abstract  background: resection of the distal end of the radius is indicated in the treatment  of locally aggressive primary benign and malignant bone tumors. the aim of this study  was to evaluate the technique of osteoarticular allograft reconstruction of the distal radius after wide excision of a giant-cell tumor.  methods: we analyzed 15 patients retrospectively who had reconstruction of th...

abstract background: with increasing knowledge concerning fractures of the distal radius, different classifications have been proposed. reliability of most of these classifications has been assessed. the fernandez classification has never been assessed for intraobserver and interobserver reliability, although this classification is commonly used. methods: five observers including one attending ...

Gear’s normal contact stiffness played an important role in the mechanical equipment. In this paper, the M-B fractal model is modified and the contact surface coefficient is put forward to set up the fractal model, considering the influence of friction, which could be used to calculate accurately the involute arc cylindrical gears’ normal contact stiffness based on the fractal theory and Hertz ...

In this study, we have investigated radius dependence of hydrogen storage within armchair (n,n) single walled carbon nanotubes (SWCNT) in a square arrays. To this aim, we have employed equilibrium molecular dynamics (MD) simulation. Our simulations results reveal that radius of carbon nanotubes are an important and influent factor in hydrogen distribution inside carbon nanotubes and consequentl...

we present an exceedingly rare case of left monteggia-galeazzi fracture-dislocation and right monteggiadistal radius fracture occurring simultaneously in a 20-year old male patient who had fallen 13 meters from a building. the combination of monteggia and galeazzi fracture-dislocation in the same forearm is very rare and, to the best of our knowledge, simultaneous bilateral monteggia and galeaz...