• Title/Summary/Keyword: 개자(改字)

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피휘(避諱)의 유래와 종류, 방법에 관한 고찰 - 관우피휘지유래종류화방법적연구(關于避諱之由來種類和方法的硏究)

  • Yun, Chang-Yeol
    • Journal of Korean Medical classics
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    • v.22 no.2
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    • pp.127-137
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    • 2009
  • 通過對避諱的由來, 種類和方法進行硏究和考察, 得到了如下之結論. 古人認爲人的名字乃自身之代表, 本身就具尊嚴性, 所以古來既有不輕易呼喚名字, 並尊崇名字的風俗, 而在行冠禮之後, 則取字以替代其名, 這都與實名敬避和尊名的風俗有所關系. 早期的避諱, 以對生者不隨便呼叫其名的"不名"和對死者不輕易稱呼其名的死諱爲主, 這些都源於樸素的尊敬與恭敬. 生諱始自秦始皇之時, 初期僅限於對天子和諸侯的名字進行避諱, 而對嫌名则未曾進行避諱. 避諱的種類, 包括出於恭敬而避諱的敬諱, 出於心理排斥而避諱的忌諱, 以及出於憎惡和討厭而避諱的憎諱, 但總以敬諱爲其主幹. 至於避諱的方法, 主要有改字, 改稱, 空字, 作某, 標諱, 缺字, 缺筆(缺劃)和更讀等法. 在我國, 避諱究竟始於哪一时代目前难以確認, 但在新羅時代的金石文中, 可以看到不少有關避諱與缺筆的例子, 在高麗時代則對帝王的名字通過改字或缺筆來进行了避諱, 朝鮮時代則爲了排除避諱的弊端, 對王族的名字取以生僻之字, 使避諱所致的弊端大为減少.

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무부하운전시의 철극동기기의 3상단락

  • 이면영
    • 전기의세계
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    • v.10
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    • pp.55-61
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    • 1963
  • 본 논문에서 취급한 제동권선이 없는 철극선의 3상단락현상을 해명하는데 있어 우선 임의력율의 전류를 횡축분과 직축분으로 분리해서 취급하는 소위 Blonde의 2반작용법(two reaction method)를 썼고, 각종 Reactance를 표시하는데는 편리한 단위법(perunit notation)을 사용했으며, 전기자의 1상저항은 각종 Reactance ( $X_{x}$, $X_{q}$ )의 어느것 보담도 극소치임으로 실제계산에는 무시했으나 과도전류의 변화를 좌우하는 감쇠정수[decrement factor)에는 큰 영향을 준다는 것이 규명되었다. 해석결과로서 3상단락전류의 초기치는 특수치보다 훨씬 큰 이유로서 단락전류가 계자자속을 약하게 만들어 그 반동으로 계자회로에 일정자속을 유지하기 위하여 부문적으로 개자전류가 증대함을 알게되었고, 단락전류의 직축분과 횡축분의 구성분이 규명검토되었고, 발전기의 돌발단락저류는 일반적으로 직류분, 기본파교류분 및 제2조파등을 포함하나 그 전부가 시정수의 역수인 감쇠정수에 지배되어서 지수함수곡선에 따라 감쇠되어 결국에는 지속단락전류에 귀착한다는 사실과 3상단락은 평형단락사고임으로 영상전류는 영이며 각상과도전류의 위상차가 120.deg.라는 것엔 변함이 없다는 것과 끝으로 철극기를 정격속도로 운전해 놓고 이것을 여자해서 무부하전압을 수기시켜 그의 3상전단자를 돌연 단락해서 그의 과도전류의 파형을 Oscillograph로 촬영하면 본론에서 해석한 결과식의 그것과 일치하게 됨을 알 수 있을 것이다.것이다.

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Physico-ecological Studies on Korean Seed-mustard I. Effects of Varieties and Seeding Date on the Variation of Agronomic Traits (한국산 개자(Brassica juncea)의 재배학적 특성연구 I. 수집품종의 특성 및 파종기 차이에 따른 주요형질의 변이)

  • 이종일;이상래;최형국;권병선
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.30 no.2
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    • pp.146-153
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    • 1985
  • To investigate the possibility of improvement of seed mustard varieties, these experiments were conducted at Muan in Chonranamdo for three years with five local seed mustard varieties and seeding dates. Local varieties collected from Seoul, Cheju and introduced from Japan showed earlier bolting date while Yungsanpo and Suweon varieties bolted later and Suweon variety exhibited the latest maturity. Suweon variety had the shortest plant height with higher number of grains per pod. Seoul and Yungsanpo varieties had more total branch numbers than others. There was no varietal difference in grain weight, pod length and one liter weight. Grain yield per 10a was highest in Seoul variety by 247.5kg. Late seeding date delayed the bolting and flowering date while plant height, total branch numbers, pod numbers per ear and grain number per pod were decreased. The magnitude of varietal response to seeding date was varied greatly with traits. Grain weights per liter, 1,000 grain weight, pod lengths, oil contents, and fatty acid compositions were not affected by the different seeding dates.

