The phrase "ascent phase" is correct and usable in written English.
It can be used in contexts related to processes, such as aviation, project management, or personal development, where a stage of rising or improvement is being described.
Example: "During the ascent phase of the rocket launch, the vehicle gains altitude and speed as it leaves the atmosphere."
Alternatives: "climb phase" or "rise stage".
Soon after, Israel's Green Pine radar would begin to track the Scud, probably in the ascent phase.
In this paper, the feasibility of structured H∞ control design is demonstrated in representative environment for flexible launcher control during non-stationary ascent phase.
The aim of this work is to study the thermal behaviour of a payload carried by a long duration balloon during the ascent phase.
The accurate prediction of the structural response of spacecraft systems during launch and ascent phase is a crucial aspect in design and verification stages which requires accurate numerical models.
The ascent phase usually takes between 2 and 4 h, a very small period compared to the duration of the whole mission, which can last up to 4 weeks.
The conventional magnetic hard disks are augmented with solid state memory cards for the ascent phase of the flight because the gravitational force of the first three minutes of takeoff -- three times the normal force of gravity at sea level -- could harm the delicate mechanics of a conventional hard disk.
Dive parameters were calculated for both the descent and the ascent phases (Fig. 2).
This was mainly due to middle age penguins having shorter descent and ascent phases, while the bottom duration showed a similar trend but was not significantly different between the three classes (Table 1).
Using accelerometers, we show that during both the descent and ascent phases of dives, shags modelled their acceleration and stroking activity on the natural variation of buoyancy with depth.
Shags swim almost vertically during both the descent and the ascent phases, consequently minimizing the time of transit between the surface and the feeding grounds and back, thus reducing the O2 consumption of transport.
Data were corrected for surface drift and a number of parameters were automatically extracted for each dive: time of start and end of dives, maximum dive depth (m), total dive and post-dive duration (s), descent, bottom and ascent phases duration (s), and the number of undulations in the dive profiles (s).
