Sentence examples for challenging difficulty from inspiring English sources

Both mentor and acolyte were largely unscathed by Cubism and its challenging difficulty.

Oil/water well casing damage is a challenging difficulty to oil reservoir engineering.

Accumulation of nitrite intermediate in autohydrogenotrophic denitrification process has been a challenging difficulty to tackle.

I fared miserably again, and pride compelled me to point out that I had beaten Gears 1 on its most challenging difficulty level.

The choreography is fairly accessible and ramps up with a pleasantly challenging difficulty curve, and the training mode is excellent, letting you break down songs by individual moves to practise properly.

A challenging difficulty in solving the radial Dirac eigenvalue problem numerically is the presence of spurious (unphysical) eigenvalues, among the genuine ones, that are neither related to mathematical interpretations nor to physical explanations.

Although much progress has been made for the time-delay systems in the adaptive control field, some challenging difficulties still remain.

In noisy and reverberant environments, the problem of acoustic source localisation and tracking (ASLT) using an array of microphones presents a number of challenging difficulties.

In particular, the use of Dempster Shafer theory of evidence within Markov models has brought some keys to several challenging difficulties that the conventional hidden Markov models cannot handle.

Indeed, they do not find challenging difficulties in accessing unskilled and semi-skilled manual jobs, as they experience in self-employment and non-manual jobs (Fullin and Reyneri 2011).

But for me, these Portuguese vines, many of them so old, yet still so remarkably fine, present the most challenging difficulties of them all...simply because of where they are.