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Temperature Dependence of the Vibration-Vibration Energy Transfer for HF(v = n) + $H_2$(v = 0) and DF(v = n) + $D_2$(v = 0)

  • Lee, Chang-Soon;Kim, Yoo-Hang
    • Bulletin of the Korean Chemical Society
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    • v.13 no.1
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    • pp.11-17
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    • 1992
  • Vibration-to-vibration energy transfer probabilities for $HF(v=n)+H_2(v=0){\to}HF(v=n-1)+H_2(v=1)$ and $DF(v=n)+D_2(v=0){\to}DF(v=n-1)+D_2(v=1)$ including both the vibration-to-vibration and translation (V-V, T) and vibration-to-vibration and rotation (V-V, R) energy transfer paths have been calculated semiclassically using a simplified collision model and Morse-type intermolecular interaction potential. The calculated results are in reasonably good agreement with those obtained by experimental studies. They also show that the transition processes for $HF(v=1-3)+H_2(v=0){\to}HF(v=0-2)+H_2(v=1)$ and $DF(v=1,\;4)+D_2(v=0){\to}DF(v=0,\;3)+D_2(v=1)$ are strongly dependent on the V-V, T path at low temperature but occur predominantly via the V-V, R path with rising temperature. The vibration-to-vibration energy transfer for $HF(v=4)+H_2(v=0){\to}HF(v=3)+H_2(v=1)$ and $DF(v=2-3)+D_2(v=0){\to}DF(v=1-2)+D_2(v=1)$ occur predominantly via V-V, R path and V-V, T path through whole temperatures, respectively.

Stem Firmness and Flowering Response of Cut Lilies as Influenced by Medium Composition in Box Culture (절화백합의 상자 재배시 몇가지 배양토 조성이 생육과 줄기경도에 미치는 영향)

  • Suh, Jeung-Keun
    • Journal of Bio-Environment Control
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    • v.10 no.2
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    • pp.75-79
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    • 2001
  • Stem firmness and flowering response of cut lily as influenced by medium composition (Control; Upland soil, Pt; Peatmoss, Pe; Perilite, Ve; Vermiculite, Rrh; Rotted rice-hull, RPt: Russian Peatmoss) were studied. For 'Casa Blanca', plant height and length of flower stalk increased when bulbs were planted in Pt:Rrh:Ve (1:1:1, v.v$^{-1}$ ), and dried leaves of lower part plants decreased in RPt:Pe:Rrh (1:1:1, v.v$^{-1}$ ). In case of 'Marco Polo', plant height and length of lower stalk increased in Pt:Rrh (1:1, v.v$^{-1}$ ) as compared to other treatment, number of leaves and dried leaves increased when bulbs were planted in RPt:Pe:Rrh (1:1:1, v.v$^{-1}$ ) as compared to the control. Flowering of 'Casa Blanca' increased in RPt:Pe:Rrh (1:1:1, v.v$^{-1}$ ) as compared to the control and that o 'Marco Polo' increased when bulbs planted in Pt:Rrh(1:1, v.v$^{-1}$ ). Flower-bud blasting of both cultivars increased with Pt as compared. Stem firmness of 'Casa Blanca' increased in Pt:Pe:Ve (1:1:1, v.v$^{-1}$ ), and especially stem firmness of upper part plant of 'Marco Polo' increased in Pt:Rrh (1:1, v.v$^{-1}$ ) as compared to the control. Generally, stem firmness of 'Casa Blanca' was not influenced by the culture medium.

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Variation of Threshold Voltage by Programming Voltage Change of a Flash Memory Device with Ge-MONOS (Ge-MONOS 구조를 가진 플레쉬 메모리 소자의 프로그래밍 전압에 따른 문턱 전압 관찰)

  • Oh, Jong Hyuck;Yu, Yun Seop
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2019.05a
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    • pp.323-324
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    • 2019
  • For flash memory devices with Ge-MONOS(metal-Oxide-Nitride-Oxide-Silicon) structures, variations of threshold voltage with programming voltage were investigated. The programming voltage was observed in steps of 1V from 10V to 17V and programmed for 1 second. The threshold voltage from 10V to 14V was about 0.5V, which is not much different from that before programing, and the threshold voltages at 15V, 16V and 17V were 1.25V, 2.01V and 3.84V, respectively, which differed 0.75V, 1.49V and 3.44V from that before programing.

