Sentence examples for this model needed from inspiring English sources

And why is this model needed?

This model needed to be emulated.

This model needs the gas mixture compositions.

However, this model needs to be recharged after every six-kilometre trip, and in cities prone to blackouts caused by storms and hurricanes, would result in chaos.

This model needs to go beyond the conventional "isms" (communism and capitalism) of the 20th century, all of which were focused on "growth at all costs".

Many think this model needs to be changed because it incentivizes physicians to do more (and more expensive) procedures, regardless of the effect they have on patient outcomes.

There are questions about how much the idea would affect electricity prices, and Butler concedes "everyone including Frank has recognised that this model needs a lot more work to develop".

This model needs to account fully for complicated dynamic reactor behaviour and, in addition, has to include a specific noise model that is capable of reproducing the disturbances observed in SSF bioreactor measurements.

Though this model needs refinements such as a smaller spatial resolution, it provides insight into responses of B. microplus or B. annulatus populations to specific weather patterns, habitat heterogeneity, and host movement.

The question, then, is whether this model needs disruption?

This model needs to be further explored in order to account for more precise metastasis characteristics.