• Title/Summary/Keyword: copperplate

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Microwave Properties of Ag Conducting Paste with Various Preparation Conditions (Ag가 함유된 전도성 도료의 제조 조건에 따른 고주파 특성)

  • Park, Sang-Hoon;Kim, Jeong-Pyo;Seong, Won-Mo
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.18 no.9
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    • pp.827-832
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    • 2005
  • Dual band internal antennas were fabricated with Ag conducting paste of various preparation conditions and different print thickness by silk screen print. We have investigated microwave properties were compared Ag conducting paste antenna with copperplate antenna at 800 MHz and 1,800 MHz. Gain of Ag conducting paste antenna was improved when preparation conditions were the single size Ag particle, using dry type resin and high Ag containing percent. However, it was lower than that of copperplate antenna within $0.1\~2.0dBi$ at 800MHz. In addition, it was improved at 800MHz when thickness of Ag conducting paste was printed more than skin depth but it was held after critical print thickness. On the other hand, it was reached level of copperplate antenna at 1,800MHz.

Development and Design of Modern Europe Chintz - Focusing on England and France - (근세 유럽 경사(更紗)의 발전과 디자인 - 영국과 프랑스를 중심으로 -)

  • Lee, Kyung-Hee
    • Fashion & Textile Research Journal
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    • v.14 no.2
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    • pp.211-221
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    • 2012
  • The word 'chintz' is thought to be a corruption of spotted cloth. Printing remained a relatively primitive method of decorating textiles in Europe until the second half of the 17th century. The formation of the English East India Company sparked the influx into the West of painted and printed Indian cotton textiles. A William Sherwin took out the first English patent in 1676. The earlist European designs were florals in the Indian manner. Patterns of European flowers returned to England as birds, flowers, trees, vines and stained glass for Victorian chintz. In France, the original and most successsful manufacturer of the distinctive printed fabrics from Jouy was Christophe Philippe Oberkampf. Copperplate printing was introduced to Jouy in 1770, probably reaching the pinnacle of achievement in the craft after 1783 when Jean-Baptiste Huet became chief designer. Huet's style was widely imitated in France and abroad, and the term 'toile de Jouy' has come to be universally applied to monochrome figurative designs wherever and by whomsoever they were produced. Oberkampf served his apprenticeship as an engraver with some leading manufacturers, including a period in Mulhouse. In Alsace, which was not part of France until 1798, the first factory had opened in 1746 in Mulhouse, and the area soon had the largest number of print-works in France.

Cartographic Characteristics of the 'Carte do Cassini' and Its Place in the Development of Cartography (카시니 지도의 지도학적 특성과 의의)

  • Jung In-Chul
    • Journal of the Korean Geographical Society
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    • v.41 no.4 s.115
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    • pp.375-390
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    • 2006
  • The Carte do Cassini is the first accurate topographic map of an entire country and it influenced enormously in the development of cartography in other countries. The purpose of this paper is to examine the production process and characteristics of the Carte do Cassini, and to and the place of 'Carte de Cassini' in the development of cartography. For this, firstly, the background of French national topographic mapping is examined and scientific work of the Cassini family is resumed. Second, the map production process is considered; location and attribute data collection, copperplate printing, social and economic difficulties. Third, map characteristics such as map projection, sheet numbering system, positional accuracy, legend, typographies, and depiction of cartographic signs are explored. Finally, the influence of the Carte de Cassini on cartographic development and its historical meaning is discussed.

Power Generation Characteristics of Uni-morph Piezoelectric Cantilever with Different Vibration Angle (진동 각도에 따른 유니몰프 압전 캔틸레버의 발전특성연구)

  • Kim, Chang Il;Yun, Ji Sun;Park, Woon-Ik;Jeong, Young-Hun;Hong, Youn Woo;Cho, Jeong-Ho;Paik, Jong Hoo
    • Journal of Sensor Science and Technology
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    • v.26 no.2
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    • pp.107-113
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    • 2017
  • Energy source of a piezo-electric harvester is vibration. Sources of vibration are machineries operated with high frequencies, constructions and people operated with low frequencies and etc. In this study, we tried to figure out power generation properties over vibrations upon angles of a piezo-cantilever for applying them to movements of the construction and/or people, which are vibration sources at low frequencies. A uni-morph cantilever with a $59mm{\times}29mm{\times}0.2mm$ piezo-electric element attached on a $71mm{\times}46mm{\times}0.25mm$ copperplate was used. A spring was attached to the lower side of the cantilever and a mass was attached on the opposite side. Also, a structure with a specific angle which is an angle in between the ground and the cantilever was prepared and then, connected to a spring or the cantilever. Then, this structure was divided into the A-type and B-type and excited in the direction of z- axis. After that, the angle between the ground and the cantilever was changed and excited by 1 to 10 Hz upon the existence of a spring and/or a mass to compare power generation properties.

