dipole


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  • noun

Synonyms for dipole

a pair of equal and opposite electric charges or magnetic poles separated by a small distance

an aerial half a wavelength long consisting of two rods connected to a transmission line at the center

References in periodicals archive ?
Conventionally, ferroelectricity has been observed in materials that are insulating or semiconducting rather than metallic, because conduction electrons in metals screen-out the static internal fields arising from the dipole moment.
The team had to prevent the dipole element from breaking along the creased line.
DFT method with Gaussian 09 program with the B3LYP functional and 6-31G(d,p) basis set was used for calculation of physical properties of compounds including stability, Gibbs free energy, dipole moment in different solvents such as EtOH, MeOH and H2O [15].
The structure of this paper is as follows: the 3D VCKdV equation is derived in Section 2; in Section 3, the exact analytical solution of the equation is obtained; Section 4 is devoted to study atmospheric dipole blocking by some arbitrary functions and parameters, and a comparison with the previous model and Urals dipole blocking is made.
Liquid-Metal Pixelated Dipole. The resonant frequency of a half-wavelength dipole antenna depends on the electrical length of the dipole arms.
The goal of this paper is to demonstrate the occurrence of multivortex structures in the superconducting sphere plus magnetic dipole configuration, especially below and around the transition temperature.
As well as, in the previous article [1], the main attention is devoted to the behavior of the ratio of fields at the tip apex Et and at the surface [E.sub.s], calculated on the basis of the same simple dipole model.
As is known, an electric dipole ([micro]) is a vector which is characterized in the direction between two electrical charges, towards +q to -q and module given by the distance d between them [16,20]:
The analogues in the case of the dipole model of magnetization are: [mathematical expression not reproducible] are the intensities, as well as the induction of the electric and magnetic fields; and; [mathematical expression not reproducible]; [[rho].sub.e] and [[rho].sub.m] are the volume densities of the polarization electric and fictitious magnetic charges; [[rho].sup.st.sub.e] and [[rho].sup.st.sub.m] are the volume densities of external [2] electric and fictitious magnetic charges; [[epsilon].sub.0] [??] [[mu].sub.0], [[epsilon].sub.0] is the electric constant; [mathematical expression not reproducible] are the moments of electric and magnetic dipoles; [+ or -]q and [+ or -]m are the point electric and fictitious magnetic charges located in the dipoles at distance l.
When the elements of the folded dipole and the Alford loop are combined, the desired impedance match can be achieved using the properties of a folded dipole, and the desired radiation pattern can be reached from the Alford loop shape.
Because it repels rather than attracts, we call this region the Dipole Repeller," study lead author Yehuda Hoffman from the Hebrew University in Jerusalem said in a (http://new.huji.ac.il/en/article/33403) statement .
ISLAMABAD -- As La Nina and Indian Ocean Dipole (IOD) have subsided, another weather system will enter the country from the west bringing more rain and snowfall from Monday.
To clarify this matter we perform simulations in CST Microwave Studio to calculate the electric field around the body generated by small electric dipole (8 mm length, 0.5 mm thickness) at the distance of 1 mm from the body, which represents an elementary electric source.
Finite element modeling (FEM) was used to study the AE type signals generated from internal dipole sources in a 600 mm long by 8.5 mm polyvinyl chloride (PVC) rod.