• 제목/요약/키워드: Th

검색결과 28,939건 처리시간 0.055초

A Study on the comparison of shipbuilding technique of Unification Silla.Koryo Dynasty during he 8th and 9th Century

  • Hugh, Ihl;Lee, Chang-Euk
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2000년도 Proceeding of CIN-KIN Joint Symposium 2000 on M.E.T. Under STCW 78/95 and SINO-KOREA MARITIME CONTACT IN MID-CENTURIES
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    • pp.205-218
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    • 2000
  • Hull forms of Jiao Yi Ship for shipping and foreign trade in Silla and Tang Dynasty were transformed and developed in accordance to their voyage and rational routes. The trade ship was a sea ship, used by Chang Po Go's, the Silla great sea merchant ship, in the marine trade with China during the 8th and 9th century. It is not easy to presume the hull type and trade formal of Chang Po Go's Jiao Yi Ship of the 8th and 9th Century. Studying on the ship type of the trade ship is the urgent problem to be solved, in the sphere of leaning about the history of communication between China and Korea. The authors take the initial prove into this subjects, by researching Chang Po Go's marine activities, and point out that the trade ship's original type should be the Sha Ship which was the sea ship sailing th sea in northern China, in the Tang Dynasty. This study aims to present materials concerning hull forms of Chang Po Go's Jian Yi Ship by analysing ancient voyage history, foreign trade history, and ship history of Silla, Tang and Japan during the 8th and 9th century.

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잠용유가 Streptozotocin으로 유발된 흰쥐의 실험적 당뇨에 미치는 영향 (Effects of Jamyong-oil on the Diabetic Rats induced by Streptozotocin)

  • 김장현
    • 대한한방소아과학회지
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    • 제10권1호
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    • pp.221-244
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    • 1996
  • In order to study the effects of Jamyong-oil(蠶?油) on the diabetic rats induced by streptozotocin, during 15days rats were administered Jamyong-oil after streptozotocin injection(50mg/kg). On 2nd, 9th and 15th day, I investigated the levels of serum glucose, serum total cholesterol, serum triglyceride, serum amylase, and body weight. The last day, I killed rats and investigated hepatic lipid peroxide, tissue amylase. The results were obtained as follows: 1. Serum glucose levels of the sample group decreased effectively (p < 0.05) at the 15th day as compared with the control group. 2. Serum total cholesterol levels of the sample group decreased effectively (p < 0.05) at the 9th and 15th day as compared with the control group. 3. Serum triglyceride levels of the sample group decreased effectively (p < 0.05) at the 15th day as compared with the control group. 4. Activities of the serum amylase of the sample group increased respectively at the 9th (p < 0.05) and 15th (p < 0.01) day as compared with the control group. 5. Body weights of the sample group increased effectively (p < 0.05) at the 15th day as compared with the control group. 6. Hepatic lipid peroxide levels of the sample group decreased significantly (p < 0.01) as compared with the control group. 7. Tissue amylase levels of the sample group increased but not effective as compared with the control group.

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Tyrosine Hydroxylase Activity and mRNA in Rat Locus Coeruleus and Adrenals Following Chronic Ethanol Treatment and Acute Cold Stress

  • Lee, Yong-Kyu;Park, Dong-Ha
    • BMB Reports
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    • 제29권5호
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    • pp.393-397
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    • 1996
  • Sprague-Dawley male rats (150 g) were chronically treated with 5 v/v % ethanol admixed with nutritionally complete liquid diet and fed ad libitum for 3 weeks. Controls were pair fed with the isocaloric sucrose liquid diet. One half of each group was exposed to cold stress at $4^{\circ}C$ either for 24 h (for determination of mRNA by in situ hybridization) or for 48 h (for determination of enzyme activity). Chronic ethanol treatment (ethanol) did not affect tyrosine hydroxylase (TH) mRNA level in locus coeruleus (LC) of brain and adrenal medulla (AM) compared to controls. Cold stress showed strong increase of TH mRNA level in LC and AM compared to controls. Pretreated ethanol reduced the increased TH mRNA level by cold stress in LC and AM. Ethanol did not affect TH activity in LC and adrenal glands (adrenals). Cold stress increased TH activity in LC but not in adrenals. Pretreated ethanol did not reduce the increased TH activity by cold stress in LC but this result was not shown in adrenals. It is suggested that ethanol does not affect the message level and enzyme protein level for TH in LC and AM in normal rat. It is also hypothesized that pretreated ethanol reduces the magnitude of acute cold stress response, that is induction of TH mRNA in LC and AM, and does not reduce the increased TH enzyme protein that is also acute cold stress response in LC.

