• Journal of Korea Society of Waste Management
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• v.35 no.7
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• pp.616-626
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• 2018

The quality standards of solid refuse fuel (SRF) define the values for 12 physico-chemical properties, including moisture, lower heating value, and metal compounds, according to Article 20 of the Enforcement Rules of the Act on Resource Saving and Recycling Promotion. These parameters are evaluated via various SRF Quality Test Methods, but problems related to the heavy metal content have been observed in the microwave acid digestion method. Therefore, these methods and their applicability need improvement. In this study, the appropriate testing conditions were derived by varying the parameters of microwave acid digestion, such as microwave power and pre-treatment time. The pre-treatment of SRF as a function of the microwave power revealed an incomplete decomposition of the sample at 600 W, and the heavy metal content analysis was difficult to perform under 9 mL of nitric acid and 3 mL of hydrochloric acid. The experiments with the reference materials under nitric acid at 600 W lasted 30 minutes, and 1,000 W for 20 or 30 minutes were considered optimal conditions. The results confirmed that a mixture of SRF and an acid would take about 20 minutes to reach $180^{\circ}C$, requiring at least 30 minutes of pre-treatment. The accuracy was within 30% of the standard deviation, with a precision of 70 ~ 130% of the heavy metal recovery rate. By applying these conditions to SRF, the results for each condition were not significantly different and the heavy metal standards for As, Pb, Cd, and Cr were satisfied.

• The Journal of Korean Philosophical History
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• no.36
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• pp.259-291
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• 2013

This article is to study the purpose and significance of Chongyoulun of Peiwei, and it is composed of the two parts of philosophy and critical mind. The critical mind on Chongyoulun is as follows: first, it is mis-interpretative to define the main thought of Laozi as Xuwu. Next, the old philosophers did not criticize Xuwuism properly; as a result, they failed to stop spreading Xuwuism. Last, Guiwulun brought about the disorder of the way of life and the collapse of the public order. Based on this critical mind, Peiwei built up the following philosophy based on You as the fundamental principle of the existence and the movement of universal nature. First, Tao is the combined Wanyou, not abstract substance which is outside of Wanyou. Second, Wu is the state of being without You, and You only comes from You. Third, You can survive depending on external You because You is not the independent substance. Therefore, understanding the external You is the main factor of its existence. Fourth, Wanyou do not harm each other as they get together since Wanyous are interdependent. People are the being who can live through the mutual dependent relationships; hence, social system and morals (ethics) are key factors of the world in the oncological point of view. Wanyou had tried to rebuild the corrupted way of life and public order by recovering the justification of moral orders based on the mutual dependence of Wanyou which is the substance character.

• The Journal of Korean Philosophical History
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• no.25
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• pp.137-166
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• 2009

Prior studies on Nam-myoung characteristics used to focus on practical confucianism of "Kyeong Eui (Respect and righteousness)" ideology. However, in the strict sense, what are the elements that can define Nam-myoung as a historical figure and as he has been in his time and after his death? Is it his philosophy established and derived from respect and righteousness? For this, I have a quite different view. All of literatures about Nam-myoung from his and his posterity time consistently most highly valued the idea of "Entering the government service and live in seclusion" advocated by Nam-myoung who consistently refused to be assigned any post from the government. This study aims to look into his idea by examining his personality and to find out the basis of his idea implied through the examination. He discussed the practices of "Entering the government service and live in seclusion" of other historical and present figures of his time through critical examination on them. For setting the reference for determining the reasonability for their practice of such idea, Nam-myoung pointed out "foresight" for understanding "Gimi (shade)" of which "Gi" is the diverging point of good and evil. He understood if one puts aside self-interest and observes the law of nature, one would be a good and lucky man but if one includes self-interest in the law of nature one would be a wicked man. His view on anyone entering government service when the time is against the person to obtain the post or when the person is unable to fill the post satisfactorily, was that they are 'people with self-interest' and therefore their practice of entering the government service and living in seclusion is wrong.

• (The)Study of the Eastern Classic
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• no.33
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• pp.57-96
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• 2008

Kim, Kyung Jang(1597~1653) as a disciple of Jang Hyun Gwang was very famous for his virtuous conduct. But his collection of works has been published recently. There has never been any studies about his thoughts, learning and life. Therefore this study has a target to arrange the process of his life and events, and to introduce outlines of his learning. The items of this study will be as follows: The first category will be his lineage, his life, and writings. The second category will be his learning. This category has two lower categories. The first will be focused on his intention to morally accomplished self by the method of self cultivation and practise of Confucian proprieties. The second will be focused on his learning of the Change and of the Confucian proprieties. And giving attention to his 6 diagrams that have symbolized principles of the Change, this paper tries to compare these to the other scholars ones and so will explane the features of his diagrams. The most important thing in this paper is to define his learning as so called in the rhetoric of Confucianism Wi-gi-ji-hak(爲己之學), which means self organization of one's moral personality by the method of self cultivation and to distinguish the steps of his learning developed. This method has never been applied, but this is expected to become a effective method for explanation of the truth of the Confucian scholar's world of learning.

