• 한국가정과교육학회지
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• 제22권2호
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• pp.61-79
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• 2010

본 연구는 현장에서 '생애설계와 진로탐색' 단원의 효과적인 수업을 위한 기초자료를 제공하고 도서관을 활용한 실천적 문제 중심 학습의 활용 가능성을 제시하는데 목적을 두고 설계되었다. 제7차 교육과정 고등학교 10학년 12종 교과서의 '생활설계' 단원과, 2007 개정 교육과정 해설서의 9학년 '생애설계와 진로탐색' 단원에 대한 내용을 분석한 결과를 바탕으로 실천적 문제를 정의하고 '생애설계와 진로탐색' 단원의 내용을 재구성하여 10차시의 학교도서관을 활용한 실천적 문제중심 가정과 교수-학습 과정안을 개발하였다. 경기도 S고등학교의 재학생 139명을 대상으로 실험집단에는 개발된 학교도서관을 활용한 문제중심 수업을 도서관에서, 비교집단에는 동일주제를 가지고 교실에서 수업을 진행한 후 '생애설계와 진로탐색' 단원에 대한 의식 및 태도와 가정과에 대한 인식의 향상정도를 공변량 분석(ANCOVA)으로 알아보고, 학생의 수업방법에 대한 만족도를 살펴보았다. 연구결과, 개발된 도서관을 활용한 실천적 문제중심 수업은 교실에서의 실천적 문제중심 수업보다 '생애설계와 진로탐색'과 관련된 바람직한 의식과 태도를 형성하고 발전시키는데 크게 영향을 미치는 것으로 나타났다. 또한, 가정교과를, 과학지식을 가정생활에 응용하는 능력을 기르는 교과, 가정과 연결된 사회문제 분석 능력을 기르는 교과, 주변사람들을 돌보고 존중하는 능력을 기르는 교과, 현대사회에서 중요한 교과라고 긍정적으로 인식하게 하는데 영향을 미치고 있었으며, 수업방법과 수업 전반에 대한 학생들의 만족도가 매우 높은 것으로 나타났다.

• 산경연구논집
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• 제11권6호
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• pp.41-53
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• 2020

Purpose: The purpose of this study is to review the previous studies on the characteristics of the image search service provided by using artificial intelligence, the social impact characteristics, and the moderating effect of perceived anthropomorphism, and conduct empirical analysis to identify the constituent factors affecting purchase intention. To clarify. Through this, I tried to present theoretical and practical implications. Research design, data, and methodology: Research design was that characteristics of image search service (ubiquity and information quality) and social impact characteristics (subjective norms, electronic word of mouth marketing) are affected by mediation of satisfaction and flow, therefore, control of perceived anthropomorphism have an effect on purchase intention to increase. For analysis, research conducted literature review, and developed questionnaires, so that EM firm which is a specialized research institute has collected data. This was conducted on 410 people between the 20s and 50s who have mobile shopping experiences. SPSS Statistics 23 and AMOS 23 had been used to perform necessary analysis such as exploratory factor analysis, reliability analysis, feasibility analysis, and structural equation modeling based on this data. Results: first, ubiquity, information quality and subjective norms were found to have a positive effect on purchase intention through satisfaction and flow parameters. Second, satisfaction and flow were found to have a mediating effect between ubiquity, information quality, and subjective norms and purchase intentions. However, there was no mediating effect between eWOM information and purchase intention. Third, perceived anthropomorphism was found to have a moderating effect between information quality and satisfaction, and it was found that there was no moderating effect on the relationship between information quality and flow. Conclusions: The information quality of image search services using artificial intelligence has a positive effect on satisfaction, and it has been found that there is a positive moderate effect of perceived anthropomorphism in this relationship, which may be an academic contribution to the distribution science utilizing artificial intelligence. Therefore, it is possible to propose a distribution strategy that improves purchase intention by utilizing image search service and anthropomorphism in practical business and providing a more enjoyable immersive experience to customers.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집D
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• pp.961-966
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• 2001

The Wells turbine is one of the simplest and most promising self-rectifying air turbines which are useful for the systems of alternative energy development in near future, and it is economically desirable from the point of view of the practical use, as well. To investigate the effect of blade sweep on the performance of the Wells turbine, computations of a fully 3-D Navier-Stokes are carried out under steady flow conditions of NACA0020 blade. It is known that the performance of the Wells turbine is considerably influenced by the blade sweep. An optimum blade sweep ratio(f=0.35) for the NACA0020 is found to be the most promising for the practical use, and this value is in good agreement with the previous experiments. It is also found that the overall turbine performance for the NACA0020 is better than that for the CA9.

