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      • SCIEKCI등재

        우라늄광 부근에서 우라늄의 토양 및 식물체중 함량과 주민들에 의한 체내 집적량추정

        김태순,유장걸,송기준 한국농화학회 1979 Applied Biological Chemistry (Appl Biol Chem) Vol.22 No.4

        The soils and plants were sampled from 26 sites of Deogpyeongri, Goisangun, which had been found to be one of the uranium deposit areas. Uranium levels of the samples were determined and the amount of uranium intake by the residents through the food-chains was estimated. The average uranium concentration of Deogpyeongri soils was 15.5ppm with a range of from 4.9 to 43.6ppm showing rather higher values than those of control area, Yangjugun and Icheongun, Gyeonggi-do. The average uranium content of the plant samples from Deogpyeongri was 0.69ppm, about twice the uranium concentration of the control samples. The daily intake of uranium by an adult lived on the agricultural food stuffs produced in Deogpyeongri, was estimated to be about 247㎍, eqivalent to 0.83×10^(-4)μCi, which is much higher activity compared to the daily intake cf uranium by New York citizen, 1.3㎍. However the calculated uranium level accumulated in the human body of Deogpyeong area was 2.03×10^(-4)μ which is still lower than 0.2μCi, the maximum permissible burden in total body recommended by the ICRP.

      • ^42K 同位元素 稀釋에 의한 K^+의 土壤吸着 特性

        金台淳 건국대학교 1987 學術誌 Vol.31 No.2

        This study was carried out to characterize K+ adsorption on soils with different pH, content of clay, and organic matter by 42K isotopic dilution method. Two slightly alkaline soils, Typic Haplaquent, Gwanghwal and Lithic Udorthent, Jangseong series, and remaining two strongly acid soils, Aquic udipsamment, Sadu and Aquic Hapludalf, Paju series were used for this study. The K+ adsorption on the soils, in the range of concentrations with 6.9~27.8μCi 42K l-1 and 253∼ 1014ppm K+ are fitted well on both of the Freundlich and the Langmuir adsorption isotherms. The amount of the Langmuir adsorption maximum are: highest in Jangseong series, Paju and Gwanghwal soils that show similar amount are come next, and the lowest in sandy Sadu soil. High pH and higher content of clay and organic matter, and prominent content of vermiculite in the Jangseong soil seemed to be attributed the highest K+ adsorption. For K+ holding strength, the Langmuir constant, however, that show weak possibly due to weak bonding on the organic matter in the soil. In the case of Paju and Gwanghwal soils, higher clay content with dominant 2:1 minerals and high pH seemed to be affected respectively much for K+ adsorption on both soils. As for sandy Sadu soil, lower clay content and dominant kaolinite may be caused on the lowest K+ adsorption.

      • 파라몰리브덴酸 암모늄 水溶液의 電氣傳導度에 關한 硏究

        金泰順,趙玉子 이화화학회 1967 梨花化學會誌 Vol.- No.6

        파라몰리브덴酸 암모늄(APM) 水溶液의 當量電氣傳導의 測定値로부터 묽은 APM 水溶液의 25℃에서의 測定値와 符合하는 當量電氣傳度液에 關한 다음과 같은 實驗式을 誘導하였다. Λ=510-428.8√c+1,790,850c log c+5,417,321c 이 實驗式으로 計算한 값은 3.4×10^-4eq/ℓ 以下의 APM 水溶液에 關하여는 測定値와 僅少한 誤差內에서 一致한다. 이 式에서는 無限稀釋에서의 APM 水溶液의 當量傳導度를 25℃에서 510 Ω^-1·cm^2·eq^-1로 하였는데, 이 값은 多分히 任意的인 數値이고 本 硏究에서의 測定値를 正確하다고 假定할 때 數値上의 一致를 目的한데 不過한 것이다. Devising empirical formula of equivalent conductance of very dilute aqueous solutions of ammonium paramolybdate(APM) at 25℃ were carried out from measured electrical conductivity. The devised formula is Λ=510-428.8√c+1,790,850c log c+5,417,321c assuming that, somewhat arbitrarily, the equivalent conductance of APM at in finite dilution as 510 Ω^-1·cm^2·eq^-1 at 25℃. The agreement of the values of calculated with the measured are excellent for solutions weaker than 3.4×10^-4 eq/ℓ. But the adaptation of the equation is limited for the observed values of this experiment.

