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We compared variation in sun-canopy leaf anatomy, morphology and photosynthetic rates of coexisting woody species (trees and lianas) in an 8-year-old secondary forest (SF) and mature forest (MF) in the wet season in Xishuangbanna, SW China. Variability of leaf traits of 66 species within growth-form groups in each forest was quantified using coefficients of(More)
We report on the high frequency complex permittivity characterization of single-walled carbon nanotubes (SWNT) using broadband and narrowband frequency range techniques. SWNT suspensions, powder and fiber were investigated and the samples were a mixture of semiconducting and metallic nanotubes. Shielded open-circuited coaxial probe (50 MHz to 10 GHz) and(More)
  • J. Yan, L. Xie
  • 2010
The attenuation of electromagnetic wave by a single charged sand/dust particle has been numerically calculated using the finite different time domain in this paper. Then the ratio of attenuation of electromagnetic wave by charged particles to the one by particles without carrying charges are got, and results indicate that attenuation due to the charges(More)
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