Essentially, the perfective aspect looks at an event as a complete action, while the imperfective aspect views an event as the process of unfolding or a repeated or habitual event ( thus corresponding to the progressive / continuous aspect for events of short-term duration and to habitual aspect for longer terms ).

Computations based on the theory presented in the review produce radiation parameters ( intensity and duration time versus wavelength ) that match experimental results with errors no larger than expected due to some simplifications ( e. g., assuming a uniform temperature in the entire bubble ), so it seems the phenomenon of sonoluminescence is at least roughly explained, although some details of the process remain obscure.

Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch.

The duration of the folding process varies dramatically depending on the protein of interest.

A consequence of the eight second limit on the duration of each note is that if one wants to play chords that last longer than eight seconds, one must release different notes in sequence in a process that has been compared to a spider crawling across the keyboard.

The composer ’ s model for the distributive serial process corresponds to a development of the Zwölftonspiel of Josef Matthias Hauer " ( Maconie 2005, 56 ), and Goeyvaerts, in such a work as Nummer 4, provides a classic illustration of the distributive function of seriality: 4 times an equal number of elements of equal duration within an equal global time is distributed in the most equable way, unequally with regard to one another, over the temporal space: from the greatest possible coïncidence to the greatest possible dispersion.

The duration of the collision is much shorter than the lifetime of the emission process.

The duration of the influence is much longer than the lifetime of the emission process.

This process is predicted to happen to all Mira variables, but the relatively short duration of thermal pulses ( a few thousand years ) over the asymptotic giant branch lifetime of the star ( a few million years ), means we only see it in a few of the several thousand Mira stars known, possibly in R Hydrae.

It is applicable to projects of varying complexity, small or large, of short or long duration, in different environments, and irrespective of the kind of product or process involved.

Reinforcement is a term in operant conditioning and behavior analysis for a process of strengthening a directly measurable dimension of behavior — such as rate ( e. g., pulling a lever more frequently ), duration ( e. g., pulling a lever for longer periods of time ), magnitude ( e. g., pulling a lever with greater force ), or latency ( e. g., pulling a lever more quickly following the onset of an environmental event )— as a function of the delivery of a stimulus ( e. g. money from a slot machine ) immediately or shortly after the occurrence of the behavior.

In most cases, the process will not be of short duration ; corporate development is usually a process that takes place over an extended period of time and may be adjusted or refined as the project moves forward.

While the bone formation usually spans the entire duration of the healing process, in some instances, bone marrow within the fracture has healed two or fewer weeks before the final remodeling phase.

where denotes the process limited to duration, and or simply denotes the entropy rate of, which must exist for all discrete-time stationary processes including the ergodic ones.

Many long duration trials on these applications have been made and thanks to the high destruction efficiency of 99. 9 %+ the solid residue after the SCWO process is well suited for recycling.

For this reason, searing is sometimes done at the end of the cooking process to gain the flavor benefits of the caramelization, as well as the benefits of cooking for a greater duration with more wetness.

The review process often involves an evaluation of the appropriateness of the drug therapy ( e. g., drug choice, dose, route, frequency, and duration of therapy ) and its efficacy.

The conversion process can reach peak efficiencies of about 80 percent for a laser pulse that has a flat temporal shape, but the temporal shape needed for ignition varies significantly over the duration of the pulse.

Even though one's eyes fixate on every word and space during the process of reading, speed reading can occur when the number of eye pauses and duration of fixations are minimized.

In the past the employment-based green card process used to take only a few years, less than the duration of the H-1B visa itself.

Since the duration of the H-1B visa hasn't changed, this has meant a lot more H-1B visa holders have to renew their visas in one-year or three-year increments to continue to be in legal status while their green card application is in process.

In 1975, Hayek admitted that he made a mistake in the 1930s in not opposing the Central Bank's deflationary policy and stated the reason why he had been ambivalent: " At that time I believed that a process of deflation of some short duration might break the rigidity of wages which I thought was incompatible with a functioning economy .< ref > White, Clash of Economic Ideas, p. 94.

Alfa Laval now divides its operations between equipment ( capital sales ) and process technology ( contracts with longer duration ).

The duration of the disease varies greatly, but sporadic ( non-inherited ) CJD can be fatal within months or even weeks ( Johnson, 1998 ).

The duration of these phases varies from one day for locations right on the Arctic Circle to several months near the North Pole.

The association with track length and duration also varies, although longer track tornadoes tend to be stronger .< ref name =" width / length intensity relationship "> In the case of violent tornadoes, only a small portion of the path is of violent intensity, most of the higher intensity from subvortices.

The size of the grid ( most commonly 8 × 8, 10 × 10, or 12 × 12 ) varies from board to board, as does the exact arrangement of the snakes and ladders, with both factors affecting the duration of play.

The duration of the courtship varies vastly.

The duration of individual stints varies from just a few days to as much as several weeks, during which the incubating bird can lose a considerable amount of weight.

The maximum flight duration of unmanned, aerial vehicles varies widely.

Song duration and structure varies among and even within groups, but most songs have the following three-phase pattern.

The primary emission of the extremely hot outer atmosphere of the sun, the solar corona, is at X-ray wavelengths and the extended duration, high resolution X-ray imagery from Yohkoh are being analyzed in an effort to learn why the sun has a corona at all and why it varies in intensity so strongly in response to the 11-year sunspot cycle.

The duration of labour varies widely, but active phase averages some 8 hours for women giving birth to their first child (" primiparae ") and shorter for women who have already given birth (" multiparae ").

The determination of alimony varies greatly from country to country and from state to state within the U. S. Some state statutes, including those of Texas, Montana, Kansas, Utah, Kentucky and Maine, give explicit guidelines to judges on the amount and / or duration of alimony.

Winter varies from mild to chilly by U. S. standards, with lighter rain showers of longer duration.

The duration of the interval varies.

The duration of support orders varies both by jurisdiction and by case.

The duration of the twilight period between dawn and sunrise varies greatly depending on the observer's latitude, from a few minutes in equatorial regions to many hours in polar regions.

The number of Messier objects visible in any one night varies depending on a few factors, including the location of the observer, the duration of daylight / nighttime, and the season ( the positions of the Messier objects relative to the sun varies with the season ).

The duration of each episode varies depending on the individual series.

The duration varies between individuals, and can range from a month to years.

The duration of French internships varies from 2 to 6 months.

The nominal duration of doctoral programmes is two or three years, but the actual time to graduate varies considerably and is generally longer than that.

Depending on the distance and fitness the duration of this gliding phase varies.