• 제목/요약/키워드: information sources

검색결과 3,465건 처리시간 0.036초

이질의 생물 정보원 통합을 위한 랩퍼 시스템에서의 XML 질의 처리 시스템 (An XML Query System in a Wrapper System for Integrating Heterogeneous Biological Databases)

  • 박은경;강동완;정채영;김현주;배종민
    • 정보처리학회논문지D
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    • 제12D권4호
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    • pp.553-568
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    • 2005
  • 분산된 생물 정보원을 물리적으로 혹은 가상적으로 통합하기 위해서는 정보원들의 이질성을 해결해야 하며, 사용자의 다양한 요구를 수용할 수 있도록 범용성과 적응력이 뛰어나야 한다 본 논문에서는 데이터는 물론 응용 프로그램의 통합을 위한 미들웨어를 설계함에 있어서 랩퍼 시스템에서의 융통성 있는 범용 XML 질의 처리 엔진을 제시한다. 제시된 질의 처리 엔진은 사용자 정의 XML 뷰를 지원함으로서 융통성 있는 통합 질의 구성을 가능하게 한다. 질의 처리 과정은 뷰 합성, 지역 정보원에 대한 질의 변환, 그리고 결과 문서 생성과정을 동반하는데, 이를 위해 XML 뷰와 XML 질의어를 뷰 트리로 표현하는 XML 뷰 트리 기반의 질의 처리 모델을 제시한다. 그리고 제시된 질의 처리 모델의 범용성을 확인하기 위해 관계형 데이터베이스와 웹 정보원, 그리고 응용 프로그램에 대하여 정보원의 질의 결과 형이 관계형 튜플과 XML 문서인 경우에 대한 질의 처리 방법을 제시한다.

인천항 항만시설에서의 대기오염물질 배출량 산정 (Estimation of Air Pollutant Emissions from Port-Related Sources in the Port of Incheon)

  • 한세현;윤종상;김우중;서윤호;정용원
    • 한국대기환경학회지
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    • 제27권4호
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    • pp.460-471
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    • 2011
  • A port has been regarded as a significant contributor to air pollution in the surrounding areas. Port-related air pollutants are released from not only marine vessels, but also various land-side sources at ports, which include cargo handling equipment, vehicles, locomotives, and fugitive dust sources by port activities such as bulk handling and vehicle movements. However, most studies in Korea have only focused on vessel emissions and there is a lack of information on the emissions from other sources at port. In this study, in order to establish the port-related emission inventory and evaluate the relative contribution of these sources to air emissions from the Port of Incheon, the emissions from land-side sources were estimated and the CAPSS (Clean Air Policy Support System) data for vessel emissions were used. In particular, the detailed information and activity data for the cargo handling equipment source were collected and the emission factors and emissions by equipment types were calculated using U.S. EPA methodologies. Total HC, CO, $NO_x$, $PM_{10}$, and $SO_2$ emissions from port-related sources including the vessel in 2007 were calculated as 229 ton/year, 638 ton/year, 4,861 ton/year, 307 ton/year, and 3,995 ton/year, respectively. It was found that the vessel was the largest contributor to air pollutant emissions from the port, the cargo handling equipment was responsible for about from 8% to 13% of HC, CO, and $NO_x$ emissions and the resuspended road dust contributed about 39% for $PM_{10}$ emissions. The results of this study will be used to establish the management and reduction strategies of air pollution in the port.

남자 중.고등학생의 유행선도력과 정보원 활용 및 의류구매행동과의 관계연구(제2보) (A Study on Fashion leadership, use of fashion information and apparel shopping behavior of middle-and high-school male students (Part II))

  • 전경숙
    • 복식
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    • 제50권7호
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    • pp.5-14
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    • 2000
  • Fashion leadership of middle- and high-school male student was measured. The subjects were divided into five subgroups including, fashion dual leaders(13.3%), innovators(10.3%), opinion leaders(7.6%), followers(52.3%), and laggards(16.3%), according to their innovativeness and opinion leadership. The findings were as follows : fashion dual leaders were very confident and fashion-conscious while other subgroups were very price-conscious and quality-aware. Among the fashion information sources included in the study' my own experience and opinion' was the most Important to all 5 subgroups. Generally the higher the fashion leadership was, the more actively utilized fashion information sources. The fashion magazine and commercials as information sources was not as important to the subjects as it was to college women. Apparel shopping behavior was also significantly different among subgroups. As a whole, the general characteristics, such as. the use of fashion information and the apparel shopping behavior, of opinion leaders and innovators were similar, but those of followers and laggards were very dissimilar.

