• Journal of Sensor Science and Technology
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• v.6 no.3
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• pp.228-236
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• 1997

Radioactive materials need to control, measure and protect precisely the overflow because they are dangerous. In this paper, GM-counter type radiation detector system, that can precisely measure the quantity of radioactivity using improved counting program is designed and program that can store and transfer the counted data is studied. The manufactured system, counting system of GM-counter type radiation detector, and counter program can be utilized to measure them at various methods in an atomic power plant and research centers.

• Journal of Electrical Engineering and Technology
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• v.6 no.4
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• pp.539-542
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• 2011

Thin-film transistors (TFTs) are fabricated using an amorphous indium gallium zinc oxide (a-IGZO) channel layer by rf-magnetron sputtering. Oxygen partial pressure significantly changed the transfer characteristics of a-IGZO TFTs. Measurements performed on a-IGZO TFT show the change of threshold voltage in the transistor channel layer and electrical properties with varying $O_2$ ratios. The device performance is significantly affected by adjusting the $O_2$ ratio. This ratio is closely related with the modulation generation by reducing the localized trapping carriers and defect centers at the interface or in the channel layer.

• Journal of Korean Library and Information Science Society
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• v.27
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• pp.271.2-336
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• 1997

The present study is a review to determine by what bodies and through what mechanisms the national industrial information policy is implemented and administered, that is what is its content and how it is linked to industrial and technological needs in the field of industrial firms. There are lacking essential capabilities required to transfer industrial information and to channel it to ultimate users. It is not possible to identify users' information needs adequately, to acquire pertinent information, to adapt it to prevailing conditions, to disseminate it to those who need it. Various organizations work to meet the specific information requirements of industry. These organizations include governmental agencies, industrial associations, research institutes and information centers. They have, however, developed independently without liaison among them. They may be some unnecessary duplication in some spheres and inadequate facilities in others. A n.0, ppropriate institutions which provide industrial information would be industrial associations, industrial research and development institutes. They serve as a coupling mechanism between industry and the existing information facilities.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2003.05a
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• pp.313-335
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• 2003

It has been thirty years since Daedeuk Science Park was established in Daejeon, Korea. The Park has grown to be a national center for scientific activities, hosting more thirty research institutes at major scale with 12,000 scientists. As a main purpose of establishing the science park was to promote sciences as basic research, there have not been much economic impacts created from the science park. There have also been very little networks established among research and educational institutes within the science park and the city of Daejeon in general. After the economic crisis in 1997, however, there have been increasing changes around the Park. Since then more than 400 technology-intensive firms were newly created, mainly from the research institutes, or introduced to the Park area. This paper analyzes R&D networks of these small firms, especially with research institutes and universities, based on a questionnaire survey. The paper has argued: 1) to establish technology transfer centers, 2) to emphasize research related to commercialization, 3) to intensify advertizement of research outputs to the potential entrepreneurs, 4) to assist entrepreneural associations of concerned companies.

• Journal of the Korean Magnetic Resonance Society
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• v.20 no.4
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• pp.114-120
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• 2016

Nitrogen vacancy-centered diamond has recently emerged as a promising material for various applications due to its special optical and magnetic properties. In particular, its applications as a fluorescent biomarker with small toxicity, magnetic field and electric field sensors have been a topic of great interest. Recent review (R. Schirhagl et al 2014) introduced those applications using single NV-center in nanodiamond. In this minireview, I introduce the rapidly emerging DNP (Dynamic Nuclear Polarization) field using optically-pumped NV center in diamonds. Additionally, the possibility of exploiting the optically-pumped NV center for polarization transfer source, which will produce a profound impact on room temperature DNP, will be discussed.

• KIEAE Journal
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• v.16 no.1
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• pp.95-101
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• 2016

This study aims to analyze the satisfaction targeted community space for public rental housing tenants a real community space. and community space is analyzed only through the factor analysis of the effects of satisfaction, multiple regression analysis etc. As a result, the space community and public rental housing will only affect the satisfaction, factors affecting such analysis was 'common space', 'exercise place', 'resting place'. Thus, a variety of political and institutional efforts and practical research for interactive spatial planning public rental housing estates satisfaction for the improvement and community activation moving away from passive concept of the one-way ever to supply that community space in the past, provider centers and considering the tenant characteristics is required.

• Proceedings of the KIEE Conference
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• 2001.05a
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• pp.245-247
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• 2001

This paper presents a series of simulation results of transient stability on SCOPF operated power system whose transmission capabilities are limited by voltage stability. Three steps of voltage security guidelines, 5[%], 7[%], 10[%] are introduced to increase power transfer from generation centers to load center and observed the effects of voltage guidelines to transient stability for three kinds of load level(peak, medium, off-peak). As a result, dynamic characteristics weren't affected by the voltage security limits in model system, but became worse for the off-peak level than peak case, and sustain oscillations are observed for the all load level. This gives us some intitutions for the development and applications of security limits to use SCOPF program in open electric market.

• Journal of the Korean Ceramic Society
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• v.49 no.1
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• pp.124-129
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• 2012

An M-shaped SiC gas igniter was fabricated by a reaction sintering followed by nitrogen doping. The igniter showed both resistivity at room temperature and NTC to PTC transition temperature values that were lower than those of commercial igniters. It was deduced that the doped nitrogen reduces the electrical resistivity at room temperature, while, at high temperature, the doped nitrogen and a trace of $Si_3N_4$ phase work as scattering centers against electron transfer, resulting in a lowered NTC-to-PTC transition point (below $650^{\circ}C$). Such characteristics were correlated to the fast heating speed (as compared to the commercial models) and to the prevention of the high temperature overshooting of the nitrogen-doped SiC igniter.

• 제어로봇시스템학회:학술대회논문집
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• 1990.10a
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• pp.514-518
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• 1990

This paper describes an experimental Knowledge-Based Control System, named KBCS, for manufacturing and assembly. The KBCS of five parts and function : data-base, knowledge acquisition, optimization, and graphic monitoring. The KBCS is utilized for a FMS which is of five machine centers and automatic assembly lines. Each machine can perform almost all manufacturing functions which some difference in efficiency. Buffers store temporarily the incoming components and the outing components. Parts arrive at assembly lines after many steps of manufacturing, and the transfer path and time are determined by procedural knowledge of control systems. Nine different incoming components are set up. The total control system is expected to perform four algorithms, timing algorithm ,sequencing algorithm, penalty algorithm, and cart algorithm. The construction of controller require basic components of manufacturing systems in which knowledges are formulated on the base of the results and the repeated simulation of KBCS with graphic monitoring system. Simulation results by KBCS are compared with those by the other rules of manufacturing.

• 한국디지털정책학회:학술대회논문집
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• 2003.12a
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• pp.219-227
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• 2003

E-business including e-commerce boosts the competitiveness of corporations remarkably through the creation of new value added, positioning itself as the key to national competitive edge. Thus, advanced nations and international organizations such as WTO and OECD are structuring a positive support system for e-transformation. Korea also has been pushing for activating e-business at the government level since 2000. ECRC(Electronic Commerce Resource Centers) project is an efficient government initiative and inter-agency coordination in implementing e-Business policy for industry. This project has been sponsored by the MOCIE and operated through prime contracts with KIEC. ECRCs provide such services as educational training, technology transfer, consulting and information service related to e-Business for industry. They had given the digital opportunity demanded by industry from 1997 but in these days there are many other new e-business activating projects in Korea. This paper sought to study a strategic reform plan of ECRC.