• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.706-709
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• 2008

최근 u-City나 Eco-City와 같이 IT 기술들이 도시 공간에 융합됨으로써 점차 지능형 도시로 발전되고 있고, 도시에 거주하는 사람들은 자신의 주변 상황에 맞게 자연스럽게 필요한 서비스를 제공 받게 될 것이다. 이와 같이 향후 유비쿼터스 도시 운영을 위해서는 다양한 GeoSensor를 도시 전체에 구축하고 계속해서 모니터링 해야 만 한다. 본 논문에서 제안한 룰 기반의 이벤트 처리 기술은 넓은 지역에 걸쳐 구축되어 있는 GeoSensor 네트워크로부터 센서 데이터를 수집하여 도시내에 발생되는 다양한 상황들을 효과적으로 모니터링 할 수 있다.

• Proceedings of the KSRS Conference
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• 2005.10a
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• pp.237-240
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• 2005

Calibration and Validation are major element of any space borne Earth Observation Mission. These activities are the major objective of the commissioning phases but routine activities shall be maintained during the whole mission in order to maintain the quality of the product delivered to the users or at least to fully characterise the evolution with time of the product quality. With the launch of ERS-l in 1991, the European Space Agency decided to put in place a group dedicated to these activities, along with the daily monitoring of the product quality for anomaly detection and algorithm evolution. These four elements are all strongly linked together. Today this group is fully responsible for the monitoring of two ESA missions, ERS-2 and Envisat, for a total of 12 instruments of various types, preparing itself for the Earth Explorer series of five. other satellites (Cryosat, Goce, SMOS, ADM-Aeolus, Swarm) and at various levels in past and future Third Party Missions such as Landsat, J-ERS, ALOS and KOMPSAT. The Joint proposal by the European Union and the European Space Agency for a 'Global Monitoring for Environment and Security' project (GMES), triggers a review of the scope of these activities in a much wider framework than the handling of single missions with specific tools, methods and activities. Because of the global objective of this proposal, it is necessary to put in place Multi-Mission Calibration and Validation systems and procedures. GMES Calibration and Validation activities will rely on multi source data access, interoperability, long-term data preservation, and definition standards to facilitate the above objectives. The scope of this presentation is to give an overview of the current Calibration and Validation activities at ESA, and the planned evolution in the context of GMES.

• The Transactions of the Korea Information Processing Society
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• v.3 no.5
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• pp.1059-1069
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• 1996

The purpose of this paper is to examine some effects of four menu types: icon menu, context menu, pulldown menu, and bar selection menu. In order to find whether there are some effects of menu types or learning stages (the first, intermediate and the last stage) on skill-based errors, each of the menus has been studied in relation to hyperemia instruction, menu search time, scholastic a chievements and learners' metacognitionon their errors. A further purpose of this paper is to suggest some strategies for enabling learner to select menus more efficiently in order to enhance the learner's own learning effectiveness in hypere mia instruction.The results of this study are as follows. The menu types had a significant effect on the low metacognition regulation group. The context menu types had a significant effect on achievements. In contrast, it was also noticed he the menu types did not have any significant effect on the high metacognition regulation group. The bar-selection menu type and the icon menu type had a relatively significant effect on skill-based errors in the first stage of learning.

• Coupled systems mechanics
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• v.7 no.4
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• pp.455-483
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• 2018

The study deals with physical modeling of a typical three storeyed building frame supported by a pile group of four piles ($2{\times}2$) embedded in cohesive soil mass using three dimensional finite element analysis. For the purpose of modeling, the elements such as beams, slabs and columns, of the superstructure frame; and that of the pile foundation such as pile and pile cap are descretized using twenty noded isoparametric continuum elements. The interface between the pile and the soil is idealized using sixteen node isoparametric surface element. The soil elements are modeled using eight nodes, nine nodes and twelve node continuum elements. The present study considers the linear elastic behaviour of the elements of superstructure and substructure (i.e., foundation). The soil is assumed to behave non-linear. The parametric study is carried out for studying the effect of soil- structure interaction on response of the frame on the premise of sub-structure approach. The frame is analyzed initially without considering the effect of the foundation (non-interaction analysis) and then, the pile foundation is evaluated independently to obtain the equivalent stiffness; and these values are used in the interaction analysis. The spacing between the piles in a group is varied to evaluate its effect on the interactive behaviour of frame in the context of two embedment depth ratios. The response of the frame included the horizontal displacement at the level of each storey, shear force in beams, axial force in columns along with the bending moments in beams and columns. The effect of the soil- structure interaction is observed to be significant for the configuration of the pile groups and in the context of non-linear behaviour of soil.

• The Journal of Korean Association of Computer Education
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• v.16 no.6
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• pp.71-81
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• 2013

This study was executed to give a help in planning and implementing online learning. For this purpose this study investigated the effect of contents presentation types, levels and metacognition on concept map composition and learning process in online learning. Learning contents types were two, meaning-centered or context-centered. Contents levels were divided into two; basic or deficient. Metacognition was divided into two levels according to the scores of scale. Results showed that meaning-centered type(M=45.00, SE=1.97) got better scores in concept map than context-centered(M=34.71, SE=1.98), Presentation levels and metacognition had no significant influence on concept map. There were interaction effect(F=.002, p>.05) between presentation levels and metacogntion levels. The upper group in metacognition got higher score in deficient types whereas the lower group got higher score in basic type. In online learning process, learner's metacognition was an important factor to complement the contents' defect and lack.

