'tightly close' is a correct and usable phrase in written English.
You can use it to describe something that is firmly shut. For example, "The lid of the jar was tightly closed."
In fact, the localization accuracies are tightly close when the minimum upper bounds are approximately the same, which is shown as enlarged party of Figs. 5 and 6.
We can observe that the curves of SLC-CFO and LC-CFO are tightly close at medium-to-high SNR values.
One of the most frequently used ways for a CFO estimator design is to adopt maximum-likelihood (ML) estimation, achieving high accuracy tightly close to the Cramer-Rao lower bounds (CRLBs).
These conformations are tightly close to optimal geometries obtained without any backbone constrain (also displayed in Fig. 11) and therefore it is highly probable that kink stabilization by non-bonding interactions can be expected in PMPSi chains.
As seen in Fig. 10a for the case of configuration 1, while GOFDM MMSE slightly outperforms OFDM, the BER curves of GFDM MMSE and DSIC/MF receivers are tightly close to that OFDM.
This indicates that the fraction of GFP+·CTB+ cells that disappeared between P1 and P3 was larger than estimated, although the cell population tightly close to other homotypic cells was sustained.
Littlenecks should have tightly closed, intact shells.
Avoid hard, tightly closed artichokes, which are difficult to grill.
But, unnervingly, her mouth is still tightly closed.
She nods, still keeping her mouth tightly closed.
The lips are held tightly closed, pushed forward a little.
