• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.590-596
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• 2020

The fabric used for military winter inner clothing(top) is quilted with padded cotton to provide warmth. This quilting fabric is generally manufactured with yarns that intersect and are sewn substantially between the fabric and cotton. Thus, it is impossible to separate the fabric and cotton once after the quilting fabric is manufactured, which can result in a significant loss of fabric and cotton when separated. In this study, after fabricating the quilting fabric, we investigated a method to stabilize change rate of thickness and increase the warmth keeping property through subsequent processing without damaging the fabric. A relatively method of passing the quilting fabric through a part of the cotton production facility was used generally, and the following results were obtained. This indicates that after the quilting fabric was manufactured, the warmth keeping property was improved through the subsequent processing steps, so that the change rate of thickness due to washing was stabilized.

• Journal of IKEEE
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• v.20 no.4
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• pp.454-458
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• 2016

Generally, fix the end of the fabric to pin with the fabric tenter process. At this time, the pin fixing part of the fiber fabric bulges and deforms. The deformation of the textile causes deterioration of the quality of the textile product. Detection of fiber fabric selvage portion is always required in the processing of the fabric. This research is a non-contact sensor for sensing fiber selvage. In this study, Developed a non-contact fabric selvage detecting sensor for use in automatic selvage cutting system. For the production of the fabric selvage detecting sensor prototype it was produced by placing thirty two sensor 2.5 mm interval. The selvage sensor system experimentally confirmed that actual selvage detection is possible.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.11a
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• pp.145-147
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• 2000

본 연구는 각기 다른 종류의 원단으로 운동복을 만들어 선수들에게 입혀서 운동을 20분간 실시하게 하여 원단에 따라 쾌적감을 평가하였다. 실험방법은 피부온도를 4부위 측정하였고 가슴부위에서 의복 내 온도를 측정하였으며 매 5분마다 주관적인 쾌적감을 신고하도록 하였다. 연구의 목적은 다른 종류의 원단으로 제작한 운동복에 따른 쾌적감과 피부온도의 변화와 의복내 온도의 변화를 알아봄으로서 원단별로 쾌적감을 느끼는 피부온도와 의복 내 온도를 찾아내고 운동복의 디자인이나 설계에 적용하여 쾌적한 운동복을 개발하고자 한다. 그 결과 동일한 원단에서 운동시의 쾌적감은 부위별 피부온도가 높을 때 보다 낮을 때에 쾌적감을 느끼고 있다는 것을 알 수 있었다. 즉 운동 시에 발생하는 열을 의복이 열 평형을 이루기 위해 빨리 열을 밖으로 배출할 수 있는 의복의 디자인이 필요하다는 것을 알 수 있었다. 각기 다른 원단에서는 시간별 감각평가를 비교한 결과 PE/Wool의 원단이 쾌적하다는 평가를 하였다. 처음 의복을 입었을 때와 운동 중 그리고 운동 후에 피부온도나 의복 내 온도 변화가 적을 때에 쾌적하다는 평가를 하였다.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.2
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• pp.48.3-48.3
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• 2018

천문학회 교육홍보위원회 산하 해외교육지원단에서는 2016, 7년 1, 2기 원정대에 이어 3기 원정대 6명을 선발하여 2018년 9월 17-21일 5일 동안 캄보디아 시소폰의 Xavier Jesuit School에서 약 30명의 중등 과학 선생님들을 대상으로 천문연수를 진행하였다. 3기 원정대에서는 다양한 경험과 경력을 가진 대원들이 참여하게 되어 망원경을 활용한 실습 수업 뿐만 아니라 연수에 참여한 과학 선생님들이 직접 수업에 활용할 수 있는 기본 천문학 수업들을 포함하였다. 그리고 최신의 천문학 연구를 소개할 수 있는 현대 천문학 수업을 준비하여 참가자들에게 더 다채로운 천문학 세계를 소개할 수 있었다. 해외교육지원단에서는 캄보디아와 같이 천문학 교육에 소외된 나라의 천문교육지원 사업을 지속적으로 지원할 계획이며 특히, 각 지역의 과학 교사들에게 연수기회를 제공함으로써 교육자들을 통해 각 지역의 어린 학생들이 천문학을 접할 수 있는 기회가 많아지기를 희망한다. 또한 직접 연수를 받은 과학 교사들의 천문학에 대한 관심을 높이고 천문학 연구의 필요성을 인지할 수 있게 도울 예정이다.

• Journal of Environmental Impact Assessment
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• v.24 no.5
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• pp.407-419
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• 2015

The unit load of paddy field was estimated by several methods and compared in this study. Four year field study was conducted at the paddy fields located in Yeongsan river and Sumjin river basins. The unit load was estimated by four methods; (1) averaging field monitored load; (2) NIER (National Institute of Environmental Research) method which use EMC(Event Mean Concentration) and runoff ratio of rainfall groups with rainfall weighting factors; (3)method using EMC determined by best fit probability distribution; (4)method using arithmetic mean EMC and runoff ratio. The result of this study showed that the unit loads of water quality constituents by field monitoring was similar to those of NIER method whereas those by probability distribution(log-normal, gamma) method were less than unit loads of NIER method. The unit loads by arithmetic mean EMC and runoff ratio were larger than those by NIER method. The unit load by NIER method showed higher BOD, COD, SS, lesser T-N, and similar T-P values when compared to unit loads determined by MOE in 1995.

