• Journal of Digital Convergence
• /
• v.19 no.9
• /
• pp.115-123
• /
• 2021

The primary purpose of the study is to investigate museum visitors' intention to use of smart tourism contents by applying the extended technology acceptance model. The study conducted an online survey of a convenience sampling of individuals who visited the National Museum of Korea, and it conducted confirmatory factor analysis and structural equation modelling to test hypotheses of the study. The results showed that information quality of immersive digital gallery in the National Museum of Korea had a significant regression weight on both perceived ease of use and perceived usefulness, and perceived ease of use had a significant regression weight on perceived usefulness. Moreover, both perceived ease of use and perceived usefulness had a significant regression weight on intention to use. The findings indicate that it is necessary to develop smart tourism contents with easily accessible and usable digital applications for promoting smart tourism in the museum.

• Korean journal of applied entomology
• /
• v.37 no.2
• /
• pp.151-157
• /
• 1998

Infestations of two spotted spider mite (TSSM), Tetranychus urticae Koch, on glasshouse rose (Rosa sp.) grown by an arching method, were determined by counts of the number of TSSM per leaflet in Buyeo, Chungnam Province, for a 2-yr period. Binomial sampling plans were developed based on the relationship between mean density per leaflet (m), and proportion of leaflets infested with ( T mites (PT), according to the empirical model In (m) = a+p In (-ln (1 -PT)). T was defined as tally threshold, and set to 1, 3, 5, 7, and 9 mites per leaflet. Increasing sample size had little effects on the precision of the binomial sampling plan, regardless of tally threshold. However, the precision increased with higher tally thresholds. There was a negligible improvement in precision with T ) 7 mites per leaflet. T= 7 was chosen as the best tally threshold for estimating densities of TSSM based on the precision of the model. Independent data set was used to evaluate the model. The binomial model with T= 7 provided reliable predictions of mean densities of TSSM observed on the commercial glasshouse roses.

• Journal of Distribution Research
• /
• v.11 no.4
• /
• pp.1-29
• /
• 2006

This study focuses on finding out the determinants of relational quality between the supplier and the retailer in the Chinese cosmetics market. A total of 72 questionnaires were collected by surveying beauty shops which mainly do business with the foreign cosmetics suppliers in Shanghai area. The findings support the premise that a retailer's trust in a supplier is positively related to the retailer's commitment. Supplier's ability, guanxi and cultural sensitivity have positive impacts on trust. Formalization and cultural sensitivity affect commitment positively. But the formalization is not significantly related to the retailer's trust. The guanxi is not found to be significantly related to the retailer's commitment yet. Finally, the authors discuss some theoretical contributions, managerial implications. And then, they present limitations of this study and the future research directions.

• Journal of the Korean Applied Science and Technology
• /
• v.39 no.2
• /
• pp.324-334
• /
• 2022

In this study, to analyze the relationship between exercise satisfaction and exercise continuity that occurs in the interaction between leaders and participants, non-probability sampling was performed on 232 individuals from January 17 to March 9, 2022, and a structural model of 187 effective samples was used. applied and analyzed. First, the reliability and intimacy of Pilates leader-participants were found to have a significant effect on exercise satisfaction. Second, significant results were derived between Pilates exercise satisfaction and exercise continuity. Third, Pilates reliability was found to have a significant effect on exercise continuity, but intimacy was partially adopted as not having a significant effect on exercise continuity. However, the indirect effect between the mediating effects of exercise satisfaction can be seen to be statistically significant, and it can be predicted that Pilates causes positive behavior in exercise satisfaction and further reduces avoidance or indirectly affects other exercises. In addition, these performances are considered to have an impact on business performance as well as mutual relationships.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 1999.10a
• /
• pp.351-358
• /
• 1999

The structural responses of underground structures are examined in probability by using the elasto-plastic stochastic finite element method in which the spatial distributions of material properties are assumed to be stochastic fields. In addition, the adaptive importance sampling method using the response surface technique is used to improve simulation efficiency. The method is found to provide appropriate information although the nonlinear Limit State involves a large number of basic random variables and the failure probability is small. The probability of plastic local failures around an excavated area is effectively evaluated and the reliability for the limit displacement of the ground is investigated. It is demonstrated that the adaptive importance sampling method can be very efficiently used to evaluate the reliability of a large scale stochastic finite element model, such as the underground structures located in the multi-layered ground.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2010.07a
• /
• pp.161-163
• /
• 2010

