• 천문학회보
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• 제36권2호
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• pp.53.1-53.1
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• 2011

We analyze the halo and galaxy catalogs from the Millennium simulations at redshifts z=0, 0.5, 1 to determine the alignment profiles of cluster galaxies in terms of the matter density correlation coefficient and discuss a cosmological implication our result has for breaking parameter degeneracies. For each selected cluster, we measure the alignment between the major axes of the pseudo inertia tensors from all satellites within cluster's virial radius and from only those satellites within some smaller radius. Then we average the measured values over the similar-mass sample to determine the cluster galaxy alignment profile as a function of top-hat scale difference at each redshift. It is shown that the alignment profile of cluster galaxies is well approximated by a power-law of the nonlinear density correlation coefficient that is independent of the power spectrum normalization and bias factor. The alignment profile of cluster galaxies is found to have higher amplitude and lower power-law index when averaged over the larger-mass sample and to have rather weak redshift-dependence. This result is consistent with the picture that the satellite galaxies retain the memory of the external tidal fields right after merging and infalling into the clusters but they gradually lose the initial alignment tendency as the cluster's relaxation proceeds. Demonstrating that the nonlinear density correlation coefficient varies sensitively with the density parameter and neutrino mass fraction, we discuss a potential power of the cluster galaxy alignment profile as an independent probe of cosmology.

• 복식문화연구
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• 제26권2호
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• pp.203-216
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• 2018

This study explores sustainability education in textile and apparel (T&A) programs in U.S. higher education institutions. Specifically, the researchers study whether more courses with sustainability focus are offered in higher-ranked institutions and explore whether sustainability is taught more in specific T&A related subject fields. Content analysis was conducted for 3,200 courses found in online course catalogs or the course information sites of 69 institutions. Institutions were selected from the 2015 rankings of the top 50 fashion design and top 50 fashion merchandising schools in the US on www.fashion-schools.org. All cases were coded by two coders with a Cohen's Kappa score of 97.5%, indicating good interrater reliability. Coded data were analyzed through descriptive statistics, correlation analysis, and t-tests. The findings show that sustainability is being integrated into the curricula and across courses of T&A programs in the U.S. Over half of the institution surveyed offered at least one sustainability embedded course. Higher ranked institutions provided more sustainability-related courses than power-ranked institutions. A natural match between the subject field and specific sustainability theme was observed (e.g., cultural diversity in history/culture and social psychology/education; recycle/reuse in textile science; sustainability in fashion design; social responsibility and ethics in industry/consumer). The need to introduce sustainability in courses holistically is discussed, whereby sustainability within the industry supply chain is examined in a connected way.

• 한국도서관정보학회지
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• 제49권2호
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• pp.221-244
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• 2018

이 연구의 목적은 우리 이용자의 요구와 행태에 기반 한 FRBR 기반 OPAC 프로토타입을 실험적으로 구현해 보는데 있다. 이러한 목적을 위해 이 연구에서는 시스템 개발방법 중 사용자의 요구사항이 민감하게 반영되어야 할 경우 활용할 수 있는 방법인 프로토타이핑(prototyping) 기법을 적용하여 연구를 수행하였다. 구체적으로, 이 연구에서는 (1) 국외 FRBR형 검색서비스에 대한 이용자 선호도 평가결과를 토대로 하여 프로토타입의 논리적 구조를 설계하고, (2) 설계한 논리적 구조에 따라 FRBR 기반 프로토타입을 물리적으로 개발한 다음, (3) 프로토타입에 대한 이용자 만족도 평가를 실시하였다. 이 때, 만족도 평가는 대학생 50명과 전문가 6명을 대상으로 수행하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제12권1호
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• pp.87-116
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• 2003

One of the important applications for business-to-business electronic commerce is in procurement and inventory management using electronic data interchange(EDI). Using online catalogs and approved supplier lists, firms can easily create requisitions and purchasing documents. The emerging trend in EDI technology is changed from VAN(Value Added Network) based EDI to XML based EDI. This paper intends to suggest a component-based XML/EDI system using Unified Modeling Language(UML), as an application system for automobile part industry. Applying component based XML/EDI systems designed with UML methodology, we analyzed the workflow and the document on procurement process between trading partners and implemented a prototype of efficient XML/EDI system, as a surrogate of existing VAN/EDI. The result of applying object-oriented CBD(Component Based Development) technique is to minimize the risk of life cycle and facilitate the reuse of software as mentioned to limitation of information engineering methodology. It enables the interoperability with corporate legacy systems such as ERP(Enterprise Resource Planning), SCM(Supply Chain Management). This system proposes a solution to apply analysis phase and design phase in implementation of XML/EDI system. The implementation of XML/EDI system using CBD shows the ease of use in software reuse and the interoperability with corporate internal information system. The purchasing department with XML/EDI system can electronically communicate purchase orders, delivery schedules to external suppliers and interoperate with other application systems.

