• Journal of Welding and Joining
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• v.30 no.1
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• pp.8-18
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• 2012

• Journal of Welding and Joining
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• v.29 no.3
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• pp.4-13
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• 2011

• The Korean Journal of Pesticide Science
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• v.18 no.3
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• pp.210-219
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• 2014

• Journal of Korea Foundry Society
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• v.31 no.4
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• pp.165-171
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• 2011

• Journal of Energy Engineering
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• v.25 no.4
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• pp.245-250
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• 2016

Manganese dioxide is the material which has a good characteristic property for a secondary cell. We have surveyed on rechargeable battery of zink-manganese dioxide using aqueous solution and we also surveyed on redox reversibility of zink-manganese dioxide for checking up possibility for a secondary cell. We have found out to be active for charging and discharging of those.

• Journal of the Korea Safety Management & Science
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• v.15 no.3
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• pp.163-170
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• 2013

There are many pros and cons for whether smart glasses and watch would be further going technology or not beyond smart phone. What have to do domestically is to find acting ways to catch up with technological gap in short term basis through analyses and investigations in technological issues, patents profile, market forecast. In this paper, firstly we investigate and review technological issues and form factors of smart glasses and HMD, and secondly analyze technological tendency and identify their core technology and intension from global key player's patents analyses connected with smart glasses, and conclusively suggest technological prospects and it's countermeasures.

• Journal of the Korean Professional Engineers Association
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• v.45 no.1
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• pp.61-62
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• 2012

Realizing that retired scientists and engineers are one of the most important human resources in contributing scientific competitiveness of the country, several policies for supporting utilizing retired scientists and engineers have been developed and performed in support of government for years. Those policies in proper priority will bring the efficient utilization mechanism of retired scientists and engineers to the society with the value and the respect of scientists and engineers at all. So, Utilization of retired scientists and engineers for advancement of Technology(Reseat programme) were summarized.

• Plant Journal
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• v.8 no.3
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• pp.17-25
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• 2012

• Journal of Energy Engineering
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• v.23 no.1
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• pp.1-6
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• 2014

We have surveyed on microcalorimetry which we can treat with energy dispersive spectrometer(EDS) as wavelength dispersive spectrometer(WDS), to be developed in order to make higher energy resolution as to detect X-ray peak as high as wavelength dispersive spectrometer(WDS). When we take into consideration about energy resolution, Wavelength dispersive spectrometer is 2~20eV and energy dispersive spectrometer is 140~180eV.

• Journal of Energy Engineering
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• v.23 no.3
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• pp.17-20
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• 2014

A magnetic fluid separation technology was confirmed to be very effective to remove the suspended solids from contaminated water. We have surveyed on the effects of operating variables on the characteristics of suspended solids(SS) removal investigated through the test runs using magnetic powder. Magnetic flocculation here formed by adsorbing fine magnetites on the surface of suspended solid was observed. The strength of magnet was of significance in determining the SS removal efficiency.