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차주영 ( Juyoung Cha ),이희찬 ( Heechan Lee ) 관광경영학회 2019 관광경영연구 Vol.87 No.-
The purpose of this study is to identify the spending behavior of the Southeast Asian market as a potential market with a high possibility of future growth in order to preemptively cope with diversification of overseas tourism market, and to provide necessary information for attracting foreign visitors. The survey was conducted by the Korea Culture and Tourism Research Institute on the outlook of foreign tourists in 2016. The spatial range was limited to three major countries including Singapore, Thailand, and Malaysia. The Tobit model was applied to estimate the expenditure determinants. The dependent variables included in the model are total tourism expenditure and expenditure by type, including food, beverage, shopping, and entertainment related costs. The explanatory variables affecting tourism expenditure in Southeast Asia include variables related to demographic characteristics and tourism behavior characteristics. In China, when compared with Southeast Asian countries, the respondents who visited Korea for leisure, amusement, and vacation were more likely to spend more on total expenditures and shopping spending. And that they spend a lot of money. In the case of Singapore, it was found that those who came to Korea for the purpose of leisure, amusement and vacation and those who visited Korea for the first time had relatively more total expenditure and shopping expenditure. As in China, women showed relatively higher total expenditure and shopping spending, especially for younger women. In the case of Thailand, it is found that professional women have relatively higher total expenditure and shopping expenditure. On the other hand, young people in non-professions showed relatively high expenditure on entertainment. In Malaysia, families with relatives and relatives returning to Korea are more likely to spend more on total expenditure and shopping.
차주영(JuYoung Cha),강인필(Inpil Kang) Korean Society for Precision Engineering 2011 한국정밀공학회지 Vol.28 No.11
With the help of nanoscale materials like carbon nanotube (CNT), there is the potential to develop new actuators that will provide higher work per cycle than previous actuator technologies, and generate much higher mechanical strength. In this study, the electrochemical actuation characteristics of nano carbon materials were experimentally studied to develop electrochemical actuators. The electrochemical actuators were composed of aqueous NaCl electrolyte and their actuating electrodes were made of multi-walled carbon nanotube (MWCNT)/polystyrene composite and graphene respectably. Actuation is proportional to charging transfer rate, and the electrolysis with an AC voltage input has very complex characteristics. To quantify the actuation property, the strain responses and output model were studied based on electrochemical effects between the nano carbon films and the electrolyte.