• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 추계학술대회 논문집 Vol.15
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• pp.206-209
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• 2002

The purpose of this research was to find influence of compounding materials on electrical properties of silicone rubber such as tracking characteristic. The tracking characteristic was tested through controlling the ATH, a widely use anti-tracking agent. Regarding the particle size and coupling agent of ATH, compound silicone rubber with ATH of coupling agent and larger diameter showed better anti-tracking properties. It can be included that ATH of coupling agent use vinyl silane, dispose of tracking characteristic was achieve excellant results.

• East Asian mathematical journal
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• 제38권3호
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• pp.293-319
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• 2022

In this paper, we introduce a higher order split least-squares characteristic mixed element scheme for Sobolev equations. First, we use a characteristic mixed element method to manipulate both convection term and time derivative term efficiently and obtain the system of equations in the primal unknown and the flux unknown. Second, we define a least-squares minimization problem and a least-squares characteristic mixed element scheme. Finally, we obtain a split least-squares characteristic mixed element scheme for the given problem whose system is uncoupled in the unknowns. We establish the convergence results for the primal unknown and the flux unknown with the second order in a time increment.

• 예술인문사회 융합 멀티미디어 논문지
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• 제6권12호
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• pp.605-619
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• 2016

본 연구는 최근 스마트폰을 활용한 모바일 광고로써 많은 관심을 받고 있는 리워드 어플리케이션은 어떠한 효과가 있는지 확인하고자 하였다. 따라서 모바일 광고인 리워드 어플리케이션을 사용하는 사용자 특성과 인구통계학적인 특성 그리고 리워드 어플리케이션 특성에 따라 이용만족과 지속적 이용의도에는 어떠한 차이가 있는지 확인하였다. 연구결과는 다음과 같다. 첫째, 리워드 어플리케이션사용자 성별과 적립금 사용 경험 유무에 따른 리워드 어플리케이션 이용만족에는 상호작용효과가 있음을 확인하였다. 둘째, 리워드 어플리케이션 사용자 유형과 사용자 성별에 따른 리워드 어플리케이션의 지속적 이용의도에는 상호작용효과가 있음을 확인하였다. 셋째, 리워드 어플리케이션 사용자 성별과 적립금 사용 경험 유무에 따른 리워드 어플리케이션의 지속적 이용의도에는 상호작용효과가 있는 것으로 확인되었다. 이상의 연구는 모바일 리워드 어플리케이션 활성화시키기 위한 마케팅 전략의 기초자료를 제공하였다는 것에 의의를 두고자 한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 추계종합학술대회
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• pp.999-1002
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• 2003

본 연구에서는 동작 검출 기법을 소형 화상 카메라에 적용하여 감시 영상을 실시간으로 검출하는 감시시스템을 구현하였다. 기존에 사용되던 차 영상의 화소 값을 이용한 동작 검출 기법은 배경 영상을 저장할 메모리가 필요하고 화소 단위의 데이터 처리로 인하여 수행 시간의 증가와 노이즈에 민감한 단점을 감수해야만 한다. 이러한 단점을 해결하고 노이즈에 강인한 성질을 갖게 하기 위해서 블록 단위로 특징값을 추출하여 비교하는 기법을 제안하였다. 블록별로 특징값을 얻는 경우 기준 영상의 블록 단위의 특징 값과 현재 영상의 블록 특징 값만을 비교하기 때문에 프레임 메모리가 필요없고 단지 기준 영상의 블록 특징 값만을 저장하면 된다. 또한 블록 단위로 특징 값을 구하는 과정에서 화소 값을 이용한 동작 검출 보다 노이즈에 대한 영향을 감소시키고 카메라의 흔들림 등에 덜 민감한 효과를 얻을 수 있었다.

• 한국정보통신학회논문지
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• 제8권1호
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• pp.74-79
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• 2004

본 연구에서는 동작 검출 기법을 소형 화상 카메라에 적용하여 감시 영상을 검출하는 감시시스템을 구현하였다. 기존에 사용되던 차 영상의 화소 값을 이용한 동작 검출 기법은 배경 영상을 저장할 메모리가 필요하고 화소 단위의 데이터 처리로 인하여 수행 시간의 증가와 노이즈에 민감한 단점을 감수해야만 한다. 이러한 단점을 해결하고 노이즈에 강인한 성질을 갖게 하기 위해서 블록 단위로 모션 정보를 추출하여 비교하는 기법을 제안하였다. 블록별로 모션 정보를 얻는 경우 기준 영상의 블럭 단위의 특징 값과 현재 영상의 블럭 특징 값만을 비교하기 때문에 프레임 메모리가 필요 없고 단지 기준 영상의 블럭 특징 값만을 저장하면 된다. 또한 블럭 단위로 특징 값을 구하는 과정에서 화소 값을 이용한 동작 검출 보다 노이즈에 대한 영향을 감소시키고 카메라의 흔들림 등에 덜 민감한 효과를 얻을 수 있다.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제52권4호
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• pp.153-158
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• 2003