      • 流紋岩質 角礫凝灰岩 粉末에 의한 NH₄+, k+의 Langmuir 吸着과 ??脫着

        金台淳 建國大學校附設 農業資源開發硏究所 1982 論文集 Vol.7 No.-

        Kaolinite, Halloysite, Gibbsite를 主粘上鑛物로 含有하고 있는 田, 畓土壤의 物理化學性 改良材로서 流紋岩質 角礫凝灰岩 粉末의 有效性을 評價하기 위해서 ??, ??의 Langmuirg吸着 및 그것으로부터의 K 脫着特性을 檢討해 봤다. 粉末試料의 X線回折 分析 結果, 이 粉末에서 陽이온 吸着能을 가지고 있는 Clinoptilolite와 Mordenite가 檢出되었다. 또한 ??, ??이온 吸着은 Langmuir 等溫吸着이 適用됨을 確認했다. 凝灰岩 粉末의 Langmuir 最大吸着은 95∼129m.e./100g 범위였다. 또한 이 값은 試料의 陽이온 置換容量과 大體로 같았다. 吸着된 K를 IN-NH₄OAc로 4回 連續 浸出했을 때 K는 試料 중의 全加里의 52∼80%가 脫着되었다. 그런데 放出된 K量의 67∼70%는 1回 浸出때에 放出되었다. 즉, 양북(慶州地方), 금곡 및 마현(浦項地方)産地 試料는 각각 70.5%, 69.1%, 66.7%에 해당하는 K가 放出되었다. ?? and ?? adsorption by and ?? desorption from the rhyolitic tuff breccia powders were studied to evaluate its effectiveness as ameliorating material for soils which is involved dominantly kaolinite or halloysite, gibbsite and the others. Clinoptilolite and mordenite which is known to having the cation adsorptive power were identified by the X-ray diffraction analysis of the powdered samples. ?? and ?? ions adsorption by the samples could be confirmed to fit well the Langmuir adsorption isotherms. The values of the Langmuir adsorption maxima of the powders were in the ranges from 95 to 129 m.e./100g and that the values corresponded to those of the cation exchange capacities of the samples. As for desorption of K from the potassium adsorbed powders, 52 to 80 percent of total K could be released during four times of successive extractions by using IN-NH₄OAc solutions. 67 to 70 percent of the potassium released, however, could be desorbed by the initial IN-NH₄OAc extraction.

      • Diphenylhydantoin의 造血能에 미치는 影響

        金台淳,黃基錫 慶北大學校 醫科大學 1974 慶北醫大誌 Vol.15 No.2

        ① 體重 kg當 5mg의 diphenylhydantoin을 經口的으로 每日 4週間 投與한 實驗群에서도 血色素値, 好中球 絶對數 및 血小板數에 있어서 4週間에 걸쳐 有意한 變動이 없었으며 骨髓의 巨核球數, 骨髓球系細胞數, 赤芽球系細胞數 및 赤血球 ^59Fe 利用率에 있어서도 對照群에 比하여 有意한 差가 없었다. ② 體重 kg當 50mg의 diphenylhydantoin을 經口的으로 每日 4週間 投與한 實驗群에서는 血色素値는 뚜렷 한 減少가 있었으나 好中球絶對數 및 血小板數에 有意한 變動이 없었다. 그리고 骨髓의 巨核球數 및 骨 髓球系細胞數는 對照群에 比해 有意한 差가 없었으나 赤芽球系細胞數 및 赤血球 ^59Fe 利用率에는 有意 한 差가 있었다. ③ 體重 kg當 50mg의 diphenylhydantoin을 每日 經口的으로 4週間 投與하고 同時에 體重 kg當 0.1mg의 葉酸을 每日 筋肉內로 4週間 投與했던 바 diphenylhydantoin으로써 誘發된 貧血에 對하여 葉酸의 治療的 效果는 없었다. 上記 實驗成績으로서 diphenylhydantoin을 大量으로 흰 쥐에게 投與하는 境遇에는 赤芽球性無形成을 일 으킬 수 있다는 것을 알 수 있었다. Diphenylhydantoin was administered to male albino rats in order to study its effect on the hematopoiesis and to evaluate the effect of folic acid on the anemia induced by the drug with the following results. 1. Control rats receiving no medication revealed no significant changes in hemoglobin, absolute neutrophil count and platelet count during a period of four weeks. 2. Rats receiving diphenylhydantoin orally at a dose of 5 mg per kg daily disclosed no significant changes in hemoglobin, absolute neutrophil count and platelet count. Also no appreciable differences were noted in marrow megakaryocyte count, erythroid cell count, myeloid cell count, and erythrocyte ^59Fe incorporation as compared with those of the control rats. 3. Rats receiving diphenylhydantoin orally at a dose of 50mg per kg daily for four weeks showed a marked decrease of hemoglobin level whereas no significant alterations were observed in either the absolute neutrophil count or the platelet count. The examination of both erythroid cell count and erythrocyte ^59Fe incorporation showed significant changes as compared with those of the control rats, whereas the marrow megakaryocyte count, and the myeloid cell count revealed no significant alterations. 4. Rats receiving concomitantly diphenylhydantoin orally at a dose of 50mg per kg and folic acid intramuscularly at a dose of 0.1mg per kg daily for four weeks revealed that folic acid was not effective in ameliorating the anemia induced by diphenylhydantoin. 5. It is concluded from the aforementioned experimental data that rats receiving the administration of large doses of diphenylhydantoin could develop erythroid aplasia.

