An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 10 Search : partition
disk partition
  پرکش ِ دیسک، ~ گرده   
parkeš-e disk, ~ gerde

Fr.: partition de disque   

A logical division of a hard disk that is treated as a separate unit by operating systems and file systems.

disk; → partition.

equilibrium partitioning
  پرکه‌بندی ِ ترازمند   
parkebandi-ye tarâzmand

Fr.: équilibre de partition   

A concept whereby chemical → concentrations among geological or environmental media are at equilibrium, and therefore the partitioning of metals in those media can be predicted based on → partition ratios.

equilibrium; → partitioning.

equipartition of energy
  هموگپرکش ِ کاروژ   
hamugparkeš-e kâruž

Fr.: équipartition de l'énergie   

1) General: Equal sharing of the → total energy among all → components of a → system.
2) In the → kinetic theory of gases, the → theorem according to which → molecules in → thermal equilibrium have the same average energy (1/2 kT) associated with each independent → degree of freedom of their motion.

equi-; → partition.

integer partition
  پرکش ِ درسته   
parkeš:-e doroste

Fr.: partition des entiers   

An expression of an integer nas the sum of one or more positive integers. The number of different partitions of n is denoted p(n). This function is called the partition function. For example, p(5) = 7, because 5 can be partitioned as: 5 = 5 = 4 + 1 = 3 + 2 = 3 + 1 + 1 = 2 + 2 + 1 = 2 + 1 + 1 + 1 = 1 + 1 + 1 + 1 + 1.

partition; → integer.

partition
  ۱) پرکه؛ ۲) پرکش؛ ۳) پرکیدن   
1) parke; 2) parkeš 3) parkidan

Fr.: 1, 2) parition, cloison, division; 3) cloisonner, diviser   

1a) A division into or distribution in portions or shares.
1b) A separation; something that separates or divides; a part, division, or section.
2a) The act or process of dividing something into parts. The state of being so divided.
2b) Math.: → integer partition; → set partition.
2c) Computers: → disk partition.
3) To divide into parts or portions. To divide or separate by a partition.

M.E., from O.Fr. particion, from L. partition- "division, partition, distribution," from p.p. stem of partire "to part, divide," from PIE root *per- "to grant, allot," related to → part and akin to pake, as below.

Parke, from Kermâni parke "piece, part, fragmant," related to pâr "→ part;" parkidan, infinitive from parke; parkeš, verbal noun of parkidan.

partition function
  کرپای ِ پرکش   
karâ-ye parkeš

Fr.: fonction de partition   

See → integer partition.

partition; → function.

partition ratio
  وابر ِ پرکش   
vâbar-e parkeš

Fr.: rapport de partition   

The ratio of the → concentration of a → solute in a single definite form in the stationary phase to its concentration in the same form in the other phase at equilibrium.

partition; → ratio.

partitioning
  پرکه‌بندی   
parkebandi

Fr.: partition   

A chemical separation process whereby a solute is distributed between two phases.

partition; → -ing.

partitionment
  پرکه‌بندی   
parkebandi

Fr.:   

The act or fact of being partitioned.

partition; → -ment.

set partition
  پرکش ِ هنگرد   
parkeš-e hangard

Fr.: partition d'un ensemble   

A collection of → nonempty subsets of a set A such that every element of A is in exactly one of the subsets. In other words, A is the → disjoint  → union of these subsets.

partition; → set.