• 제목/요약/키워드: commonality analysis

검색결과 76건 처리시간 0.028초

클라우드 서비스 중개를 위한 가변성 기반의 서비스 명세 기법 (Variability-based Service Specification Method for Brokering Cloud Services)

  • 안영민;박준석;염근혁
    • 정보과학회 컴퓨팅의 실제 논문지
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    • 제20권12호
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    • pp.664-669
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    • 2014
  • 클라우드 컴퓨팅 패러다임이 성행하면서 IaaS, PaaS, SaaS 유형의 클라우드 서비스가 나타나고 있다. 제공되는 클라우드 서비스의 다양화로 인해 클라우드 테넌트(사용자)의 요구사항에 적합한 클라우드 서비스를 중개하는 기술인 서비스 브로커 기술이 최근 들어 관심을 받고 있다. 클라우드 서비스를 중개하기 위해서 다양한 클라우드 서비스의 체계적인 등록, 분석, 검색을 지원할 수 있는 클라우드 서비스 명세 모델이 필요하다. 본 논문은 다양한 유형의 클라우드 서비스를 명세하기 위한 가변성 기반의 클라우드 서비스 분석 모델(SAM)을 제시한다. SAM은 소프트웨어 프로덕트 라인의 가변성 개념을 적용하여 클라우드 서비스를 명세할 때 기능, 품질, 가격 측면에서 나타날 수 있는 가변점에 가변값을 바인딩함으로써 클라우드 서비스의 공통성과 가변성을 나타낸다. 또한, SAM을 이용하여 테넌트에게 클라우드 서비스를 중개하는 브로커로서의 가상 클라우드 뱅크의 구조를 제안한다.

Investigation of Defense and Vegetative Growth Related Traits of Recombinant Inbred Lines of Brassica rapa

  • Kwon, Soon-Tae;Yeam, Inhwa;Shin, Jong Hwa
    • 한국자원식물학회지
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    • 제33권6호
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    • pp.615-623
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    • 2020
  • Brassica rapa is one of the most valuable vegetable crops worldwide. Cultivated varieties of B. rapa exhibit diverse developmental and morphological appearances, which includes important vegetables, oilseeds, and fodder crops. In this study, various phenotypes of recombinant inbred lines (RILs) of B. rapa were investigated, including their responses to five different pathogenic Botrytis cinerea isolates, responses to aphid and thrips during flowering stages, days to flowering, and plant heights. Responses of 113 RILs to five different B. cinerea isolates showed variations, suggesting that genetic factors controlling resistance or tolerance against each isolate were dependent on isolate/genotype pairs. Correlation analysis was performed to understand the nature of genetic factors and the relationship among these phenotypes. Although high levels of correlation were not detected between phenotypes assessed in this study, statistically significant correlation was detected for several combinations. Significant positive correlations were found for different B. cinerea isolates, supporting that certain levels of commonality could exist in genetic components controlling resistance against different B. cinerea isolates. Based on correlation analysis using numbers of insects counted on plants, it was speculated that genetic factors responsible for aphid tolerance or repellence might be also involved in the response against thrips. Relationship between vegetative growth and tolerance against B. cinereal or insects is rather more complicated. However, it was observed that shorter plants appeared to have a certain level of tolerance or repellence against both aphids and thrips. Data presented in this study could be used to assist further genetic studies and breeding efforts to obtain Botritis and insect resistance for B. rapa.

학업 성취도 국제 비교 연구에 나타난 우리나라 학생들의 수학 성취도 심층 분석 (An In-depth Analysis of the Result of the International Comparative Study of Mathematics)

  • 박경미
    • 대한수학교육학회지:수학교육학연구
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    • 제14권4호
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    • pp.387-401
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    • 2004
  • 본 연구는 최근에 이루어진 대표적인 수학 성취도 국제 비교 연구인 PISA와 TIMSS-R의 성취도를 표준화하여 비교함으로써 한국과 일본, 그리고 미국과 호주를 비롯한 영어권 국가들이 각각 유사한 성취 경향을 보인다는 사실을 확인하였다. 이를 보다 체계화하기 위해 PISA의 결과를 문항반응이론에 의해 분석하여 국가별, 문항별 난이도를 조사하였다. 문항반응이론에 근거하여 각 국가의 학생들에게 상대적으로 더 어렵고 쉬운 문항을 판별한 결과, 30개 중 16개의 문항에서 한국과 일본, 그리고 미국과 호주가 각각 동일한 성취 경향을 보이는 것으로 나타났다. 이러한 성취 경향의 유사성을 심층적으로 분석하기 위하여 한국과 일본, 그리고 미국과 호주가 각각 강세를 보인 문항들을 추출하여 그 공통점을 탐색하였다. 미국과 호주의 학생들은 열린 구성반응형 문항을 해결하는데 상대적으로 능숙하고, 한국과 일본의 학생들은 함수와 통계 영역의 문항에서 성취 수준이 높지 않으며, 형식화된 수학적 지식을 요구하는 문항일수록 한국과 일본 학생들에게 유리하게 작용하는 것으로 나타났다.

