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In some countries, renewable energy resources have become one of the mainstreams of energy savings and sustainable development. Thailand is one of the major countries to use renewable energy generation facilities in public buildings. In particular, public educational institutes consume large amounts of electricity from the grid. To reduce the electricity dependency on the national grid connection and greenhouse gas emissions, this paper introduces potential optimized solutions of renewable energy generation systems for a public university in Thailand, Chiang Mai University. Based on the simulation results from HOMER software, the potential configuration organized by PV panels, batteries and converters is proposed. The suggested configuration achieves 100% of the renewable fraction with $0.728 of the cost of energy for per electricity. Moreover, the greenhouse gas emissions are significantly reduced. Both the implications and limitations are presented based on simulation results.
Eunil Park; Sang Jib Kwon; Angel P. Del Pobil. Can Large Educational Institutes Become Free from Grid Systems? Determination of Hybrid Renewable Energy Systems in Thailand. Applied Sciences 2019, 9, 2319 .
AMA StyleEunil Park, Sang Jib Kwon, Angel P. Del Pobil. Can Large Educational Institutes Become Free from Grid Systems? Determination of Hybrid Renewable Energy Systems in Thailand. Applied Sciences. 2019; 9 (11):2319.
Chicago/Turabian StyleEunil Park; Sang Jib Kwon; Angel P. Del Pobil. 2019. "Can Large Educational Institutes Become Free from Grid Systems? Determination of Hybrid Renewable Energy Systems in Thailand." Applied Sciences 9, no. 11: 2319.
Since the concept of a smart city was introduced, IoT (Internet of Things) has beenconsidered the key infrastructure in a smart city. However, there are currently no detailed explanations of the technical contributions of IoT in terms of the management, development, and improvements of smart cities. Therefore, the current study describes the importance of IoT technologies on the technology roadmap (TRM) of a smart city. Moreover, the survey with about 200 experts was conducted to investigate both the importance and essentiality of detail components of IoT technologies for a smart city. Based on the survey results, the focal points and essential elements for the successful developments of a smart city are presented.
Eunil Park; Angel P. Del Pobil; Sang Jib Kwon. The Role of Internet of Things (IoT) in Smart Cities: Technology Roadmap-oriented Approaches. Sustainability 2018, 10, 1388 .
AMA StyleEunil Park, Angel P. Del Pobil, Sang Jib Kwon. The Role of Internet of Things (IoT) in Smart Cities: Technology Roadmap-oriented Approaches. Sustainability. 2018; 10 (5):1388.
Chicago/Turabian StyleEunil Park; Angel P. Del Pobil; Sang Jib Kwon. 2018. "The Role of Internet of Things (IoT) in Smart Cities: Technology Roadmap-oriented Approaches." Sustainability 10, no. 5: 1388.
This study investigated the core motivations for adopting smart home services and explored the approaches and processes through which the motivations were incorporated with the original technology acceptance model (TAM) and the acceptance of the services. To achieve this purpose, an Internet survey was conducted in South Korea. The data (N = 799) from the survey were analyzed using structural equation modeling and confirmatory factor analysis. The results suggested that the perceived compatibility, connectedness, control, system reliability, and enjoyment of smart home services were positively related to the users’ intention to use the services, whereas there was a negative association between the perceived cost and usage intention. The structural results also provided evidence of the validity of the original TAM. Although smart home services have attracted users’ interest in the housing context, only a few studies have examined how the users’ intention to use the services is motivated. The present study represents an initial step to explore the process of adopting smart home services with potential future research areas.
Eunil Park; Sunghyun Kim; Youngseok Kim; Sang Jib Kwon. Smart home services as the next mainstream of the ICT industry: determinants of the adoption of smart home services. Universal Access in the Information Society 2017, 17, 175 -190.
AMA StyleEunil Park, Sunghyun Kim, Youngseok Kim, Sang Jib Kwon. Smart home services as the next mainstream of the ICT industry: determinants of the adoption of smart home services. Universal Access in the Information Society. 2017; 17 (1):175-190.
Chicago/Turabian StyleEunil Park; Sunghyun Kim; Youngseok Kim; Sang Jib Kwon. 2017. "Smart home services as the next mainstream of the ICT industry: determinants of the adoption of smart home services." Universal Access in the Information Society 17, no. 1: 175-190.
While environmental and energy concerns have become global issues, the government of South Korea has made notable efforts and formulated plans for the diffusion of renewable energy generation facilities for the nation’s public and governmental institutions. Accordingly, Jeju Island has become one of the most promising locations for utilizing renewable energy resources. This study aims to propose potential configurations for renewable energy generation facilities (mainly solar and wind energy facilities) in response to the electricity demand of the main local governmental offices of Jeju Special Self-Governing Province. The study utilizes the hybrid optimization of multiple energy resources software to simulate two optimized configurations for generation at a cost of energy of $0.306 per kWh (independent) and $0.204 per kWh (grid-connected) with 100% renewable fraction for the island. The implications of the simulation results and limitations of the study are discussed.
