• 제목/요약/키워드: Original material

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SOA 환경 기반의 의류 생산지원 시스템 설계 및 구현 (Design and Implementation of Apparel Product Support System based on SOA Environment)

  • 한종진;최동운;송행숙
    • 한국콘텐츠학회논문지
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    • 제8권4호
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    • pp.1-9
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    • 2008
  • SOA는 기존 애플리케이션들이 가진 기능을 사업적인 의미를 가지는 기능 단위로 분류하고, 표준화된 호출 인터페이스를 통해 서비스라는 컴포넌트 단위로 재조합한다. 본 논문에서 개발한 시스템은 생산원자재의 절약과 주문 시 생산 시점 예측한다. 그리고 적정한 재고 유지로 원부자재 구입비용과 생산비용을 절감하여 회사의 경쟁력을 증가시킨다. 또한 업체의 생산 공정 및 원부자재 수급 현황을 정확히 분석하여 이를 반영한 SOA 기반의 다품종 소량 생산을 위한 생산관리 시스템을 설계하고 구현하였다.

Sound Absorption and Physical Properties of Carbonized Fiberboards with Three Different Densities

  • Lee, Min;Park, Sang-Bum;Byeon, Hee-Seop
    • Journal of the Korean Wood Science and Technology
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    • 제42권5호
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    • pp.555-562
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    • 2014
  • Characteristics of carbonized fiberboard such as chemical materials absorption, electromagnetic shielding, and electrical and mechanical performance were determined in previous studies. The carbonized board therefore confirmed that having excellent abilities of these characteristics. In this study, the effect of density on physical properties and sound absorption properties of carbonized fiberboards at $800^{\circ}C$ were investigated for the potential use of carbonized fiberboards as a replacement of conventional sound absorbing material. The thickness of fiberboards after carbonization was reduced 49.9%, 40.7%, and 43.3% in low density fiberboard (LDF), medium density fiberboard (MDF), and high density fiberboard (HDF), respectively. Based on SEM images, porosity of carbonized fiberboard increased by carbonization due to removing adhesives. Moreover, carbonization did not destroy structure of wood fiber based on SEM results. Carbonization process influenced contraction of fiberboard. The sound absorption coefficient of carbonized low density fiberboard (c-LDF) was higher than those of carbonized medium density fiberboard (c-MDF) and carbonized high density fiberboard (c-HDF). This result was similar with original fiberboards, which indicated sound absorbing ability was not significantly changed by carbonization compared to that of original fiberboards. Therefore, the sound absorbing coefficient may depend on source, texture, and density of fiberboard rather than carbonization.

대형 크랭크축 리프팅 핀의 경량화를 위한 강도평가 연구 (A Study of Strength Evaluation of Crankshaft Lifting Pin for Reducing Weight)

  • 전병영;김병주;박종두
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2004년도 춘계학술대회
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    • pp.7-12
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    • 2004
  • Large-sized pins are usually used to lift and handle large low speed diesel engine crankshaft. There has then been a need to reduce and optimize the weight of the traditionally used pins. Making an hole by cutting the inside of the pin out was investigated in view of static and fracture strength. To compensate the stress increase caused by the introduction of the inner hole, the groove in the circumferential direction pre-existing on the pin is to be removed. Finite element analysis was carried out for both the original model and weight reduced model. Stress intensity factors for semi-elliptical defects assumed on the pin for the original model and weight reduced model was calculated using the ASME method and compared with the fracture toughness test result of the pin material. The diameter of the cutting hole for the revised model was determined based on the analysis results.

