• 제목/요약/키워드: subject-cluster

검색결과 161건 처리시간 0.022초

공동주택의 소음 저감재 설치로 인한 바닥 충격음에 관한 연구 (A Study on Floor Impact Sound due to Resilient Materials in Apartment Buildings)

  • 김병길;김수련;곽규성;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2004년도 학술.기술논문발표회
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    • pp.5-10
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    • 2004
  • Apartment Buildings have particularity to cluster together, especially, floor is close to resident, it is subject to dissatisfaction about impact noise between up and down floors. However, we require standard for counterplan to reduce the impact noise of floor. In point of fact, it difficult to objective evaluate for performance sound insulation that not physical sound volume but orignal form, means and effect of sound caused to complex noise in apartment house. Unique type of dwelling and structure pattern cause to noise of floor impact which is established by law for standard regulation. It is object to analysis and compare the result of performance sound insulation of upper floor impact and sample construct the subject resilient material of sound insulator

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A Pattern Summary System Using BLAST for Sequence Analysis

  • Choi, Han-Suk;Kim, Dong-Wook;Ryu, Tae-W.
    • Genomics & Informatics
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    • 제4권4호
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    • pp.173-181
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    • 2006
  • Pattern finding is one of the important tasks in a protein or DNA sequence analysis. Alignment is the widely used technique for finding patterns in sequence analysis. BLAST (Basic Local Alignment Search Tool) is one of the most popularly used tools in bio-informatics to explore available DNA or protein sequence databases. BLAST may generate a huge output for a large sequence data that contains various sequence patterns. However, BLAST does not provide a tool to summarize and analyze the patterns or matched alignments in the BLAST output file. BLAST lacks of general and robust parsing tools to extract the essential information out from its output. This paper presents a pattern summary system which is a powerful and comprehensive tool for discovering pattern structures in huge amount of sequence data in the BLAST. The pattern summary system can identify clusters of patterns, extract the cluster pattern sequences from the subject database of BLAST, and display the clusters graphically to show the distribution of clusters in the subject database.

문헌의 자동분류를 위한 판별분류 시스템 설계 (A Study on Design of Discriminant Classification System for the Automatic Classification of Documents)

  • 김현희;이용례
    • 한국문헌정보학회지
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    • 제18권
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    • pp.129-155
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    • 1990
  • This study suggests two hypotheses and verifies them. First hypothesis is that discriminant analysis which is a statistical technique can be used to classify documents on the subject of organic chemistry by nine subareas. Second hypothesis is that discriminant analysis is superior to cluster analysis in classifing objects by fixed categories.

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공공데이터 포털을 통해 개방된 도서관 관련 데이터 분석 (A Study about Library-Related Open Data through Public Data Portals)

  • 조재인
    • 한국비블리아학회지
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    • 제29권2호
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    • pp.35-56
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    • 2018
  • 본 연구는 공공데이터 포털을 통해 개방된 도서관 관련 데이터의 현황을 다각도로 살펴보며, 공개된 데이터의 수준과 공개 주체에 따라 데이터의 활용 정도에 어떠한 차이가 나타나는지 분석하였다. 또한 데이터의 공개주체를 지방자치단체와 국가 및 공공기관으로 구분하여 데이터에 부여된 키워드를 활용해 PathFinder Network 분석을 수행함으로써 양 주체가 공개한 데이터의 주제 군집과 중심성에 어떠한 차이를 보이는지 분석하였다. 그 결과 국가 및 공공기관이 공개한 데이터로부터는 연구자료 등을 중심으로 4개의 주제군집이, 지방자치단체가 공개한 데이터로부터는 소장자료, 평생교육프로그램 등을 중심으로 8개의 주제 군집이 형성되었으며, 국가 및 공공기관이 공개한 데이터가 학교 및 공공도서관의 단순 현황을 주로 공개하고 있는 지방자치단체 공개 데이터보다 높은 활용도를 나타냈다.

저자서지결합분석에 의한 문헌정보학의 지적구조 분석에 관한 연구 (A Study on the Intellectual Structure of Library and Information Science in Korea by Author Bibliographic Coupling Analysis)

  • 박지연;정동열
    • 정보관리학회지
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    • 제30권4호
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    • pp.31-59
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    • 2013
  • 본 연구는 저자서지결합분석을 사용하여 한국 문헌정보학의 1990년대와 2000년대 지적구조와 그 변화를 분석하는데 목적을 두고 있다. 이를 위해 첫째, 군집분석, 다차원척도법을 통하여 시기별 세부 주제 영역을 밝혔다. 둘째, 네트워크 분석을 통해 세부 주제 영역 간 관계를 시각화하고 전역 중심성이 높은 주제 영역을 확인하였다. 셋째, 1990년대와 2000년대 지적구조 비교를 통해 시간의 경과에 따른 주제 영역의 흐름을 규명하였다.

fMRI를 이용한 성인 편마비의 항조절점 운동이 대뇌피질의 활성화에 미치는 효과 (The Effect on Activity of Cerebral Cortex by Key-point Control of The Adult Hemiplegia with fMRI)

