• Journal of the Korean Society of Clothing and Textiles
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• v.37 no.7
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• pp.864-873
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• 2013

This study analyzed the correlation between the sources of the complaints and various factors such as gender, garment type, fabric type, textile material and washing methods for products. This survey utilized a total of 2,609 consumer apparel product complaint cases filed with the Korea Consumer Agency between 1997 and 2009. In regards to consumer liability: it was found that more incidents of failures due to carelessness were reported among men's clothes, knitted garments, cotton clothes, polyester clothes, wool blend clothes, pants, shirts, sportswear, and laundry only clothes. In regards to dry cleaner's liability: women's goods, woven clothes, silk clothes, cotton blend clothes, jackets, shirts and hanbok, and dry clean only clothes indicated problems more frequently. In regards to manufacture's liability: women's clothes, woven clothes, wool clothes, silk clothes, wool blend clothes, polyester blend clothes, formal dress clothes, jackets, hanbok, and dry clean only clothes indicated problems more frequently. This study provides consumers with information necessary to take preventive measures and basic information that can be utilized to improve the quality of production and services by understanding the sources of dissatisfaction, type of clothes found with problems, and the main causes of consumer complaints for garment products according to who is liable.

• The Research Journal of the Costume Culture
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• v.24 no.6
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• pp.777-787
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• 2016

This study was carried out in order to provide useful data for planning fabrics of summer eco-friendly fashion products. The fabrics used in this study were four cellulose fibers: cotton, cotton/mulberry blended, flax, and flax/lyocell blended. Dyeing with natural indigo was carried out under three different reducing conditions (i.e., general, eclectic, and eco-friendly) that have different reducing agent and pH levels, and hydrosulfite and glucose were used as a reducing agent. The dye uptake (K/S value) of fabrics dyed with natural indigo by a reducing condition was the highest at 660nm. Regardless of the fabrics, dye uptake was the highest under the general reducing condition and the lowest under the eco-friendly reducing condition. Under different reducing conditions, the dye uptake of natural indigo fabrics with the maximum absorption wavelength indicated a difference. The colorfastness of cellulose fabrics that were dyed with natural indigo had a rate of 4 to 5 except for rubbing fastness, which indicated good colorfastness. Additionally, natural indigo-dyed cotton and flax fabrics had good antibiosis. When the color characteristics of fabrics dyed with natural indigo were measured, all of the three reducing conditions created purple blue (PB) colors, and the color characteristics of dyed fabrics by reducing condition and fabric showed significant differences.

• Agribusiness and Information Management
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• v.11 no.2
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• pp.5-15
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• 2019

The world of smart agribusiness is still far from being fully and effectively applied by the Italian entrepreneurial fabric. In part, this is due to the fact that its potential and important connections with the technological world of reference are not fully known. The imperative is therefore: to learn how to manage all the processes that characterize the agricultural chain in a synergistic way, from production to the sale of the product to the final consumer. It is therefore essential to know every minimum aspect of the supply chain considering the current strengths on which to leverage but especially the weaknesses on which to intervene thanks to the use of technology available on the market. Today, the supply chain is still considered as a set of phases, one consecutive to the other, as if they were detached from each other. However, in order to operate efficiently, each step should be interconnected: from the farmer's decision to produce an agricultural good to the choice of production factors, from the implementation of harvesting and post-harvest operations to processing, from the selection of goods suitable for sale to the logic of distribution on the target territory. This work investigates the potential strategy using digital technologies in order to make dynamic the agribusiness supply chain, especially because in Italy the agri-food is one of the most important economic sectors but it is far from the most innovative trends available on the market.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.19 no.1
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• pp.1-6
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• 2008

A wearable T-matching dipole UHF RFID tag antenna has been designed using conductive electro-thread. The conductivity of the electro-thread has been measured depending on the number of twisted thread. The measured conductivity has been used for simulation to have accurate simulation results. The flexible electro-thread or fabric has been used for fabricating the antenna instead of using copper tape since the electro-thread is more flexible and wearable than copper tape. The return loss and reading range of the fabricated electro-thread UHF RFID tag antennas have been tested. The reading range is approximately 2.4 m.

