• 제목/요약/키워드: Patterns

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설계패턴의 효율적 분류와 관리 (Efficient Classification and Management of Design Patterns)

  • 한정수;김귀정
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2004년도 추계 종합학술대회 논문집
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    • pp.389-394
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    • 2004
  • 본 논문에서는 디자인 패턴을 분류하기 위해 패턴구조의 특성을 가지고 분류하였다. 그리고 클러스터링에 의한 분류는 패싯 분류에 의한 방법보다 높은 정확도를 보여주었다. 따라서 자동화된 분류방법인 클러스터링 알고리즘을 사용하여 디자인 패턴을 분류하는 것이 효과적이라 할 수 있다. 디자인 패턴의 분류는 검색 시 유사한 패턴들이 같은 카테고리에 저장이 되므로 유사패턴을 비교하여 사용할 수 있으며, 패턴 클러스터링에 의해 분류되고, 패턴의 링크정보를 이용하여 저장하므로 저장소를 효율적으로 관리할 수 있다.

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한국 생명공학산업의 기술혁신 패턴에 관한 연구 (A Comparative Study on the Patterns of Technological Innovation of Bio - Industry in Korea)

  • 박정민
    • 기술혁신학회지
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    • 제4권2호
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    • pp.224-241
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    • 2001
  • This paper is an inquiry into the patterns of technological innovation of bio - industry in Korea in comparison with the worldwide patterns. In another words, this study wants to check whether the patterns of technological innovation of bio - industry in Korea differ front those in advanced countries or not. The comparison is based on the theory of science - based industry asserted by Seol (2001) and Cho (2001). There are no specific difference in the patterns of technological innovation such as science - based innovation, capitalization of science, industries leading by scientific fields, the importance of venture firms for commercialization, high level of R&D expense to sales. Also the order of fields by size is similar to worldwide patterns. But the size of microbiology is bigger than that of worldwide patterns. The strength in microbiology may be the country specific features of Korea, like platform technology of Germany.

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ON NILPOTENCE INDICES OF SIGN PATTERNS

  • Erickson, Craig;Kim, In-Jae
    • 대한수학회논문집
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    • 제25권1호
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    • pp.11-18
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    • 2010
  • The work in this paper was motivated by [3], where Eschenbach and Li listed four 4 by 4 sign patterns, conjectured to be nilpotent sign patterns of nilpotence index at least 3. These sign patterns with no zero entries, called full sign patterns, are shown to be potentially nilpotent of nilpotence index 3. We also generalize these sign patterns of order 4 so that we provide classes of n by n sign patterns of nilpotence indices at least 3, if they are potentially nilpotent. Furthermore it is shown that if a full sign pattern A of order n has nilpotence index k with $2{\leq}k{\leq}n-1$, then sign pattern A has nilpotent realizations of nilpotence indices k, k + 1, $\ldots$, n. Hence, the four 4 by 4 sign patterns in [3, page 91] also allow nilpotent realizations of nilpotence index 4.

Powder Blasting을 이용한 도광판의 Micro-Pattern 가공기술 (Machining Technology of Micro-Patterns in LGP by Powder Blasting)

  • 박동삼;성은제;한진용;유우식
    • 소성∙가공
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    • 제15권9호
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    • pp.686-691
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    • 2006
  • Powder blasting technique was introduced to micromachine the micro patterns of circular and rectangular shape in LGP mould. The machinability of these patterns and matt treatment by powder blasting were verified. Then a prototype of LGP was injected by the developed LGP mould with micro patterns. Shape analysis of micro patterns and performance test of the injected LGP were carried out. The results showed printless LGP with micro patterns could be produced by just single injection using the mould with micro patterns, and powder blasting technique could be successfully applied to micrornachining of micro patterns and matt treatment of LGP mould.

유아복의 원형활용방안에 관한 연구 I (A Study of the Use of the Patterns of Children's Clothes)

  • 박정순
    • 대한가정학회지
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    • 제30권1호
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    • pp.67-86
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    • 1992
  • The author distributed the questionaires which ask the idea of the purchase of children's clothes in order to help the emotinal development of children and to raise demostic economy. 89% of those who answered realized the necessity of home sewing. Because of the lack of sewing ability(66%), the author made comparatively easy patterns such as blouses for summer, skirts, short pants and one-piece dresses. To populrize these patterns, the aother used the measurements of body-measurement which were made by Korea Institute of Standard. The author studied the patterns and choice of patterns according to growing body. The author tested the clothes worn and visual evaluation for fitness of the patterns. The results are as follows: First; The author developed basic pattern 1 and 2 and applied to design A, B and C. Second: For every design, the author made patterns fit to the children. Third: According to age, the author curtailed or enlarged patterns. Lastly: The author tried to reduce living expenses through making children's clothes using the sewing machine and supress over-consumption and lead the people toward normal economic life.

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아동기 애착에 관한 일 연구 (A Study of Children's Attachment to Their Mothers in middle Childhood)

  • 노명희
    • 대한가정학회지
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    • 제34권3호
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    • pp.35-46
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    • 1996
  • The purposes of this study were to investigate the children's attachment patterns and the effects of the family-related variables. The interview method was used to know the children's attachment patterns and the questionnaire was used to collect the family-related variables. The subjects were 272 elementary school children ranged 1st grade to 3rd grade in Kwangju. The results were as follows: 1. In the contexts of separation from mother, two major patterns of children's attachment appeared : patterns showed much anxious feeling but accepted the separation; patterns showed much anxious feeling and they rejected the separation. These two patterns were consisted in anxious feeling but inconsisted in responses. 2. Children showed significant differences in their attachment patterns to their mother's early attachment patterns to their mothers, maternal employment, SES of the family, and sex of the child were not found.

