• Title/Summary/Keyword: Chinese silk

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Genotoxicity Studies on Corn Silk Extract Containing High Maysin (고메이신 함유 옥수수수염 추출물의 유전독성학적 안전성 연구)

  • Ha, Ae Wha;Kang, Hyeon Jung;Kim, Sun Lim;Kim, Myung Hwan;Kim, Woo Kyoung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.46 no.9
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    • pp.1045-1052
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    • 2017
  • In this study, a battery of genetic-toxicity studies on corn silk extract with high maysin content were performed according to internationally accepted protocols. In a mutation test using Salmonella Typhimurium TA1535, TA1537, TA98, and TA100, the number of mutant colonies did not significantly increase up to a maximum concentration of $5,000{\mu}g/plate$ in the presence or absence of the S9 metabolic activation system. In the chromosome aberration test using Chinese hamster lung fibroblasts, negative results were observed in the concentration up to $1,250{\mu}g/mL$ of corn silk extract. In the micronucleus test using ICR mice, incidence of polymorphonuclear erythrocytes with a maximum concentration of 2,000 mg/kg corn silk extract did not show any significant difference compared to the negative control group. Based on these results, the test substance, con silk extract, did not influence genotoxicity.

Study of the Clothing Behavior and Fiber Preferences of Multicultural Families (다문화 가정의 의복 실태와 섬유 선호도에 관한 연구)

  • Choi, In-Ryu
    • The Research Journal of the Costume Culture
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    • v.19 no.4
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    • pp.863-875
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    • 2011
  • The purpose of this study was to survey the clothing behavior, care and the fiber preferences of multi-cultural families living in Korea. The data was collected using questionnaire surveys based on pre-tests, and a main survey conducted in Seoul, Gyeonggi Province and Chungcheong Province. The 258 participants came from 151 multi-cultural families and 107 Korean families. The results of this study were as follows: First, Filipinos owned more clothes than the Chinese and bought clothes more frequently. The Filipinos spent 10,000~30,000 Korean won on all types of clothing. Each time, the Chinese spent more money when purchasing jackets. Second, when health was the greatest concern for underclothes, they chose cotton fiber as their preferred fiber. When beauty was of greatest concern for blouses they chose cotton. When beauty was of greatest concern for skirts and jackets they chose natural fibers such as silk, wool or linen. Filipinos preferred synthetic fibers because they are easy to care for, and the Chinese preferred natural fibers due to their beauty, especially for pants. Third, multi-cultural families laundered at home using only a washing machine. All fibers were laundered together into the washer without any sorting. This study can contribute to providing basic data for an understanding of the clothing behavior and laundry styles of multi-cultural families which may be useful data in the apparel market in Korea given the relative and direct changes relevant to various clothing cultures.

Dyeing of Treditional Fabrics with Natural Dyeing (전통직물의 천연염료 염색에 관한 연구)

  • Chung, In-Mo;Lee, Yong-Woo;Woo, Soon-Ok
    • Journal of Sericultural and Entomological Science
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    • v.41 no.1
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    • pp.61-69
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    • 1999
  • The dyeing experiments were done by using tannin pigments and herbs for natural fabrics such as ramie, hemp and silk. The anti-bacterial ability and color fastness were examined for dyed fabrics. Dye materials containing tannin pigment such as oak tree leaf showed rich dyeing on ramie, hemp, and silk fabrics when the pH of dye solution is lower as well as the dyeing temperature is higher. In crimson dyeing, the colour of fabric showed red-purple when the crimson pigment was extracted at 40$^{\circ}C$, while yellow-red when extracted above 70$^{\circ}C$. The colour fastness of dye materials containing tannin pigment was excellent showing 3~4 grade or above, while most of those derived from chinese medicine showed poor colour fastness of below 3 grade. The anti-bacterial ability of dye materials derived from chinese medicine was high, since the sappan wood fabric showed low bacteria reduction rate.

