Sentence examples for difficult to constrain from inspiring English sources

It is therefore difficult to constrain permeable reservoirs.

The fate of Fe2+ in the experiments reported here is difficult to constrain.

For example, the dust size distribution may be variable and is difficult to constrain.

However, the stress condition is difficult to constrain prior to the earthquake.

The properties that we have evaluated are very difficult to constrain without direct information from rocks sourced from the reservoir.

The model has a direct dependence on the estimate of specific yield, a difficult to constrain parameter, which we estimate from previously published soil analyses.

With the current data available, however, it was difficult to further constrain the H2O content in IBM magmas.

Since it is difficult to further constrain the value of ω, we refer to the most relaxed condition (ω = 3.8) in the following calculations.

It is generally time-consuming and difficult to accurately constrain the extent and thickness of volcanic ash layers, and the spatial variation of impacts on the flora, fauna and human activities from field surveys.

In particular, it is difficult to accurately constrain costs such as volunteer and labourer coordination, resource procurement (e.g., purchased, hired, or donated), and machinery wear and tear due to infiltration by volcanic ash into air intake filters (Brown et al. 2011a; Hayes et al. 2015).

However, appropriately selective small molecule agents are often unavailable, especially for intracellular targets, and pharmacological effects are difficult to spatially constrain at the cellular level.