• Journal of Korean Society for Atmospheric Environment
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• v.34 no.1
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• pp.87-100
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• 2018

Fast economic growth and urbanization of China have been causing air pollution not only over its domestic but transboundary atmosphere. Recent high fine particle pollution episodes in China made the government move toward more stringent air pollution control policies - which are mostly fuel switching and emissions control. In this research, we tried to understand characteristics of Chinese emissions and their change by analyzing its emissions inventory by year, sector, and region. From the inter-comparison of existing bottom-up emission inventories, we found relatively good agreements (<20% difference) for $SO_2$ and $NO_x$, but 30% or more discrepancies for some pollutants. Inter-comparison with top-down $NO_x$ emissions estimates also showed 20~50% differences by year. The regional distribution and inter-annual changes of emissions revealed different stages of energy/fuel mix and policy penetration. Early increase of pollutants emissions in the eastern part of China might give strong influences to the Korean peninsular in early 2000s but, more stringent control in that region would help improving air pollution in Korea in near future.

• Journal of Korean Society of Rural Planning
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• v.18 no.2
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• pp.27-37
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• 2012

The purpose of this study is on comparing complementary forest of village between Korea and China. For this, Jinan of Korea and Qingzhou of China were selected through the pre-survey about the representative region of both country. The main research method was literature study, field study and interview with local residents. The comparative analysis between two regions was performed by frequency analysis of surveyed data. Which shows complementary forest of village in two regions has so much in common and also has many differences which is related with the local practical life. As a result, it was identified that the area and remained number, concentration degree of Jinan were greater than those of Cheongju. But it was identified that the linear form and location were similar in both regions. Through these identification, it is helpful to establish policy direction of both countries about the complementary forest.

• Journal of Digital Convergence
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• v.12 no.4
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• pp.455-460
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• 2014

In this paper, in order to improve the online game fatigue system for the purpose of use in South Korea and China's online game fatigue system analysis and comparison and find the problem and make improvements..Poisoning Prevention Youth Network game system, although many of the practical implementation of the research is very inadequate.So here we do it by comparing South Korea and China's online game fatigue system, promote physical fatigue perfect game addicted youth to further resolve the issue.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.3
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• pp.57-70
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• 2016

Gutnori(ritual A Comparative Study on Shaman's Costume of south coast Byeolsingut in Korea and the Guizhou Nahui in China play) refers to a play in the form of showing actual appearance of god and actual comedic gag with gutguri rhythm. In order to carry out a comparison between the shaman's costume in Korea and China, this study will delve into the types of shaman costumes that are worn in the gutnoris(mask plays) performed in Korean guts and those of China performed in Nahui. As research method, literature reviews and field surveys have been conducted concurrently. In terms of literature reviews, previous research have been studied centrally. For field surveys, Korean gut, Byeolsingut performance was observed for 2 days 1 night between 1st Feb. 2014-2nd Feb. 2014 in the south coast and Chinese Nahui in Guizhou was observed for 2 days 1 night between 25th Nov. 2014-26th Nov. 2014. By comparing Shaman's costume that is worn in Korean shamanism with that of Chinese shamanism as a partial means of understanding the uniqueness of Korean shaman's costume, the following conclusion was derived upon focusing on the common types of gutnori costumes and organizing them. As a universal trait for shaman's costumes in gutnori and nahui in Korea and China, traditional clothing were worn. A unique trait for shaman's costume in gutnori and nahui in Korea and China, deity expressions were shown in both cases using colors.

• International Commerce and Information Review
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• v.14 no.2
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• pp.317-346
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• 2012

Korea's export economy across all industries are affected by the rise of China. The field of cosmetics can not be an exception. Expansion of the export of Chinese cosmetic goods can bring a greater concern to the export of Korea. Therefore, comparing the competitiveness of cosmetics in China and Korea will propose Implications for export growth strategy. To this end, comparing Korea cosmetic product's competitiveness with China, Revealed Comparative Advantage Index (RCA), Trade Specialization Index (TSI) and the status of import and export countries were comprehensively analyzed. In the case of Korea, items that have a competitive over China were No. 330499 and No. 330510. The following items in proportion were No. 330430 and No. 330590. By strengthening its position of these four items as major export items of Korea Cosmetics, export growth strategy in China and other markets around the world is needed.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1997.10a
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• pp.185-202
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• 1997

