• The Journal of Fisheries Business Administration
• /
• v.42 no.1
• /
• pp.85-96
• /
• 2011

We have done the input-output analysis to see the over all impact of flounder industry of Jeju region on the domestic economy of Korea. To do the input-output analysis, we have constructed the data set for the input-output table by using the existing data set in the "2003 input- output table of Jeju regional area" published by the joint work of Jeju branch of Korea bank and the Jeju Development Institute, together with some raw data provided by Jejudo Marine Fish-Culture Cooperative. We have also produced input coefficient of flounder industry by making flounder industrial sector exogenous, separated from intermediate demand. To summarize our empirical results, the inducement effect of production, value added, and employment of Jeju flounder aquaculture industry are 300 billion won, 116 billion won and 1,800 people respectively. In conclusion, the results of this study suggest flounder industry of Jeju region contributes powerfully to not only Jeju economy but also all over the Korea economy.

• KDI Journal of Economic Policy
• /
• v.37 no.2
• /
• pp.40-63
• /
• 2015

Anthracite exports have special value within the DPRK's economy. In this paper, we focus on what determines the DPRK's anthracite exports to China. We use panel data consisting of cross-section data from 30 provinces in China and quarterly time-series data from 1998 to 2013. Controlling for all other variables that affect anthracite imports, the variable for steel production in China is robust and statistically significant. This is consistent with on-site interviews which indicate that much of North Korean anthracite is consumed by China's steel industry. This implies that the North Korean authorities need to make adjustments to the foreign trade structure, as the import demand for anthracite in China may decline further.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.5
• /
• pp.1947-1953
• /
• 2012

The vehicle fuel economy is very important issue in the view of global warming. This paper proposes the three fuel economy improvement algorithms which predict the velocity using altitude data of the positions in front of vehicle and estimates their performances. The proposed 3 algorithms are WMGA(Weighted Mean Gradient Angle), RAADE I, II(Reacceleration After Deacceleration I, II). This research extracts the distance and altitude data from received GPS data and calculates gradient angle and road load for each section. The velocity profile according to proposed algorithms is made for Youngdong highway of 213km. And the test vehicle runs along this highway and fuel economy is measured. RAADE II of proposed algorithms showed better performance by 3.571% in comparison to the conventional CVELCONT3.

• Journal of Korean Society for Quality Management
• /
• v.47 no.4
• /
• pp.875-894
• /
• 2019

Purpose: This research is the impact of service quality of Economy Hotels on customer satisfaction and Re-visit Intention in China. It reviews the empirical theories about Economy Hotels at home and abroad, based on SERVPERF, combines with the actual situation of China's Economy Hotels, and then constructs based on the research results at home and abroad. In the subfactor of service quality, "recovery" is added, and the relationship model between the service quality of Economy Hotel, customer satisfaction and Re-visit Intention is designed, in which the mediated effect of "customer satisfaction" between the service quality's subfactor and Re-visit Intentio is explored. Methods: 334 questionnaires were distributed to the check-in guests of three Home Inns in China's first-tier cities (ShangHai,BeiJing,ShenZhen), of which 300 were valid for data analysis. Result: The data analysis results show that the Economy Hotels' subfactor of service quality have a positive impact on customer satisfaction and Re-visit Intention, and customer satisfaction also plays an mediated effect. (partial mediation: tangible, reliability, recovery; full mediation: responsiveness, assurance, empathy) Conclusion: The research puts forward the enlightenment points for the development of Economic Hotels through the differences in the development emphasis and service quality between Economic hotels and other types of hotels, so as to improve the satisfaction and market competitiveness of China's Economic hotels through the research results.

• The Journal of the Korea Contents Association
• /
• v.19 no.3
• /
• pp.183-196
• /
• 2019

Economy is transforming from the ownership of goods and services to the use or sharing of ideas, goods and services these days. This is called as 'sharing economy', it has attracted as a economic paradigm a great deal of attention in recent years. The purpose of this study is to find out the influencing factors of the intention of using the sharing economy services. This study defined the success factors of the sharing economy services as the intention of using it, and presented usefulness, enjoyment, and risk as influencing factors. The attitude and trust are also the important intervening variables of using the sharing economy services. This study proposed 8 hypothesis on the relationships of these variables. The data were collected through an internet survey. The sample size is 250. The data obtained were analyzed using SPSS, AMOS for windows. The results showed that usefulness has a significant effect on attitudes, enjoyment has a significant influence on attitude and trust, risk has a significant effect on trust. However, it was confirmed that usefulness does not affect trust, and that risk does not affect attitudes.

