• Title/Summary/Keyword: e-printing

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Textile Trend Analysis shown in Textile Fair - Focusing on 2004/05 F/W $Premi\grave{e}re$ Vision - (의류소재전(衣類素材展)에 나타난 소재(素材) 경향(傾向) 분석(分析) - 2004/05 F/W Premiere Vision을 중심(中心)으로 -)

  • Kim, Sin-Hee
    • Journal of Fashion Business
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    • v.7 no.5
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    • pp.17-31
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    • 2003
  • $Premi\grave{e}re$ Vision is a leading textile collection held since 1973. In this study, textiles for 2004/05 F/W season in $Premi\grave{e}re$ Vision were analyzed at the various point of view, such as general trend, sub-theme, fiber content, color trend, structure, yarn trend, pattern, texture, decoration, finishing and other technical treatment, and functionality. There were three general trends; natural/ecology, geometry, and combination. Natural color and texture were widely used over the fabric exhibited, and irregularities expressed the natural trend of textiles. Geometric patterns were used for knit as well as for woven. Geometry expressed by various methods such as weaving, knitting, printing, shearing, embossing, and etc. However, geometry shown in this season was not a clear form expressed by weaving, but a blurry, irregular form expressed by various other methods such as knitting. The combination among heterogeneous fibers, yarns, colors, images, and textures was usual, however, the harmony among them was accomplished.

Effect of Electrode Formation Process using E-beam Evaporation on Crystalline Silicon Solar Cell (E-Beam evaporation을 이용한 전극 형성 공정이 결정질 실리콘 태양전지에 미치는 영향 분석)

  • Choi, Dongjin;Park, Se Jin;Shin, Seung Hyun;Lee, Changhyun;Bae, Soohyun;Kang, Yoonmook;Lee, Hae-Seok;Kim, Donghwan
    • Current Photovoltaic Research
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    • v.7 no.1
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    • pp.15-20
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    • 2019
  • Most high-efficiency n-type silicon solar cells are based on the high quality surface passivation and ohmic contact between the emitter and the metal. Currently, various metalization methods such as screen printing using metal paste and physical vapor deposition are being used in forming electrodes of n-type silicon solar cell. In this paper, we analyzed the degradation factors induced by the front electrode formation process using e-beam evaporation of double passivation structure of p-type emitter and $Al_2O_3/SiN_x$ for high efficiency solar cell using n-type bulk silicon. In order to confirm the cause of the degradation, the passivation characteristics of each electrode region were determined through a quasi-steady-state photo-conductance (QSSPC).

4" E-ink Active-matrix Displays based on Ink-jet Printed Organic Thin Film Transistors

  • Koo, Bon-Won;Kim, Do-Hwan;Moon, Hyun-Sik;Kim, Jung-Woo;Jung, Eun-Jeong;Kim, Joo-Young;Jin, Yong-Wan;Lee, Sang-Yun;Kim, Jong-Min
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1631-1633
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    • 2008
  • We demonstrate 4-in QVGA active-matrix electrophoretic display based on ink-jet printed organic transistors on glass substrates. Our TFT array had a bottom-gate, bottom-contact device architecture. The organic semiconductor and gate dielectric were solution processed. The field-effect mobility of the printed devices, calculated in the saturation region, was $0.1{\sim}0.3cm^2/Vs$ at Vg=-20 V.

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A Study on 'Language-Letter' images and politics of 'écriture' in Kim, Soo-Yung's poems (김수영 시의 '언어-문자' 이미지와 '에크리튀르'의 정치학)

  • Lee, Chan
    • Cross-Cultural Studies
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    • v.26
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    • pp.173-200
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    • 2012
  • This paper examines ${\acute{e}}pist{\acute{e}}m{\grave{e}}$ of ${\acute{e}}criture$ and its politics in Kim, Soo-Yung's poems, focusing on 'language-letter' images such as "speech", "language", "printing type", "letter", "brush", "book" and so on. While the previous papers fail to present the overall framework of analysis on 'language-${\acute{e}}criture$' images and to show political dimensions of discourse analysis, this paper tries to overcome these limitations. It explains images of 'speech' and 'language' on the basis of Heidegger's ontological thought, and analyzes writing-images such as 'type', 'letters' using Derrida's concepts of 'archi-${\acute{e}}criture$' and '${\acute{e}}criture$'. It also gives a new name to multiple images of 'book' in his poems as 'politics of ${\acute{e}}criture$' based on problematic such as Badiou's 'ethics of truths' and Derrida's '${\acute{e}}criture$'.

