• 한국인쇄학회지
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• 제23권2호
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• pp.59-75
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• 2005

In gravure printing, the amount of ink from cells has a great effect on the qualities of final printed products. And printability of final products is determined by every kinds variables. Ink transfer process is not verified scientifically because gravure cell is of small size and print speed is rapid. Therefore in order to study of ink transfer mechanism, this study is using the Computational Fluid Dynamics Evaluation. Polyflow 3-10 simulation software is used for considering of non-Newtonian flow. Among the various factors, this study have dealt with gravure cell types used computer simulation in order to define distinctive features in ink flow and transfer. The results of simulation, it defined the distribution of pressure, speed, stream function, viscosity, shear rate during the gravure printing. It is fined out the difficulties and characteristics according to the shape of cell types. Through this study, the condition of gravure printing is depending on the print condition and characteristic of cells.

• 한국산학기술학회논문지
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• 제14권8호
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• pp.3768-3776
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• 2013

본 연구는 여중생의 도형 심리 유형에 따른 스트레스 대처와 자아 정체성에 관한 연구로 대도시 여중생 507명을 대상으로, 도형심리유형을 나타내는 그림을 그린 후 도형분석 상담 전문가가 분석하고, 스트레스 대처, 자아정체성 설문을 작성하였다. 이를 SPSS WIN 18.0을 사용하여 빈도분석, ANOVA와 Duncan 사후검정, t-test로 분석하였다. O(다혈질)이 60%로 구성, 자아정체성의 "자기수용"이 S(우울질)과 ${\triangle}$(담즙질)에 비해 유의하게 높고(p=.041), ${\triangle}$(담즙질)은 스트레스 대처 양식의 "자기비난"을 O(다혈질)에 비해 유의하게 높게(p=.025) "일탈행동"을 O(다혈질), S(우울질), ${\Box}$(점액질)에 비해 유의하게 높게 사용하였다(p=.017). 또한 자아정체성이 높은 경우, 외향적인 성격, 스트레스를 잘 대처하고 해소하는 방법이 있는 경우에 긍정적인 스트레스 대처 양식을 유의하게 사용하는 것으로 나타났다. 다양한 집단에서 도형 심리 유형 파악을 활용할 것과 중학생의 자아정체성 확립을 위한 방법 모색을 위한 추후 연구를 제언한다.

• 한국인쇄학회지
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• 제29권1호
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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.

• 한국자동차공학회논문집
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• 제6권6호
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• pp.7-14
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• 1998

A graphic user interface program for the design of vehicle suspension system is developed in this work. Graphic templates are designed by using a graphic language and a library and given to users for interactive data input. Several suspension types are graphically given, and the information of hard points can be directly provided on the graphic templates by users. The information is saved in a data structure which can be efficiently accessed, and transformed into another data format. The data transformation is for the interface to an analyzer by which suspension design characteristics can be calculated.

• 대한인간공학회지
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• 제34권5호
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• pp.401-410
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• 2015

Objective: The present study was to improve the graphic user interface (GUI) of a military computer-based training (CBT) system in terms of usability. Background: Existing studies have focused on usability evaluation of a particular GUI type such as sequence, hierarchy, or context type; however, few research has been conducted which identifies preferred GUI features based on a comparative analysis of different GUI types. Method: A comparative evaluation was conducted by 9 CBT design experts using a 7-point scale (1: very low, 4: neutral, and 7: very high) on hierarchy and context GUI types of a military CBT system in terms of 10 usability criteria. Then, preferred features of the hierarchy and context types being accommodated, a new GUI was developed and validated by 22 CBT users. Results: While the hierarchy type was found preferred by 1.6 times in terms of controllability to the context type, the opposite was found in terms of attractiveness, simplicity, and responsiveness by 0.6, 0.8, and 0.8 times, respectively. The proposed GUI was found superior to the hierarchy and context types in terms of accessibility and informativeness by more than 1.5 times, but inferior to the hierarchy and context type in terms of simplicity by 0.6 and 0.9 times, respectively. Conclusion: The new GUI developed by accommodating the preferred features of the hierarchy and context types improves usability in terms of accessibility and informativeness except simplicity. Application: The comparative analysis of various GUIs can be applied to develop an improved GUI in a systematic manner based on preferred features of the existing GUIs.