• Journal of Fashion Business
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• v.21 no.2
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• pp.78-90
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• 2017

In this study, brassiere prototype was developed for attaching the measuring module of ECG measurement and body movement while sleeping. For ECG measurement, textile electrodes was made of stretch fabric containing polyurethane in consideration of elasticity of brassiere band. It was used as a conductive yarn by silver coating on the warp. The textile electrodes was woven with twisted twill to increase the density of conductive yarns. The pressure of the brassiere band was enough to sensing stably the ECG, and the elastic band of the brassiere was designed to be wider than 3cm to install the textile electrodes inside, so that textile electrodes was close fitting to the skin at a constant pressure without lifting. The textile electrodes coated with silicon on rear was attached to brassiere elastic band, and the module was installed with a snap connector to textile electrodes of brassiere band. The module was suitable to monitering ECG measurement of a typical R peak, pulse rate and body movement while sleeping without interfering.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.7
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• pp.1532-1536
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• 2004

So far, the quantified elasticity data of textile fabrics has not been present because the measurement method depends on the knowledge of measurement operators. In this paper, the special manufactured measurement equipment using road cell is presented to measure the elasticity coefficient of textile fabrics in real time. The measurement method is based on the voltage differency among textile fabrics. The textiles with strong elasticity are high voltage produced from road cell. The others are low. The presented method can be applied to visualize the textile, sew the cloth, control quality of textile fabrics. Also, these measurement datum are used to B2B electronic trading system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.05a
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• pp.264-267
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• 2002

This paper presents the design of a pipelined virtual output queue routing engine for an advanced input-queued ATM switch, which has a serial cross bar structure. The proposed routing engine has been designed for wire-speed routing with a pipelined buffer management. It provides the tolerance of requests and grants data transmission latency between the routing engine and central arbiter using a new request control method that is based on a high-speed shifter. The designed routing engine has been implemented in a field programmable gate array (FPGA) chip with a 77MHz operating frequency, 16$\times$16 switch size, and 2.5Gbps/port speed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.291-294
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• 2004

In this paper, we consider the broadcast switch architecture for hish performance multicast packet switching. In input and output buffered switch, we propose a new switch architecture which supports high throughput in broadcast packet switching with switch planes of single input and multiple output crossbars. The proposed switch architecture has a central arbiter that arbitrates requests from plural input ports and generates multiple grant signals to multiple output ports in a packet transmission slot. It provides high speed pipelined arbitration and large scale switching capacity.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.62-64
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• 2019

4차 산업 혁명에 들어서며 블록체인 기술이 크게 주목받고 있다. 블록체인의 간단한 정의는 분산 환경에서 모든 노드들이 수정할 수 없는 원장을 관리 하는 것이다. 블록체인은 크게 public 블록체인과 private 블록체인으로 구분할 수 있다. 이중 private 블록체인에 대한 연구가 활발히 이뤄지고 있고, 실제 많은 기업이나 연구소에서 실제 환경이나 시스템에 적용 시키려는 노력을 하고 있다. 많은 블록체인 플랫폼 중 하이퍼레저는 가장 활발히 개발이 진행되고 있는 오픈 소스 프로젝트 중 하나이다. 하이퍼레저는 Linux Foundation에서 주관하는 프로젝트로 그 중 가장 널리 알려져 있는 플랫폼으로 패브릭이 있다. 패브릭은 private 블록체인 기술로 비즈니스 상황에서 조직간 블록체인 환경을 구성하는 것에 초점이 맞춰져 있는 플랫폼이다. 패브릭은 클라이언트가 트랜잭션을 제출한 후 원장에 저장될 때까지의 과정을 독립적으로 실행되는 3 단계로 구분해 놓고 있다. 3단계는 실행, 순서화, 검증 단계로 이루어져 있다. 본 논문에서는 실행과 순서화 단계에 대해 처리시간 분석을 진행한다. 분석한 데이터를 기반으로 어떤 단계의 영향이 가장 큰지 살펴보고 차후 연구에 이용할 것이다. 차후 연구는 실행과 순서화 단계에 대한 처리시간을 줄일 수 있는 연구를 진행할 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.110-112
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• 2019

블록체인은 4차 산업혁명 핵심 키워드 중 하나이다. 하지만 현재 블록체인 기술을 접목시킨 사례는 굉장히 적다. 그것은 블록체인 시스템에서 트랜잭션을 처리하는 속도가 느린 것을 이유로 볼 수 있다. 기존에 빠른 속도로 많은 트랜잭션을 처리하던 시스템에 비해 느린 블록체인 기술을 접목시키는 것은 어려움이 있다. 때문에 블록체인 연구는 합의 알고리즘, 다양한 네트워크 구성 등을 이용하여 트랜잭션 처리 속도를 늘리는 연구들이 진행 중이다. 본 논문에서는 오픈소스 프로젝트인 하이퍼레저 패브릭의 트랜잭션 처리 속도를 향상시키기 위한 방법을 제안한다. 패브릭은 블록에 트랜잭션을 추가하기 위해 독립적으로 수행되는 3단계를 거쳐 수행된다. 그 중 1번째 단계인 보증 단계의 최적화를 진행한다. 패브릭에서 클라이언트로부터 피어가 반복적인 요청을 받을 때 매번 같은 네트워크에 속해 있는 노드인지 확인을 하게 되는데, 한번 보증을 완료한 노드는 일정 기간 동안 노드 확인을 거치지 않고 체인 코드를 수행하여 트랜잭션을 처리하도록 하는 방법을 제안한다.