Magnetic Resonance Imaging uses 3D Printed Material of Headset (Noise Reduction Effect) (자기공명영상 검사 시 3D 프린팅 재료를 이용한 헤드셋 연구 (소음저감 효과))

  • Choi, Woo Jeon;Kim, Dong Hyun
    • Journal of the Korean Society of Radiology
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    • v.12 no.3
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    • pp.335-341
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    • 2018
  • With the improvement of medical state, patients' expectations for the most advanced medical equipment are increasing. Particularly, Magnetic Resonance Image (MRI) is used as one of the core image diagnosis methods in all clinical area. However, it has been reported that many of patients who go through the examination suffer from anxiety to the severe noise level during the examination. In this study, both the noise reduction evaluation of headsets with sound-blocking materials added to existing sound-absorbing materials and the existence of sound blocking materials as artifacts on the examination image are tested. An MRI test noise is recorded as a speaker by cross-ordination the sound material (sponge) and the sound material (acrylic plate, copper plate, and 3D copper plate) inside the headset made from 3D pring. A quantitative assessment of headsets showed that the average headset value was 81.8 dB. The average dB value of the most soundproof material combination(Copper, acrylic plate, sponge, sponge) headsets on headsets with added charactering material was measured at 70.4 dB, and MRI showed that the copper was diamagnetic substance and excluded. The second most soundproof headset(Sponge, acrylic plate, 3D copper plate, sponge) was measured at 70.6 dB and MRI showed no artifacts. The same simulation of the material printed with a 3D copper PLA containing approximately 40 % copper powder resulted in no artifacts, therefore, the material output as a 3D printing was better suited for use. For MRI related research, the mutual development of 3D printing is highly anticipated.

Manufacture of Printing and Writing Papers from Old Corrugated Containers (OCC) (Old Corrugated Containers (OCC)로부터 인쇄·필기용지 제조)

  • Lee, Goo;Ahn, Byoung-Jun;Paik, Ki-Hyon
    • Applied Chemistry for Engineering
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    • v.10 no.3
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    • pp.367-373
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    • 1999
  • Increasing consumer demand for recycle of most paper products is challenging manufacturers to use lower value raw materials while maintaining high quality. This study was carried out to investigate the composition of old corrugated containers (OCC) and to manufacture printing and writing papers of over 85% (ISO) brightness by ECF and TCF bleaching from OCC. Fiber length of American old corrugated container (AOCC) was longer than that of Korean old corrugated container (KOCC) in fiber length. The former was composed of unbleached kraft pulp (UKP) of about 80 percentage, the latter about 20 percentage. OCC is feasible for manufacturing of pulps i.e., AOCC is for printing and writing papers and KOCC is for whiteboards, in the aspects of brightness and mechanical properties on the other hand, the cost of manufacturing upgraded papers by OCC is high because of bleaching chemicals. Neverthless, considering various aspects, especially environment, there are many advantages in recycling. In case of the treated AOCC pulp, over 85% (ISO) brightness can be achieved through TCF or ECF bleaching step, while the treated KOCC pulp did not allow high brightness through TCF bleaching. The tensile index of the bleached KOCC pulp was lower than that of the bleached AOCC pulp, but the burst and tear index of KOCC was higher than that of AOCC.

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Evaluation of Applicability of Customized Bolus According to 3D Printer Material Characteristics (3D 프린터 소재 특성에 따른 맞춤형 볼루스의 적용성 평가)

  • Kyung-Tae Kwon;Hui-Min Jang;Myeong-Seong Yoon
    • Journal of the Korean Society of Radiology
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    • v.17 no.7
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    • pp.1091-1097
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    • 2023
  • Bolus is used in radiation therapy to prescribe an even dose to the tumor when the skin surface is inclined or has irregularities. At this time, the dose to the skin surface increases. Due to the patient's unique body structure and irregular skin, voids may occur between the bolus and the skin, which may reduce the accuracy of treatment. Therefore, in this study, the existing bolus and the self-produced bolus through 3D printing were applied to the nasal area, and the difference between the surface dose after treatment plan and the dose directly measured with an Optically Stimulated luminescence(OSL) dosimeter was compared to the existing bolus. The bolus rate was 97%, PLA 100.33%, ePETELA 75A 100.53%, and ePETELA 85A 100.36%. It was confirmed that there was little error in the measurement values and treatment plan values for each material. In addition, compared to when applying a conventional bolus, a difference of -3% to +0.5% for a 3D printed bolus can be confirmed, so a customized bolus produced through 3D printing can complement the shortcomings of the existing bolus. It is believed that there will be.

