Sentence examples for existing models are from inspiring English sources

First, the existing models are proved wrong by the facts.

A group called the International Employee Stock Options Committee, supported by groups including the Business Software Alliance, Financial Executives International and the Nasdaq stock market, argued this week that "there is no accurate, reliable and meaningful method today to value stock options," and that valuations created by existing models are "inaccurate and misleading".

However, most existing models are based on smooth surface.

Advantages of this approach over the existing models are discussed.

Unfortunately, the existing models are incapable to give a rigorous quantitative estimate of the transmission coefficient.

Three existing models are considered: the Nagarajaiah-Ferrell, Iizuka, and Han-Warn models.

Finally, the results obtained from the experimental study, theoretical analysis and main existing models are compared.

Comparisons with existing models are presented for various shape and orientation of the coated inclusions.

However, existing models are essentially derived for vaporization occurring in sprays combustion.

Numerical simulation and existing models are also simultaneously conducted to validate this proposed mathematical models.

This makes them more effective in applications where existing models are ill-defined and not reliable enough.