• Title/Summary/Keyword: Chinese science

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Research on The Development Strategy of Chinese Cross-Border E-Commerce SMEs under the Background of COVID-19

  • Shulei BI
    • Journal of Distribution Science
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    • v.21 no.10
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    • pp.1-9
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    • 2023
  • Purpose: This study analyses the current development of cross-border e-commerce in China, outlines the challenges faced by Chinese cross-border e-commerce SMEs, and finally summarises the development strategies of Chinese cross-border e-commerce SMEs in the post-covid-19 era, which will provide opinion references for the development of Chinese cross-border e-commerce SMEs. Research design, data and methodology: The methodology used in this study is to analyse the current situation of cross-border e-commerce development in China in the context of covid-19 through literature; and to summarise the challenges encountered by Chinese cross-border e-commerce SMEs through semi-structured interviews. Results: The article summarises the current status of China's cross-border e-commerce development in the context of covid-19 in terms of cross-border e-commerce trade volume, cross-border e-commerce enterprise and user scale, cross-border e-commerce logistics, cross-border e-commerce global co-operation, government policy, and cross-border e-commerce product distribution, outlining challenges encountered by China's cross-border e-commerce SMEs in terms of logistic pricing, operating capital chain, product service support, and trade protection The paper Finally, it is pointed out that Chinese cross-border e-commerce SMEs must adopt new strategies to adapt to the new development in the context of covid-19. Conclusions: Specific development strategies are provided for Chinese cross-border e-commerce enterprises and reference suggestions are provided for the post-covid-19 era.

Study on Meteorological Factors affecting Estimation of Chinese Cabbage Yield (배추 생산량 추정에 영향을 미치는 기상요소 연구)

  • Kim, Yong Seok;Shim, Kyo Moon;Jung, Myung Pyo;Choi, In Tae
    • Journal of Climate Change Research
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    • v.6 no.4
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    • pp.277-281
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    • 2015
  • A Chinese cabbage is one of important vegetables which accounts for more than 60 percent of leaf vegetable. However, cultivation area and yield of Chinese cabbage are steadily decreasing recently. Because meteorological changes destabilize the balance of Chinese cabbage, we need to study on meteorological factors affecting estimation of Chinese cabbage yield. So we conducted a panel analysis using mean temperature, maximum temperature, minimum temperature, precipitation and sunshine's duration from August to November for estimation of Chinese cabbage yield. As the results, we found that if the mean temperature of September increase by $1^{\circ}C$ the amount of production of Chinese cabbage per unit area was increased by 348.6 kg/10a. We also found that the mean temperature of October increased by 174.8 kg/10a, that of November 148 kg/10a, the difference between the maxium temperature and the minimum temperature of October equals 443.3 kg/10a. However, we found that the difference between the maximum temperature and the minimum temperature of November decreased 274.1 kg/10a.

Genetic Variation and Genetic Relationship of Seventeen Chinese Indigenous Pig Breeds Using Ten Serum Protein Loci

  • Mo, D.L.;Liu, B.;Wang, Z.G.;Zhao, S.H.;Yu, M.;Fan, B.;Li, M.H.;Yang, S.L.;Zhang, G.X.;Xiong, T.A.;Li, K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.7
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    • pp.939-945
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    • 2003
  • Seventeen Chinese indigenous pig breeds and three introduced pig breeds had been carried out by means of vertical polyacrylamide gel electrophoresis (PAGE). According to the results, eight serum protein loci were highly polymorphic except Pi-2 and Cp. The polymorphism information content (PIC) of Hpx was the highest (0.5268), while that of Cp was the lowest (0.0257). The population genetic variation index showed that about 84% genetic variation existed in the population, and the rest of 16% distributed between the populations. The genetic variation of Yimeng black pig and Duroc were the highest and the lowest, respectively. The genetic variation of Chinese indigenous pig breeds was much more than that of exotic groups. Genetic distance results showed that Chinese indigenous pig breeds were classified into four groups with the three introduced pig breeds clustered into another group. The results also supported the geographic distribution of Chinese indigenous pig breeds in certain extent.

Effect of Ozone Treatment for Sanitation of Chinese Cabbage and Salted Chinese Cabbage (배추 및 절임배추의 위생화를 위한 오존살균기술의 이용)

  • Lee, Kyong-Haeng
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.1
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    • pp.90-96
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    • 2008
  • To retain the fresh taste and flavor of Kimchi, ozone treatment was applied for kimchi food materials. In this study, Chinese cabbage and salted Chinese cabbage, the highest portion of Kimchi materials, were treated by ozone ($3{\sim}9$ ppm) and their microbiological and chemical characteristics were investigated. Initial number of total aerobic bacteria of Chinese cabbage and salted Chinese cabbage were $1.3{\sim}10^7$ and $7.1{\sim}10^6$ CFU/g, respectively. However, when ozone was treated, the number was decreased and this decrease of bacterial number was maintained during storage. Yeast and mold populations were $6.0{\times}10^3$ and $1.2{\times}10^3$ CFU/g in Chinese cabbage and salted Chinese cabbage, respectively; however, an ozone treatment also decreased the yeast and mold populations. Other physical and chemical characteristics of ozone treated sample such as color, hardness, contents of ascorbic acid and reducing sugar of Chinese cabbage and salted Chinese cabbage were not different when compared with control.

