• 복식
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• 제57권10호
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• pp.24-34
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• 2007

The purpose of this study is to examine the pieces of 100 fabrics excavated from unknown woman's tomb Incheon, by analyzing woven methods, names of the fabrics, the kinds and the shapes of the patterns. The characteristics to assume the period of the fabrics are as follows. The geumsundan which was woven peacock insignia at chest and back area was excavated for the first time from the tomb of Joseon. Peacock insignia woven with satin weave using supplementary golden wefts, wrapped gold thread. These kind of fabrics were usually imported in the $15^{th}$ century, according to the old documents, 'Nogeoldae' 'Joseonwangjosilrok' written at the end of Goryeo or early in Joseon. Thus, these relics are from about $15^{th}$ century. From this tomb, the mixture fabric of cotton and ramie are excavated. According to another excavated cases, the mixture fabric of cotton and ramie appears from the period before the Japanese Invasion of Korea in 1592, and after the invasion, there are usually mixture fabric of cotton and silk. This also tells that these fabrics show the characteristics of those from the early period of Joseon Dynasty. The rounded patterns of Jangot is only shown from the fabrics of late Goryeo Dynasty, and the cloud pattern of an upper garment with a squared neckline is shown from the early Joseon Dynasty. So, the patterns from these excavated costumes are ranged from the late Goryeo Dynasty to the early Joseon Dynasty. To assume the period through the overall study above, these relics show the characteristics of the $15^{th}$ century fabric.

• 복식문화연구
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• 제22권5호
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• pp.712-727
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• 2014

Dahoejangs in the Joseon Dynasty were craftsmen who belonged in the Gyeonggongjang in Hansung government office. Out of 2,841 craftsmen who specialized in 129 types of work, 1 of them were Dahoejangs. Dahoejangs were craftsmen who made cords. However it was not passed down and currently Maedeupjangs are making cords and making Maedeup with the cords they have made. In the Uigwes the composition of Dahoejangs number and types of tools used in creating good for ceremonies are indicated. This study has found records of Dahoejangs from 50 Uigwes. The tools used were indicated as Haesagee, Hapsagee, Hapseongee, Yeonsagee, Sangsagee, Dahoegee, Yungjapan and some others. Haesagee is a tool that winds thread from a skein to a spool. Hapsagee is a tool that combines more than two yarns together. Hapseon is for combining thicker threads. Yeosagee is not a process of scouring for refining, but is assumed to be a tool to twisting yarn. There are no information left about the shape or working methods of Sangsagee but it is considered to be a tool for doubling several threads together. Based on the existing artifacts and painting of Dahoe, it is assumed that threads were woven on usually a round plate or bowl. Youngjapan is considered to be a tool for making tassels. This shows that Dahoejangs made tassels and it was completely separate from making Maedeups. There, it is evident that Dahoejangs made cords as well as tassels but the work of Maedeupjang were constricted to only making Maedeup with the cords given to them.

• 한국인쇄학회지
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• 제20권2호
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• pp.31-43
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• 2002

Screen printing is a stencil process whereby ink is transferred to the substrate through a stencil supported by a fine fabric mesh. Therefore screen had a tendency to distort and swell, as ink was deposited between the fibers, and were difficult to clean. The tow importance of stencil parameters that affect print quality are stencil thread diameter and the fabric thickness because of their influence on both ink deposit and print definition. Since screen printing inks can be formulated to adhere to almost any surface, and the printing process itself can be handled almost any substrate in a wide variety of shape, screen printing is a very versatile process. The small size pronting is reproduced image used screen printing because the surface of substrates is not suited at screen printing method. In screen printing, the need of high definition printing is gradually increasing according to developing special inks. A conventional haftone, so called AM screening, is simple and easy to implement, but the haftone dot patterns by using this method are not free for the moire fringe. This paper is used densitometry and image analysis to investigate relation with printing according to screen mesh, opening size and resolution of copy in image reproduction used FM screen. We had the good result of dot gain and tone reproduction on the screen printing of high definition using FM screen.

• 한국의류학회지
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• 제31권11호
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• pp.1598-1610
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• 2007

The knit design of this study was developed from reconstruction of Gustav Klimt images including gorgeous colors, symbolic lines, patterns and decorations, and the purpose was laid at making of unique, creative costume image with modem sense and adding artistic value on crochet knit wears. As for the contents and method of this study, We analysed formative aspects of Gustav such as line, color and shape Klimt in his art, and reviewed the cases where his works had been employed in modern costume. The conclusions are as follows; First, painting is important motif for contemporary costume design, and according to the individual thinking and expression, can be a major momentum for development of original design. Especially the organic lines and decorative patterns of Gustav Klimt paintings were suitable for rich decorative motif of costume design. Second, the unique colors of Gustav Klimt paintings can, if introduced to costume, allow new color combination. Third, crochet technic, by the texture of material, can present rich expression even with the basic knitting only. The embroidery metallic thread which is the main material for this study, was good for expression of gorgeous and classy image, in spite of the difficulties from its typical luster and embossed feeling. And the mohair, used as decorative motif, allowed more three dimensional expression with its rich voluminous and tangling property. Fourth, in applying Gustav Klimt paintings to costume design, other technics such as knitting, beading, applique, and patchwork helped creation of more unique clothes, presenting possibilities of rich artistic expression.