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Comprehensive Evaluation System for Post-Metabolic Activity of Potential Thyroid-Disrupting Chemicals

  • Yurim Jang;Ji Hyun Moon;Byung Kwan Jeon;Ho Jin Park;Hong Jin Lee;Do Yup Lee
    • Journal of Microbiology and Biotechnology
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    • 제33권10호
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    • pp.1351-1360
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    • 2023
  • Endocrine-disrupting chemicals (EDCs) are compounds that disturb hormonal homeostasis by binding to receptors. EDCs are metabolized through hepatic enzymes, causing altered transcriptional activities of hormone receptors, and thus necessitating the exploration of the potential endocrine-disrupting activities of EDC-derived metabolites. Accordingly, we have developed an integrative workflow for evaluating the post-metabolic activity of potential hazardous compounds. The system facilitates the identification of metabolites that exert hormonal disruption through the integrative application of an MS/MS similarity network and predictive biotransformation based on known hepatic enzymatic reactions. As proof-of-concept, the transcriptional activities of 13 chemicals were evaluated by applying the in vitro metabolic module (S9 fraction). Identified among the tested chemicals were three thyroid hormone receptor (THR) agonistic compounds that showed increased transcriptional activities after phase I+II reactions (T3, 309.1 ± 17.3%; DITPA, 30.7 ± 1.8%; GC-1, 160.6 ± 8.6% to the corresponding parents). The metabolic profiles of these three compounds showed common biotransformation patterns, particularly in the phase II reactions (glucuronide conjugation, sulfation, GSH conjugation, and amino acid conjugation). Data-dependent exploration based on molecular network analysis of T3 profiles revealed that lipids and lipid-like molecules were the most enriched biotransformants. The subsequent subnetwork analysis proposed 14 additional features, including T4 in addition to 9 metabolized compounds that were annotated by prediction system based on possible hepatic enzymatic reaction. The other 10 THR agonistic negative compounds showed unique biotransformation patterns according to structural commonality, which corresponded to previous in vivo studies. Our evaluation system demonstrated highly predictive and accurate performance in determining the potential thyroid-disrupting activity of EDC-derived metabolites and for proposing novel biotransformants.

과학호기심 설문지의 수정 및 검증을 통한 새로운 과학호기심 설문지의 개발 - 초등예비교사의 과학호기심 분석을 통하여 - (Development of a Novel Science Curiosity Questionnaire through Modification and Verification of the Science Curiosity Questionnaire -Through the Analysis of Science Curiosity of Pre-Service Elementary Teachers-)

  • 김동욱;신민현
    • 한국초등과학교육학회지:초등과학교육
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    • 제42권1호
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    • pp.149-160
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    • 2023
  • 한국어판 SCILE(30)설문지를 요인분석방법을 사용하여 과학호기심 설문지인 한국어판 SCILE(15)설문지를 개발하였다. 먼저 한국어판 SCILE(30)설문지를 사용하여 초등예비교사들을 대상으로 설문 조사를 시행한 후에 요인분석을 수행하였다. 요인분석결과, '과학실천형' 호기심, '확장형' 호기심, '포용형' 호기심 요인의 3가지 요인으로 구성된 15문항의 한국어판 SCILE(15)설문지가 얻어졌다. 한국어판 SCILE(15)설문지에 대한 확인적 요인분석에 의한 요인구조를 분석한 결과, 각 요인 간에 상관관계를 보여 과학호기심요인으로서의 공통성이 확인되었다. 한국어판 SCILE(15)설문지의 전체문항에 대한 신뢰도와 각 요인별 문항들에 대한 신뢰도는 크론바흐 알파 0.700 이상으로 평가되어 과학호기심 설문지인 한국어판 SCILE(15)설문지는 신뢰성이 있는 것으로 평가되었다. 설문지개발을 위한 설문 조사에 참석한 초등예비교사들은 과학호기심에 대하여 '과학실천형' 호기심, '확장형' 호기심, '포용형' 호기심 요인을 인식하고 있었다. 세 종류의 과학호기심 요인들에 대하여 일반선형모형으로 분석한 결과 호기심요인들은 서로 유의미한 차이를 보였다. 이러한 결과는 초등예비 교사들은 '과학실천형' 호기심요인, '확장형' 호기심요인, '포용형' 호기심요인을 인식하는 정도가 다르다는 것을 나타낸다. 초등예비교사는 과학호기심의 세 가지 요인 중에서 '확장형' 호기심요인의 인식정도가 가장 높았고, '포용형' 호기심요인의 인식정도는 가장 낮은 특성을 보였다.