• The Southeast Asian review
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• v.28 no.3
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• pp.111-158
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• 2018

This paper pays attention to the recent increase of young Koreans working in the low-skilled service sector in Singapore. Such rapid increase largely results from the Korean government's initiatives to promote labour migration of young people and the concurrent proliferation of migration agencies, against the background of growing youth unemployment in South Korea. By exploring the motivations and trajectories of young people's labour migration to Singapore, this study examines to what extent they think their expectations have been met and how they interpret their migration and work experiences. There has been little research that examines the actual voices of young migrants as part of migration studies, whilst the majority of previous research focuses on the evaluation of government support programmes based on job matching rates, surveys of participant satisfaction and etc. Young people who went to Singapore to improve their English language skills and qualifications for future employment in Korea have become frustrated due to low-skilled service jobs that consist of low pay and high labour intensity. Their credentials are devalued and they experience deskilling through this migration process. Most of them were discontent with the Korean migration agencies they used and critical about programmes offered by government institutions and universities/colleges. Despite being subject to deskilling, they did try to actively cope or resist this situation. This study focuses on the various ways these migrants attempted to manage the gap between their initial expectations and reality. It also demonstrates how these migrants interpreted their work experiences after returning to Korea: whilst most of them did not cash off their Singapore work experience for a decent job after returning to Korea, they did not define their experience as a complete failure. Adding to cultural, social capital they gained through this experience, they acquired 'mobility capital' which includes confidence, the desire to move, and capacity to control one's own movement.

• (The)Study of the Eastern Classic
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• no.35
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• pp.215-242
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• 2009

19C was a chaotic time of Chosun dynasty, in order to make society stable, the scholas of Chosun wanted to define themselves as a little China on the east", to understand themselves as part of China and somehow they thought it will help for Koreans to understand who they really are. This "Chosun as a little China" idea is their spritual foundation and also the to understand who they are. From 16 C, Chosun had idea of "being a little China, so when Hwaseo talked about this idea, it was not new to the people and scholars in Chosun, however in Hwaseo's theory, the idea was more defined and realistic. In 19 C Chosun dynasty, the chaos caused by absece of fundimental principle was great, the scholars agreed Hwaseo's "Chosun as a little China" theory should be the foundational principle. Therefore, the problem of understanding and communicating about the west has to be reconcidered, because that was what they wanted to have as foundation before the comunication with west. Scholas of Chosun wanted to set their foundation before they often up their country to the west so they needed time to discuss this. In 19 C Japan on the other hand, they faced same chaos that Chosun experienced, however they went totally different way, because Japan unerstood the reallity and accepted western civilization. Specially, the latter period Mito study influenced to make that decision by changing the west from what they have to defeat to what they have to respect and copy. Both Chosun and Japan focused on making thier countries stronger, but Chosun found the answer in focusing on orthodox confucianism and Japan found the answer in making the military stronger. That is why these two countries went totally different ways in the history of 19-20 C North-east Asia.

• The Journal of Korean Philosophical History
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• no.36
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• pp.75-99
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• 2013

In this treatise, the writer aimed to discuss the points that the Zhouyi("周易") which Dasan(茶山) studied is connected with Xiangshuyixue(象數易學). First of all, Dasan(茶山) reconstructed Shiyi("十翼"). The unique thing is that he included such a new topic, called Shiguachuan("蓍卦傳") - manual of divination signs manual in the Shiyi("十翼"). This Shiguachuan("蓍卦傳") is concerned with the method of divination, and is deeply related to the Xiangshuyixue(象數易學). When it comes to the Zhouyi("周易") which Dasan(茶山) studied, Yilisifa(易理四法). As he discussed Xiang(象), it is connected to the Xiangshuyixue(象數易學). Also, there is a link between the Yilisifa(易理四法) and the Shiguachuan("蓍卦傳"). Dasan(茶山) argued that the Yilisifa(易理四法) is a must in interpreting Zhouyi("周易"). Thus, it can be said that the Zhouyi("周易") which Dasan(茶山) studied is connected with the Xiangshuyixue(象數易學). Next, the writer examined Duyiyaozhi("讀易要旨"), Yilun(易論) and Chunqiu guanzhanbuzhu("春秋官占補註")- literally, annotated collection of divination practice by compiler or editor of annals, etc. Duyiyaozhi("讀易要旨") is related to the Xiangshuyixue(象數易學), too. The writer was able to find out the fact that, in relation to the Divination Signs Manual, the Chunqiuguanzhanbuzhu("春秋官占補註") was also connected with the Xiangshuyixue(象數易學). Through these studies, the writer was able to see that how much Dasan(茶山) had exerted his efforts to define and describe Xiang(象) and Shu(數).

