The phrase "a substantial phase" is correct and usable in written English.
It can be used to describe a significant or important stage in a process or development.
Example: "The project entered a substantial phase where key decisions needed to be made to ensure its success."
Alternatives: "a significant stage" or "a major phase".
The circadian system appears most sensitive to light with short wavelengths and light therapy with light of around 470 nm is able to induce a substantial phase advance [ 51].
Flies were subjected to a 30-min light pulse during the early night (3 h after lights-off), a stimulus which causes a substantial phase delay of the circadian rhythm.
A substantial phase II/III trial assessing efficacy in patients with all causes of malignant ascites including primary gastrointestinal tumours commenced in September 2004 (250 patients), and a Phase IIa study of platinum refractory ovarian cancer patients is also underway.
On the other hand, tomography may be less sensitive to surface ripples as it relies on the line integral along rays which is not much affected by thin surface ripples that do not yield a substantial phase deviation on the transmitted ray.
These negative results confirm that a 2 hr 30°C pulse alone is unable to cause a substantial phase-shift.
The 1-year global health fellowship includes a strategic mentoring support plan, including a substantial preparation phase prior to field deployment and continuing after the research year is completed, to ensure the highest quality research publications and scientific meeting presentations, and maximum trainee success in obtaining research and career development grants.
The existence of such a substantial initial phase indicates that the influence of the starting configuration does not die out until after (roughly) half of the total simulation time has passed by.
Note substantial phase shift between temperature distribution and melting.
However, substantial phase jumps in the 1850s and 2000s are clearly visible in all the cases, and their epochs are contemporary with the minima of the CW amplitude as shown in Fig. 2. So, we can conclude that the well-known event in the 1920s of the simultaneous deep minimum of the CW amplitude and the large phase jump may be not unique.
Hence, the westerly and easterly QBO zones determined at pressure levels 10 20 hPa may have substantial phase shifts compared to the same zones obtained at 50 70 hPa, and even opposite wind directions at these levels are often supposed (e.g., Giorgetta et al. 1999; Krismer and Giorgetta 2014).
GAL4 lines that exhibit substantial phase delays label the PDF-positive pacemaker neurons.