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Stem Firmness and Flowering Response of Cut Lilies as Influenced by Medium Composition in Box Culture

  • Suh, Jeung-Keun
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 2001.04b
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    • pp.45-50
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    • 2001
  • Stem firmness and flowering response of cut lily as influenced by medium composition (Control: Upland soil, Pt: Peatmoss, Pe: Perlite, Ve: Vermiculite, Rrh: Rotted rice-hull, RPt: Russian Peatmoss) were studied. For 'Casa Blanca', plant height and length of flower stalk increased when bulbs were planted in Pt:Rrh:Ve(1:1:1, v/v), and dried leaves of lower part plants decreased by RPt:Pe:Rrh(1:1:1, v/v). In case of 'Marco Polo' plant height and length of flower stalk increased with Pt:Rrh(1:1, v/v) as compared to other treatment, number of leaves and dried leaves increased when bulbs were planted in RPt:Pe:Rrh(1:1:1, v/v) as compared to control. Flowering of 'Casa Blanca' was promoted in Pt:Pe:Ve(1:1:1, v/v) and 'Marco Polo' was accelerated in Pt:Rrh:Ve(1:1:1, v/v). Flower length of 'Casa Blanca' was increased by RPt:Pe:Rrh(1 :1 :1, v/v) as compared with control and 'Marco Polo' was increased when bulbs planted to Pt:Rrh(1 :1, v/v). Flower-bud blasting of two cultivars was increased with Pt as compared with other treatment. Stem firmness of 'Casa Blanca' was increased by Pt:Pe:Ve (1:1 :1, v/v), and especially, stem firmness of upper part plants was increased by Pt:Rrh(1 :1, v/v) in 'Marco Polo' as compared to control plants. but generally, stem firmness of 'Casa Blanca' was not influenced with all cultural media as compared to control.

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Realizing Mixed-Polarity MCT gates using NCV-|v1 > Library (NCV-|v1 >라이브러리를 이용한 Mixed-Polarity MCT 게이트 실현)

  • Park, Dong-Young;Jeong, Yeon-Man
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.1
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    • pp.29-36
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    • 2016
  • Recently a new class of quantum gate called $NCV-{\mid}v_1$ > library with low cost realizable potentialities is being watched with keen interest. The $NCV-{\mid}v_1$ > MCT gate is composed of AND cascaded-$CV-{\mid}v_1$ > gates to control the target qudit and its adjoint gates to erase junk ones. This paper presents a new symmetrical duality library named $NCV^{\dag}-{\mid}v_1$ > library corresponding to $NCV-{\mid}v_1$ > library. The new $NCV^{\dag}-{\mid}v_1$ > library can be operated on OR logic under certain conditions. By using both the $NCV-{\mid}v_1$ > and $NCV^{\dag}-{\mid}v_1$ > libraries it is possible to realize MPMCT gates, SOP and POS type synthesis of quantum logic circuits with extremely low cost, and expect dual gate property caused by different operational attributes with respect to forward and backward operations.

BVR Standardization of the CCD Photometric System of Chungbuk National University Observatory (충북대학교 천문대 CCD 측광계웨 BVR 표준화)

  • Jeong, Jang-Hae;Lee, Yong-Sam;Kim, Chun-Hwey;Yoon, Yo-Na
    • Journal of Astronomy and Space Sciences
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    • v.26 no.2
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    • pp.157-170
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    • 2009
  • BVR observations for 52 standard stars were performed using the 1-m reflecter with 2K CCD System of Chungbuk National University Observatory (CBNUO) in 2008. We obtained 1,322 CCD images to establish a correlation between our bvr system and the standard Johnson-Cousins BVR system. We derived the tentative equations of transformation between then as follows; V = v-0.0303(B - V) + 0.0466 B - V = 1.3475(b - v) - 0.0251 V - R = 1.0641(v - r) - 0.0125 Using these equations the magnitudes in V, B-V, and V-R for 197 stars were obtained.