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유럽에서의 자수의 변천 (Transition of Embroidery in Europe)

  • 이경희
    • 한국의류산업학회지
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    • 제11권2호
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    • pp.231-241
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    • 2009
  • Embroidery is one of the oldest methods of textiles surface decoration. The masterpiece "Tapisserie de Bayeux," is one of the earliest Medieval embroideries. Embroidery was popular on a broad scale with introduction of what was called Opus Anglicanum("English work") in the 13th century. France had been producing sophisticated embroideries since the 16th century. England was the country producing the greatest quantity of embroideries of the best quality in the 17th century. Until the 17th century, the Church was the most important patron of needlework. Then a shift in emphasis occurred towards the domestic embroidery. English 17th century domestic embroidery reached a high point of technical brilliance and charm. In France, embroidery was produced on hangings as well as costume. 18th century interest in embellishing the domestic environment, embroideries became much more finely detailed than those of the 17th century with the use of finer wool and silk threads. French silk were the finest in the world, and their embroidery was arguably equally fine both in furnishing textiles and on costumes. "Art Needlework" was the major movement in embroidery in the late 19th century. The Royal School of Needlework was founded in 1872, followed by similar institutions around Britan. Splendid fashion embroidery of French haut-couture that was represented to Lesage atelier in 20th century.

책임윤리학에 기초한 지구온난화 관련 초등 환경교육 교재 개발 - 초등학교 5, 6학년을 중심으로 - (The Development of the Elementary Environmental Education Textbook Relevant to Global Warming based on Responsibility Ethics - Focused on 5th, 6th Grade Students -)

  • 정하나;지준호;이상원
    • 한국환경교육학회지:환경교육
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    • 제22권3호
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    • pp.31-48
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    • 2009
  • The purpose of this study is to develop the elementary environmental textbook relevant to global warming based on responsibility ethics. To achieve the purpose, concrete study processes are as follows. First, the theory of responsibility ethics of Jonas was analyzed. Second, contents relevant to global warm ing on textbooks and guide books in the 7th elementary curriculum was analyzed through reference study. Third, the environmental textbook relevant to global warming for 5th and 6th grade in the elementary school was developed which was based on responsibility. The results of this study are as follows. First, responsibility ethics of Jonas has a lot of merit if it is applied to environment education. Second, according to the analysis into textbooks and guide books in the 7th elementary curriculum, the contents concerning global warming are very poor in both quantity and quality. Third, the elementary environmental textbook relevant to global warming for 5th and 6th grade students was developed. This textbook based on responsibility ethics will be expected to be efficient on the learning compared with subsidiary textbook in use.

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강우유출수 관리시설의 설계를 위한 강우사상 특성 분석 (Analysis of Storm Event Characteristics for Stormwater Best Management Practices Design)

  • 김학관;지현서;장선숙
    • 한국농공학회논문집
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    • 제59권6호
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    • pp.73-80
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    • 2017
  • The objective of this study is to investigate whether the daily rainfall depth derived from daily data represents the event rainfall depth derived from hourly data. For analysis, the 85th, 90th, and 95th percentile daily rainfall depths were first computed using daily rainfall data (1986~2015) collected at 63 weather stations. In addition, the storm event was separated by the interevent time definition (IETD) of 6, 12, 18, and 24 hr using hourly rainfall data. Based on the separated storm events, the 85th, 90th, and 95th percentile event rainfall depths were calculated and compared with the using hourly rainfall data with the 85th, 90th, and 95th percentile daily rainfall depths. The event rainfall depths computed using the IETD were greater than the daily rainfall depths. The difference between the event rainfall depth and the daily rainfall depth affects the design and size of the facility for controlling the stormwater. Therefore, the designer and policy decision-maker in designing the stormwater best management practices need to take into account the difference generated by the difference of the used rainfall data and the selected IETD.

