• Title/Summary/Keyword: Chinese science

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A study on the Chinese characters originated in Japanese industrial standard (JIS * 0212) (일본공업규격 '정보교환용한자부호-보조한자'에 포함된 일본한자에 대한 연구)

  • 이춘택
    • Journal of Korean Library and Information Science Society
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    • v.19
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    • pp.59-81
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    • 1992
  • This study investigates Japanese-made Chinese Characters in JIS X 0212-1990(Code of the Su n.0, pplementary Japanese Graphic Character Set for Information Interchange). As a results of detailed investigation, it is found that the number of Japanese-made Chinese Characters in su n.0, pplementary set reaches to 69 characters. Among them, 29 characters are not listed even in the best known chinese character dictionary [대한화사전]. 30 characters are found in the chinese character dictionaries published in Korea, while 39 characters are not found in any of those dictionaries. The distinctive characteristic of Japanese-made Chinese characters is that those chinese characters are made in order to name the things, such as fishes, birds, trees, which do not have Chinese-made Chinese Characters.

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Analysis of Influence on Students' Chemistry Concepts Understanding by Chinese Chemistry Terminology in 7th Grade Science Textbooks (중학교 과학교과서의 한자 화학용어가 학생들의 화학개념 이해도에 미치는 영향 분석)

  • Jang, Nak Han;Lyu, Jae-Wook
    • Journal of Science Education
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    • v.33 no.2
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    • pp.346-352
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    • 2009
  • The purpose of this research was to analyze the chinese chemistry terminology in chemistry unit of 7th grade science textbooks in 7th curriculum and find relationship between student understanding and difficulty index for chinese preferred students and non-chinese preferred students. The chinese terminology in 7th curriculum was reduced less than that of 6th curriculum but still was over 70%. Students had difficulties in understanding of abstract terminologies and science terms but thought easily the concrete, common terminologies. The tendency of student understanding was similar to that of difficulty index. For chinese chemistry terminology, understanding of chinese preferred students was higher than that of non-chinese preferred students. For easily translated chemistry terminology, there was no significant difference but both were showed the improved understanding. Therefore student understanding should be improved in science if science textbooks would be written by easily translated chemistry terminology.

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Brining Property and Antimutagenic Effects of Organic Chinese Cabbage Kimchi

  • Park, Woon-Young;Park, Kun-Young
    • Preventive Nutrition and Food Science
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    • v.3 no.3
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    • pp.287-291
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    • 1998
  • Brining property and antimutagenic effects of organically cultivaged Chinese cabbage kimchi (OC kimchi) and common Chinese cabbage imchi (CC kimchi) were studied. The salt absorption rate of leaves was faster than that of stems of the Chinese cabbages. Due to the large portion of leaf in organic Chinese cabbage, organic Chinese cabbage(OC) was much faster in terms of salt absorption rate than common Chinese cabbage(CC). The antimutagenic effects of methanol extracts of CC kimchi and OC kimchi were studied against aflatoxin B1(AFB1) using Ames test on Samonella typhimurium TA 100 and N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) using SOS chromotest. Methanol extract from 6 -day fermented OC kimchi at 15 $^{\circ}C$ showed 80% inhibition rate against the indirect mutage, aflatoxin B1 induced mutagenicit where as that from 6-day fermented CC kimchi at 15 $^{\circ}C$ showed 54% inhibition rate in the Ames test. Methanol extracts from 6-day fermented CC kimchi and OC kimchi showed 27 % and 58 % inhibition rate against direct mutagen , N-methyl-N'-nitro-N-nitrosoguanidine induced mutagenicity, respectively in SOS chormotest, thus OC kimchi exhibited higher antimutagenic activity than kimchi.

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Microbiota Analysis and Microbiological Hazard Assessment in Chinese Chive (Allium tuberosum Rottler) Depending on Retail Types

  • Seo, Dong Woo;Yum, Su-jin;Lee, Heoun Reoul;Kim, Seung Min;Jeong, Hee Gon
    • Journal of Microbiology and Biotechnology
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    • v.32 no.2
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    • pp.195-204
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    • 2022
  • Chinese chive (Allium tuberosum Rottler) has potential risks associated with pathogenic bacterial contamination as it is usually consumed raw. In this study, we investigated the microbiota of Chinese chives purchased from traditional markets and grocery stores in March (Spring) and June (Summer) 2017. Differences in bacterial diversity were observed, and the microbial composition varied across sampling times and sites. In June, potential pathogenic genera, such as Escherichia, Enterobacter, and Pantoea, accounted for a high proportion of the microbiota in samples purchased from the traditional market. A large number of pathogenic bacteria (Acinetobacter lwoffii, Bacillus cereus, Klebsiella pneumoniae, and Serratia marcescens) were detected in the June samples at a relatively high rate. In addition, the influence of the washing treatment on Chinese chive microbiota was analyzed. After storage at 26℃, the washing treatment accelerated the growth of enterohemorrhagic Escherichia coli (EHEC) because it caused dynamic shifts in Chinese chive indigenous microbiota. These results expand our knowledge of the microbiota in Chinese chives and provide data for the prediction and prevention of food-borne illnesses.

A Questionnaire Study on the Differences in Preference of Eyewear between Korean and Chinese Consumers (한국과 중국 소비자의 안경의 선호도 차이에 대한 설문 조사 연구)

  • Sung, Jae Hyun;Cho, Eun Jin;Kim, Dal-Young
    • The Korean Journal of Vision Science
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    • v.20 no.4
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    • pp.393-401
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    • 2018
  • Purpose : This survey aimed to investigate the differences in shape and color preference of eyeglasses and sunglasses between Korean and Chinese consumers. Methods : The questionnaire was conducted on 150 Chinese students studying in Korea and 150 Korean college students. Any student who majors in optometry was excluded. Chinese students were provided with questionnaires that were translated into Simplified Chinese characters, and it was translated by a native Chinese student studying in a master course of a Korean university, on the basis of Korean questionnaire. Results : The Chinese consumer group preferred the global famous brand in sunglasses rather than the glasses, and it was found that they preferred the Korean glasses products relatively. Also, they presented higher preference to half- or rimless frame, gold color, two-tone colored lens, comparing to the Korean consumer group. Conclusion : The results of this study are expected to contribute to Chinese marketing strategy of Korean manufacturing optical shop companies, and to sales strategy of Korean optical shops with Chinese tourists.

Determination of Chromium(VI) and Copper(II) in Organic Solvent - Solution by Liquid Core Optical Fiber Spectrophotometry

  • Wang, JuFang;Fen, Minzhao;Wei, Wang;He, Qushe;Wu, Guanyan
    • Analytical Science and Technology
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    • v.8 no.4
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    • pp.457-460
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    • 1995
  • A new hollow fiber filled with the lower refractive index liquid as core constructs a liquid core optical fiber(LCOF). The LCOF have been used as colorimetric cell to determine elements Cr and Cu in the presence of 70%- 50% ethanol or 50% dioxane aqueous solution, based on colored complex of Chromium(VI) with Diphenycarbazid(DPC) and copper with Chromaurd S(CAS) respectively. The sensitivity (1/ng/ml) of calibration curve of Cr and Cu are 0.052, 0.017 over the range 0 - 25, 0 - 24(ng/ml) respectively. The Cr in the animal gum and Nation Standard of China are determined with recoveries of 94 - 102%.

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