• Title/Summary/Keyword: Continuous analysis

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A Study on Experimental Analysis of Semi-Continuous Settling Tank using Characteristics of Solid Sedimentation in the Binary $CaCO_3$-Water Slurry (탄산칼슘-물 이성분계 슬러리의 침강 특성을 이용한 반연속식 침전탑의 실험적 해석에 관한 연구)

  • 안원술;노승백;김정배;박상원;최창균
    • Journal of Environmental Science International
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    • v.7 no.5
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    • pp.659-667
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    • 1998
  • In the present paper, batch and semi-continuous settling characteristics of a binary calcium carbonate-water system were investigated. Using experimental data of batch settling characteristics, a graphical analysis for a semi-continuous thickening column was developed and compared with experimental results on the basis of Kynch theory, only where the feed velocity line was within the limits of Kynch theorem III. The analysis showed good agreement with experiments. Quite erroneous results, however, was observed for the analysis of a sludge region on the underloaded operation, which was considered due to the deviation from the limits of theory.

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The Effect of Chatbot Service Quality on Customer Satisfaction and Continuous Use Intention (챗봇 서비스품질이 고객만족과 지속사용의도에 미치는 영향)

  • Min Jeong KIM
    • Journal of Korea Artificial Intelligence Association
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    • v.2 no.1
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    • pp.15-24
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    • 2024
  • This study is about the effect of chatbot service quality on customer satisfaction and continuous use intention. Data collection was conducted for 13 days from October 23 to November 5, 2023, and a survey was conducted on customers who have used chatbot services. A total of 572 questionnaires were targeted, of which 545 valid data were used for analysis, excluding those that responded insincerely or did not meet the purpose of the study. The analysis results of this study are as follows: First, chatbot service quality partially had a significant effect on satisfaction. Second, customer satisfaction had a significant effect on continuous use intention. Therefore, in order to have a positive impact on continuous use intention, it is necessary to focus on marketing strategies related to chatbot service quality. Also, research focusing on data analysis and performance evaluation is crucial for enhancing chatbot services, necessitating studies that address real-time changes. Through sophisticated data analysis and variable measurement, chatbot services can be effectively improved, leading to enhanced customer satisfaction.

A Study on Factors Affecting Vender's Continuous Use Intention in O2O Delivery App Platform Service (O2O 배달 앱 플랫폼 서비스에서 공급 업체의 지속이용의도에 영향을 미치는 요인에 관한 연구)

  • Lee, Jae Kwang;Choi, Youngwoo;Lim, Eunju;Kim, Yoomin;Ahan, Saerom;Kim, Minjeong
    • Journal of Information Technology Services
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    • v.20 no.2
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    • pp.13-31
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    • 2021
  • Recently, delivery app services based on the O2O platform are increasing rapidly. Accordingly, various studies on O2O service have been conducted. Most of the studies are on consumer behavior in O2O services, and few studies on platform vendors have been conducted. Therefore, this study empirically analyzed the factors affecting the vender's intention to continuous use in the O2O delivery app platform service. Based on prior researches, we set the quality characteristics and network characteristics of the O2O platform as independent variables. The quality characteristics of the O2O platform consisted of system quality, information quality, and service quality, and the O2O platform network characteristics consisted of network externality and platform reputation. Perceived value and switching cost were set as mediated variables, and vender's intention to continuous use was set as dependent variables. For empirical analysis, we conducted a survey targeting vendors of O2O delivery app platform service, and conducted frequency analysis, factor analysis, reliability analysis, and regression analysis. As a result of the analysis, the quality characteristics of the O2O platform, such as system quality, information quality, service quality, and O2O platform network characteristics, showed that network externality and platform reputation had a positive effect on perceived value. The perceived value was found to have a positive effect on the switching cost and the intention to continuous use, and the switching cost was found to mediate the perceived value and the intention to continuous use. This study can contribute to the establishment of platform operation strategy as an empirical analysis on the factors that influence the intention of O2O platform vendors to use the platform continuously.