This thesis deal with ferroelectric and ferromagnetic materials. PZT/Ferrite ceramics were made by the making process using PZT powder and garnet ferrite powder. PZT and ferrite are mixed as much 90%-10%, 50%-50%, and so on. After making samples, we are polishing samples until thickness is 0.1~0.2mm. We measured all kinds of samples in room temperature and applied magnetic field from -4500 to 4500 Oersted and conducted test of magnetical and electrical measurement using VSM and lpC resolution electrometer calibrated with RT66A pulsed tester. From this measurement, we can calculate tunability of these samples using C value obtained from P-E loop. As a result, it was able to measure magnetic characteristic when two matter had each other component ratio, and it was compound. However, it confirmed the possibility that was able to have ferroelectric characteristic with you in PZT 90% and ferrite 10%. Therefore, If this thing comes for PZT 50% and ferrite 50% have ferroelectric characteristic as him in a compound sample ore, can use this in an oscillator, supersonic waves detector in addition to a piezoelectric element. It may contribute to multipurpose of an element and demands such as a miniaturization of equipment, efficiency, reduce of a price which can use a characteristic of two components.

• 한국정보시스템학회지:정보시스템연구
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• 제31권3호
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• pp.131-152
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• 2022

Purpose The purpose of this study was to investigate the intention of using a news media platform using block chain through media company workers in a situation where various platform services using block chain are being newly released in the media industry. Therefore, in this paper, we intend to explore the development direction of the news media platform service using the block chain in the future by deriving implications through the characteristics of the block chain, user characteristics, and self-determination factors. Design/methodology/approach This study conducted a survey on the main characteristics of blockchain, user characteristics, self-determination, resistance to innovation, etc., and designed a research model by integrating factors on the continuity of intention to use the news media platform. Findings According to the empirical analysis result, in this study, it was confirmed that the intention to use the blockchain news media platform is significantly related to decentralization, which is a characteristic variable of the blockchain, perceived risk, which is a user characteristic variable, and competence and relationship, which is a self-determination variable. In addition, it was confirmed that it affects the perceived ease of use with respect to the intention to use. In addition, in this study, news writers write more careful articles as they cannot edit articles once written, which can contribute to improving the quality of news content.

• 복식문화연구
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• 제14권6호
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• pp.1042-1055
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• 2006

The purpose of this study is to consider the formative characteristics of dance sports from such points of view as shapes, colors, material and decorations, and to examine artistic characteristics that are expressed through those elements. As a result, this study shows five artistic characteristics as follows; First, rhythmic characteristic is expressed with repeat of lines that is formed by pleats, shirring or gather, with duplication of ruffle's wave, with gradation of colors, with Moire-effect that is generated with overlap of see-through material, with glossy material that reflects lights to a great extent, with fringe. Second, bodily characteristic emphasizes the beauty of human bodies through direct or indirect body exposure by way of cut-and-open, see-throughness or close adhesion. Third, decorative characteristic is shown with beads, fringe, ruffle, embroidery, shirring, binding, or feather. Fourth, the beauty of female body is manifested to express eroticism, which is culminated by body exposure, body consciousness, use of illuminating or see-through material or colorful trimming. Finally, elegant characteristic is revealed through feminity, sophistication, and harmony that are expressed with black and white colors, see-through material, or bead trimmings.

• Structural Engineering and Mechanics
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• 제28권2호
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• pp.167-188
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• 2008

This study is concerned with the establishment of the characteristic equation of a combined system consisting of a cantilever beam with a tip mass and an in-span visco-elastic helical spring-mass, considering the mass of the helical spring. After obtaining the "exact" characteristic equation of the combined system, by making use of a boundary value problem formulation, the characteristic equation is established via a transfer matrix method, as well. Further, the characteristic equation of a reduced system is obtained as a special case. Then, the characteristic equations are numerically solved for various combinations of the physical parameters. Further, comparison of the results with the massless spring case and the case in which the spring mass is partially considered, reveals the fact that neglecting or considering the mass of the spring partially can cause considerable errors for some combinations of the physical parameters of the system.

• 한국CDE학회논문집
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• 제8권4호
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• pp.262-269
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• 2003

An approach to compute characteristic curves such as section curves, reflection characteristic lines, and asymptotic curves on a surface is introduced. Each problem is formulated as a surface-plane inter-section problem. A single-valued function that represents the characteristics of a problem constructs a property surface on parametric space. Using a contouring algorithm, the property surface is intersected with a horizontal plane. The solution of the intersection yields a series of points which are mapped into object space to become characteristic curves. The approach proposed in this paper eliminates the use of traditional searching methods or non-linear differential equation solvers. Since the contouring algorithm has been known to be very robust and rapid, most of the problems are solved efficiently in realtime for the purpose of visualization. This approach can be extended to any geometric problem, if used with an appropriate formulation.