• 한국염색가공학회지
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• 제16권6호
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• pp.23-29
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• 2004

The purpose of this study is to improve the dyeability and the color fastness to light of cotton fabric dyed with extraction of cinnamon cassia. Cotton fabric was pretreated with chito-colla to enhance the dyeability, and K/S values were compared chito-colla pretreated fabric and untreated fabric. In addition, to improve of color fastness to light of dyed fabric, it was used FFC compound as mordant. Also, it was measured SOD-liked activity of FFC compound and lifht fastness of dyed fabrics. The results are as follow; K/S value of cotton fabric pretreated with chito-colla(5%) was much more increased than untreated fabric. SOD-liked activity of FFC compound was observed over 70%. Light fastness of cotton fabric treated with FFC compound was 3～4 grades.

• 한국동물번식학회:학술대회논문집
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• 한국동물번식학회 2002년도 춘계학술발표대회 발표논문초록집
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• pp.95-95
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• 2002

Transgenic rabbits were produced by micoinjection of DNA containing metallothionein promoter ligated to growth hormone receptor (GHR) and IGF-l receptor (IGF-lR) genes. Founder transgenic rabbits transmitted transgenes into pups with Medelian ratio. The mRNA expression of transgenes using Northern blotting with probes of IGF-IR and GHR genes was checked in liver of transgenic rabbits. Transgenic rabbits with IGF-IR and GHR genes more expressed mRNA than control non-transgneic rabbits. (omitted)

• 공업화학
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• 제16권3호
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• pp.305-311
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• 2005

열플라즈마 공정은 고온, 고활성, 초급냉 등의 탁월한 특징을 갖고 있으며, 다양한 분야에 적용되고 있다. 본 총설에서는 열플라즈마 공정의 특징과 초미립 분말의 제조를 위한 시스템의 구성을 기술한다. 여기에는 금속, 세라믹, 복합 초미립 분말이 포함되며, 공정의 개발을 위하여 요구되는 핵심기술에 대하여 논의한다. 저자 등은 열플라즈마를 이용하여 다양한 형태의 고품질 초미립 분말을 제조하는 공정의 가능성을 제시하고자 하였다.

• 대한방사선기술학회지:방사선기술과학
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• 제10권1호
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• pp.37-41
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• 1987

Authors could recognize surrounding areas induding target area by the observable film density with spot radiography using Cu mask and also, radiographic images maintained high quality. Spot radiography has been utilized for a long time for the purpose of observing detail image by the control of scattered radiation. But it has been difficult to know body part in general spot radiography. Therefore it is thought that attempt to use Cu mask in spot radiography is very advantageous in a clinical examinations.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2002년도 Proceedings of the International Welding/Joining Conference-Korea
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• pp.113-120
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• 2002

The effect of out-of-plane loads on the fatigue strength of welded steel structures is examined through fatigue tests with weldment of two fillet weld joint types. The results of the fatigue tests are compared with those under axial loads, on the basis of the hot spot stress range at the weld toe. From the result of the comparison, a method on how to incorporate the effect of the out-of-plane bending stress is proposed using design S-N curves derived from fatigue tests under the axial load. The proposed method is useful for rational assessment of the fatigue strength of fillet-welded structures, where combined stresses of the in-plane axial stress and the out-of-plane bending stress are induced simultaneously due to the complexity of applied loads and structural geometry.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 춘계 학술발표회 논문집(II)
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• pp.153-156
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• 2006

This study investigated influence of kind of fine aggregate on fundamental properties of concrete. For the properties of fluidity with various type of fine aggregate, lime stone crushed fine aggregate(Ls) exhibited favorable result, due to grain shape and particle distribution, and next was granite crushed fine aggregate(Gs), natural fine aggregate(Ns). Ns had the highest value of air content while Ls had the lowest, due to the effective filling performance by continuos particle distribution. Ls, Ns, Gs in an order had higher bleeding capacity and faster setting time. However, compressive and tensile strength value exhibited similar tendency, regardless of aggregate type.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2009년도 춘계 학술대회 제21권1호
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• pp.241-242
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• 2009

본 연구에서 초고강도 콘크리트에 높은 연성을 얻기 위하여 Steel Fiber을 혼입하여 초고성능 콘크리트를 연구하였다. 기존의 Steel Fiber 와 Liquid Metal Fiber를 혼합한 초고강도 모르타르 시험체를 휨강도실험을 통하여 결과를 비교 검토 하였다. ASTM C 1018 방법, JSCE- SF4방법으로 인성지수 평가를 통해 Liquid Metal Fiber은 기존의 Bundrex Steel Fiber 보다 우수한 결과를 얻었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 추계 학술논문 발표대회
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• pp.93-96
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• 2008

This research performed strength improvement analysis after evaluating strength characteristics by estimated temperatures to evaluate the real time strength performance of 50 to 80 MPa high performance concrete equipped with heat resistance, and the results are as follows. The lesser W/B and the lesser target slump flow value difference, compression strength was shown to increase, and the more curing temperature becomes, the strength increased accordingly. According to the correlation review result of strength improvement analysis by estimated temperature change performed using logistic analysis model, the compression strength value predicted with logistic curve expression and the compression strength value measured in experiment were shown to have similar correlation, and the strength improvement analysis value by logistic model was shown to be estimated good when W/B is high.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.1143-1144
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• 2008

본 논문에서는 motion-blur를 감소시키는 overdriving 기술의 오류를 감소시키기 위해 hybrid image coding 방법을 제안한다. hybrid image coding방법은 luminance data Y을 압축하기 위한 새로운 Adaptive Quantization Coding (AQC)을 제안하고 chrominance data CbCr을 Block Truncation Coding (BTC)방법으로 압축하는 것이다. 시뮬레이션 결과는 기존의 PSNR과 SD의 비교를 통하여 HIC의 우수함을 확인하여 알고리즘의 효율성을 검증하였다. 제안된 알고리즘은 verilog HDL를 통해 구조를 구현하고 synopsys design compiler를 통하여 합성 $0.13{\mu}m$ Samsung Library구조의 효율성을 확인하였다.

• 신재생에너지
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• 제6권3호
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• pp.39-46
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• 2010

With growing of wind turbine industry, offshore wind energy is getting more attention in recent years. Among all the components of offshore wind turbines, the foundation of the offshore wind turbine plays a key role in stability of whole system. In this work, the 5 MW NREL reference wind turbine with rated speed of 11.4 m/s is used for load calculation. Wind and wave loads are calculated using GH-Bladed (Garard Hassan) and FAST (NREL). Additionally, FE simulation is carried out to investigate the wave effect on the support structure. Meanwhile, this work is to simulate systemic and optimized load cases for the foundation analysis of wind turbine system.