      • KCI등재

        Effect of Organic and Inorganic Zinc Sources on Zinc Availability under Flooded Soil Condition

        김태순,김재성,한강완,Kim, Tae-Soon,Kim, Jae-Sung,Han, Kang-Wan 한국토양비료학회 1981 한국토양비료학회지 Vol.13 No.3

        In order to evaluate effectiveness of zinc source on uptake of zinc by rice plant, a pot experiment carried out using ZnEDTA and $ZnSO_4$ in a glasshouse. The results obtained were summarized as follows: The effectiveness of zinc source on uptake of zinc by rice plants was different with different soil. Namely ZnEDTA was more efficient than $ZnSO_4$ in increasing yield of zinc and concentration of zinc in the plant grown on Jecheon calcareous soil. In case of Keumgok acid soil, however, no superiority of ZnEDTA treatment was found. The plant growing status of ZnEDTA treated calcareous soil was also shown that larger number of tillers per hill, bigger height of the plant and good yield of dry matter production than those of the plant grown on $ZnSO_4$ treatment. Regardless of the zinc source, smaller number of tillers per hill, shorter height of the plant, and the lowest yield of dry matter were shown in the treatment of zinc and straw mixed with both soils. It seemed that more applied zinc was to be fixed by the straw application resulting in poor zinc yield. The extent of the zinc fixation showed markedly in Jecheon calcareous soil. 아연비료로서 ZnEDTA와 $ZnSO_4$의 유효도를 평가하기 위해서 수도의 아연흡수 실험을 시도했다. 수도의 아연흡수에 있어서 급원별(給源別) 아연 유효도는 토양에 따라서 차이(差異)가 있었다. pH가 높은 제천(提川) 석회암질(石灰岩質) 토양에서는 ZnEDTA가 $ZnSO_4$보다 수도체아연 농도(濃度)와 아연 흡수량(吸收量)을 증가시키는데 더 유효했다. 그러나 산성(酸性)인 금곡토양의 경우도 ZnEDTA의 유효성이 인정(認定)되지 않았다. ZnEDTA를 처리(處理)한 제천(提川) 석회암질(石灰岩質) 토양에서 생육(生育)한 수도는 $ZnSO_4$ 처리구 수도보다 분얼수와 초장(草丈)이 컸고 건물생산량(建物生産量)도 높았다. 아연급원에 관계없이 아연와 유기물(有機物) 처리구에서 자란 수도의 분얼수, 초장(草丈), 건물생산량(建物生産量)은 모두 다 적었다. 이것은 유기물(有機物)을 첨가(添加)하므로서 시비(施肥) 아연의 고정(固定)이 더 일어나서 수도체의 아연수율이 적기 때문이라고 본다. 아연고정 정도(程度)는 제천(提川) 석회암질(石灰岩質) 토양에서 컸다.

      • KCI등재

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