An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 14 Search : statistical
 nuclear statistical equilibrium (NSE)   ترازمندی ِ آماری ِ هسته‌ای   tarâzmandi-ye âmâri-ye haste-yiFr.: équilibre statistique nucléaire   In → nucleosynthesis models, the condition in which all nuclear species are in equilibrium under exchange of → protons and → neutrons. Matter in nuclear statistical equilibrium is characterized by a large abundance of iron peak nuclei. In such equilibria abundance of each nuclide can be calculated from repeated application of → Saha equation.→ nuclear; → statistical; → equilibrium. statistical   آماری   âmâri (#)Fr.: statistique   Of, pertaining to, consisting of, or based on → statistics.Statistic, from → statistics + → -al. statistical analysis   آنالس ِ آماری   ânâlas-e âmâriFr.: analyse statistique   The process of collecting, manipulating, analyzing, and interpreting quantitative data to uncover underlying causes, patterns, and relationships between variables.→ statistical; → analysis. statistical equilibrium   ترازمندی ِ آماری   tarâzmandi-ye âmâriFr.: équilibre statistique   A state in which the average density of atoms per cubic centimeter in any atomic state does not change with time and in which, statistically, energy is equally divided among all degrees of freedom if classical concepts prevail. statistical hypothesis   انگاره‌ی ِ آماری   engâre-ye âmâriFr.: hypothèse statistique   An assumed statement about the way a → random variable is distributed. A statistical hypothesis generally specifies the form of the → probability distribution or the values of the parameters of the distribution. The statement may be true or false. See also → null hypothesis. statistical hypothesis testing   آزمون ِ انگاره‌ی ِ آماری   âzmun-e engâre-ye âmâriFr.: test d'hypothèse statistique   A method of making decision between rejecting or not rejecting a → null hypothesis on the basis of a set of observations.→ statistical; → hypothesis; → test. statistical inference   دربرد ِ آماری   darbord-e âmâriFr.: inférence statistique   The process of inferring certain facts about a → statistical population from results found in a → sample.→ statistical; → inference. statistical law   قانون ِ آماری   qânun-e âmâri (#)Fr.: loi statistique   A law that governs the behavior of a system consisting of a large number of particles and which differs from the laws obeyed by each of the particles making up the macroscopic system. See also → dynamical law.→ statistical; → law. statistical mechanics   مکانیک ِ آماری   mekânik-e âmâri (#)Fr.: mécanique statistique   → statistical; → mechanics. statistical parallax   دیدگشت ِ آماری   didgašt-e âmâriFr.: parallaxe statistique   The mean parallax of a group of stars that are all at approximately the same distance, as determined from their radial velocities and proper motions.→ statistical; → parallax. statistical physics   فیزیک ِ آماری   fizik-e âmâri (#)Fr.: physique statistique   The branch of physics that applies methods of → probability theory and → statistics to the behavior of large numbers of microscopic particles (such as molecules, atoms, or subatomic particles) in order to explain and predict the overall properties of the system composed of such particles.→ statistical; → physics. statistical population   پرینش ِ آماری   porineš-e âmâriFr.: population statistique   Any collection of individuals or items from which → samples are drawn. See also → finite population, → infinite population. statistical thermodynamics   گرماتوانیک ِ آماری   garmâtavânik-e âmâriFr.: thermodynamique statistique   Same as → statistical mechanics. statistical weight   وزن ِ آماری   vazn-e âmâriFr.: poids statistique   1) Statistics: A number assigned to each value or range of values of a given quantity, giving the number of times this value or range of values is found to be observed. 2) Statistical mechanics: A multiplicative factor in the expression for the probability of finding a system in a given quantum state. Usually the number of degenerate substates contained in the state.→ statistical; → weight.