Moment redistribution of continuous composite I-girder with high strength steel

  • Joo, Hyun Sung;Moon, Jiho;Sung, Ik-Hyun;Lee, Hak-Eun
    • Steel and Composite Structures
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    • v.18 no.4
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    • pp.873-887
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    • 2015
  • The continuous composite I-girder should have a sufficient rotation capacity (or ductility) to redistribute the negative bending moment into an adjacent positive bending moment region. However, it is generally known that the ductility of the high strength steel is smaller than that of conventional steel, and application of high strength steel can cause ductility problems in a negative moment region of the I-girder. In this study, moment redistribution of the continuous composite I-girder with high strength steel was studied, where high strength steel with yield stress of 690 MPa was considered (the ultimate stress of the steel was 800 MPa). The available and required rotation capacity of the continuous composite I-girder with high strength steel was firstly derived based on the stress-strain curve of high strength steel and plastic analysis, respectively. A large scale test and a series of non-linear finite element analysis for the continuous composite I-girder with high strength steel were then conducted to examine the effectiveness of proposed models and to investigate the effect of high strength steel on the inelastic behavior of the negative bending moment region of the continuous composite I-girder with high strength steel. Finally, it can be found that the proposed equations provided good estimation of the requited and available rotation capacity of the continuous composite I-girder with high strength steel.

Effect of Perceived Value of OTT Platform on Consumer's Technology Acceptance, Continuous Use Intention, and WOM

  • Byoung-Jo HWANG;Hee-Young CHO
    • The Journal of Economics, Marketing and Management
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    • v.11 no.5
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    • pp.29-44
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    • 2023
  • Purpose: This study analyzed the effect of the perceived value of the OTT platform on consumers' technology acceptance, continuous use intention, and WOM using the Expanded TAM. Research design, data and methodology: A survey was conducted targeting OTT platform users in their 20s to 40s nationwide from August 10 to 16, 2022, and a total of 208 people were used in the final analysis. To verify the research model, frequency analysis, CFA, and SEM analysis were performed using SPSS and AMOS. Results: First, the perceived value of the OTT platform was found to have a positive effect on consumers' technology acceptance (perceived usefulness, perceived ease of use, and perceived enjoyment). Second, the perceived ease of use of OTT platform consumers was found to have a positive effect on perceived usefulness and perceived enjoyment. Third, it was found that the perceived usefulness and perceived enjoyment of OTT platform consumers had a positive effect on the continuous use intention, and WOM. Fourth, it was found that the continuous use intention the OTT platform had a positive effect on the WOM. Conclusions: Word of mouth and continuous use of existing customers are important for OTT platform companies to retain existing customers and secure new customers. Through the perceived value of the OTT platform, efforts should be made to provide various contents that consumers can enjoy along with usefulness and convenience of functions.

A comparative analysis of the 2009-revised curriculum and 2015-revised curriculum on the definition and introduction of continuous probability distribution (연속확률분포의 정의와 도입 방법에 대한 2009개정 교육과정과 2015개정 교육과정의 비교 분석 연구)

  • Heo, Nam Gu
    • The Mathematical Education
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    • v.58 no.4
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    • pp.531-543
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    • 2019
  • Continuous probability distribution was one of the mathematics concept that students had difficulty. This study analyzed the definition and introduction of the continuous probability distribution under the 2009-revised curriculum and 2015-revised curriculum. In this study, the following subjects were studied. Firstly, definitions of continuous probability variable in 'Probability and Statistics' textbook developed under the 2009-revised curriculum and 2015-revised curriculum were analyzed. Secondly, introductions of continuous probability distribution in 'Probability and Statistics' textbook developed under the 2009-revised curriculum and 2015-revised curriculum were analyzed. The results of this study were as follows. First, 8 textbooks under the 2009-revised curriculum defined the continuous probability variable as probability variable with all the real values within a range or an interval. And 1 textbook under the 2009-revised curriculum defined the continuous probability variable as probability variable when the set of its value is uncountable. But all textbooks under the 2015-revised curriculum defined the continuous probability variable as probability variable with all the real values within a range. Second, 4 textbooks under the 2009-revised curriculum and 4 textbooks under 2015-revised curriculum introduced a continuous random distribution using an uniformly distribution. And 5 textbooks under the 2009-revised curriculum and 5 textbooks under the 2015-revised curriculum introduced a continuous random distribution using a relative frequency density.

