Sentence examples for methods still remain from inspiring English sources

Synthesis of nitrogen-doped graphene (NG) is of great importance and conventional synthesis methods still remain huge challenges due to uncontrollable nitrogen doping content and complicated experimental procedure.

While it is the new approaches which are the driving force behind the rapid development of our knowledge, many traditional methods still remain important.

Unsteady-state method still remained widely utilized to estimate relative permeabilities.

This family of Bayesian methods unfortunately still remain unemployed in the field due to the need for smart assumptions on parameters' prior distributions and their costliness in calculation of bulky integrals despite promising effort regarding the second obstacle [ 15, 16].

These settings were chosen to emphasise the differences between the tested methods, and even though the observed differences might be smaller if the model is more complex, the covariate is less influential and/or the fraction of individuals lacking information about the covariate is smaller, the relative differences between the methods will still remain.

However, improving the precision and devising the most effective methods of evaluation still remain a challenge for future development.

The number of circulating Tregs in vivo is low, and purification methods in vitro still remain inefficient.

This strategy is attractive for some reasons such as facile and reproducible synthetic methods, though challenges still remain if ones try to incorporate targeting moieties and biocompatible coating on the single external surface of those NPs.

While its popularity has raised total use in many settings, it is a short-acting method, and questions still remain about the frequency of its discontinuation and switching to other methods.

Even though the preparation of matrix-matched standards seems to be the most straightforward method, some problems still remain.

Although clinical trials could summarize general results regarding different osteotomy methods, many fundamental issues still remain controversial and poorly understood.