• 콘크리트학회논문집
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• 제17권6호
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• pp.1045-1051
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• 2005

For critical structures and application, where a given reliability must be met, it is necessary to account for uncertainties and variability in material properties, structural parameters affecting the corrosion process, in addition to the statistical and decision uncertainties. This paper presents an approach to the fuzzy arithmetic based modeling of the chloride-induced corrosion of reinforcement in concrete structures that takes into account the uncertainties in the physical models of chloride penetration into concrete and corrosion of steel reinforcement, as well as the uncertainties in the governing parameters, including concrete diffusivity, concrete cover depth, surface chloride concentration and critical chloride level for corrosion initiation. The parameters of the models are regarded as fuzzy numbers with proper membership function adapted to statistical data of the governing parameters and the fuzziness of the corrosion time is determined by the fuzzy arithmetic of interval arithmetic and extension principle

• 한국통신학회논문지
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• 제37A권12호
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• pp.1065-1075
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• 2012

For the purpose of providing high data rate real-time services, radio transmission technologies (RTT) for ship ad-hoc network (SANET) based on the Recommendation ITU-R 1842-1 are designed. Physical layer parameters of SANET are contrived to meet the requirements of the specification. In order to improve the link reliability for SANET, in this paper, we investigate the performance of the SANET with the multiple antennas, where receive combining (RC), transmit diversity (TD), and beamforming (BF) are employed, respectively. Based on the analysis of the packet error rate (PER) under the highly correlated maritime wireless channel model, we select the efficient multiple antenna schemes for SANET to improve the link reliability. In addition, the optimal MCS levels for the single-carrier (SC) SANET with the bandwidth of 25 kHz, and the multi-carrier (MC) SANET with the bandwidth of 50 kHz and 100 kHz are finalized.

• 한국정보시스템학회지:정보시스템연구
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• 제31권2호
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• pp.179-196
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• 2022

Purpose The purpose of this study is to examine what expectations and mediating factors are needed as variables necessary for the intention to use logistics hollowing out, and at the same time, what factors strengthen medical SCM competitiveness. In order to develop competitive competency variables for medical institutions that affect the intention to use logistics cavitation, we would like to examine the key success factors applying AHP model analysis. Design/methodology/approach For AMOS analysis, we conducted an online survey of four universities and analyzed 212 samples. The analysis method used SPSS, and AMOS. We proposed several factors categorized as reliability, SCM advance, and scalability. Findings The results showed that all proposed variables (competitive competencies for HSCM, expected performance) had a significant impact on intention of physical distribution cooperation. According to the measurement methods proposed in this study, key success factors for strengthening the capacity of HSCM can increase the need for physical distribution cooperation through expected performance.

• 한국조경학회지
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• 제30권2호
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• pp.39-49
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• 2002

The purpose of this study is to propose an objective and rational methodology for the selection of proposed sites far the National Trust(NT), which is the new alterative proposal far the conservation of natural environments destroyed by injudicious land development and economic growth. That is to enforce many analysis for the effective estimation of rare ecological and landscape resources and to propose a model based on estimation and united indicators. Using the estimative model, we apply it to the selection of the proposed site in micro scale and simultaneously offer the basic methodology of effective and systematic land conservation in macro scale. The results of this study are as follows: 1) The results of analysis for the reliability of estimative items and indicators, presented no problem in that the coefficient of reliability was over 0.7. 2) The correlation measure of the estimative indicator indicated that 'succession'and 'regenerating restorability' were highly correlative in the item of plants. Another three items showed a tendency to be alike. 3) The results of factor analysis on the characteristics of indicators, classified plants into four categories including a stable factor. The item of animals was classified as a stable and rare factor. The item of landscape was classified as a physical and mental factor and the environment as a pollutional and conditional factor. 4) The model of estimation created through factor analysis was valid for the approval of the regression model because significant probability was 0.00. When we consider the NT proposed site as a complex body that is composed of diverse natural and manmade resources, certainly the synthetic methodology of estimation is needed. If these studies are carried out, NT sites will be selected more rationally and effectively than at present. Consequently, they have the potential to play a core role of natural ecosystem conservation in Korea.