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Effect of Cork Extract on the Mechanical Property of Thermoplastic Polyurethane

  • Taehoon Oh;Seung-Hyun Cho;Bumyong Yoon;Hyejung Yoon;Jonghwan Suhr
    • Composites Research
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    • 제36권2호
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    • pp.86-91
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    • 2023
  • Thermoplastic polyurethane (TPU) is a material whose mechanical properties change according to the phase separation of its unique internal microstructure and is therefore used in various industries. Use of TPU as composites helps in improving the desirable characteristics and properties in accordance with usage. Eco-friendly fillers one of the fillers are on the rise and those are mostly used for reinforcing role. Suberin, which can be extracted from cork, is the main component of cork. It is known to serve high damping property of elastomer composite. The original chemical structure of Suberin is an aliphatic polyester aggregate. In this research, Suberin is obtained after depolymerization into an oligomer having 2 or 3 ester bonds through alkaline hydrolysis. The extracted suberin was added to the matrix which is thermoplastic polyurethane as an eco-friendly filler for improving vibration damping property. As a result, when 10 wt% of suberin was added into thermoplastic polyurethane the existing trade-off relationship was overcome. And it is attained the elastic modulus and damping factor at room temperature improving 92 and 59%, respectively, compared to the original matrix. Those results are from the interaction between the microstructure of TPU and suberin.

업사이클 브랜드 패션가방제품의 표현 특성 연구 (Study on Expression Characteristic of Fashion Bag Products of Up-cycle Brand)

  • 박해인;곽태기
    • 한국의상디자인학회지
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    • 제19권2호
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    • pp.1-14
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    • 2017
  • The consumption trend of fashion in modern industrial society is developing from the rapid changes, and the lifespan of fashion products becomes shorter due to the various industrial wastes. Due to the attitude change caused by the ethical consumption consciousness and environment awareness, the up-cycle fashion products got to receive attention, and it is in the limelight as a new trend to realize the sustainable fashion products in the domestic and foreign fashion. The purpose of this study lies in drawing the expression characteristics by investigating and analyzing the cases of each type on the fashion bag products of up-cycle brand, and contributing to the diversification of product family fitting to the characteristics of fashion bag product of up-cycle brand, systematic strategies of up-cycle fashion products, and activation of up-cycle fashion market. In research methods, the theatrical researches were conducted centered the relevant domestic literature materials, preceding papers, etc., which ran paralleled with the actual case analysis study. Through the preceding research and websites related to selected products, websites of up-cycle companies, relevant books, related articles, etc., the expression characteristics of up-cycle fashion bag products were drawn. The results of this study are as follows: First, as it has the feature of historicality, the designs can be created by containing the designer's story, story of materials, and consumer's story. Second, since it has the characteristic of sustainability, the application of manufacturing process and materials, extension of product life, conversion of original material's function, etc. can be sustainable. Third, as it's a trait of scarcity, all products may be produced by hand, and it can have the specialty which the original materials have. Fourth, since it has an eco-friendly trait, even while saving the original materials, the aesthetic needs could be met according to the consumers' continuous demand.

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선성김씨족보 소재 고려말 장적의 복원 (Restoration of the register of houses, inhabitants and their ancestry in the late Koryo period which is in the Sunsung Kim family registers)

  • 윤상기
    • 한국도서관정보학회지
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    • 제20권
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    • pp.241-284
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    • 1993
  • Through the restoration, we can find that the register of houses, inhabitants and their ancestry, which is in the Sunsung Kim family registers, was fundamentally the census register of Kim Roe including more ancestry transformed into the lists of house, inhabitants and their ancestry of Kim Roe, Kim Bang-Seek, Kim Sung-Sae and Kim Hee-Bo. And we can find also the original forms were considerably damaged. That is, in the course of transformation, considerable parts of the contents of ancestry were not needed, so they were removed, the recordings of brotherandsisters, sons and their servants were also removed. By comparing of the restored census register of Kim Roe and the Sunsung Kim family registers, we can know the fact that when they published the family registers, the contents of the founder to the ninth descendants were totally depended on the census register of Kim Roe. The Census Register of King Taejo of Choson Dynasty(National Treasure No. 131) which has been recorded almost same periods as the census register of Kim Roe was remained as an original state. Therefore, it was greatly helpful for restoring the census register of Kim Roe. There were few materials which we can know the way of ordinary life in Koryo period. But through the census register of Kim Roe and the census Register of King Taejo of Choson Dynasty, we have a glimpse of their life history. Nevertheless we can find some demerits in the census register of Kim Roe as followers : First, it is not an original but a transformed one, while the Census Register of King Taejo of Choson Dynasty is first materials. Second, it was recorded the only one family. Finally, it was omitted the parts of his brotherandsisters, children and servants who lived with their master. According to these demerits its worth of materials for history will be descended more or less. Therefore, when we use this material, we should treat it more considerably.

