• Korean journal of communication and information
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• v.75
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• pp.9-42
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• 2016

This study critically examines the social and personal meanings that luxury consumption have in contemporary Korean society through understanding the consumption experiences of men in their 30s. Interviews with nine male consumers who are committed to luxury brands, especially those that produce suits, watches, fountain pens, and shoes, were conducted to collect qualitative data. We found that participants are satisfied with the whole process of luxury brand consumption including buying, using, and managing and try to consume the products for self-expression, congruent with their lifestyle and identity. Individuals have learned how to consume the luxury brand from their role models. Their consumption follows hybrid and postmodern patterns and combines luxury brand products with non-luxury one. In contemporary Korean society, using the luxury products is considered necessary to achieve some advantages in social contexts and can be also functioned as a sort of social signifier and self-help, as well as, a tool for self satisfaction or well-being.

• Journal of Digital Contents Society
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• v.16 no.5
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• pp.783-793
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• 2015

TV display which existed only in house started to show up out of house around us and now it found naturally its place in everywhere like street, bus, subway and elevator. It is called digital signage which showed up through digitalization of sign, that is, sign board and bulletin board. The distinction of digital sign from existing signs is that the latter one should go through physical process like removal after installation every time its contents are changed but the former one can produce its various outputs flexibly once it is installed. Also existing sign may be static image or 2 or 3 pieces of image to express simple motion while digital sign can contain multi media contents luxurious in design and motion. This paper confined the range of contents in digital signage in bus and subway. It needs to analyze characteristics of mass transportation-people of use, consumer by place and time, accommodation environment for consumer etc and arrange planned contents along with time and place. Developments of dedicated contents suitable to those digital signages will harmonize with place and time and promote the realm of digital signage which provides variety of experience to consumer and with which communication is possible and which is distinctive. Furthermore we may expect the birth of smart signage as a new media, in which fun and art are combined.

• Journal of The Korean Association For Science Education
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• v.34 no.6
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• pp.583-592
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• 2014

The purpose of this study is to investigate the impact of argument-based modeling strategy using scientific writing on student's modeling ability. For this study, 66 students (three classes) from the 7th grade were selected and of these, 43 students (two classes) were assigned to two experimental groups while the other 23 students (one class) were assigned to comparative group. In the experimental groups, one group (22 students) was Argument-based multimodal Representation and Modeling (AbRM), and the other group (21 students) was Argument-based Modeling (AbM). Modeling ability consisted of identifying the problem, structuring of scientific concepts, adequacy of claim and evidence and index of multimodal representation. As for the modeling ability, AbRM group scored significantly higher than the other groups, AbM group was significantly higher than comparative group. The four sub-elements of modeling ability in the AbRM group was significantly higher than the other groups statistically and AbM group scored significantly higher than comparative group. From these results, the argument-based modeling strategy using scientific writing was effective on students' modeling ability. Students organized or expressed the model and evaluated or modified it through the process of argument-based modeling using scientific writing and the exchange of opinions with others by scientific language as argument and writing.

• Journal of Korea Water Resources Association
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• v.45 no.1
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• pp.91-99
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• 2012

In this study, it was proposed that extension techniques of 8 day interval recorded stream-flow data which has been produced at the mouth of unit watersheds for TMDLs to daily one. The concept of this method was that the missing data at partial recording station was filled by using the daily data at a nearby, hydrologically similar streamgaging station. First, same day stream-flow was extracted from the daily stream-flow. Then, the extension equation was developed based on the sample data when the same day stream-flow from daily data and the partially recorded stream-flow was deeply related each other. The missing data was interpolated or extrapolated by the equation. Especially the maintenance of variance extension (MOVE) technique was used to derive the equation and was validated. Finally the 8-day interval recorded stream-flow at the mouth of unit watersheds in Han River Basin for TMDLs was extended to continuously daily data by using the method proposed in this study. And the low flow at each unit watershed was evaluated according to the flow-duration curve.

• Journal of Korea Water Resources Association
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• v.47 no.11
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• pp.1095-1105
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• 2014

A spatial downscaling method using the Support Vector Machine (SVM) Regression for 25 km Tropical Rainfall Measuring Mission (TRMM) Monthly precipitation is proposed. The nonlinear relationship among hydrometeorological variables and precipitation was effectively depicted by the SVM for predicting downscaled grid precipitation. The accuracy of spatially downscaled precipitation was estimated by comparing with rain gauge data from sixty-four stations and found to be improved than the original TRMM data in overall. Especially the positive bias of the original TRMM data was effectively removed after the downscaling procedure. The spatial distributions of 25 km and 1 km grid precipitation were generally similar, while the local spatial trend was better detected by 1 km grid precipitation. The downscaled grid data derived from the proposed method can be applied in hydrological modelling for higher accuracy and further be studied for developing optimized downscaling method incorporation other regression methods.

