| 21. | The nuclear quadrupole interaction is present only in nuclei with I > 1 / 2.
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| 22. | The outer parts of a star contribute most to a star's quadrupole moment.
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| 23. | For many purposes only the monopole, dipole, and quadrupole terms are needed in calculations.
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| 24. | Higher-order terms ( like the quadrupole and octupole ) vary more quickly with angles.
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| 25. | An example of a magnetic quadrupole, involving permanent magnets, is depicted on the right.
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| 26. | This produces a nuclear quadrupole moment.
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| 27. | The M��bauer spectrum reveals one quadrupole doublet, consistent with the D 3h-symmetric structure.
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| 28. | Therefore, for a J = 1 system, its density matrix must have quadrupole components.
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| 29. | Quadrupole terms drop off as, and higher order terms drop off increasingly rapidly with the radius.
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| 30. | Quantum chemical calculations has recently been successfully performed to estimate dipole and quadrupole moments of lipid membranes.
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