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Number of Results: 47 Search : theory

group theory negare-ye goruh (#) Fr.: théorie des groupes A branch of mathematics concerned with structures called
→ |

information theory negare-ye azdâyeš (#) Fr.: théorie de l'information The mathematical theory that defines, quantifies,
and analyzes the concept of → → |

Jordan-Brans-Dicke theory negare-ye Jordan-Brans-Dicke Fr.: théorie de Jordan-Brans-Dicke A relativistic theory of gravitation which involves a → Named after the creators, Carl Brans (1935-) and Robert Dicke (1916-1997),
who presented the theory in 1961, based on the initial work of Pascual Jordan
(1902-1980); → |

kinetic theory of gases negare-ye jonbeši-ye gâzhâ (#) Fr.: théorie cinétique des gaz A theory that explains macroscopic properties of gases, such as pressure, temperature, or volume, by considering their molecular composition and motion. |

linear perturbation theory negare-ye partureš-e xatti Fr.: théorie de perturbation linéaire Assumption that the variations in the plasma parameters, due to the presence of waves, are small (to the first order) as compared to the undisturbed parameters. This makes it possible to linearize equations by dropping out second order (and higher) nonlinear terms. → |

Mestel theory negare-ye Mestel Fr.: théorie de Mestel The first quantitative model showing that the energy of
→ L > 10), latent heat
of crystallization release (important for ^{-1.5} L_{sun}L < 10),
nuclear energy generation via proton-proton burning (important when
^{-4} L_{sun}M), and gravitational energy
release from surface layers. The Mestel theory is a very good approximation of
more recent calculations. For a review of the Mestel theory see Van Horn (1971, IAU
Symp. 42, 97; W. J. Luyten, Editor), Wood (1990, J. Roy. Astro. Soc. Canada 84, 150), and
Kepler and Brdaley (1995, Baltic Astron. 4, 166)._{H} ≥ 10^{-4} M_{*}Named after Leon Mestel (1927-), British astrophysicist, who put forward this theory in
1952 (MNRAS, 112, 583); → |

Mie theory negare-ye Mie Fr.: théorie de Mie The explanation of the → → |

mixing length theory (MLT) negare-ye derâzâ-ye âmizeš Fr.: théorie de la longueur de mélange A theory dealing with heat transport by → |

number theory negare-ye adadhâ Fr.: théories des nombres The branch of mathematics that studies the relationship between integers and their generalization. |

Orion correlation theory negare-ye hambâzâneš-e Oryon Fr.: théorie de la corrélation d'Orion A controversial proposition according to which a coincidence would exist
between the mutual positions of the three stars of
→ → |

phlogiston theory negare-ye fložiston Fr.: phlogistique An obsolete theory of combustion in which all flammable objects were
supposed to contain a substance called → → |

probability theory negare-ye šavânâyi Fr.: théorie des probabilités A branch of → → |

quantum field theory negare-ye kuântomi-ye meydân Fr.: théorie quantique des champs The quantum mechanical theory based on the assumption that
the interactions between particles and fields are mediated by
messenger particles. Accordingly, particles are
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quantum theory negare-ye kuântomi (#) Fr.: théorie quantique The theoretical basis of modern physics which describes the behavior and
interactions of elementary particles or energy states based on the assumptions
that energy is subdivided into discrete amounts and that matter possesses wave
properties. → |

quasi-linear theory negare-ye cunân-xatti Fr.: théorie quasi-linéaire In plasma physics, the theory that considers the interactions between waves and particles are of first order only. It ignores all terms of second order in the fluctuating quantities. |

relativity theory negare-ye bâzânigi Fr.: théorie de la relativité The → → |

scalar-tensor theory negare-ye marpel-tânsori Fr.: théorie scalaire-tensorielle An alternative to the standard → |

set theory negare-ye hangard Fr.: théorie des ensembles The branch of mathematics that studies sets. Set theory is closely associated
with the branch of mathematics known as |

steady state theory negare-ye hâlat-e pâyâ Fr.: théorie de l'état stationnaire A → |

string theory negare-ye rismân Fr.: théorie des cordes The latest theory of fundamental physics in which the basic entity is
a one-dimensional → |