한·일 고대 나막신의 유형별 특징연구 (The Characteristics of Types on Ancient Wooden Shoes(Namagsin) of Korea and Japan)

  • 이호정;조우현
    • 복식
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    • 제65권6호
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    • pp.1-14
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    • 2015
  • This study is aims to study the background of how the shape of the wooden shoes developed and worn by Koreans and Japanese in the ancient times by sorting and examining the types and shapes. Relevant bibliography, which are mainly related to the excavated wooden shoes from 3 B.C.E to C.E. 8., were used as research materials. The formation of wooden shoes required easy access to raw materials -which is trees- for production. According to the analysis, both Korea and Japan made the flat wooden shoes using cuboid wood. Both countries bore a hole on a specific location to distinguish the right foot and left foot, however the style of the heel was different in the two countries. The slip-on(Undu-hyeong) wooden shoes were also common in both countries. The slip-on had no-heels and was made by digging-out a piece of the cuboid wood. Some slip-ons made by the Japanese had furrows on the bottom, and they were known to make different types of the slip-on wooden shoes depending on the purpose. Observation of the wearing methods show that commonality can be found between the wooden shoes of Korea and Japan, and this indicates that cultural exchanges between the Silla/Baekje and Japan took place from the 4th to the 6th century. Also, the flat wooden shoes in Japan developed rapidly, as the shoes became an integral part of its life and culture, which was closely tied to agriculture. Eventually, due to the difference in climate and life-style, the slip-ons became the primary type of wooden shoes in Korea, while the flats became the main type of wooden shoes in Japan. It is, however, clear that as the relationship between the two countries became closer, the cultural exchanges regarding the wooden shoes were considerable.

'피네간의 경야(經夜)'를 통해 본 존 케이지 음악과 베르나르 츄미 건축의 상호텍스트성에 관한 연구 - 불확정성 개념의 표현양상을 중심으로 - (A Study on the Intertextuality of John Cage's Music and Bernard Tschumi's Architecture in the viewpoint of Finnegan's Wake - Focusing on the Presentation Aspects of Indeterminacy -)

  • 김홍기;김미경
    • 한국실내디자인학회논문집
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    • 제18권5호
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    • pp.59-70
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    • 2009
  • Since the emergence of a philosophical theory called deconstructivism, intertextuality has been promote the hybrid phenomenon amongst other jenres in arts. Various research efforts in intertextuality, however, have been more focused on the fields of literature and philosophy, rather than of architecture. This study aims to clarify the intertextuality between architectural design, music and literature as the following analysis of James Joyce's Finnegan's Wake, John Cage's music and Bernard Tschumi's early works. Joyce's Garden of Bernard Tschumi's project and some of John Cage's music works had borrowed from Finnegan's Wake, a novel James Joyce. Hence, the commonality between Bernard Tschumi and John Cage can naturally be related through Finnegan's Wake. Also, Finnegan's Wake had been contextualized by Jacques Derrida before it was used as a mediation by Bernard Tschumi. In this viewpoint, the paper will be able to identify the possibility of intertextuality between musical text and architectural one with a medium of literature. Major findings of the study are as follows: First, Finnegan's Wake played a guiding role to deconstruct the existing formalism and to construct a new concept in John Cage's music and Bernard Tschumi's architecture. Second, John Cage's music and Bernard Tschumi's works are included commonness with indeterminacy concepts. Third, the both artists share a drawing concept as found in John Cage's graphic notation of the 1950s and Bernard Tschumi's early architecture where grids, dots, and curves are used in common. As s result, intertextuality could be possible to make sure between others. Like this interdisciplinary research of relationships among different fields will be of great help in constructing creative design methods in architecture. With continuous research attempts, it is hopeful to intertextualize architectural texts with related art fields.