  • 이원길
    • The Journal of Korean Physical Therapy
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    • 제15권3호
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    • pp.295-345
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    • 2003
  • This study investigated activation of cerebral cortex in patients with hemiplegia that was caused by neural damage. Key-point control movement therapy of Bobath was performed for 9 weeks in 3 subjects with hemiplegia and fMRI was used to compare and analyze activated degree of cerebral cortex in these subjects. fMRI was conducted using the blood oxygen level-dependent(BOLD) technique at 3.0T MR scanner with a standard head coil. The motor activation task consisted of finger flexion-extension exercise in six cycles(one half-cycles = 8 scans = $3\;sec{\times}\;8\;=\;24\;sec$). Subjects performed this task according to visual stimulus that sign of right hand or left hand twinkled(500ms on, 500ms off). After mapping activation of cerebral motor cortex on hand motor function, below results were obtained. 1. Activation decreased in primary motor area, whereas it increased in supplementary motor area and visual association area(p<.001). 2. Activation was observed in bilateral medial frontal gyrus, middle frontal gyrus of left cerebrum, inferior frontal gyrus, inter-hemispheric, fusiform gyrus of right cerebrum, superior parietal lobule of parietal lobe and precuneus in subjedt 1, parahippocampal gyrus of limbic lobe and cingulate gyrus in subject 2, and inferior frontal gyrus of right frontal lobe, middle frontal gyrus, and inferior parietal lobule of left cerebrum in subject 3 (p<.001). 3. Activation cluster extended in declive of right cellebellum posterior lobe in subject 1, culmen of anterior lobe and declive of posterior lobe in subject 2, and dentate gyrus of anterior lobe, culmen and tuber of posterior lobe in subject 3 (p<.001). In conclusion, these data showed that Key-point control movement therapy of Bobath after stroke affect cerebral cortex activation by increasing efficiency of cortical networks. Therefore mapping of brain neural network activation is useful for plasticity and reorganization of cerebral cortex and cortico-spinal tract of motor recovery mechanisms after stroke.

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한국근대문학 주제가이드 개발에 관한 연구 (A Study on Subject Guide Development for Modern Korean Literature)

  • 홍현진;강미희;정대근
    • 한국도서관정보학회지
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    • 제47권3호
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    • pp.315-341
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    • 2016
  • 이 연구에서는 국립중앙도서관이 소장하고 있는 한국근대문학 자료를 대상으로 한국근대문학 주제가이드를 개발하였다. 이는 특수한 역사적 조건하에 존재하는 한국근대문학만의 특성을 반영하기 위해 한국근대문학 및 주제가이드에 대한 이론적 고찰, 이용자 인식조사, 국내외 사례조사 등의 과정을 통해 개발하였으며, 실제 데이터 구축 결과는 다음과 같다. 첫째, 한국근대문학 저자 117명에 대한 인물정보 및 작품 23,731건에 대한 서지데이터를 구축하였다. 둘째, 1894년부터 1945년까지 해당 저자에 의해 생산된 원자료와 이를 바탕으로 현재까지 다른 저자에 의해 생산된 파생자료를 범위로 하였다. 셋째, 저자별, 장르별, 시기별 배열체계를 통해 관련정보의 군집화를 시도하였다. 이와 같은 연구결과는 관련 학계조차 당시의 작가에 대한 정확한 통계를 알 수 없을 만큼 복잡한 양상으로 존재하는 한국근대문학에 대해 체계화와 구조화를 시도하였다는 점에서 의의가 있다고 본다.

Eicosapentaenoic Acid (EPA) Biosynthetic Gene Cluster of Shewanella oneidensis MR-1: Cloning, Heterologous Expression, and Effects of Temperature and Glucose on the Production of EPA in Escherichia coli

  • Lee, Su-Jin;Jeong, Young-Su;Kim, Dong-Uk;Seo, Jeong-Woo;Hur, Byung-Ki
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제11권6호
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    • pp.510-515
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    • 2006
  • The putative EPA synthesis gene cluster was mined from the entire genome sequence of Shewanella oneidensis MR-1. The gene cluster encodes a PKS-like pathway that consists of six open reading frames (ORFs): ORFSO1602 (multi-domain beta-ketoacyl synthase, KS-MAT-4ACPs-KR), ORFSO1600 (acyl transferase, AT), ORFSO1599 (multi-domain beta-ketoacyl synthase, KS-CLF-DH-DH), ORFSO1597 (enoyl reductase, ER), ORFSO1604 (phosphopentetheine transferase, PPT), and ORFSO1603 (transcriptional regulator). In order to prove involvement of the PKS-like machinery in EPA synthesis, a 20.195-kb DNA fragment containing the genes was amplified from S. oneidensis MR-1 by the long-PCR method. Its identity was confirmed by the methods of restriction enzyme site mapping and nested PCR of internal genes orfSO1597 and orfSO1604. The DNA fragment was cloned into Escherichia coli using cosmid vector SuperCos1 to form pCosEPA. Synthesis of EPA was observed in four E. coli clones harboring pCosEPA, of which the maximum yield was 0.689% of the total fatty acids in a clone designated 9704-23. The production yield of EPA in the E. coli clone was affected by cultivation temperature, showing maximum yield at $20^{\circ}C$ and no production at $30^{\circ}C$ or higher. In addition, production yield was inversely proportional to glucose concentration of the cultivation medium. From the above results, it was concluded that the PKS-like modules catalyze the synthesis of EPA. The synthetic process appears to be subject to regulatory mechanisms triggered by various environmental factors. This most likely occurs via the control of gene expression, protein stability, or enzyme activity.