Exploration of Chinese-Korean Cooperative Multimedia Design Education

  • Jiang, Zheng-Qing;Lee, Dong-Hun
    • International Journal of Contents
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    • v.5 no.4
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    • pp.69-74
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    • 2009
  • This paper has done a study of Chinese-Korean cooperative multimedia design education. Sino-Korean school of multimedia was set up by Shanghai University of Engineering Science (SUES) and Korea Dongseo University in October 2002. We have created "3.5+0.5 Teaching Model". In this model, Chinese and Korea professors take courses together. Firstly, paper points our the Chinese government policy background of Chinese-Foreign Cooperation in running schools and the development of Chinese-Korean cooperative multimedia design education in SUES. Secondly, by analyzing the multimedia design industry to understand the Chinese multi-media design education. Thirdly, paper made in-depth studies for "3.5+0.5 Teaching Model" so as to draw the experience of successes and problems. Through analysis of "Questionnaires for students' learning and living conditions in Dongseo University in 2009" by spss 16.0, paper made a research of mode of "A semester studying in Korea". Finally, paper points out the development direction of Chinese-Korean cooperative multimedia design.

A Comparative Study on Health Lifestyle Behaviors among Chinese, Korean Chinese and Koreans (중국 연변지역의 한족, 조선족과 한국인의 건강행태 비교 연구)

  • Lee Sun-Dong;Choi Chan-Ho;Chang Kyung-Ho;Shin Heon-Tae
    • Journal of Society of Preventive Korean Medicine
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    • v.7 no.1
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    • pp.67-77
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    • 2003
  • This study is to compare health related behaviors among Chinese, Korean Chinese in a Yanbian Province with a population of mainly Korean descendents and Koreans in Kangwon Province, Korea. Cross-sectional surveys were used to identify self-rated health, smoking, alcohol use, exercise and other lifestyle variables. A total of 739 Chinese, 663 Korean Chines, and 639 Koreans were surveyed using self-administered questionnaires. Few Korean Chinese(13.9%) reported they were healthy compared with Chinese(38.7%) and Koreans(36.3%). There was no difference in the prevalence of smoking by ethnic groups. More Koreans(48.5%) and Chinese Koreans(44.5%) reported drinking alcohol compared with Chinese(37.2%)(p < .001). Compared Chinese and Korean Chinese, fewer Koreans reported regular diet, exercise, health screening, and deep sleeping patterns. The lifestyle variables that affect the prevalence of disease were different by ethnic groups. In conclusion, ethnicity was shown to be an independent factor in relation to self-rated health, alcohol use, and other health lifestyle behaviors.

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Enhanced Tolerance of Chinese Cabbage Seedlings Mediated by Bacillus aryabhattai H26-2 and B. siamensis H30-3 against High Temperature Stress and Fungal Infections

  • Lee, Young Hee;Jang, Su Jeong;Han, Joon-Hee;Bae, Jin Su;Shin, Hyunsuk;Park, Hee Jin;Sang, Mee Kyung;Han, Song Hee;Kim, Kyoung Su;Han, Sang-Wook;Hong, Jeum Kyu
    • The Plant Pathology Journal
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    • v.34 no.6
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    • pp.555-566
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    • 2018
  • Two rhizobacteria Bacillus aryabhattai H26-2 and B. siamensis H30-3 were evaluated whether they are involved in stress tolerance against drought and high temperature as well as fungal infections in Chinese cabbage plants. Chinese cabbage seedlings cv. Ryeokgwang (spring cultivar) has shown better growth compared to cv. Buram-3-ho (autumn cultivar) under high temperature conditions in a greenhouse, whilst there was no difference in drought stress tolerance of the two cultivars. In vitro growth of B. aryabhattai H26-2 and B. siamensis H30-3 were differentially regulated under PEG 6000-induced drought stress at different growing temperatures (30, 40 and $50^{\circ}C$). Pretreatment with B. aryabhattai H26-2 and B. siamensis H30-3 enhanced the tolerance of Chinese cabbage seedlings to high temperature, but not to drought stress. It turns out that only B. siamensis H30-3 showed in vitro antifungal activities and in planta crop protection against two fungal pathogens Alternaria brassicicola and Colletotrichum higginsianum causing black spots and anthracnose on Chinese cabbage plants cv. Ryeokgwang, respectively. B. siamensis H30-3 brings several genes involved in production of cyclic lipopeptides in its genome and secreted hydrolytic enzymes like chitinase, protease and cellulase. B. siamensis H30-3 was found to produce siderophore, a high affinity iron-chelating compound. Expressions of BrChi1 and BrGST1 genes were up-regulated in Chinese cabbage leaves by B. siamensis H30-3. These findings suggest that integration of B. aryabhattai H26-2 and B. siamensis H30-3 in Chinese cabbage production system may increase productivity through improved plant growth under high temperature and crop protection against fungal pathogens.