Eunil Park; Ki Joon Kim; Sang Jib Kwon; Taeil Han; Wongi S. Na; Angel P. Del Pobil. Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea. Sustainability 2017, 9, 82 .
AMA StyleEunil Park, Ki Joon Kim, Sang Jib Kwon, Taeil Han, Wongi S. Na, Angel P. Del Pobil. Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea. Sustainability. 2017; 9 (1):82.
Chicago/Turabian StyleEunil Park; Ki Joon Kim; Sang Jib Kwon; Taeil Han; Wongi S. Na; Angel P. Del Pobil. 2017. "Economic Feasibility of Renewable Electricity Generation Systems for Local Government Office: Evaluation of the Jeju Special Self-Governing Province in South Korea." Sustainability 9, no. 1: 82.
After the 2002 FIFA World Cup in South Korea and Japan, the local governments of South Korea were left in charge of several large-scale soccer stadiums. Although these governments have made significant efforts toward creating profits from the stadiums, it is proving to be too difficult for several administrations to cover their full operational, maintenance, and conservation costs. In order to overcome this problem, one of the governments, Seogwipo City, which owns Jeju World Cup Stadium (JWCS), is attempting to provide an independent renewable electricity generation system for the operation of the stadium. The current study therefore examines potential configurations of an independent renewable electricity generation system for JWCS, using HOMER software. The simulation results yield three optimal system configurations with a renewable fraction of 1.00 and relatively low values for the cost of energy ($0.405, $0.546, and $0.692 per kWh). Through the examination of these three possible optimal configurations, the implications and limitations of the current study are presented.
Eunil Park; Sang Jib Kwon; Angel P. Del Pobil. For a Green Stadium: Economic Feasibility of Sustainable Renewable Electricity Generation at the Jeju World Cup Venue. Sustainability 2016, 8, 969 .
AMA StyleEunil Park, Sang Jib Kwon, Angel P. Del Pobil. For a Green Stadium: Economic Feasibility of Sustainable Renewable Electricity Generation at the Jeju World Cup Venue. Sustainability. 2016; 8 (10):969.
Chicago/Turabian StyleEunil Park; Sang Jib Kwon; Angel P. Del Pobil. 2016. "For a Green Stadium: Economic Feasibility of Sustainable Renewable Electricity Generation at the Jeju World Cup Venue." Sustainability 8, no. 10: 969.
In order to minimize the social and environmental concerns arising from the use of traditional energy resources such as fossil fuels and nuclear energy, the South Korean government has attempted to develop alternative energy resources. In particular, the large educational institutes and islands in South Korea—which have the motivation and potential to provide electrical services—are required to install renewable electricity generation facilities to reduce the burden on the local grid systems. With this trend, the current study investigates potential configurations of renewable electricity generation systems to supply the electrical demand of Jeju National University, located on the largest island in South Korea. The potential configurations suggested by the simulation results are evaluated by renewable fraction, cost of energy (COE), and total net present cost (NPC). The suggested configurations show a renewable fraction of 1.00 with COE of $0.356–$0.402 per kWh and NPC of $54,620,352–$51,795,040. Based on the results, both implications and limitations are examined.
Eunil Park; Taeil Han; Taehyeong Kim; Sang Jib Kwon; Angel P. Del Pobil. Economic and Environmental Benefits of Optimized Hybrid Renewable Energy Generation Systems at Jeju National University, South Korea. Sustainability 2016, 8, 877 .
AMA StyleEunil Park, Taeil Han, Taehyeong Kim, Sang Jib Kwon, Angel P. Del Pobil. Economic and Environmental Benefits of Optimized Hybrid Renewable Energy Generation Systems at Jeju National University, South Korea. Sustainability. 2016; 8 (9):877.
Chicago/Turabian StyleEunil Park; Taeil Han; Taehyeong Kim; Sang Jib Kwon; Angel P. Del Pobil. 2016. "Economic and Environmental Benefits of Optimized Hybrid Renewable Energy Generation Systems at Jeju National University, South Korea." Sustainability 8, no. 9: 877.
This 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. The 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. The theoretical, industrial implications of the key findings, and recommendations for the Korean government are discussed.
Eunil Park; Ki Joon Kim; Sang Jib Kwon; Jay Y. Ohm; Angel P. Del Pobil; Kyeongsik Yoo. Determinants for the success of regional ICT ventures: a close examination of South Korea. SpringerPlus 2016, 5, 1039 .
AMA StyleEunil Park, Ki Joon Kim, Sang Jib Kwon, Jay Y. Ohm, Angel P. Del Pobil, Kyeongsik Yoo. Determinants for the success of regional ICT ventures: a close examination of South Korea. SpringerPlus. 2016; 5 (1):1039.