The Convergence of Fine Art and Printing Technology in the Early Modern Netherlands (근대 초 네덜란드의 인쇄술과 미술의 융합: 루벤스와 보르흐트의 사례)

  • Jung, Won
    • Journal of Digital Convergence
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    • v.18 no.5
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    • pp.391-397
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    • 2020
  • This article aims to introduce a representative case of convergence among art, technology and science, and look into the factors that contributed to its success. The focus is specifically brought to the cooperation between the Plantin Press and local painters in Antwerp in the Netherlands during the 16th century. The Plantin Press scored huge successes through collaboration with Flemish artists such as Rubens and Borcht. This helped the artists to use their talents in a new medium or to secure a job that appreciates their values. The Plantin Press outdid its competitors in the market through applying new techniques on its works. Great botany books also came out as a result of such convergence. The backdrop to the Netherlands appearing as the center of botanical studies in the 17th century is the concerted efforts of the painters that created quality illustrations and the publishers that knew how to use them efficiently.

Manufacturing Technique of Gilt-Bronze Objects Excavated from Tomb No.1(Donghachong) in Neungsan-ri, Buyeo

  • Shin, Yong-bi;Lee, Min-hee;Kim, Gyu-ho
    • Korean Journal of Materials Research
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    • v.30 no.9
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    • pp.453-457
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    • 2020
  • Tomb No. 1 (Donghachong) of the Buyeo Neungsan-ri Tomb complex (listed as UNESCO World Heritage Site), is a royal tomb of the Baekje Sabi Period. One wooden coffin unearthed there is an important relic of the funerary culture of the Baekje. This study examines the production techniques of gilt-bronze objects attached to the wooden coffin excavated from Donghachong. The base metal of the gilt-bronze object is pure copper, with single α phase crystals in a heterogeneous form containing annealing twins; Au and Hg are detected in the gilt layer. We suggest that the surface of the forging copperplate is gilded using a mercury amalgam technique; it is thought that the annealing twins of the base material formed during the heat treatment process for the sheet metal. The gilt layer is three to five times thicker for the gilt-bronze objects found near the foot of the coffin than those near the head. We estimate the plating process is carried out at least three times because three layers are identified on the plate near the head. Therefore, it is likely that the materials and methods used to construct the gilt-bronze objects found in different parts of the coffin are the same, but the number of platings is different. This research confirms the metal crafting techniques used in Baekje by the examination of production techniques of these gilt-bronze objects. Further, our paper presents an important example of restoration and reconstruction for a museum exhibition, through effective use of scientific analysis and investigation.

Printing Medium Characteristic Study of Monotype and Monoprint (모노타입과 모노프린트의 판화 매체적 특성 연구)

  • Song, Dai-Seup
    • Journal of Science of Art and Design
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    • v.11
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    • pp.79-108
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    • 2007
  • "Printing is an Art of reproduction & a Technique of However printing has extended its limitation from a genre of reproduction itself and now it stands on the turning point as an art such as painting or sculpture which expresses artist's originality. Early Printing has had relations in depth with press printing in terms of information recording, preservation, and transmission. It was acknowledged value in a way of information satisfaction different from how it is valued as a pure art today. But, later printing has transferred its function from a mean of reproduction to pure art due to the development of printing skills and photography invention. It can be said that the concept of modern printing is taking over its genealogy as a creative work not as just printing. Also its expression capability is widen to dimensional printing and high-tech multimedia from original tradition techniques. As we discussed above, modern painting is very open to various changes. This modern painting aspect can be seen as an extended interpretation of 'board' concept. This dissertation raises a question why monotype and monoprint couldn't secure its position in printing history in spite of numerous artists' tryouts in its way. Monotype and monoprint fundamentally based on intaglio technique in its history. Yet, its systematic study hasn't been worked out. This is because of the lack of recognition of monotype and monoprint's originality as printing. Especially in monoprint, it has known as an early stage in copperplate printing process which is an attempt to solve the technique limitation or trial work for edition. Likewise the reason why monotype and monoprint remains at the edge of printing border ambiguously is because of conceptual, technical characteristics which are against traditional printing. In traditional printing, the concept of board is important as a method of reproduction. Different from the fact, monotype and monoprint accept the form of medium 'board' conceptually out of limited condition as mentioned. Thus monotype and monoprint hasn't stand out for several reasons until late 20th century when it started come out to public as people starts to have interests that works from famous artists are actually based on monotype and monoprint. This dissertation likes to step into the monotype and monoprint theoretically which is not well known in domestic and try to study the meaning of monotype and monoprint as a printing medium which is also hasn't been considered sincerely. For this study the process follow as below. First, look into how monotype and monoprint has a concept and history. Next, check differences through comparison with traditional printing and how printing can be understood in what aspects at the same time. After, verify how monotype and monoprint have influence on the acceptance of extended concept of 'board'. This study will show the expressional possibility of monotype and monoprint which has already known as 'tableau printing' in today's situation where adventurous experiments of printing medium are going on with the development of technology.

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