• 제목/요약/키워드: J.S.P.

검색결과 5,173건 처리시간 0.032초

Phytochemical constituents of Actinidia arguta

  • Moon, H.I.;Whang, J.I.;Oh, J.S.;Park, B.;Hong, S.I.;Jung, Y.H.;Lee, K.R.;Zee, O.P.
    • 대한약학회:학술대회논문집
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    • 대한약학회 2000년도 춘계총회 및 학술대회
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    • pp.176.3-176.3
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    • 2000
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The Effects of pH and Buffer Materials on the Leaching of Simulated Waste Glass

  • Kim, S.S.;Kim, J.G.;Kim, J.S.;Chun, K.S.;Lee, G.H.
    • Nuclear Engineering and Technology
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    • 제30권1호
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    • pp.1-7
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    • 1998
  • Effects of pH, bentonite and Portland cement on the leaching of the simulated waste glass were investigated. The simulated waste glass showed the low leach rate in the neutral pH region, while the leach rate in both acidic and alkaline regions increased. Addition of bentonite to the leachant enhanced the leaching of the waste glass. When the waste glass was leached at 72$^{\circ}C$ for 36 days in the ground water with gel state Na-bentonite, approximately 2.2${\mu}{\textrm}{m}$ of the surface was corroded out and the large amount of Ti, Nd, and Zr was observed on the surface. The amount of B leached from the simulated waste glass in the presence of domestic bentonite was about three times higher than that in the presence of Aldrich bentonite as well as Portland cement.

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THE LATTICE DISTRIBUTIONS INDUCED BY THE SUM OF I.I.D. UNIFORM (0, 1) RANDOM VARIABLES

  • PARK, C.J.;CHUNG, H.Y.
    • 대한수학회지
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    • 제15권1호
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    • pp.59-61
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    • 1978
  • Let $X_1$, $X_2$, ${\cdots}$, $X_n$ be i.i.d. uniform (0,1) random variables. Let $f_n(x)$ denote the probability density function (p.d.f.) of $T_n={\sum}^n_{i=1}X_i$. Consider a set S(x ; ${\delta}$) of lattice points defined by S(x ; ${\delta}$) = $x{\mid}x={\delta}+j$, j=0, 1, ${\cdots}$, n-1, $0{\leq}{\delta}{\leq}1$} The lattice distribution induced by the p.d.f. of $T_n$ is defined as follow: (1) $f_n^{(\delta)}(x)=\{f_n(x)\;if\;x{\in}S(x;{\delta})\\0\;otherwise.$. In this paper we show that $f_n{^{(\delta)}}(x)$ is a probability function thus we obtain a family of lattice distributions {$f_n{^{(\delta)}}(x)$ : $0{\leq}{\delta}{\leq}1$}, that the mean and variance of the lattice distributions are independent of ${\delta}$.

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부하모델의 신뢰성 검증을 위한 22.9[kV] 부하모선 선정 및 현장 전압특성실험 (Load Characteristic Experiment for Reliability Verification of Load Model in 22.9[kV] Bus)

  • 이종필;위원석;한만형;김기동;박시우;지평식;임재윤;김정훈
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 추계학술대회 논문집 학회본부 A
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    • pp.322-324
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    • 1999
  • This paper presents the methodology of measuring the 22.9[kV] bus load characteristics for verifying the bus load model developed with equivalent load aggregation of load components, and the analysis of 22.9[kV] load data.

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전력량 예측 및 부하 패턴을 근거로 한 부하 곡선 예측 (Electric Energy Forecasting and Development of Load Curve Based on the Load Pattern)

  • 지평식;조성현;이종필;남상천;임재윤;김정훈
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 추계학술대회 논문집 학회본부
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    • pp.163-165
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    • 1996
  • In this paper, we are proposed development of electric energy method and load curve. A daily electric energy is forecasted using artificial neural network. The load curve is obtained by combining forecasted electric energy and typical daily load patterns which are classified using KSOM and Fuzzy system. As a result, we know that we could get more accurate results and easier application than the results from based on the hourly historical data.

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ITO/InP 태양전지 제작에 응용된 sulfur passivation의 효과 (The effects of sulfur passivation on the performance of ITO/InP solar cells)

  • 이영철;한교용
    • 전자공학회논문지D
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    • 제34D권9호
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    • pp.50-55
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    • 1997
  • In order to improve the electrical performance of ITO/InP solar cells, sulfur passivation technique was employed using (N $H_{4}$)$_{2}$ $S_{x}$ solution. Passivation effects were analyzed by measuring the short circuit current density ( $J_{sc}$ ) of solar cells and photoluminescence (PL) of ITO/InP interfaces. This paper firstly reports the sulfur passivation effects by investigating the correlation between the PL intensity and the short circuit current. Generally, PL intensity and the short circuit current of sulfur passivated sampels wer eincreased, and showed the same trend. Especially, samples prepared at 60.deg. C (N $H_{4}$)$_{2}$ $S_{x}$ solution exhibited the highest $J_{sc}$ and PL intensity. These results demonstrated that the short circuit currents was influenced by the ITO/InP interface states.

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