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Plant Regeneration from Somatic Embryo with Structural Diversity from Leaf Explant Culture of Ostericum koreanum Kitagawa (강활(Ostericum koreanum Kitagawa)의 잎절편체 배양으로 부터 발생된 여러가지 형태의 체세포배를 통한 식물체 재생)

  • 조덕이;소웅영
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.1
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    • pp.51-56
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    • 1998
  • This study was carried out in order to establish plant regeneration via somatic embryogenesis from leaf explant of Ostericum koreanum Kitagawa and to elucidate the effects of NAA and cytokinins (kinetin, BA) on the abnormalities of somatic embryo and the relationship between thecotyledon numberand germinability. Calli were formed on leaf explants cultured on MS agar medium supplemented with various concentrations (0, 0.1, 0.5, 1, 2 mg/L) of NAA and cytokinins. The calli were white, watery and soft, became browning during cultures. Somatic embryos were formed from pale yellowish calli derived browning calli. High frequency somatic embryos were observed on MS medium containing 1 mg/L NAA and 0.1 mg/L BA after 60 days of culture. The mature somatic embryos germinated into plantlets without subculture after 2 weeks. The frequency of normal somatic embryo with two cotyledons was 39.8%. On the other hand, cotyledonary abnormalities of somatic embryos were observed at considerable frequency: 33.6% of somatic embryo with one cotyledon, 15.3% cotyledons with three, 8.2% four cotyledons and 3.1% jar shaped cotyledon. Germination frequency of somatic embryos with two cotyledons was 97.4%, and that of the embryos with abnormal cotyledon was almost similar to that of embryos with two cotyledons, except jar shaped somatic embryos (33.3%).

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Monitoring of Aflatoxins in Medicinal Herbs (유통 생약재의 아플라톡신 모니터링)

  • Kim, Yong-Hoon;Kang, Han-Saem;Oh, Sun-Woo;Lee, Hwa-Jung;Kim, Mi-Gyeong;Chung, So-Young;Choi, Seon-Hee;Bang, Su-Jin;Han, Kyung-Jin;Lee, Ji-Won;Kim, Young-Seon;Kim, Hee-Yun
    • Korean Journal of Food Science and Technology
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    • v.42 no.1
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    • pp.27-32
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    • 2010
  • This study was conducted to monitor aflatoxins in various medicinal herbs, providing available data for the safety of those products. To monitor aflatoxins in medicinal herbs, a total of 400 samples of 40 different herbs were collected in commercial retailers in Seoul, Daejeon, Gwangju, Daegu, and Busan from March to August, 2008. The samples that passed the sensory evaluation were tested for aflatoxins. Aflatoxins in samples were analyzed by HPLC-florescence coupled with photochemical enhancement. Samples were extracted with 70% methanol and then diluted to the appropriate concentration. A refining process was performed using an immunoaffinity column. The analytical method used in this study was validated. The $R^2$ value for aflatoxin $B_1$ was 0.99946, and the detection range was from 0.25 to 10.0 ng/mL. The accuracy of the analysis was ranged from 83.2% to 101.8%. The relative standard deviation (RSD) in the aflatoxin $B_1$ analysis was 3.4%, demonstrating the precision of this method. In addition, the detection limit and quantitative analysis limit of aflatoxin $B_1$ was $0.53\;{\mu}g/kg$ and $1.76\;{\mu}g/kg$, respectively. These results indicated that the analytical method used in this study was appropriate. The results of HPLC showed that 1% (4 samples) of the samples may contain aflatoxins. The concentration of quantified aflatoxin was $2.3\;{\mu}g/kg$ for both Quisqualis fructus and Remotiflori radix samples. The other samples were below the limit of quantification. Moreover, the concentration of aflatoxin $B_1$ which is made by specific fungi were below the level of regulation. Only 20% of aflatoxin $B_1$ were transferred to hot water. Therefore, the levels of aflatoxins in medicinal herbs were considered to be safe especially considering the aflatoxin transfer ratio.