• International Journal of Automotive Technology
• /
• v.6 no.3
• /
• pp.269-275
• /
• 2005

The engine cooling system for a medium duty V6, 4.5 L diesel engine was modeled with a commercial code, GT-Cool in order to investigate the effect of controllable electric pump on the cooling performance and the fuel economy. The simulation results of the cooling system model with mechanical coolant pump were validated with experimental data. Two different types of electric pumps were implemented into the cooling system model and PID control for electric pump operation was incorporated into the simulation study. Based on the simulation result with electric pump, conventional thermostat hysteresis was modified to reduce pump operation for additional improvement of fuel economy, and then the benefit of electric pumps with modified thermostat hysteresis on fuel economy was demonstrated with the simulation. The predicted result indicates that the cooling system with electric pump and modified thermostat hysteresis can reduce pump power consumption by more than $99\%$ during the FTP 74 driving cycle.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.12 no.1
• /
• pp.153-161
• /
• 2004

A vehicle fuel economy is one of the most important issues in view of environmental regulation and customer's needs. In order to improve the vehicle fuel economy, great efforts has been carried out on the components bases. However, systematic analysis of vehicle fuel consumption is necessary for the further improvement of vehicle fuel economy. In this paper, a methodology for the breakdown of vehicle fuel consumption was studied and proposed for systematic analysis of the vehicle fuel economy. The energy equation for the vehicle power train was set up for the analysis of the vehicle fuel economy and simplified to be calculated or estimated using the measured data in a vehicle. The amount of fuel that was used in vehicle components under arbitrary driving conditions was quantified.

• The Journal of the Korea Contents Association
• /
• v.8 no.12
• /
• pp.414-423
• /
• 2008

The purpose of this article is identify the difference of selection attributes on super-deluxe hotel and economy hotel, which business travellers consider important and understand satisfaction with the results of it so as to seek the way for economy hotel to take superior competition differentiated from the super-deluxe hotel and towards world wide competitive level. And also it is to offer necessary basic concept for new investors or experienced investors who construct economy hotel. The results indicated that this article has an implication to offer basic data for the understand of a model of economy hotel and market segmentation for business travellers who want to the service of super-deluxe hotel level but prefer economy hotel which costs relatively inexpensive.

• Journal of the Korean Home Economics Association
• /
• v.37 no.1
• /
• pp.145-156
• /
• 1999

The purpose of this study is to investigate the relationships between mothers' and college women's as daughters consciousness and behaviors for diligence, frugality and economy and also analyze related variables such as socio-economic variables. The data used in this study included 273 college women and their mothers living in Seoul. The results of this research were as follows. 1) Three variables of consciousness and behaviors of mothers and their daughters are still highly maintained. There are significant differences between all of the consciousness and behavior variables except frugality between mothers and their daughters. 2) Mother's diligent consciousness is positively correlated with daughter's frugaliy behavior and economy consciousness. Mother's economy consciousness and behavior are positively correlated with daughter's frugality behavior. Only mother's frugality consciousness negatively correlated with daughter's frugality consciousness and economy behavior. 3) The mothers' consciousness and behaviors of frugality, and economy varies significantly according to the socio-economic variables such as mother's education, mother's job, income and social status. 4) The daughters' consciousness and behaviors of diligence, frugality, and economy varies significantly according to the amount of allowence.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.21 no.5
• /
• pp.34-39
• /
• 2013

The gear shifting timing of a manual transmission vehicle is influencing fuel economy. This paper focuses on an gear shifting indicator of an city bus with manual transmission, which can improve fuel economy. The shift indicator is supposed to collect the vehicle data during driving, calculate and compare fuel economy with and without gear shifting, and indicate the proper gear shifting timing. The H/W and S/W of the shift indicator are developed and tested on city bus in this research. The experiments are carried out on real road by 3 different drivers and the results show the improvement of fuel economy from 6.0% to 21.4%. The average engine torque and speed are reduced due to early gear shifting and the usage of highest gear is increased. The results of chassis test are also performed and show 7.5% improvement of fuel economy.