• Title/Summary/Keyword: structural measure

Search Result 1,160, Processing Time 0.028 seconds

Multi-level Mapping of Ontologies Based on Lexical and Structural Information (어휘와 구조 정보에 기반한 온톨로지의 다단계 매핑)

  • Hwang, Se-Chan;Kang, Sin-Jae
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.22 no.1
    • /
    • pp.42-48
    • /
    • 2012
  • Since the Semantic Web emerged, ontology has been widely used in web environment. Even ontologies belong to the same domain, they may contain same meaning different words, or different meaning same words according to their development background and the type of utilization. In order to share and reuse the ontologies, ontology mapping is required. This paper presents a ontology mapping method that consists of the initial process of multi-level mapping based on lexical information, and the second mapping process using the lexical results and structural similarity. Mapping performance was improved by additionally expanding structural information of blank nodes, which have no lexical information. Through experiments, our method achieved 86.38% in F1-measure.

Structural health monitoring using piezoceramic transducers as strain gauges and acoustic emission sensors simultaneously

  • Huo, Linsheng;Li, Xu;Chen, Dongdong;Li, Hongnan
    • Computers and Concrete
    • /
    • v.20 no.5
    • /
    • pp.595-603
    • /
    • 2017
  • Piezoceramic transducers have been widely used in the health monitoring of civil structures. However, in most cases, they are used as sensors either to measure strain or receive stress waves. This paper proposes a method of using piezoelectric transducers as strain gauges and acoustic emission (AE) sensors simultaneously. The signals received by piezoceramic transducers are decomposed into different frequency components for various analysis purposes. The low-frequency signals are used to measure strain, whereas the high-frequency signals are used as acoustic emission signal associated with local damage. The b-value theory is used to process the AE signal in piezoceramic transducers. The proposed method was applied in the bending failure experiments of two reinforced concrete beams to verify its feasibility. The results showed that the extracted low-frequency signals from the piezoceramic transducers had good agreement with that from the strain gauge, and the processed high-frequency signal from piezoceramic transducers as AE could indicate the local damage to concrete. The experimental results verified the feasibly of structural health monitoring using piezoceramic transducers as strain gauges and AE sensors simultaneously, which can advance their application in civil engineering.

Measuring the Service Quality, Perceived Value and Satisfaction in Namhaean Area Restaurants (남해안 지역 음식점들의 서비스 품질, 지각된 가치와 만족도의 평가)

  • Kang, Jong-Heon;Go, Beom-Seok
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.17 no.3
    • /
    • pp.417-424
    • /
    • 2007
  • The purpose of this study was to measure the effects that service quality, perceived value and satisfaction have on loyalty in Namhaean area restaurants. A total of 273 questionnaires were completed. The structural equation model was used as an analysis method to measure the causal effects of service quality, perceived value, satisfaction and loyalty. The results demonstrated that the structural analysis result for the data was an excellent model fit. The effect of service quality on value, the effect of perceived sacrifice on value, the effect of service quality on satisfaction, the effect of value on satisfaction, and the effect of satisfaction on loyalty were statistically significant. Moreover service quality had an indirect effect on satisfaction through perceived value, and service quality also had an indirect effect on loyalty through perceived value and satisfaction. Perceived value had an indirect effect on loyalty, and an effect through satisfaction. Perceived sacrifice had an indirect effect on satisfaction through perceived value, and it also had an indirect effect on loyalty, and an effect through satisfaction. Further study is still required, and should be aimed at identifying the causal mechanisms of constructs, such that restaurant managers might be better prepared to offer value and satisfaction to their customers.

