• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2009.11a
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• pp.127-130
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• 2009

국가 간 문화의 차이에 의하여 생활습관이나 방식이 많이 다르게 나타난다. 그 중에서도 음식은 다른 분야보다 많은 차이를 나타난다. 특히 음식의 종류에 따라 사용되는 음식도구 중 디자인요소가 동일하고 유사한 것이 있거나 다른 요소와 기능을 갖는 경우도 있다. 따라서 각 국가 간의 음식도구를 유니버설 하게 사용할 수 있는 도구 디자인 연구가 필요하다. 본 연구의 목적은 음식에 대한 행동분석프로세스를 개발하여 국가 간 음식문화의 차이에서 오는 공통점과 차이점을 찾아내어 공용으로 사용할 수 있는 음식도구의 디자인요소를 창의성의 관점에서 제안하기 위한 연구이다. 본 연구의 연구방법과 내용으로는 첫째, 음식에 대한 소비자행동 분석 프로세스의 개발 및 관찰을 통하여 행동분석에 대한 이론적 고찰과 현장에서 일어나고 있는 행동분석을 접목하여 음식행동분석프로세스를 개발하였다. 둘째로, 개발된 프로세스를 이용하여 국가 간 음식의 주문부터 평가까지의 과정을 비교 분석하고 나타난 현상에 대한 문제점 파악 및 이에 대한 결과물을 각 국가별 학생들을 대상으로 음식도구에 대한 디자인 개발을 진행하였다. 셋째, 국가별 개발된 디자인 안을 대상으로 선호도, 요인분석, 상관분석을 통하여 국가별 선호요소와 창의성평가요소의 상관관계를 알아보았다. 본 연구를 통하여 얻어지는 효과는 개발된 프로세스를 이용하여 국가별, 음식별, 행동별, 식당형태별로 비교분석이 가능하도록 하게 하고 얻어진 결과를 이용하여 구체적으로 음식도구 디자인에 이용할 수 있으며 국가간 동일 아이템을 디자인 교육시간에 진행시켜 대학의 디자인교육의 비교를 통하여 상호간에 협력과 상호보완으로 새로운 아이디어를 공유, 아이디어 전개에 도움이 될 수 있다.

• The Journal of Society for e-Business Studies
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• v.16 no.1
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• pp.35-47
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• 2011

Augmented reality applications offering location based service on smart phone require attention to users and new usability evaluation methods. The aim of this paper is to introduce new usability principles for application development and usability evaluation, and conduct expert evaluation on the augmented reality applications. We created a set of usability principles by analyzing characteristic of augmented reality applications, and conducted expert evaluation on three augmented reality applications primarily used by smart phone users. In expert evaluation and filtering procedure, we identified six usability problems that three applications have in common and the improvement guideline for the usability problems. The results of expert evaluation was verified by user test with a prototype that was developed using the guidelines. It is expect that the results of this study can be presented usability principles of the augmented reality application and a method of usability evaluation in the middle of new technology development process.

• Journal of the Korea Organic Resources Recycling Association
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• v.8 no.3
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• pp.97-103
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• 2000

This study was performed to prove that vitrified slag can be utilized as sound absorbing materials by investigating on heavy metal elution and the properties of sound absorbing rate according to the thickness. The heavy metal elution experiment indicated that heavy metal was not eluted since it was fixed stable in the slag. Vitrified slag generally exhibited a maximum sound absorbing rate around at 600Hz-1kHz and 3kHz in the low and high frequency range, respectively. On the other hand, the absorbing rate increased beyond the range of 7kHz again. The sound absorbing rate varied a little according to the thickness of the material. However, Vitrified slag is likely to the effective as a sound absorbing wall material since it has a sound absorbing rate clover 80% in the low and high frequency region when used as a wall. The results obtained in this study showed that vitrified slag has the recyclable material properties and therefore, highly applicable to sound absorbing materials.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2003.09a
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• pp.38-38
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• 2003

목적 : 방사선 수술의 목적은 병소에 최대한의 방사선을 조사하고, 주위의 정상조직에는 가능한 적은 양의 방사선을 조사하는 것이다. 이러한 목적을 만족시키기 위해 방사선 수술계획자는 계획시 isocenter의 위치와 개수, 콜리메이터 크기를 변화시켜 가며, 주어진 병소에 맞는 선량분포를 획득해 방사선 수술효과를 최대화시키는 수술계획을 수립한다. 본 연구에서는 다양한 모양의 병소에 대해 자동적으로 isocenter를 위치시켜 수술 계획시 도움이 될 수 있도록 임의의 병소 모델들에 대해 위의 변수들을 변화시켜 가며 얻어지는 선량분포를 비교 분석하였다. 방법 : 본 연구에서는 임의로 정의한 계산 영역내에 다면체를 병소로 가정하여 연구를 수행하였다. 방사선 수술시 하나의 isocenter에서 얻어지는 선량분포는 구형으로 근사할 수 있으므로 하나의 isocenter를 구로 근사하여, 각 병소 모델 내에 콜리메이터 크기를 변화해가며 가능한 많은 영역을 포함하도록 isocenter를 배치시켰다. 이후 구형선량모델을 사용해 선량분포를 획득하여 병소와 정상조직간의 DVH(Dose Volume histogram)와 각 병소 모델에 대한 통일 평면상의 선량분포를 비교 분석하였다. 결과 ; 임의의 다양한 종양 모델에 대한 50%의 등선량 곡선내에서 세 가지의 빔관련 변수들을 변화시킨 결과, 종양이 없는 정상 조직에서는 선량분포가 극히 낮았으며, 콜리메이터의 크기에 따른 isocenter 의 개수가 변화하는 것을 확인할 수 있었고, 이 경우 한 종양모델에서의 깊이에 따른 선량 분포는 크게 차이가 나지 않았다. 그리고, isocenter의 개수가 변화함에 따라 선량곡선이 변하는 것을 확인할 수 있었다. 결론 : 빔관련 변수인 콜리메이터 크기, isocenter 개수, 거리등은 어느 일정 정도를 넘기면, 병소내 선량 분포에 크게 기여하지 않는다는 점을 감안하여 빔관련 변수들을 최소로 고려하므로써 계획시 소모되는 시간 과 노력을 많이 줄일 수 있을 것이며, 또한 각 병소 모델에 대한 최적의 구형선량모델에서 공통적인 규칙성을 찾는 것과 실제 병소의 모양을 간단한 모양으로 근사화 시킨다면 자동적 선량모델을 이루는데 많은 도움이 되고, 이로 인해 효율적인 치료계획작업이 이루어질 것이라 사료된다.

