• 천문학회지
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• 제36권spc1호
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• pp.135-143
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• 2003

Solar radio astronomy is about to undergo a revolution with the advent of a new radio synthesis array, the Frequency Agile Solar Radiotelescope (FASR). The array will consist of more than 100 antennas (5000 baselines), and will be designed to meet the special challenges of solar imaging. It will produce high-quality images at hundreds of frequencies in the range 20 MHz-24 GHz. We briefly describe the plans for the instrument, and then concentrate on the range of science that is expected to be addressed, using current state-of-the-art solar radio observations and modeling to illustrate FASR performance. We end with an assessment of the current status of the instrument, and plans for future.

• 디지털융복합연구
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• 제7권2호
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• pp.1-12
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• 2009

This study explored which the component factors on innovation brand to building an organizational culture of government. The innovation brand perception of organizational officers are in order brand awareness(recognition, discrimination) and brand loyalty(identification, ease of memory, meaning diffusion, the reaction of customer needs), brand salience, brand knowledge and brand innovation. The result of Importance-Performance analysis are as follows. We can see that Brand loyalty have Quadrant I meaning good management implementation. Brand Knowledge have Quadrant II meaning concentrate improving. Brand Uniqueness have Quadrant III meaning improving. And Recognition, familiarity and salience have Quadrant IV meaning low relative importance and high performance. The Quadrant IV consider the cost and benefit of brand management.

• 한국자동차공학회논문집
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• 제11권6호
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• pp.7-13
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• 2003

The purpose of this study is to investigate the effect of the in-cylinder flows and different injection timings on fuel behavior in the cylinder of a GDI engine. Three different flows types induced by using masked port, unmasked port, and port deactivation were tumble, swirl&tumble, and high swirl respectively. LIEF technique was applied to investigate the mixture formation and fuel distribution at ignition time in the transparent engine with optical access through the piston top and upper part of cylinder liner. Injection timings of 180,90, and 60 degrees before TDC were examined. It was found that tumble flow was more effective on the homogeneous mixture formation than other flow and swirl flow transported more fuel vapor to the exhaust side at early injection mode, and swirl and swirl & tumble flow made fuel vapor concentrate around the cylinder center at late injection mode.

• 한국식품영양학회지
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• 제14권3호
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• pp.222-227
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• 2001

The production results of the oriental functional beverage, which is aimed at reducing the alcohol concentration in blood, are as follows. Different kinds of herb medicine ingredients were combined to achieve the balance between Yin And Yang. They were grouped according to their respective characteristics and extracted by heat, Then they were combined and produced following the most effective mixture ratio. The drink produced by this way consisted mainly of water, Sugar, mineral, protein and fiber were partially contained. Among the minerals, the proportion of calcium, potassium, magnesium was high and iron was also contained. This drink turned out to be effective in reducing the alcohol concentration in blood within a very short time when it was taken once after drinking and taken aging 30 minutes later, which would double the dosage. This result shows that development of such a functional beverage using the herbal medicine, At the same time it will play an important part in reducing the alcohol concentrate in blood after drinking liquors.

• 정보학연구
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• 제4권4호
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• pp.101-112
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• 2001

본 논문의 목적은 가상 과학 박물관 구축에 있다. 소프트웨어의 신기술을 지닌 과학적이고도 기술적인 역량에 집중된 JAVA 3D 와 VR 3D, 멀티미디어와 교육적 자료의 공헌은 가상 과학 박물관을 현실화 시켰다. 즉, 이는 고수준의 정보서비스를 현실화했다. 가상공간의 3차원 서비스와 유용한 과학 정보를 가진 교육적 자료를 제공한다. 결국에는 IT산업에 공헌한다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
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• pp.67.1-67.1
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• 2011

Knowledge of the solar radiation components and classified wavelength are essential for modeling many solar energy systems. This is particularly the case for applications that concentrate the incident energy to attain high photo-dynamic efficiency achievable only at the higher intensities. In order to estimate the performance of concentrating solar systems, it is necessary to know the intensity of the beam radiation, as only this components can be concentrated, and The new solar system can generate electricity from ultraviolet and infrared light as well as visible light. The Korea Institute of Energy Research(KIER) has began collecting solar radiation components data since January, 1988, and solar radiation classified wavelength data since November, 2008. KIER's solar radiation components and classified wavelength data will be extensively used by concentrating solar system users or designers as well as by research institutes.

