• Environmental Engineering Research
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• v.8 no.4
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• pp.222-227
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• 2003

• Proceedings of the Optical Society of Korea Conference
• /
• 1998.08a
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• pp.176-177
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• 1998

• Proceedings of the Korean Nuclear Society Conference
• /
• 2001.10a
• /
• pp.329.1-329
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• 2001

• Journal of the Korean Society for Precision Engineering
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• v.18 no.6
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• pp.9-18
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• 2001

• 한국가스학회:학술대회논문집
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• 2001.10a
• /
• pp.23-30
• /
• 2001

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2004.05a
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• pp.181-182
• /
• 2004

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2007.11a
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• pp.93.2-93.2
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• 2007

• 한국연소학회:학술대회논문집
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• 2014.11a
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• pp.337-338
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• 2014

In this study, a method of using a capacitance sensor was investigated as a means to measure the mass fraction of a type of harmful substance. Using MEMS process, we developed a capacitance sensor and studied the real time mass fraction with harmful substance mixture liquid.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 1998.10a
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• pp.407-413
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• 1998

Considerable progress has been made in the application of time-domain reflectrometry(TDR) to measurement of soil water content. The TDR provides a means of monitoring the water content of soil over a wide range of values, in the field and in the laboratory The TDR measures the volumetric moisture content of the soil via a bureid sensor(probe). Probes can be buried and monitored remotely and an immediate result can be obtained. In addition to, the results are very reliable.

• Magazine of the Korean Society of Agricultural Engineers
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• v.21 no.1
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• pp.63-77
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• 1979

Six kinds of weathered granite soils whose degree of weathering and mineral compo- sitions are different, were tested in order to improve the soil-cement. by performing compression test, durability (freezing-thawing) test and mesurement of shrinkage are made. From result of the tests as mentioned above, the following conclusions are drawn. The unconfined compressive strength of seondary additives containing soil-cement mixtures and their resistance against freezeing-thawing are more increased and shrinkage is more decreased than soil-cement mixtures only in case opitimun quantity of additives are added to soil-cement mixtures, and according as types of soils.