Chicago/Turabian StyleEunil Park; Ki Joon Kim; Sang Jib Kwon; Jay Y. Ohm; Angel P. Del Pobil; Kyeongsik Yoo. 2016. "Determinants for the success of regional ICT ventures: a close examination of South Korea." SpringerPlus 5, no. 1: 1039.
Stylus pens are often used with mobile information devices. However, few studies have examined the stylus’ simple movements because the technical expertise to support documentation with stylus pens has not been developed. This study examined the usability of stylus pens in authentic documentation tasks, including three main tasks (sentence, table, and paragraph making) with two types of styluses (touchsmart stylus and mobile stylus) and a traditional pen. The statistical results showed that participants preferred the traditional pen in all criteria. Because of inconvenient hand movements, the mobile stylus was the least preferred on every task. Mobility does not provide any advantage in using the stylus. In addition, the study also found inconvenient hand support using a stylus and different feedback between a stylus and a traditional pen.
Eunil Park; Angel P. Del Pobil; Sang Jib Kwon. Usability of the Stylus Pen in Mobile Electronic Documentation. Electronics 2015, 4, 922 -932.
AMA StyleEunil Park, Angel P. Del Pobil, Sang Jib Kwon. Usability of the Stylus Pen in Mobile Electronic Documentation. Electronics. 2015; 4 (4):922-932.
Chicago/Turabian StyleEunil Park; Angel P. Del Pobil; Sang Jib Kwon. 2015. "Usability of the Stylus Pen in Mobile Electronic Documentation." Electronics 4, no. 4: 922-932.
Since the introduction of corporate social responsibility (CSR), it has become an important duty of companies and organizations. In addition, academic and industry researchers have attempted to explore the effects of corporate social responsibility on firm performance. To this end, this study examined how corporate social responsibility and service quality are notably associated with customer satisfaction and behavioral intention to use by employing a structural equation modeling method. A research model with nine constructs was introduced and the findings revealed that economic, social, and environmental responsibility, as well as in-flight service quality, significantly determined customer satisfaction, while there were notable connections between customer satisfaction and behavioral intention to use. However, service quality at airports did not have a significant effect on satisfaction. The practical and theoretical implications of the current study are discussed.
Eunil Park; Sanghoon Lee; Sang Jib Kwon; Angel P. Del Pobil. Determinants of Behavioral Intention to Use South Korean Airline Services: Effects of Service Quality and Corporate Social Responsibility. Sustainability 2015, 7, 12106 -12121.
AMA StyleEunil Park, Sanghoon Lee, Sang Jib Kwon, Angel P. Del Pobil. Determinants of Behavioral Intention to Use South Korean Airline Services: Effects of Service Quality and Corporate Social Responsibility. Sustainability. 2015; 7 (9):12106-12121.
Chicago/Turabian StyleEunil Park; Sanghoon Lee; Sang Jib Kwon; Angel P. Del Pobil. 2015. "Determinants of Behavioral Intention to Use South Korean Airline Services: Effects of Service Quality and Corporate Social Responsibility." Sustainability 7, no. 9: 12106-12121.
The concepts of corporate social responsibility (CSR) and user experience have been identified as core determinants of the success of service providers. Accordingly, practitioners and researchers have investigated the effects of service providers’ CSR and user experience on behavioral intention to use a particular service. Based on the importance of these concepts, the current study integrates subjective dimensions of CSR with the technology acceptance model (TAM) to explore whether the CSR efforts of mobile telecommunication services providers and the service acceptance of their customers have significant effects on behavioral intention to use a service. We apply structural equation modeling and find that two factors from the TAM (i.e., usefulness and ease of use) as well as economic, social, and environmental responsibility are significantly related to customer attitude and satisfaction. Moreover, our results show that there are significantly positive relationships between customer attitude and behavioral intention to use a service, as well as between customer satisfaction and intention. Practical and theoretical implications along with notable limitations of the current study are presented.
Sanghoon Lee; Eunil Park; Sang Jib Kwon; Angel P. Del Pobil. Antecedents of Behavioral Intention to Use Mobile Telecommunication Services: Effects of Corporate Social Responsibility and Technology Acceptance. Sustainability 2015, 7, 11345 -11359.
AMA StyleSanghoon Lee, Eunil Park, Sang Jib Kwon, Angel P. Del Pobil. Antecedents of Behavioral Intention to Use Mobile Telecommunication Services: Effects of Corporate Social Responsibility and Technology Acceptance. Sustainability. 2015; 7 (8):11345-11359.
Chicago/Turabian StyleSanghoon Lee; Eunil Park; Sang Jib Kwon; Angel P. Del Pobil. 2015. "Antecedents of Behavioral Intention to Use Mobile Telecommunication Services: Effects of Corporate Social Responsibility and Technology Acceptance." Sustainability 7, no. 8: 11345-11359.