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최준,임채관 사단법인 한국융합기술연구학회 2022 아시아태평양융합연구교류논문지 Vol.8 No.12
With the development of "Internet +" and consumers' growing demand for personalized travel services, car-hailing began to flourish in the transportation field. The phenomenon of restricted private car and the shortage of taxis has accelerated the car-hailing industry. In 2017, China's online car-hailing developed rapidly. The crux to the sustainable development of the profession is whether the platform can ensure the stable growth of the number of active users in the future. As a typical representative of "Internet + sharing economy + transportation", research on users' continued use intention is not abundant. Based on the expectation-confirmation model of continuous use of information systems, united in the situations of online car-hailing, this paper replaced perceived usefulness with perceived value, and uses habit as a moderator variable to construct a conceptual model of users' continuous use intention. The empirical study conducted an online questionnaire survey of 323 car-hailing users from May 1 to 31, 2022. The analysis used SPSS26.0 and AMOS26.0 for demographic analysis, validity and reliability verification, confirmatory factor analysis, correlation analysis, moderating effect test and structural equation model path test. The results of the study revealed that: expectation confirmation has a great positive impact on perceived value and satisfaction; perceived value has a great positive impact on satisfaction and user continuation intention; satisfaction has a great positive impact on user continuation intention. In terms of the adjustment effect of habit, habit will improve the impact of perceived value and satisfaction on users' continual use. This study is intended to examine the influencing factors of the continuous use of car-hailing users, provide a certain reference for the car-hailing platform to make relevant customer management strategies, which is important for enterprises to improve consumer participation and make the full use of idle social resources.
Preparation of supercapacitor using polymer electrolyte
최준,조봉상,김기영 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
Supercapacitors are electrical energy storage device, which provided low cost, high power density, high cycle-life, large capacitance, high power delivery, fast charge-discharge rate, and mechanical robustness. Supercapacitors are used in a wide range of applications such as the hybrid electric vehicle, pulse power, memory protection, and medical equipment. The supercapacitors store electrical charge in an electric double layer at the interface between a high-surface-area carbon electrode and electrolyte. We produced structural supercapacitor with mechanical robustness made from carbon fiber/epoxy prepreg and composite solid polymer electrolyte. We prepared composite solid polymer electrolytes composed of poly (ethylene glycol) monomethyl ether acrylate, 1-ethyl-3-methylimidazolium trifluoromethanesulfonate, and inorganic fillers. The effects of characteristics of inorganic fillers on the thermal and electrochemical properties of composite solid polymer electrolyte were investigated.