초등 5~6학년군 과학 교과서에 제시된 탐구 활동 유형 분석 (An Analysis of the Inquiry Activity Types Presented in the 5th & 6th Grade Elementary Science Textbooks)

  • 송신철;심규철
    • 한국초등과학교육학회지:초등과학교육
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    • 제38권4호
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    • pp.453-464
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    • 2019
  • In this study, the types of inquiry activities in the $5^{th}$ & $6^{th}$ grade science textbooks according to the 2015 revised science national curriculum were analyzed and compared according to grade level and science area. Science textbooks for elementary school $5^{th}$ & $6^{th}$ graders contain quite diverse types of inquiry activities, which are student-centered inquiry activities. There were comparatively higher proportions of inquiry types such as experiment & observation and simulation, but relatively lower of inquiry types of investigation-discourse & presentation, discussion, expression. Elementary science textbooks are expected to cultivate science key competencies for elementary school students. Considering the science area, the motion & energy, substances, earth & space, and integration areas had the most experiment & observation among activity types, while the life area had the most simulation activities. Even in some area of the 6th grade science textbook, there was little or no data interpretation, discussion, and simulation activities. In order to achieve the goal of elementary science education, science textbooks should be developed considering the revision of future elementary science curriculum.

대두 품종별 재배기간이 생육특성 , 기호성 및 수량에 미치는 영향 (The Effect of Cultivation Period on Growth Characteristics , Palatability and Forage Yield of Soybean Cultivars)

  • 이상무;구재윤;전병태
    • 한국초지조사료학회지
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    • 제15권2호
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    • pp.132-139
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    • 1995
  • 본 시험은 청예용으로 생산성이 우수한 대두를 선발할 목적으로 우리나라 전역에 재배되고 있는 종실용대두(각 도별 추천품종)10품종의 생육특성, 기호성 및 건물수량을 비교 검토한 것으로 시험은 3년간 (1989~1991) 건국대학교 자연과학대학 부속 사료포장에서 실시하였으며 그 결과를 요약하면 다음과 같다. 초장은 재배기간 70, 80일째는 장백이 90일째는 백장에서 실시하였으며 그 결과를 요약하면 다음과 같다. 초장은 재배기간 70, 80일째는 장백이 90일째는 백우닝 가장 길었으며(P<0.01, 0.05), 전 생육기간동안 생육속도가 가장 빠르고 내 도복성이 가장 강한 품종은 팔달로 나타났다. 경의 굵기는 재배기간에 따라 70일WO는 팔달,황금>백운>광교, 장엽<,80일째는 덕유>백천>장백, 90일째는 방사>백천>장엽순으로 높았다. 경의 경도는 재배기간이 길어짐에 따라 모든 품종이 점점 높아지는 경향을 보였으나 품종간 유의차는 없었으며, 특히 백운과 덕유는 90일째 각각 17.9, 17.6kg/$cm^2$으로 매우 높게 나타났다. 팔달은 시험품종중 곁가지수가 가장 적은 품종으로 나타났으며, 90일째는 12개로서 타 품종에 비하여 2~3배가 낮았다(P<0.05). 엽의 비율에 있어서는 백천이 재배기간에 따라 40m 42m 31%로 가장 높은 품종으로, 장백이 32, 34, 25%로 가장 낮은 품종으로 나타났다. 생초수량은 재배기간이 길어짐에 따라 광교를 제외한 전 품종에서 증가하는 경향을 보였지만 유의차는 인정되지 않았다. 이들의 건물수량은 70, 80, 90일째 각각 장엽, 광교, 덕유가 5,861, 7,471, 10,603 kg/ha으로 가장 높았다. 재배기간 70일째 기호성은 전 품종이 최저 81%에서 100%사이로 품종간 극히 기호성이 떨어지거나 채식하지 않았던 품종은 없었으며, 특히 80m 90일째는 덕유가 가장 높은 기호도를 보였던 반면 팔달이 가장 낮게 나타났다. 조단백질 함량은 70, 80, 90일째 각각 단엽, 장엽, 황금이 20.1, 17.9, 20.4%로 가장 높았으며 (P<0.01, 0.05), 이들의 단백질수량은 전 시험기간동안 장엽이(70일째: 1,068, 80일째: 1,211, 90일째: 1,078kg/ha)가장 낮게 나타났다.

