• Proceedings of the International Microelectronics And Packaging Society Conference
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• 2004.11a
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• pp.14-14
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• 2004

• Journal of The Korean Dental Society of Anesthesiology
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• v.3 no.2 s.5
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• pp.84-86
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• 2003

• Proceedings of the Korea Water Resources Association Conference
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• 1996.05a
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• pp.399-405
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• 1996

• Journal of the Korean earth science society
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• v.18 no.6
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• pp.565-578
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• 1997

Clouds are usually formed by adiabatic cooling through ascending currents, radiation cooling or a mixture of warm air and cold one. Ascending currents are caused by covection currents, or they are accompanied with fronts. Thus clouds are formed through various kinds of causes and procedures. So they are various in height and shape. Form of clouds was classified on the basis of the thecriteria that L. Howard proposed in 1803. He distinguished three simple, fundamental classes-Cirrus, Cumulus, Stratus-from which the others were derived by trasition or association. And they are subdivided into 10 genera according to their height and shape. Most of the clouds are subdivided into the detailed kinds to the characteristics such as appearance or intensity of convection current. Sometimes completly different shape of cloud can be developed out of the 'mother-cloud'. In korea, the stratocumulus, altostratus and cirrus clouds frequently appear. Generally we are likely to have rain or snow from the stratus cloud forms(As, St, Sc) and rain shower or hail from the cumulus forms(Ac, Cu, Cb).

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.04a
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• pp.303-304
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• 2008

• KCID journal
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• v.2 no.2
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• pp.27-36
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• 1995

Changes of meteorology, hydrological mechanism and discharge phenomena by the regional development have caused many technical, social and economical problems. Therefore, the regional development neglecting such changing parameters can provide considerable

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2008.04a
• /
• pp.350-351
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2008.04a
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• pp.100-101
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 1999.10a
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• pp.303-304
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• 1999

지구대기중에는 다량의 에어로졸이 존재하고 있으며, 각각의 영역에서 구름을 형성하거나, 가시광을 흡수ㆍ산란, 물질의 수송, 산성우 등과 관련을 가진다. 또한 겨울철에는 극지방의 성층권 오존이 파괴되면서 오존농도가 현저하게 감소하면서 오존홀이 출현하고, 이때에 극성층권운이라고 하는 에어로졸이 중요한 역할을 하고 있는 것으로 보고되고 있다. 이와같이 에어로졸은 여러 가지 대기현상과 밀접한 관계 가진다.(중략)

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2003.10a
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• pp.278-280
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• 2003

We manufactured neon liquefaction system for cooling system of HTS motor. The neon liquefaction system consists of a GM refrigerator, a liquefaction vessel and a vacuum chamber. It is found that the neon starts to be liquefied in the liquefaction vessel after 35 minutes of cool-down from gas state of 294k. Capacity of neon liquefaction system and the liquefaction rate were about 36W, 0.1g/s.