• Title/Summary/Keyword: Level of Reliability

Search Result 3,190, Processing Time 0.033 seconds

The Effect of General Exercise Enthusiast on Exercise Addiction through Basic Psychological Need (일반운동애호가들의 기본심리욕구가 운동중독에 미치는 영향)

  • Lee, Seung-Do;Kim, Young-Hun
    • Journal of Korea Entertainment Industry Association
    • /
    • v.14 no.4
    • /
    • pp.251-264
    • /
    • 2020
  • The purpose of this study was to examine the differences and the relationship between basic psychological needs and exercise addiction and to identify effects of To do this, the data were collected using the self-evaluating questionnaires on the exercise addiction, the of basic psychological needs, and the subjective were distributed to 305 participants in general exercise enthusiast for all, and the collected data. This study used the SPSS Statistics 18.0 program to process data. Exploratory factor analysis was performed for validity and Cronbach's α was performed for reliability. In addition, Frequency Analysis was carried out to analyze the demographic characteristics and Pearson's Correlation Analysis, independent t-test, one-way ANOVA, correlation analysis, multiple regression analysis Analysis were performed to verify the correlations and differences among variables. The significance level in this research was set at=.05 and the followings α are derived outcomes. The following is the comprehensive finding of the effect of general exercise enthusiast exercise addiction through basic psychological needs. First, there was no significant difference in basic psychological need and Exercise Addiction of general characteristics, but participation in 6 days was the highest in exercise amount per week. Second, Basic Psychological Need(autonomy, competition, relatedness) showed a high difference in Exercise Addiction(withdrawal symptoms, exercise need, emotional attachment). Third, correlation analysis between all variables showed statistically significant difference. Fourth, Basic Psychological Need(autonomy, competition) was found to have a high effect on Exercise Addiction(withdrawal symptoms, exercise need, emotional attachment).

Establish for Link Travel Time Distribution Estimation Model Using Fuzzy (퍼지추론을 이용한 링크통행시간 분포비율 추정모형 구축)

  • Lee, Young Woo
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.26 no.2D
    • /
    • pp.233-239
    • /
    • 2006
  • Most research for until at now link travel time were research for mean link travel time calculate or estimate which uses the average of the individual vehicle. however, the link travel time distribution is divided caused by with the impact factor which is various traffic condition, signal operation condition and the road conditional etc. preceding study result for link travel time distribution characteristic showed that the patterns of going through traffic were divided up to 2 in the link travel times. therefore, it will be more accurate to divide up the link travel time into the one involving delay and the other without delay, rather than using the average link travel time in terms of assessing the traffic situation. this study is it analyzed transit hour distribution characteristic and a cause using examine to the variables which give an effect at link travel time distribute using simulation program and determinate link travel time distribute ratio estimation model. to assess the distribution of the link travel times, this research develops the regression model and the fuzzy model. the variables that have high level of correlations in both estimation models are the rest time of green ball and the delay vehicles. these variables were used to construct the methods in the estimation models. The comparison of the two estimation models-fuzzy and regression model- showed that fuzzy model out-competed the regression model in terms of reliability and applicability.

Effects of Health Belief on Exercise Adherence among college Students in China -Mediating Effect of Planning behavior and action control- (중국 대학생의 건강 신념이 운동지속성에 미치는 영향 -계획 행동과 행동 제어의 매개효과-)

  • Li Qiuying;Cho, Mi Young
    • The Journal of the Convergence on Culture Technology
    • /
    • v.10 no.3
    • /
    • pp.769-782
    • /
    • 2024
  • The purpose of this study analyzes by confirming the structural relationship between the four variables of Chinese college students' health beliefs, planned behavior, behavioral control, and exercise persistence, this study can establish measures to enhance and improve college students' health beliefs and planned behavior and improve behavioral control. The purpose is to provide basic data to improve the level of continued exercise among college students. The EBI study verified reliability and validity through a preliminary survey targeting 380 people. This survey distributed questionnaires to college students at 52 universities from May 12 to July 21, 2023, and a total of 5,109 copies were finally selected and analyzed, excluding invalid questionnaires. As a result of the study, first, the structural relationship between variables showed that health beliefs had a positive effect on planning behavior, behavioral control, and exercise persistence. Second, planning behavior was found to have a positive effect on behavioral control and motor persistence. Third, behavioral control was found to have a positive effect on exercise persistence. Fourth, planning behavior and behavioral control were found to play a positive mediating role in the relationship between health beliefs and exercise persistence. Therefore, to improve college students' health beliefs, schools should open a health psychology curriculum. Furthermore, there is a need to strengthen college students' beliefs about their health by developing and distributing customized health education programs for college students.