• 디지털융복합연구
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• 제14권6호
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• pp.477-487
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• 2016

이 연구는 방과 후 체육활동에 참여하는 초등학생들의 자아탄력성과 또래존재감 및 학교생활적응의 관계를 규명하는데 목적이 있다. 이러한 연구 목적을 달성하기 위한 연구대상은 경기도에 소재한 초등학교에서 방과 후 체육활동을 실시하는 4,5,6학년 초등학생을 대상으로 429명의 자료를 수집하였다. 수집된 자료는 SPSS 20.0 프로그램을 이용하여 설문지의 신뢰도와 타당도검사, 상관분석을 실시하였으며, 경로분석은 AMOS 20.0 프로그램을 이용하여 분석을 실시하였다. 이러한 과정을 통해 얻어진 결과는 다음과 같다. 첫째, 방과 후 체육활동에 참여하는 초등학생의 자아탄력성은 또래존재감에 정적인 영향을 미친다. 둘째, 방과 후 체육활동에 참여하는 초등학생의 또래존재감은 학교생활적응에 정적인 영향을 미친다. 셋째, 방과 후 체육활동에 참여하는 초등학생의 자아탄력성은 학교생활적응에 정적인 영향을 미친다. 넷째, 방과 후 체육활동에 참여하는 초등학생의 자아탄력성과 또래존재감 및 학교생활적응 간에는 인과적 관계가 있다.

• 한국프랜차이즈경영연구
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• 제12권1호
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• pp.45-55
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• 2021

Purpose: How to build the positive emotion of customer is very important, because it affects the positive attitude. Brand evidence has a significant impact on consumer behavior in terms of reinforcing consumers' perception of food service companies and differentiating them from competing brands. Thus, this study examines the effect of brand evidence on emotion (positive emotion and negative emotion), and attitude in restaurant industry. Research design, data, and methodology: This study examines the structural relationship among brand evidence, emotion, and attitude. Brand evidence divide into three sub-dimensions such as physical evidence, core service, and employee service. In order to test the purposes of this study, research model and hypotheses were developed. The questionnaire items were modified and used according to the content of this study based on previous studies. All constructs were measured by multiple items tested and developed in the previous research. The data were collected from 439 restaurant users from Seoul area were analyzed using SPSS 22.0 and SmartPLS 3.0 program. A total of 460 questionnaires were distributed and a survey was conducted for 4 weeks, and a total of 439 were used for analysis, excluding non-response data and 21 unusable response data among the collected questionnaires. Frequency analysis was conducted to identify the general characteristics of the survey subjects. To measure the reliability and validity of the measurement tools, confirmatory factor analysis was conducted. Structural model analysis was conducted to verify the research model. Result: The findings demonstrate that physical evidence, core service, employee service had positive effects on positive emotion. And core service and employee service had negative effects on negative emotion while physical evidence did not have. Also, positive emotion had positive effect on attitude and negative emotion had negative effect on attitude. Conclusions: The findings of this study provide guidelines on how to enhance competitiveness in restaurant industry through understanding brand evidence's effects on raising perceived consumer's emotion and attitude. Therefore, food service companies should establish a marketing strategy that can stimulate positive emotions through brand evidence, which is all factors related to service brands that influence consumers' evaluation of service products and purchase decision-making process.

• 한국조리학회지
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• 제17권4호
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• pp.104-120
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• 2011

베이커리 기업 광고에 대한 연구 부족과 확대되고 있는 프랜차이즈 형태의 베이커리 경영시스템에서 크리스마스 시즌 유명 연예인 광고모델을 기용한 스타마케팅 활동을 적극적으로 하고 있다. 본 연구의 목적은 베이커리의 크리스마스 광고에 대한 유명 연예인 광고 모델의 속성이 소비자가 인지하는 광고태도, 기업 명성, 기업 신뢰가 어떠한 영향관계가 있는지를 파악하여, 높은 광고비의 지불에도 불구하고 크리스마스 케이크의 판촉수단으로 활용되는 스타마케팅의 장기적인 효과를 실증분석 하고자 하였다. 이러한 검증 결과는 베이커리 산업에의 성공적인 경영 관리에 있어 매우 중요한 핵심요소라 판단되며, 베이커리 브랜드가 기능적 혹은 물리적인 면에서 차이가 없어지면서 브랜드 차별화의 어려움을 겪고 있는 현 시점에서 전략적 시사점을 제안하고자 한다. 본 연구모델의 결과 $x^2$=313.294(df=218, p<0.001)의 수준에서 GFI=.911, AGFI=0.887, NFI=0.935, CFl=0.979, RMR=.126으로 나타났다. 첫 째, 광고 모델 태도에서 모델신뢰성과 모델매력성은 광고 태도에 정(+)의 영향 관계가 있는 것으로 나타났다. 둘째, 광고태도는 기업 명성과 기업 신뢰에 정(+)의 영향 관계가 있는 것으로 나타났으며 셋째, 기업 명성 또한 기업 신뢰에 정(+)의 영향 관계가 있는 것으로 나타났다.

