"focal focus" is correct and can be used in written English.
You can use it when you want to emphasize the importance of something or highlight the point you are trying to make. For example, "Having a reliable network connection is the focal focus of our IT team."
In the study, we further confirmed that TLE is not a focal focus, but a multifocal disease.
In the final study, H. Zhu and colleagues used resting-state MEG to identify the epileptogenic and other abnormal regions in patients with left temporal lobe epilepsy (TLE) and provided further evidence supporting the notion that TLE is not a focal focus but a multifocus disease.
The failure of SEEG to delineate a focal seizure-onset zone in this context could be due to two causes: (i) there was no clear focal focus generating the seizures which were instead triggered by a widespread epileptogenic network; and/or (ii) the seizure onset zone was not detected by SEEG due to inadequate spatial sampling of the implanted depth electrodes.
We previously reported on an alternative method for approaching multi-focal foci generation wherein a special laser cavity is employed that outputs beams that are both temporally and spatially separated [ 16].
"Focal length, focus, not in focus — I was just taken with the whole picture," Scorsese said.
It has lenses, focal length, focus, F-stop, distortion, depth of view and everything.
The thickness of the dielectric slab played an important role in effecting the optical performance of the liquid crystal microlens array device, including the dynamic focal range, focus diameter and symmetry of phase profile.
Moreover, the presence of a focal MEG focus increases the probability of successful seizure-onset zone localization through intracranial EEG and thus, of a good surgical outcome (Knowlton et al., 2008b).
Model designs of the diffractive axicon are carried out in order to convert multi-wavelength uniform beam and Gaussian beam into long focal depth focusing.
In this paper, to solve the above-mentioned problem and obtain long focal length focusing objective with short total measuring system length, the wide wavelength band telephoto superachromatic objective with less than 3/4 telephoto ratio is introduced.
To examine the defects of the positioning of two centrosomes with respect to substratum in Celastrol-treated mitotic cells, two images with different focal planes, focused on the gamma-tubulin staining of each pole, were taken along with alpha-tubulin staining in the spindles (Figure S1B).
