• International Journal of Contents
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• 제17권3호
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• pp.48-66
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• 2021

We proposed a B2B food distribution platform by transforming an established food distribution and management platform based on blockchain technology. Our proposed model introduced a method to bring innovation into the domestic B2B food distribution market and systematically manage and utilize massive data (country of origin, producer, transaction, distributor, final consumer) generated within the food distribution process.

• 환경영향평가
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• 제20권3호
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• pp.367-379
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• 2011

This study was conducted to develop an ecological park planning model to enhance the functions of habitats and ecological corridors in Green Belt Areas, because changing policies have resulted in the degredation of the Green Belts due to progressive fragmentation of ecosystems. The principal outcome of the study is to plan an ecological park model through the restoration of habitats. In order to evaluate the capacity of the model to enhance the ecological functions of habitats and ecological corridors in Green Belt Areas, a simulation of habitats was carried out in the Sungnam-Yusoo region. The model was developed via following steps: 1. Selection of candidate sites and selection of the study site by analyzing development factors; 2. Selection of target species that can represent the habitat at the site; 3. Analysis of the site's suitability index for the target species; 4. Establishment of a conceptual plan to enhance and expand the currently produced suitability index; 5. Creation of a master plan based on the conceptual plan; and 6. Evaluation of the enhanced and expanded suitability index of the site. The study showed that the Habitat Unit (HU) of Rana coreana, which was selected as the target species of the study, increased from $28,044m^2$(3.6%) to $224,352m^2$(28.8%), and the HU of the site as the ecological corridor for wild animals increased from $4,674m^2$(0.6%) to $152,684m^2$(19.6%). The study results show that the ecological deficits of the Green Belt Area can be overcome by enhancing the ecological functions of the region, which should be beneficial. The model could be utilized for effective enhancement and management of other Green Belt Areas.

• 경영과학
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• 제11권3호
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• pp.87-102
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• 1994

Conceptual database design is an important activity because the performance of a DBMS heavily depends on the proper design of the database, and view integration is one of the most important phases of conceptual database design. During this phase, the individual views designed by separate user groups are integrated into a global view for the entire system. After the view integration, a database schema must be validated before it becomes a stable product of the design. In this paper, a methodology for view integration an validation is suggested. The individual views are modeled by entity-relationship model. The entities are integrated according to their name and domain information. After that, the relationships are merged by their constraints. We also present a methodology for checking redundant relationships which has an algorithmic description.

• 인문언어
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• 제5권
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• pp.265-289
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• 2003

This paper deals with the polysemous phenomenon of perception verbs in terms of metaphor and metonymy and suggest a model of cognitive semantic structure for them. English perception verbs are often used for representing a mental, cognitive activity as well as representing a physical, perceptive activity. This paper looks for a basis for the polysemous use in the creative system of metaphor and metonymy, especially in the meaning extension function of mind-as-body metaphor. English perception verbs show a good example of a metaphor of domain transfer from physical domain to mental or cognitive domain. This paper suggests the conceptual chain and the semantic structure for the perception verb to show the possibility of polysemy and contextual modulation.

• 한국과학교육학회지
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• 제26권4호
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• pp.510-517
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• 2006

이 연구에서는 화학 개념 학습에서 학생들에게 제공되는 다양한 외적 표상들 간의 연계와 통합을 촉진하는 방안으로서의 그리기에 미치는 상황 흥미, 주의 집중, 인지적 노력의 영향을 조사하였다. 2개 남녀공학 중학교 1학년 178명을 대상으로 '보일의 법칙'과 '샤를의 법칙'에 대해 2차시 동안 그리기를 활용한 수업을 실시하였다. 학생들은 거시적인 현상을 시범 실험을 통해 관찰한 후, 제공된 언어적 정보에 대한 자신의 정신 모형을 그림으로 그리고 이를 시각적 정보와 비교하였다. 사후 검사로 상황 흥미, 주의집중, 인지적 노력, 개념 이해도 검사를 실시하였다. 연구 결과, 상황 흥미는 주의집중에 직접적인 영향을 주고, 주의집중은 직접적으로 또는 인지적 노력을 경유하여 개념 이해도에 긍정적인 영향을 주는 것으로 나타났다. 이런 결과는 그리기에서 처음으로 유발되는 것은 상황 흥미이며, 주의집중과 인지적 노력이 그리기를 통한 개념 이해에 직접적인 영향을 주는 요인일 수 있음을 시사한다. 이에 대한 교육적 함의를 논의하였다.