• 한국유기농업학회:학술대회논문집
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• 한국유기농업학회 2001년도 심포지엄
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• pp.248-265
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• 2001

Recently, agriculture in Korea is seriously depressed by economic globalization and trade liberalization because of low competitive power. Organic farming, which is favorable for small scale agriculture, is expected to be one of alternatives to boost agricultural activities in Korea. Organic agriculture requires systemic developments of new technologies considering the complex biological interaction within the system in connection with high quality and safety standard. The National Institute of Agricultural Science & Technology(NIAST) has been worked on the series of organic farming technologies, including bio-pesticides, pheromone, natural enemies as well as the testings of materials used in organic farming. NIAST will concentrate on the technological development for compromising to the conflict between commodity-oriented and ecological harmony. Research on systemic land and water use, management of plant nutrition, pest and disease control, post-harvest would also be important targets. Integrated efforts among researchers, professors, administrators, farmers, private sectors, and extension workers are substantial for fast technology development and its dissemination. Development and use of these technologies will homely enlighten the Korean organic farming although it may require quite a time and endeavor.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2000년도 추계학술대회 및 발표대회 강연 및 발표논문 초록집
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• pp.10-10
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• 2000

Mechanical alloying (MA) is a powder metallurgy processing technique involving cold welding, fracturing, and rewelding of powder particles in a high-energy ball mill. This has now become an established commercial technique in producing oxide dispersion strengthened (ODS) nickel- and iron-based materials. The technique of MA is also capable of synthesizing non-equilibrium phases such as supersaturated solid solutions, metastable crystalline and quasicrystalline intermetallic phases, nanostructures, and amorphous alloys. In this respect, the capabilities of MA are similar to those of another important non-equilibrium processing technique, viz, rapid quenching of metallic melts. however, the science of MA is being investigated only during the past ten years or so. The technique of mechanochemistry, on the other hand, has had a long history and the materials produced this way have found a number of technological applications, e.g., in areas such as hydrogen storage materials, heaters, gas absorber, fertilizers. catalysts, cosmetics, and waste management. The present talk will concentrate on the basic mechanisms of formation of non-equilibrium phases by the technique of MA and these aspects will be compared with those of rapid quenching of metallic melts. Additionally, the variety of technological applications of mechanically alloyed products will be highlighted.

• 한국도서관정보학회지
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• 제38권2호
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• pp.79-99
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• 2007

도서관의 핵심역량은 서고에 축적된 방대한 아날로그 자료와 서버에 농축되는 고품질의 디지털 컨텐츠에서 발원하며, 양자의 상호작용이 강화할 때 지식정보의 타입캡슐과 게이트웨이로서의 정체성을 확보할 수 있다. 이러한 전제 하에 본 연구는 디지털 장서개발의 대상과 방법을 논급한 다음에 전자잡지의 라이선스 확보 인터넷 정보자원의 개발, 기관 레포지터리 구축 등의 전략을 다각도로 제시하였다. 어느 도서관이든 디지털 장서개발과 아카이빙에 소홀하면 정보공유지로서의 입지를 상실할 것이다.

• 한국통신학회논문지
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• 제33권8B호
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• pp.689-698
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• 2008

The performance of a TCP protocol on MANETs has been studied in a numerous researches. One of the significant reasons of TCP performance degradation on MANETs is inability to distinguish between packet losses due to congestion from those caused by nodes mobility and as consequence broken routes. This paper presents the Cluster-Label-based Routing (CLR) protocol that is an attempt to compensate source of TCP problems on MANETs - multi-hop mobile environment. By utilizing Cluster-Label-based mechanism for Backbone, the CLR is able to concentrate on detection and compensation of movement of a destination node. The proposed protocol provides better goodput and delay performance than standardized protocols especially in cases of large network size and/or high mobility rate.