Development of a dual-mode energy-resolved neutron imaging detector: High spatial resolution and large field of view

  • Wenqin Yang;Jianrong Zhou;Jianqing Yang;Xingfen Jiang;Jinhao Tan;Lin Zhu;Xiaojuan Zhou;Yuanguang Xia;Li Yu;Xiuku Wang;Haiyun Teng;Jiajie Li;Yongxiang Qiu;Peixun Shen;Songlin Wang;Yadong Wei;Yushou Song;Jian Zhuang;Yubin Zhao;Junrong Zhang;Zhijia Sun;Yuanbo Chen
    • Nuclear Engineering and Technology
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    • v.56 no.7
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    • pp.2799-2805
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    • 2024
  • Energy-resolved neutron imaging is an effective way to investigate the internal structure and residual stress of materials. Different sample sizes have varying requirements for the detector's imaging field of view (FOV) and spatial resolution. Therefore, a dual-mode energy-resolved neutron imaging detector was developed, which mainly consisted of a neutron scintillator screen, a mirror, imaging lenses, and a time-stamping optical fast camera. This detector could operate in a large FOV mode or a high spatial resolution mode. To evaluate the performance of the detector, the neutron wavelength spectra and the multiple spatial resolution tests were conducted at CSNS. The results demonstrated that the detector accurately measured the neutron wavelength spectra selected by a bandwidth chopper. The best spatial resolution was about 20 ㎛ in high spatial resolution mode after event reconstruction, and a FOV of 45.0 mm × 45.0 mm was obtained in large FOV mode. The feasibility was validated to change the spatial resolution and FOV by replacing the scintillator screen and adjusting the lens magnification.

The Analysis on the Illustrations of the Chinese Elementary Science Textbooks (중국 초등학교 과학교과서의 삽화 분석)

  • Lee, Hyeong-Cheol
    • Journal of the Korean Society of Earth Science Education
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    • v.3 no.1
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    • pp.55-64
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    • 2010
  • This study was intended to survey and analyze the illustrations of Chinese elementary science textbooks. The analysis criterion was composed of two categories, the kind of illustration and the role of illustration. The kind of illustration was divided into six subcategories categories such as photograph, picture, illustration, cartoon, diagram and recording sheet. The role of illustration was divided into four subcategories such as motive induction, guidance for learning, the supply of learning material, the presentation of learning result. The findings of this study were as follows. Chinese elementary science textbooks have about 3.55 illustrations per page. Compared with Korean ones, Chinese ones have more illustrations. From the analysis of the kinds of the illustrations on grade basis, it was found that the order of percentage of illustrations of Chinese elementary science textbooks is photograph, cartoon et al.. Photograph is prominent in entire grade. And From the analysis of the kinds of the illustrations on domain basis, the same results was founded. From the analysis of the roles of the illustrations on grade basis showed that both supply of learning material and guidance for learning are dominant in entire grade. The role of supply of learning material is a little more major than that of guidance for learning. From the analysis of the roles of the illustrations on domain basis, it was found that in domain of physics and chemistry the role of guidance for learning is major, and in domain of biology and earth science the role of supply of learning material is major.

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Health Literacy and Its Associated Factors in Korean-Chinese and Other Asian Immigrant Women in Korea (조선족과 다른 출신국 여성결혼이민자의 건강문해력과 영향 요인 비교)

  • Yang, Sook Ja;Chee, Yeon Kyung;An, Jisook;Park, Min Hee;Jung, Sunok
    • Journal of Korean Public Health Nursing
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    • v.28 no.2
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    • pp.211-227
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    • 2014
  • Purpose: The purpose of this study was to compare health literacy levels of Asian immigrant women and factors associated with health literacy focusing on Korean-Chinese and other Asian immigrants in Korea. Methods: Data were drawn from 258 immigrant women, comprising 56 Korean-Chinese and 202 other immigrants from the Philippines, Vietnam, Japan, Cambodia, Thailand, Uzbekistan, Taiwan, and Han-Chinese. The Rapid Estimate of Adult Literacy in Medicine - Short Form (REALM-SF) was used to assess health literacy, which consisted of seven medical words in Korean (behavior, exercise, menopause, rectal, antibiotics, anemia, and jaundice). Data analysis was performed using descriptive statistics, t-test, ANOVA with $Sch{\acute{e}}ffe$ post hoc test, and hierarchical regression. Results: Korean-Chinese women showed significantly higher levels of health literacy ($M=6.41{\pm}1.07$), compared to their other immigrant counterparts ($M=4.55{\pm}2.15$). While Korean-Chinese women with longer time since immigration (p=.048) reported higher health literacy, for other immigrants, those living with children (p<.001), longer time since immigration (p=.011), and greater Korean language proficiency (p=.004) showed an association with higher health literacy. Conclusion: When providing health care services and health education, health care professionals should consider differences in levels of health literacy and factors associated with health literacy among Korean Chinese and other immigrants.