Pharmacokinetic analysis for the development of new potent anti-HIV-1 agents, the KR-V series (새로운 항HIV-1제, KR-V series의 개발을 위한 약물동태연구)

  • Lee, Young-mi;Kim, Jin-suk;Han, Sang-seop;Shin, Ho-chul
    • Korean Journal of Veterinary Research
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    • v.40 no.3
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    • pp.471-478
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    • 2000
  • The pharmacokinetic properties of KR-V compounds, recently developed as new anti-HIV agents, were studied after i.v. and p.o. administration in rats. The concentrations of the KR-V series were determined in rat plasma using an high-performance liquid chromatography (HPLC)-UV detection system. Of the 19 KR-V compounds investigated in the present study, only KR-V 3, 10, 14, 16 and 18-1 showed oral bioavailability. The plasma concentration-time data could be adequately described by an one-compartment open model. In the i.v. kinetic study (10mg/kg), the CLt of KR-V 3, 10, 14 and 16 (>4L/hr/kg) were significantly higher than that of KR-V 18-1 (1.1 L/hr/kg). The AUC of KR-V 18-1 was greater ($8.97{\mu}g{\cdot}hr/ml$) than that of the other compounds, but the Vd (0.58 L/kg) was lower. In the p.o. kinetic study (50mg/kg), although the t-1/2 of KR-V 18-1 was shorter than that of the other compounds, the AUC ($3.659{\mu}g{\cdot}hr/ml)$ and $C_{max}(1.891{\mu}g/ml$) were markedly higher. In a seperated in vitro experiment, only KR-V 18-1, of the 5 compounds with bioavailibility, exhibits potent activity against HIV-1 mutant strains. Therefore, KR-V 18-1 is expected to become a new potent anti-AIDS drug candidate/lead compound.

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A Design of Digital Instrumentation Amplifier converting standard sensor output signals into 5V voltage-output (표준 센서 출력신호를 5V 전압-출력을 변환하는 디지털 계측 증폭기 설계)

  • Cha, Hyeong-Woo
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.48 no.11
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    • pp.41-47
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    • 2011
  • A novel digital instrumentation amplifier(DIA) converting universal signal inputs into 5V voltage-output for industry standard sensor signal processing was designed. The circuit consists of a commercial instrumentation amplifier, seven analog switches, two voltage references of 1.0V and -10.0V, and four resistors. The converting principle is the circuit reconstruction by switches for resistor values and reference voltages according to input signals. The simulation result shows that the DIA has a good output voltage characteristics of 0~5V for the input voltage of 0V~5V, 1V~5V, -10V~+10V, and 4mA~20mA. The nonlinearity error was less than 0.1% for the four type signal inputs.

Effect of Substrates on Growth and Yield of Hydroponically Grown Cucumber in Bag Culture (자루재배에서 배지의 종류가 오이의 생육 및 수량에 미치는 영향)

  • 이응호;이재욱;권지선;남윤일;조일환;권영삼
    • Journal of Bio-Environment Control
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    • v.5 no.1
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    • pp.15-22
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    • 1996
  • Cucumbers(Cucumis sativus L. CV. SHARP 1) were cultivated by bag culture for 5 months to investigate the effect of substrates on growth, yield, and mineral contents. The substrates used in the experiment were vermiculite + perlite +peatmoss(1:1:1=V:V:V), perlite+peatmoss(1:1=V:V), perlite+carbonized chaff(7:3=V:V), rockwool, sawdust, and chaff+chaff powder under 10 mesh (7:3=V:V). The rate of moisture content was highest at chaff powder under 10 mesh as 42.5% and was lowest at perlite+carbonized chaff as 31%. Plant height, No. of leaves, fresh and dry weight were increased in vermiculite+perlite+peatmoss(1:1:1=V:V:V). Marketable fruits and yield also showed same aspect with growth. All kinds of mineral contents except K in cucumber plants were higher at vermiculite+perlite+peatmoss(1:1:1=V:V:V), but K content was higher at perlite+ carbonized chaff(7:3=V:V) than those other substrates.