  • PDF

The Effects of Attitude towards Fish Eating, Health Involvement, Perceived Convenience, and Age on Fish Consumption Behavior (생선 소비 행동에 미치는 섭취 태도, 건강 몰입, 지각된 편의성과 연령의 영향)

  • Kang, Jong-Heon;Ko, Beom-Seok
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.17 no.3
    • /
    • pp.304-311
    • /
    • 2007
  • The purpose of this study was to measure the causal relationships among fish consumption behavior, attitude towards fish eating, health involvement, perceived convenience, and age. A total of 235 questionnaires were completed. A structural equation model was used to measure the causal effects of the constructs. The results of the study demonstrated that the structural analysis results were an excellent model fit for the data. The influence of age on attitude towards fish eating, health involvement, and perceived convenience was statistically significant. As expected, attitude towards fish eating, health involvement, and perceived convenience had significant effects on fish consumption behavior. Moreover, age had a significant indirect effect on fish consumption behavior through health involvement. Age also had a significant indirect effect on fish consumption behavior through perceived convenience. By developing and testing conceptual models that integrate the relationships among age, psychological variables, and fish consumption behavior, this study may offer a deeper understanding of the complex relationships among the variables. A greater understanding of these complex relationships can improve the managerial diagnoses of problems and the opportunities for different marketing strategies, including product development and marketing communications.

  • PDF

A Study on the Causal Relationships among Consumer's Affective Belief, Environmental Belief, Subjective Norm, Attitude and Meat Consumption Behavior (소비자의 감정적 신념, 환경적 신념, 주관적 규범, 태도와 육류 소비행동의 인과관계에 관한 연구)

  • Kang, Jong-Heon;Jeong, Hang-Jin
    • Journal of the Korean Society of Food Culture
    • /
    • v.22 no.5
    • /
    • pp.582-589
    • /
    • 2007
  • The purpose of this study was to measure the causal relationships among affective belief, environmental belief, subjective norm, attitude and meat consumption behavior. A total of 318 questionnaires were completed. Structural equation model was used to measure the causal relationships among the constructs. Results of the study demonstrated that the structural analysis result for the data also indicated excellent model fit. The effects of affective belief, environmental belief and subjective norm on attitude were statistically significant. The effects of affective belief, environmental belief and subjective norm on meat consumption were statistically significant. As expected, attitude had a significant effects on behavioral intention. Moreover, attitude played a mediating role in the relationship between affective belief and meat consumption, environmental belief and meat consumption, subjective norm and meat consumption. Consumption played a mediating role in the relationship between attitude and behavioral intention. In conclusion, based on structural analysis, a model was proposed of interrelations among affective belief, environmental belief, subjective norm, attitude, meat consumption and intention. It should be noted that the original model was modified and should, preferably, be validated in future research. Other variables may be incorporated to form models that consist of new antecedent and consequence pairs.

Measuring the Effects of Mediating Variables on the Relationship between Restaurant Sonics Quality and Loyalty In Namhaean Area (남해안 지역 음식점의 서비스품질과 충성도의 관계에 영향을 미치는 매개변수의 효과 평가)

  • Ko, Beom-Seok;Kang, Jong-Heon
    • Journal of the Korean Society of Food Culture
    • /
    • v.22 no.3
    • /
    • pp.303-308
    • /
    • 2007
  • The purpose of this study was to measure the mediating effects of sacrifice, value and satisfaction on the relationship between restaurant service quality and loyalty. A total of 273 questionnaires were completed. Structural equation model was used to measure the causal effects of service quality, perceived sacrifice, value, satisfaction and loyalty. Results of the study demonstrated that the structural analysis result for the data also indicated excellent model fit. The influences of service quality and perceived sacrifice on value were statistically significant. The influences of service quality and value on satisfaction were statistically significant. The influences of value and satisfaction on loyalty were statistically significant. As expected, the service quality had a significant effect on loyalty. The results indicated that the effect of service quality on loyally was mediated by value. Moreover, the effect of service quality on loyalty w3s mediated by satisfaction.

Measuring the Mediated Effects of Attitude toward Fish Eating, Health Involvement and Convenience on the Relationship between Fish Consumption and Age (생선 소비와 연령의 관계에 미치는 생선 섭취태도, 건강몰입과 편의성의 매개효과 평가)

  • Ko, Beom-Seok;Kang, Jong-Heon
    • Journal of the Korean Society of Food Culture
    • /
    • v.22 no.3
    • /
    • pp.309-314
    • /
    • 2007
  • The purpose of this study was to measure the effects of attitude toward fish eating, Health involvement and convenience on the relationship between fish consumption and age. A total of 235 questionnaires were completed. Structural equation model was used to measure the causal relationships between constructs. Results of the study demonstrated that the structural equation analysis result for the data also indicated excellent model fit. The effects of age on involvement and convenience were statistically significant. The effects of age on attitude and consumption was not statistically significant. As expected, the involvement had a significant effect on attitude and consumption. The attitude and convenience had a significant effect on consumption. The effect of involvement on convenience was not statistically significant. Moreover, the attitude, involvement and convenience played a mediating role in the relationship between consumption and age. The involvement played a mediating role in the relationship between attitude and age. The involvement played no mediating role in the relationship between convenience and age. The attitude and convenience played no mediating role in the relationship between consumption and involvement.