Hull forms of ancient ships in Korea and China have been changed according to their voyages and routes. Therefore it is necessary for shipbuilding engineers to reestablish the ancient shipbuilding history, and to presume, restore and revive the lost cultural inheritances. We, however, do not have many historical documents or credible materials that can our ancestors' great shipbuilding techniques : at the same time we do not have paid much attention to the research on such documents and materials. This paper aims not only to study and compare shifting process of ancient ship's hull forms in Korea and China by making use of verifiable materials obtained in the process of excavating and restoring Shinan ancient ship. The results of comparing structural characteristics and hull forms of ancient ships in Korea and China and as follwing : (1) Korean ancient ships have transverse beam instead of frame . Judged from the bottomform, Korean ancient ships are grooved clinker type ships of flat bottom type, in which bottom planking is fixed by wooden bar. (2) Chinese ancient ships have transverse bulkhead structure instead of frame, Judged from the bottom form , Chinese ancient ships are rabetted clinker type ships of V-bottom type with a bar keel. The form , the position, and the size of a sail are closely related with the wind force. It is not only quite difficult to presume forms and sizes of ancient ships' sails precisely, but also impossible to come to an accurate conclusion wihtout much experience. Current 10-year-statistics of the wind force are used to obtain presumed routes of ancient ships in Korea and China. Conclusions obtained from the hull form , sail form and size , and mast height of Shinan ancient ship will provide credible data for sea trade routes and transformation capability, and wil be used for effective materials on the study of the shifting process of ancient ships in Korea and China.

• The Journal of Internal Korean Medicine
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• v.44 no.3
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• pp.506-522
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• 2023

COVID-19 is an acute infectious disease caused by SARS-CoV-2 that has infected more than 700 million people around the world and left many deaths. In Korea and China, Korean medicine and Traditional Chinese Medicine were used to treat COVID-19, and the key element between them was herbal medicine. Clinical guidelines for herbal medicine have been published in Korea and China. In this review, the Korean and Chinese guidelines were compared and analyzed. This review was based on the latest revised clinical guidelines. The Korean guidelines covered all three guidelines published by The Association of Korean Medicine and The KM Professor Council of Internal Medicine of the Respiratory System. The Chinese guideline was published by the China National Health Commission. Based on research trends, a comprehensive comparison was made of the suggested prescriptions for each severity of COVID-19. It is expected that this review will be used as a reference for the treatment of COVID-19 or new infectious diseases in the future.

• Journal of Korean Society for Atmospheric Environment
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• v.9 no.1
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• pp.61-68
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• 1993

Since November 1990, the observations of carbon dioxide$(CO_2)$ levels have been carried out at Tae-ahn Peninsula(TAP) in Korea. Analysis on atmospheric data obtained in the period from November 1990 to August 1992 is carried out and the results are included in this study. It is observed that variations of monthly average level on $CO_2$ are in the range of 315.72 $\sim$ 365.37ppm(amplitude 17.65ppm). The seasonal variation is large with a maximum occurring in March-April and with a minimum in July-August. A comparison of TAP data is made with data obtained at Ryori in Japan for 1991. The annual average value of TAP is 1.79ppm higher than that of Ryori. It is also found that in summer the minimum level of $CO_2$ at TAP is almost same as the $CO_2$ level occurring at Quinghai Province in China and at Ulaan Uul in Mongolia. Albeit, a maximum concentration of $CO_2$ at TAP is slightly higher than that of the same gas observed at other sites in spring. We interpret that TAP is generally under the influence of airflows coming from China. According to analysis of trajectories and airflows, we find the high values of $CO_2$ when an air flow is originated mainly from China and when an airflow is both of local(Korea) and of China origins. In contrast, when an airflow of maritime origin arrives, a low value of the atmospheric constituent is observed at TAP.

• Analytical Science and Technology
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• v.18 no.1
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• pp.51-58
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• 2005

A comparison of the analytical data obtained by three $k_0$-NAA software programs was carried out using both the airborne particulate matter collected from an urban site and the certified reference materials of the air filter and urban dust to evaluate the performance of the analysis. The individual $k_0$-NAA standardization methods of three countries, Korea, China and Vietnam which had been modified from the well established $k_0$-program were used for the comparative analysis. The measured concentrations of 30 elements from the two kinds of air samples based on this software were in agreement with each other within about 20% analytical error except for a few elements. By contrast, the results of China and Vietnam were moderately higher than that of Korea due to a systematic error associated with the detection efficiency, gamma peak analysis and geometric effect.

• Journal of the Korean Society of Systems Engineering
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• v.18 no.1
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• pp.90-98
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• 2022

On February 12, 2019, the U.S. Department of Defense newly established and announced the "Defense AI Strategy" to accelerate the use of artificial intelligence (AI) technology for military purposes. As China and Russia invested heavily in AI for military purposes, the U.S. was concerned that it could eventually lose its advantage in AI technology to China and Russia. In response, China and Russia, which are hostile countries, and especially China, are speeding up the development of new military theories related to the overall construction and operation of the Chinese military based on AI. With the rapid development of AI technology, major advanced countries such as the U.S. and China are actively researching the application of AI technology, but most existing studies do not address the special topic of defense. Fortunately, the "Future Defense 2030 Technology Strategy" classified AI technology fields from a defense perspective and analyzed advanced overseas cases to present a roadmap in detail, but it has limitations in comparing private technology-oriented benchmarking and AI technology's maturity level. Therefore, this study tried to overcome the limitations of the "Future Defense 2030 Technology Strategy" by comparing and analyzing Chinese and U.S. military research cases and evaluating the maturity level of military use of AI technology, not AI technology itself.