• 제목/요약/키워드: Correspondent Analysis

검색결과 69건 처리시간 0.025초

한국 근해 쌍끌이대형저인망어업의 어종군집 분석 (Analysis of Species Assemblages Caught by Large-pair-Trawler in Korean Waters)

  • 이동우;이재봉;김영혜;강수경
    • 한국수산과학회지
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    • 제44권5호
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    • pp.499-505
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    • 2011
  • The fishing grounds of Korean large-pair trawlers have shifted since exclusive economic zones (EEZs) were established in a fisheries agreement involving countries neighboring Korean waters. The distributions of marine ecosystems and fisheries resources have been changing with environmental changes such as global warming and with the shift in species targeted as a result of changes in fishing technology and fishing gear. This study analyzed variation in the species assemblages caught in Korean waters by large-pair trawlers as a result of these geopolitical and environmental changes. The data used in this study were obtained from the Fishery Production Statistics of Korea and the Port Sample Survey of the National Fisheries Research and Development Institute (NFRDI) from 1990 to 2007. Hierarchical clustering analysis (HCA) and correspondence analysis (CA) were used to explore the characteristics of the catch-species composition. The overall variation in the species composition of the catch of Korean large-pair trawlers showed that the proportions of croaker Johnius grypotus, small yellow croaker Larimichthys polyactis, eel Anguilla japonica, and blue crab Portunus trituberculatus decreased, whereas those of hairtail Trichiurus lepturus, Spanish mackerel Scomberomorus niphonius, anchovy Engraulis japonicus, and common squid Todarodes pacificus increased in Korean waters over the 18-year period. The results of the HCA of the annual catch data by species showed four different distributions of fish species according to year. Results of the CA showed that the species assemblages differed between the 1990s and 2000s.

양송이 수확 후 배지로부터 식물생장촉진세균의 분리 및 생육특성 (Isolation and Characterization of Plant Growth Promoting Rhizobacteria from Waste Mushroom bed from Agaricus bisporus)

  • 정영필;경기천;장갑열;윤민호
    • 한국토양비료학회지
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    • 제44권5호
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    • pp.866-871
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    • 2011
  • An auxin-producing bacteria (3YN11-02) was isolated from waste mushroom bed from Agaricus bisporus of Chungnam Buyeo-Gun area. The strain 3YN11-02 was identified as a novel species belongs to Rahnella aquatica by a chemotaxanomic and phylogenetic nalysis. The isolate was confirmed to produce indole-3-acetic acid (IAA) which is one of auxin hormone by TLC and HPLC analysis. When the concentration of IAA was assessed by performing HPLC quantity analysis, the maximal $290mg\;L^{-1}$ of IAA detected in ether fraction extracted from the culture filtrate which was cultured in R2A broth containing 0.1% tryptophan for 24 h at $35^{\circ}C$. The molecular weight of the main peak obtained by LC-mass analysis was correspondent well to 175, that of IAA. To investigate the growth promoting effect of crop, when the culture broth of R. aquatica 3YN11-02 was infected onto water culture and seed pot of mung bean, the adventitious root induction and root growth of mung bean were 2.0 times higher than control.

HMIPv6에서 실시간 트래픽의 전송 성능 향상 방안 (Improving Transmission Performance of Real Time Traffic in HMIPv6)

  • 박원길;김병기
    • 한국통신학회논문지
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    • 제31권11B호
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    • pp.960-968
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    • 2006
  • HMIPv6(Hierarchical MIPv6)는 MAP(Mobility Anchor Point)이라는 에이전트를 사용하여 MIPv6의 핸드오버 처리 성능을 향상시켰다. 이 프로토콜은 모바일 노드 대신에 모든 패킷을 받으며, 모바일 노드를 대신하여 모바일 노드를 목적지로 하는 모든 패킷을 받아서 모바일 노드의 CoA(Care-of Address)로 패킷을 재전송한다. 그러나, 계층적 MAP 구조에서 발생되는 등록의 집중화 현상 때문에 전체 네트워크에 영향을 줄 수 있다. 본 논문에서는 모바일 노드가 MAP 선택 시 트래픽 특성에 의하여 MAP을 선택하는 방법과, 흠 에이전트나 상대 노드에서 바인딩 업 데이트를 처리할 때 실시간 트래픽을 위한 멀티 레벨 큐에 의한 차등화 처리방법을 제안하였다. 성능 평가는 겔 거주 시간에 따른 전체 핸드오버 비용의 변화를 분석하였다 성능 분석을 통해 제안방법이 위치 등록 비용과 모바일 노드의 전체 비용에서 향상됨을 보았다.

