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Temperature dependence of electric field gradient in TbCoO3

Hyperfine Interactions, 2007
The temperature dependence of the electric field gradient (efg) in TbCoO3 perovskite was measured by perturbed angular correlation (PAC) technique using 111Cd and181Ta nuclear probes. The radioactive parent nuclei 111In and 181Hf were introduced into the compound through a chemical process during sample preparation. The electric quadrupole interactions
R. N. Saxena +5 more
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Positive solutions of polyharmonic equations with strong dependence on the gradient

Complex Variables and Elliptic Equations, 2007
We study existence and nonexistence of positive, spherically symmetric solutions of polyharmonic boundary value problems, with strong dependence on the gradient on the right-hand side. The existence proof is constructive, with solutions possessing explicit integral representation.
J. Kraljević +5 more
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Gradient Dependent Fatigue Limit Criterion

1999
Experimental evidence has shown that the fatigue limit of metallic cylindrical specimens in fully reversed bending is significantly higher than the respective limit in fully reversed tension-compression. The higher values of the bending fatigue limits observed have to be attributed to the benign influence of the gradient of the bending normal stress on
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Time-dependent gradients of growing interfaces