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Susceptibility of some vertebrate hosts to infection with early third-stage larvae of Gnathostoma hispidum (돼지악구충 제3기 유충에 대한 여러 척추동물의 감수성 관찰)

  • 손운목;이순형
    • Parasites, Hosts and Diseases
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    • v.35 no.3
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    • pp.211-214
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    • 1997
  • Susceptibility of some vertebrates was examined to the early third-stage larvae (EL3) of Gnathostomn hispidum. The larvae collected from the Chinese loaches were infected to 4 silk carps, 3 snake heads, 3 bullfrogs. 5 mice and 9 albino rats. No worms were detected in fish. silk carps and snake heads. In 3 bullfrogs fed 30 larvae, a total of 9 EL3 was recovered in the gastrointestinal tract (8 larvae) and liver (ones). In 5 mice inferred with 50 larvae, a tolal of 37 (74.0%) advanced third-stage larvae (AdL3) was recovered from the muscle (31 larvae), liver (5 larvae) and kidney at 4 weeks after infection. In 9 albino rats iilfected with 115 larvae, a total of 40 (34.8%) AdLa was found in the muscle. The Inammalian hosts were found susceptible to the EL3 of G. hispinum from Chinese loaches.

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Implications of China's Maritime Power and BRI : Future China- ROK Strategic Cooperative Partnership Relations (중국의 해양강국 및 일대일로 구상과 미래 한·중 협력 전망)

  • Yoon, Sukjoon
    • Strategy21
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    • s.37
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    • pp.104-143
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    • 2015
  • China's new grand strategy, the "One Belt, One Road Initiative" (also Belt Road Initiative, or BRI) has two primary components: Chinese President Xi Jinping announced the "Silk Road Economic Belt" in September 2013 during a visit to Kazakhstan, and the "21st Century Maritime Silk Route Economic Belt" in a speech to the Indonesian parliament the following month. The BRI is intended to supply China with energy and new markets, and also to integrate the countries of Central Asia, the Association of Southeast Asia Nations (ASEAN), and the Indian Ocean Region - though not Northeast Asia - into the "Chinese Dream". The project will be supported by the Asian Infrastructure Investment Bank (AIIB), due to open in 2016 with 57 founding members from all around the world, and China has already promised US$ 50 billion in seed funding. China's vision includes networks of energy pipelines, railways, sea port facilities and logistics hubs; these will have obvious commercial benefits, but also huge geopolitical significance. China seems to have two distinct aims: externally, to restore its historical sphere of influence; and internally, to cope with income inequalities by creating middle-class jobs through enhanced trade and the broader development of its economy. In South Korea, opinion on the BRI is sharply polarized. Economic and industrial interests, including Korea Railroad Corporation (KORAIL), support South Korean involvement in the BRI and closer economic interactions with China. They see how the BRI fits nicely with President Park Geun-hye's Eurasia Initiative, and anticipate significant commercial benefits for South Korea from better connections to energy-rich Russia and the consumer markets of Europe and Central Asia. They welcome the prospect of reduced trade barriers between China and South Korea, and of improved transport infrastructure, and perceive the political risks as manageable. But some ardently pro-US pundits worry that the political risks of the BRI are too high. They cast doubt on the feasibility of implementing the BRI, and warn that although it has been portrayed primarily in economic terms, it actually reveals a crucial Chinese geopolitical strategy. They are fearful of China's growing regional dominance, and worried that the BRI is ultimately a means to supplant the prevailing US-led regional security structure and restore the Middle Kingdom order, with China as the only power that matters in the region. According to this view, once China has complete control of the regional logistics hubs and sea ports, this will severely limit the autonomy of China's neighbors, including South Korea, who will have to toe the Chinese line, both economically and politically, or risk their own peace and prosperity.

