Sentence examples for been an open issue from inspiring English sources

The mechanism of biospinning of natural silk fibers has been an open issue for decades.

"This has been an open issue for 60 years, it is too large an issue to fit into the confines of the fiscal crisis," he said.

For many years, providing an algorithm to generate hexahedral meshes that fulfill minimal geometric criteria (boundary-alignment, minimum of singularity vertices) and that is not limited to a category of geometries has been an open issue.

Although Afghan anger over the raid has been an open issue since it was revealed in news reports this month, it is only now that the full purpose of the Afghan operation that prompted the raid has been detailed by American and Afghan officials.

The lay-out of a numerical solution procedure for the strain gradient flow (rate-independent) theory by Fleck and Willis [A mathematical basis for strain-gradient theory – Part II: Tensorial plastic multiplier, 57 1045 1057; 2009, JMPS] has been an open issue, and its finite element implementation is yet to be completed.

The design of practical nonlinear analog coding schemes has always been an open issue.

The damage localization of rocks is an open issue in rock engineering.

How effective an approach that is, Mr. Fleischer said, "is an open issue.

In 2006 he said that the contract of VW's then chief executive was "an open issue".

Based on recent literature, the modeling of this fluid system is an open issue and potentially controversial.

The uncertainty and variability of the Renewable Energy Sources RESS) power plants within the power grid is an open issue.