Measuring the Effect of Disgust with Meat Mediating the Factors Influencing Meat Consumption (육류 소비에 영향을 미치는 요인들을 매개하는 육류 혐오감의 효과 평가)

  • Bae, Seong-Sik;Kang, Jong-Heon
    • Journal of the Korean Society of Food Culture
    • /
    • v.22 no.4
    • /
    • pp.414-419
    • /
    • 2007
  • The purpose of this study was to measure the effect of disgust with meat mediating the factors influencing meat consumption. Structural equation model was used to measure the causal relationships among constructs. The structural analysis Result of the data indicated excellent model fit. The effects of moral concerns for animals, meat texture and satiety from meat on disgust with meat were statistically significant. The effects of color in meat and negative body esteem on disgust with meat were not statistically significant. As expected, disgust with meat had a significant effect on meat consumption. Moreover, disgust with meat played a mediating role in the relationship between moral concerns for animals and meat consumption. Disgust with meat played a mediating role in the relationship between satiety from meat and meat consumption. Disgust with meat did not play a mediating role in the relationship between color in meat and meat consumption. Disgust with meat did not play a mediating role in the relationship between body esteem and meat consumption. In conclusion, based on structural analysis, a model was proposed of interrelations among constructs. It should be noted that the original model was modified and should, preferably, be validated in future research.

Literature Review of Structural Equation Models for Hospital Nurses' Turnover Intention in Korea (간호사 이직의도 구조모형에 관한 문헌고찰)

  • Kim, Eunhye;Kim, Jinhyun
    • Perspectives in Nursing Science
    • /
    • v.11 no.2
    • /
    • pp.109-122
    • /
    • 2014
  • Purpose: The purpose of this study was to review research papers on structural equation models for hospital nurses' turnover intentions, and to identify the factors that influence these intentions. Methods: Twenty-four research papers on structural equation models for hospital nurses' turnover intentions were identified for systematic review. Results: All 24 papers assessed nurses' turnover intentions in general hospitals and university hospitals. A total of 36 indicators and 105 items were used to measure turnover intention. Turnover intention was positively related with 10 variables, and negatively with 17 variables. Organizational commitment, job satisfaction, job stress, burnout, organizational culture, and empowerment were found to have significant direct and indirect effects on nurses' turnover intentions. Structural equation models in 23 of the 24 research papers showed high compatibility with the data. The models accounted for 20.1% 68.0% of total variances. Conclusion: The study findings show recent trends in nurses' turnover intentions, and indicate directions for future research.

SHM by DOFS in civil engineering: a review

  • Rodriguez, Gerardo;Casas, Joan R.;Villalba, Sergi
    • Structural Monitoring and Maintenance
    • /
    • v.2 no.4
    • /
    • pp.357-382
    • /
    • 2015
  • This paper provides an overview of the use of different Distributed Optical Fiber Sensor systems (DOFSs) to perform Structural Health Monitoring (SHM) in the specific case of civil engineering structures. Nowadays, there are several methods available for extracting distributed measurements from optical fiber, and their use have to be according with the aims of the SHM performance. The continuous-in-space data is the common advantage of the different DOFSs over other conventional health monitoring systems and, depending on the particular characteristics of each DOFS, a global and/or local health structural evaluation is possible with different accuracy. Firstly, the fundamentals of different DOFSs and their principal advantages and disadvantages are presented. Then, laboratory and field tests using different DOFSs systems to measure strain in structural elements and civil structures are presented and discussed. Finally, based on the current applications, conclusions and future trends of DOFSs in SHM in civil structures are proposed.