• 한국산학기술학회논문지
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• 제13권3호
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• pp.1021-1026
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• 2012

치열한 미디어환경에서 차별화된 영상 콘텐츠를 만들기 위한 새로운 영상 기술을 도입되며 모션 그래픽은 영상콘텐츠에서 독특한 영상 효과와 메시지 전달을 위해 사용되고 있다. 본 연구는 디지털 영상의 집약 체라 할 수 있는 허리우드 영화 예고편에 나타난 타이틀 디자인의 모션 그래픽을 분석하였다. 다양한 영태의 편집과 독자적인 타이틀을 만들기 위해 모션 그래픽을 사용하여 독자들에게 좀 더 효과적으로 접근하기 위해 많은 제작비와 노력을 기울이고 있다. 본 연구는 2011년 11월-2012년 1월 사이에 소개된 예고편을 중심으로 영상과 타이포 그래픽의 움직임을 7개 모션으로 분석하여 모션의 다양한 방법이 장르에 따라 어떻게 나타나는지를 알아보고자 하였다. 또한 모션의 요인들을 분류하고 표현에 대한 효과를 분석을 6가지의 영역으로 분류하여 장르별 콘텐츠의 특성을 제시하였다.

• 한국인쇄학회지
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• 제28권1호
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• pp.51-63
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• 2010

Ink-jet is part of the non impact printing that shooting the ink drop from the nozzle to paper. It is very silence and express good color. There are two types of printing that continuous and drop on demand. But drop on demand process is becoming the mainstream. these days, LCD, PDP is passed more than semiconductor industry. And we expect organic EL, FED as a next display. But product equipment, main component and technology have a gap between an advanced country and us nevertheless physical development. Expecially, previous process part is depended on imports. Ink-jet printing technology that there isn't complicated photo lithography process is attracted, so ink-jet printing resolution is more embossed. But there were not many of ink-jet resolution thesis but ink-jet head or nozzle. Because, to out of the ink from the nozzle is unseeable and hard to experiment. Therefore this thesis was experimented and simulated how can ink-jet printer improved resolution by flow-3d simulation package program.

• 한국인쇄학회지
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• 제27권1호
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• pp.107-118
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• 2009

The printing industry is getting more digitalized and integration. It has enabled the interactive information and networking from Pre-Press, Press, to the Post-Press. These are efficient management and the improved process and productivity are getting more important. Such trends improved in the functionality and automation. This paper tries to find out how technology for CIP3/4-based process may be applied and resolved. Such subject includes the domestic and international cases regarding each manufacturer's CIP3/4 technology types. Another purpose is to emphasize on the needs to establish the environment. Under this environment, it is possible to integrate network in exchangeable form through JDF standard format after CIP3/4. Based on the data from this study, it is expected to collect further substantial data which is related to the domestic printing company's CIP4 operation. It will be also possible to perform subsequent studies on the proper variables of the market segment. CIP4 stands for "International Cooperation for Integration of Prepress, Press and Post-press, it is an association of around forty international companies, mostly manufacturers of prepress, press and post-press, as well as suppliers and users. In this paper, we studied on the acting application of CIP4 workflow.

• 한국인쇄학회지
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• 제30권1호
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• pp.1-19
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• 2012

According as gradually increasing the demand for eco-friendly at the printing process, it has been progressed fairly development. Especially, the inks are used by soy oil beginning of ink industry for preventing environment, it is possible to make eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents at all for preventing environment. These eco-friendly inks have a benefits they are able to use the renewable resource. But basically vegetable oils have that reduce the VOC(Volatile Organic Compound) and high viscosity, high solubility properties. So if the vegetable oils use in the ink, set off problem occur on the paper because of slow drying time. In case of vegetable ester, it has similar the molecular weight and kinetic viscosity with hydrocarbon solvent, it is able to control the power of dilution about the resin. So, it has benefit that solve the problem of the existing eco-friendly inks. In this study, different types of ester were made by six types of vegetable oils and used ester in the varnishes and inks properties are comparison with hydrocarbon solvent based ink. By considering the intrinsic properties of vegetable oil, ester used to analyze the changes in ink properties, using ester varnish is applied to study the rheology characteristics and emulsification with inks.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 26-27 Oct. 1990
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• pp.107-112
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• 1990

It is necessary to develop graphic MMI (Man-Machine Interface) for the maximum utilization of our installed ADS (Automated Distribution System) for which an operator types and executes string commands. Considering the restrictions and characteristics of the installed ADS and the data for modelled distribution lines, we calculated the time of periodic data acquisition for large number of points. And we presented the performance and characteristics of the graphic MMI system which will be developed and which will facilitate SCADA(Supervisory Control And Data Acquisition) functions.