Sentence examples for model are difficult from inspiring English sources

Damping in RC bridges is a complex phenomenon, and its precise description and representation in a FE model are difficult.

Chemical engineering problems formulated as mixed integer nonlinear programming (MINLP) model are difficult to solve when the model is non-convex.

Therefore, alternatives to the standard solution –the preferred model– are difficult to consider.

Structural uncertainties within a model are difficult to quantify.

As others have noted, departures from this multiplicative model are difficult to detect.

Furthermore, the parameters of the breast tissue-aging model are difficult to interpret from a relative risk perspective.

Its educational model is difficult to find elsewhere in the United States.

The LeBron model is difficult to resist because the quick-fix lottery mentality is part of the American ideal.

The low-cost model is difficult to transfer from short-haul flights to long-haul ones.

Constructing the model was difficult, he recalled: "I was using dental picks and surgical 3-D glasses and I learned how to carve little eyes in the wood benches".

However, the accuracy of the model was difficult to validate.