A simplified formulation for calculation of minority-carrier effective lifetime

A complement to period/frequency estimation of a nonlinear oscillator

“…However, all formulae cannot obtain a more accurate solution. Some famous analytical methods, e.g., the homotopy perturbation method [4][5][6][7][8][9][10][11][12][13] and the variational iteration method, [14][15][16] can continue their solution processes until a needed accuracy is obtained. This paper tries to give an effective modification so that any accurate solutions can be obtained.…”