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직장여성의 쇼핑성향과 의복구매특성에 관한 연구 - 전라남도 여교사를 중심으로 - (A Study on Clothing Shopping Orientation and Cloghin Buying Behavior of female workers)

  • 이영미;이옥희
    • 대한가정학회지
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    • 제40권2호
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    • pp.87-100
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    • 2002
  • The purpose of this study was to investigate the demographics and general clothing buying behavior according to clothing shopping orientation of female workers. A questionnaire was developed to measure clothing shopping orientation, fashion information sources, stores selection criteria, clothing purchasing frequency of a year, purchasing expenditure of clothing, the demographics. The questionnaire was administered to 775 female teacher in Chonnam. The data was analyzed using percentage, frequency, mean, factor analysis, Cluster Analysis, $\chi^2$-_test and ANOVA, Duncan test. The results of the study were as follows: 1. The female teachers were classified into four groups by the cluster analysis; indifferent shopping group, rational shopping group, conspicuous shopping group, recreational shopping group. 2. In the case of fashion information sources, significant differences were found according to shopping orientation subdivision in mass media information, information by consumer, information by marketer. 3. The stores selection criteria were significantly different depending on shopping orientation subdivision in goods and atmosphere of shop, promotion, convenience of shop's location. 4. The clothing purchasing frequency of a year were significantly different depending on shopping orientation subdivision. 5. The significant differences were found according to shopping orientation subdivision in purchasing expenditure of clothing. 7. In the demographic characteristics, significant differences were found according to shopping orientation subdivision in age, marriage, the length of one's work, income.

Use of Photographs as Data Sources for Costume Research

  • Lee, Hae-Young;Elaine, Pedersen
    • 패션비즈니스
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    • 제5권5호
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    • pp.27-35
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    • 2001
  • The purpose of this paper is to explore that what is the consideration when using photographs as data sources for historic costume research. So in other to achieve the study, first of all, I have to think over about the new media, photography, and then review the articles and studies how they have been used by scholars outside or our field. The considerations are the followings: 1. What kind of information can be found in historic photographs? The kind of information that may only be found in historic photographs and not in any other data source. What types of photographs are there; how the information varies by type of photograph. 2. What photographs can provide as data sources? How photographs can be used quantitative versus qualitative information; how to collect this information from one or more photographs, the criteria for the use of photographs. 3. Limitations of using historic photographs and what kind of information cannot be found in historic photographs. Be sure to discuss investigating the reliability of assigned dates;the importance of and suggestions on how could be done as part of the criterial for use of photographs. So, by asking and understanding these questions, we will use photographs better as a visual resource forward.

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의복중독 구매 성향에 따른 의복구매 여부 영향 변수들의 연구 (Effects of Addictive Apparel Buying Tendencies on Apparel Buying Behaviors)

  • 박영신;박은주
    • 복식문화연구
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    • 제11권3호
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    • pp.352-366
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    • 2003
  • The purposes of this study were 1) to examine the conceptual structure information sources, antecedent states, and purchasing situation related to the apparel buying behavior, 2) to compare the differences between high addictive buying consumers and low addictive buying consumers in related variables, and 3) to find out the discriminating variable of apparel buying behaviors on the degree of addictive buying tendencies of apparel in department store. The questionnaire was developed based on the results of pretest and previous studies, and completed by 726 fcmale consumers living in Busan, Korea. 1) Factor analysis showed that information sources related to apparel buying behaviors consisted of the information of store and observation, and antecedent states did consumer's mood and availability of cash/cards. Also, purchasing situation in apparel store composed of four factors, such as Atmosphere, Price/quality, Store policy/salesperson, and Influence of others. 2) By t-test, there were significant differences between high addictive buying consumers and low addictive buying consumers in information sources, antecedent states, and purchasing situations. 3) The apparel buying behavior of high addictive buying consumers were influenced by the information of observation, and that of low addictive buying consumers were did by the atmosphere of apparel store.

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다매체 직접수열 대역확산 다중접속 시스템에 관한 연구 (Analysis of Multi-Media DS/CDMA System)

  • 김홍직;김상우
    • 한국통신학회논문지
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    • 제24권6A호
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    • pp.775-781
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    • 1999
  • 이 논문에서는 다매체(Multi-Media)를 지원하는 변환 확산 이득을 가지는 직접수열 다중접속 시스템(Variable Processing Gain DS/CMA System)에 대해 생각한다. 서로 다른 전송율과 서로 다른 전송 전력을 가지는 두 가지 유형의 정보원이 같은 채널로 전송된다고 가정한다. 각 유형의 정보원에 대한 상관 수신기에서의 평균 신호 대 잡음비를 확산 부호간의 부분 상관함수들의 함수로 유도하였다. 매체간의 전송율의 차이가 클수록 랜덤 확산부호를 가정에 의한 평균 신호 대 잡음비가 실제값과 큰 차이(최대 1dB 이상)를 나타냄을 확인하였다. 본 연구의 결과는 다매체 직접수열 대역확산 다중접속 시스템 설계에 필요한 분석적인 도구로 이용될 수 있다.

