• Economic and Environmental Geology
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• v.41 no.5
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• pp.497-507
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• 2008

This study identified and quantified the hidden flows for steel and iron production in Korea using MIPS (Material Input per Service) methodology. In order to estimate the input orientated impact on the environment caused by the manufacture or services of a product, MIPS indicates the quantity of resources used for this product or service. In 2005, 71 million tons of raw materials were used to produce $17.6 million of added value and 4.8 thousand tons of finished steel. The amount of natural resources extracted from natural environments for the purpose of steel production was 245 million tons of TMR(Total Material Requirement), 1524 million tons of water, and 34 million tons of air. The material intensities for steel production by natural inputs (raw materials and energy) was 4.3 ton/ton of TMR, 28 ton/ton of water, and 0.5 ton/ton of air.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2017.05a
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• pp.125-125
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• 2017

최근 들어 내수용 및 수출용 자동차 보증 제도를 살펴보면 부품에 대한 방식 보증기간이 점차 연장되는 추세이며, 이에 따라 자동차사에서 요구하는 방식 및 내식성 평가 기준이 상향되어 가고 있다. 실제로 수출차에 대한 방청 품질 보증기간이 차체 구멍 발청 10년에서 12년으로 연장할 움직임을 보이는 등 점차 방식에 대한 관심이 높아지고 있다. 따라서 내식성 향상에 대한 끊임없는 연구가 지속적으로 이루어지고 있으며, 내식성 향상을 위해 구조/형상 변화, 도장 품질 향상, 최적화 설계 등 다방면에서 노력을 기울이고 있다. 그 중에서도 가장 근본적인 해결책인 소재의 내식성 향상에 대한 관심은 날로 높아지고 있는 실정이다. 특히 일본 등지에서는 GA 도금재의 사용이 증가하고 있으나, 아직은 내식성에 대한 효율적이고 체계적인 관리가 부족한 면이 있다. GA재는 합금화 과정에서 야기되는 Fe% 합금화도, 합금화 상분율(감마, 델타, 제타상), crater 등 복잡한 소재의 특성으로 인해 소재의 내식성 분석에 고려할 사항이 많다. 실제 여러 실험들을 통해서 GA재가 내식성에 영향이 있는 인자들에 대해 많은 연구가 진행되었지만 명확히 정량화되어 있지 않은 관계로 GA재의 내식성 관리 기준에 대해서도 명확하진 않은 상황이다. 본 연구에서는 당사재와 타사재의 고강도 GA재 (>440 MPa) 11종에 대해 crater분율, zeta상, 합금화도, 도금량 등의 다양한 도금 물성들을 조사하였다. 또한 이 시편들을 34일 동안의 복합염수 분무법(CCT)을 통해 얻은 최대 및 평균 블리스터 폭과 소재 표면품질 물성과의 상관관계를 통해서 부식과 연관된 관련인자들을 도출하고 정량적인 관계를 살펴보았다. GA재의 경우 다양한 물성들 중에서 도금 크레이터, 제타상, 합금화도 순으로 내식성에 영향을 주는 것으로 확인이 되었으며 이 세 인자들을 내식성 평가 지수화하여 GA재 생산시 효율적인 관리범위를 지정하는데 이용 가능할 수 있도록 diagram을 도출하였다. 따라서, 본 연구를 통하여 자동차사에서 요구하는 내식성 기준을 만족하기 위한 내식성 상관 인자들의 관리 수준을 정량화함으로써 보다 우수한 소재의 관리를 할 수 있도록 하고자 한다.

• Korean Journal of Remote Sensing
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• v.32 no.6
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• pp.673-679
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• 2016

This study propose a new method to detect Cochlodinium polykrikoides red tide occurring in South Sea of Korea using Water-leaving Radiance data and Absorption Coefficients data of Geostationary Ocean Color Imager (GOCI). C. polykrikoides were analyzed and the irradiance and light emission characteristics of the wavelength range from 412 nm to 555 nm were confirmed. The detection technique proposed in this study detects the red tide occurring in the optically complex South Sea. Based on these results, it can be used for future red tide prevention.

• International Area Studies Review
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• v.13 no.3
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• pp.781-799
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• 2009

Korea and China should come up with a mutually beneficial FTA proposal at an early date and thus lead the way towards the FTA. An FTA with China is a key issue of economic cooperation in order to confront soaring Chinese competitiveness in international markets. The purpose of this research paper is to analyze the overall Busan regional economy impacts of the Korea-China FTA. We analyzed the quantitative effects of an FTA by using microeconomic concept. The Korea-China FTA will have positive effects on the overall industry in Busan. Therefore, Busan regional industries exports and imports are expected to grow. Busan is worried the deal would pave the way for imports of cheap Chinese agricultural products, hurting the nation's already fragile agricultural sector. In contrast, Busan's manufacturing sector is expected to see its surplus rise. In sum, we think the FTA will bring benefit to the whole industry in Busan Regional economy because it accelerates development of the industries by trade and investment along with comparative advantage.

• Journal of Industrial Convergence
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• v.20 no.12
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• pp.145-153
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• 2022

This study is an empirical analysis of the major factors influencing the globalization level of Chinese public enterprises. Based on previous research, we conducted a regression analysis using the transnational index as a dependent variable and export tax refund, exchange rate, human resources, innovation ability, asset management ability, loan ability, corporate development stage, global deployment ability, etc. as independent variables. As a result of the empirical analysis of this study, it was found that export refund (E_tax) and exchange rate (E_rate) have a statistically significant effect on the external influencing factors of globalization. Human resource capabilities (Edu, O_hunan), innovation capability (R&D), and financing capability (Finance) were found to be important internal influencing factors for the globalization of public enterprises. The role of the government in establishing the strategy of SOEs should be maintained at the level of guidance and it should provide guidance so that the autonomy of SOEs is not restricted as the role of the government is separated from the government's compulsory management and supervisory functions, leading to excessively compulsory management.

