• Title/Summary/Keyword: Extension dimension

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An Urgent Problem and Challenge of Rural Healing Tourism (농촌 치유관광의 당면과제)

  • Kim, Kyung-Hee;Hwang, Dae-Yong
    • Journal of Agricultural Extension & Community Development
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    • v.26 no.2
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    • pp.69-84
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    • 2019
  • Recently rural healing tourism has been attracting tourists' interest in relieving mental stress and restoring physical daily life with nature-friendly experience. The purpose of this study is to explore the urgent problems and challenges of rural healing tourism by conducting focus group interview(FGI) with experts. Fourteen experts were interviewed with a semi-structured questionnaire. From the interview data, six themes were identified for direction of healing tourism development. The results of the study are as follows; The area of rural healing tourism can be explained within the framework of health tourism. As for the difference between rural tourism and healing tourism, rural tourism is expected to enhance physical and mental relaxation, daily restoration, and health promotion if rural tourism expects the understanding and experience of agricultural and rural life, and educational effect. The core components of rural healing tourism were operators' expertise, program with rurality, ecological environment, and storytelling. The findings of this paper implicate the underlying dimension of rural healing tourism from a experts' perspective.

Evaluation of the Quality of the Underground Dimension Stones -The Example of the Granite Quarry in the Geochang Area- (지하심부 석재자원의 품질평가 - 거창지역 화강암 석재석산의 예 -)

  • Hong, Sei Sun;Lee, Choon Oh;Lee, Jin Young;Kim, Yu Seong
    • The Journal of the Petrological Society of Korea
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    • v.24 no.3
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    • pp.233-252
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    • 2015
  • This research are systematic and scientific approaches to obtain the distribution, occurrence and quality of granite stone for building purposes. The process of dimension stone exploration must be carried out to know the underground potentiality of granitic body using the basic data collection and study, field mapping, detailed drilling survey, televiewer technique, and physical and chemical tests in the Geochang area. Televiewer data obtained in drilling boreholes can be accurately distinguished from the discontinuous face, strike and inclination, extension which is difficult to obtain in a core logging. 3D joint images will be helpful to establish a quarry exploitation plan because the 3D joint images give quite accurate information down to depth below the outcrop surface. Through the process of the quality estimation on the Geochang site, the proven reserve estimated as dimensional building stone are calculated with good quality in petrologic and physical properties.

Recent Advances in Multireference-Based Perturbation Theory

  • Nakano, Haruyuki;Hirao, Kimihiko
    • Bulletin of the Korean Chemical Society
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    • v.24 no.6
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    • pp.812-816
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    • 2003
  • Accurate ab initio computational chemistry has evolved dramatically. In particular, the development of multireference-based approaches has opened up a completely new area, and has had a profound impact on the potential of theoretical chemistry. Multireference-based perturbation theory (MRPT) is an extension of the closed-shell single reference Møller-Plesset method, and has been successfully applied to many chemical and spectroscopic problems. MRPT has established itself as an efficient technique for treating nondynamical and dynamical correlations. Usually, a complete active space self-consistent field (CASSCF) wave function is chosen as a reference function of MRPT. However, CASSCF often generates too many configurations, and the size of the active space can outgrow the capacity of the present technology. Many attempts have been proposed to reduce the dimension of CASSCF and to widen the range of applications of MRPT. This review focuses on our recent development in MRPT.

Evaluation of HOG-Family Features for Human Detection using PCA-SVM (PCA-SVM을 이용한 Human Detection을 위한 HOG-Family 특징 비교)

  • Setiawan, Nurul Arif;Lee, Chil-Woo
    • 한국HCI학회:학술대회논문집
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    • 2008.02a
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    • pp.504-509
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    • 2008
  • Support Vector Machine (SVM) is one of powerful learning machine and has been applied to varying task with generally acceptable performance. The success of SVM for classification tasks in one domain is affected by features which represent the instance of specific class. Given the representative and discriminative features, SVM learning will give good generalization and consequently we can obtain good classifier. In this paper, we will assess the problem of feature choices for human detection tasks and measure the performance of each feature. Here we will consider HOG-family feature. As a natural extension of SVM, we combine SVM with Principal Component Analysis (PCA) to reduce dimension of features while retaining most of discriminative feature vectors.

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A Study on the Immateriality in Contemporary Interior Space (현대 실내공간에서의 비물질적 특성에 관한 연구)

  • 신홍경;옥창수
    • Korean Institute of Interior Design Journal
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    • v.13 no.3
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    • pp.76-83
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    • 2004
  • Nowadays, our societies use digital technology in new architectural shape and space design to transcend three dimension limit so the boundary of the imagination world and actuality world has been collapsed. Traditional spatial value has been collapsed. Also indetermination and temporary assumption in time, fluidness and dematerialized, simultaneity and reiteration in image are relative with this circumstances. In architectural shape, media characteristics which secede from traditional characteristics of place tectonic value have occurred. Therefore, indifference and interests in shape, inter-permeation in interior and exterior space, homogeneous equivalence spatial extension have occurred. The purpose in this study examines dematerialized in contemporary space design and light materials and also investigates general and architectural background. The results of this study are as follows. First, circumstances of human have changed from physically limited boundary to unfixed, nonphysical, lightness and vague things. Second, casting off volume in shape and also dissembling exclusive and constructive Third, interior and exterior space by transparency intimates media possibility of information screen. Fourth, seek information and organic response, ambivalent transformation, accumulation of image and new mutual understanding system.

