• International conference on construction engineering and project management
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• 2005.10a
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• pp.947-951
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• 2005

This paper studies the economic development situation of eastern, central, and western regions in China, and the functions of Chinese universities, which include education, research and contribution to the society. A new Chinese innovation system has been emerging in forms of university-run enterprise. The commitment of Chinese government to further introduction of a market economy has been elaborated with a focus on the relations between university and industry. A new regional development scheme by using of the functions of university is considered as the effective strategy to promote economic development of China in this stage.

• Environmental Engineering Research
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• v.22 no.3
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• pp.302-311
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• 2017

Nowadays, with the burgeoning development of economy, $CO_2$ emissions increase rapidly in China. It has become a common concern to seek effective methods to forecast $CO_2$ emissions and put forward the targeted reduction measures. This paper proposes a novel hybrid model combined principal component analysis (PCA) with regularized extreme learning machine (RELM) to make $CO_2$ emissions prediction based on the data from 1978 to 2014 in China. First eleven variables are selected on the basis of Pearson coefficient test. Partial autocorrelation function (PACF) is utilized to determine the lag phases of historical $CO_2$ emissions so as to improve the rationality of input selection. Then PCA is employed to reduce the dimensionality of the influential factors. Finally RELM is applied to forecast $CO_2$ emissions. According to the modeling results, the proposed model outperforms a single RELM model, extreme learning machine (ELM), back propagation neural network (BPNN), GM(1,1) and Logistic model in terms of errors. Moreover, it can be clearly seen that ELM-based approaches save more computing time than BPNN. Therefore the developed model is a promising technique in terms of forecasting accuracy and computing efficiency for $CO_2$ emission prediction.

• Hwankyungkyoyuk
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• v.15 no.2
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• pp.76-85
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• 2002

As exchanges and cooperations among Korea, Japan and China about environmental issues become active, exchange programs about social environmental education increases. Therefore, in this study, the present state of the social environmental educations in Korea, Japan and China is analyzed and compared. The conclusions are as following. First, the social environmental education in Korea is mainly executed by NGOs about environment, religion and gender. In the social environmental education in Korea, education for sensibility in which all the people can participate such as field investigation, camping and travel holds the majority. However, the education about social-political knowledge which deals with environmental policy and economy is not sufficient. Second, in the social environmental education in Japan, the education of environmental education methods and knowledge about environmental issues, in which citizens participate such as workshop and forum holds the majority. Third, the social environmental education in China is mainly executed by CEEC under SEPA. Education toward teenagers for fostering environment-friendly attitude is mostly active, and lectures are in general. However, education for the specific knowledge of environmental issues is not enough. The social environmental education is very significant as lifelong education for environment friendly welfare society since civil decision-making leads directly the social behavior. Therefore, efforts must be made to develop the social environmental education of each countries by means of active exchange and energetic support of the social environmental education program and autonomous exchange of NGOs for the social environmental education.

• Korea Trade Review
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• v.47 no.4
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• pp.1-14
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• 2022

This study examines the impact of trade facilitation on China's trade for the period 2010-2017 using a gravity model with a measurement of APEC trade facilitation through principal component analysis. The empirical results confirmed that trade facilitation was a key factor to have a positive effect on Chinese exports and that the higher the level of trade facilitation in APEC countries, the more positive the increase in exports and quantities with China. Further, the size of the economy, the total population, and the border between the trading partner had a positive effect on Chinese trade volume. To promote economic growth through increase in trade volume, countries should actively improve trade facilitation and participate in global trade facilitation reform through continuous cooperation with trading partners.

• Journal of applied mathematics & informatics
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• v.26 no.1_2
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• pp.337-347
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• 2008

Based on social welfare maximum theory, the optimal scale of power plants entering generation power market being is researched. A static non-cooperative game model for short-term optimization of power plants with different cost is presented. And the equilibrium solutions and the total social welfare are obtained. According to principle of maximum social welfare selection, the optimization model is solved, optimal number of power plants entering the market is determined. The optimization results can not only increase the customer surplus and improve power production efficiency, but also sustain normal profits of power plants and scale economy of power production, and the waste of resource can also be avoided. At last, case results show that the proposed model is efficient.

