• 한국과학교육학회지
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• 제24권2호
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• pp.202-212
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• 2004

The purpose of this study was to examine the connection among inquiry activities related to 'Metabolism' presented in life science textbooks developed according to the national common basic curriculum. To perform this, the type, process and context of inquiry activities of life science textbooks were analyzed. The number of inquiry activities is gradually increased from elementary to secondary school. As result of analysis, types, processes and skills, and context of inquiry were not balanced according to textbooks and school levels. It is suggested that the framework of evaluating inquiry activities based on curriculum objectives be provided when developing science textbooks. It also implies that teachers need to reconstruct inquiry contents and activities suitable to school situations when they teach in the real fields of education.

• Journal of Communications and Networks
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• 제7권2호
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• pp.207-221
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• 2005

The proliferation of wireless local area networks (WLANs) offering high data rate in hot spot area have spurred the demand for possible WLANs and third-generation (3G) cellular network integration solutions as the initiative step towards 4G systems. This paper provides a novel architecture for seamless location-aware integration of WLANs into 3G cellular networks and also an analysis for the efficient handover techniques. We introduce location as a key context in secure roaming mechanism for context-aware interworking in 4G systems. The fast secure roaming with location-aware authentication is implemented at an entity called location-aware service (LAS) broker that utilizes the concepts of direction of user and pre-warming zone. The location-ware interworking architecture supports seamless roaming services among heterogeneous wireless networks including WLANs, wireless metropolitan area networks (WMANs), and 3G cellular networks. This paper also includes a description of procedures needed to implement efficient mobility and location management. We show how the LAS broker with pre-warming and context transfer can obtain significant lower latency in the vertical handover.

• 감성과학
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• 제25권3호
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• pp.107-116
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• 2022

Purpose: Researchers have shown that aesthetic judgments of artworks depend on contexts, such as the authenticity of an artwork (Newman & Bloom, 2011) and an artwork's location of display (Kirk et al., 2009; Silveira et al., 2015). The present study aims to examine whether contextual information related to the creator, such as whether an artwork was created by a human or artificial intelligence (AI), influences viewers' preference judgments of an artwork. Methods: Images of Impressionist landscape paintings were selected as human-made artworks. AI-made artwork stimuli were created using Google's Deep Dream Generator by mimicking the Impressionist style via deep learning algorithms. Participants performed a preference rating task on each of the 108 artwork stimuli accompanied by one of the two creator labels. After this task, an art experience questionnaire (AEQ) was given to participants to examine whether individual differences in art experience influence their preference judgments. Results: Setting AEQ scores as a covariate in a two-way ANCOVA analysis, the stimuli with the human-made context were preferred over the stimuli with the AI-made context. Regarding the types of stimuli, the viewers preferred AI-made stimuli to human-made stimuli. There was no interaction effect between the two factors. Conclusion: These results suggest that preferences for visual artworks are influenced by the contextual information of the creator when the individual differences in art experience are controlled.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제27권3호
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• pp.247-260
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• 2024

수의 범위와 어림하기는 실생활에서 자주 접하고 사용하는 개념이다. 여러 개념과 서로 밀접하게 관련되어 있으며 관련 용어의 정의 및 학습에 대한 연구의 필요성이 강조되고 있다. 수의 범위와 어림하기와 관련된 일곱 가지 수학 용어의 교과서 학습 내용을 용어의 정의와 실생활 맥락을 중심으로 분석하였다. 현재 사용되고 있는 초등 검정 수학 교과서 10종의 내용을 분석한 결과 교육과정에 제시된 성취 기준에 따라 차시가 구성되어 있었으나 교과서마다 각각 차시 구성 및 순서, 실생활 맥락, 정의에 사용된 예시, 강조되는 부분이나 사용된 활동의 내용과 방향 등이 각각 다르게 구성되어 있었다. 분석 결과를 바탕으로 하여 교과서 집필 및 수업 진행에 관련된 교수학적 시사점을 제시하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 하계종합학술대회 논문집(2)
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• pp.451-454
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• 2004