FINITENESS PROPERTIES OF EXTENSION FUNCTORS OF COFINITE MODULES

  • Irani, Yavar;Bahmanpour, Kamal
    • Bulletin of the Korean Mathematical Society
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    • v.50 no.2
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    • pp.649-657
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    • 2013
  • Let R be a commutative Noetherian ring, I an ideal of R and T be a non-zero I-cofinite R-module with dim(T) ${\leq}$ 1. In this paper, for any finitely generated R-module N with support in V(I), we show that the R-modules $Ext^i_R$(T,N) are finitely generated for all integers $i{\geq}0$. This immediately implies that if I has dimension one (i.e., dim R/I = 1), then $Ext^i_R$($H^j_I$(M), N) is finitely generated for all integers $i$, $j{\geq}0$, and all finitely generated R-modules M and N, with Supp(N) ${\subseteq}$ V(I).

SOLUTION TO ${\bar{\partial}}$-PROBLEM WITH SUPPORT CONDITIONS IN WEAKLY q-CONVEX DOMAINS

  • Saber, Sayed
    • Communications of the Korean Mathematical Society
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    • v.33 no.2
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    • pp.409-421
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    • 2018
  • Let X be a complex manifold of dimension n $n{\geqslant}2$ and let ${\Omega}{\Subset}X$ be a weakly q-convex domain with smooth boundary. Assume that E is a holomorphic line bundle over X and $E^{{\otimes}m}$ is the m-times tensor product of E for positive integer m. If there exists a strongly plurisubharmonic function on a neighborhood of $b{\Omega}$, then we solve the ${\bar{\partial}}$-problem with support condition in ${\Omega}$ for forms of type (r, s), $s{\geqslant}q$ with values in $E^{{\otimes}m}$. Moreover, the solvability of the ${\bar{\partial}}_b$-problem on boundaries of weakly q-convex domains with smooth boundary in $K{\ddot{a}}hler$ manifolds are given. Furthermore, we shall establish an extension theorem for the ${\bar{\partial}}_b$-closed forms.

EXTENSIONS OF DRINFELD MODULES OF RANK 2 BY THE CARLITZ MODULE

  • Woo, Sung-Sik
    • Bulletin of the Korean Mathematical Society
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    • v.32 no.2
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    • pp.251-257
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    • 1995
  • In the catagory of t-modules the Carlitz module C plays the role of $G_m$ in the category of group schemes. For a finite t-module G which corresponds to a finite group scheme, Taguchi [T] showed that Hom (G, C) is the "right" dual in the category of finite- t-modules which corresponds to the Cartier dual of a finite group scheme. In this paper we show that for Drinfeld modules (i.e., t-modules of dimension 1) of rank 2 there is a natural way of defining its dual by using the extension of drinfeld module by the Carlitz module which is in the same vein as defining the dual of an abelian varietiey by its $G_m$-extensions. Our results suggest that the extensions are the right objects to define the dual of arbitrary t-modules.t-modules.

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COMPLEX SUBMANIFOLDS IN REAL HYPERSURFACES

  • Han, Chong-Kyu;Tomassini, Giuseppe
    • Journal of the Korean Mathematical Society
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    • v.47 no.5
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    • pp.1001-1015
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    • 2010
  • Let M be a $C^{\infty}$ real hypersurface in $\mathbb{C}^{n+1}$, $n\;{\geq}\;1$, locally given as the zero locus of a $C^{\infty}$ real valued function r that is defined on a neighborhood of the reference point $P\;{\in}\;M$. For each k = 1,..., n we present a necessary and sufficient condition for there to exist a complex manifold of dimension k through P that is contained in M, assuming the Levi form has rank n - k at P. The problem is to find an integral manifold of the real 1-form $i{\partial}r$ on M whose tangent bundle is invariant under the complex structure tensor J. We present generalized versions of the Frobenius theorem and make use of them to prove the existence of complex submanifolds.

A Study On Prediction Of Three Dimensional Cutting Forces According To The Cutting Conditions (3차원 절삭가공시 절삭력 예측에 관한 연구)

  • 신근하
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 1995.03a
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    • pp.152-157
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    • 1995
  • In Turning It is good selection of cutting condition and cutting tools that influence upon the accuracy of dimension manufacturing efficiency and extension of tool life. Among them especially the identification of cutting force due to the change of cutting conditions which exerts a great influence on the turning is very important. In this study the cutting resistance due to the change of cutting conditions was caculated by using the energy method and good agreement in shown between theoritical and experimental results which were tested for the cutting resistance at the cemented carbide cutting tools with workpieces of SM20C and SM 45C.

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