Reduction of fractures of the distal radius is often supplemented with percutaneous pinning, but there is little evidence that this affects the clinical outcome. A total of 43 patients with pinned, and 296 with conservatively-treated, fractures were reviewed a mean of 6 (range 3-13) years after injury. We found controls among the conservatively-treated patients who matched 30 of the patients wi...

We present a phenomenological model for the vortex dynamics in the peak effect region of weakly pinned superconductors. We explain the history dependent dynamic response of the metastable vortex states subjected to a transport current and the hysteretic voltage-current characteristics observed in the vicinity of peak effect in weakly pinned superconductors. A strong variation in voltage current...

Abstract The influence of compressive forces on the lower and upper natural frequencies double beams has been studied in this article. Euler–Bernoulli’s hypotheses have used to derive frequency equations. Two asymmetric were assumed work, four different boundary conditions applied these equations: Pinned–Pinned, Clamped–Clamped, Clamped–Free, Clamped–Pinned. When axial force is increased about ...

Abstract In this research, a compact combination of Chebyshev polynomials is created and used as spatial basis for the time fractional fourth-order Euler–Bernoulli pinned–pinned beam. The method based on applying Petrov–Galerkin procedure to discretize differential problem into system linear algebraic equations with unknown expansion coefficients. Using efficient Gaussian elimination procedure,...