• Journal of Korea Technology Innovation Society
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• v.10 no.2
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• pp.361-382
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• 2007

As the Korea's economy grows bigger and its industrial structure advances, demands of high quality product become increasing. And the technology becomes to be more important factor than labor power and capital. And, the development of technology plays the key role in promoting the competitiveness of a nation. Measurement means 'Measuring with instrument', dissemination of measurement standards related with dissemination and distribution of measuring instrument. Measurement technology has been known to be the main factor of economic growth and technological development. National measurement standards is one of these factors of measurement technology. Therefore, in order to enhance dissemination of measurement standards to industry, we have to define its economic impact. We analysed the economic impact of measurement standards in terms of its contribution to the product induction of industry and management results using I-O Table with the quantitative data. The results from this study show that the increasement of measurement standards dissemination is in complementary relation with the productivity of various industries, assembly manufacturing, in particularly.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.683-684
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• 2008

The resistance is frequency dependent by the Seeback effect, loading effect, Eddy current loss, uniformly distributed inductance of the resistance element and uniformly distributed self-capacitance of the resistance element and capacitance between resistance element and it's box. A precise ac resistance measurement system has been developed for using as maintaining and dissemination of national ac resistance standards. The developed resistance measurement system can be used as a instrument of national ac resistance standards at frequency less than 10 kHz and it's measurement accuracy was 0.23(${\mu}{\Omega}/{\Omega}$)+4.2 ${\mu}{\Omega}$ at 1592 Hz and 20 V.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.6 no.3
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• pp.9-13
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• 2007

In this paper, we propose a system that can be used to provide the national standard time for the general public with ease by using the self-implemented independent time-code generator for transmitting standard time information through both the wired and the wireless networks. The newly proposed time code is different from conventional methods in the point that it has a structural advantage of having an ability of obtaining reliable data by repeatedly transmitting the same information. We observe that it is sufficiently possible to transmit the time information with a microsecond level because measurement result shows that the system uncertainty is about few nanosecond of time-error fluctuation through the self characteristic measurement of total system including the time-code generator and decoder system receiving time-information.

• Korean Journal of Construction Engineering and Management
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• v.17 no.1
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• pp.66-75
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• 2016

As the demands for traditional Korean housing has been increased in recent years, modernized Korean traditional housing (Hanok) was developed as a way of providing Hanok for the public. Modernized Hanok attempts to remedy the shortcomings of the traditional hanok (i.e., high unit cost of building and low energy performance). In the previous researches, standardization and productivity improvement for modernized Hanok dissemination have been intensely developed. Above all, cost estimating for modernized Hanok is also an important factor. In an effort to provide effective system for Hanok construction, this paper developed 'standard cost data' for modernized Hanok. Distinct characteristic of modernized Hanok construction were analyzed first. Then, basic structure was identified, and major items were selected for Hanok standard cost data. However, this set of cost data was developed based on two mock-up Hanok projects actually constructed. Accordingly, this standard cost data will be further updated and modified by continuously accumulating real-world Hanok projects