M. A. Moghimi

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We have analyzed the effect of external electric field on the zigzag (6,0) single-wall BC2N nanotube using density functional theory calculations. Analysis of the structural parameters indicates that the nanotube is resistant against the external electric field strengths. Analysis of the electronic structure of the nanotube indicates that the applied(More)
Structural, electronic, and electrical responses of the H-capped (6,0) zigzag single-walled aluminum nitride nanotube was studied under the parallel and transverse electric fields with strengths 0-140 × 10(-4) a.u. by using density functional calculations. Geometry optimizations were carried out at the B3LYP/6-31G* level of theory using a locally modified(More)
In this paper, Adomian Decomposition Method (ADM) is applied to typical oscillation equations (Duffing and Van der Pol equations). The method does not need linearization, weak nonlinearity or perturbation considerations. The applicability of the method is confirmed by a good agreement obtained between the results of ADM solutions and the corresponding(More)
  • 2006
In this study, a closed form solution is obtained for a system of wave equations coupled in parallel with distributed viscous damping and springs, utilizing Adomian decomposition method (ADM). The after treatment technique is adopted to overcome shortcomings of Adomian convergency. 1 1 2 2 (,) (,) () (,) (,) () 0 1 , 0, tt xx tt xx u u R u v N u v g x R u v(More)
Density functional theory (DFT) calculations were performed to investigate the electronic structure properties of pristine and Si-doped aluminum nitride nanotubes as n or P-semiconductors at the B3LYP/6-31G* level of theory in order to evaluate the influence of Si-doped in the (6,0) zigzag AlNNTs. We extended the DFT calculation to predict the electronic(More)
Diffuse reflectance spectroscopy (DRS) can be used as a rapid and sensitive method for the quantitative determination of low amounts of aluminum. In this analytical technique, the analyte in samples are extracted onto a solid sorbent matrix loaded with a colorimetric reagent and then quantified directly on the adsorbent surface. Alternatively, colored(More)
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