• Title/Summary/Keyword: 자기집합체

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Bayesian analysis of directional conditionally autoregressive models (방향성 공간적 조건부 자기회귀 모형의 베이즈 분석 방법)

  • Kyung, Minjung
    • Journal of the Korean Data and Information Science Society
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    • v.27 no.5
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    • pp.1133-1146
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    • 2016
  • Counts or averages over arbitrary regions are often analyzed using conditionally autoregressive (CAR) models. The spatial neighborhoods within CAR model are generally formed using only the inter-distance or boundaries between the sub-regions. Kyung and Ghosh (2009) proposed a new class of models to accommodate spatial variations that may depend on directions, using different weights given to neighbors in different directions. The proposed model, directional conditionally autoregressive (DCAR) model, generalized the usual CAR model by accounting for spatial anisotropy. Bayesian inference method is discussed based on efficient Markov chain Monte Carlo (MCMC) sampling of the posterior distributions of the parameters. The method is illustrated using a data set of median property prices across Greater Glasgow, Scotland, in 2008.

The Utilization of Oleogels for Cosmetics (화장품에서의 올레오겔 이용)

  • Cho, Wan-Goo
    • Journal of the Korean Applied Science and Technology
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    • v.30 no.1
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    • pp.16-34
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    • 2013
  • Oleogels may be defined as lipophilic liquid and solid mixtures. The solid lipid materials (oleogelators) with less than 10 wt.% can entrap bulk liquid oil by ways of the formation of network of oleogelators in the bulk oil. The oelogelators can be grouped into two: self-assembly system and crystal particles system. This article reviewed recent work on the formation of oleogels using various types of oleogelators. The fundamental aspects of the formation of lipid network are discussed with a special emphasis on crystal particle based oleogels. The potential applications of oleogels for cosmetics are also described.

Explicit and Closed-form Expressions Describing Magnetic Behaviors of The First-Order Uniaxial Magnetic Materials (1차 비등방성 단자구 자성체의 자기행동을 기술하는 닫힌형태의 양함수들)

  • Hur, Jeen;Shin, Sung-Chul
    • Journal of the Korean Magnetics Society
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    • v.8 no.2
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    • pp.49-56
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    • 1998
  • Explicit and closed-form expressions describing magnetic behaviors of uniaxial magnetic materials are derived. Explicit and closed-form expressions for magnetic torque, magnetization orientation, and thier derivative functions with respect to the intensity and the orientation of an applied field. Those explicit expressions could give elegant mehtods of measuring magnetic anisotropy and saturation magnetization by the least squre fitting. In addition, on could use them to study the distribution function of magnetic propeties of a non-interacting magnetic aggregate.

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Directional conditionally autoregressive models (방향성을 고려한 공간적 조건부 자기회귀 모형)

  • Kyung, Minjung
    • The Korean Journal of Applied Statistics
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    • v.29 no.5
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    • pp.835-847
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    • 2016
  • To analyze lattice or areal data, a conditionally autoregressive (CAR) model has been widely used in the eld of spatial analysis. The spatial neighborhoods within CAR model are generally formed using only inter-distance or boundaries between regions. Kyung and Ghosh (2010) proposed a new class of models to accommodate spatial variations that may depend on directions. The proposed model, a directional conditionally autoregressive (DCAR) model, generalized the usual CAR model by accounting for spatial anisotropy. Properties of maximum likelihood estimators of a Gaussian DCAR are discussed. The method is illustrated using a data set of median property prices across Greater Glasgow, Scotland, in 2008.

Analysis of binary sequences generated by GMW sequences and No sequences (GMW 수열과 No 수열에 의해서 생성된 이진 수열 분석)

  • Cho, Sung-Jin;Yim, Ji-Mi
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.10
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    • pp.2181-2187
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    • 2011
  • In this paper, a family of binary sequences generated by GMW sequences and No sequences is introduced and analyzed. Each sequence within a family has period $N=2^n-1$, n=2m and there are $2^m$ sequences within that family. We obtain auto and cross-correlation values and linear span of the synthesized sequence.

