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The abstract is about catalyst and the patent is about stop control. Does it make sense? I suppose there is an error somewhere in the files?

By the way I found the patent as I was looking for equations such as they are listed. I derived the similar ones by symbolic derivative in mathcad.

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There is no patent number in this post. Please add it so someone might be of help. –  George White May 12 at 19:19

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