체형(體型) 균형화(均衡化)를 위한 파운데이션 가먼트 제작(製作)에 관한 연구(硏究) - 장년층(長年層) 여성(女性)을 중심으로 - (A Study of the Foundation Garment Manufacturing for the Well-Balanced Somatotype - With middle-aged womenhood -)

  • 최미성;김옥진
    • 한국의류학회지
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    • 제17권2호
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    • pp.247-264
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    • 1993
  • This study deals with the manufacturing of the foundation garments for the well-balanced somatotype of the Korean middle-aged womenhood. In order to get hold of the different somatotypes, a survey of a total of 134 middle-aged women in Kwangju area, ranging in their age from 45 through 59 was made. The statistical methods used for the analysis of the basic data were the Pearson's correlation coefficient, Anova, Cluster analysis and Stepwise. Emphasis of the try-on test was placed on (1) the comparison of anthropometric data before and after trying on the foundation garments, (2) sensory evaluation, (3) a rating on fit and performance, (4) the comparison by means of photograph. The conclusions obtained are as follows : 1) The 134 women sampled and measured were classified into the five groups of somatotype : the 52 women (34%) belong to Cluster 1 ; the 22 women(14.5%) belong in Cluster 2 ; the 12 women(7.9%) belong in Cluster 3 ; the 15 women(9.9%) belong in Cluster 4 ; the 33 women(27.7%) belong to Cluster 5. 2) As for the characteristics of the foundation garment design, the V-shaped neckline and chest dart was used. The adjust point is right above the perineum point. The foundation garment length is as far as trochanteric point. The materials used are cotton/polyurethane, lace, 100%cotton. The materials used for corrections were the sponge pad for the chest, and non-woven fabric pad for the back, shoulder and the hip. 3) The comparison of the anthropometric data of the subject when dressed in foundation garments showed a significant difference in bust point height, in bust point length and in nipple-ta-nipple breadth, which proves the foundation garments to be effective in correcting such part as the chest, the hip and the abdomen. 4) As considered in terms of the sensory evaluation, the item except for the shoulder and the armhole coincided with each other in the mean value and in the composite reliability coefficient, which also proves the foundation garments to be effective. 5) Subjects were satisfactory on fit, performance, design, of the foundation garment, and their changed appearance. 6) In the case of the comparison through the photographs, the silhouettes of all the five women subjects were found effectively to be balanced.

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공간군집특성을 고려한 우리나라 물부족 핫스팟 지역 분석 (Spatial analysis of water shortage areas in South Korea considering spatial clustering characteristics)

  • 이동진;김태웅
    • 한국수자원학회논문집
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    • 제57권2호
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    • pp.87-97
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    • 2024
  • 본 연구에서는 국가물관리기본계획의 2030년 물부족량 전망자료를 이용하여 공간군집특성을 고려한 우리나라 물부족 핫스팟 지역을 분석하였다. 물부족 최심 군집지역 도출을 위하여 표준유역 기준의 과거 최대 가뭄(약 50년 빈도)에 대한 물부족량 자료를 이용하여, Local Moran's I와 Getis-Ord Gi* 통계량으로 공간군집분석을 수행하였다. 클러스터맵(Cluster Map)을 통해 물부족 공간군집 대상지역을 선정하고, 공간적 군집 특성은 p-값 및 모란 산점도를 통해 적정성을 검증하였다. 분석 결과, 한강권역 내 1개 군집[임진강하류(#1023) 및 주변]과 낙동강권역 내 2개 군집 [대종천(#2403) 및 주변, 가화천(#2501) 및 주변] 지역이 물부족이 심각한 핫스팟 지역으로 나타났으며, 한강권역 내 1개 군집[남한강하류 (#1007) 및 주변]과 낙동강권역 내 1개 군집[병성천(#2006) 및 주변] 지역이 물부족 HL (해당지역은 물부족량이 많고 주변지역은 물부족량이 적은) 지역으로 나타났다. 표준유역단위 공간군집분석을 수행할 경우 물부족 공간군집지역 전체가 통계량 기준을 100% 만족하여 통계적으로 유의미한 결과가 도출되었다. 이는 표준유역 단위로 공간군집분석을 할 경우 가변적 공간단위 문제를 일정 부분 해결한 것으로 공간군집분석의 정확성이 상대적으로 높아졌다.