A range of officials acknowledged the difficulty of designing a military strike option effective enough to set the Iranian program back for many years.
Historically it was the difficulty of designing efficient compressors, even more than efficient turbines, that delayed the development of the gas-turbine engine.
The zinc finger technology has taken many years to prepare because of the difficulty of designing the fingers and also of preventing them from cutting the genome in the wrong places.
This is because the insertion of backdoors in a software product, particularly those that can be used to obtain unencrypted user communications or data, significantly increases the difficulty of designing a secure product".
There are many reasons it's a problem – durability, pocket passing prowess and the sheer difficulty of designing an offense when the passer can't see over his linemen, to name a few.
One reason is the difficulty of designing successful experimental evaluations.
This method can avoid the difficulty of designing the adaptive feedback gain equations.
"The developments highlight the difficulty of designing long-term policies around volatile crude-oil and gasoline prices," they write.
Several factors contribute to the difficulty of designing and building very wideband amplifiers.
We describe a new approach for understanding the difficulty of designing efficient learning algorithms.
