• Journal of the Korean Wood Science and Technology
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• 제21권4호
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• pp.45-54
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• 1993

This study examines the differences in structures, physical and mechanical properties between domestic(Quercus variabilis Blume) and foreign(Quercus suber L.) corks. The results obtained are as follows: 1. The cork tissue consists of cork cells, lenticels, sclereids and dark-brown zone. There was a significant difference in ratio of cork cells between foreign cork(93 %) and domestic cork(87 %). The ring width and width of late cork of the foreign cork were wider than those of domestic cork. But the percentage of late cork of domestic cork was richer than that of foreign cork. The size of cork cell of foreign cork was larger by about two times than that of domestic cork. 2. The density was slightly higher in domestic cork(0.22 g/$cm^3$) than in foreign cork(0.19 g/$cm^3$). During first 24 hours, the amount of water absorption of the foreign cork was greater than that of domestic cork. However, after 24 hours, the tendency was reversed. The level of EMC was higher in domestic cork than in foreign cork. Total shrinkage in the radial and tangential directions was larger in domestic cork than tn foreign cork. In the longitudinal direction, the tendency was reversed. There was no difference in total swelling in three woody directions between the two corks. 3. The modulus of elasticity in compression in the logitudinal and tangential direction was higher in domestic cork than in foreign cork, but the tendency was reversed in the radial direction. Both corks showed 95% of recovery rate after 24 hours when they were compressed by 0.5. There were no differences in tension strength and Brinell,s hardness bet ween domestic and foreign corks.

• 대한안전경영과학회지
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• 제15권4호
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• pp.295-309
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• 2013

In order to investigate of technology competitiveness for domestic engineering enterprise, using the quantitative and objective patent. In these result, the technology competitiveness(Patent Activity Index, Patent Family Size Index, Patent Impact Index, Technology strength) of our enterprise is far inferior to another country. So we should try to achieve our superiority in competitive power, we devote ourself to put through technical improvements of our domestic engineering enterprise in many ways.

• 한국신뢰성학회지:신뢰성응용연구
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• 제8권2호
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• pp.75-85
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• 2008

In this paper, we compared domestic with foreign pilot lamps installed on the instrument board or electronic modules (car audio, air-conditional system, etc.) of an automotive vehicle by an accelerated life test in order to estimate the life of domestic pilot lamps. An accelerated life test method was developed and the relation of the life and voltage stress was analyzed. The main results are as follows; i) $B_{10}$ life of pilot lamp is above 5,000 hours, vehicle travel time for 10 years. ii) the life of domestic pilot lamp is longer than that of foreign thing. iii) the life distribution of domestic pilot lamp is wider than that of foreign thing. iv) it is possible to promote import replacement of automobile pilot lamp.

• 반도체디스플레이기술학회지
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• 제21권3호
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• pp.69-73
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• 2022

The application of cloud computing to many industrial domains is rapidly increasing, and domestic and foreign cloud service providers are actively conducting business. In the domestic cloud market, it is necessary to establish an ecosystem with partner operators that work closely with private cloud service providers. In this paper, to create such an environment, we propose a framework that can evaluate the capabilities of partners required for cloud service providers to establish specific business strategies. The framework proposed in this study establishes criteria for evaluating partners' competencies and applies a decision-making model such as fuzzy AHP for evaluation. Eventually this will help not only to expand the domestic cloud market but also to strengthen the competitiveness of domestic cloud partners through the growth of the domestic cloud market.

• 기술혁신학회지
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• 제20권3호
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• pp.781-804
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• 2017

영상 보안 분야는 하이테크 산업이면서 원천기술의 발전 속도는 느리고 응용 기술 분야의 발전 속도는 빠른 특징을 지니고 있는 것으로 알려져 있으며, 영상 보안 하드웨어 관련 분야에서의 국내 기업들의 기술 수준은 높으나 이를 이용한 응용 시스템 분야의 기술 수준은 그렇지 못한 실정이다. 국내 영상산업 분야 기업들의 기술 선택은 시장 경쟁력 강화라는 측면에서 해당 기업의 생존 가능성을 결정한다. 본 논문에서는 지능형 영상 보안 산업 분야의 국내 기업들을 위하여 장기적인 기술경쟁에서 원천 기술을 획득하기 위한 기술의 선택 방법을 제안한다. 이를 위하여 글로벌 선도기업의 특허 현황 분석을 통하여 그들이 집중하는 기술 분야를 확인하고, 국내 기술의 현황을 파악하여 선도기업과의 차이를 분석하였다. 또한, 국내 중소기업의 CTO와 CEO등 전문가들과의 패널토론을 통하여 조사한 기술과 제품의 미래시장 규모를 추정하였으며, 요소기술-응용제품 매트릭스 기법을 이용하여 기술의 중요성을 평가하여 R&D 기회 기술선택방법을 제안하였다. 본 연구의 성과를 통하여 영상 보안 산업분야의 중소기업이 선택과 집중이 가능한 기술 획득을 추진함으로서 기술사업화 성과를 제고 할 수 있을 것으로 기대한다.