Analysis of Design Preference to Korean and Chinese Casual Style by Chinese Female Students in Korea (중국 여자 유학생의 중국·한국 간 캐주얼스타일에 대한 디자인 선호도 비교분석)

  • Li, Yi Fan;Park, Miryung
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.3
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    • pp.73-84
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    • 2015
  • Analysis of design preference to Korean and Chinese casual style were made targeting Chinese female students in Korea. The following conclusion was derived from the result of final 300-copy survey data, using SPSS 18.0 program. The data were analyzed by frequency, t-test, chi-squre independence test, ANOVA and Scheffe test. Firstly, when comparing change of design preference before the stay in Korea with after the stay in Korea, the biggest change in their preference was character casual style, while the least change was easy casual wear. In terms of duration of stay in Korea, the biggest change was from the group of over 3 years, and in the order of the group of 1-3years, and then lastly less than 1 year, which suggests that the longer the duration of stay, the bigger the change. When comparing preferred clothing color before the stay in Korea with after the stay in Korea, both before and after the stay in Korea had the highest preference for achromatic colors. The frequency of change was mostly from achromatic color to other colors. In the preferred clothing pattern, 'plain' was their favorite one before the stay in Korea, while it turned to 'nature pattern' after the stay in Korea, followed by 'plain' one. In the textiles, the most preferred one was 'cotton', before and after the stay in Korea. However, their preference for cotton was lower after their stay in Korea than before the stay in Korea, and instead there was more preference for 'silk', 'synthetic fiber', and 'other' sources.

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Quantitative Analysis of 1-Deoxynojirimycin Content Using Silkworm Genetic Resources

  • Ju, Wan-Taek;Kim, Kee-Young;Sung, Gyoo-Byung;Kim, Yong-Soon
    • International Journal of Industrial Entomology and Biomaterials
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    • v.29 no.2
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    • pp.162-168
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    • 2014
  • 1-Deoxynojirimycin(1-DNJ or DNJ), a component in silkworm powder, prevents glucose from being absorbed into the bloodstream from the small intestine by inhibiting ${\alpha}$-glucosidase activity. This study compared the functional components of 1-DNJ from various silkworm species using a gene database with those of 1-DNJ produced by silkworms bred through cross-combinations. We utilized comparisons of geographical origins and species of silkworms using a gene database and discovered that 1-DNJ activity was ranked in the following order by species, Japanese (SK-1) > Chinese (C48) > European (Rock191). 1-DNJ constituted varying percentages of silkworm organs in the following order, blood > epithelial tissue > body fat > silk glands. With regard to sex, 1-DNJ, levels were higher in males than females. However, 1-DNJ levels with respect to various genetic traits (blood color, silk color, and egg color) were consistent. In order to study 1-DNJ changes that occurred during cross breeding of the silkworm gene, we bred cross-combinations utilizing SK-1 and C48 silkworms. In conclusion, in order to provide information about the constituents of functional materials contained in silkworm powder, it is imperative that silkworm cross breeding occurs so that the database of functional materials extracted from silkworms will expand.

Establishment of Dyeing Data for Silk Fabrics and Cells Using Diospyros kaki Thunb (감나무 열매를 이용한 실크 및 세포에 대한 염색 데이터 확립)

  • Suk-Yul Jung
    • Journal of Internet of Things and Convergence
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    • v.9 no.3
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    • pp.27-33
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    • 2023
  • In this study, it was analyzed with the dyeing pattern of Diospyros kaki Thunb (persimmon) and was tried to numerically evaluate how the dyeing pattern in silk fabrics and cells was changed by different mordants. When the dyed silk fabrics were sufficiently dried, the silk fabrics were found to have a pale yellow color. Interestingly, iron II sulfate mordant changed the color change the most, silk fabrics were dyed with a color close to brown or dark purple. For numerical analysis, 19% and 62.5% color changes could be induced by sodium tartrate plus citric acid and copper acetate, respectively. Iron II sulfate induced the greatest difference than that of untreated mordants at 88%. About 5% and 10% of Chinese hamster ovary (CHO) cells were stained by sodium tartrate plus citric acid and copper acetate, respectively. The staining effect induced by iron II sulfate was about 2.4 times higher than the staining effect by sodium tartrate plus citric acid. In previous studies, staining results have been visually confirmed. However, this results not only visually confirmed the dyeing, but also quantified the color change. In particular, if numerical results are continuously integrated into big data, any researcher will be able to easily obtain similar results even if the method, time, volume, etc. are changed. In addition, the numerical data of this study is considered to be an important basis for building a database for IoT construction and computer analysis.