공동주택의 코어계획기법에 대한 연구 -유럽의 사례를 중심으로(I) - 유형학적으로 접근한 코어의 분류와 그에 따른 규범적 계획기법 - (A Study on the Planning for Access Area in the Multifamily Housing Based on the Analysis of European Examples (I) - Classification from the Typological Point of View and Normative Guide for Planning -)

  • 전남일
    • 한국주거학회논문집
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    • 제14권2호
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    • pp.63-75
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    • 2003
  • The planning of access area, so called "core" plays an important role of planning for multifamily housing, especially multistory housing. For all possibility of various planning and design, this area has been mostly planned and designed in uniformity. And only few attempts have so far been made in studying core, on the contrary to the unit plan or plotplan. It is keenly needed to develop various skills of planning and design in this sector. The purpose of this study is to find out the usable elements of planning and design, those are correspondent to normative targets. For this end, most possible core types are classified in to three categories: circulation types in the housing block, axis types to the entrance of housing units and number of accessed housing units. And then, sizable developments for norm of core have been effectuating in view of function, relationships both with housing unit and block. Based on this classification of types and listed norm, several European examples are analyzed and evaluated by merits and demerits of their respective core types. In addition to this analysis, some adequate planning conditions, positive vs. negative types of core, and detailed planning elements are prepared with regard to the norm of core. It is noteworthy that a variety of possible core planning cases are available by means of combination of lower categories in the classified core types. It is expected that this study will render service for some helpful planning and design guide in the practice

삼각형의 결정조건과 합동조건에 대한 교수학적 분석 (Didactical Analysis on Triangle-Determining Conditions and Triangle-Congruence Conditions)

  • 임재훈
    • 대한수학교육학회지:수학교육학연구
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    • 제15권2호
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    • pp.131-145
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    • 2005
  • 이 논문은 중고등학교 학생들과 예비수학교사를 대상으로 삼각형의 결정조건과 합동조건에 대한 이해의 양상의 일단을 조사하고, 삼각형의 결정조건과 합동조건에 대해 교수학적으로 분석한 것이다. 연구 결과의 일부를 제시하면 다음과 같다. 첫째, 삼각형의 6요소 구하기 학습 지도시 중학교에서 배운 삼각형의 결정조건이 지닌 의미를 재음미할 기회를 제공해야 한다. 둘째, 무엇을 삼각형의 결정조건으로 볼 것인가는 결정조건을 탐구하는 맥락에 따라 달리 판단될 수 있는 문제이다. 셋째, 삼각형의 결정조건이 지닌 최소필수성을 인식할 수 있게 하는 교재 구성과 학습 지도가 필요하다. 넷째, 합동에서 '대응'의 중요성을 인식하게 하는 학습 지도가 필요하며, 삼각형의 합동조건에서 '대응하는' 이라는 표현이 지닌 문제점을 해소하는 방안을 모색할 필요가 있다.

