• Journal of Applied Biological Chemistry
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• v.64 no.3
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• pp.245-251
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• 2021

Codonopsis lanceolata (Deoduk) was grown in East Asia, including Korea, China, Japan, and Russia, and the roots of C. lanceolata have been used as functional foods and traditional medicine to treat symptoms of cough, bronchitis, asthma, tuberculosis, and dyspepsia. The phytochemicals of C. lanceolata have been reported such as phenylpropanoids, polyacetylenes, saponins, and flavonoids that are involved in pharmacological effects such as anti-obesity, anti-inflammation, anti-tumor, anti-oxidant, and anti-microbial activities. Selecting marker substances of the main producing area by MS-based metabolomics analysis is important to ensure the beneficial effect of C. lanceolata without side-effects because differences in cultivated areas of plants were related not only to the safety of medicinal plants but also to changes in chemical composition and biological efficacy. In our present study, ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry combined with multivariate statistical analysis was applied to recognize the main producing area of C. lanceolata in South Korea. As a result of Principal Component Analysis and loading plot analysis of three groups, Inje (Kangwon-do), Hoengseong (Kangwon-do), and Muju (Jeonlabuk-do), several secondary metabolites of C. lanceolata including tangshenoside I, lancemaside A, and lancemaside G, were suggested as potential marker substances to distinguish the place of main producing area of C. lanceolata.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.9 no.2
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• pp.259-269
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• 2019

The main purpose of this study is to explore the foreign students' learning experiences in natural science basic course at college of engineering in Korea. The subjects were 7 but 4 students took part in the semi-structured interview. All of the interviews were recorded, and the recorded material was transferred and kept. The transcripts were analyzed in a qualitative method. The researchers answered the questionnaire to 7 foreign students who voluntarily participated in the study, and 4 in-depth interviews were also conducted. The interview took 30 minutes to 1 hour, and semi - structured interviewing technique was used. The contents of the interviews were all recorded with the consent of the participants, and the recorded materials were transferred and managed with the interview notes. The transferred data were analyzed based on the coding and categorization process according to the step of the continuous comparison method. The results of this study is the following. There are four themes; problems due to lack of Korean language ability when taking basic courses; problems of terms and concept understanding in major courses; supplementary learning methods of basic courses; necessity of natural science basic education program and requirement of support of the university.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.458-468
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• 2019

This research attempted to estimate monthly sales of food and beverage at the passenger terminal of Incheon int'l airport from June of 2015 to December 2020. This paper used ARIMA-Intervention model which can estimate the change of the sales amount suggesting the predicted monthly food and beverage sales revenue. The intervention variable was travel-ban policy against south Korea from P.R. China since July 2016 to December 2017 due to THAAD in south Korea. According to ARIMA, it was found normal predicted sales amount showed the slow growth increase rate until 2020 due to the effect of intervened variable. However, the monthly food sales in July and August 2019 was 20.3 and 21.2 billion KRW respectively. Each amount would increase even more in 2020 and the amount would increase to 21.4 and 22.1 billion KRW. The sales amount in 2019 would be 7.7 and 8.1 billion KRW and climb up 7.9 and 8.2 billion KRW in 2020. It was expected LCC passengers tend to spend more money for F&B at airport due to no meal or drink service of LCC or the paid-in meal and beverage service of LCC. The growth of sales of food and beverate will be accompanied with the growth of LCC according to estimated data.

• Korean Journal of Heritage: History & Science
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• v.49 no.3
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• pp.104-135
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• 2016

This paper aims to consider history and value of the Mingshansi Grottoes, a complex of Buddhist rock sculptures in Anyue County, Sichuan Province, China. Mingshansi Shiku, not that far from Baodingshan Grottoes at Dazu District, Chongqing City, is an important art work of Liu Benzun sect. Even though there are not many niches and sculptures in the Mingshansi Shiku, it was designated as a Major Historical and Cultural Site Protected at the National Level due to its large scale and highly valued art works in it. In the Mingshansi Grottoes there is not any information inscribed on the rockface about when the grottoes were established. Because a stone pagoda, which had information about when and by whom they were established, was collapsed, some scholars considered them to be made in North Song or early Southern Song Dynasties based only on the artistic style of sculptures of the grottoes. The School of Archaeology and Museology at Peking University recently carried out a survey documenting the Mingshansi Grottoes, and thereby the school gives an important material for studying the grottoes. The grottoes consist of a Dharma-protection Warrior niche, a statue of Guanyin and Dashizhi seated together, a standing Mahavairocana statue, a standing Manjushuri statue, a standing Wenshu and Puxian statue, a Turning Dharma-wheel pagoda (轉法輪塔 Zhuanfalunta) of Zhao Zhifeng, the founder of Liu Benzun sect. These statues are considered to be produced by an overall master plan in the Middle or Late Period of the Southern Song. The Shiku is believed to be a site at which Zhao Zhifeng performed some Buddhist rites such as Water and Land Rituals (水陸法會 Shuilufahui). Income of the ritual was also a major part of the funding for establishing large-scale Baoding Shiku at Dazu District, Chongqing City.