Fashion-cultural Products Design Development Based on the Lian Pu of Chinese Beijing Opera: Focused on Chinese Four Major Novels of Wonder (중국 경극 검보를 활용한 패션문화상품 디자인개발: 중국의 사대기서를 중심으로)

  • Zho, Xu;Kim, Jiyoung
    • Journal of Fashion Business
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    • v.19 no.2
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    • pp.53-68
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    • 2015
  • The Beijing Opera is one of the leading representatives of Chinese culture, which includes literature, music, dance, martial arts, and a type of performance that stems from the Chinese cultural history that is still relevant today. The purpose of this study is to develop fashion-cultural products from the Lian Pu of the Beijing Opera, a Chinese cultural tradition that receives abundant positive feedback from around the world, showing its value in both academic and practical fields. This study was carried out first as a theoretical study of the literature, definition and types of facial make up used in the Opera, as a way of examining the formative aspect. Secondly, an analysis was conducted on the main characters, 'Guan Yu' and 'Zhang Fei' of "The Romance of the Three Kingdoms", 'Li Kiu' and 'Lu Zhishen' of "All Men are Brothers" and 'Monkey King' of "Journey to West", employing the collection belonging to 'Yongqi Zhao' who is an expert on the Chinese Beijing Opera. Thirdly, two concepts were categorized, based on the analytic results of the abovementioned characters, each of which were then further categorized into three sub concepts. In regard to cultural development designs, the results of an analysis on the facial make-up color, form, and texture of the four main characters were utilized to construct the themes, "Modern Chic" and "Traditional Splendor". The simplest form that has been represented in the four figures has been applied to "Modern Chic" to show a modern image in which black, white and light blue has been used alongside the vivid red, which is a Chinese favorite, to highlight the characters. In "Traditional Splendor", which is focused on the stage art of the Opera, we see more artistic traditions and colors, to further appeal to our emotions. Traditional motifs have been applied using traditional Chinese arts, in order to develop strong and brilliant colors. The two styles of cultural products were developed in the form of women's scarves and men's ties; a total of 24 designs were expressed, using Illustrator CS6. In the final step, 4 scarves and 6 ties were produced as a sample, using high quality silk. The development of these cultural fashion products will bring an opportunity to show how Chinese traditional culture can be widely utilized in commercial market design.

Molecular Cloning of a Profilin cDNA from Bombyx mori

  • Wei, Yadong;Gui, Zhongzheng;Choi, Young Soo;Guo, Xijie;Zhang, Guozheng;Sohn, Hung Dae;Jin, Byung Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.9 no.1
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    • pp.123-126
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    • 2004
  • The actin-binding protein profilin cDNA was firstly isolated from the lepidopteran insect, silkworm Bombyx mori. The B. mori profilin cDNA contains an open reading frame of 378 bp encoding 126 amino acid residues and possesses three cysteine residues. The deduced amino acid sequence of the B. mori profilin cDNA showed 80% identity to Apis mellifera profilin and 72% to Drosophila melanogaster profilin. Northern blot analysis showed that B. mori profilin is highly expressed in epidermis and less strongly in silk gland. In addition, Northern blot analysis revealed the presence of B. mori profilin transcripts in all tissues examined, suggesting that B. mori profilin gene is expressed in most, if not all, body tissues.