• Environmental and Resource Economics Review
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• v.15 no.3
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• pp.425-450
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• 2006

The index of energy intensity(energy/GDP) has been a primary policy concern since it can clarify industry sectors which use energy intensively and generate $CO_2$ emission heavily. Although energy intensity index may be suitable for estimating $CO_2$ emission from an isolated industry sector, we need an index for induced $CO_2$ emission since industrial activities are interconnected in terms of input and output. By employing Environmental Input-Output Table 2000, this paper analyses the flow of energy demand and pollutants after first estimating an induced $CO_2$ emissions from various industrial sectors and economic activities. The paper reports higher induced $CO_2$ emissions from industry sectors with larger energy intensity since they produces goods or services retaining relatively considerable environmental load. Furthermore, it is shown that environmental load and $CO_2$ emissions in overall economy are likely increasing when the products of energy intensive industrial sector is used as inputs for less intensive sectors' production process. The result suggests we need consistent policy efforts to reduce energy intensity to lower $CO_2$ emissions.

• Science of Emotion and Sensibility
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• v.21 no.1
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• pp.155-164
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• 2018

The temperature is a sense that can be felt by touch and sight. However, the concept of the temperature sensation is rarely used together with the concept of visual sensation and tactile sensation. In this study, the sensation of the temperature sensed through tactile and visual sense was investigated by the visual temperature depending on color and material characteristics. The textile was selected as a sample that could include color and material characteristics. The textile sample was composed of each 15-16 kinds of Yellow, Red, Blue, and Green of total 90 samples. The analytical method was to analyze first, the warm-cool of the colors of Yellow, Red, Blue, Green, and then to the visual temperature according to visual classification and tactile classification. And we investigated the correlation of the visual temperature depending on weight, thickness, and unevenness. As a result, the number of textiles felt by Cool and Warm differed according to the warm-cool of the colors feeling in the same textile. However, the visual temperature was different to each classification of textile. In particular, it was noticeable in thin, see-through and matte textiles. In relation to weight, thickness, unevenness and the visual temperature, the textile classification related to the weight is a classification of a hard, matte textile, and the textile classification related to the thickness is a thin, see-through textile.

• Magazine of the Korean Society of Agricultural Engineers
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• v.63 no.4
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• pp.19-26
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• 2021

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.60-60
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• 2011

막구조는 근래에 와서 대공간 구조 및 지붕구조에 가장 보편적으로 사용되는 경량 인장 구조물로 각광받고 있다. 구조용 막재는 풍하중 및 설하중에 충분히 감당할 수 있도록 강도와 내구성을 가지고 있어야 한다. 일반적으로 막구조 재는 PVC코팅 폴리에스터막, 실리콘코팅 유리섬유막, PTFE코팅 유리섬유막이 있다. 제직되는 원단의 크기가 한정되어 있기 때문에 재단 후 접착하여 제작한다. 이 때문에 이음부분이 나 재단부분에 코팅으로 인한 접착이 어려워 고온고압으로 접착을 한다. 이 연구에서는 실리콘코팅 유리섬유막의 접착시 어려움을 보완하기 위해 저온 Plasma를 이용한 처리법으로 방전에 의해 Plasma를 발생시켜 50w, 100w 출력으로 10분, 20분간 처리하여 그 결과를 접촉각과 SEM 관찰을 통해 표면처리를 관찰하였다. Plasma 처리로 인해 실리콘 표면층에 균열이 발생하고 표면이 갈라짐을 확인할 수 있었다. 접촉각측정 결과 Plasma 출력과 시간의 증가함에 따라 접촉각은 감소하였다. 실리콘코팅 원단에 저온 Plasma 처리한 후 표면 특성을 분석하고 원단을 접착을 시켜 박리 강도를 측정함으로써 막구조 원단의 접착력 향상에 대한 연구를 진행하였다. KS K 0533 접착포의 박리 강도 시험방법으로 실리콘코팅 원단의 박리 강도를 측정한 결과 플라즈마 처리 원단이 플라즈마 미처리 원단보다 박리 강도가 향상된 것을 확인할 수 있었다. 저온 Plasma 처리 시간이 증가할수록 표면의 젖음성을 향상시켜 접촉각을 낮추었다. 이는 곧 표면에너지의 증가를 뜻하는 것으로 접착력을 증가시켜 실리콘코팅 원단의 접착성을 시킴으로써 강한 강도와 내구성을 갖춘 막구조물의 개발에 기대되고 있다.

• Journal of the Korea Society of Computer and Information
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• v.7 no.3
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• pp.30-35
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• 2002

This study is for developing an algorithm to detect defects of manufactured textile fiber. We used CCD Video Input Equipments in order to capture fiber textile images. Though most of the fiber manufacturing procedures consist of automatic systems, present textile detecting systems are depending on manual inspection system. However this method is not very economical. Therefore we can expect high production rate in the fiber manufacturing area if we could develop and utilize an image processing algorithm to inspect defects of textile fiber. The study was aimed at and achieved development of an detecting algorithm using image processing methods and related mechanical system which enable to detect missing of threads, mixing of unnecessary materials, polluted areas, scars, and colour differences in the textile. Through this study we could devise a manless system for detection of fiber textile and Provide possibilities which apply the image Processing techniques to the other manufacturing inspection systems.