• Journal of the Korea Society of Computer and Information
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• v.13 no.4
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• pp.231-240
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• 2008

In respect complication, group and period, the foreign direct investment of korea is composed of various factors. This paper studies focus on estimating the determinants of foreign direct investment of korea. The region of analysis consist of 7 groups, that is, Asia, Europe, Central and South America, Oceania, Africa, Middle East. Analyzing period be formed over a 67 point(2002. 6${\sim}$2007. 12). In this paper dependent variable setting up an amount of foreign direct investment, explanatory(independent) variables composed of gross domestic product, a balance of current accounts, the foreign exchange rate, employment to population ratio, an average of the rate of operation(the manufacturing industry), consumer price index, the amount of export, wages(a service industry). For an actual proof analysis, LIMDEP 8.0 software, analysis model is random effect in TWECR The result of estimating the determinants of foreign direct investment of korea provides empirical evidences of significance positive relationships between employment to population ratio and wages(a service industry). However this study provides empirical evidences of significance negative relationships between the foreign exchange rate, censurer price index and the amount of export. The explanatory variables, that is, an average of the rate of operation(the manufacturing industry), gross domestic product and a balance of current accounts, are non-significance variables.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.135-142
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• 2016

Although growth potential of trade between Korea and the GCC region has existed in various fields through economic and business cooperation, few data and practical study related with trade structure and cooperation between Korea and GCC region have been found and the potential for further economic expansion has not been extensively explored. In this sense, this study is to analyze trade flows between Korea and GCC region countries(Saudi Arabia, Unites Arab Emirates, Qatar) using trade intensity index, trade complementarity index and special country bias index, identify potential for further expansion of Korea's trade into the GCC region and further propose the implication of FTA between mutual countries. Our analysis of trade flows also demonstrates that there is a high level of trade complementarity between Korea and GCC region. It means that increase of trade complementarity and special country bias come from removing not only trade barrier and increasing but also capital movement. Especially, the study reveals that there is an untapped potential for Korea to increase its exports to Saudi, based on the highest complementarities. Export expansion between Korea and Saudi through FTA will create new opportunity in near future.

• Journal of Korea Water Resources Association
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• v.56 no.12
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• pp.883-893
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• 2023

While South Korea's dependence on imported grains is very high, droughts impacts from exporting countries have been overlooked. Using the Evaporative Stress Index (ESI), this study globally analyzed frequency, extent, and long-term trends of agricultural droughts and their relation to natural oscillations and global crop prices. Results showed that global-scale correlations were found between ESI and soil moisture anomalies, and they were particularly strong in crop cultivation areas. The high correlations in crop cultivation areas imply a strong land-atmosphere coupling, which can lead to relatively large yield losses with a minor soil moisture deficits. ESI showed a clear decreasing trend in crop cultivation areas from 1991 to 2022, and this trend may continue due to global warming. The sharp increases in the grain prices in 2012 and 2022 were likely related to increased drought areas in major grain-exporting countries, and they seemed to elevate South Korea's producer price index. This study suggests the need for drought risk management for grain-exporting countries to reduce socioeconomic impacts in South Korea.

• International Commerce and Information Review
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• v.15 no.2
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• pp.345-364
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• 2013

This paper analyzed the Trade Structure of environmental industry in Korea and some major countries in preparation for The Doha Development Agenda (DDA) Trade Liberalization Negotiation in the environmental goods. Based on 161 environmental goods list proposed by OECD, this paper examined the Trade Returns of worldwide environmental goods during the past 10 years from 2002 to 2011. The analysis showed that Korean environmental goods' International Market Share(IMS) in the world was 3.2%; trade specialization index(TSI) -0.128; Revealed Comparative Advantage(RCA) 1.002 in 2011. And Korea Export Similarity Index(ESI) to Japan was the highest rank in the world market. According to the results of investigation, it is clear that International Competitiveness of the Korean Environmental Industry was received a relatively poor evaluation compared with Korean trade scale. To strengthen the competitiveness, it is required that Korean government should make an effort to boost domestic environmental industry and promote systematically Trade Liberalization Negotiation including the enforcement of transient period for Korean environmental goods in the next DDA Negotiation.

• Journal of the Korean Regional Science Association
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• v.34 no.2
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• pp.65-77
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• 2018

The purpose of this study is to compare and analyze factors in country risk between Cambodia and Vietnam. OECD and the Export-Import Ban of Korea assess country risk of Cambodia more highly than Vietnam. As results of the parametric tests for evaluation factors on the basis of country risk classification, the economic growth rate, the foreign trade index, and the foreign exchange reserves among the economic risks with the corruption index as the political and social risk have statistically significant effect on the difference between country risks of two countries. However, discriminant factor analysis indicates that the economic growth rate, the foreign exchange reserves, and the corruption index are key variables, which represent the difference between country risks of Cambodia and Vietnam. Consequently, the government of Cambodia needs to try to root out the corruption and to expand trade through increasing export for lowering the country risk to the level of Vietnam. Vietnam would also need to focus on attaining the sustainable high economic growth rate and increasing the foreign exchange reserves.