2,674 research outputs found
The Oblique Corrections from Heavy Scalars in Irreducible Representations
The contributions to , , and from heavy scalars in any irreducible
representation of the electroweak gauge group are
obtained. We find that in the case of a heavy scalar doublet there is a slight
difference between the parameter we have obtained and that in previous
works.Comment: 6 pages, 2 axodraw figures; minor changes, references update
The Effects of Force on the Structure Deformation of Wing for Flapping-wing
This paper investigated the effects of aerodynamic force and inertial force on the structure deformation of wing. The aerodynamic force was tested from the wind tunnel experiment. The study indicated the quantity of aerodynamic force and inertial force is equal. The maximum deformation was produced by aerodynamic force or resultant force when wing is located on horizontal situation. The study of wing structure deformation provide guide for design and optimization of wing for flapping-wing.Keywords: Flapping-wing; aerodynamic force; inertial force; structure deformatio
BisÂ(1H-benzimidazole-κN 3)bis(4-methylÂbenzoato-κ 2 O,O′)cobalt(II)
In the title mononuclear complex, [Co(C8H7O2)2(C7H6N2)2], the CoII atom is coordinated by four carboxylate O atoms from two 4-methylÂbenzoate ligands and two N atoms from two benzimidazole ligands in an octaÂhedral coordination geometry. The molecules are assembled via interÂmolecular N—H⋯O hydrogen-bonding interÂactions into a three-dimensional network
μ-Aqua-κ2 O:O-di-μ-4-methylÂbenzoato-κ4 O:O′-bisÂ[(4-methylÂbenzoato-κO)(1,10-phenanthroline-κ2 N,N′)nickel(II)]
In the title dinuclear complex, [Ni2(C8H7O2)4(C12H8N2)2(H2O)], each NiII atom is six-coordinated by three carboxylate O atoms from three 4-methylÂbenzoate ligands, two N atoms from two 1,10-phenanthroline ligands, and one μ2-bridging aqua ligand. The dimeric complex is located on a crystallographic twofold axis and each Ni atom displays a distorted octaÂhedral coordination geometry. The crystal structure is stabilized via intraÂmolecular hydrogen bonding of the bridging water molÂecule and the uncoordinated carboxylÂate O atoms, and by C—H⋯O and π–π stacking interÂactions [centroid–centroid distances between neighbouring phenanthroline ring systems and between the benzene ring of a 4-methylÂbenzoate unit and a phenanthroline ring system are 3.662 (2) and 3.611 (3) Å, respectively]
The Entanglement in Anisotropic Heisenberg XYZ Chain with inhomogeneous magnetic field
The thermal entanglement of a two-qubit anisotropic Heisenberg chain
under an inhomogeneous magnetic field b is studied. It is shown that when
inhomogeneity is increased to certain value, the entanglement can exhibit a
larger revival than that of less values of b. The property is both true for
zero temperature and a finite temperature. The results also show that the
entanglement and critical temperature can be increased by increasing
inhomogeneous exteral magnetic field
- …