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closed-form-modeling
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Compact closed form model for skin and proximity effect in multiwall carbon nanotube bundles as GSI interconnects
, Article IEEE Transactions on Electron Devices ; Vol. 61, issue. 8 , July , 2014 , p. 2899-2904 ; Sarvari, R ; Sharif University of Technology
Abstract
Closed form model for skin and proximity effect is necessary for GSI interconnects. In this paper, exact formulation for current distribution inside multiwall carbon nanotube (MWCNT) bundles is derived using multiconductor transmission line model. The current distribution is different from copper wires and it is geometry dependent because of kinetic inductance and quantum capacitance. This current distribution is used to compute and formulate high frequency resistance of MWCNT bundles
Analytical closed form model for static pull-in analysis in electrostatically actuated torsional micromirrors
, Article Journal of Mechanical Science and Technology ; Volume 27, Issue 5 , 2013 , Pages 1443-1449 ; 1738494X (ISSN) ; Ahmadian, M. T ; Sharif University of Technology
2013
Abstract
The objective of this work is to create an analytical framework to study the static pull-in and also equilibrium behavior in electrostatically actuated torsional micromirrors. First the equation governing the static behavior of electrostatic torsion micromirrors is derived and normalized. Perturbation method, the method of straight forward expansion is utilized to find the pull-in angle of the mirror. Comparison of the presented results with numerical ones available in the literature shows that the proposed second order perturbation expansion gives very precise approximations for the pull-in angle of the mirror. Then straightforward perturbation expansion method is used again to analytically...