• 한국세라믹학회지
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• 제50권2호
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• pp.116-121
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• 2013

Zinc crystal glaze has its limits in practical use of commercial glaze due to the controlling crystal. In order to overcome this limit, and to heighten the practical usage, this study is aimed to develop artificially controlling willemite ($Zn_2SiO_4$) zinc crystalline glaze. For this purpose, it has experimented with the effect of anatase form and rutile form using $TiO_2$ known as nucleating agent. In zinc glaze, adding $TiO_2$ resulted with anatase form becoming more effective at nucleating formation and growth of willemite than the rutile form. Furthermore, it turned out that using the $TiO_2$ - anatase form, with synthetic seeds (zinc silicate), the numbers and positions of crystals can be controlled artificially.

• Environmental Analysis Health and Toxicology
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• 제16권2호
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• pp.67-74
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• 2001

In a previous study by Kim et al. (2000), sodium hypochlorite (NaOCl) has been demonstrated to be effective against algae that cause red tides. To secure the environmental safely of the chemical in practical use, effect of NaOCl, at concentrations required for algicidal activity, on the histology of rockfish and little neck clam was examined. When the animals were exposed to NaOCl at concentrations of 0.5 or 2ppm for 1 hr, there was no exposure-associated histological change in either animal. As the experimental exposure condition was set in consideration of the use, our results provide safety information necessary for practical application to marine fields.

• 전자공학회논문지A
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• 제31A권1호
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• pp.9-16
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• 1994

In this paper, we propose a frequency assignment algorithm to minimize intermodulation effect which is caused by nonlinear amplipification of the satellite transponder. Allmost all of the published algorithms up to now are applicable to one-level SCPC systems, the application range of those algorithms is very restricted from the viewpoint of actual practice. In this paper, we develope and propose a new frequency assignment algorithm which utilize the basic concept of Okinaka's DELINS-INSDEL algorithm to extend its applicabilty from one-level SCPC systems to multi-level systems. The proposed TDTI algorithm provides considerable generality in reducing intermodulation effect in practical satellite communication systems because of its alpplicability to multi-level and multi-bandwidth systems as well as one-level systems. Besides the TDTI algorithm which shows excellent characteristics in performance but requires somewhat long excution time. the WTDI-SDELINS algorithm is proposed in this paper to compensate TDTI's demerits in excution time. Considering the fact that there are very little published sterategies for multi-level and muti-bandwidth systems. the algorithm proposed in this paper is quite meaningful.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2006년도 추계 학술대회논문집
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• pp.20-21
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• 2006

Three kinds of jet flows encountered in the practical airframe design phase are discussed in this paper. Firstly, the side jet effect on the cavity flow over the flat plate was investigated. Secondly, the aerodynamic modeling of side jet influence on body-tail configuration was presented. Computational study of the similarity parameters was done to minimize the wind tunnel test. Lastly, supersonic jet impingement on a flat plate surrounded by solid walls was simulated numerically for both axi-symmetric and three-dimensional calculations with moving body method.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2006년도 춘계 학술대회 개요집
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• pp.77-79
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• 2006

To achieve high productivity of assembly hull blocks, it is important to predict welding deformations accurately and to apply these data to the production planning. In the deformation analysis of hull block, simplified methods (elastic analysis) such as inherent method, equivalent loading method and local & global approach are usually used instead of thermal-elastic-plastic analysis because of calculating time and cost. To be much more practical, these simplified methods should consider gravity effect of plate and contact condition between the plate and the positioning jig. In this research, using finite element method, practical predicting method for the welding deformation of the curved hull blocks with considering welding sequence, gravity effect and contact condition is proposed.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2005년도 추계학술발표대회 개요집
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• pp.17-19
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• 2005

To achieve high productivity of assembly hull blocks, it is important to predict welding deformations accurately and to apply these data to the production planning. In the deformation analysis of hull block, simplified methods (elastic analysis) such as inherent method, equivalent loading method and local & global approach are usually used instead of thermal-elastic-plastic analysis because of calculating time and cost. To be much more practical, these simplified methods should consider gravity effect of plate and contact condition between the plate and the positioning jig. In this research, using finite element method, practical predicting method for the welding deformation of the curved hull blocks with considering welding sequence, gravity effect and contact condition is proposed.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제20권3호
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• pp.343-359
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• 2006

본 연구에서는 고등학교 수학I의 수열 단원을 바탕으로 학습자의 흥미유발 및 사고력 계발 육성을 위해, 실생활 소재 및 게임, 영화 속에서 수학적 내용을 추출하여 예화문제를 개발하고, 교수 학습이 학생들에게 미치는 효과를 조사하였다.