• Nuclear Engineering and Technology
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• v.51 no.6
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• pp.1596-1609
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• 2019

The fuel rod performance has great importance for the safety and economy of an operating reactor. The fuel rod performance analysis code, which considers the thermal-mechanical response and irradiation effects of fuel rod, is usually developed in order to predict fuel rod performance accurately. The FRIPAC (${\underline{F}}uel$ ${\underline{R}}od$ ${\underline{I}}ntegral$ ${\underline{P}}erformance$ ${\underline{A}}nalysis$ ${\underline{C}}ode$) is such a fuel rod performance analysis code that has been developed recently by China Nuclear Power Technology Research Institute Co. Ltd. The code aims at the computational simulation of the Pressurized Water Reactor fuel rod behavior for both steady-state and power ramp condition. A brief overview of FRIPAC is presented including the computational framework and the main behavioral models. Validation of the code is also presented and it focuses on the fuel rod behavior including fuel center temperature, fission gas release, rod internal pressure/internal void volume, cladding outer diameter and cladding corrosion thickness. The validation is based on experimental data from several international projects. The validation results indicate that FRIPAC is an accurate and reliable fuel rod performance analysis code because of the satisfactory comparison results between the experimental measurements and the code predictions.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.17
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• pp.197-224
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• 2002

This paper aims to analyze the status and prospects of chinese e-commerce, review previous literature, and provide future direction for cooperation with far east asian area This study deals with the reform, the open and entering WTO of China economy to suddenly change domestic IT industry, legal regulation of Chinese e-commerce market and cooperation with far east asian area. Especially, Chinese e-commerce market is much developed in recently, but relative legal system is unsatisfactory. Therefore this paper research firstly the present conditions and characteristics of Chinese e-commerce market, secondly Chinese e-commerce policy and legal regulation tendency, thirdly the e-commerce activity between Korea and China, and cooperation with far east asian area.

• International Commerce and Information Review
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• v.10 no.4
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• pp.553-577
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• 2008

Various export supporting systems of Korean government have affected Korean economy to be 13th in the world and over US$ seven hundred trillion in terms of the volume. Especially, export insurance system use to cover the commercial risks of Korean exporter. That is why Korean exporter have been able to do their best in exporting and expand overseas market actively. On the other hand, China who use to drive strong export expansion policy after joining WTO, have also very focused on export insurance system and developed its applicable items. From the point of view above, It is very meaningful study to compare the export insurance system between Korea and China. It is suggested that government funds for export insurance should be raised to give exporters more benefits. New kinds of export insurance items, also, should be developed to actively face international trade environment change.

• Journal of Korean Society of Rural Planning
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• v.29 no.1
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• pp.19-28
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• 2023

While economic incentives have led to migration, the failure to adapt to a new city and to ease the financial burden to support families have raised migrants' intention to return to their hometowns. Using the 2016 China Migrants Dynamic Survey, this study investigates determinants of migrants' intention to return. Migration at a young age, which is associated with lower barriers to the new culture, and intraprovince migration requiring less effort to adapt to the new city, were associated with lower intention to return. Also, migrants with less burden to support a family tend to have a higher intention to return to rural hometowns. Specifically, migrants with children over 18 years old and fewer family members are likely to return to their hometowns. To revitalize rural economy and reduce the rural-urban disparity, a policy to support migrants with high intention to return will be needed.

• Proceedings of the Safety Management and Science Conference
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• 2005.11a
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• pp.1-9
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• 2005

Along with the increasing trade volume among Korea, China, and Japan, firm and efficient logistics management through mutual co-operation Is being highly requested. In order to achieve logistics efficiency, logistics standardization should precede. Using standardized pallet is the core of logistics standardization which is closely connected to the unit load system and palletization. This study focuses on pallet standardization in three countries which are Korea, China, and Japan. The dramatic effect from pallet standardization Is expected in economy / international trade field and logistics / environment field. This study suggests an institute of Asian logistics standardization as a method to accomplish the logistics standardization among three countries. When these three countries overcome the disparity in standardization level and diverse concerns, we will finally attain efficient logistics system which will work as a 'highway' of North-East Asian logistics.