• IEIE Transactions on Smart Processing and Computing
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• v.3 no.2
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• pp.88-95
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• 2014

This paper proposes a novel desktop virtual reality system. Based on the position of the user's face, the proposed system selects the most appropriate image of an object from a set of photographs taken at various angles, and simply "pastes" it onto the display at the appropriate location and scale. Using this system, the users can intuitively feel the presence of the object.

• The Optical Journal
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• s.145
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• pp.41-44
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• 2013

지난 4월 4일부터 7일까지 나흘간 열린 '2013 서울국제사진영상기자재전(PHOTO&IMAGING 2013)'이 역대 최다 관람객인 7만 5000여 명을 동원하며 성황리에 막을 내렸다. 한국광학기기산업협회, 코엑스, 한국사진영상기재협회 주최로 삼성 코엑스 본관 1층 A, B홀에서 열린 이번 행사에는 삼성, 캐논, 니콘, 세기P&C, 한국후지필름 등 21개 나라에서 197개 업체가 748부스 규모로 참가해 촬영부터 인화까지 영진 영상에 관한 다양한 제품, 콘텐츠 등을 선보였다.

• Solar Energy
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• v.8 no.2
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• pp.39-45
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• 1988

Photo-decomposition experiments to produce hydrogen from organic compound such as alcohols and organic acids were investigated using the Korean natural ilmenite, which was used as ore itself as well as the calcined in vacuum. The decomposition activities of alcohol on ore (30-60 mesh) which was not calcined did not decrease even if it was repeatedly used. But crushed ore which had newly formed ilmenite surface revealed enhanced activities. The ilmenite powder calcined in vacuum showed 3-8 times higher activies than the ore powder itself and also the decomposition activity of formic acid was much higher than that of alcohols.

• Bulletin of the Korean Chemical Society
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• v.28 no.4
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• pp.619-623
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• 2007

Synthesis of 4-substituted 3-exo-methylenechroman derivatives was carried out by the n-Bu3SnH-mediated vinyl radical cyclization as the key step starting from various salicylaldehydes.

• Bulletin of the Korean Chemical Society
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• v.27 no.1
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• pp.130-132
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• 2006

• Bulletin of the Korean Chemical Society
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• v.14 no.5
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• pp.614-618
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• 1993

The photoacid generation efficiency of four N-hydroxyphthalimide sulfonate derivatives was studied by photo-crosslinking reaction of poly(glycidyl methacrylate) in solid film state. The relative photoacid generation efficiency was increased in the order of N-hydroxyphthalimide methanesulfonate > -toluenesulfonate > -nitrobenzenesulfonate > -dinitrobenzensulfonate, and the reaction was efficiently sensitized by benzophenone suggesting that this photoreactions is likely to proceed through its triplet excited state.

• Bulletin of the Korean Chemical Society
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• v.8 no.3
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• pp.202-205
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• 1987

The reduction of some cyclic conjugated enones with electron-donating substituent on C-3 by sodium borohydride was accelerated on irradiation. The photo-enhanced reduction seems to undergo through zwitterionic species formed from the (n, ${\pi}^{\ast}$) triplet state of conjugated enones, followed by hydride attack to yield unsaturated or saturated alcohols.

• The Optical Journal
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• v.13 no.6 s.76
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• pp.37-41
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• 2001

• The Optical Journal
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• v.3 no.16 s.16
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• pp.20-26
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• 1991

• The Optical Journal
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• v.8 no.2 s.42
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• pp.69-70
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• 1996