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초등학교 보건교육 교과영역에 대한 교사들의 인식도 속성: Concept mapping 기법을 활용한 실험적 시도 (Teachers' Perceived Dimensions on Elementary School Health Education Curriculum: An Experimental Trial Based on Concept Mapping Approach)

  • 박경옥
    • 보건교육건강증진학회지
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    • 제24권1호
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    • pp.93-108
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    • 2007
  • Background: School is a primary health education setting for children and the continuous support should be provided to renew school health education curriculum correspondent to socio-cultural changes in Korean society. Objectives: This study was conducted to identify the principals' and teachers' needs of health education topics for their students and to analyze their conceptual map for health education curriculum in Korean elementary school. Methods: The sample size of the first survey was 179 and that of the second survey was 691 of elementary school principals and teachers from stratified sampling over Korea. The self-administered mailing survey was conducted to o identify the factor structure of the health education topics and to analyze the conceptual properties with exploratory factor analysis and multidimensional scaling analysis in SPSS 12.0. Results: A total of 21 health education topics were collected from the first survey and 31 topics were, comprehensively, generated for the second survey. The five factors were determined: 'life health promotion behavior,' 'drug control and mental health,' 'bulling and aggression prevention,' 'safety perception and injury prevention,' and 'sex education and sexual harassment.' The educational need scores were the highest in 'safety perception and injury prevention.' The two-dimensional cooperates were generated for the 31 health education topics and the two dimensional properties which divided the conceptual space were 'health-safety' for one and 'public/environmental-individual/personal' for the other. Conclusions: Health education curriculum and textbook should be developed considering teachers' needs and conditions for health education in school fields. The field-based health education programs or textbook would make more possible problem-solving health education for children in real school fields.

Factors Delaying Presentation of Sudanese Breast Cancer Patients: an Analysis Using Andersen's Model

  • Salih, Alaaddin M;Alfaki, Musab M;Alam-Elhuda, Dafallah M;Nouradyem, Momin M
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권4호
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    • pp.2105-2110
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    • 2016
  • Purpose: A multicenter, observational, cross-sectional study was conducted to assess factors delaying presentation of breast cancer cases. Materials and Methods: Data were collected from a pair of highly specialized referral centers, both located in the center of the Sudanese capital, Khartoum. For a total of 153 eligible respondents, durations of delay, clinicodemographic factors and reasons of referral were collected from our respondents through self-administered questionnaires. Logistic regression analysis and ANOVA were used to test the relation between periods of delay and different factors. Odd ratios (OR's) and their correspondent Confidence intervals (95% CI's). Delay periods were studied with Andersen's model. Results: The average duration of delay in our study was 11.9 (${\pm}11.2$) months. Only a quarter of our patients presented early within the first 3 months after onset of their symptoms. About 47.7% arrived later during the course of the first year, while it took beyond that for the last 27% to come. A prior diagnosis of BC was the only predictor of early presentation (for 3-12 months OR=9.6 (p<0.00), 95% CI 9.55-9.75; for >12 months OR=9.3 (p<0.00), 95% CI 9.33-9.33). Out of the 12 different reasons for delay given by our respondents, none showed a significant difference between patients presenting early or late. Financial incapacity (17.5%), ignorance about BC (14.3), and misinterpreting symptoms (12.7%) were the top three whys of delay. Conclusions: Our findings support existence of a non-uniform pattern of delay among Sudanese BC patients. Changing currently adopted awareness elevating strategies into much more inclusive approaches is strongly recommended.

유튜브 이용자들의 허위정보 노출경험 및 규제에 대한 인식 차이 (YouTube Users' Awareness of False Information Regulation and Exposure to Disinformation)

  • 김소라
    • 한국콘텐츠학회논문지
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    • 제22권8호
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    • pp.14-32
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    • 2022
  • 이 연구는 유튜브 콘텐츠 이용자들을 대상으로 허위정보와 딥페이크 영상에 노출된 경험여부에 따른 허위정보 또는 딥페이크에 대한 인식에 대해 살펴 보고자 한다. 이를 위해 2018년 실시된 한국언론진흥재단의 "유튜브 동영상 이용 및 허위정보 유출경험' 온라인 설문조사자료를 활용하였다. 허위정보에 대한 인식의 차이를 보기 위해서 대응일치분석을 사용하였다. 분석 결과, 첫째 허위정보에 노출경험이 있는 남성이 한국에서의 유튜브 허위정보로 인한 문제점에 대해 가장 심각하게 인식하고 있는 것으로 나타났다. 둘째, 딥페이크 영상에 대한 규제의 필요성에 대해서는 딥페이크 영상 노출경험이 있는 여성들이 동의하는 경향이 컸으며, 남성보다는 여성이 딥페이크 영상에 대한 피해로 인한 규제의 필요성에 대한 인식이 강한 것으로 나타났다. 전반적으로 유튜브 이용자들이 규제가 필요하다는 데 동의가 높은 가운데, 유튜브 이용자들에게 주로 사용되는 허위 정보와 딥페이크의 유형을 교육할 필요가 있다. 특히 정보 생산자와 유통자가 스스로 규율할 수 있도록 환경을 조성하는 것이 바람직할 것으로 판단된다.

