• Environmental Engineering Research
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• 제8권1호
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• pp.8-14
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• 2003

• 월간포장계
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• 통권359호
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• pp.59-63
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• 2023

• 월간포장계
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• 통권359호
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• pp.64-67
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• 2023

• 한국분말재료학회지
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• 제20권2호
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• pp.120-124
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• 2013

This study is carried out to develop the new process for the fabrication of ultra-fine electrodes on the flexible substrates using superhydrophobic effect. A facile method was developed to form the ultra-fine trenches on the flexible substrates treated by plasma etching and to print the fine metal electrodes using conductive nano-ink. Various plasma etching conditions were investigated for the hydrophobic surface treatment of flexible polyimide (PI) films. The micro-trench on the hydrophobic PI film fabricated under optimized conditions was obtained by mechanical scratching, which gave the hydrophilic property only to the trench area. Finally, the patterning by selective deposition of ink materials was performed using the conductive silver nano-ink. The interface between the conductive nanoparticles and the flexible substrates were characterized by scanning electron microscope. The increase of the sintering temperature and metal concentration of ink caused the reduction of electrical resistance. The sintering temperature lower than $200^{\circ}C$ resulted in good interfacial bonding between Ag electrode and PI film substrate.

• 조형예술학연구
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• 제6권
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• pp.267-287
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• 2004

The study of a new expression within Korean ink painting that meets the demands of the times has continued, resulting in various expressions with acrylics, handycoat, objects and installations, crossing over from traditional Korean painting techniques. A 'margin' was both a very important space and esthetical matter that expresses 'Ki', 'Distance', and 'Omission' in traditional sense when addressing Korean ink painting Its expression methods and concepts, however, have changed today. A 'margin' through Montage technique can be a significant example in understanding the expression methods of today's Korean ink painting. This is because the margins in Montage make the meaning of the work various and flourished and deeply construct the surface with a double-layered structure, instead of using a single layer. These 'margins' created by Montage are spaces where different images conflict, divide and continue with each other and where a reconciliation between different spaces is accomplished. Furthermore, they establish more vitality and truthfulness to life through both the images conflict and reconciliation. After the adoption of Post-modernism Art in Korean ink painting, the characteristics of the 'margin' in Montage style by the division of surface are an 'acceptant's participatory imaginative space'; where viewers fill the margins with their imaginations ; an 'abandoned space' ; where unnecessary parts are deleted for more live surface ; and a 'strategic space', where the work enriches the structure and contents of surface by using margins strategically.

• Restorative Dentistry and Endodontics
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• 제13권1호
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• pp.151-158
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• 1988

The purpose of this study was to evaluate the effect of canal filling methods and post-space preparation time on the apical seal of endodontically treated teeth. Seventy-six single-rooted human teeth were divided into 6 groups and each tooth was obturated and prepared post-space according to the purpose of this study. After all specimens were immersed in Indian ink, decalcified and cleared, the degree of dye penetration into the root canals observed by magnifying glass (X20) and measured by caliper. The results were as follows: 1. In the thermatic condensation, no significant difference in ink penetration occured when the post-spaces were created immediately after obturation or when they were made a week later. 2. In the lateral condensation, no significant difference in ink penetration existed between teeth whose post-space were prepared immediately or delayed. 3. In comparison of experimental groups and control groups, no significant difference showed when the groups were obturated with McSpadden compactor but when the teeth were laterally condensed, the experimental groups showed less ink penetration than controls. 4. Thermatic condensed teeth with McSpadden compactor were less ink penetration thn laterally condensed teeth.

• 한국전기전자재료학회논문지
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• 제31권3호
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• pp.171-176
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• 2018

An electronic paper display was fabricated by injecting electronic ink, including white and black particles coated by positive and negative charge control agents (CCA), respectively, into closed cells surrounded by micro-barriers. These two types of charged, colored particles are easily damaged or their charging value can be changed by the injection process; therefore, the electrical and optical properties of the image panel fabricated by the injection method were estimated in this study. The active particle-loading method, proposed as a new electronic ink injection process, was applied, and the electro-optical properties of the resulting three-electrode-type e-paper image panel were analyzed. The reflection rate of the white image-panel fabricated with our new injection method was 24.7%, while that of the same panel fabricated with a previously reported injection method was 19.8%. In addition, the response time was improved by about five times compared to those reported in other publications.

• 한국인쇄학회지
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• 제2권1호
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• pp.45-64
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• 1984

다색 망점 인쇄물에서 색을 측정하는데는 여러가지 방벙이 있는데, 본 논문에서는 농도 측정법과 자극치 직독법으로, 본문 Ink 화학주식회사에서 나온 SPACE Color New Apex-G Color Chart를 사용하여 두 방법의 측정 결과를 비교, 검토하였다. Process Ink 인 Y, M, C, RI 을 10, 20, 30...90, 100% 의 망점 면적 비교로 변화시켜 측정한 결과 다음과 같은 결론을 얻었다. 1. Y Ink는 가장 이상적인 Ink로 575 nm부근의 주파장을 가졌다. 2. M Ink는 다른 성분을 제일 많이 함유하고 있었다. 3. 원색 분해할 때에 B1 판의 필요성이 확인되었다. 4. 색의 혼합 결과는 M+Y 의 혼합 때 가장 결과가 좋았다.

• 마이크로전자및패키징학회지
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• 제11권1호
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• pp.49-57
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• 2004

습도센서의 감습막으로 응용하기 위하여 폴리이온넨계 전해질 잉크를 제조하였다. 감습필름 은 금전극이 인쇄된 알루미나 기판 위에 잉크젯 인쇄 기법을 사용하여 도포 하였다. 또한 methyl methacrylate, acrylic acid, 2-hydroxyethyl methacrylate 그리고 [(2-methacryloyloxy)ethyl)ethyl]trimethylammonium chloride의 공중합체를 합성하였으며, 이것은 침적코팅에 의한 감습막 제조에 사용하였다. 상대습도에 따른 전기적 특성을 측정하였으며 침적코팅에 의한 습도센서와 비교하였다. 습도센서는 상대습도가 증가함에 따라서 저항의 감소함을 보여주었으며 그들의 저항특성은 시료간에 가깝게 일치함을 보여주었다.

• 접착 및 계면
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• 제14권4호
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• pp.167-174
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• 2013

본 연구에서는 ink binder용으로 isophorone diisocyanate (IPDI)/polyether polyol/2-hydroxyethyl acrylate (HEA)계 UV 경화형 우레탄 아크릴레이트를 중합하였다. HEA/PETA 혼합 비율을 달리한 조성물의 UV 조사 시간에 따른 광경화거동을 FT-IR spectrophotometer, probe tack tester 및 Photo-DSC로 확인하였다. UV 조사 시간이 증가함에 따라 전환률 및 gel content는 증가하였으며 probe tack은 감소하였다. 반응성 희석제로 사용한 PETA 함량이 증가함에 따라 저장탄성률, 인장강도 및 초기분해 온도가 증가하였다. HEA/PETA 비율이 30/70인 경우 UV 경화 후 PMMA sheet에 대한 부착특성이 가장 우수하였다.