An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

Homepage

Number of Results: 3079 Search : on
 non-zero   نا-صفر   nâ-sefrFr.: non zéro, non nul   Not equal to zero.→ non-; → zero. non-zero polynomial   بلنامین ِ نا-صفر   bolnâmin-e nâ-sefrFr.: polynôme non nul   A → polynomial that at least has one non-zero → coefficient. See also → zero polynomial.→ non-zero; → polynomial. noncoherent scattering   پراکنش ِ ناهمدوس   parâkaneš-e nâhamdusFr.: diffusion incohérente   The absorption of a photon and its re-emission at a different frequency (in the observer's frame of reference) by scattering atoms. noncollisional plasma   پلاسمای ِ نا-همکوبشی   pelâsmâ-ye nâ-hamkubešiFr.: plasma non-collisionnel:   A plasma in which the → mean free path of the charged particles between two collisions is much larger than the size of the system containing the plasma.→ non-; → collisional; → plasma. nondimensional equation   هموگش ِ ناوامونی   hamugeš-e nâvâmuniFr.: équation non-dimensionnelle   An equation that is independent of the units of measurement as it only involves nondimensional numbers, parameters, and variables.→ non-; → dimensional; → equation. nonempty   ناتهی   nâtohi (#)Fr.: non vide   Describing something that is partially or totally occupied.→ non; → empty. nonempty set   هنگرد ِ ناتهی   hangard-e nâtohiFr.: ensemble non vide   A set containing at least → one → element.→ nonempty; → set. nonexistence   ناهستومندی، ناهستی   nâhastumandi, nâhastiFr.: non existence   Math.: The fact that no → solution exists for a given → problem. In mathematics, nonexistence usually is a matter of impossibility.→ non-; → existence. nonfuzzy   ناپرزوار   nâporzvârFr.: non flou   Not → fuzzy. → nonfuzzy set.→ non-; → fuzzy. nonfuzzy set   هنگرد ِ ناپرزوار   hangard-e nâporzvârFr.: ensemble non flou   A set that obeys the rules of → classical logic, a → crisp set, as contrasted with a → fuzzy set.→ nonfuzzy; → set. nonholonomic system   راژمان ِ ناهروداتیک   râžemân-e nâharudâtikFr.: système non holonomique   A mechanical system with constraints on their velocity that are not derivable from position constraints. Nonholonomic systems arise, for instance, in mechanical systems that have rolling contact (for example, the rolling of wheels without slipping) or certain kinds of sliding contact (such as the sliding of skates). They are a remarkable generalization of classical Lagrangian and Hamiltonian systems in which one allows position constraints only.→ non-; → holonomic; → system. nonhomogeneous   ناهمگن   nâhamgen (#)Fr.: non homogène   Not homogeneous. → nonhomogeneous linear differential equation.→ non-; → homogeneous. nonhomogeneous linear differential equation   هموگش ِ دگرسانه‌ای ِ خطی ناهمگن   hamugeš-e degarsâne-yi-ye xatti nâhamgenFr.: équation différentielle linéaire non homogène   A → linear differential equation if Q(x)≠ 0 on interval I.→ nonhomogeneous; → linear; → differential; → equation. nonionized   نایونیده   nâyonidé (#)Fr.: non-ionisé   The quality of an atom that has neither lost nor gained any electrons.→ non-; → ionized. nonlinear   ناخطی   nâxatti (#)Fr.: non-linéaire   Not a linear function of the relevant variables. Containing a variable with an exponent other than one; opposite of → linear.→ non-; → linear. nonlinear device   دستگاه ِ ناخطی   dastgâh-e nâxattiFr.: dispositif non-linéaire   An electronic device whose output is not directly proportional to its input. For example, in a → diode the current is a nonlinear function of the voltage; its voltage-current characteristics do not obey → Ohm's law.→ nonlinear; → device. nonlinear dynamics   توانیک ِ ناخطی   tavânik-e nâxattiFr.: dynamique non-linéaire   Same as → chaos.→ nonlinear; → dynamics. nonlinear instability   ناپایداری ِ ناخطی   nâpâydâri-ye nâxattiFr.: instabilité non-linéaire   The instability of a physical or mathematical system that arises from the nonlinear nature of relevant variables and their interactions within the system.→ nonlinear; → instability. nonlinear system   راژمان ِ ناخطی   râžmân-e nâxattiFr.: système non-linéaire   A system in which small changes can result in large effects, and large changes in small effects.→ nonlinear; → system. nonlinearity   ناخطیگی   nâxattigiFr.: non-linéarité   The property, condition, or state of being → nonlinear.→ non-; → linearity.