Screen Printing Designs using the Lotus as a Source of Inspiration and Selected Design Criteria by E. Paul Torrance (E.Paul Torrance 의 디자인 기준에 의하여 선택된 연화문(蓮花紋)을 응용한 스크린 프린팅 디자인 연구)

  • 한명숙;남기선
    • The Research Journal of the Costume Culture
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    • v.5 no.3
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    • pp.118-128
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    • 1997
  • 본 연구의 목적은 「Guiding Crieative Talent」의 저자이자 교수인 E.Pual Torrance에 의하여 제시된 디자인 기준(design criteria) 중에 3가지 디자인 기준을 선택하여, 스크린 프린팅기법에 의거, 일련의 디자인을 제작하는 것이다. 이 디자인 기준은 1958년, Torrance에 의하여 수행된 \"The Minnesota Tests of Creative Thinking\" 중 일부이다. 그는 \"창의적인 발상전개에 있어서 보다 더 주의를 요하는 것은 마지막 생산물(the products)이 아니라 그것의 과정(the process)인 것이다.\"라고 강조해 왔으며, 창의적 사고에 관한 개념을 제시해 왔다. 본 연구의 디자인은 그 창작의 착상의 모티브(motif)로써 연화문(蓮花紋)을 선택하여 다양한 디자인의 스크린 프린팅을 창작하였다. 12개의 디자인이 제작되었데, 그것은 Torrance에 의하여 제안된 약 20개의 기준(criteria) 가운데 저자가 디자인 착상에 있어서 최소한의 기본요소라 생각되어, 임의로 선택한 3가지 기준에 의하여 만들어졌다. :3가지 기준이란 1) 모티브(motif)의 수적증가(multiplication) 2) 모티브(motif)의 위치변화 3) 모티브(motif)의 모양변화이다. 전체적인 디자인과 테두리 디자인(border design)이 선택적으로 디자인 과정에 포함되었으며, 최종적으로 12개의 디자인이 선택, 1가지의 색채를 이용하여 스크린 프린팅에 의하여 제작되었다. 디자인 제작과정으로, Torrance의 각각의 디자인 기준에 의한 여러 장의 스케치를 그린 후, 그중 12개의 스케치를 임의로 선택하여 옷감위에 프린팅하였다. 디자인 제작 결과, 저자가 선택한 3개의 디자인 기준만으로도 다양한 수의 서로 다른 디자인 창작이 가능하였으며 본 연구에서는 1개의 디자인 기준을 선택 응용하였으나 보다 많은 디자인 기준을 선택하여 동시에 비교 연구하는 것도 필요하다고 본다. 그리고 1개 이상의 디자인 모티브(motif)를 함께 디자인 착상에 이용하는 것도 가능하다고 본다.

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A Study on Optimal Proofing Conditions for Evaluation of the Domestic Offset Prints (국내 오프셋 인쇄물 평가를 위한 최적의 Proofing 조건에 관한 연구)

  • Lee, Won-Kyu;Cho, Ga-Ram;Ko, Chul-Whoi
    • Journal of the Korean Graphic Arts Communication Society
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    • v.29 no.1
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    • pp.1-21
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    • 2011
  • Because of high demand of color quality of the prints, proof prints are more important for end-user to predict and correct the final prints directly as an intermediate. Thus, proof prints can be used as a reference to take minimum ${\Delta}E^*ab$between the originals and finals in the field. The advantage of proof prints is to predict and correct color easily through the RIP(Raster Image Processor) without printing plates and plate making steps. While, it is thought that the proof systems are almost equivalent to the press in the past, present proof systems are more simple to take proof prints more easily due to the automation and digitalization. This paper addresses a method to perform an accurate profiling according to proof paper types and find optimal proof papers which meet proofing requirement. Although proof papers are matched with ISO 12647-7, we were trying to reduce ${\Delta}E^*ab$, In addition to the above, through the Gamut Mapping and Iteration, We were trying to find optimal proofing conditions.

A Study on Status and Utilization of Korean Rare Books in Collège de France (꼴레쥬 드 프랑스 소장 한국 고서의 현황과 활용방안)

  • Lee, Hye-Eun;Lee, Hee-Jae
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.4
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    • pp.235-251
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    • 2011
  • The aim of this article is to outline the history and importance of the Korean rare books in Coll$\grave{e}$ge de France. With this purpose in mind, the historical background and the process of how these books came to Coll$\grave{e}$ge de France were studied through cataloguing the list, and then analyzing them by subject, printing type, and timeline. We examined the relationship between the private collections of Maurice Courant(1865-1935) and the Korean rare books held in Coll$\grave{e}$ge de France. The Bibliographie Cor$\acute{e}$enne written by Maurice Courant is the most important reference book for studying the publication of the late Joseon dynasty and finding the whereabouts of the Korean books in France. Also, we tried to figure out the best way to implement and make use of a bibliographic database, and contribute to the exploration and study of Korean Cultural Heritage scattered outside Korea.