Sentence examples for become a difficult problem from inspiring English sources

The optimal allocation of FCLs, which determines the optimal locations, number and impedance of FCLs, has become a difficult problem.

Due to the uncertainty in tracking process, single maneuvering target tracking (MTT) has become a difficult problem in information fusion, particularly in clutter [1, 2].

The usual huge fluctuations in the blast furnace gas (BFG) generation make the scheduling of the gas system become a difficult problem.

However, consequent CIED-related infection has become a difficult problem which is difficult to diagnose and treat and expensive and is associated with a high fatality rate.

How to use the eddy current sensor to monitor the state of the bolted connection structure becomes a difficult problem.

So how to develop internet technology to solve these problems becomes a difficult problem for current computer experts and geo-science experts.

Moreover, reducing fuzzy data becomes a difficult problem because the handling of imprecision and uncertainty may cause information loss and/or deformation.

The extraction of retinal image network of blood vessels becomes a difficult problem in the retinal image processing and analysis [ 4– 6] for the following reasons: (1) the retinal blood vessel is full of small blood vessels; (2) the network of blood vessels is complex; and (3) the illumination is uneven when acquiring images leading to the fact that the retinal image contrast is low.

Therefore, considering the efficiency and mitigation effect, the optimal allocation of FCLs, in terms of their number, locations and impedances, has become a difficult multi-objective problem.

Obama described to Xi the exact kinds of problems the United States was concerned about regarding cyber thievery and said that if they were not addressed, it would become a "very difficult problem in the economic relationship," said Donilon.

But he alluded to her record as a disappearing diva in other houses, saying her cancellations have become "an increasingly difficult problem for us".