• Geosciences Journal
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• v.23 no.4
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• pp.547-556
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• 2019

A new species of the most primitive rosenellid stromatoporoid Cystostroma, C. primordia sp. nov. is reported from the Hunghuayuan Formation (Lower Ordovician, Floian) of Guizhou Province in the South China Block and the Duwibong Formation (Middle Ordovician, Darriwilian) of the Taebaeksan Basin in mid-eastern Korea (North China Block). This species is the first representative of the genus found in both the North and South China blocks. Cystostroma primordia sp. nov. is characterized by the absence of denticles and distinctively smaller cyst plates (height 0.04-0.20 mm, length 0.09-0.39 mm) than any other known species of Cystostroma. The presence of C. primordia sp. nov. in Lower to Middle Ordovician strata of western Gondwana challenges the long-held view of the late Middle Ordovician emergence of Paleozoic stromatoporoids. The simple internal morphological features of this new species and its occurrence in the Lower Ordovician of South China strongly indicate that an Early Ordovician Cystostroma-type precursor from western Gondwana is located near the base of the stromatoporoid stock. This occurrence greatly preceded the late Middle Ordovician (late Darriwilian) stromatoporoid diversification in circum-equatorial regions worldwide.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.141-141
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• 2017

• Animal Systematics, Evolution and Diversity
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• v.36 no.2
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• pp.154-158
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• 2020

The Asian crested ibis Nipponia nippon is one of the world's most endangered species. Except for the Sanxii population from China, it is known that all of the crested ibis populations from East Asia have been extinguished. In these days, most of them are being inbred as captive populations in China, South Korea, and Japan, which caused their low expected genetic diversity. Microsatellite markers are well known as a suitable DNA marker for exploring genetic diversity among captive populations of a variety of endangered species. In the present study, ten microsatellite markers were developed for the captive populations of the South Korean crested ibis, which were employed to examine the level of genetic diversity with the two founders from Sanxii, China and the 70 descendants of them. As a result, the mean number of gene diversity, observed heterozygosity, and expected heterozygosity of the captive population were 0.70, 0.84, and 0.70 respectively. It revealed that the captive population of South Korea is as genetically more stable than we expected. In addition, the principal coordinates analysis and genetic structure analyses showed that the captive population of N. nippon can be divided into the two different genetic groups. The developed microsatellite markers here could be helpful for crested ibis conservation in East Asian countries such as China and Japan as well as South Korea.

• The Journal of Information Systems
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• v.28 no.2
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• pp.109-127
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• 2019

Purpose South Korea and China have a long and deep relationship from ancient times to the present. There are many exchanges between economic and educational or other aspects. It will be interesting to compare the perceptions of preliminary entrepreneurs in South Korea and China. Design/methodology/approach This study attempts to analyze the intentions of Korean and Chinese entrepreneurs, and to find the differences between Korean and Chinese entrepreneurs. The research model of this study is composed of internal and external affecting variables, and one dependent variable as the intention of entrepreneurs. A structured questionnaire was distributed to college students and graduate students in South Korea and in China. Data have been analyzed using a Lisrel 8.80 software. Findings The results of this study indicate that all variables except for successful role model have a positive influence on entrepreneurial intentions. The nationality partially mediates the causal relationship between independent variables and dependent variable. Some discussion and implications are suggested.

• Journal of the Optical Society of Korea
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• v.17 no.2
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• pp.188-199
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• 2013

This paper presents a novel algorithm for nighttime detection of the lane markers painted on a road at night. First of all, the proposed algorithm uses neighborhood average filtering, 8-directional Sobel operator and thresholding segmentation based on OTSU's to handle raw lane images taken from a digital CCD camera. Secondly, combining intensity map and gradient map, we analyze the distribution features of pixels on boundaries of lanes in the nighttime and construct 4 feature sets for these points, which are helpful to supply with sufficient data related to lane boundaries to detect lane markers much more robustly. Then, the searching method in multiple directions- horizontal, vertical and diagonal directions, is conducted to eliminate the noise points on lane boundaries. Adapted Hough transformation is utilized to obtain the feature parameters related to the lane edge. The proposed algorithm can not only significantly improve detection performance for the lane marker, but it requires less computational power. Finally, the algorithm is proved to be reliable and robust in lane detection in a nighttime scenario.

