• 제목/요약/키워드: Partition structure

검색결과 214건 처리시간 0.027초

A Restricted Partition Method to Detect Single Nucleotide Polymorphisms for a Carcass Trait in Hanwoo

  • Lee, Ji-Hong;Kim, Dong-Chul;Kim, Jong-Joo;Lee, Jea-Young
    • Asian-Australasian Journal of Animal Sciences
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    • 제24권11호
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    • pp.1525-1528
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    • 2011
  • The purpose of this study was to detect SNPs that were responsible for a carcass trait in Hanwoo populations. A non-parametric model applying a restricted partition method (RPM) was used, which exploited a partitioning algorithm considering statistical criteria for multiple comparison testing. Phenotypic and genotypic data were obtained from the Hanwoo Improvement Center, National Agricultural Cooperation Federation, Korea, in which the pedigree structure comprised 229 steers from 16 paternal half-sib proven sires that were born in Namwon or Daegwanryong livestock testing station between spring of 2002 and fall of 2003. A carcass trait, longissimus dorsi muscle area for each steer was measured after slaughter at approximately 722 days. Three SNPs (19_1, 18_4 and 28_2) near the microsatellite marker ILSTS035 on BTA6, around which the quantitative trait loci (QTL) for meat quality were previously detected, were used in this study. The RPM analyses resulted in two significant interaction effects between SNPs (19_1 and 18_4) and (19_1 and 28_2) at ${\alpha}$ = 0.05 level. However, under a general linear (parametric) model no interaction effect between any pair of the three SNPs was detected, while only one main effect for SNP19_1 was found for the trait. Also, under another non-parametric model using a multifactor dimensionality reduction (MDR) method, only one interaction effect of the two SNPs (19_1 and 28_2) explained the trait significantly better than the parametric model with the main effect of SNP19_1. Our results suggest that RPM is a good alternative to model choices that can find associations of the interaction effects of multiple SNPs for quantitative traits in livestock species.

빌라 사보아의 재료 패턴 및 색채 사용 연구 (A Study on the Usage of the Color and the Pattern of Materials in Villa Savoye)

  • 김소희
    • 한국실내디자인학회논문집
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    • 제17권5호
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    • pp.133-140
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    • 2008
  • This study is purposed to understand the usage of the color and the material pattern in detail and to apply for interior architecture. Many documents have prescribed the color and the pattern at random. While the usage of the color and the materials was ignored rather than architectural form, the importance of the color and the materials stands out in modern interior space. The villa, the weekend home of the Savoye family, was built between 1928 and 1931. Particularly, the villa Savoye was focused for this study. Le Corbusier viewed case pieces for storage and wall partition for division as architecture, and he units furniture and architecture by developing partition that could be painted either the wall color to become part of the wall or in contrasting colors to stand out as wall partition. He loved white and lie believed in using it for interiors, but noted that it should also be balanced with a wall related polychromy. Color became an integral part of white structure of the villa savoye that was raised on stilt with an exterior wall at the base painted green as a visual connection with the lawn. Color was used architecturally in the interior as well, with white walls interrupted by planes of pink, blue and red ocher and it gives the space an unexpected playfulness with tile color of the finishing materials. the various usage of the color and material patterns constitute an element of great architectural richness. They have a unique principle based on emotional order and make the man move to another space and experience the spacial connection.

비선형 공정에서의 입력 공간 분할에 의한 퍼지 추론 시스템의 특성 분석 (Characteristics of Fuzzy Inference Systems by Means of Partition of Input Spaces in Nonlinear Process)

  • 박건준;이동윤
    • 한국콘텐츠학회논문지
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    • 제11권3호
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    • pp.48-55
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    • 2011
  • 본 논문은 비선형 공정의 퍼지 모델을 동정하기 위해 전체 입력의 공간 분할 및 퍼지 추론 방법에 따른 퍼지 추론 시스템의 입출력 특성을 분석하며, 퍼지 모델의 입력 변수와 퍼지 입력 공간 분할 및 후반부 다항식 함수에 의한 구조 동정과 파라미터 동정을 통해 비선형 공정을 표현한다. 퍼지 규칙에서 전반부 파라미터의 동정에는 입출력 데이터의 최소 값과 최대 값을 이용하는 최소-최대 방법 및 입출력 데이터를 군집으로 형성하는 C-Means 클러스터링 알고리즘을 사용하여 입력 공간을 분할한다. 또한 전반부 멤버쉽 함수는 삼각형 멤버쉽 함수를 사용하여 입력 공간을 형성한다. 후반부 동정에서 퍼지 추론 방법은 간략 추론 및 선형 추론에 의해 시스템을 표현한다. 또한, 각 규칙의 후반부 파라미터들, 즉 후반부 다항식의 계수를 동정하기 위해 표준 최소자승법을 사용한다. 마지막으로, 비선형 공정으로는 널리 이용되는 가스로 데이터를 사용하며 이 공정에 대해 성능을 평가한다.

A Multiple Model Approach to Fuzzy Modeling and Control of Nonlinear Systems

  • Lee, Chul-Heui;Seo, Seon-Hak;Ha, Young-Ki
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1998년도 The Third Asian Fuzzy Systems Symposium
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    • pp.453-458
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    • 1998
  • In this paper, a new approach to modeling of nonlinear systems using fuzzy theory is presented. So as to handle a variety of nonlinearity and reflect the degree of confidence in the informations about system, we combine multiple model method with hierarchical prioritized structure. The mountain clustering technique is used in partition of system, and TSK rule structure is adopted to form the fuzzy rules. Back propagation algorithm is used for learning parameters in the rules. Computer simulations are performed to verify the effectiveness of the proposed method. It is useful for the treatment fo the nonlinear system of which the quantitative math-approach is difficult.

