persistence


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persistence

[pər′sis·təns]
(electronics)
A measure of the length of time that the screen of a cathode-ray tube remains luminescent after excitation is removed; ranges from 1 for short persistence to 7 for long persistence.
A faint luminosity displayed by certain gases for some time after the passage of an electric discharge.
(meteorology)
With respect to the long-term nature of the wind at a given location, the ratio of the magnitude of the mean wind vector to the average speed of the wind without regard to direction. Also known as constancy; steadiness.

persistence

(programming)
A property of a programming language where created objects and variables continue to exist and retain their values between runs of the program.

persistence

(hardware)
The length of time a phosphor dot on the screen of a cathode ray tube will remain illuminated after it has been energised by the electron beam. Long-persistence phosphors reduce flicker, but generate ghost-like images that linger on screen for a fraction of a second.

persistence

(1) In a CRT, the time a phosphor dot remains illuminated after being energized. Long-persistence phosphors reduce flicker, but generate ghost-like images that linger on screen for a fraction of a second.

(2) In object technology, the storage of an object on a permanent storage device such as a disk or SSD. See persistent data and persistent name.
References in periodicals archive ?
"Smoking is a potentially modifiable risk factor for PAVM embolization persistence in patients with HHT after embolotherapy," the authors write.
There are many reasons that nontraditional students struggle with persistence, and these reasons often relate to the unique needs and characteristics of this demographic of students.
If you would like to know more about students at your school or youth-based organization becoming mentees with Persistence is The Key or to become a mentor visit www.persistenceisthekey.org
May we continue to seek His will even as we lift up our prayers with "shameless persistence."
where Dgm(x) represents the persistence diagram (i.e.
A direct approach shows a decrease of persistence by income smoothing, in Brazilian market, for 2004-2013 period as a whole (Kolozsvari and Macedo, 2016).
Our objective was to evaluate the persistence of relative abundance for selected species collected from one of the fixed-station trawl surveys conducted by the North Carolina Division of Marine Fisheries (NCDMF).
In this current study, we investigate the inflation persistence for BRICS countries, and to the best of our knowledge, this becomes the first study to do so for this group of emerging economies.
"The Persistence" comes with a companion smartphone app.
In "The puzzling persistence of place" (Federal Reserve Bank of Philadelphia Business Review, Second Quarter 2015), Jeffrey Lin asks three questions about neighborhoods, cities, and regions that have endured despite changes in their circumstances that would have caused other neighborhoods, cities, and regions to fall by the wayside in one way or another: "Why haven't these urban patterns changed over decades, centuries, or even millennia?