• Journal of the Korean Society of Propulsion Engineers
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• v.11 no.4
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• pp.46-51
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• 2007

The irregular fuel surface was observed by the visualization of hybrid rocket combustion. Even though the test condition maintained oxidizer rich environment, the irregular dark fuel surface was formed as the result of incomplete combustion. In order to investigate the correlation of the characteristics of oxidizer flow and the irregular fuel surface, various flow conditions were imposed such as swirl flow, induced swirl flow by helical fuel configuration and straight flow. Test results revealed no correlation was found between oxidizer flow condition and irregular fuel surface. And this can be a commonly observed phenomena in the tests with different fuel/oxidizer combination. Thus, the irregular fuel surface can be a result of the interaction of blowing flow of vaporized fuel and the boundary layer of oxidizer flow. A further study will be required to confirm the assumption for the formation of irregular fuel surface.

• Journal of Korean Society for Geospatial Information Science
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• v.14 no.4 s.38
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• pp.37-44
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• 2006

To use surveying data obtained from different sensors and different techniques, it is a pre-requite step that register them in a common coordinate system. For this purpose, we developed methodologies to register airborne photos, ALS (Airborne Laser Scanning) data and digital maps. To achieve this, conjugate features from these data should be extracted in advance. In this study, linear features are chosen as conjugate features. Based on such a selection strategy, a simple and robust algorithm is proposed for extracting such features from ALS data. Then, to register them, observation equations are established from similarity measurements of the extracted features and the results was evaluated statistically. The results clearly demonstrate that the proposed algorithms are appropriate to register these data.

• The Journal of the Korea Contents Association
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• v.11 no.8
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• pp.311-320
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• 2011

This study analyzed the persuasive marketing communication strategy which applied by showhost for TV homeshopping sales. Specifically, the current study focuses on the comparative analysis of tangible goods and intangible goods sales. Four sales homeshopping TV programs were selected for analysis: two overseas travel package products, one climbing clothes product and one produce of walnut. The method of rhetorical content analysis was conducted to analyze the strategy of persuasive communication. The results shows that , , were commonly used for both tangible and intangible products sales. But , , and were heavily utilized only for intangible products sales. The result of this study can contribute to provide theoretical background for future advanced research, although it has a limitation of only analyzing four sales programs.

• Journal of the Korean Association of Geographic Information Studies
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• v.3 no.1
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• pp.12-22
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• 2000

Recently urbanization and industrialization around the Nak-dong river watershed have lead to the regional environmental problems. In this viewpoint, we took up variables which were related to watershed environment, and found out spatial and environmental properties of the Nak-dong river using factor analysis, ANOVA test and geographic information system. The results may be summarized as follows; three common factors which were named as urban, agricultural and industrial pollutant factor extracted from statistical methods. Spatial distribution of watershed environment could be found by connection attributes of factor scores derived from factor analysis to digital map using GIS. According to the results, distribution of pollutant sources were concentrated in the main stream of the Nak-dong river and its tributaries, Kum-ho river. So it is necessary to manage the watershed environment in due consideration of environmental carrying capacity.

• Journal of Labour Economics
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• v.29 no.2
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• pp.67-116
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• 2006

This study directly analyzes the wage distributions rather than indirectly looking at a few of their moments. It also investigates wage distributions using various descriptive and semi-parametric methods. The wage distributions of Korean manufacturing industries can in general be represented by three distinct forms, underdeveloped, advanced and the medium of the two. The discrepancies in these distribution forms are explained by differences in the labor-type distributions and their weights in the composition of wage distribution forms, and further clarified through various descriptive statistics based on them. However, the descriptive statistical analysis has a limit in that it shows mixed outcomes of different categoric variables. Then, this problem is resolved by applying a semi-parametric estimation of hazard function and the marginal effect evaluations of variable changes on estimated distributions not on the function. As a result of this marginal analysis, the common features and differences of categoric variables and their intensities of effects on distributions are revealed.

• Proceedings of the KAIS Fall Conference
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• 2008.11a
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• pp.484-487
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• 2008

This study investigates and analyzed to whole public offering listed company whether enterprise's integration information system exercises some influence on business users. Many medium and small enterprise introduce and operate new integrated system, but there was difficulty in Productivity Analysis that is real by unstableness of system, preservation and insufficiency of management control etc. Therefore, in this study, designed study model and research hypothesis laying stress on information strategy, system quality, information quality of information support agents to measure integration information system to relative stable enterprise. This study may become data that is useful in stable system introduction in various field of industry hereafter medium and small enterprises. This study Was construed by thing which degree that give influence of positive in user satisfaction as findings information system quality, quality of service, information support agents is good in study analysis is very high. The other side, information strategy was expose for factor that do not exert big influence on user's satisfaction, and got sequence that is affected in some degree if user satisfaction is high in details article.