• International Journal of Aeronautical and Space Sciences
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• 제15권4호
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• pp.383-395
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• 2014

According to the requirement of wing weight estimation and frequent adjustments during aircraft conceptual design, a wing weight estimation method considering the constraints of structural strength and stiffness is proposed to help designers make wing weight estimations rapidly and accurately. This method implements weight predictions on the basis of structure weight optimization with stiffness constraints and strength constraints, which include achievement of wing shape parametric modeling, rapid structure layout, finite element (FE) model automated generation, load calculation, structure analysis, weight optimization, and weight computed based on modeling. A software tool is developed with this wing weight estimation method. This software can realize the whole process of wing weight estimation with the method and the workload of wing weight estimation is reduced because much of the work can be completed by the software. Finally, an example is given to illustrate that this weight estimation method is effective.

• 한국수학사학회지
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• 제17권3호
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• pp.109-120
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• 2004

이 연구는 학과 과제와 기말 프로젝트에 있는 문제들 중에서 컴퓨터를 활용하여 수학적 문제 해결을 해 가는 세 명의 예비 교사를 연구 조사하였다 모든 연구 참여자들의 활동과 컴퓨터를 활용한 문제 해결 과정을 관찰하고 촬영하였다. 가능한 경우 예비 교사들의 탐구활동 전과 후 및 탐구활동 중에 개별적인 면담을 하였다. 자료수집 방법은 관찰, 면담, 현장 기록, 제출과제, 컴퓨터 작업, 오디오와 비디오 테이프를 사용하였다. 수학적 문제 해결 초기 단계에서는, 모든 연구 참여자들이 그래프와 데이터를 사용하여 모델 만들기, 사인 함수의 일반적 개념에 대하여 절차적 지식과 개념적 지식이 약하게 형성되어 있었으나 컴퓨터를 활용한 수학적 문제 해결 활동을 통하여 그들은 절차적 지식과 개념적 지식을 강하게 구성하였고 그들을 적절하게 연계시킬 수 있었다

• Journal of Sport and Applied Science
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• 제6권2호
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• pp.19-25
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• 2022

Purpose: This study attempts to investigate causal and intervening conditions for sport participation of Korean immigrants in the United States. Research design, data, and methodology: Grounded theory approach was used to develop a conceptual framework that presents the psychosocial processes that occur in immigrants' experience of sport participation. Participants were selected purposefully for information-rich cases. Korean immigrants with current experience of having periodically participated in sports were the criterion for sample selection. Based on selection criteria, 9 Korean immigrants took part in interview. The interview discussions were taped and transcribed verbatim into a Word file. The process for data analysis included four grounded theory approaches of purposive and theoretical sampling, an open and axial coding, memo writing, and finally the development of the conceptual framework. Results: Six concepts were revealed in the causal conditions that facilitate the process of immigrants' sport participation in the states: Personal experience, significant others, personality, physical environment, psychological well-being, and social connection. Three concepts were revealed as the intervening conditions that block the process of immigrants' sport participation in the states: Conflict with cultural change of organization, Pressure at workplace, and Economic constraints. Conclusions: Conceptual model presents causal and intervening factors. Further implications were discussed.

• 무역상무연구
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• 제69권
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• pp.453-472
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• 2016

As globalization is widely expanded in Islamic world as well as huge capital like oil-money is looking for new investment areas, our government should keep eyes on the current situation of Muslim market. This study will focus on the research of operation model of Islamic insurance. It will analysis on the institutional aspects of Islamic insurance(Takaful) system, which is a step further on the basis of these previous researches about Islamic finance. Takaful is conducted with various machanism such as Wakala, Mudarabah, Waqf. The mechanism can also be intermingled with one another to form other diverse contracts. However most of them are focused on basic conceptual elements of Islamic insurance system. As public interests in Islamic insurance are increasing these days, many Islam related literatures are issued accordingly. But most of them were focused on basic aspect of Islamic financial system or on the study of business management structure. The conceptual approach to evaluate the Islamic insurance market shall become the foundation of operation in conventional business law and regulation penetrate to the Islamic business environment. Therefore, the research of the operation model in Islamic insurance system as well as the search of trade engineering basis.

• 한국건설관리학회논문집
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• 제2권4호
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• pp.39-47
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• 2001

오늘날 각 산업에서 발생되는 정보의 양은 막대하다. 이러한 정보들은 정보기술의 발달로 인해 비용/시간적인 측면에서 효과적인 성과를 얻고 있다. 그러나, 국내 건설산업에서는 그러하지 못한 실정이다. 건설 프로세스 상에서 발생하는 수많은 정보들을 착용하는데 있어, 단지 일회성이라는 건설산업의 특수성으로 인해 다양한 정보들 또한 한번 활용될 뿐, 재활용되지 못하고 있는 실정이다. 건설공사 프로젝트 라이프 사이클 상에서 특히 발생하는 정보의 양과 중요도가 다른 단계에서 보다 높다는 전에서 현장에서 활용되는 시공정보들을 활용키 위한 방안에 관한 연구가 필요하다. 따라서 현장정보관리를 위한 분류체계를 중심으로 시공정보들을 활용하기 위한 모델을 제시하고자 한다.