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국내 의류업체의 QR도입과 머천다이저의 활동에 관한 연구 (QR Adoption and Merchandiser's Activity in the Korean Apparel Industry)

  • 신상무
    • 대한가정학회지
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    • 제36권11호
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    • pp.141-156
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    • 1998
  • The purpose of this study was to investigate current QR technology usages and merchandisers' roles and information activities in the Korean apparel industry. Data were collected by interview and questionnaire with merchandisers in apparel companies, manufacturing apparels for both men and women. Statistical analyses were t-test, ANOVA, frequency with SAS program. The results of the study were as follows: 1. The usage of QR technology was generally low. But POS, bar-coding, logistics and small lot order were highly used compared to other technologies. CAD, automated sewing operation, unit product system, logistics, and small lot order were more used in domestic national brand than in import license brand. POS applications were more used in product planning division than in others. 2. Merchandisers played important roles in making major decisions on cost price, sales price, manufacturing request, delivery data, production quantity, produce mix, budget planning, market timing and delivery channels. Products planning was conducted mostly on a monthly basis. Price was determined mainly according to cost price, while the production quantity depended on the last year's sales. Usually sales were analyzed on a daily basis. 3. Merchandisers got more information on fashion them and color trend from foreign information sources than from domestic, while more information on fabrication from domestic sources. For fashion design information they used the equal amount from domestic and foreign sources. Over all degree of utilization in each field of fashion information was fugured rather high.

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고등학생들의 정보이용환경(IUEs)에 관한 연구 (A Study on High School Students' Information Use Environments)

  • 정진수
    • 한국문헌정보학회지
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    • 제51권3호
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    • pp.189-213
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    • 2017
  • 본 연구의 목적은 정보이용환경 모형을 적용하여 교육열 높은 지역 고등학생들의 특성과 전형적인 정보문제들을 확인하고 그 문제해결을 위한 정보원, 그리고 이용환경을 분석하는 것이다. 이를 위해 서울 K구 소재 중산층과 사교육기관이 밀집한 지역 3개 고교 220명의 학생들에게 설문지를 배포하고 188부의 유효응답 설문지를 회수하였고, SPSS24를 이용하여 기술통계, 상관분석, T-검증, 카이제곱 교차분석, 탐색적 요인분석을 하였다. 수집된 데이터를 사람들, 정보문제, 문제해결, 이용환경의 네 요소로 나누어 분석한 결과, 이 지역 고등학생들은 학교교육, 대학진학, 변화와 혁신에 대체로 긍정적인 태도를 갖추고 있으며 여러 정보원 중에 인터넷커뮤니티와 포털을 가장 선호하였다. 학생들의 전형적인 정보문제는 7개 자아범주의 21개 문제임이 도출되었으며 이들은 감정적 자아와 인지적 자아 범주의 문제들을 가장 중요하다고 인식하였다. 이 두 자아범주의 문제해결을 위해서는 부모, 형제, 자매가 주요정보원이었는데 이 결과는 학생들이 가장 선호하는 정보원이 인터넷 커뮤니티와 포털이라는 조사 결과와는 달라 흥미롭다. 학생들의 주중 일상적 이용환경은 집과 학교이며 그 외 스마트기기, 사교육학원, PC 또는 노트북 등의 순이었고 학생들의 주말 일상적 이용 환경은 집 외에 사교육학원, 음식점, PC 또는 노트북 등의 순이었다. 또한 이용환경은 성별과 학년에 따라 유의미한 차이를 나타냈다. 본 연구는 후속 연구를 위해 연구 결과로부터 파생된 여러 연구 질문을 남겼으며 다양한 맥락에 적용가능한 정보이용환경 모형을 교육열이 높은 지역 고등학생들에게 적용했다는 점에서 의의가 있다.

MFCC를 이용한 수중소음원의 식별 (Identification of Underwater Ambient Noise Sources Using MFCC)

  • 황도진;김재수
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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    • pp.307-310
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    • 2006
  • Underwater ambient noise originating from the geophysical, biological, and man-made acoustic sources contains much information on the sources and the ocean environment affecting the performance of the sonar equipments. In this paper, a set of feature vectors of the ambient noises using MFCC is proposed and extracted to form a data base for the purpose of identifying the noise sources. The developed algorithm for the pattern recognition is applied to the observed ocean data, and the initial results are presented and discussed.

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