Effects of the Components of Mobile Shopping Apps On Shopping Flow and Continuous Usage Intention

  • Sangwoon BYUN;Jai-Kil KO
    • The Journal of Industrial Distribution & Business
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    • v.14 no.12
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    • pp.11-21
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    • 2023
  • Purpose: This study aims to investigate the impact of mobile shopping app components on shopping flow and the continuous usage intention of the shopping apps in the rapidly growing mobile market facilitated by advancements in the mobile environment. Research Methodology: A survey was conducted, targeting users aged 20 and older with experience in using mobile shopping apps. The responses of 456 participants were analyzed through frequency analysis, exploratory factor analysis, reliability analysis, confirmatory factor analysis, and structural equation modeling. Results: The study found that within the components of mobile shopping apps, enjoyment significantly impacted both shopping flow and the continuous usage intention of shopping apps. The diversity of product assortment had a significant effect only on shopping flow. The usefulness and ease of use influenced on the intention to continue using shopping apps. Conclusions: Based on the findings, it is recommended that shopping app operators try to identify essential components for stimulating user interest and engagement when developing or modifying apps. Additionally, a diverse range of products enhances the shopping experience and drives spontaneous purchases. Furthermore, providing an easy interface and minimizing the effort required, this experience can enhance user perception of its value and sustain consumers' continuous usage intention of the shopping app.

Incomplete Cholesky Decomposition based Kernel Cross Modal Factor Analysis for Audiovisual Continuous Dimensional Emotion Recognition

  • Li, Xia;Lu, Guanming;Yan, Jingjie;Li, Haibo;Zhang, Zhengyan;Sun, Ning;Xie, Shipeng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.2
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    • pp.810-831
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    • 2019
  • Recently, continuous dimensional emotion recognition from audiovisual clues has attracted increasing attention in both theory and in practice. The large amount of data involved in the recognition processing decreases the efficiency of most bimodal information fusion algorithms. A novel algorithm, namely the incomplete Cholesky decomposition based kernel cross factor analysis (ICDKCFA), is presented and employed for continuous dimensional audiovisual emotion recognition, in this paper. After the ICDKCFA feature transformation, two basic fusion strategies, namely feature-level fusion and decision-level fusion, are explored to combine the transformed visual and audio features for emotion recognition. Finally, extensive experiments are conducted to evaluate the ICDKCFA approach on the AVEC 2016 Multimodal Affect Recognition Sub-Challenge dataset. The experimental results show that the ICDKCFA method has a higher speed than the original kernel cross factor analysis with the comparable performance. Moreover, the ICDKCFA method achieves a better performance than other common information fusion methods, such as the Canonical correlation analysis, kernel canonical correlation analysis and cross-modal factor analysis based fusion methods.

Internet Personal Broadcasting Service Quality Impact on Continuous Use Intention : Focused on YouTube (1인 미디어 서비스품질이 사용자 만족과 지속사용의도에 미치는 영향 : YouTube를 중심으로)

  • Lee, Youn Sun;Suh, Chang Juck;Lee, Hay Jung
    • Journal of Information Technology Services
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    • v.18 no.5
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    • pp.99-117
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    • 2019
  • In recent years, the one-person media has increasingly gained popularity. The purpose of this study is to investigate the relationship among the service quality, satisfaction and intention of continuous use of one-person media service and to further examine the mediating effect of satisfaction operating on the relationship between the service quality and intention of continuous use. Based on the literature review, hypotheses were developed and the research model was built for testing. The sample of 358 users was selected to achieve these objectives. From the analysis of PLS(Partial Lease Square Path Analysis), key research findings are summarized as follows. First, relationships among the service quality, satisfaction, and intention of continuous use were all positively correlated each other. Second, the effect of service quality on intention of continuous use was mediated by satisfaction. Third, the content quality of one-person media has the higher effectiveness than platform quality to satisfaction and intention of continuous use. Results of this paper are expected not only to emphasize the importance of satisfaction based on the service quality, but also to provide multifaceted implications and directions for the management of one-person media service effectively.

Design of Continuous Sterilizer for Retort Pouch (레토르트용 연속 살균기의 개발)

  • Park, Cheol-Jae
    • Journal of Power System Engineering
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    • v.19 no.2
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    • pp.57-63
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    • 2015
  • In this paper, we developed a continuous sterilizer in order to improve the productivity of the retort product. To this end, we design the sterilizer with a product inlet, outlet, and chain for continuously conveying the retort. The temperature analysis is performed to optimize the design parameters of the internal sterilizer. The experimental apparatus is developed to verify the productivity of the sterilizer based on the temperature analysis. The test is performed to optimize the evaluation parameters using Box-Behnken design method of a response surface methodology. From the test, the productivity of the continuous sterilizer is improved over 1,000 kg/h.