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조선시대 아동용 한자 학습서를 통해 본 복식명칭 연구 (A Study on Clothing Names in Sino-Korean Study Books in Choseon Period)

  • 김은정;강순제
    • 복식
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    • 제54권4호
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    • pp.97-111
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    • 2004
  • To study the clothing names has been one of the research subjects in the history of clothing since the name could be the basic tool to understand the clothing. In the past, the name of clothing were used in Chinese character which is hieroglyphic. Each character of Chinese has special meaning. They had been changed into Korean after Korean characters were invented. During the period when they were changed into Korean, some of them retained the original meaning while others widened the original meaning. Some of them even translated into totally different meaning. Accordingly, it could be a clue to survey the changing process of Chinese names into Korean by analysing the vocabulary in the books published in Choseon dynasty. In this study, the first step is to survey the children's Chinese vocabulary learning material, Hunmongahoe(1527), Sinzeungliuhap(1576) and Ahackpyun(1804). These books were widely used from 16 to 19 centuries. It has been surveyed how the meaning of clothes names has changed and the special features of changed names. The names appeared in these Chinese vocabulary learning books included headgear, footwear, dress, part names of dress, ornaments, color and names of textile. The followings are observed by studying the names appeared in more than two books above: 1. The same Chinese character were translated differently. 2. Recently the meaning of Chinese character has been reduced or changed into new Chinese character. 3. Some of them retained the same meaning but used different character. It has been observed that some clothing names retained the original meaning but others changed the meaning, or translated into different names. It shows that the appropriate meaning of names should be properly selected when we study the history of clothing.

익산 입점리 1호분 출토 금동관의 제작기법 연구 (Study on the Production Method of the Gilt-bronze Crown Excavated from Ipjeom-ri Tomb 1, Iksan)

  • 이영범
    • 박물관보존과학
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    • 제20권
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    • pp.1-12
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    • 2018
  • 익산시 웅포면 입점리 1호분 출토 금동제유물 편들은 1986년 2월 마을 뒷산에서 한 고등학생에 의해 발견매장문화재로 신고되었고, 이에 국립문화재연구소에서 긴급발굴조사를 실시하였다. 금동대륜, 금동입식, 금동관모, 금동식리 등은 신고자에 의해 수습되어 있었다. 또한 발굴조사 당시 석실 내부가 심하게 훼손되어 많은 수의 금동제유물 편들은 정확한 출토위치를 알 수 없어, 지금까지도 금동관의 조합 관계가 확인되지 않고 있다. 중요 유물인 금동관모, 금동식리 등은 보존처리 후 편 접합을 통해 외형적 모습이 복원되었으며, 금속공예기법으로 새긴 봉황문, 물고기 비늘문, 연화문 등의 문양을 관찰할 수 있었다. 본 글에서는 여러 편들로 파손되어 있는 금동제유물 편들에 대한 특징적 요소와 제작기법을 소개하여 복원의 기초적 학술자료로 제공하고, 이 자료를 바탕으로 입점리 금동관의 원형이 복원될 수 있기를 기대한다.