• Journal of the Korean Wood Science and Technology
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• 제31권6호
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• pp.40-44
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• 2003

This study was carried out to investigate the antioxidant activities of domestic trees grown in Korea. Based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity method, the methanolic extracts of 23 species were screened in order to search for natural antioxidants. Among these species, Acer ginnala, Cotinus coggygria, Acanthopanax koreanum, Thea sinensis and Pinus densiflora showed stronger antioxidative activity comparing with reference compound, ascorbic acid.

• 아동간호학회:학술대회논문집
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• 아동간호학회 2005년도 동계학술대회 및 정기총회
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• pp.84-90
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• 2005

KISTI(Korea Institute of Science and Technology) has developed ${\ulcorner}KISTI-ACOMS (KIST-Article Contribution Management System){\lrcorner}$ as a part of the national project for the informatization of academic societies, and distributed the system to academic societies for free since 2001. KISTI-ACOMS is a web-based system that automates the full process of academic paper review and journal publication and circulation for academic societies. KISTI have analyzed academic societies' demands for a paper review system for last three years and, after a thorough redesign and implementation, released KISTI-ACOMS 2.0 in september 2005. recently, there are many societies requesting the online paper review system for the informatization of their societies. korean academy of child health Nursing has decided to introduce KISTI-ACOMS 2.0 to meet current trends and KISTI customized KISTI-ACOMS 2.0 to reflect configuration and paper review process of Korean Academy of Child Health Nursing. This Paper investigates the functions of KISTI-ACOMS customized for the korea academy of child health nursing and describes necessary features for the future online paper review system.

• Nuclear Engineering and Technology
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• 제47권6호
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• pp.729-737
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• 2015

Wireless communication technologies, especially smartphones, have become increasingly common. Wireless technology is widely used in general industry and this trend is also expected to grow with the development of wireless technology. However, wireless technology is not currently applied in any domestic operating nuclear power plants (NPPs) because of the highest priority of the safety policy. Wireless technology is required in operating NPPs, however, in order to improve the emergency responses and work efficiency of the operators and maintenance personnel during its operation. The wired telephone network in domestic NPPs can be simply connected to a wireless local area network to use wireless devices. This design change can improve the ability of the operators and personnel to respond to an emergency situation by using important equipment for a safe shutdown. IEEE 802.11 smartphones (Wi-Fi standard), Internet Protocol (IP) phones, personal digital assistant (PDA) for field work, notebooks used with web cameras, and remote site monitoring tablet PCs for on-site testing may be considered as wireless devices that can be used in domestic operating NPPs. Despite its advantages, wireless technology has only been used during the overhaul period in Korean NPPs due to the electromagnetic influence of sensitive equipment and cyber security problems. This paper presents the electromagnetic verification results from major sensitive equipment after using wireless devices in domestic operating NPPs. It also provides a solution for electromagnetic interference/radio frequency interference (EMI/RFI) from portable and fixed wireless devices with a Wi-Fi communication environment within domestic NPPs.

• 패션정보와 기술
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• 제5권
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• pp.2-9
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• 2008

• 한국수소및신에너지학회논문집
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• 제34권2호
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• pp.122-131
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• 2023

Currently, major foreign countries such as Europe, the United States, Japan, and China have established policy and technology goals by 2050 to achieve the hydrogen economy. In line with this, Korea is also preparing to leap forward as a leading country in the world's best hydrogen economy by establishing a technology development target by 2050. In this paper, by examining and analyzing domestic and foreign policy and technology trends to date, implications for domestic hydrogen policy and technology trends are discussed, and major issues and future contents are summarized.