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注册: 2011-06-07

[求助] 请问有用AQUASIM软件做模拟的么？~

各位好，我们在用aquasim实现ADM1中的parameter estimation一步中，遇到了问题，希望得到大家的帮助。
软件提示problem during parameter estimation (see log file for details)
log file 里是这样的，
Parameter estimation
--------------------

Number of parameters:                            14
Number of data points:                            17

06/25/2011 22:44:43  Start of calculation
06/25/2011 22:44:43  Chi^2 = 45.2345
06/25/2011 22:44:43  Chi^2 = 45.2262
06/25/2011 22:44:43  Chi^2 = 45.1909
06/25/2011 22:44:43  Chi^2 = 45.2295
06/25/2011 22:44:43  Chi^2 = 45.2345
06/25/2011 22:44:43  Chi^2 = 45.2342
DASSL--  AT CURRENT T = 178.286 1000 STEPS
DASSL--  TAKEN ON THIS CALL BEFORE REACHING TOUT.
Integration problem for calculation number 0
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2318
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
06/25/2011 22:44:45  Chi^2 = 45.2345
*** Solution not enough sensitive to this parameter
06/25/2011 22:44:45  Chi^2 = 45.237
*** Solution not enough sensitive to some parameter(s)
06/25/2011 22:44:45  End of calculation

*** Calculation stopped due to numerical problems ***
现在不知道该从哪里入手呢，有谁知道解决办法么。。谢谢了。。

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