• Journal of Families and Better Life
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• v.21 no.3
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• pp.147-155
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• 2003

The purpose of this study is to investigate the effects of 4-value orientations on the financial management and the financial satisfaction of high school girls in Yanbian, China and those in South Korea. The subjects were 466 high school girls in Yanbian, China and 498 high school girls in South Korea. Cronbach'a, 1-test, and multiple regression were used as statistical analysis. The results were summarized as follows : 1) Resulting from the t-test, there were significant differences between 3-value orientations, 3-financial management behaviors, and financial satisfaction of the Yanbian girls and those of the Korean girls. 2) Resulting from multiple regression analysis, the financial management behaviors of school girls had the positive linear relationships with the variables such as 3-value orientations and country variable, The financial satisfaction of school girls had the positive linear relationships with the variables such as 4-value orientations and country variable.

• Journal of the Korean Home Economics Association
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• v.41 no.7
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• pp.25-38
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• 2003

This study explored the terminal values(Rokeach's Value) and 5-money spending styles of girls in Yanbian, China and those in South Korea. The subjects were 466 school girls in Yanbian, China and 498 high school girls in South Korea. We used Cronbach' α, t-test, and Pearson correlation analysis as statistical analysis. The results were summarized as follows : 1) at the top of the terminal value hierarchy of girls in the two countries were family security and happiness. 2) resulting from the t-test, there found significant differences between the 5-money spending styles of the Yanbian girls and that of the Korean girls. 3) resoling from the Pearson correlation analysis, there found similarities and differences in relationship between terminal values and money spending styles in two groups.

• 중국학논총
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• no.61
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• pp.223-239
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• 2019

Northeast Asian relations have been dominated by competitions rather than cooperation. Nevertheless, since the end of the Cold War, interchanges among South Korea, China, and Japan's local governments have been increasing rapidly. Why local governments of the three Northeast Asian states have maintained constant exchanges despite the sluggish cooperation of their central governments? What effects and limitations of exchanges among local governments in Northeast Asia on regional peace? The results of research show that effects of Northeast Asian local governments on regional peace is complicated. The study indicated that the local governments' exchanges had certain limitations in constructing the regional peace as an independent factor. However, it is also certain that the local governments' exchanges have contributed to the Northeast Asian peace, to some extent, by playing a complementary role in maintaining cooperation in local level.

• Fourth Industrial Review
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• v.2 no.2
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• pp.39-46
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• 2022

Purpose - This study analyzes the investment environment of South Korea by using the rating scale of Robert B Stobaugh, Jr, and draws conclusion implication. Research design, data, and methodology - The study conducted a survey on according to the political stability, capital repatriation, foreign ownership allowed, discrimination and controls, foreign vs domestic businesses, currency stability, willingness to grant tariff protection, availability of local capital, and annual inflation for last 5 years. The score of these eight aspects will be given based on the current situation in South Korea and the sum of the scores will be calculated. Result - China-Korea economic and trade relations are in a stage of transformation and upgrading, and the level of economic and trade cooperation in various fields is reaching a new level. It is hoped that Chinese enterprises will grasp business opportunities, strengthen research and analysis of the Korea market and achieve mutually beneficial cooperation. Conclusion - The investment environment of South Korea is superior according to the political stability, capital repatriation, foreign ownership allowed, discrimination and controls, foreign vs domestic businesses, currency stability, willingness to grant tariff protection, availability of local capital, and annual inflation for last 5 years.

• The Journal of Information Technology
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• v.9 no.3
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• pp.15-25
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• 2006

Currently there is fast flow of America and South Korea FTA negotiation being issued. Aim of FTA, by having free trade between two countries to gain their economical benefit. Few benefits can be expected by Korea joining FTA with America It will increase export as well as increase in overseas investment and this will lead to booming of services industry. After America and Korea FTA Discussion being announced around the world, Australia and EU also has interest of doing FTA with South Korea, which mean that America and Korea FTA has effect of bring in the overseas interest of FTA to South Korea. Expectation of American can be, create the market in South Korea to gain benefit as well as able to check out the economical issue of north east Asia country such as China and Japan. Since American side has high agreement with the make FTA with South Korea, South Korea now has to make own decision about this matter. Since Korean economy highly influence by world trade, to survive from market competition with China and Japan, Korea must involve in Free trade with world.