• The Journal of the Korea Contents Association
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• v.15 no.8
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• pp.258-270
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• 2015

The study aims at verifying the effect of the image, trust and responsiveness to social welfare organizations on continuing the sponsorship of private donors, the mediating effect of the organizational identification and the moderating effect of their financial status. As a result of causal analysis of the variables by structural equation models, regardless of donors' financial status, social welfare organizations' image, trust and responsiveness has no direct effect on continuing the sponsorship. Among the donors in relatively good financial status, social welfare organizations' image, trust and responsiveness positively have direct effects on organizational identification, which has a direct effect on continuing the sponsorship. That is, the image, trust and responsiveness influence the continuity of the sponsorship through the full mediating effect of organizational identification. On the other hand, among relatively poor donors, only the organizations' image and trust positively influence the organizational identification, The direct and indirect effects on the continuity of the sponsorship are different according to the private donors' financial status, which means that the moderating effect of the donors' financial status is proved. The result of latent mean analysis regarding 5 main latent variables according to the private donors' financial status, shows the significant difference in the continuity of sponsorship only(Mean= .197, Cohen's D=.779). By emphasizing that Organizational identification is a critical factor in terms of enhancing the continuity of sponsorship, some practical implications are discussed based on the study's findings.

• Management & Information Systems Review
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• v.33 no.2
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• pp.281-299
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• 2014

This study using a transaction cost approach perspective, this paper presents a model for understanding shopper's buying behavior. Finally, based on the results of these studies, this paper suggests practical implications to companies establishing their management strategy of the channels. In order to achieve the research purpose, it derived hypotheses from the literature studies and conducted questionnaire survey for the buyer who actually purchased by distribution channels. In this paper, 876 of the samples has been used in practice and with those samples it analyzes its empirical testing through reliability verification, validation, factor analysis, correlation analysis and covariance structure analysis.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.78-79
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• 2018

최근 가짜뉴스가 무분별하게 확산되면서 가짜뉴스로 인한 경제적, 사회적 비용이 커지고 있다. 하루에 발생하는 가짜뉴스는 방대하며, 실제 뉴스기사를 악의적으로 재생산 또는 언론사를 사칭하는 방식으로 유포되고 있다. 이를 구분하기 위한 연구가 많으나, 공인된 뉴스 기사인지에 대한 신뢰성 입증과 관련된 연구 논문은 매우 적은 상황이다. 본 논문에서는 가짜뉴스 문제를 해결하기 위해 뉴스 플랫폼에 블록체인을 적용, 공인된 뉴스 제공자가 기사 내용에 대한 Fingerprint를 블록체인에 기록하여 공인된 기사 내용에 대한 신뢰성을 검증하는 방안에 대해 제안한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.4
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• pp.1307-1317
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• 2010

The various models that estimate the reliability of application software system had been made. But most of the existing models are inconvenient to industrial fields because so complicated mathematic methods as method of estimation parameter have been used. The two purposes of this paper are to develop the reliability estimation model which was easily applied to industrial fields, and to prove no differences between the existing models and the developed model. Therefore the reliability of software system and handled informations are upgraded by far.

• Journal of Internet Computing and Services
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• v.4 no.6
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• pp.25-31
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• 2003

Multistage Interconnection networks (MIN) for the high performance computing and communications must be efficient and reliable. While a number of fault tolerance schemes have been developed, some of them are not efficient enough with respect to all evaluation measures or overheads of others are too significant. In this paper we develop a new efficient fault tolerant MIN which displays high reliability and fault tolerance capability using a simple structure. Structure and reliabilities of Enhanced Cube Network are evaluated and compared with previous designs to show the effectiveness of new design.

• Annual Conference of KIPS
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• 2012.04a
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• pp.658-660
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• 2012

현재 전 세계의 스마트폰 사장은 아이폰과 안드로이드폰의 구도로 되어 있다고 해도 과언이 아니다. 아이폰의 앱 스토어에 어플리케이션을 올리기 위해서는 애플의 검증을 거쳐야 가능하지만, 안드로이드의 안드로이드마켓은 구글의 검증 없이 누구나 자유롭게 올릴 수 있다. 그렇기 때문에 스마트폰의 보안문제가 대두되고 있는 요즘, 안드로이드마켓에서 내려 받는 어플리케이션에 대한 신뢰성이 떨어지는 것이 사실이다. 본 논문에서는 이러한 안드로이드 어플라케이션의 신뢰성 검증을 위한 인증 어플리케이션을 제안함으로써 사용자가 악의적으로 변조된 어플리케이션에 대한 대응이 가능하도록 하고자 한다. 마지막으로 테스트를 통하여 본 연구의 효율성 및 타당성을 입증하였다.

• Journal of the Korean Society for Railway
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• v.7 no.2
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• pp.9-12
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• 2004

철도에서의 정보제어시스템은 열차무선망을 제외하고는 지금까지 유선전송망에 대부분 의존하고 있으며, 철도선로를 따라 대용량의 전용회선을 포설할 수 있다는 측면에서 효과적으로 설치가 가능하고, 안전성과 신뢰성의 측면에서도 우수성이 입증되었다. 그러나, 정보화가 진전됨에 따라, 여객서비스나 철도시스템 제어기능의 강화 측면에서 전송계통의 유연화와 정보교환개소의 확대가 요구되고 있으며, 유선전송으로는 이러한 요구에 충분히 대응할 수 없게 되었다. (중략)

• Water for future
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• v.21 no.4
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• pp.407-414
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• 1988

The purpose of this paper is to study the following ; (1) how the stability and sensitivity of a given stream water quality model can be analyzed theoretically by means of the stability theory and the sensitivity theory, and (2) point out that the results of this study prove that numerical analysis for the given stream water quality model is reliable, and the model is sensitive for the variations of parameters. A stability theory which is described by the infinite Fourier series is used to analyze the numerical scheme of the model. The numerical shheme is used a backward implicit scheme. a sensitivity theory which is described by the first order linear vector equation is used to analyze theoretically the effect of variations of water quality parameters such as BOD loads, flow rate, temperature. The results of sensitivity theory are of general applicability and are presented in a analytical form. The results of this study seems to be satisfactory for the reliability of stream water quality model with respect to the numerical scheme and the variations of the water quality parameters.

• Journal of Aerospace System Engineering
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• v.16 no.5
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• pp.94-101
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• 2022

In this paper, we have obtained the acceleration coefficient of the IMU (Inertial Measurement Unit) to prove reliability by analyzing the characteristic of the MEMS IMU installed in guided weapon systems for overseas export and the operating environment of the guided weapon system. Additionally, based on designed life testing, we performed life tests on three the IMUs and demonstrated a target lifetime of 12 years.

• Journal of the Korea Convergence Society
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• v.10 no.3
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• pp.59-65
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• 2019

In this paper, we propose a software quality measurement metrics of ISO / IEC 25023, which is newly proposed for software quality evaluation, to compare the difference with ISO / IEC 9126-2 which was used for software quality evaluation. In this paper, we propose a method for evaluating the quality of reliability based on the software reliability growth model among the eight quality characteristics presented in ISO / IEC 25023. Based on ISO / IEC 25023, software-quality evaluations demonstrate that there is some risk in evaluating reliability when based on data.