• The Journal of the Korea Contents Association
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• v.12 no.4
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• pp.164-173
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• 2012

Recently, while sharing various values of an individual through fast information delivery with the consciousness change of consumers, the trend is now changing by needs of consumers from the trend that companies took the lead in the past. In addition, while jewelries are changed to fashion's consumer goods, it is time that the domestic jewelry industry also needs development of products applied with various colors and visual emotion that consumers demand. Accordingly, much interest in natural colorful gems and the consumption market are being increased in the jewelry industry. Accordingly, this research has progressed the necessity, the status analysis and consumer preference analysis of products development using Semiprecious Stone, and extracted the target market by style and needs of consumers through a consumer trend survey and image analysis survey for development of products. And, this research has set a design directionality by extracting adjectives that can be applied to design preference images by age. This study has confirmed the necessity and possibility of Semiprecious Stone products development based on the analysis of jewelry market.

• 한국신재생에너지학회:학술대회논문집
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• 2006.06a
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• pp.588-592
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• 2006

PV Thermal combined system produces the electricity and thermal energy which are needed for buildings. The system removes heat from PV module through air or liquid, so that its efficiency will be improved. The heat as the forms of hot air or hot water can be utilized for building use, like space heating and hot water. This paper describes the concept of PV Thermal combined system and its research and development trend at local and international levels. This materials can be used as a fundamental study source about PV Thermal combined system to apply fur building space heating.

• Proceedings of the KSR Conference
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• 2007.05a
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• pp.1584-1589
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• 2007

Plug-in type door is installed in recently designed tube. It is world wide trend to fulfill the customer's demand. But, plug-in door need widely gap between doorway and platform and it is raise an serious accident. Therefore, newly designed train must have safety device like a sliding step to prevent incident. This paper present about development process for sliding step. Trend of sliding step, development plan, course, technical description, and etc. will be included in this paper.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.25 no.1
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• pp.5-27
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• 1996

• Proceedings of the Acoustical Society of Korea Conference
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• 1993.06a
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• pp.139-144
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• 1993

• Proceedings of the Korea Contents Association Conference
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• 2014.06a
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• pp.219-220
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• 2014

• Proceedings of the Acoustical Society of Korea Conference
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• 1994.06c
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• pp.271-274
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• 1994

• Journal of Advanced Marine Engineering and Technology
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• v.27 no.5
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• pp.548-554
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• 2003

• Journal of the korean Society of Automotive Engineers
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• v.26 no.1
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• pp.29-32
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• 2004

• Journal of the korean Society of Automotive Engineers
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• v.31 no.2
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• pp.24-32
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• 2009