APPLICATION OF MERGED MICROWAVE GEOPHYSICAL OCEAN PRODUCTS TO CLIMATE RESEARCH AND NEAR-REAL-TIME ANALYSIS

  • Wentz, Frank J.;Kim, Seung-Bum;Smith, Deborah K.;Gentemann, Chelle
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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    • pp.150-152
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    • 2006
  • The DISCOVER Project (${\underline{D}}istributed$ ${\underline{I}}nformation$ ${\underline{S}}ervices$ for ${\underline{C}}limate$ and ${\underline{O}}cean$ products and ${\underline{V}}isualizations$ for ${\underline{E}}arth$ ${\underline{R}}esearch$) is a NASA funded Earth Science REASoN project that strives to provide highly accurate, carefully calibrated, long-term climate data records and near-real-time ocean products suitable for the most demanding Earth research applications via easy-to-use display and data access tools. A key element of DISCOVER is the merging of data from the multiple sensors on multiple platforms into geophysical data sets consistent in both time and space. The project is a follow-on to the SSM/I Pathfinder and Passive Microwave ESIP projects which pioneered the simultaneous retrieval of sea surface temperature, surface wind speed, columnar water vapor, cloud liquid water content, and rain rate from SSM/I and TMI observations. The ocean products available through DISCOVER are derived from multi-sensor observations combined into daily products and a consistent multi-decadal climate time series. The DISCOVER team has a strong track record in identifying and removing unexpected sources of systematic error in radiometric measurements, including misspecification of SSM/I pointing geometry, the slightly emissive TMI antenna, and problems with the hot calibration source on AMSR-E. This in-depth experience with inter-calibration is absolutely essential for achieving our objective of merging multi-sensor observations into consistent data sets. Extreme care in satellite inter-calibration and commonality of geophysical algorithms is applied to all sensors. This presentation will introduce the DISCOVER products currently available from the web site, http://www.discover-earth.org and provide examples of the scientific application of both the diurnally corrected optimally interpolated global sea surface temperature product and the 4x-daily global microwave water vapor product.

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우리나라 전문계열 고등학교 교과서의 해양관련 내용 분석 (The Analysis of Oceanic Contents based on Vocational High School Textbook in Korea)

  • 김삼곤;홍철훈;차철표
    • 수산해양교육연구
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    • 제20권2호
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    • pp.222-235
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    • 2008
  • The study analyzed 343 government-authorized and officially approved textbooks of the Seventh Curriculum's specialized subjects in high school from March to September, 2007. The textbooks were categorized into the area of agriculture, industry, commerce, household and business, science, foreign languages and physical exercise and analyzed in terms of the target and content areas of marine education. And the findings were as follows: First, among the textbooks in the seven groups serving as the focus of this study, 19.8% have oceanic-related information but pages including ocean contents occupy only 0.8%. Consequently ocean-related contents are scarcely included. The ocean-related contents are necessary to be treated goals. Second, the goals of school oceanic education are focused in vocational subjects. In order of commonality, information & knowledge are most frequent, then functionality, followed by activity & participation. There was no education provided focusing on value & attitude. Given that school oceanic educations were selected for promoting the importance of the ocean and highlighting the problems of the ocean, the lack of information & knowledge is of concern. The goals of oceanic education should be augmented to actively and positively participate in the solutions of the problems with knowledge, ocean-friendly value & attitude, and increased activity & participation. Third, the contents of school oceanic education commonly focuses on the relationships of oceans and humans, oceans and ecology, and artificial oceanic environments and facilities. Less common but still introduced are ocean resources, sea pollution, sea preservation and measures. Yet, in contrast there is a lack of education in the ethics of sea preservation.

Job Satisfaction among Library and Information Science Professionals in India: A Case Study

  • Pandita, Ramesh
    • Journal of Information Science Theory and Practice
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    • 제5권1호
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    • pp.47-64
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    • 2017
  • Purpose: This study aims to assess the level of job satisfaction among the practicing Library and Information Science (LIS) professionals in India. Some of the key variables studied include salary, work environment, professional position, working hours, location, employee participation in administrative matters, recognition, and advancement. Scope: The study is limited to LIS professionals in India; however, the results of the study show some degree of commonality among LIS professionals across the world. Methodology/Approach: The study has been purely undertaken by analyzing the primary data collected from practicing library and information professionals across India by circulating an online questionnaire, using Google services and by posting the link on various social groups and other social networking sites such as Groups, Facebook, LinkedIn, discussion forums, and e-mails. Findings: Responses were generated across 20 states and union territories of the country, representing 88.15% territory of India. Of the total responses generated, 72.88% are males and 27.12% females. From the data analysis it emerged that every third library professional in India enters in to LIS profession by chance and not by choice, as 35.59% respondents expressed that they landed in the LIS profession by chance and 60.45% by choice. More than 77% respondents have expressed their willingness to change their present employer, if given better opportunity. More than 80% professionals either fully or partly agree that most of the LIS professionals across India are dissatisfied with their employers. All these and many more areas have been explored, which reflect the aspects of job satisfaction and dissatisfaction among LIS professionals in India.