• 한국정밀공학회지
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• 제28권7호
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• pp.814-820
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• 2011

It takes long time in numerical simulation because structural design for tire requires the nonlinear material property. Neural networks has been widely studied to engineering design to reduce numerical computation time. The numbers of hidden layer, hidden layer neuron and training data have been considered as the structural design variables of neural networks. In application of neural networks to optimize design, there are a few studies about arrangement method of input layer neurons. To investigate the effect of input layer neuron arrangement on neural networks, the variables of tire contour design and tension in bead area were assigned to inputs and output for neural networks respectively. Design variables arrangement in input layer were determined by main effect analysis. The number of hidden layer, the number of hidden layer neuron and the number of training data and so on have been considered as the structural design variables of neural networks. In application to optimization design problem of neural networks, there are few studies about arrangement method of input layer neurons. To investigate the effect of arrangement of input neurons on neural network learning tire contour design parameters and tension in bead area were assigned to neural input and output respectively. Design variables arrangement in input layer was determined by main effect analysis.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2008년도 추계학술대회 논문집
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• pp.277-280
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• 2008

Multi layer bellows are being manufactured for commercial vehicle because of the characteristic of high durability compared with single iaγor bellows used to passenger vehicle. Finite Element Method (FEM) study and optimization about single layer bellows are actively progressed, but FEM study about multi layer bellows which have gap between layer is rarely processed. Therefore, this article presents finite element modeling of multi layer bellows for the improvement of simulation reliability. For the shape optimization of multi layer bellows, design of experiment and Taguchi method are used.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 컴퓨터소사이어티 추계학술대회논문집
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• pp.41-44
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• 2003

In this paper, we propose design of PCI Express Physical Layer for IP. The proposed design is compatible with PCI Express Base specification Revision 1.0a. and supports only single Lane. The best feature of this design is that Physical Layer includes Power Management block. Therefor, the entire design of PCI Express component is simplified. In the near future, as optimizing this design and extending Lane, we will redesign Physical Layer.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.283-284
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• 2008

A cross-layer optimization is becoming a popular design methodology for the IP based next generation wireless network. We begin by investigating a cross-layer optimization scheme to enhance the system performance in wireless networks. By applying cross-layer optimization methodology to WiBro distributed network, the WiBro systems are expected to gain significant performance improvement and resource utilization enhanced. For further study we highlight some open challenges and new opportunities for cross-layer design.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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• pp.777-778
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• 2006

This paper deals with the optimum rotor design approach about the multi-layer design of the buried magnets in an Interior Permanent Magnet Synchronous Motor (IPMSM), on the efficiency improvement by using Response Surface Methodology (RSM). In the multi-layer design of the prototype 15kw IPMSM, the constant amount of buried PM is split from the single-layer into double-layer design for improving the efficiency characteristics. The optimum double-layer rotor structure is built with the help of RSM analysis. The improvement of IPMSM efficiency is verified by the Finite Element Method (FEM) results comparison with the prototype single-layer IPMSM.

• 한국생활과학회지
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• 제18권3호
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• pp.793-798
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• 2009

Hair cut is one of the best useful technical tool for hair styling. In this study using the rule of the layers of hair design, balanced for visual art, perceptual ability and form created by the principles of analysis and offer hair cuts and hair design of the representation of regions and even hair design as the basis of a student of Hair Beauty and all the people working in the field can create a variety of hair design puts the purpose to establish a basis. The result of this study can be outline as follows: First, the step line and the movement of the relationship between the law of the layers above and below the length of the same layer techniques, the same consists of a vertical cross-section of the overall round shape of the cut same layer is created and the appropriate volume and movement, the movement of low-layer round a little bit more feeling and expression is used when you want. High-layer used to want to move a lot of light and could see that. Second, the layer of the Law and over direction, lifting, section, the line control. weight control and analyzed by principle and the principle of the process of forming the written form was unknown. Third, hair design, the expansion of the expressive power of the law of the layers, and the section of the over direction depends on the presence of line control to express the length of the outline I had to, lifting the weight to adjust form controls, and the expression of Hair Design will be expanding the width. A hair designer, a layer style to create a zone he thought the law of the first layer formative area To further the reach will be a lot of research, leading up formative aspects of this research thesis do not have missing parts, or as a result of the Beauty of Hair Design and the width of a hair design education in the field can perform to help feed the reference materials that will be.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2006년도 추계학술발표대회 논문집
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• pp.125-128
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• 2006

In the history of space design, the concept and application of Multi-Layer can be easily found in various projects. As life styles in the contemporary cities are becoming more and more complex and inter-related to each other, the concept of multi-layer is re-considered In terms of constructing differentiated life patterns as well as multi programs within certain physical buildings or designs. This study aims to analyze the brief history of multi-layer in space design and the contemporary applications in recent architectural as well as interior design projects. It is concluded that the concept of multi layer is not only useful for constructing an interesting spatial organizations, but can also be a vital tool for re-organizing the contemporary urban programs that cannot be considered with the preconceived existing terms.

• 한국지반환경공학회 논문집
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• 제3권1호
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• pp.57-66
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• 2002

도로포장설계시 일반적으로 동상방지층을 노상층에 포함시키지 않고 단지 노상층의 CBR을 산정하여 그 강도에 적합한 도로포장구조를 결정하고 있다. 그러나, 현재 추세는 동상방지층을 노상층에 포함시켜 포장구조를 설계하고 있다. 동상방지층을 포함한 노상층의 평균 CBR을 사용하는 경우 노상층만의 CBR에 비해 상대적으로 큰 강도를 나타내므로 포장구조 두께는 감소한다. 그러나, 동상방지층을 포함한 노상층의 평균 CBR 산정식이 별도로 규정되어 있지 않으므로 CBR 결정에 많은 혼선을 가져오고 있다. 따라서, 본 연구에서는 동상방지층을 포함한 노상층의 평균 CBR을 산정하기 위하여 실내 및 현장 CBR 시험을 실시하였다. 실험결과를 근거로 노상층의 평균 CBR 산정에 편리한 수정식을 제안하였다. 또한, 노상층만의 CBR을 사용한 포장설계시와 동상방지층을 포함한 노상층의 평균 CBR을 사용한 포장설계시 포장두께를 비교하여 경제성을 검토하였다.

• 한국군사과학기술학회지
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• 제3권2호
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• pp.179-188
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• 2000

Multi-disciplinary optimization design concept can provide a solution to many engineering problems. In the field of structural analysis, much development of size or topology optimization has been achieved in the application of research. This paper demonstrates an optimum design of a multi-layer cylindrical tube which behaves thermoelastically. A multi-layer cylindrical tube that has several different material properties at each layer is optimized within allowable stress and temperature range when mechanical and thermal loads are applied simultaneously. When thermal loads are applied to a multi-layer tube, stress phenomena become complicated due to each layer's thermal expansion and the layer thicknesses. Factors like temperature; stress; and material thermal thicknesses of each tube layer are very difficult undertaking. To analyze these problems using an efficient and precise method, the optimization theories are adopted to perform thermoelastic finite element analysis.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2001년도 디자인학연구 2001 봄 학술발표회 논문집
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• pp.74-75
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• 2001