Antecedents and Consequence of Job Engagement: Focused on Food & Beverage Departments at Super Deluxe Hotels in Seoul (직무열의의 선행요인 및 결과변수에 관한 연구: 서울소재 특 1급 호텔 식음료 부서를 중심으로)

  • Kwon, Young-Guk;Yoon, Hye-Hyun
    • Culinary science and hospitality research
    • /
    • v.21 no.3
    • /
    • pp.212-231
    • /
    • 2015
  • This study aims to understand the relationships between antecedents (recognition, empowerment, fair rewards, procedural justice(PJ), perceived organizational support(POS) and consequence(turnover intention(TI) of job engagement in a super deluxe hotel's F&B departments. Based on a total of 402 useful samples obtained for the empirical research, this study reviewed reliability and fitness of the research model and verified total 6 hypotheses with through the use of the AMOS statistical program. The hypothesized relationships in the model were tested simultaneously by using a structural equation model(SEM). The proposed model provided an adequate fit to the data, ${\chi}^2=668.894$(p<.001), df=373, CMIN/DF=1.794, GFI=.901, AGFI=.877, NFI=.928, CFI=.967, RMSEA=.044. The model's fit, as indicated by these indexes, was deemed satisfactory, and thus provided a good basis for testing the hypothesized paths. The results show that recognition, empowerment, fair rewards, PJ, and POS had a positive significant influence on job engagement. In addition, job engagement had a negative significant influence on TI. Through this it was confirmed that an optimized organization(working) environment reduced employees' turnover intention by increasing their job engagement level. Therefore, it is suggested that F&B departments at super deluxe hotels design various internal marketing programs from the perspective of efficient human resource management. Implications and limitations, as well as future research directions are also discussed.

A Sensitivity Analysis of Design Parameters of an Underground Radioactive Waste Repository Using a Backpropagation Neural Network (Backpropagation 인공신경망을 이용한 지하 방사성폐기물 처분장 설계 인자의 민감도 분석)

  • Kwon, S.;Cho, W.J.
    • Tunnel and Underground Space
    • /
    • v.19 no.3
    • /
    • pp.203-212
    • /
    • 2009
  • The prediction of near field behavior around an underground high-level radioactive waste repository is important for the repository design as well as the safety assessment. In this study, a sensitivity analysis for seven parameters consisted of design parameters and material properties was carried out using a three-dimensional finite difference code. From the sensitivity analysis, it was found that the effects of borehole spacing, tunnel spacing, cooling time and rock thermal conductivity were more significant than the other parameters. For getting a statistical distribution of buffer and rock temperatures around the repository, an artificial neural network, backpropagation, was applied. The reliability of the trained neural network was tested with the cases with randomly chosen input parameters. When the parameter variation is within ${\pm}10%$, the prediction from the network was found to be reliable with about a 1% error. It was possible to calculate the temperature distribution for many cases quickly with the trained neural network. The buffer and rock temperatures showed a normal distribution with means of $98^{\circ}C$ and $83.9^{\circ}C$ standard deviations of $3.82^{\circ}C$ and $3.67^{\circ}C$, respectively. Using the neural network, it was also possible to estimate the required change in design parameters for reducing the buffer and rock temperatures for $1^{\circ}C$.

Analysis of Water Quality Characteristics Using Simulated Long-Term Runoff by HEC-HMS Model and EFDC Model (HEC-HMS 모형에 의한 장기유출량과 EFDC 모형을 이용한 호소 내 수질특성 분석)

  • Kim, Yon-Soo;Kim, Soo-Jun;Kim, Hung-Soo
    • Journal of Wetlands Research
    • /
    • v.13 no.3
    • /
    • pp.707-720
    • /
    • 2011
  • For the lake case, the detention phenomenon of water body occurs and stays for a long time. Especially, following the layer of water depth direction, the lake body and water quality problems are different from the water quality of river. So according to time, the stream and water quality can be simulated by the 3-Dimensional Model, which can divide water layer for reservoir or lake. The water quality simulation result will become more reliability. For this study, the 3-Dimension Model - EFDC was used to simulate water quality of Unam reservoir in the Sumjin Dam. The HEC-GeoHMS and HEC-HMS Rainfall - Runoff Model based on GIS were used to estimate long-term runoff, and input data was constructed to the observed water level, meteorological data, water temperature, T-N and T-P. In order to apply the EFDC model, water depth was divided into 3 layers and 5,634 grids were extracted. After constructing the grid net, the water quality change of Unam reservoir in time and space was simulated. Overall, long term runoff simulation reflected the actual observed runoff well, through the water quality simulation, according to the pollution factors, the behavior characteristics can be checked, and the simulated water quality can be properly reflected. The function of EFDC has been confirmed, which water quality can be properly simulated. In the near future, to establish countermeasures for Intake Facilities of Watershed and Management, this support which some basic tools can be applied is in expectation.

