Sentence examples for troublesome challenge from inspiring English sources

The second part of the paper turns to a more troublesome challenge.

Mechanical alloying is a promising method for preparing Cu-Cr alloy powder, while some troublesome challenges in cost and efficiency have yet to be solved.

But Google's focus on the social space also pits the company against social networking giant Facebook, creating a competition that, according to the AP, is one of the most troublesome challenges facing Page as CEO.

One of the most troublesome moral challenges involves money.

However, like Roche 454, SOLiD™ and MethylSeq™ are based on emulsion PCR which can be troublesome and technically challenging.

Directing for the opera house is a discipline with its own distinct demands, and the scale of the Metropolitan Opera's stage adds another troublesome factor to the challenge.

If the new student demonstrations are anything like those during the six days of unrest in July, the political implications for Mr Khatami will be troublesome.An even more direct challenge to Mr Shahroudi was behind a ruling by a special press court two weeks ago, ordering a liberal newspaper, Neshat, to shut down.

The second challenge is more troublesome.

But the seam bowler says he is confident he can manage his troublesome knee and help Glamorgan challenge for promotion from Division Two of the County Championship.

His internal challenges are more troublesome because he needs to surround himself with a strong cadre of competent people well-steeped into the ins and outs of governance.

Since the analysis of NPs in consumer products and environmental samples is particularly troublesome, a detailed description of challenges and limitations is given here.