• Journal of the Korean Society for Nondestructive Testing
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• v.8 no.1
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• pp.44-48
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• 1988

Quality and economy in radiography can be achieved by using the right techniques and the film material available on the market. Pre-packing with or without lead, under vacuum or not, play an important role provided the right kinds of procedures are applied. The author explains some of the ways used by different N.D.T.companies to achieve the best quality in an economical way.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.999-1000
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• 2013

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.101-102
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• 2011

• 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

• Journal of the Korean Professional Engineers Association
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• v.41 no.3
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• pp.45-49
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• 2008

Considering domestic situation such as economical crisis, $CO_2$ exhaust amount limit based on the Climatic Change Convention, sky-rocketed oil prices. 97% of energy import from abroad, and import sum reaching up to 20% of entire import, we need to invest new recycle energy and future energy development at a full blast.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2003.10b
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• pp.202-207
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• 2003

This paper is focused on a compound forging technology of the blower blade and the process flow in the production of the blade. It shows this compound technology is reliable and economical for the production of big blades.

• Proceedings of the Korea Concrete Institute Conference
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• 2000.10a
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• pp.315-319
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• 2000

This study is to analyze the effect of the cross beam in bridge design. The analysis on the cross beam using FEM method is to find the best location and numbers of the cross beam in bridges. These analysis will allow economical design and construction in the field.

• Proceedings of the KSR Conference
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• 2001.10a
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• pp.48-53
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• 2001

In Korea, the modification of working conditions of the train crews, with the launch of the KTX, demands a new set of regulations. The analysis on the french case will be a first step, in spite of socio-economical differences between Korea and France, in making new rules for the train crews of the KTX.

• Proceedings of the KSR Conference
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• 2005.05a
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• pp.862-866
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• 2005

This paper presents a suggestion for improvement of droppers. To prevent circulation currents in trolly wire system, we developed a new type of elastic droppers and validated/verified its function. In this paper, therefore, we introduced a developed elastic dropper and analyzed economical efficiency of it.

• Proceedings of the Korean Nuclear Society Conference
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• 2003.05a
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• pp.56.1-56.1
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• 2003