• Title/Summary/Keyword: effective component

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Analysis of fMRI Signal Using Independent Component Analysis (Independent Component Analysis를 이용한 fMRI신호 분석)

  • 문찬홍;나동규;박현욱;유재욱;이은정;변홍식
    • Investigative Magnetic Resonance Imaging
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    • v.3 no.2
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    • pp.188-195
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    • 1999
  • The fMRI signals are composed of many various signals. It is very difficult to find the accurate parameter for the model of fMRI signal containing only neural activity, though we may estimating the signal patterns by the modeling of several signal components. Besides the nose by the physiologic motion, the motion of object and noise of MR instruments make it more difficult to analyze signals of fMRI. Therefore, it is not easy to select an accurate reference data that can accurately reflect neural activity, and the method of an analysis of various signal patterns containing the information of neural activity is an issue of the post-processing methods for fMRI. In the present study, fMRI data was analyzed with the Independent Component Analysis(ICA) method that doesn't need a priori-knowledge or reference data. ICA can be more effective over the analytic method using cross-correlation analysis and can separate the signal patterns of the signals with delayed response or motion related components. The Principal component Analysis (PCA) threshold, wavelet spatial filtering and analysis of a part of whole images can be used for the reduction of the freedom of data before ICA analysis, and these preceding analyses may be useful for a more effective analysis. As a result, ICA method will be effective for the degree of freedom of the data.

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A Component Transformation Technique based on Model for Composition of EJB and COM+ (EJB와 COM+ 결합을 위한 모델기반 컴포넌트 변환 기법)

  • 최일우;신정은;류성열
    • Journal of KIISE:Software and Applications
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    • v.30 no.12
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    • pp.1172-1184
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    • 2003
  • At present, new techniques based on different component reference models for the integration of component and system of different platforms, such as EJB and COM+, are introduced. The operation between the components in the identical component platform is realized by the composition at the source level. In case of the different component platform, however, it is impossible to use combined components in real condition although they are components of similar domain. In this paper we proposed a solution for the composition problem by using component transformation methodology based on model between EJB and COM+ components which are different components. For the composition between EJB and COM+ components, we compared and analyzed each reference model, then proposed the Virtual Component Model which is implementation independent and the Implementation Table for the mutual conversion. Reffering to the Virtual Component Model and the Implementation Table, we can generalize each Implementation model to the Virtual Component Model, make the Virtual Component Model which is implementation independent through the virtual component modeling, transform EJB and COM+ components selectively. Proposing the effective Model Transformation method to the different component platform, we can combine EJB and COM+ components.

Advertising Effect of Wedding Internet Advertisement Types -Static, Pop-Up, & Flash Banners- (웨딩드레스 인터넷 광고유형에 따른 광고효과 -고정배너형, 팝업형, 플래쉬형 배너광고를 중심으로-)

  • Lee Seung-Hee;Chung Soyeon
    • Journal of the Korean Home Economics Association
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    • v.43 no.1 s.203
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    • pp.243-253
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    • 2005
  • The purpose of this study was to examine the advertising effects of wedding internet advertisement types such as Static, pop-up, and flash banners. The survey subjects were 604 unmarried female consumers, consisting 202 in the static banner group, 201 in the pop-up banner group, and 201 in the flash banner group. Descriptive statistics, ANOVA, and Duncan test were used for data analysis. In the results, regarding the attitude toward advertisement, pop-up banner was the most effective on the cognitive component, while static banner was the most effective on the behavioral component. Regarding the attitude toward brand, pop­up and flash banner advertisements were more effective than static banner. However, there were no significant differences between the 3 groups in purchasing intention. Based on these results, strategies for wedding dress internet advertisement were suggested.

A Study on the Fundamental Properties of Single-Component Sealant in Domestic Production (국내산 1성분계 실링재의 기초적 특성 분석에 관한 연구)

  • Sin, Se-Jun;Choi, Yoon-Ho;Lee, Young-Jun;Hyun, Seung-Yong;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.188-189
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    • 2019
  • In this study, the characteristics of single-component and other sealant were analyzed to provide repair methods and effective utilization of sealant due to crack generation. Humidity studies have shown that acrylic silicone is effective in many areas of fluidity and temperature change, and that polysulfide-silicon is most effective in resistance to linear expansion coefficient and external pressure. Therefore, the difference between drying shrinkage and thermal expansion coefficient between various building materials and sealant, as well as the use of sealant, is analyzed, and construction methods derived accordingly, and prevention of defects are considered to be part of the construction project.

