Wszystkie pola: quantities - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Conformal Invariance and Conserved Quantities for Lagrange Equation of Thin Elastic Rod
Autorzy:: Wang, Peng
Feng, Hui-Rong
Lou, Zhi-Mei
Powiązania:: https://bibliotekanauki.pl/articles/1033429.pdf
Data publikacji:: 2017-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: conformal invariance
Lie symmetry
conserved quantities
thin elastic rod
Lagrange equation
Opis:: Basing on the analytical mechanics methods, the Lagrangian equations of thin elastic rod is constructed. The definition of conformal invariance for the Lagrange mechanics of elastic rod is given. The criterions that conformal invariance of elastic rod is the Lie symmetry are obtained based on the Lie point transformation group. The structure equation and conserved quantity deduced from conformal invariance of elastic rod are constructed. Take twist rod as an example to illustrate the application of the results got in this paper.
Źródło:: Acta Physica Polonica A; 2017, 131, 2; 283-287
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Scale-free properties of board and director networks quantities
Autorzy:: Siudak, D.
Sankowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/1058158.pdf
Data publikacji:: 2016-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.50.Ng
05.90.+m
Opis:: It is often claimed that corporate and board networks display a scale-free nature, but there is no robust support for this nature. Based on data concerning the corporate board and director networks from companies listed on the Warsaw Stock Exchange Market, we applied a rigorous approach to determine whether quantities of these networks, such as degree, board size, and directorship number, exhibit power-law distribution.
Źródło:: Acta Physica Polonica A; 2016, 130, 6; 1261-1264
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Conformal Invariance and Conserved Quantities οf Mei Symmetry for Lagrange Systems
Autorzy:: Cai, Jian-Le
Powiązania:: https://bibliotekanauki.pl/articles/1808004.pdf
Data publikacji:: 2009-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.20.Sv
11.30.-j
Opis:: Conformal invariance and conserved quantities of the Mei symmetry for the Lagrange systems under the infinitesimal transformation of groups are studied. Firstly, the definition of conformal invariance of the Mei symmetry is given, together with its criterion equations and determining equations. Then the systems' conserved quantities are obtained using the structure equation satisfied by the gauge function. Lastly, an example is taken to illustrate the application of the result.
Źródło:: Acta Physica Polonica A; 2009, 115, 5; 854-856
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Singular Pretransitional Behavior of the Electric Field-Dependent Part of the Thermodynamic Quantities of Strongly Polar Mesogenic Liquids in the Isotropic Phase
Autorzy:: Jadżyn, J.
Déjardin, J.-L.
Czechowski, G.
Powiązania:: https://bibliotekanauki.pl/articles/2047352.pdf
Data publikacji:: 2007-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 64.70.Md
65.40.Gr
77.22.Ch
Opis:: A new interpretation of the pretransitional temperature behavior of the static dielectric permittivity and its derivative in terms of the basic thermodynamic quantities: the internal energy, the entropy, and the Helmholtz free energy is presented. It was shown that in the case of strongly polar mesogenic compounds (as the homologous series of alkylcyanobiphenyls) the electric field-induced increments of both the internal energy and the entropy exhibit a critical-like temperature dependence in the vicinity of transition from the isotropic liquid to the nematic phase. As a most important pretransitional effect, it is shown that at a temperature of about 10 degrees before the phase transition, an electric field applied to the isotropic liquids induces an increase in the entropy (Δ S>0) instead of its decrease, as observed far from the phase transition or for the non-mesogenic dipolar liquids.
Źródło:: Acta Physica Polonica A; 2007, 111, 6; 877-884
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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