• The Magazine of the IEIE
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• v.17 no.6
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• pp.53-60
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• 1990

본 글은 완성된 circuit를 thick-film hybrid IC화 하기 위하여 고려하여야 할 사항인 설계의 기본개념, 기판 재질의 소개 및 특성, 도체, 저항, 유전체 paste를 소개하고 제조 기술 분야에서는 기본공정인 인쇄, 소성, 트리밍, packaging에 대하여 기술하였다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.145-146
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• 2011

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.463-464
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• 2011

• Journal of Advanced Marine Engineering and Technology
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• v.40 no.4
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• pp.320-324
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• 2016

A new eccentric forging process for camber bolts has been suggested in this study. The camber bolt is manufactured by a two-step process: the typical forging process for normal bolts and the trimming process for the eccentric flange. The processes are performed under high forging load and generate a large amount of chip during trimming. A new forging process has been required in order to overcome these problems. The eccentric forging is the new process in which the load axis is offset from the central axis, as against central load applied in a typical forging process. The eccentric forging process could reduce forging load and save the amount of chip. In order to manufacture camber bolts by an optimum process, it is required to adjust the geometry of eccentric die and the offset from the central axis.

• Journal of Fashion Business
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• v.26 no.5
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• pp.1-21
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• 2022

Purpose of this study is to develop fashion design with greater added value and to seek the expandability of its expression domain by applying special computer code and tape embroidery machine capable of creating more special and fancier fashion to the development of fashion design by focusing on the fashion decorations that are becoming increasingly more computer systematized. For this purpose, expression techniques and effects of computer embroidery machine code and tape trimming decoration techniques, and cases of modern fashion design are examined. Major images are then deduced to designing and production of actual 6 creative pieces equipped with creativity and commercial value by applying such images deduced. As the results, it is not only possible to develop highly value added fashion design by utilizing mixed computer embroidery machine code and tape trimming decoration technique but also to produce countlessly new and unique surfaces by inducing changes in diversified pattern expressions, thickness of cord thread, and width, color and texture of material, etc. of the tape. This can maximize the expression domain of design, and fulfill the fashion desires of consumers wanting modern enhancement of quality and individualization. If multilateral attempts and studies for the aforementioned purposes can be expanded continuously, it is deemed possible to broaden the range of expression techniques in fashion design and, moreover, to make contribution towards enhancement of competitiveness of fashion industry.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.483-490
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• 2016

Automobile door latch is a fine design and assembly techniques are required in order to produce them in a small component assembly shape such as a spring, injection products, a small-sized motor. The door latch is fixed to not open the door of the car plays an important role it has a direct impact on the driver's safety. In this study, during trimming of the terminals of the connector main components of the car door latch, reduce rollover and conducted a research to find a suitable effective shear surface. Using the Taguchi method with orthogonal array of Finite Element Analysis and optimal Design of Experiments were set up parameters for the shear surface quality of the car door latch connector terminals. The design parameters used in the analysis is the clearance, the radius, and the blank holding force, the material of the connector terminal is a C2600. Trimming process optimum conditions suggested by the analysis has been verified by experiments, the shear surface shape and dimensions of a final product in good agreement with forming analysis results.Taguchi method from the above results in the optimization for the final rollover and effective shear surface improved for a vehicle door latch to the connector terminal can be seen that the applicable and useful for a variety of metal forming processes other than the trimming process is determined to be applicable.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.731-732
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• 2010

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.3
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• pp.15-21
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• 2008

This paper presents a new association mining algorithm that uses two phase sampling for shortening the execution time at the cost of precision of the mining result. Previous FAST(Finding Association by Sampling Technique) algorithm has the weakness in that it only considered the frequent 1-itemsets in trimming/growing, thus, it did not have ways of considering mulit-itemsets including 2-itemsets. The new algorithm reflects the multi-itemsets in sampling transactions. It improves the mining results by adjusting the counts of both missing itemsets and false itemsets. Experimentally, on a representative synthetic database, the algorithm produces a sampled subset of results with an increased accuracy in terms of the 2-itemsets while it maintains the same 1uality of the data set.

• Journal of the Korean Society for Precision Engineering
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• v.27 no.10
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• pp.23-28
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• 2010

Resistance trimming and cutting processes of printed circuit board by making use of high power UV laser with nano-second pulse width have been proposed and investigated experimentally. Also laser-based application system with high flexibility and complex has been designed and adopted power controller, auto beam size control, auto-focusing and control program developed for ourselves. The function of each module shows that they can be reliable for industrial equipments. Resistance trimming method used a plunge and double cut process with $20{\mu}m$ spot size beam. Results show that double cut process is more effective to control resistance trimming in precision than plunge cut process.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.317-320
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• 2013

트리즈는 처음에는 기술 분야에서 사용되었으나 현재는 창의적으로 문제를 해결하기위해 교육, 문화 등 비 기술적인 부분에서도 많이 연구되고 있다. 프로그래밍 교육방법에서도 가능한 대안을 생각해보고 오류를 검증 및 수정하는 과정에서 창의적인 사고과정이 포함되어 있다. 따라서 프로그램밍 교육에도 트리즈의 원리를 사용한다면 확산적 사고를 증진시키는 프로그래밍을 교육할 수 있을 것이다. 이에 본 연구에서는 트리즈의 40가지 발명원리를 활용한 프로그래밍 교육을 제안하였다. 프로그래밍 교육에 트리즈의 발명원리를 적용하여 프로그래밍에 다양한 방법을 시도하는 창의적인 프로그램 교육이 가능할 것이다. 추후에 프로그래밍 교육을 위한 더 다양한 트리즈의 원리를 활용하는 교육방법 연구가 필요하다.