• Nuclear Engineering and Technology
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• 제45권5호
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• pp.653-664
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• 2013

The design of computer-based instrumentation and control (I&C) systems is determined by the allocation of I&C functions to I&C systems and components. Due to the characteristics of computer-based technology, component failures can negatively affect several I&C functions, so that the reliability proof of the I&C systems requires the accomplishment of I&C system design analyses throughout the I&C life-cycle. On one hand, this paper proposes the restructuring of the sequential IEC 61513 I&C life-cycle according to the V-model, so as to adequately integrate the concept of verification and validation. On the other hand, based on a metamodel for the modeling of I&C systems, this paper introduces a method for the modeling and analysis of the effects with respect to the superposition of failure combinations and event sequences on the I&C system design, i.e. the temporal change of physical structure is analyzed. In the first step, the method is concerned with the modeling of the I&C systems. In the second step, the method considers the analysis of temporal change of physical structure, which integrates the concepts of the diversity and defense-in-depth analysis, fault tree analysis, event tree analysis, and failure mode and effects analysis.

• 한국프랜차이즈경영연구
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• 제15권1호
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• pp.43-60
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• 2024

Purpose: According to previous studies, customer experience had a significant effect on consumer behaviors. In this perspective, this study investigates the structural relationship among customer experience, resort use satisfaction, and customer behavioral intentions, with focus on the mediating role of resort use satisfaction. Research design, data, and methodology: Data collected from 361 individuals who had experienced the resort service were analyzed using SPSS 29.0 and AMOS 29.0, involving frequency analysis, HTMT, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation model testing. Result: Firstly, cognitive, and relational experiences had significant effect on resort use satisfaction. Secondly, resort use satisfaction had significant effect on customer behavioral intentions. Thirdly, resort use satisfaction had partial mediating effects in the relationship between customer experiences and customer behavioral intentions. Conclusion: This study academically confirmed the empirical link between customer experience and consumer behaviors. From a practical standpoint, it suggests the necessity of marketing activities that enhance customers' perception of their experiences, as well as resort use satisfaction and customer behavioral intentions, through systematic CS education and management of the physical environment.

• 한국치위생학회지
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• 제12권4호
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• pp.675-684
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• 2012

Objectives : The purpose of this study was to develop an instrument for Korean Scaling Fear (KSF)-1.1 in scaling patients. Methods : 402 sample size for scaling patients was studied in Daegu city in July and August of 2011. Mean and standard deviation was calculated in 3 dimensions(FWS: fear while scaling, DDH: distrust on dental hygienist, FAS: fear after scaling). Results : Age of 402 subjects was 36.5 years. In analyzing reliability for item-level, a range of correlation coefficient(${\alpha}$) on item-internal consistency(FWS, DDH, and FAS) was 0.58~0.88(${\alpha}$=0.90), 0.40~0.71(${\alpha}$=0.82), and 0.54~0.63(${\alpha}$=0.82), respectively. Floor(%) and ceiling(%) value on 3 dimensions were also 9.2% and 4.0%, 12.4% and 0.5%, and 17.7% and 1.2%, respectively, therefore, we found statistically high reliability for those(p<0.001). With explanatory factor analysis, this study could generate 3 dimensions(factor 1, eigenvalue 5.41, proportion 0.49; factor 2, eigenvalue 1.50, proportion 0.14; factor 3, eigenvalue 1.04, proportion 0.09) and 11 sub-scales. Also confirmatory factor analysis results showed that the KSF1.1 model was fitted very well in analysis of model fit($x^2$=112.94, df=41, p=0.000; goodness of fit index=0.95; adjusted goodness of fit index=0.92; root mean square residual=0.057). Conclusions : In conclusion, The findings of this study showed that developed reliable and valid instrument for measuring the KSF1.1 in the scaling patients.