The reconfigurable architecture is increasingly important for design of multi-mode communication systems and computation-intensive DSP systems. The proposed coarse-grain architecture is based on a reconfigurable processing element consisting of a MAC unit, a register file, a context data register, and PE interconnect control blocks. The main feature of the Proposed architecture is the loop context which enables faster configuration. Also, we propose another area-efficient reconfigurable architecture with improved reconfigurability. The SystemC modeling results show that the proposed architecture can reduce 9 clock cycles of 2D DCT compared to existing architectures.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2006년도 가을 학술발표논문집 Vol.33 No.2 (C)
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• pp.387-391
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• 2006

로봇이 적응성을 위해 웹 서비스를 통해 문제를 해결하려고 할 때, 웹 서비스는 서비스의 의미로 서비스를 찾을 수 있는 방법을 제공하지 않아서 원하는 기능의 서비스를 찾기가 어렵다. 하지만 시멘틱 웹에서는 온톨로지를 이용하여 서비스의 의미를 표현하기 때문에 위의 문제를 해결할 수 있다. OWL-S를 이용하면 웹 서비스의 표현을 용이하게 해준다. 하지만 문맥(Context) 정보를 고려한 서비스의 검색이나 검색을 통해 가져온 서비스를 검증하는 수단을 제공하지 않고 있다. 본 논문에서는 OWL-S과 에이전트를 기반으로 하여 적합한 서비스를 찾는 방법을 제안한다.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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• pp.13-19
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• 2001

Unlike that of most management science methodologies, the focus in systems thinking is not on \\\"solving\\\" problems or seeking an optimal solution. Conventional problem solving does not explicitly consider the context of the problem. This implies that the \\\"hospital financial management problem\\\" could be neatly isolated from its environmental and external factors. System thinking and system archetypes, in contrast, acknowledges the messiness of the world and views a problem in the context of its environment. This is one reason why qualitative variables play an important role in system thinking, as these variables represent conditions or phenomena that cannot be measured or accounted in a strictly quantitative approaches. In this paper we present specific healthcare system archetypes which consider such external influences in the healthcare industry in Australia and observe their behavior over time. behavior over time.

• 한국멀티미디어학회논문지
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• 제20권5호
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• pp.791-799
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• 2017

With the development of the internet of things, sensor and device are can be applied to various scenario. Overall improving of the dependability index of internet of things is the ultimate goal. And reliability aims to increase the success rate of internet of things service delivery. Many studies about internet of things system have been made on the system to assess a dependability for providing reliable service to user, but it has difficult to reflect the user context for evaluating the device reliability. Also, most do not consider the availability of content information. In this paper, it proposed dependable device searching system in the internet of things environment. This system evaluates device dependability based on device status and measured data. Through the proposed system, it can be provided reliable context information for user-centric service.

• Asia pacific journal of information systems
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• 제28권1호
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• pp.36-60
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• 2018

As an increasing number of people gained access to social network services (SNS), organizations started to use SNS as a channel for marketing and promotional purposes. The online advertising market has significant growth potential. Brand engagement is a key motive for online advertising, but how SNS users engage with brands, particularly in terms of the promotion of organizations, is poorly understood. This study uses customer value theory to examine brand engagement of users in terms of promoting companies in the context of Korean SNS marketing. This study identifies the antecedents of brand engagement based on customer value theory. Our findings show the significance of three factors of SNS marketing, namely, price discount, relationship support, and convenience, on brand engagement. We further show the consequences of brand engagement, namely, purchase decisions and word-of-mouth activities. These findings help advance customer value theory and offer practical insights into the use of information systems and marketing in the context of SNS.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2006년도 춘계학술대회
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• pp.354-360
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• 2006

The purpose of this paper is to propose a securely personalized context-aware cooperative query that supports a multi-level data abstraction hierarchy and conceptual distance metric among data values, while considering privacy concerns around user context awareness. The conceptual distance expresses a semantic similarity among data values with a quantitative measure, and thus the conceptual distance enables query results to be ranked. To show the feasibility of the methodology proposed in this paper we have implemented a prototype system in the area of site search in a large-scale shopping mall.