http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Hydrogen Bubbles and the Growth Morphology of Ramified Zinc by Electrodeposition
Hsu, Pei-Cheng,Seol, Seung-Kwon,Lo, Tsung-Nan,Liu, Chi-Jen,Wang, Chang-Liang,Lin, Chao-Sung,Hwu, Y.,Chen, C. H.,Chang, Liu-Wen,Je, J. H.,Margaritondo, G. The Electrochemical Society 2008 Journal of the Electrochemical Society Vol.155 No.5
G.G. Yao,C.J. Pei,H. Ma,,H.L. Zhang,X.L. Tian 한양대학교 세라믹연구소 2012 Journal of Ceramic Processing Research Vol.13 No.2
The effect of Fe2O3-LiF co-doping on the sintering behavior, phase compositions and microwave dielectric properties of Mg4Nb2O9-CaTiO3 ceramics were investigated. The Fe2O3-LiF addition effectively lowered the sintering temperature of Mg4Nb2O9-CaTiO3 ceramics from 1275 oC to 1025 oC. XRD showed the presence of LiFe5O8 and Ca(FeTi)2O4 as second phases. With an increase in the sintering temperature, the dielectric constant (εr) and quality factor (Q·f) first increase and decrease thereafter, the temperature coefficient of resonant frequency (τf) changes slightly. A Mg4Nb2O9-CaTiO3 specimen with 0.75wt%Fe2O3-1.5 wt%LiF sintered at 1025 oC/5 h exhibited good microwave dielectric properties: εr = 13.6, Q·f = 64 430 GHz (9.5 GHz)and τf = −60.4 ppm/K. These properties were correlated with the formation of the second phases, LiFe5O8 and Ca(FeTi)2O4.
Reverberation Mapping of PG 0934+013 with the Southern African Large Telescope
Park, Songyoun,Woo, Jong-Hak,Romero-Colmenero, Encarni,Crawford, Steven M.,Park, Dawoo,Cho, Hojin,Jeon, Yiseul,Choi, Changsu,Barth, Aaron J.,Pei, Liuyi,Hickox, Ryan C.,Sung, Hyun-Il,Im, Myungshin American Astronomical Society 2017 The Astrophysical journal Vol.847 No.2
<P>We present the variability and time-lag measurements of PG 0934+013 based on a photometric and spectroscopic monitoring campaign over a two year period. We obtained 46 epochs of data from the spectroscopic campaign, which was carried out using the Southern African Large Telescope with similar to 1 week cadence over two sets of four month-long observing period, while we obtained 80 epochs of B-band imaging data using a few 1 m class telescopes. Due to the seven month gap between the two observing periods, we separately measured the time lags of broad emission lines, including H beta, by comparing the emission line light curve with the B-band continuum light curve using the cross-correlation function techniques. We determined the H beta lag, tau(cent) = 8.46(-2.14)(+2.08) days in the observed frame based on Year 2 data, while the time lag from Year 1 data was not reliably determined. Using the rms spectrum of Year 2 data, we measured the H beta line dispersion sigma(line) = 668 +/- 44 km s(-1) after correcting for the spectral resolution. Adopting a virial factor f = 4.47 from Woo et al. ( 2015), we determined the black hole mass M-BH = 3.13(-0.93)(+0.91)x10(6) M-circle dot, based on the H beta time lag and velocity.</P>