• Journal of the Korean Institute of Telematics and Electronics S
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• v.34S no.3
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• pp.12-23
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• 1997

In this paper, we propose a new cell switch fabric for increasing the performance of ATM switching systems. Proposed switching network consists of a sorting network and a routing network. Both of these are multistage networks where each stage performs a fixed permutation on the incoming lines, and then routes them through a clumn of 2x2 switching elements. It is designed for distributing inputs and parallel processing to reduce the hardware complexity and obtain high performance of switching network. The structure and the operation of th eswitching network aredescribed and the performanceof the switching network is anlyzed under uniform traffic models. In this result, though the size of proposed network is increased the large scale, it has always the same throughput as the that of genral output queueing system with N=2. So, it is found that our proposed network is appropriate for the high apeed and lrger size of ATM switching systems.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.35.1-35
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• 2001

The aim of our study is to automatically analyze how textile is woven which has complicated structure, such as textile with multi-layer structure. For this purpose, we propose a method to reconstruct a textile structure of a textile is visualized. Then, the anteroposterior sections of the same yarn on the cross sectional images is associated each other by superimposing them. Therefore, by this method, 3-D information of each yarn is obtained and the 3-D shape of each yarn is independently expressed. In this research, a 3-D reconstruction of a plain weave fabric is performed.

• Proceedings of the Korean Fiber Society Conference
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• 2003.10a
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• pp.112-112
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• 2003

A Web-based fabric information system has been developed. Recently the numbers of textile companies that have their own homepage to advertise their product fabrics for apparel through the Web-based E-commerce rapidly increase.(omitted)

• The Magazine of the IEIE
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• v.29 no.10
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• pp.1235-1235
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• 2002

광패킷 라우터의 실험시제품들이 최근 잇달아 발표되면서 광패킷 라우팅 기술을 이용한 광 인터넷의 실현 가능성이 점점 높아지고 있다. 본 고에서는 광패킷 라우팅 기술의개요와 그 연구 현황을 광스위치 fabric을 중심으로 소개하고, 발표된 실험시제품들을 정리하였으며, 이를 이용한 광 라우팅망의 구조를 제시하였다.

• The Magazine of the IEIE
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• v.29 no.10
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• pp.89-98
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• 2002

광패킷 라우터의 실험시제품들이 최근 잇달아 발표되면서 광패킷 라우팅 기술을 이용한 광 인터넷의 실현 가능성이 점점 높아지고 있다. 본 고에서는 광패킷 라우팅 기술의개요와 그 연구 현황을 광스위치 fabric을 중심으로 소개하고, 발표된 실험시제품들을 정리하였으며, 이를 이용한 광 라우팅망의 구조를 제시하였다.

• Proceedings of the IEEK Conference
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• 1999.11a
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• pp.105-108
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• 1999

In this paper, we define the high-speed router as a router, which can support aggregated ports over 25Gbps, and provide issues and trends in high-speed router design. We propose design considerations on IP packet forwarding, switching fabric, packet scheduling and buffer management, network resource reservation, and router operation and administration.

• Journal of the Korean Home Economics Association
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• v.49 no.1
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• pp.121-133
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• 2011

This research was designed to compare the subjective evaluation of texture image and preference between offline and online by structural characteristics of women' jacket fabrics for spring and summer. 78 participants evaluated the sensibility image and preference of various fabrics. The data were analysed by factor analysis, t-test, Pearson's productive correlation, regression, and multi dimensional scale. The results were as follows: Sensibility image factors of women' jacket fabrics were 'classic' 'sophisticated' 'natural' 'characteristic' and 'practical'. Between offline and online, sensibility images showed no differences. In sensibility images, 'classic'-'sophisticated', 'natural'-'practical', and 'practical'-'characteristic' images showed significant correlation. By analyzing the contribution of fabric structure on sensibility images, density affected on the 'classic' image offline and online. By the results of regression analysis, thickness, density and weave affected on the tactile preference. In sensibility images, 'classic', 'sophisticated' 'characteristic' images were the influencing factor. 'Sophisticated', 'natural', 'characteristic' and 'practical' images affected on the purchase preference.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.394-397
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• 2003

In this paper, we describe the implementation of high performance buffer manager that is used in an advanced input-queued switch fabric. The designed buffer manager provides wire-speed cell/packet routing with low cost and tolerates the transmission pipeline latency of request and grant data. The buffer manager is implemented in a FPGA chip and supports the speed of OC-48c, 2.5Gbps per port.

• Fashion & Textile Research Journal
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• v.15 no.6
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• pp.1000-1009
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• 2013

Well-fitting riding breeches provide a comfortable ride. Horse-riding breeches should fit the lower body with patches located on the inside of hip and knees to prevent tears and slips. This study provides information about the fit of women's breeches using 3D human body scan data wearing commercially available two breeches according to posture. To get information about breeches fit, we measured the angle of waist line, the length, and the area of the breeches fit on four 20's women. This research showed the problem which was down for waist back line in the case of the horseback riding pose. The back waistline of the riding breeches should be raised compared to the front waistline; subsequently, an increased waistline angle results in less back waistline decrease. The breeches have plenty of length from back waist to crotch so the breech fit can be improved. The thigh circumference increased when riding in the front; therefore, good elasticity of the weft direction of the fabric is recommended. The length increase and the peripheral increase of the front knee significantly increased the surface area of the knee; consequently, knee patch material should be a two-way elastic fabric in all directions to enhance comfort according to riding motion.

• Journal of Information Processing Systems
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• v.8 no.2
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• pp.359-374
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• 2012

In this paper, we propose a new machine vision algorithm for automatic defect detection on patterned textures with the help of texture-periodicity and the Jensen-Shannon Divergence, which is a symmetrized and smoothed version of the Kullback-Leibler Divergence. Input defective images are split into several blocks of the same size as the size of the periodic unit of the image. Based on histograms of the periodic blocks, Jensen-Shannon Divergence measures are calculated for each periodic block with respect to itself and all other periodic blocks and a dissimilarity matrix is obtained. This dissimilarity matrix is utilized to get a matrix of true-metrics, which is later subjected to Ward's hierarchical clustering to automatically identify defective and defect-free blocks. Results from experiments on real fabric images belonging to 3 major wallpaper groups, namely, pmm, p2, and p4m with defects, show that the proposed method is robust in finding fabric defects with a very high success rates without any human intervention.