• The Journal of the Korea Contents Association
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• v.11 no.8
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• pp.260-273
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• 2011

Utilizing cross-functional project teams is an attractive organizing option, particularly in solving complex and innovative problems that require diverse sources of information, knowledge, and expertise brought by individuals from different functional backgrounds. This study is aiming at finding the group dynamics surrounding and inside the teams for the better understand what makes cross-functional project teams effective. Adopting variables from small group research and organizational context research, I extract critical antecedents, mediator, and team-coaching that lead to team performance. Data from 32 cross-functional project teams consisting of 214 individual respondents are analyzed through regression analyses for hypotheses testing. Results of the analyses demonstrate that the team process and team performance are significantly affected by the composition of competence in team and team compensation. Also I find that team-coaching as a leadership behavior has influence on team process and team performance. Some implications, future research directions, and limitations are discussed.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.35-45
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• 2017

This study aims to explore the effect of quality factors and learning styles on users' satisfaction in e-Learning context. For this purpose, statistical methods such as reliability test, factor analysis, ANOVA, regression analysis were carried out using the survey data from university students. The quality factors of e-Learning were classified into contents, system, service, and interpersonal activities while learning styles were classified into positive-cooperative, self-directed, environmental-dependent, and passive styles. The results showed that each quality factors of e-Learning has a strong positive effect on user satisfaction, and self-directed group has higher satisfaction than other groups. Learning styles have moderating effects on the quality-satisfaction relationship, and especially, the group of passive learning style has a strong moderating effect on the interpersonal activities. Theoretical and practical implications and future research directions are drawn from these findings.

• Fashion & Textile Research Journal
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• v.12 no.3
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• pp.302-309
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• 2010

The purposes of this study were to examine whether the e-promotion interest was an influencing variable on promotion-acceptance attitudes, browsing, consumer satisfaction and e-loyalty, and to investigate the predictors for e-loyalty of shopping mall according to e-promotion interests. A questionnaire was developed based on the previous researches. Data were obtained from 555 adults who had purchased fashion products in online shopping. Data were analyzed using by factor analysis, Cronbach's alpha, t-test and regression. The results showed that consumers with high e-promotion interests were more likely to accept e-promotions affectively and behaviorally, to have hedonic and utilitarian browsing, to satisfy the online shopping, and to make e-loyalty compared to them with low e-promotion interests. For high interested group in e-promotion, the more cognitive and affective attitudes toward promotion acceptance they were the greater e-loyalty in the context of online shopping for fashion products. Additionally, the more hedonic browsing and satisfy the online shopping they were the greater e-loyalty of shopping mall at Internet. However, for low interested group in e-promotion interests, the more utilitarian browsing and satisfy the online shopping they were the greater e-loyalty of online shopping for fashion products. It implies that consumer' e-promotion interest was an influencing variable on promotion-acceptance attitudes, browsing, consumer satisfaction and e-loyalty in online shopping for fashion products. Consumer satisfaction played an important role for making e-loyalty of fashion shopping malls. These findings are discussed in terms of insights for developing the strategies of encouraging to make the loyalty of shopping mall in the context of purchasing fashion products at Internet.

• Journal of Educational Research in Mathematics
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• v.18 no.2
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• pp.201-221
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• 2008

This study discusses how the humanity mathematics education can be realized in practice. The essence of mathematical concept is gradually disclosed revealing the ambiguities in the concept currently accepted and clarifying them. Historical development of mathematical concepts has progressed as such, exemplified with the group-theoretical thought and continuous function. In learning of mathematical concepts, thus, students have to recognize, reveal and clarify the ambiguities that intuitive and context-dependent definitions in school mathematics have. We present the process of improvement of definitions of a tangent and a polygon in school mathematics as examples. In the process, students may recognize the limitations of their thoughts and reform them with feelings of humility and satisfaction. Therefore this learning process would contribute to cultivating students' minds as the humanity mathematics education pursues.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.257-266
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• 2019

This study has attempted to study self-cultural skills about my experience in life with a spouse with a physical disability with myself. The 'autoethnography' is a combination of an autobiography describing a personal and subjective life and a ethnography that studies the culture of a social group, and it is a way of expressing self-narrative experiences and experiences related to the context or context of a social group. The analysis showed that the researcher divided into three periods, one for the researcher himself, and defined the first for 'the single life that seemed to last forever'. The second period was the meeting of the disabled facility called 'The Village of the Virgin Mary'. The Third period is the time of meeting with the disabled partner and the life with him, and it is the time to experience a spouse with a rather sensitive disability. Last, it's the time of understanding and effort for my physical disability partner. Qualitative research is a research process that must be understood based on a unique methodological research tradition that explores social or human problems. And, we expect to expand into more analytical and systematic research in future research.