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Studies on the Estimation of Leaf Production in Mulberry Trees IV. Estimation of Spring Leaf Yield by the Measurement of Some Characters (상엽수확고 측정에 관한 연구 제 4보 추기상수각형질의 측정에 의한 익춘 상엽량의 예측)

  • 한경수;장권열;안정준
    • Journal of Sericultural and Entomological Science
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    • v.10
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    • pp.35-40
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    • 1969
  • Various formulae for estimation of spring leaf production in mulberry trees were calculated and obtained. Four varieties of mulberry trees were used as the materials, and four characters, namely branch length (X$_1$), node number (X$_2$), branch diameter (X$_3$) and branch number per stock (X$_4$) were studied. The formulae to estimate the leaf yield of spring mulberry trees are as follows: 1. $Y_1$v$_1$= -26.8939+50.3950X$_1$+1.1403X$_2$ $Y_1$v$_2$= -372.1091+116.6371X$_1$+0.1984X$_2$ $Y_1$v$_3$= 149.8203+90.5125X$_1$-0.9775X$_2$ $Y_1$v$_4$= 108, 1496+59.4533X$_1$+1.4965X$_2$ Where $Y_1$v$_1$, $Y_1$v$_2$, $Y_1$v$_3$, $Y_1$v$_4$, are showed the estimated yield of the each variety, namely Gaeryang Seuban, Ilchirye, Nosang, and Suwon Sang No. 4, respectively. X$_1$ and X$_2$ denote the measured values of branch length and node number, respectively. 2. $Y_{7}$v$_1$= -54.4411+32.9869c1.1127X$_2$+21.7600X$_3$ $Y_{7}$v$_2$= -494.1480-1.8756X$_1$+0.9788X$_2$+110.0039X$_3$ $Y_{7}$v$_3$= 143.2836+29.1779X$_1$+0.1644X$_2$+48.4135X$_3$ $Y_{7}$v$_4$= 1243.2549+1.9454X$_1$+2.7118X$_2$-75.6669X$_3$ Where $Y_{7}$v$_1$, $Y_{7}$v$_2$, $Y_{7}$v$_3$, $Y_{7}$v$_4$, are the estimated yield of the each variety, namely Gaeryang-Seuban, Ilchirye, Nosang, Suwon Sang No 4, respectively. X$_1$, X$_2$, X$_3$ denote the measured values of each character, branch length, node number, branch diameter and branch number per stock, respectively. 3. $Y_{11}$v$_1$=233.4780+74.3713X$_1$+1.2912X$_2$+39.0420X$_3$-148.9300X$_4$ $Y_{11}$v$_2$=-317.0150+15.l524X$_1$+1.0861X$_2$+156.7973X$_3$-148.3742X$_4$ $Y_{11}$v$_3$=178.7011+29.8664X$_1$-0.2562X$_2$+102.4632X$_3$-83.2693X$_4$ $Y_{11}$v$_4$= 264.0062+47.7742X$_1$+2.6996X$_2$+92.8882X$_3$-192.3464X$_4$ Where $Y_{11}$v$_1$, $Y_{11}$v$_2$, $Y_{11}$v$_3$, $Y_{11}$v$_4$, are the estimated yield values of four varieties, and X$_1$, X$_2$, X$_3$, X$_4$, denote the measured values of four characters, namely branch length, node number, branch diameter and branch number per stock, respectively. The estimation method of mulberry spring leaf yield by measurement of some characters, in autumn the year before, could be the better method to determine the leaf yield of mulberry trees without destroying the leaves and without weighting the leaves of mulberry trees than the other methods.

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