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        검색결과 4

        1.
        2022.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Background: Virtual reality (VR) programs based on motion capture camera are the most convenient and cost-effective approaches for remote rehabilitation. Assessment of physical function is critical for providing optimal VR rehabilitation training; however, direct muscle strength measurement using camera-based kinematic data is impracticable. Therefore, it is necessary to develop a method to indirectly estimate the muscle strength of users from the value obtained using a motion capture camera. Objects: The purpose of this study was to determine whether the pedaling speed converted using the VR engine from the captured foot position data in the VR environment can be used as an indirect way to evaluate knee muscle strength, and to investigate the validity and reliability of a camera-based VR program. Methods: Thirty healthy adults were included in this study. Each subject performed a 15-second maximum pedaling test in the VR and built-in speedometer modes. In the VR speedometer mode, a motion capture camera was used to detect the position of the ankle joints and automatically calculate the pedaling speed. An isokinetic dynamometer was used to assess the isometric and isokinetic peak torques of knee flexion and extension. Results: The pedaling speeds in VR and built-in speedometer modes revealed a significantly high positive correlation (r = 0.922). In addition, the intra-rater reliability of the pedaling speed in the VR speedometer mode was good (ICC [intraclass correlation coefficient] = 0.685). The results of the Pearson correlation analysis revealed a significant moderate positive correlation between the pedaling speed of the VR speedometer and the peak torque of knee isokinetic flexion (r = 0.639) and extension (r = 0.598). Conclusion: This study suggests the potential benefits of measuring the maximum pedaling speed using 3D depth camera in a VR environment as an indirect assessment of muscle strength. However, technological improvements must be followed to obtain more accurate estimation of muscle strength from the VR cycling test.
        4,000원
        2.
        2016.07 구독 인증기관·개인회원 무료
        World Advertising Research Center forecasts that internet advertising will overtake on TV advertising in 2016. The internet will become the largest advertising platform. The form of advertising is continually changing as time changes and technological progress, but the essence of advertising which widely inform information needs have never changed. With declining of advertising credibility, more and more young people prefer to get product information from friends or virtual friends online. Providing a good opportunity for enterprises to employ e-WOM when they making the marketing strategy. Prior to the initiation of new marketing activities, the majority of companies make great efforts to figure out a means of collecting all-round information on overseas target markets and global consumers for the purpose of strengthening competitiveness and then further increasing market share and enterprise benefits. The concept of customer equity has been introduced as a tool to continuously secure customers and create profits in the future. Globalization trends have attached great importance to altering the structure of the fashion industry. In particular, with expectation of conducting innovative marketing, companies engaged in SPA brands are gradually developed into global companies. Furthermore, corporate profitability is very sensitive to consumers’ attitudinal changes due to the short trend cycle of SPA brands. Most of our behaviors are predicated on the attitudes and behaviors of the others. The influence of loyal customers may turn potential customers into loyal customer owing to high customer equity. That is to say, companies may obtain more profits through higher customer equity. The study aims to explore the relationships among social influence, social learning, e-WOM and customer equity. The results of the study can be summarized as follows. First, the study elaborates on the relationships among social influence, social learning, e-WOM and customer equity. Second, by comparing the economic and cultural differences between South Korea and China, the study found the social influence has a positive influence on customer equity in different ways between the two countries.
        3.
        2015.12 구독 인증기관 무료, 개인회원 유료
        The global economic and financial conditions in 2010 and 2011 were positive and the business trade grew at about twice of the rate of that in 2009. The container shipping players started to enjoy a new chapter of international business trade having struggled to operate their vessels since 2008. So we now have to consider if the shipping business will return to its old strategy? What will happen to the container shipping sector in 10 years from now still remains uncertain. Recently, the uncertain situation globally has been giving shipping companies in difficulty the opportunity to make decision as to whether it is necessary to use super slow steaming for containerships. Therefore, the aim of this study is to analyse the necessity of super slow steaming on containerships despite such uncertainty. A Fuzzy Rule-based Bayesian Reasoning method has been used which incorporates the membership function and 14 selected nodes. Finally, the outcome of this study is 48 rules which have been proposed to assist shipping companies in their decision making processes when dealing with the dynamic business environment. Each rule gives a clear-cut understanding of the result which is able to be applied to real situations the containership industry faces.
        4,300원