• The Journal of Korean Philosophical History
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• no.28
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• pp.387-415
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• 2010

This article examines Zhu Xi(朱熹)'s theory of I-Qing(易經) present in Yi Xue Qi Meng. Zhu Xi aims to establish a novel Confucian theory of I-Qing, examining the study of I-Qing in Han Dynasity and the Taoist theory of I-Qing. To this end, he embraces Shao Yong(邵雍)'s theory of Xian Tian. Adapting the notion of Xian Tian(先天) as developed by Shao, he completes the Image-Number(象數) Theory of Hetu-Luoshu(河圖洛書). While discussing Hetu Luoshu, Zhu Xi argues that the Image and Number are not merely a form of prognostication, but a medium that reveals the principles of the nature and the sagely ways of mind. In addition, by studing I-Zhuan(易傳) in authoring Yi Xue Qi Meng, Zhu Xi maintains that the notions of Image and Number as he understands were to be approved by Confucius. This leads to the unification of Sho Yong's Tai-Ji(太極), Zou Dun Yi(周 敦頤)'s Tai-Ji, and Tai-Ji in Hetu. Through this work, Zhu Xi attempts to construct a systematic philosophy that straddles ontology and value theory, while identifying Li (理) with Xiang (象) and Shu (數). The Image-Number Theory of Hetu-Luoshu has replaced numerous theories of Image and Number at the time of Zhu Xi. Based on this theory, he restores the method of divination as presented in Xi CI Zhuan(繫辭傳). By successfully applying his theory of Image and Number to interpreting a number of recorded examples of divination during the Spring and Autumn period and the Warring States period, Zhu Xi demonstrates that his theory is not only an abstract metaphysical theory, but also can function as an adaptable method of divination.

• Journal of Electrical Engineering and Technology
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• v.10 no.1
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• pp.280-287
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• 2015

Three-level PWM rectifiers applied in medium voltage applications usually operate at low switching frequency to keep the dynamic losses under permitted level. However, low switching frequency brings a heavy cross-coupling between the current components $i_d$ and $i_q$ with a poor dynamic system performance and a harmonic distortion in the grid-connecting current. To overcome these problems, a mathematical model based on complex variables of the three-level voltage source PWM rectifier is firstly established, and the reasons of above issues resulted from low switching frequency have been analyzed using modern control theory. Then, a novel control strategy suitable for the current decoupling control based on the complex variables for $i_d$ and $i_q$ is designed here. The comparisons between this kind of control strategy and the normal PI method have been carried out. MATLAB and experimental results are given in detail.

• Journal of Haehwa Medicine
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• v.13 no.1
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• pp.321-329
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• 2004

These days as the average span of man's life increases, the patients of senile dementia also increase. In oriental medicine, the study of dementia developed during the Ming and Qing eras. So I investigated medical books on those eras, as a result, the following conclusion was drawn. 1. ZhangJingYue of the Ming era considered the cause of dementia to be emotional problems, he observed a delirium, abnormal actions, sweating loss and depression in the dementia patients and he prescribed 'BokManJeon', 'ChilBokYem' and 'DaeBoWonJeon'. 2. ChenShiZe of the Ming&Qing era considered the cause of dementia to be a dejection of liver energy, a weakness of stomach energy and phlegm, he described many symptoms and he prescribed 'SeSimTang' and 'ChukBoSunDan'. 3. WangQingRen of the Qing era considered amnesia caused by abnormal brain function, this fact is similar to Western Medicine.

• Journal of Korean Medical classics
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• v.11 no.2
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• pp.146-168
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• 1998

This thesis is a study on the diagnostic theory and methods of Macjin(checking of pulse) as described in the Whang Di Nei Qing. There are four methods of Macjin in this text, namely: Dong Macjin(動脈法), Sam Bu Gu Who Macjin(三部九脈診). In Young Gi Gu Macjin(人迎氣口脈診法), Nei Qing's Gi Gu Macjin(內徑의 氣口脈法). Each method developed in it's own way, but they are all closely related and became the basis of today's Macjin. I examined the methods of Macjin in the Whang Di Nei Qing from a perspective of "change". The main questions of this study are: "What brought about the development of the different methods?". "How do the methods differ?", and "how did these methods evoke into today's Macjin?". The method of Macjin generated spontaneously from the observation and treatment of disease. Dong Macjin was the first method developed and became the basis of subsequent forms of Macjin. The accumulation of medical knowledge and the influence of oriental philosophy fueled the evolution of Macjin. Chronologically, Macjin methods developed starting with Dong Macjin and eventually into Sam Bu Gu Who Macjin. In Young Gi Gu Macjin, and Nei Qing's Gi Gu Macjin. The different methods of Macjin vary in how many pulse points are checked, and were established with simplicity and effectiveness in mind. Dong Macjin involves the checking the whole body. Sam Bu Gu Who Macjin involves nine points. In Young Gi Gu Macjin involves four points. and Nei Qing's Gi Gu Macjin involves two. In it's early development, the checking of a patient's pulse was used to diagnose only localized disorders in comparison with symptoms. It evolved with Oh Jang Mad(五臟脈, five main types of pulse) to be able to check internal organs with the introduction of Nei Qing's Gi Gu Macjin. After the division of Chon Kwan Chuck(寸關尺), it evolved further to be able to make a detailed diagnosis by using the result of pules checks. Nowadays, we can make 28 forms of diagnostic indices from these development. In conclusion, Macjin can be used practically and effectively in the diagnosis of disease. In using three methods of Macjin(In Young Gi Gu Macjin, Nei Qing's Gi Gu Macjin, and today's Gi Gu Macjin, which can determine the whole body's Siate of well-being) in conjunction with Dong Macjin(which helps pinpoint the localized disorder), an exact diagnosis can be obtained. I strongly feel that we should acquire objectivity by accommodating Macjin with modern methods of medicine.

