• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.06a
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• pp.121-122
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• 2007

• The Science & Technology
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• v.34 no.4 s.383
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• pp.22-23
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• 2001

성균관대학교 약학부 이강춘 교수는 생물접합기술분야의 연구로 국내외에서 인정받고 있는 과학자이다. 이 교수가 연구하고 있는 생물접합기술은 기존의 단백질 의약품에 또 하나의 생리활성 변형물질을 결합시키는 분자구조변형을 통해 원하는 치료특성을 체내 내에서 발현토록 하는 단백질 의약품의 차세대 치료제의 개발이다.

• Journal of Korean Society of Steel Construction
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• v.20 no.5
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• pp.617-624
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• 2008

Well-designed steel moment connections will undergo local buckling before they exhaust their available rotation capacity, and inelastic post-buckling deformation plays a major role in defining the connection rotation capacity. An approximate analytical method to model strength degradation and failure of beam plastic hinges due to local buckling and estimation of the seismic rotation capacity of fully restrained beam-column connections in special steel moment-resisting frames under both monotonic and cyclic loading conditions is proposed in this study. This method is based on the plastic mechanism and a yield line plastic hinge (YLPH) model whose geometry is determined using the shapes of the buckled plastic hinges observed in experiments. The proposed YLPH model was developed for the improved WUF-W and RBS connections and validated in comparison with experimental data. The effects of the beam section geometric parameters on the rotation capacity were discussed in the companion paper (parametric studies).

• Journal of the Microelectronics and Packaging Society
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• v.18 no.3
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• pp.33-37
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• 2011

In this study, the degradation mechanism of mounted chip resistors with Ag-epoxy isotropic conductive adhesives (ICAs) under the humidity exposure ($85^{\circ}C$/85%RH) was examined by electrical resistance change and microstructural study. The effect of the chloride content in Ag-epoxy ICA on joint stability was also examined. The increasing range of the electrical resistance in the typical ICA joint was greater than that in the low Cl content ICA joint. In the case of the typical ICA joint, Sn oxides such as SnO, $SnO_2$, and Sn-Cl-O were formed inhomogeneously on the surface of the Sn plating during the $85^{\circ}C$/85%RH test. In contrast, no Sn-Cl-O was found in the low Cl content ICA joint during the $85^{\circ}C$/85%RH. It is suggested that Cl in Ag-epoxy ICA accelerate the electrical degradation of Sn plated chip components joined with Ag-epoxy ICA.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.2 no.3
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• pp.84-89
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• 2003

The joint method and characteristics of lubricant Impregnated MC nylon and metal are analyzed. Considering the productivity and economics, two materials are Joined with the process of turning, knurling, and induction heating. The Joint strength is determined by adhesion of the melted nylon, the size of knurl, and the interference from the difference of the diameters. The parameters affecting induction heating process are analyzed. The adhesion strength of the melted nylon is measured. Finally the joint strength is analyzed in the environments of low, room, and high temperature. The nylon/metal Joined material is expected to be widely used as the sliding machine elements with good friction and shear strength.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1995.04a
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• pp.13-17
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• 1995

본 연구는 국내에서 생산되는 조립식 벽체 중 건축용벽판(철강제)의 재료구성, 부재간의 접합방식, 두께에 따른 투과손실의 특성을 실험실 실험을 통하여 비교, 분석함으로서, 건축용 벽판(철강제)의 차음성능개선을 위한 기초자료로 제시하고, KS F 4724로 규정된 차음기준에 대한 개선의 필요성을 언급하고자 한다.

• Proceedings of the Materials Research Society of Korea Conference
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• 2007.11a
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• pp.121.2-121.2
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• 2007

• Journal of Welding and Joining
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• v.20 no.2
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• pp.32-41
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• 2002

• 지반과기술
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• v.6 no.3
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• pp.54-54
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• 2009

• Journal of Welding and Joining
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• v.26 no.2
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• pp.16-19
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• 2008