한국의 DMB 서비스는 이미 대중화되어 많은 이용자들이 편리하게 이용하고 있으나, 송출되는 DMB 컨텐츠의 해상도에 비해 현재 대부분의 디스플레이 장치들은 더 높은 해상도를 지원하고 있으며 따라서 다양한 방법의 영상 재표본화 기술을 채용하고 있다. 특히 휴대용 장비의 경우 연산량 문제로 저품질의 영상을 제공하게 되고 따라서 이용자들의 만족도가 떨어지게 되었다. 일반적으로 주관적인 영상의 품질은 영상 내 개체에 대한 인식률에 따라 결정되며 에지에서의 개체 간 구분이 명확할수록 증가한다. 본 연구에서는 H.264 동영상 부호화 방법에서 사용되는 인트라 예측 정보와 Total Coefficient 정보를 이용하여 에지 정보를 추출하고 이에 따라 선택적으로 보간법을 적용하여 최대한 연산량을 줄이면서 선명함을 유지할 수 있는 방법을 제안한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2019.01a
• /
• pp.187-188
• /
• 2019

2018년 12월 20일부터 '제로페이' 시범 서비스를 시작했으며, 2019년 3월 이후 본격적으로 정식 서비스를 시작해 전국으로 확대한다는 방침이다. 이론적 배경으로부터 도출된 가설을 검정하기 위해서 제로페이 사용자를 대상으로 편의표본추출법을 채택하여 설문 조사를 진행할 예정이다. 실증분석에서는 제시된 가설들의 영향 관계를 분석하고 이전 측정항목의 신뢰성과 타당성을 확보하기 위해 신뢰성 분석 및 타당성 분석을 실시한다. 또한 각 변수들 사이의 판별타당성과 변수간의 방향의 정도를 확인하기 위하여 상관관계분석을 실시하고, 경로모형과 가설을 검정한다. 본 연구를 통해 사용자들의 제로페이의 수용에 대한 결정요인을 보다 명확하게 이해할 수 있을 것이며, 관련 연구자나 실무자들은 물론 제로페이 서비스 기업들이 활용할 수 있는 마케팅 전략방안을 제시하고자 한다.

• Proceedings of the Korean Society of Disaster Information Conference
• /
• 2023.11a
• /
• pp.49-50
• /
• 2023

본 연구는 항공보안업무 종사자의 조직문화가 조직유효성에 미치는 영향을 규명하기 위하여 항공보안검색요원 300명을 대상으로 집락표본추출법(cluster sampling method)을 통해 자료를 수집하여 분석하였다. 수집된 설문지 중 표기오류, 누락, 전체 항목의 동일 표기 등을 분류하여 최종적으로 272부를 분석에 사용하였다. 연구결과 조직문화는 조직유효성에 정(+)적인 영향을 미치는 것으로 나타났다. 조직문화의 하위요인인 합리문화, 합의문화, 발전문화는 조직유효성의 하위요인인 직무만족에 영향을 미치는 것으로 나타났으며, 위계문화는 영향을 미치지 않는 것으로 나타났다. 또한 합의문화, 위계문화, 발전문화 순으로 조직몰입에 영향을 미쳤으나 합리문화는 통계적으로 유의한 영향을 미치지 않는 것으로 나타났다.

• Journal of the Korean Society of Safety
• /
• v.18 no.1
• /
• pp.116-122
• /
• 2003

Monte Carlo method is one of the powerful engineering tools especially to solve the complex non-linear problems. The Monte Carlo method gives approximate solution to a variety of mathematical problems by performing statistical sampling experiments on a computer. One of the methods to predict the time dependent failure probability of one of the bridge components or the bridge system is a lifetime function. In this paper, FORTRAN program is developed to predict the failure probability of bridge components or bridge system by using both system reliability and lifetime function. Monte Carlo method is used to generate the parameters of the lifetime function. As a case study, the program is applied to the concrete-steel bridge to predict the failure probability.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.14 no.3
• /
• pp.171-178
• /
• 1981

The growth of Sebastes alutus was studied by scale reading to check the change of growth rate at the early stage of life. Lee's phenomenon was recognized on the scale measurements except thc first ring radius. No evidence was found to support the change of growth rate at early stage. Von Bert-alanffy's growth equation was estimated with the back-calculated fork lengths, $1_t=357.8(1-e^{-0.6124(t+1.8566)}),\;and\;W_{\infty}=784.4g$