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Träfflista för sökning "(WFRF:(Dai Z.)) srt2:(2000-2004) srt2:(2001)"

Search: (WFRF:(Dai Z.)) srt2:(2000-2004) > (2001)

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1.
  • Dai, Zhenwen, et al. (author)
  • Calculations of radiative lifetimes of Rydberg 6pnd J=2 states of PbI by multichannel quantum defect theory
  • 2001
  • In: Physical Review A (Atomic, Molecular and Optical Physics). - 1050-2947. ; 63:5
  • Journal article (peer-reviewed)abstract
    • Recently measured radiative lifetimes of the Rydberg series 6pnd 1/2[5/2](2)(0) and 1/2[3/2](2)(0) (n = 6 - 13) of PbI [Li et al., Phys. Rev. A 57, 3443 (1998)] have been compared with theoretical values obtained by means of multichannel quantum defect theory (MQDT) analyses. The MQDT parameters were obtained from experimentally determined energy levels. The channel admixture coefficients were calculated and used to evaluate the theoretical lifetimes. In addition, lifetime values for highly excited Rydberg states have been predicted.
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2.
  • Dai, X W, et al. (author)
  • Pyrolysis of waste tires in a circulating fluidized-bed reactor
  • 2001
  • In: Energy. - 0360-5442 .- 1873-6785. ; 26:4, s. 385-399
  • Journal article (peer-reviewed)abstract
    • Using a circulating fluidized bed (CFB) as the main reactor, an integrated process development unit was operated aiming at the pyrolysis of waste tires. The main chemical processes in the CFB can be divided into two zones corresponding to pyrolysis and secondary reactions. The pyrolysis of tire powder was carried out at various pyrolysis temperatures, particle sizes of tire powder and feed positions. The effects of temperature, residence time and heating rate on pyrolysis were analyzed based on the experimental data. The main trends are that (1) a long residence time contributes to secondary reactions and (2) lower temperature and heating rate favor carbonization, which reduces the oil yield. Analysis of the pyrolytic oil shows that the predominant components are aromatics, followed by alkanes, non-hydrocarbons and asphalt.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Chen, Y. (1)
Li, Z. S (1)
Dai, Zhenwen (1)
Dai, X W (1)
Yin, X L (1)
Wu, C Z (1)
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Zhang, W N (1)
Jiang, Z. K (1)
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University
Lund University (1)
Mid Sweden University (1)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)
Engineering and Technology (1)
Year
2001 (2)Undo refine

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