• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.1559-1559
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• 2005

• 산림경영
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• s.193
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• pp.12-13
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• 2009

산림청 국립수목원(원장 김용하)은 9월의 나무로 "붓순나무"를 선정하였다고 밝혔다. 붓순나무는 중국의 자생식물로 신종인플루엔자의 치료제인 타미플루의 원료인 팔각(八角, 영명 Star anice)과 분류학적으로 사촌지간이다. 중국의 팔각은 중국의 대표적인 향신료로 사용하고 있으나, 붓순나무는 종자에 독성이 있어 향신료로 사용할 수 없다. 대신 향기가 좋아 관상용이나 절화용으로 활용가치가 높은 식물이다.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2002.10a
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• pp.656-673
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• 2002

I. EXTRADOSED PSC교의 정의 -“∼을 개선하기 위해 요소를 첨가한 교량” 이라는 dmlalh 1988년 프랑스의 Jacques Mathivat가 소개 - 스위스의 Ganter교에 처음 적용, 1994년 일본 소전원향교(Odawara Blueway) 완공을 계기로 지간 100∼200m에 적용할 수 있는 새로운 교량형식 (중략)

• KSCE Journal of Civil and Environmental Engineering Research
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• v.13 no.1
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• pp.75-87
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• 1993

Four series of fiber reinforced concrete deep beams without shear reinforcement were tested to determine their cracking shear strengths and ultimate shear capacities. Results of tests on 20 reinforced concrete deep beams (including 16 containing steel fibers) are reported. Three parameters were varied in the study, namely, the concrete compressive strength, volume fraction of fibers, and the shear span to depth ratio. The effects of fiber incorporation on failure modes, deflections. strains, cracking shear strength, and ultimate shear strength have been examined. Resistance to shear stresses have been found to be improved by the inclusion of fibers. Based on these investigations, a method of computing the shear stress of steel fiber reinforced concrete deep beam is suggested. The comparisons between computed values and experimentally observed values are shown to validate the proposed theoretical treatment.

• Proceedings of the Korean Society for Information Management Conference
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• 2010.08a
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• pp.29-32
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• 2010

As a Korean national institute, KISTI has assigned and deposited DOIs to use Korean journals internationally as well as to enlarge the citation all over the world. In addition, KISTI has provided the service, Cited-by linking, which is to identify the citation among journals. In the paper, we would like to propose the way to expand the citation, finding the result of citation by using Cited-by linking based on DOIs in CrossRef for Scientific and technical journals deposited by KISTI.

• Korean journal of applied entomology
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• v.10 no.1
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• pp.39-41
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• 1971

Apple bitter rot caused by Glomerella cingulata has been known to occur annually on the fruits of previously infected twigs and the trunks. This study was carried out to ensure whether the pathogen overwinters in the form of perithecium or not. Since the acervuli of the pathogen were formed in inoculated apple trees, it would be possible that the pathogen could overwinter on the twigs, Ascigerous stage was found both under the cuticle of the infected trunk and in outer layers of rotted fruits. Therefore, it could be concluded that the pathogen overwintered in the form of perithecium is a primary inoculum in next year. Ascigerous stage of the appfe bitter rot organism was observed for the first time in Korea.

• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.278-280
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• 2007

a-Si:H/${\mu}$c-Si:H 적층형 태양전지의 효율향상을 위해 상부전지와 하부전지간의 접합특성은 매우 중요하다. 본 연구에서는, 접합특성을 향상하기 위하여 아몰퍼스 보다 전도도가 높은 마이크로화된 n층 또는 ZnO:Al을 중간층으로 삽입한 태양전지를 제조하였으며, 그 특성을 전기적, 광학적 방법으로 분석하였다. 전기적 특성에서, 상부전지 n층에 아몰퍼스를 적용한 태양전지의 경우, 상부전지와 하부전지 간의 직렬저항이 $500{\Omega}-cm^2$ 이상으로 높게 측정되었고, 이에 따라 AM 1.5 상태의 I-V 특성에서 비틀림 현상이 발생하여 곡선인자(Fill Factor : FF)가 낮게 측정되었다. 이에 반하여, 상부전지 n층에 마이크로층을 적용하거나, ZnO:Al 중간층을 삽입한 시편의 경우, 상부전지와 하부전지간의 직렬저항이 $1{\Omega}-cm^2$ 이하로 감소하였으며, 이와 같은 계면간의 접합특성 향상으로 I-V특성에서 비틀림 현상이 사라지고, FF가 70% 까지 증가하였다. 또한, 마이크로층과 ZnO:Al 중간층을 동시에 적용한 태양전지의 경우, FF가 75%까지 가장 높게 증가하였다. 광학적 특성의 경우, 같은 두께의 아몰퍼스 n층에 비하여 마이크로 n층이 투과도는 더 높게, 반사도는 낮게 측정되었으며, 이는 하부전지의 단락전류 (Short circuit current : Jsc)를 높여줄 것으로 판단된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.12 no.3
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• pp.17-24
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• 1992

It would be much effective that single column type pier is used in concrete slab bridges rather than ${\Pi}$ or gravity type pire is used. To determine the longitudinal benging moment in concrete slab bridges supported by single column type piers, the concept of effective width is applied. By elastic plate theory cooperated with finite element method, the distribution of the longitudinal moment of the slab supported by single column type piers is studied. The main variables are span, width. thickness of the slab, and column section size. The analytical results obtained are summarized and analysed to evaluate the maximum longitudinal negative moment, then a simplified method for calculating the longitudinal moment is proposed.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.13 no.3
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• pp.1-12
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• 1993

Four series of fiber reinforced concrete beams without shear reinforcement were tested to determine their cracking shear strengths and ultimate shear capacities. Results of tests on 36 reinforced concrete beams (including 21 containing steel fibers) are reported. Four parameters were varied in the study, namely, the concrete compressive strength, volume fraction of fibers, shear span-to-depth ratio, and the tensile steel reinforcement. The effects of fiber incorporation on failure modes, deflections, cracking shear strength, and ultimate shear strength have been examined. Resistance to shear stresses have been found to be improved by the inclusion of fibers. Based on these investigations, a method of computing the shear strength of steel fiber reinforced concrete beam is suggested. The comparisons between computed values and experimentally observed values are shown to verify the proposed theoretical treatment.

• Journal of the Korean Society for Railway
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• v.16 no.6
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• pp.503-509
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• 2013

Since the opening of KTX, the number of people coming to KTX stations to use KTX has steadily increased. Passengers have a variety of access modes between a KTX station and their origin/destination. But there is no way to confirm the level of connection strength. So this study examines various connection characteristic variables that can show the connectivity, and examines influencing relationships, and chooses variables that affect connectivity by using a KTX modal split. We will suggest connectivity estimation models between a KTX station and origin/destination based on the selected connected variables.