Fr.: non résolu
Describing an image whose constituent or elementary parts are not resolved. → unresolved source.
Fr.: source non résolue
A source of radiation whose angular size is too small for details of its structure to be revealed.
Fr.: image floue
An image in which finer details are not visible. → blurred image
Fr.: masque floue
A process for amplifying fine details in a registered image. Generally speaking, the process consists of creating a mask which contains larger scale features of the image and then subtracting the mask from the initial image.
atom-e nâpâydâr (#)
Fr.: atome instable
Fr.: équilibre instable
An equilibrium state of a system in which if a small perturbation away from equilibrium is applied, the system will move farther away from equilibrium state. For example, mechanical equilibrium in which the potential energy is a maximum, as a sphere placed on top of a hill. Mathematically, if the second derivative of the energy with respect to the coordinate of interest is negative, the system is in an unstable equilibrium. → stable equilibrium.
The brightest star as well as the Alpha star of → Serpens, thus also known as α Serpentis. It is a third magnitude (V = 2.65) an orange giant of spectral type K2 with a radius 15 times as large as that of the Sun and a surface temperature of 4300 kelvins. It is approximately 73.2 light years from Earth. Unukalhai is in fact a triple star system. The second star (α Serpentis B) is 58 arcseconds from the primary and has a magnitude of 11.8. The third star (α Serpentis C), 13th magnitude, lies 2.3 arcminutes from A. Other designations: Cor Serpentis, HR 5854, HD 140573.
From Ar. 'unuq al-hayyah (
Fr.: en haut
To, toward, or in a more elevated position.
M.E. up(pe) (adv.), O.E. up(p) "to a higher position;" cf. O.Frisian up, O.S. up, M.Du. up, op, O.N. upp; O.H.G. uf; (Ger. auf), Goth. iup.
Bâlâ "up, above, high, elevated, height" (related to boland "high," borz "height, magnitude" (it occurs also in the name of the mountain chain Alborz), Lori dialect berg "hill, mountain;" Mid.Pers. buland "high;" O.Pers. baršan- "height;" Av. barəz- "high, mount," barezan- "height;" cf. Skt. bhrant- "high;" L. fortis "strong" (Fr. & E. force); O.E. burg, burh "castle, fortified place;" Ger. Burg "castle;" Goth. baurgs "city;" E. burg, borough; Fr. bourgeois, bourgeoisie, faubourg); PIE base *bhergh- "high."
1) farâz-padâk; 2) farâz-padâkidan
Fr.: 1) rampe, montée; 2) promouvoir, revaloriser
1a) An incline going up in the direction of movement.
1) bârgozâštan; 2) bârgozâri (#)
Fr.: 1) mettre en ligne; 2) mise en ligne
bâlâ (#), zabarin (#)
Higher, as in place, position, pitch, or in a scale.
havâsepehr-e zabarin, javv-e ~
Fr.: atmosphère supérieure
The general term applied to the atmosphere above the → troposphere.
Fr.: culmination supérieure
Same as → superior culmination.
tarâz-e bâlâ (#), ~ zabarin (#)
Fr.: niveau supérieur
In atomic physics, an initial energy state in an emission transition.
hadd-e bâlâ (#), ~ zabarin (#)
Fr.: limite supérieure
Of an integral operator, the point at which the integration ends.
Fr.: manteau supérieur
upper mass cut-off
bore-ye bâlâyi-ye jerm, ~ zabarin-e ~
Fr.: coupure aux masses élevées
Same as → upper mass limit.
upper mass limit
hadd-e bâlâyi-ye jerm, ~ zabarin-e ~
Fr.: limite supérieure de masses
The highest mass range admitted in a star formation model. The high mass end of the → initial mass function. The upper mass limit is a critical parameter in understanding → stellar populations, → star formation, and → massive star feedback in galaxies.
gozar-e zabarin (#)
Fr.: passage supérieur
The movement of a celestial body across a celestial meridian's upper branch. Same as → upper culmination.