• Korean Journal of Heritage: History & Science
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• v.48 no.1
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• pp.96-131
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• 2015

Hanji(Korean traditional paper) is a valuable cultural heritage highly praised, even to this date, for its importance and technology by craftsmanship of our ancestors; it is a product of a combination of craftsmanship, well-established technologies, natural paper mulberry fiber and eco-friendly and durable natural materials and mucilages. Origin of the word 'Hanji(Korean traditional paper)' is from handmade paper made of bast part of the paper mulberry; as paper manufacturing with paper machines introduced in Japan was adopted in late Joseon, paper produced previously was called 'Hanji' and paper produced with western machines was called 'Yangji(machine made paper)'. Hanji has been called by many different names and used in various ways according to materials and production methods; and the functions varied. Hanji, from the era of three states to Joseon era, has been praised for its unique and excellent quality in three Asian countries(Korea, China and Japan); its unique excellence continues to this date in many paper-related national cultural heritages. Also total of 11 cases are registered to UNESCO Memory of the World for its importance, 8 of which are associated with traditional Korean paper: Hunminjeongeum, the Annals of the Joseon Dynasty, Jikjisimcheyojeol, Seungjeongwon Ilgi, the Royal Protocols of the Joseon Dynasty, Donguibogam, Ilseongnok and A War Diary. To examine excellent characteristics of conservation science in Hanji, many studies have been developed. By developing analysis and manufacturing technologies, the excellence of our Hanji should be re-verified scientifically and the tradition should continue as one of the representative Korean cultural heritages.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.45 no.1
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• pp.49-56
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• 2019

Pueraria thomsonii Benth. as a medicinal ingredient, has been traditionally used in Chinese medicine to treat fever, acute dysentery, diarrhea, diabetes, and cardiovascular disease. The effects of P. thomsonii flower on skin have not been reported yet. In this study, the whitening effect of P. thomsonii flower was verified using B16F1 melanoma cells and HS68 fibroblasts. P. thomsonii flower extract reduced melanin contents of B16F1 cells in a dose-dependent manner. To identify its active components, we analyzed P. thomsonii flower extract using high performance liquid chromatography (HPLC). As a result, we identified three major isoflavones of tectorigenin, tectoridin, and tectorigenin 7-O-xylosylglucoside. At a non-cytotoxic concentration, the three components also reduced melanin contents of B16F1 cells in a dose-dependent manner. The depigmentation effects were attributed to the reduced gene expression of tyrosinase and microphthalmia-associated transcription factor (MITF). In order to elucidate another depigmentation mechanism, their effects on DKK-1, a fibroblast-derived depigmentation factor, was determined in HS68 cells. As a result, P. thomsonii flower extracts, tectoridin and tectorigenin 7-O-xylosylglucoside, reduced DKK-1 gene expression, while tectorigenin increased DKK-1 gene expression in a dose-dependent manner. These results suggest that tectorigenin can be used as an effective whitening agent that inhibit melanin synthesis in melanocytes and promote the secretion of depigmentation factor from fibroblasts.

• Korean Journal of Heritage: History & Science
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• v.54 no.3
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• pp.192-203
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• 2021

This paper investigates the process of change in the meaning of the term gongye (工藝) (nowadays it means craft) during Korea's transition to the modern era. The Annals of the Joseon Dynasty (朝鮮王朝實錄) will serve as the basis for the examination of pre-modern usage, and the Korea-United States Treaty of 1882 for the changes that occurred between the translation from Chinese and from Japanese following the opening of the port . After the port opened, the meaning of gongye, which once broadly referred to the wide range of work of people from different fields, was narrowed down to singularly represent the manufacturing industry. Following the example of Japan, the first East Asian country to succeed in modernization, this new meaning of gongye was generally used in the context of embracing Western culture and creating industry. As industrialization emerged as a national mission, and new terminology was needed to express these new concepts, the Chinese characters used by the Japanese to translate Western concepts were directly imported and used without making any changes. Gongye was similar in meaning to gongeop (工業) (nowadays it means industry) at the time, and the two terms were used interchangeably. However, following the Japanese annexation of Korea, the cultural administration of the Governor-General imbued the term with artistic concepts, and gongye was differentiated from gongeop, As such, examining the establishment of terminology and concepts can be helpful for understanding the contradictions and problems of the Korean crafts scene, which were derived from a period in the past called the modern era.

