define the "length" of FoG and examine its dependence on cosmological parameters using the Multiverse simulation. We also use the SDSS DR7 data to see how strong constraints current data sets could provide. It is found that the volume-limited subsample D5, consisting of ~100,000 galaxies at z~0.08, yields $\Delta \Omega_m ~ 0.02$.

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The Experimental Study of Fire Properties in Reduced-scale Atrium Space (아트리움 공간에서의 화재성상에 관한 축소모델 실험연구)

  • 류승관;김충익;유홍선
    • Fire Science and Engineering
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    • v.13 no.4
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    • pp.30-37
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    • 1999
  • In this study, reduced-scale experiments as the alternative to a real-scale fire test were conducted to understand fire properties in atrium space. The scaling laws were derived from $\pi$-parameters which were deduced by dimensional analysis of governing equations (continuity, conservation of momentum and conservation energy). The 1/50 scale experiment simulated the real-scale fire test in SIVANS atrium at Japan were conducted under the scaling laws. And this results were compared with real-scale experiment results. Furthermore these results were visualized by video recording system using laser light sheet.

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Scale Invariant Target Detection using the Laplacian Scale-Space with Adaptive Threshold (라플라스 스케일스페이스 이론과 적응 문턱치를 이용한 크기 불변 표적 탐지 기법)

  • Kim, Sung-Ho;Yang, Yu-Kyung
    • Journal of the Korea Institute of Military Science and Technology
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    • v.11 no.1
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    • pp.66-74
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    • 2008
  • This paper presents a new small target detection method using scale invariant feature. Detecting small targets whose sizes are varying is very important to automatic target detection. Scale invariant feature using the Laplacian scale-space can detect different sizes of targets robustly compared to the conventional spatial filtering methods with fixed kernel size. Additionally, scale-reflected adaptive thresholding can reduce many false alarms. Experimental results with real IR images show the robustness of the proposed target detection in real world.

Effects of multiple driving scales on incompressible turbulence

  • Yoo, Hyun-Ju;Cho, Jung-Yeon
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.1
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    • pp.75.2-75.2
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    • 2012
  • Turbulence is ubiquitous in astrophysical fluids such as the interstellar medium and intracluster medium. To maintain turbulent motion, energy must be injected into the fluids. In turbulence studies, it is customary to assume that the fluid is driven on a scale, but there can be many different driving mechanisms that act on different scales in astrophysical fluids. We expect different statistical properties of turbulence between turbulence with single driving scale and turbulence with double driving scales. In this work, we perform 3-dimensional incompressible MHD turbulence simulations with energy injection in two ranges, 2${\surd}$12 (large scale) and 15

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