"본초경집주(本草經集注)"에 대한 서지학적(書誌學的) 연구 (A Bibliographical Study on "Bonchogyeongjipju(本草經集注)")

  • 김용주;백유상;장우창;정창현
    • 대한한의학원전학회지
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    • 제23권2호
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    • pp.191-203
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    • 2010
  • "Bonchogyeongjipju(本草經集注)" is a pharmacological classic published in the Southern and Northern Dynasties(南北朝時代, 420-589 A.D.) in China by Dohonggyeong(陶弘景, 456-536 A.D.). In "Bonchogyeongjipju(本草經集注)", Dohonggyeong(陶弘景) edited "Sinnongbonchogyeong(神農本草經)", the earliest classical text about material medica containing notes for 365 drugs, by adding another 365 drugs and further information from "Myeong-uibyeollok(名醫別錄)" and writing extended commentaries on them. His commentaries include changes in the geographical distribution, identification of varieties and other various special characteristics. The original text had gradually disappeared after other pharmacological classics were published such as "Sinsuboncho(新修本草)", in Dang Dynasty(唐代), "Gyeongsajeungryubigeupboncho(經史證類備急本草)" in Song Dynasty(宋代). All of these books were based on "Bonchogyeongjipju(本草經集注)", so the original text can be seen indirectly through these later sources. In the early 1900's, a transcribed manuscript of the preface "Bonchogyeongjipju(本草經集注)" was found almost wholly preserved except the first three lines, in the Makgo(莫高) cave of Donhwang(敦煌). Broken strips of transcribed "Bonchogyeongjipju(本草經集注)" have also been excavated in Turfan[吐魯番], which shows its original form written in red and black ink. Mayanagi Makoto[眞柳誠] researched on Donhwang(敦煌) and Turfan[吐魯番] editions, ascertained their existence and explained their bibliographical and historical facts. Sangjigyun(尙志鈞) restored "Bonchogyeongjipju(本草經集注)" based on other related sources such as Donhwang(敦煌) and Turfan[吐魯番] editions. " Bonchogyeongjipju(本草經集注)" can be said as the locus classicus(典範) of herbal medicine, that is most of the following materia medica was based on it. It makes it possible to pass down "Sinnongbonchogyeong(神農本草經)" to posterity and provide a foundation for herbal medical development.

黨參의 內部構造規格設定에 관한 硏究 (A study on internal morphological standard in Codonopsis Pilosulae Radix)

  • 김백철;강경식;주영승
    • 한방안이비인후피부과학회지
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    • 제13권1호
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    • pp.253-266
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    • 2000
  • In order to strengthen objectivity and availability of oriental herb medicine, the standard formula for herbs has been attempted to set up by experimenting and documentary testing original herbs which were recorded in authorized document. The object herb medicine is Codonopsis Pilosulae Radix. The internal and external morphological standard in this study is expected to supply the search for several physiochemical reaction, biological reaction, determination of indicator material and identification of gene with basic sources in the future. The result of study is as follows; In the external shape, it was possible that herbs were distinguished according to artificial classification and that same genus-degree of relatedness among herbs could be distinguished by more precise and active observation. In the shape of real herbs, I compared current herbs in market with original herbs which were just collected or were on the course of drying. In addition, it was possible that the internal shape could be identified by using microscope after butanol series. In powder herbs, it was possible to purify the shape by microscope through maceration of natural and powder herbs. Though it was impossible to make distinction of herbs which are not current in my search contents, this search contents will be a standard for alpplying herbs in the future. Despite such a useful character, it was difficult to deal with power herbs because it was uncertain to make a standard for them on account of the crush of these tissue. Since powders shape of herbs in a few documents were regard not as the powder shapes of natural herbs but as the maceration state of them. It is suggested that we should inspect the original herbs which are not crushed yet with a microscope in order to identify crushed shape of powder herbs from now on. An Additional standard establishment including physiochemical reaction and gene research is required in order to supplement the fault of this search. As for the supplement about this search, considering that many kinds of same genus-degree of relatedness are being current now, it is necessary that each herb should he collected only after identifying and that the succeeding search of each herb should be proceeded for the regular establishment of internal and external standard.

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