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이성분 액체 혼합물의 통계열역학적 연구 (Transient State Theory of Significant Liquid Structure applied to Binary Mixture, Benzene-Cyclohexane)

  • 안운선
    • 대한화학회지
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    • 제10권3호
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    • pp.136-142
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    • 1966
  • 벤젠-시클로핵산 이성분 용액에다 Transient State Theory of Significant Liquid Structure를 확장 적용시켰다. 상태함을 구하고 이것으로부터 계의 전체압, 부분압, 몰부피 그리고 과량의 엔트로피와 같은 열역학적 양을 $303.15^{\circ},\;\313.15^{\circ}$$343.15^{\circ}K$에서 계산하였다. 이와 같이 구한 계산치들은 실측치와 대단히 잘 맞았다.

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할로겐화 메틸의 액체구조와 성질 (Significant Structure of Liquid Methyl Halides)

  • 이해방;장세헌
    • 대한화학회지
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    • 제9권4호
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    • pp.211-214
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    • 1965
  • H.Eyring과 그의 공동 연구자들이 발전시킨 액체이론$^{(1-3)}$에 따라서 할로겐화 메틸의 분배함수를 구하였으며 이에 포함된 parameters은 장세헌과 그의 공동 연구자들이 개정한 방법$^{(4)}$에 따라서 구하였다. 이 분배함수로부터 여러가지 열역학적 양들을 계산하여 실험치와 비교하여 본 결과 매우 잘 맞었다.

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A Clustered Dwarf Structure to Speed up Queries on Data Cubes

  • Bao, Yubin;Leng, Fangling;Wang, Daling;Yu, Ge
    • Journal of Computing Science and Engineering
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    • 제1권2호
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    • pp.195-210
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    • 2007
  • Dwarf is a highly compressed structure, which compresses the cube by eliminating the semantic redundancies while computing a data cube. Although it has high compression ratio, Dwarf is slower in querying and more difficult in updating due to its structure characteristics. We all know that the original intention of data cube is to speed up the query performance, so we propose two novel clustering methods for query optimization: the recursion clustering method which clusters the nodes in a recursive manner to speed up point queries and the hierarchical clustering method which clusters the nodes of the same dimension to speed up range queries. To facilitate the implementation, we design a partition strategy and a logical clustering mechanism. Experimental results show our methods can effectively improve the query performance on data cubes, and the recursion clustering method is suitable for both point queries and range queries.

조적채움벽 골조의 내진성능평가를 위한 등가 스트럿 모델의 비교연구 (A Comparison Study of Equivalent Strut Models for Seismic Performance Evaluation of Masonry-Infilled Frame)

  • 유은종;김민재;정대계
    • 한국지진공학회논문집
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    • 제18권2호
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    • pp.79-87
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    • 2014
  • Masonry-infilled walls have been used in reinforced concrete(RC) frame structures as interior and exterior partition walls. Since these walls are considered as nonstructural elements, they were only considered as additional mass. However, infill walls tend to interact with the structure's overall strength, rigidity, and energy dissipation. Infill walls have been analyzed by finite element method or transposed as equivalent strut model. The equivalent strut model is a typical method to evaluate masonry-infilled structure to avoid the burden of complex finite element model. This study compares different strut models to identify their properties and applicability with regard to the characteristics of the structure and various material models.

Flexible multimode pressure sensor based on liquid metal

  • Zhou, Xiaoping;Yu, Zihao
    • Smart Structures and Systems
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    • 제28권6호
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    • pp.839-853
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    • 2021
  • In this paper, a novel multimode liquid metal-based pressure sensor is developed. The main body of the sensor is composed of polydimethylsiloxane (PDMS) elastomer. The structure of the sensor looks like a sandwich, in which the upper structure contains a cylindrical cavity, and the bottom structure contains a spiral microchannel, and the middle partition layer separates the upper and the bottom structures. Then, the liquid metal is injected into the top cavity and the bottom microchannel. Based on linear elastic fracture mechanics, the deformation of the microchannel cross-section is theoretically analyzed. The changes of resistance, capacitance, and inductance of the microchannel under pressure are deduced, and the corresponding theoretical models are established. The theoretical values of the pressure sensor are in good agreement with experimental data, implying that the developed theoretical model can explain the performance of the sensor well.

A Chemical Component of the Marine Alga Ishige Okamurae

  • Kim, Eun-Sook;Choi, Byoung-Wook;Lee, Bong-Ho
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.255.3-256
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    • 2003
  • Marine Algae of order Chordariales are rich resources of bioactive metabolites. Methanolic extracts of the brown alga /shige Okamurae exhibited potent antioxidative and butyrylcholinesterase(BChE) inhibitory effects. Bio-guided purification [solvent partition, ODS flash, silica flash, gel-filtration on Sephadex LH 20, ODS HPLC] of them gave a compound 1. Its structure was elucidated by detailed analysis of spectroscopic data of 1 and comparison of literature data. A variety of bioassay for 1 is in progress.

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