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전자기파 조사 흰쥐 간조직에서의 과산화적 손상 (Peroxidative Damage in Rat Liver Exposed to Microwave)

  • 최정화;신현진;유흠;이준하;이순재
    • 한국식품영양과학회지
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    • 제27권6호
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    • pp.1262-1266
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    • 1998
  • The purpose of this study was to investigate peroxidative damage and antioxidative defense systems such as superoxide dismutase(SOD), glutathione peroxidase(GSH Px), glutathione S transferase (GST) and vitamin E of liver in rat exposed microwave. Sprague Dawley male rats 200$\pm$10gm were randomly assigned to normal and microwave(MW) groups. After rats were irradiated with microwave at frequency of 2.45GHz for 15min, the change patterns of antioxidative defense system and peroxidative damage of liver tissue in MW group were investigated for 16 days(the 2nd, 4th, 6th, 8th and 16th days) compared with those of normal group. The activity of superoxide dismutase(SOD) in MW group was increased at the 2nd day compared with that of normal group, but not significantly. The glutathione peroxidase(GSH Px) in MW group was decreased to 24% and 25% at the 4th and 6th days, respectively, compoared with that of normal group, but GSH Px was increased to level of normal group at the 16th day. The activity of glutathione S transferase(GST) in MW group was decreased at the 2nd day after irradiated with microwave, but GST showed to that of normal group at the 16th day. The content of vitamin E in MW group was lower than that of normal group at the 6th and 8th days after the irradiation, but was recovered to the level of normal group at the 16th days. The content of thi obarbituric acid reactive substances(TBARS) of liver in MW group was increased to 28.9%, 53.8%, 69.7% and 30.2% of normal group at the 2nd, 4th, 6th and 8th days after the irradiation, respectively, but recovered to the level of normal group at the 16th day. The present results indicated that antiox idative defense systems of rats irradiated microwave was weaken more than that of normal group, which lead to acceleration of lipid peroxidation.

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수유부에서 두유 보충이 모유, 혈액 및 뇨 중 Isoflavone 농도에 미치는 영향 (The Effects of Soy Milk Supplement on Isoflavone Concentration of Breast Milk, Plasma and Urine from Breast Feeding Woman)

  • 이현주;장영은;이혜옥;김정숙;김승보;조여원
    • Journal of Nutrition and Health
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    • 제36권7호
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    • pp.736-742
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    • 2003
  • Soybeans have been a major protein source for many centuries in Korea. Soybeans contain phytochemicals which are isoflavones, biochemically active component. Isoflavone is a kind of phytoestrogen, structurally and functionally similar to estrogen. It has been reported that the breast milk and blood of breast feeding mothers who consume soy products contain isoflavones. This study was conducted to investigate the effects of soy milk supplement on the isoflavones (daidzein, genistein) concentration of breast milk, plasma and urine from breast feeding woman. Seventeen healthy women who delivered at Kyung Hee Medical Center were recruited. For the first 2 weeks after delivery, seventeen women ingested 400 ml (isoflavone 43.2 mg) of soy milk on the given time starting from the day of giving birth. For the next 2 weeks, soy milk ingestion was withdrawn. Dietary intake and anthropometric data were checked and breast milk, blood, and 24 hr urine samples were collected on the day of giving birth, the 14th (the last day of the supplement phase) and 28th (the last day of the withdrawal phase) day, respectively. HPLC analysis was used to measure the concentration of isoflavones. Dietary intakes of the subjects were inadequate for the Korean RDA regardless of soy milk supplementation. Especially, intakes of vit A, calcium, and iron were very low. The Anthropometric data such as LBM, TBW, PIBW, BMI checked on the day of 14th decreased and maintained their levels by the 28th day. Daidzein concentration in breast milk was not affected by soy milk supplementation. However, genistein concentration decreased by the 28th day (14th day: 0.89 $\pm$ 0.10 $\mu$g/ml, 28th day : 0.48 $\pm$ 0.07 $\mu$g/ml) (p < 0.05). Plasma daidzein and genistein concentrations were not changed by the 14th day and decreased by the 28th day (14th day: 49.64 $\pm$ 3.30 ng/ml, 26.72 $\pm$ 2.90 ng/ml, 28th day: 38.30 $\pm$ 4.40 ng/ml, 6.51 $\pm$ 0.50 ng/ml, respectively) (p < 0.05). Twenty four hour urine concentrations of daidzein and genistein significantly increased by the 14th day and decreased by the 28th day (14th day: 5.80 :t 0.3 mg/d, 4.17 $\pm$ 0.2 mg/d, 28th day: 6.72 $\pm$ 0.4 mg/d, 5.09 $\pm$ 0.5 mg/d, respectively) (p < 0.001). The rate of urinary recovery of daidzein was greater than that of genistein. The results of this study indicate that the supplement of dietary soy milk to the lactating women elevates the contents of isoflavone in the breast milk.