نتایج جستجو برای: symmetry index s
تعداد نتایج: 1155683 فیلتر نتایج به سال:
As it is well known, symmetry plays a crucial role in the theoretical physics. On other hand, the Noether symmetry is a useful procedure to select models motivated at a fundamental level, and to discover the exact solution to the given lagrangian. In this work, Noether symmetry in f(T) theory on a spatially homogeneous and anisotropic Bianchi type I universe is considered. We discuss the Lagran...
Owning to the fact that ammunition can cause varying degrees of damage its target, this article presents a effectiveness calculation method hitting targets with based on Bayesian multinomial distribution solve problems complex processes, few trial times and difficult calculations probability in target-hitting tests high-tech ammunition, according index about occurrence different damage. Based c...
The refractive index of natural transparent materials is limited to 2-3 throughout the visible wavelength range. Wider controllability of the refractive index is desired for novel optical applications such as nanoimaging and integrated photonics. We report that metamaterials consisting of period and symmetry-tunable self-assembled nanopatterns can provide a controllable refractive index medium ...
The translational-symmetry hypothesis of abstract-concept learning was tested in a same/different (S/D) task with pairs of pictures. The translational-symmetry hypothesis proposes that subjects discriminate same trials by the simultaneous repetition of features in the two pictures (and different trials by the lack of feature repetition). Pigeons that had learned a simultaneous S/D task were tes...
Zinc (II) complex, [Zn(25-MBTSC)2I2] (1), where (25-MBTSC = (E)-2-(2,5-dimethoxybenzaldehyde) thiosemicarbazone, has been synthesized from the reaction of ZnI2 with 25-MBTSC in methanol as solvent at 25 ºC. It was characterized by elemental analysis (CHN) and is confirmed by single-crystal X-ray diffraction analysis. The complex 1 crystallizes in a triclinic system, with space group P-ī, having...
Flavor symmetry and symmetry breaking, K0-K̄0 mixing and possible effects of new physics on CP violation in weak decay modes D → KS,L+X , (KS,L+π )K∗+X ± (for X = π, ρ, a1) and D ± s → KS,L+X ± s , (KS,L+π )K∗ +X ± s (for Xs = K,K ) are analyzed. Relations between D and D s decay branching ratios are obtained from the d ⇔ s subgroup of SU(3) and dominant symmetry-breaking mechanisms are investig...
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