Effect of Mobile Devices on the Use Intention and Use of Mobile Banking Service in Myanmar (미얀마에서의 모바일기기 특성이 모바일 뱅킹 서비스 사용의도와 실제 사용에 미치는 영향 연구)

  • Myo, Salai Thar Kei;Hwang, Gee-Hyun
    • Journal of Digital Convergence
    • /
    • v.15 no.6
    • /
    • pp.71-82
    • /
    • 2017
  • Most banks in Myanmar have begun to provide their services via mobile phones. However, few studies investigated the factors that may help to set mobile services from a customer perspective. So, this study aims to propose and test a conceptual research model to predict the user's intention to use and actual use level of mobile banking service by combining UTAUT and DeLone-Mclean IS model. Data were collected from 206 citizens who had experienced mobile banking in various regions of Myanmar. The study found that performance expectancy, effort expectancy, information quality and service quality influence the user 's intention to adopt mobile banking services which directly affects the user's actual use of them. However, social influence, facilitating condition and system quality don't influence the user's intention. The study results contribute to meeting customer's needs and reducing customer risk in Myanmar's mobile banking industry, suggesting to seamlessly provide the necessary resources like technology improvements, organizational infrastructure and service centers. Another future study are required to include service's security and trust factors so that the service providers could gain their customers' reliability and trust.

Analysis of Discharge Characteristics for a Control Gate in a River (하도내 조절수문 방류특성 해석)

  • Son, Kwang Ik
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.31 no.4B
    • /
    • pp.309-314
    • /
    • 2011
  • Analysis of discharge characteristics through control gates at river crossing structures is important for an effective water level control and water resources management. In recent years, many river control structures in four major rivers are under construction but only few researches on discharge characteristics at control gates could be found in Korea. The discharge characteristics depend on both shape of control gates and the effects of downstream water-depth. In this research, classification index for discharge patterns (free weir, submerged weir, free orifice, submerged orifice) through a control gate were reviewed with $h_g/h_1$, $h_3/h_g$, and $h_3/h_1$. Classification criteria of discharge patterns were also suggested. Representative discharge estimation equations for each discharge patterns were adopted and discharge coefficients were developed from a hydraulic model for a specific control gate which will be constructed in Nakdong river. Reliability of the derived discharge equation and coefficients were confirmed by comparisons between the real discharge in a model and the predicted discharge from the results of this research.

Development of a Prototype for the Digitalized Nuclear Power Plant's Main Control Room (원자력발전소 디지털형 주제어실 모형 개발)

  • Jung, Yeon-Sub;Cho, Sung-Jae
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.9 no.4
    • /
    • pp.145-152
    • /
    • 2009
  • Domestic Kori-1 MCR was partially modified in 2007 and will be renovated entirely in 2013. Digital devices partially replacing original analog devices have been introduced and standard alone computer systems such as SPDS have been integrated into the plant computer. Upgrading KSNP's MCR based on the ditalization is planned for 2015. However, the site engineers and operators are reluctant to the advanced systems. Therefore, a prototype for the KSNP's advanced MCR has been developed to increase the acceptance level of the operators and field engineers and also, to evaluate user interfaces and I&C architecture. For enhancing support of the operators' work, a P&ID based display system composed of multi-layers, which are linked through a context sensitive menu each other, has been adopted. The $1^{st}$ layer displays a simplified P&ID, the $2^{nd}$ layer control related diagrams such as controllers and logic diagrams, the $3^{rd}$ layer trends, etc. The end point view of MCR for KSNP is also suggested considering reliability and operability of the digital systems. Additionally, modernization strategies over the overhaul periods, that do not have much impact on operation and configuration efforts are suggested.

  • PDF

A Study on Technology Evaluation Models and Evaluation Indicators focusing on the Fields of Marine and Fishery (기술력 평가모형 및 평가지표에 대한 연구: 해양수산업을 중심으로)

  • Kim, Min-Seung;Jang, Yong-Ju;Lee, Chan-Ho;Choi, Ji-Hye;Lee, Jeong-Hee;Ahn, Min-Ho;Sung, Tae-Eung
    • The Journal of the Korea Contents Association
    • /
    • v.21 no.10
    • /
    • pp.90-102
    • /
    • 2021
  • Technology evaluation is to assess the ability of technology commercialization entities to generate profits by using the subject technology, and domestic technology evaluation agencies have established and implemented their own evaluation systems. In particular, the recently developed technology evaluation model in the fields of marine and fishery does not sufficiently reflect the poor environment for technology development compared to other industries, so it does not pass the level of T4 rating, which is considered appropriate for investment. This is recognized as a challenge that occurs when the common evaluation indicators and evaluation scales used in other industries, and when the scoring system for T1 to T10 grading is similarly or identically utilized. Therefore, through this study, we intend to secure the appropriateness and reliability of the results of the comprehensive rating calculation by developing technology evaluation models and indicators that well explain the nine marine and fisheries industry classification systems. Based on KED and technology evaluation case data, AHP-based index weighting and Monte Carlo simulation-based rating system are applied and the results of case studies are verified. Through the proposed model, we aim to enhance the usability of R&D and commercialization support programs based on fast, convenient and objective evaluation results by applying to upcoming technology evaluation cases.