• The Bulletin of The Korean Astronomical Society
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• v.39 no.1
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• pp.85.2-85.2
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• 2014

The origin of the Korean Screen Planisphere with both Traditional and New Star-Charts, made by Korean Astronomers in the Royal Astronomical Bureau of the Joseon Dynasty by adopting the knowledge of the European astronomy, is investigated by analyzing its inscriptions and star charts. The considerations on both the changes in notations or representations of names of asterisms and the naming taboos used in the Old-style planisphere imply that the star-chart is originated from either the Sukjong-Stele-Replica of Cheonsang-Yeolcha-Punyajido(天象列次分野之圖). The New style planisphere is just the reproduction of Huangdao-congxingtu (黃道總星圖), with the exception of the non-Chinese-traditional stars. The Huangdao-congxingtu was made in 1723 CE by Ignatius K$\ddot{o}$gler who was a Jesuit missionary and worked for the Bureau of Astronomy (欽天監) in the Qing Dyansty. I find that the star chart was imported in 1742 CE from the Qing by An Gukrin (安國麟) who was an astronomer in the Royal Astronomical Bureau of Joseon. The chart became model for the screen star-chart made in 1743 CE and now housed in Bopju temple. I found that the inscriptions are extracted from the sentences in both Xinzhi Lingtai Yixiangzhi (新製靈臺儀象志) and Qinding Yixiangkaocheng (欽定儀象考成). Korean historical records in either Daily Records of the Royal Secretariat of the Joseon Dynasty (承政院日記) or Annals of the Joseonn Dynasty (朝鮮王朝實錄) show that Xinzhi Lingtai-Yixiangzhi was imported from the Qing Dynasty in 1708 CE, and the Qinding Yixiangkaocheng was imported in 1766 CE. Thus, the Korean Screen Planisphere with both Old and New Star-charts was certainly made after 1766 CE.

• Journal of the Korean Home Economics Association
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• v.41 no.5
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• pp.193-203
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• 2003

Magoja is a jacket for men and women. Magoja was worn between the jacket, jogori and the coat durumagi; that is over the jacket and under the coat. In the 19th century, Daewon-kun, who was wearing maqua, was in China and he came back to Korea. So, it was believed that the origin of magoja was from maqua from Qing. But, there were differences between magoja and maqua in their design. Therefore, I researched the origin of magoja and tried to know the design and the method of wearing magoja in the Chosun dynasty. The results are as follows. The design of magoja, especially its collar, was different from Chinese maqua. As analyzed above, it is difficult to regard the origin of magoja as deriving from Daewon-kun's maqua, which he wore when he went to Qing. Magoja-style jacket can be found from many old pictures. The collar of those jacket, whose style was waonsam-git unlike the present-day magoja, is consistent with the collar of sagyusam or baeja. And this kind of git style had existed for a long period of time as already studied in bangryungbangbi. Furthermore, the origin of this kind of jacket dated back to the maeksu of the Sung Dynasty; maek meaning Koguryo, maeksu was understood to indicate the style of the Koguryo jacket of short sleeves for the convenience of horseback riding. Maeksu, which varied in its kind and style, had been used as the equestrian clothes in China and was assumed to be particularly put on widely during the Yuan and Sung Dynasties. Maeksu continued to exist as daegeumeui during the Ming Dynasty but, later called magua, it was worn more widely ding the Qing Dynasty of the Manchus. This kind of maeksu or magua was the jacket which could be put on the coat and this style of wearing it during the Chosun Dynasty could be confirmed by the pictures. Therefore, magoja is not the jacket which was all of sudden derived from Qing's magua but one of traditional Korean clothes of the northern provinces which had existed for a long period of time. And magoja seemed to be put on more widely during the latter part of the Chosun Dynasty because of the influence of Qing's magua.

