• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.65.2-65.2
• /
• 2007

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.25.2-25.2
• /
• 2007

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.25.1-25.1
• /
• 2007

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.24.1-24.1
• /
• 2007

• The Bulletin of The Korean Astronomical Society
• /
• v.32 no.2
• /
• pp.65.1-65.1
• /
• 2007

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2009.10a
• /
• pp.364-365
• /
• 2009

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.54 no.sup1
• /
• pp.26.2-26.2
• /
• 2009

• Proceedings of the Korean Society of Propulsion Engineers Conference
• /
• 2008.11a
• /
• pp.211-214
• /
• 2008

Many types of new Korean Firearms were developed during the reign of King Se Jong(1418$\sim$1450). After the Chong-Tong-Deung-Rok(1448), The Ju-hwa was renamed as the Sin-Gi-Jeon. There was four kinds of rocket propelled arrows : So(small), Chung(medium), Dae(large) and San-hwa(multiple bomblets)-Sin-Gi-Jeon. Dae-Sin-Gi-Jeon known to be the best and biggest of any rocket propelled arrows in the 15th century. This paper describes Yak-Tong(propellant case made by paper) of Dae-Sin-Gi-Jeon.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2012.08a
• /
• pp.88-88
• /
• 2012

High efficiency thin film photovoltaic device technology is reviewed. At present market situation, the industrial players of thin film technologies have to confront the great recession and need to change their market strategies and find technical alternatives again. Most recent technology trends and technical or industrial progress for Silicon thin film and CIGS are introduced and common interests for high efficiency and reliability are discussed.

• 대한생식의학회:학술대회논문집
• /
• 2001.06a
• /
• pp.77-78
• /
• 2001