• Journal of the Korean Society for Library and Information Science
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• v.49 no.2
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• pp.51-73
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• 2015

The Web now provides instant access to an unprecedented amount of information that was unthinkable even 20-30 years ago. However, the full potential of the contents available through the Internet can only be realized when one can speak and understand foreign languages, especially English which accounts for more than half of web contents. In this study, we try to investigate the effect of search task languages and task complexity on searching performance. A total of thirty students enrolled at a top private university in Korea were recruited as study subjects. We set up a quasi-experimental design in which thirty subjects are randomly assigned to a set of eight different search tasks containing an equal number of simple and complex tasks and an equal number of tasks in Korean and in English. The results show that there is a significant difference between simple and complex tasks in terms of SERP time, number of queries used, correctness of results and total search time. However, task language does not seem to have affected search performance for this study group. In addition, students with high English proficiency test scores show comparable search performance in English tasks compared with lower test scores. But we note differences in behavioral patterns (different search engines used and search tactics) among the study participants.

• Journal of Life Science
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• v.26 no.8
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• pp.983-989
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• 2016

All cells composing of our body undergo their destiny such as proliferation, differentiation, necrosis, apoptosis and senescence depending on their circumstance with time. The errors occurring in these processes develop several aberrations in phenotypes including cancer, inflammation, aging and diseases. New strategy and approach are required to screen anti-aging compounds derived from natural products. Therefore, here we explain the target proteins to play a key role in aging mechanism. In the first place, matrix metalloproteinases (MMPs) are involved in metastasis, chronic inflammation and skin aging as an aging marker. In particular, histone deacetylases (HDACs) give a great attention to aging researchers who try to extend the life span of animal model. In addition, we describe the signaling pathway related to senescence which p53, IGF-1 and SIRT1 play an important role in. Furthermore, autophagy is involved in the signaling pathway associated with aging. Several new compounds modulating the signaling pathway of senescence are introduced in this review. Here, we try to provide a new insight in the molecular basis for the aging mechanism and development of aging marker. In addition, the compounds introduced here could be available for pharmaceutical applications for the prevention and the treatment of diseases related to aging.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.31 no.1
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• pp.43-66
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• 2020

This study analyzed Korean children's books that include ethnically and racially diverse characters, focusing on representation of ethnic minority and cultural sensitivity. Drawing from fiction recommendations by Happy Morning Reading from 2005 to 2017, only 32 books out of 3,214 books, less than 1%, include people with racially and ethnically diverse background. Among the 32 books, 23 featured educative messages inspired by the belief of social justice; four could be categorized as so-called 'melting pot' books, five depicted stories featuring characters that respect different cultures from their own. The issue tackled in the stories differed with the economical standing of the character's country of origin. When a character or her/his parent is from a developing country, the main issues of the book were racial discrimination, bullying, hostility against foreign-born parents, or harsh experience of migrant workers. On the other hand, when a character or her/his parent is from a developed country, the plots often surround the character's hopes, wishes, or personal worries. Only one book was illustrated by a person with immigration background; the others were all written and illustrated by Koreans with no immigration background.

• Archives of design research
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• v.17 no.4
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• pp.15-26
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• 2004

After 19th century of Chosun Dynasty Gilsnagmunja-do such as longevity, good fortune, health, well-being which was explosively prevalent and Hyojemunja-do which was panoramically decorated with eight characters of filial piety, fraternal devotion, loyalty, trust, courtesy, commitment, integrity and humility for enlightment of the public under the name of political ideology are consistency or same origin in traditional concept of Orient. Therefore, in view of Western standard, they are showing an illustration and a photograph of characters in design. There are some differences in way of expressions. They were considerably popular not only in Chosun Dynasty but in China, Japan and Vietnam where belong to the cultural territory of chinese characters. Though, Hyojemunja-do which was built-up in the late period of Chosun Dynasty and developed fro chinese mode is a very peculiar iconography and mode of Chosun Dynasty. Hyojemunja-do is also classified from Chinese Nianhua designed for supply of Conficianism ethics or Folk Painting designed for practical use in chinese cultural territory. In the late period of 19th century, Hyojemunja-do which was re-built with creative modeling has been developed in peculiar mode in the province of Kyunggi, Kangwon(Kwan dong region), Kwanseo region, Jeju island and Namdo region by the diversified level of painters.

• The Transactions of the Korea Information Processing Society
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• v.7 no.3
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• pp.879-890
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• 2000

Designing a multilevel database application is a complex process, and the entities and their associated security levels must be represented using an appropriate model unambiguously. It is also important to capture the semantics of a multilevel databse application as accurate and complete as possible. Owing to the focus of the IDEA Methodology for designing the non-secure database applications on the data-intensive systems, the Object Model describes the static structure of the objects in an application and their relationships. That is, the Object Model in the IDEA Methodology is an extended Entity-Relationship model giving a static description of objects. The IDEA Methodology has not been developed the multilevel secure database applications, but by using an existing methodology we could take advantage of the various techniques that have already been developed for that methodology. That is, this way is easier to design the multilevel secure schema than to develop a new model from scratch. This paper adds the security features 새？ Object Model in the IDEA Methodology, and presents the transformation from this model to a multilevel secure object oriented schema. This schema will be the preliminary work which can be the general scheme for the automatic mapping to the various commercial multilevel secure database management system such as Informix-Online/Secure, Trusted ORACLE, and Sybase Secure SQL Server.