• 소성∙가공
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• 제27권6호
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• pp.370-378
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• 2018

Cold forging, carried out at room temperature, leads to high dimensional accuracy and excellent surface integrity as compared to other forging methods such as warm and hot forgings. In the cold forging process, WC-Co (Tungsten Carbide-Cobalt) alloy is the mainly used material as a core dies because of its superior hardness and strength as compared to other structural materials. For cold forging, die life is the most significant factor because it is directly related to the manufacturing cost due to periodic die replacement in mass production. To investigate die life of WC-Co alloy for cold forging, mechanical properties such as strength and fatigue are essentially necessary. Generally, uniaxial tensile test and fatigue test are the most efficient and simplest testing method. However, uniaxial tension is not efficiently application to WC-Co alloy because of its sensitivity to alignment of the specimen due to its brittleness and difficulty in thread machining. In this study, shape of specimen, tools, and testing methods, which are appropriate for uniaxial tensile test for WC-Co alloy, are proposed. The test results such as Young's modulus, tensile strength and stress-strain curves are compared to those in previous literature to validate the proposed testing methods. Based on the validation of test results it was concluded that the newly developed testing method is applicable to other cemented carbides like Titanium carbides with high strength and brittleness, and also can be utilized to carry out fatigue tests for further investigation on die life of cold forging.

• 대한본초학회지
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• 제36권1호
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• pp.87-95
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• 2021

Objective : Liquidambaris Storax, the processed resin of Liquidambar orientalis Mill., has been therapeutically used as orifice-opening medicinals in Korean Medicine. However, unauthenticated resinous drugs from various origins were sold as Liquidambaris Storax. This study aimed to establish the quality assessment of genuine Liquidambaris Storax and to provide quantitative differences of Liquidambaris Storax in herbal markets. Methods : Bibliographic research on ancient Liquidambaris Storax was performed using classic books of herbology. The quality assessment was approached by searching modern books of herbal medicines. The marker compounds in Liquidambaris Storax from various origins were quantitatively analyzed using high-performance liquid chromatography. Results : L. orientalis was botanically characterized by palmately 5-lobed shape of leaves. Genuine Liquidambaris Storax was recognized as resinous or semi-solid form (ancient―Song dynasty) to liquid form (Myeong/Cheong dynasty) and two processed forms were available in current markets. Genuine liquid Liquidambaris Storax should be lengthened as a thread when it was lifted by a stick and be sunken under the water. The crystals of cinnamic acid was seen under microscopic observation and the scent of benzaldehyde occurred after the treatment with potassium permanganate. Cinnamyl alcohol, cinnamic acid, and cinnamaldehyde were quantified in two liquid samples of Liquidambaris Storax, while cinnamaldehyde was not quantified in resinous (semi-solid) sample. Conclusion : This study presents the detailed methods of quality assessment for genuine Liquidambaris Storax as well as the status in the herbal markets. Further quantitative study with diverse samples is required to establish the quality standard of Liquidambaris Storax.

• 한방안이비인후피부과학회지
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• 제19권2호
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• pp.130-145
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• 2006

Objectives : The aim of this work is the approaching of properties-flavours theory and the making of morphological standard in Artemisiae herba. Methods : The properties-flavours theory were attempted with bibliographic method and various climate-information. The external-internal morphological standards were determined by using stereoscope and butanol series. Conclusions : The following is a list the conclusion of the approaching of properties-flavours theory and how to make the standard of morphological standard in artemisiae herba. 1. The significant analysis for the artemisiae herba as the properties-flavours theory, is a follow-up survey of the effect written in the official oriental medicine book 2. The other analytic methods according to the gathering time, processing or storing system or especially nature or growth environment(altitude, temperature,. the mean moisture, and the agronomical survey) by way of the explanation of properties-flavours theory appears so many insufficiency at the many cases. 3. In the case of artemisiae herba., there are 2 cases(Artemisia capillaris $T_{HUNB}$ and A. iwayomogi $K_{ITAMURA}$) in current and recently A. aruwa L. is substituted for artemisiae herba in circulation. 4. The external and internal characteristics according to the shape of original plant or herbal states, entirely correspond to all the official oriental medicine boo 5. According to the place of productiot the difference appeals. (1) A. capillatis $T_{HUNB}$. has leaves like a fine thread, and A. iwayomogi $K_{ITAMURA}$ has big and wide leaves, and shows some reddish color, and A. aruwa L. has narrow leaves, its section lines long vertically. (2) In the internal shapes, as the A. capillatis $T_{HUNB}$. leaves', upper epidermal cell wall shows relatively straight form, its all upper- lower epidemical cell wall has a stoma, and calcium rosette crystal is relatively few. As iwayomogi $K_{ITAMURA}$, all upper- lower epidermal cell wall is wavelike concave, and hypodermics has many stoma and many calcium rosette crystal. (3) In the internal shapes of A. aruwa L. the shape of leaves' epidermal cell is irregular and has so many non-glandular hair nad glandular hair on its surface.