• Journal of the Korean association of regional geographers
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• v.10 no.3
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• pp.497-510
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• 2004

This study searched for comparison with geography of Qing China, origin of geographical name, people's feature and costume, description on regional geography, and perception on locality on view of a geographer, Ji-Won Park, a renowned Korean scholar of practical learning on the late 18th century. This study on the first three chapters of his Yorha Ilgi - "Crossing the Amnok(Yalu) River("渡河錄")," "Several Records on Senyang("監京雜識")," and "Writing Essays, Riding Horses("馹迅隨筆")," focusing on landscape of Qing China, inquiry on geographical name, feature and costume, and descriptions on locality, gives a glimpse on Park's geographical view on geography of Qing China. His writing style to compare landscapes between Korea and Qing China, full of his love for Korean landscape, is very delicate and clear, Although he sentimentalized when he passed through Bonghwang-castle(鳳凰城) in China, his subtle and beautiful writing explains that land and mountains in Han-yang(Seoul) are much more wonderful than those in China. His vivid depiction of landscape and weather on his way in Qing China is remarkable and explanation on geographical names like Parhae(渤海), Yoha(遼河), Taejaha(太子河), Senyang(瀋陽) etc. is enough to stimulate readers' curiosity on geography.

• Journal of Power Electronics
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• v.12 no.4
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• pp.615-622
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• 2012

The switching frequency of the power electronic devices used in large synchronous motor drives is usually kept low (less than 1 kHz) to reduce the switching losses and to improve the converter power capability. However, this results in a couple of problems, e.g. an increase in the harmonic components of the stator current, and an undesired cross-coupling between the magnetization current component ($i_m$) and the torque component ($i_t$). In this paper, a novel complex matrix model of electrically excited synchronous motors (EESM) was established with a new control scheme for coping with the low switching frequency issues. First, a hybrid observer was proposed to identify the instantaneous fundamental component of the stator current, which results in an obvious reduction of both the total harmonic distortion (THD) and the low order harmonics. Then, a novel complex current controller was designed to realize the decoupling between $i_m$ and $i_t$. Simulation and experimental results verify the effectiveness of this novel control system for EESM drives.

• Cross-Cultural Studies
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• v.33
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• pp.385-406
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• 2013

This research starts based on the assumption that the changes of educational system in China which had been caused by accepting western educational system in the late Qing Dynasty and the early Republic of China are indeed considered as a paradigm shift of educational system in China, This research aims first to investigate what kinds of problems and changes Chinese educational system confronted at that time and second to examine what kinds of implications such changes and problems of paradigm shift may have today in China. In order to achieve the goals of this research, I first researched changes and characteristics of educational paradigm shift occurred in the history of China. On the basis of those findings, I tried to analyze acculturation problems of Chinese educational system for that of western countries at that time, their implications in present time Chinese educational system, and the possibility of further paradigmatic shift in present Chinese education. In this paper, I assumed three historical paradigmatic shifts in educational system in China which had big influences on the foundation of Chinese education, such as the introduction of Confucian Thoughts, the introduction of Civil Examination System in Sui Dynasty, and lastly the introduction of western educational system in the late Qing Dynasty. The last paradigmatic shift occurred by the introduction of western education system into China was very different from the previous two paradigmatic shifts in China in that it was literally initiated by the world with cultures different from those of China, and that's why it is called Spatial Collision. It was also one of the many changes China had been forced to confront unvoluntarily. It was done for many other complicated factors such as the greed of western imperialistic countries, spreading of Christianity and missionary education, domestic resistance against long feudal reigning of Qing Dynasty, and lastly the intellect's eagerness for new knowledge and new ways of thinking. What is surely regretful for the paradigmatic shift of Chinese educational system was that it had been triggered by those many heterogeneous factors, thereby leading to such a sudden, entire and complete shift of Chinese education system. In addition, it was done without a deeper and further consideration of Chinese education system with thousand years of tradition. This situation could be understood to be an impetus strong enough to encourage the advent of a new paradigm propelled by rapid economic growth of China, many problems of western education system, reconsideration of Chinese tradition, and strengthening of women power in China, etc.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.18 no.1
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• pp.33-43
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• 2014

Objective I would like to identify when 'If the wind damage people, they feel aversion to wind. If the cold damage people, they feel aversion to cold.(傷風則惡風 傷寒則惡寒)' has appeared and what does this hypothesis have affected. I also researched future scholars' opinions and their criticism on this hypothesis. Methods: 1. Among the books which are related to Cold damage according to the age, books which have original text that has a relationship with this hypothesis were elected. Total of 30 books were elected, and their original text was extracted and analyzed. Results 1. This hypothesis appeared first on Hwalinseo(活人書) in the Song Dynasty, and had lots of impact on future generations. 2. After passing Song, Yuan, and Ming Dynasty, there were some opinions appeared which criticized part of this hypothesis. Dongeuibogam(東醫寶鑑) also tried to correct this hypothesis. 3. Bang Yu-Jip(方有執) of Ming Dynasty straightly opposed this hypothesis on Sanghanronjobyeon(傷寒論條辨)for the first time. It had huge influence in the Qing Dynasty and lots of scholars suggested that this hypothesis lacks persuasion. 4. Just like Qing Dynasty, this hypothesis is not accepted in the books of modern ages. Conclusion This hypothesis appeared in the Song Dynasty for the first time and had lots of influence, but some counter arguments had appeared as time passed, and during Qing Dynasty, this hypothesis lost its creditibility with lots of criticism.