고령자 주택개조 관련 제도 현황 분석 (Analysis on the Home Modification related System for the Elderly)

  • 권오정;김진영;이용민
    • 한국실내디자인학회논문집
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    • 제27권2호
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    • pp.24-36
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    • 2018
  • Implementing a home modification to enable elderly's safe and independent living is the key plan to realize their aging in place. South Korea in which had entered an aged society is not yet vitalized in home modification for the elderly compared to that of welfare-developed countries, and South Korea provides support that is limited to the low-income elderly. Therefore, this purpose of this study was to analyze the laws related to the home modification, the present condition of home modification support, the standards and guidelines in home modification, the support in house modification cost, and supporting organization and working force in the home modification. Through the analyzing process, this study examined the current situation and problems of institutional support in the home modification for elderly and the proposed plan for institutional improvement. The suggestions based on the results are as in the following. 1) Home modification support law(act or regulation) is required to be improved 2) Home modification support system correspondent to aging process should be provided regardless of their income levels. 3) Delicate plan standard and guideline are necessary for a process of implementing the home modification for the elderly. 4) Information on life behavior is in need for the implementation of elderly-customized home modification. 5) Cost for the home modification should be considered to cover by the Act on Long-Term Care Insurance for the Aged. 6) Housing Welfare Center and Housing Welfare Professional should be actively utilized for the home modification support institution and work force.

중국수출(中國輸出) 기성복(旣成服)의 치수에 관한 연구(硏究)-KS규격(規格)을 중심(中心)으로 한 중국((中國) 여성복 (女性服)및 남성복(男性服)의 대응(對應)치수- (A Study on The Sizes of Ready-made Clothes to Export to China - Corresponding Sizes of China Women's and Men's Ready-made Clothes Sizes Based on KS size specification-)

  • 심부자
    • 패션비즈니스
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    • 제11권4호
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    • pp.152-172
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    • 2007
  • This research suggest the correspondent sizes of women's and men's ready-made clothes to export to China on the basis of KS size specification. The results of this study, with the cooperation of Sejung and Searte Companies exporting clothes to Ningbo City, Zhejiang Province in China, are as follows: 1. Corresponding Dimensions of China Women's Clothes According to Morrison's relative deviation method, the body measurement characteristics of Chines and Korean women in their 30s and 40s were compared. As a result, Chinese women were bigger in height, arm length, abdomen girth, and upper arm girth but smaller in shoulder length and shoulder width. The cluster analysis for body type classification was as follows: Type 1, tall and well-developed, was 34.8%. Type 2 with weaker upper body, medium height, narrow shoulders and a slim waist was 45%. Type 3 with stronger upper body, shortest height and wide shoulders was 20.2%. 2. Corresponding Dimensions of China Men's Clothes Based on the drop standard of KS K 0050, the body types of Chinese men in their 20s were classified. A body types were 55.77%, Y body types were 32.16%, B body types were 11.55% and BB body types were 1.51%. According to the criteria of ready-made dimensions of normal body type suggested in Korea Standards, and in consideration of the basic distribution reality of body dimensions, representative 5 sizes were selected. 3. The corresponding size specification of China women's and men's clothes based on those of KS size specification were presented here, showing product sizes and physical items in detail.