Sentence examples for difficult sample from inspiring English sources

This is a very difficult sample group to access and it would be very hard to provide empirical evidence - any claims would therefore be pretty speculative".

"It's a particularly difficult sample to work with".

Typical limitations of some existing machines include poor isometry, large organ bath volume or difficult sample mounting.

The limitation of this technique, however, stems from the difficult sample preparation, which may change the morphology of the cells [31].

Wombat is designed for experiments requiring rapid real time acquisition (time-resolved environmental or kinetics experiments) or very good signal to noise (experiments with difficult sample environments or small sample volumes).

The present findings provide fundamental insight into the reliability analysis on the metallic nanowire mesh hindered by difficult sample preparation and experimental measurement, which will be helpful to develop ideal metallic nanowire mesh-based TCE with considerable reliability.

Bridgman not only routinely attained pressures above 30,000 atm, but he also was able to study fluids and other difficult samples.

We applied TTAS on FFPE samples to evaluate its performance on difficult samples.

Thus, the new scheme focuses more on the difficult samples, which agrees with the working principle behind boosting.

Therefore, a new training sample selection method is introduced in this paper to include more "difficult" samples in subsequent boosting steps to get better boosting results.

Furthermore, a new sample selection scheme of the LDA-based booster is proposed to concentrate more on the "difficult" samples in the boosting process.