New Cyclic Relative Difference Sets Constructed from d-Homogeneous Functions with Difference-balanced Property (차균형성질을 갖는 d-동차함수로부터 생성된 새로운 순회상대차집합)

  • 김상효;노종선
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.12 no.2
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    • pp.11-20
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    • 2002
  • In this paper, for many prime power q, it is shown that new cyclic relative difference sets with parameters (equation omitted) can be constructed by using d-homogeneous functions on $F_{q^{n}}${0} over $F_{q}$ with difference-balanced property, where $F_{q^{n} }$ is a finite field with $q^{n}$ elements. Several new cyclic relative difference sets with parameters (equation omitted) are constructed by using p-ary sequences of period $q^{n}$ -1 with ideal autocorrelation property introduced by Helleseth and Gong and d-form sequences.

Human Existence as a Hybrid Assemblage: the Possibilities and Limits of Intersectionality (하이브리드 집합체로서의 인간존재: 교차의 가능성과 한계)

  • Shon, HyangKoo
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.4
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    • pp.509-516
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    • 2024
  • We rethink human existence as a assemblage through intersectionality by comparing autopoiesis and sympoiesis systems with reference to science fiction protagonists such as Ghost in the Shell, Neuralink, Camille, a genetic hybrid, and San Ti against the background of neo-materialism. Our findings reveal that, first, radical sympoiesis is characterized by the dissolution of individuals and boundaries, and attempt to explain existence solely through heterogeneous linkage and fusion; second, by ignoring the capacity for autonomous thinking at the individual level, they are unable to fully recognize the destructive nature of hybrid co-production or to develop practical responses to it. Third, we suggest that if the very survival of humanity is threatened by heterogeneous linkage, we should pay more attention to our identity as autonomous members of a autopoietic system rather than to heterogeneous sympoietic networks and we should also pay attention to the role of individual units in stabilizing self-regulation. Through this study, we aimed to contribute to overcoming the limitations of neo-materialism by arguing that it is likely to fail to provide an adequate practical vision if it is limited to describing the hybrid connections that recur through the intersection of beings, and by urging us to define the identity of the human species from a new perspective by utilizing various SF stories that trigger the imagination of destructive interactions between beings, and to explore the autopoiesis in terms of symbiotic interactions based on a certain level of boundary and self-regulation.

We-Human -Being Together of the Lives (우리 - 사람 -생명들의 더불어 있음에 관해서)

  • Kim, Yeran
    • Korean journal of communication and information
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    • v.70
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    • pp.132-164
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    • 2015
  • The formation of knowledge of the people of Korean society is the social practices of collective subjectivity. Subjectivity is the truth of the self, which is incessantly created, questioned and modified in the milieu of self-reflection. In an attempt to examine the hermeneutics of the subject of Korean society, a conceptual framework is proposed, which, with the notion of life embedded, consists of a historical sequence of the popular, minjung, multitude, people and community. The period of 1960s saw the ambiguous mass of lifes floating, the individual with his/her own interior world of consciousness emerge. The ideological solidarity is formed in the the next two decades, in contestation with immediate and physical threatening such as poverty and dictatorship. The democratization of Korean society and the global expansion of neoliberal regime gave a re-birth of multitude and people which is characterized with their pursuit of the co-existence and co-realization of singularity and universality on the ethical principle of the open and communicative radicality.

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Synthesis of Ultrathin Polymer Films by Self Assembly (자기 집합에 의한 고분자 초박막의 합성)

  • Shin, Jae Sup
    • Applied Chemistry for Engineering
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    • v.7 no.6
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    • pp.1142-1146
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    • 1996
  • Cholesterol-containing surfactant was synthesized, and it was sonicated with monomer in water to form a vesicle solution. This vesicle solution was dried to construct a membrane which had a molecular multilayer structure. Using UV irradiation the monomer in this membrane were polymerized, and then surfactant was extracted by organic solvent. Using a X-ray diffractometer, the thickness of one layer and the regularity of the multilayer were measured. And scanning electron microscopy was conducted for fractured polymer film.

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