• 대한치과교정학회지
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• 제39권4호
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• pp.203-212
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• 2009

골밀도가 높고 두꺼운 피질골에 마이크로임플란트를 self-drilling 방식으로 식립하는 경우 과도한 수준의 골부하 (bone loading)가 발생할 위험이 있으며 이는 인접골의 정상적인 골개형(bone remodeling)에 장애를 초래할 수 있다. 이에, 본 연구에서는 유한요소해석으로 두께 1.0 mm의 피질골에 Absoanchor SH1312-7 마이크로임플란트((주)덴토스, 대구, 대한민국)가 self-drilling 방식으로 식립되는 과정(10회전, 식립깊이 5 mm)을 모사(simulation)하였으며 식립 단계별로 피질골에 발생되는 스트레인을 조사하였다. 식립중 마이크로임플란트 첨부의 절삭연(cutting flute)에 의한 골삭제로 생기는 나사길(threaded groove)의 치수를 얻기 위하여 가토 경골에 마이크로임플란트를 식립/제거한 후 Micro CT (Explore Locus RS, GE Healthcare, Ontario, Canada)를 이용하여 기하형상을 측정하였으며 이를 치밀골의 유한요소모델에 반영하였다. 해석결과, 치밀골에 발생되는 스트레인은 임플란트 식립깊이에 따라 증가하였고, 초기단계에서 나사산에 인접한 골에 국한되던 과부하 부위(스트레인이 4,000${\mu}$-strain을 상회하는 영역)가 식립깊이 증가에 따라 인접골 전체, 즉 나사산 인접부는 물론 골(valley) 부위에 접하는 모든 영역으로 확장되었다. 본 연구를 통해, self-drilling 방식으로 마이크로임플란트를 식립할 때 치밀골에 발생하는 스트레인 크기는 생리적인 골개형을 저해할 수 있는 수준임을 확인할 수 있었다.

• Journal of Advanced Marine Engineering and Technology
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• 제41권1호
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• pp.118-124
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• 2017

본 연구대상 디젤기관의 연접봉 볼트, 크랭크 핀 베어링 볼트 등의 손상원인을 조사 분석하기 위하여 수행한 현장검사, 파손부에 대한 시험 및 고찰, 참고문헌 및 연구자의 경험 등을 통하여 다음과 같은 결론을 얻었다. 파손된 크랭크 핀 베어링 볼트는 연접봉 볼트보다 늦게 파손된 것으로 추정된다. 파손된 연접봉 볼트는 충격적인 하중에 의해서 취성파괴된 것이 아니고, 비정상적인 반복하중(예를 들어 체결 볼트의 풀림 등)에 의해서 피로파괴가 되었다는 것을 그 파단면의 모습을 통하여 알 수 있다. 파손된 연접봉 볼트용 U 너트는 윤활유(고착방지제)의 부적절한 사용, 각 실린더와 연접봉 별로 구분되어 사용되지 않았던 것 등으로 인하여 표면 상태가 불량하게 되었고, 이것은 연접봉 볼트의 파손사고에 영향을 미쳤을 가능성이 있다고 할 수 있다. 그리고 파손된 국내 제작품인 연접봉 볼트와 크랭크 핀 베어링 볼트의 기계적 성질, 전조공정 등은 해당 볼트의 설계요건에 적합하다고 할 수 있다.

• 대한수의학회지
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• 제32권3호
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• pp.381-387
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• 1992

건강한 무지개송어의 치어와 실험적으로 세균성 아가미병을 감염시킨 무지개송어의 치어에 있어서 아가미 조직과 그 병원균인 Flavobacterium branchiophila에 대하여 주사형 전자현미경(SEM)과 투과형 전자현미경(TEM)으로 관찰하였다. F branchiophila는 길이 $5{\sim}8{\mu}m$, 폭 약$0.5{\mu}m$의, 2~3균체가 서로 연결된 길고 가는 장간균으로서 균체의 주위에는 다수의 선모(pili)를 갖고있었다. 세균성 아가미병의 초기병소는 초미세 형태학적으로 이차새변의 비후에 의해 시작되며 병원균은 아가미 표면과 일정한 거리를 유지하며 부착되어 있었다. 주사형 전자현미경의 관찰에서 건강한 물고기의 아가미 표면은 미로와 같은 모양과 미세 섬모상의 돌기로 특정지어 질 수 있는 상피세포가 보이나 실험적으로 감염된 아가미 표면에서는 새변의 선단에서 부터의 증생 융합과 함께 표면의 미세구조가 붕괴되어 잘 관찰되지 않았다. F branchiophila는 표면에 실뭉치와 같이 엉클어져 부착되어 있었으며 5% 식염처리후에는 그 형태가 일정치 않았다.