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STUDIES ON THE ANTI-OXIDANT COMPONENTS OF KOREAN GINSENG

  • Han Byung Hoon;Park Myung Hwan;Woo Lin Keun;Woo Won Sick;Han Yong Nam
    • Proceedings of the Ginseng society Conference
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    • 1978.09a
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    • pp.13-17
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    • 1978
  • This paper is concerned with the studies on the effective components of anti-oxidant activity, with a view to demonstrate the anti-aging activity of Korean ginseng. Feeding the extract of Korean ginseng or its effective component to mice inhibited strongly the induction of lipid peroxidation produced by ethanol intoxication. From the extract of Korean red ginseng, one effective component Compound A, mp.143, $C_6H_6O_3$ was isolated by chromatographic purification and its chemical structure was determined as 2-meth-y1-3-hydroxy-${\gamma}-pyrone(maltol).$

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The Effects of Cobalt Addition on Sliding Wear Properties of Multi-component White Cast Iron (다합금 백주철의 미끄럼 마모특성에 미치는 코발트 첨가의 영향)

  • Lee, Han-Young
    • Journal of Korea Foundry Society
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    • v.24 no.4
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    • pp.202-208
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    • 2004
  • Effects of Co addition on sliding wear properties of multi-component white cast iron were investigated. The microstructures of multi-component white cast iron containing from 0%Co to 10%Co exhibited little difference. However, the hardness increased with an increase of the Co content. Increasing the Co content, wear properties were improved and the iron oxide on worn surface was increased in the low sliding speed range of the steady-state wear region. Hence, Co addition was effective to improve the wear properties of multi-component white cast iron by accelerating the corrosive wear as well as the enhancement effect of hardness.

Characteristics of Paper making fiber with Synergism and Combined effect of Purified two major Cellulase Components Treatment (I. The effects of Cx components contents) (정제된 Cellulase 구성요소간 상승작용이 펄프섬유의 특성에 미치는 영향 (제1부 Cx 구성요소비에 의한 변화))

  • 김병현;신종순
    • Journal of the Korean Graphic Arts Communication Society
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    • v.16 no.3
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    • pp.157-170
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    • 1998
  • To investigate the most effective way of cellulase utilization on paper making process and the systematic way of how to combine its components for better use, purified two major cellulase were applied to bleached kraft pulp at various dosage in the refining process and estimated the synergism effect of each components in the characteristics of papermaking fiber. freeness was not changed by $C_1$ Component dosage but strongly increased by Cx Component dosage. Drop in fiber viscosity, increase in WQV, fiber shortening and fine generation was strongly influenced by Cx Component, it seems to be that Cx Component works a hydrogenate that breaks hydrogen bonding in fiber and enhances pooling effect of fiber. $C_1$ Component was little influenced these characteristics of fiber but considered to help to make fiber surface smooth.

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Effective Component Model Design for Framework (프레임웍을 위한 효율적인 컴포넌트 모델 설계)

  • Lim, Keun
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.5
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    • pp.113-119
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    • 2007
  • Framework has constructive and extendable code. It is consist of the variable design collections. In the aspect of the classes's collection, it is similar to the class library. but it is different to provide the architecture which is possible to develop the application rather than the collection of the simple classes. In framework it is very important factor to develop and control the component library. In this paper, we design the usable component model through defining the meta-relation between components and proposed the sample case using this model.

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Component-based Partner Management System Architecture on .NET Environment (닷넷 환경에서의 컴포넌트 기반의 파트너 관리 시스템 아키텍처)

  • Bae, Sung-Moon;Lee, Sang-Cheon;Choi, Jeong-Tae
    • IE interfaces
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    • v.16 no.spc
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    • pp.127-131
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    • 2003
  • Component-based development approach is used in modern software system development projects that are very complex and large-scale. Technical components are more effective rather than business components in software development. However, on the Microsoft .net environment, the technical component-based development issues are not adopted. Moreover, software architecture on the .net environment is not studied yet because the development platform is recently used in the development of enterprise-level system. This paper proposes a technical component-based software architecture on .net environment. Seven technical components - configuration, data access, exception, file I/O, log, message, and paging - are contained in the architecture. The proposed architecture enables developers to reduce development time and to concentrate business logic rather than architectural issues. To verify the proposed architecture and the components, a partner management system is developed based on the architecture.

Compound Explosives Detection and Component Analysis via Terahertz Time-Domain Spectroscopy

  • Choi, Jindoo;Ryu, Sung Yoon;Kwon, Won Sik;Kim, Kyung-Soo;Kim, Soohyun
    • Journal of the Optical Society of Korea
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    • v.17 no.5
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    • pp.454-460
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    • 2013
  • We present qualitative and quantitative component analyses on compound explosives via Terahertz time-domain spectroscopy (THz-TDS) based on a combination of wavelet thresholding and wavelength selection. Despite its importance, the field of signal processing of THz signals of compound plastic explosives is relatively unexplored. In this paper, experiment results from explosives Composition B-3 and Pentolite are newly presented, suggesting a novel signal processing procedure for in situ compound explosives detection. The proposed signal processing method demonstrates effective component analysis even in noisy and humid environments, showing significant decrease in component concentration percentage error of approximately 22.7% for Composition B-3 and 48.8% for Pentolite.