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Mining Spatio-Temporal Patterns in Trajectory Data

  • Kang, Ju-Young;Yong, Hwan-Seung
    • Journal of Information Processing Systems
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    • 제6권4호
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    • pp.521-536
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    • 2010
  • Spatio-temporal patterns extracted from historical trajectories of moving objects reveal important knowledge about movement behavior for high quality LBS services. Existing approaches transform trajectories into sequences of location symbols and derive frequent subsequences by applying conventional sequential pattern mining algorithms. However, spatio-temporal correlations may be lost due to the inappropriate approximations of spatial and temporal properties. In this paper, we address the problem of mining spatio-temporal patterns from trajectory data. The inefficient description of temporal information decreases the mining efficiency and the interpretability of the patterns. We provide a formal statement of efficient representation of spatio-temporal movements and propose a new approach to discover spatio-temporal patterns in trajectory data. The proposed method first finds meaningful spatio-temporal regions and extracts frequent spatio-temporal patterns based on a prefix-projection approach from the sequences of these regions. We experimentally analyze that the proposed method improves mining performance and derives more intuitive patterns.

해주반 판각의 조형분석에 관한 연구 (Study on formal analysis of carving boards in 'Haejuban')

  • 이유진;임승택
    • 한국가구학회지
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    • 제20권5호
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    • pp.414-430
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    • 2009
  • This paper is designed for the purpose of suggesting Figurative data applicable to modern furniture designs through doing research on Haejuban's engraving that includes excellent Figurative beauty among Korean traditional lighted-floor type furnitures. As a result of the analysis, Haejuban's(Traditional Korean dining table) engraving pattern type was mainly divided into independent patterns and combined patterns. The patterns expressed the most among them are peony patterns. The patterns expressed by the engraving mostly showed the Figurative characteristics of symmetry. The patterns shown in Haejuban's engraving wish or stand for richness, long life, lucky, fidelity, divinity, happiness, success and so on. The species of trees used for Haejuban were a total of 8 kinds such as ginkgo trees, zelkova trees, walnut trees, wild-walnut trees, chinaberry trees and other scrub trees. Ginkgo trees were used the most among them.

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성동구내 어린이집 어린이의 수면 및 식생활 실태와 성장과의 관련성에 대한 보고 (A Study on the Relations between Growth and the Current Conditions of the Day-care Center Children's Sleeping Patterns and Diet patterns in Seongdong-district)

  • 박유진;윤지연
    • 대한한방소아과학회지
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    • 제23권2호
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    • pp.159-177
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    • 2009
  • Objectives : The purpose of this study is to examine sleeping patterns and diet patterns of the children in day-care centers in Seongdong-district and to find out the relationships between those two patterns and children growth. Methods : 686 day-care center kids participated in the examination. We measured their heights and weights. We also conducted a questionnaire survey (of them) on their sleeping patterns and diet patterns. Based on the findings, we have analyzed correlations of the factors. Results : 1. We have interviewed 686 children in day-care centers in Seongdong-district. Substantial survey was conducted to 672(14 kids didn't go through regular medical checkups). Their age ranged from 4 months to 120 months and weights covered from 6.20 kg to 50.80 kg with the average of 16.97kg. Their height ranges were from 70.4cm to 140.6cm and the average was 100.76cm. 2. The survey results showed that birth-height affects children's current height. The results from the group of age over 25months and the group covering 2 to 6 years indicated that birth-height affected the current height as well. However, the result from the age group over 37 months showed that birth-height didn't relate to the current height. 3. Results from questionnaires on sleeping patterns indicate that children sleeping longer are taller than the other. Results of other questionnaires showed no substantial relations to height. 4. Results from questionnaires on diet patterns, cold food eating habit affects growth. Conclusions : According to the results above, sleeping patterns substantially affects the growth. In order to find out, however, the specific relations between them, further research would be necessary.

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학령기 비만아동의 치수 체계 정립 -서울지역 초등학생 $3{\sim}5$차년 남아 중심으로- (Establishment of Dimension System for Obese School Age Children - Focusing on 3-5 Grade Elementary School Boys in Seoul Metropolitan City -)

  • 김민정;박선경
    • 복식
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    • 제59권3호
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    • pp.67-81
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    • 2009
  • Body shape of a child in elementary school is distinguished by physical differences in the form of low weight, normal weight and obesity, which are influenced by various periodic environments. In particular, there are hardly any patterns for obese children in elementary school to choose. To this end, the purpose of this study is to supplement the problems with the production lines of the companies for children's patterns as well as an analysis on the physical characteristics of obese children and to suggest the patterns appropriate to obese children. This study employed obese children from the 3rd- to 5th-grade elementary school students whose number has been rapidly increasing and conducted a questionnaire regarding the draft of the patterns for obese children on their mothers and the makers of children's clothing. Based on the results, the study compared and analyzed ordinary children's patterns to the patterns in question by suggesting a dimension system for Korean obese children. The results are as follows. The obesity rate of the children in elementary school has been grown in significant numbers every year, whereas obese children's sense of self-identity and degree of satisfaction with their patterns appeared to be much lower than other ordinary children in the peer group; also, the satisfaction level their mothers with their children's patterns appeared to be low. In order to verify the degree of the children's satisfaction with their patterns, the study suggested a dimension system for the obese children and displayed appropriateness by comparing the children patterns from ordinary companies and the patterns in question.