• Journal of the Korea Convergence Society
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• v.11 no.12
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• pp.225-232
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• 2020

In This paper examines how "Kamishibai" was used for ideological education of children during the war. "Kamishibai" was proposed by the Ministry of Education as a methodology to "cultivate children's right concentricity. In particular, , which was produced based on a true story, highlights the father's love sent to children by obtaining chocolate wrappers from comrades, and the children's envy for chocolate. Kazuo's interview, saying, "I will succeed my father," showed that he has a continuous personality that comes with another sacrifice. After the Sino-Japanese War, the war situation intensified, and in 1940, a new edict decided to enact the "Army Support Corps". This is a measure to select eligible youth applicants from 15 to 17 years of age, after training for 4 years, and then appoint them to aviation soldiers and sergeants. This is a legal maintenance that can be put into the battlefield at any time according to the trend of the war. Just as Kazuo, a real character in "Chocolate and Soldiers", also became a "boy flight soldier" after his father's death, flying airplanes to boys at the time was also a dream that Japan's great citizens should have. In the , it is suggested that "the father enshrined in Yasukuni" is a great person, and that "I" will also grow and become a "good citizen". In particular, the two brothers in the work show the value of eternal sacrifices in Yasukuni as a typical model of the "great people".

• The Journal of Korean Philosophical History
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• no.56
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• pp.181-208
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• 2018

This paper explores divination cultures of ancient China and how scriptures of the Zhou Yi had been interpreted in terms of Confucian ethics by the Confucian school focusing on Gan hexagram in the Shanghai Museum Zhou Yi manuscript. Gan hexagram shown on the Shanghai Museum Zhou Yi manuscript corresponds with Xian hexagram 咸卦 in the received text of the Zhou Yi, which means "gan 感," and the whole subjects of the hexagram are physical love and marriage between male and female. Such examples of divination for wedding between male and female are found frequently in ancient divination including Qinghuajian "Shifa" and these materials also demonstrates that Gan hexagram merely was a divination for love and marriage. However, Xunxi 荀子 "Dalue" 大略 and "Tuanzhuan" of the received text of the Zhou Yi had expanded to the dao 道 of husband and wife, and moreover, "erqi 二氣" philosophy of yin and yang by abstracting the theme of Gan hexagram, namely Xian hexagram, from love and marriage between male and female. Such expansion had stepped forward to a generative theory of all things that composes the world and cosmos in a way of natural philosophy and to a claim for peace under heaven in a way of human society through influences by shengren 聖人. "Xuguazhuan" also regards Xian hexagram 咸卦 as the dao of husband and wife and, based on it, expands to parents and children, sovereign and subject, superiors and inferiors, and the proprieties. The commentary of "Xuguazhuan" is concluded to human manners, starting with cosmic order. These statements interpreted scriptures of the Zhou Yi as Confucian ethics and show the aspects of how the Zhou Yi had become a Confucian classic.

• (The) Research of the performance art and culture
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• no.33
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• pp.273-301
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• 2016

In this paper, it is entraining surface and the historical flow of Japanese flying acrobatic, look and lore situation up to now, as compared to this, restore our Sotte riding, trying to provide a clue of hatching in order to reproduce. In particular, the tricks to raise the rod into the body is sublimated to the big festivals of the region, focused on Akita Kanto festival was devised by one of Japan's northeastern 3 major festivals. As a typical traditional performance festival with a history of more than 200 years, the same manner as was sublimated as a professional performing arts and folk arts, actively protect the traditional performing arts, and lore, this representative of the regional festival It has a great meaning in that it was successful. That the order to act strongly cooperation of the public and private sectors to be highlighted on the whole surface of the strong act is acrobatic nature to the main content of the festival, of course the identity recovery of the region, also serves as a proud representative of the region it is also very significant. Want is greater place to suggest to researchers who want to take over the pulse of the tradition correctly restore the future Sotte ride.