• (The)Study of the Eastern Classic
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• no.34
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• pp.339-362
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• 2009

If we try to define the concept of beauty in the large sense, as Kant and Chaung-tzu all agree, It can not be fixed in the one sense, but whose connotation and denotation should be extended infinitely. In this sense, I would like to say that the beauty is liberty. Aesthetics of Kant is oriented toward subjective and reflexive dimension, while that of Chuang-tzu is oriented toward natural and practical one. The difference between aesthetics of the two philosophers begins from their philosophical methodology. If the transcendental methode which is proper to Kant's philosophy prefers to discriminate and devide everything especially from dichotomic viewpoint by langage. But Chuang-tzu' methode called Za-Mang criticizes such a dichotomic division and langage itself. Even so, the two in the long run agree as to the foundation of beauty. But Kant's liberty is one of will or transcendental, meanwhile that of Chuang-tzu is based on recognize the fact that we are all production of nature. according to Chuang-tzu, in the great beginning, there was non-being. It had neither being nor name. The One originates from it. When things obtain it and come into existence. As the One, Tao is in the excrement and urine. Everything is under the constant flux. All species have originative or moving power. Although the universe is vast, its transformation is uniform. Because all things are one. Vacuity, tranquillity, mellowness, quietness, and taking no action characterize the things of universe at peace and represent the ultimate of Tao and virtue. The material was transformed to be form, form was transformed to become life, and now life has transformed to become death. A basic principle of Chuang-tzu's art is expressed in the phrase "taking off clothes and squatting down bare-backed". The key of Chuang-tzu's aesthetics is to dedicate to the expression of inner spirit instead of physical verisimilitude, and painting should be a spontaneous and instantaneous flow of the brush. Kant's concepts such as "disinterested" and "purposiveness of nature" seem to imply in the long run the unification of nature and human being which is fundament to Chuang-tzu's aesthetics.

• The Journal of Korean Philosophical History
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• no.41
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• pp.93-127
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• 2014

Toegye and Yulgok both tried to obtain the extent of goodness from the emotion they feel in reality. Toegye thought the extent of goodness is being obtained by Li[理], Yulgok thought it by Chi[氣]. But Four Bases[四端] as goodness from Li[理] would possibly threat the human identity, and the emotion of appropriateness as goodness from Chi[氣] doesn't even prove itself that it is appropriate. They explain the problems and answers through Theory of Human Mind?Moral Mind. Toegye explains that Moral Mind is meaningful as it make people identify themselves as moral existence, Yulgok explains Moral Mind is meaningful that it satisfies standard of appropriateness. While Toegye and Yulgok define Moral Mind and Human Mind as emotion of Yi-fa[已發], Chutzu defines Moral Mind and Human Mind as consciousness. and he defines consciousness as 'preparing Li(理) and practicing the emotion'. So according to Chutzu, Moral Mind and Human Mind derives the reaction from the Li(理) in order to respond to the external stimulation. Supervision of mind is completed by consciousness of Moral Mind. It means that mind not limited to Yi-fa[已發]. Then we should think that Toegye and Yulgok's Theory of Human Mind?Moral Mind is something newly resulted from their own philosophic problem. Toegye and Yulgok's Theory of Human Mind?Moral Mind is commonly explaining human mind in experiential aspect, and it will be esteemed as definite and realistic theory of Mind because it emphasizes willingness which motivates an essential activity.

• (The)Study of the Eastern Classic
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• no.69
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• pp.531-561
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• 2017

This article's aim is to contrast Dasan's commentary with Chu-tzu' and old commentary on The Meaning of learning(學) and ming(命) in Confucius Analects analects. Confucius Analects analects began with Confucius said, " Is it not pleasant to learn with a constant perseverance and application?"(1:1), and closed with Confucius said, "Without recognizing the ordinances of Heaven, it is impossible to be a superior man. We can consider Confucian analects as theory of science. I've tried to define the meaning of learning(學) in Confucius Analects, at first. The Meaning of learning in Confucian analects have 1) Technology, 2) the way of human relation, 3) liberal ar, and 4) 'learning to become a sage. Chu-tzu defines learning(學) in Confucius Analects as 'learning to become a sage'. Dasan's considered learning(學) as science in general. Chu-tzu' and old commentary defined zhiming(知命) in Confucius Analects is 'to know the fact that there is destiny in man's life(ex, life and death). Dasan reinterpreted ming(命) in Confucius Analects as human mind-nature.