• 천문학회보
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• 제41권1호
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• pp.53.3-54
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• 2016

We present a preliminary result of the Fornax cluster survey as a part of the KMTNet Intensive Nearby Southern Galaxy Group Survey (KINGS). We discovered about 200 new dwarf galaxy candidates from the survey of the $8^{\circ}{\times}6^{\circ}$ area around the Fornax cluster. They have magnitudes ranging from V=17.5 to 22 mag (Mv = -13.8 to -9.3), and they are almost complete to V = 20 mag. Surface brightness profiles of most of these galaxies are fit well by a Sersic law with n ~ 1.0. Structural parameters of these galaxies follow well the scaling relations of dwarf galaxies in the fundamental plane. The color-magnitude diagram of these galaxies shows that they are mostly located at the faint end of the red sequence, indicating that they are the probable member of the Fornax cluster. We also derive a luminosity function of the Fornax cluster by combining the new galaxies with the known galaxies in the previous catalogs. We will discuss the future of the KINGS-Fornax.

• 천문학논총
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• 제30권2호
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• pp.503-505
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• 2015

The galaxy cluster is an important object for investigating the large scale structure and evolution of galaxies. Recent wide and deep near-IR surveys provide an opportunity to search for galaxy clusters in the high redshift universe. We have identified candidate clusters of 0.8< z <1.2 from the $25deg^2$ SA22 field using an optical-near-IR dataset from merged UKIDSS DXS, IMS and CFHTLS catalogs. Using these candidates, we investigate the star forming activity of member galaxies. Consequently, at z ~1, the star forming activity of cluster galaxies is not distinguishable from those of field galaxies, which is different from members in local clusters. This means the environmental effect becomes more important for $M_{\ast}>10^{10}M_{\odot}$ galaxies at z <1.

• 한국CDE학회논문집
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• 제11권4호
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• pp.273-288
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• 2006

Information integration of heterogeneous digital parts libraries or electronic pars catalogs is one of issues in B2B procurements. We need to provide an integrated view for multiple information sources. Utilization of ontologies as the metadata descriptions of the information sources can provide an integrated view. However, in order to integrate independently developed ontologies, the mismatches among them should be resolved. In this paper, we propose an ontology of meta-concepts, i.e. meta-ontology. The meta-concepts play the role of vocabulary to describe the parts library ontologies and provide well-established ontological semantics that helps the ontology modelers to consistently identify parts library concepts and systematically structure them. Consequently, the meta-ontology reduces the differences in the way the parts knowledge is interpreted and ensures the mismatches are confined to manageable mis matches, so that a software program can merge automatically. Modeling ontologies of mold and die parts libraries for B2B e-commerce is taken as an example to show how to use the meta-ontology. We also discuss how a parts library mediation system can automatically merge the well-structured parts library ontologies.

• 한국문헌정보학회지
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• 제50권1호
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• pp.493-511
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• 2016

디스커버리는 차세대 도서관 목록과 더불어 도서관 자원의 탐색 기능을 향상하기 위해 대두된 개념이다. 이 논문에서는 정보탐색행태 관점에서 디스커버리 기능을 정의하고, 그 기능을 구성하는 요소를 도출한 후, 공공도서관을 대표하는 11개의 지역대표도서관의 온라인 목록과 3개의 인터넷 서점을 대상으로 탐색과 디스커버리 기능을 평가하여 비교하였다. 평가 결과, 디스커버리를 구성하는 모든 기능에서 인터넷 서점이 도서관 온라인 목록에 비해 우수한 것으로 나타났다. 이를 통해 공공도서관 온라인 목록은 여전히 알고 있는 자료 탐색에 집중하고 있으며, 이용자는 디스커버리 기능을 통해 얻을 수 있는 우연한 발견의 기회를 갖기 어렵다는 것을 확인할 수 있었다.

• 대한가정학회지
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• 제34권3호
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• pp.47-57
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• 1996

Ther purpose of this study was to investigate the perceptual differences in brand images of national medium-low price casual clothing according to purchase volume and brand loyalty. Additionally, differences between Seoul and County of Chungnam in purchase volume of each brand of medium-low priced casual, information source and companion in purchasing the brands were analyzed. The questionnaires were administered to 540 college student living in Seoul and County of Chungnam, and the method used to analyze the data were frequency, factor analysis, and t-test. The results were as follows: 1) Perceptual mapping showed that preference ranks among the six brands were same regardless of purchase volume and brand loyalty, but heavy users and loyal consumers to medium-low priced casual brands had more favorite brand image than light users and non loyal consumers. 2) Those who live in County of Chungnam purchased all six brands more than those who love in Seoul with the exception of Hunt. Information sources such as catalogs and celebrity were more used in County of Chungnam. Most accompanied shopping alone both in Seoul and County of Chyngnam, however family members were more influential in Seoul, whereas the same sex friends were in County of Chyngnam.

• 한국문헌정보학회지
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• 제38권2호
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• pp.119-136
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• 2004

이 연구의 목적은 구십 년대 중반 이후 편목 업무의 부분적 혹은 전면적 외주를 수행하였던 국내외 대학 도서관들의 사례를 분석하여, 대학도서관의 편목 업무 외주의 현황과 그에 관련된 문제점을 살펴보는 것이다. 비용 절감과 업무 효율 증대라는 외주에 대한 기대는 목록 레코드의 품질 저하 및 그에 따른 레코드의 수정 위한 추가 비용과 업무 부담이라는 결과를 초래하여, 외주의 실질적 효과에 대한 논쟁의 원인이 되고 있다. 특히 국내 대학도서관에서의 편목 업무의 외주는 참조할 우수한 서지 유틸리티나 공동목록의 부재, 외주 서비스 제공자의 전문성 결여, 실질적 비용 효과 분석 데이터의 결핍 등의 문제로 인해 타당성이 제한적인 것으로 나타나고 있다.