PNG IHDR x E )] pHYs gR tIMES "tEXtCreation Time 30-Apr-2009 01:27:25ok $tEXtSoftware MATLAB, The Mathworks, Inc.R IDATxђPsc}|NIM cD`O q F `- i 8F `- i 8F `- i 8W w4Mx>_C H@C[rl'bGZz-{N Ρ-ⳣx}q_>k