Jay Y. Ohm

Understanding driver adoption of car navigation systems using the extended technology acceptance model

This study proposes an integrated research model for investigating driver adoption of car navigation systems. We consider the potential causal connections between core cognitive and psychological factors and driver intention to use these systems. We extracted possible factors that may significantly affect the perceived usability of car navigation systems from in-depth interviews with two groups of individuals: an expert group and a driver group. Data collected from N = 1045 drivers via an online survey were analysed by structural equation modelling. The results showed that the service & display quality components of the systems were the most significant determinants of driver attitude and intention to use car navigation systems. Two other factors, namely attitude and perceived usefulness, also had impacts on driver intention. Moreover, both satisfaction and service & display quality were affected by perceived system reliability, while usefulness was affected by both perceived locational accuracy and satisfaction. Satisfaction also significantly affected perceived ease of use. In addition, we introduced new external variables to the technology acceptance model (TAM) and validated the causal connections proposed by the original TAM. The present study provides valuable insights into the core factors that significantly affect driver perspectives of and intention to use car navigation systems.

Case study: Renewable electricity generation systems on Geoje Island in South Korea

Since the concept of “green growth” has become a main growth strategy for South Korea, the South Korean Government has consistently invested in the distribution and installation of renewable power generation systems, such as recommending that island communities install renewable power generation systems to reduce the cost of maintaining and operating the electricity grid system linking the islands to the mainland. Given the South Korean energy industrys heavy dependence on nuclear and fossil fuels, such renewable power generation systems are advised for both mainland and island communities. Therefore, the current study uses the Hybrid Optimization of Multiple Energy Resources (HOMER) program software to explore possible solutions to the installation and operation of independent and renewable electricity generation systems on Geoje Island, the second largest island in South Korea. The results show that photovoltaic panels,batteries,wind turbines, and converters can be used to organize such a system on Geoje Island. This study presents an optimized electricity generation system in the context of the total net present cost, fraction of renewables, and cost of energy (COE). The suggested system presents a 1.00 fraction of renewables at a COE of

Innovation activities and the creation of new employment: An empirical assessment of South Korea’s manufacturing industry

0.472 per kW h. Implications, limitations, and future research areas are presented.

Does panel type affect haptic experience? An empirical comparison of touch screen panels for smartphones

The study proposes an integrated model to explore the effects of different innovation strategies on the creation of new employment. To verify the model, 532 manufacturing firms in South Korea were investigated. The results indicated that firms’ product innovation strategies had notable positive effects on firms’ creation of new employment, whereas firms’ process innovation strategies were negatively associated with the creation of new employment. Compared with the significant effects of the process innovation and product innovation processes, the activities of both user-centred innovation and organizational innovation were not significantly related to the creation of new employment. On the basis of the statistical results, both practical and academic implications are presented.

Determinants for the success of regional ICT ventures: a close examination of South Korea

As touch screens have become one of the most prevalent means of navigating mobile devices, various types of touch screen panels, including resistive overlay, capacitive overlay, surface acoustic wave, and infrared beam panels, have been developed to meet users’ increasing need for a more intuitive and interactive touch-based experience. This study examines whether these touch screen panels have distinctive effects on user perception. Data from a between-subjects experiment (N = 80) in which participants were exposed to four panels indicate that the panel type has a significant effect on users’ perceived sense of control, ease of use, satisfaction, and viewing quality.

Optimized Renewable and Sustainable Electricity Generation Systems for Ulleungdo Island in South Korea

BackgroundThis study identifies the key motivational factors in enhancing economic performance and increasing new job opportunities for information and communication technology ventures (ICTVs) in South Korea and examines their potential causal relationships through structural equation modeling analysis on data collected from over 200 ICTVs located in Daedeok Innopolis.ResultsThe results indicate that the economic performance of ICTVs is determined mainly by government support, innovation effort, and private equity and support. Government support and innovation effort are also positively associated with new job opportunities.ConclusionsThe theoretical, industrial implications of the key findings, and recommendations for the Korean government are discussed.