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We report on the elastic properties of high-textured laminar pyrocarbons (PyCs) as obtained at the nanoscale using atomistic simulations on realistic models of the rough laminar (RL) PyC, the regenerative laminar (ReL) PyC, and the ReL PyC heat treated at temperatures up to 1700°C. The purely longitudinal (C11,C12,C66,E1 and ν12) and transverse (C33 and E3) elastic properties of such materials have...
A new characterization method of the lattice fringe images of turbostratic carbons is proposed. This method is based on the computation of their orientation field without explicit detection of fringes. It allows meaningful insights into the material nanostructure and nanotexture at several scales, either qualitatively or quantitatively. The calculation of pairwise spatial statistics of the orientation...
We present a comparative study of the structure and texture at the nanoscale of two well-known high-textured laminar pyrocarbons (PyCs), the rough laminar (RL) and regenerative laminar (ReL) PyCs. Structure is assessed with diffraction data in the reciprocal space (coherence lengths La and Lc), and in the real space, using a pair distribution function analysis, to finely describe the in-plane features...
Growth plate width and cartilage organization are altered during skeletal unloading in growing rats. Immunohistochemical studies have identified TGF-β in calcified cartilage, and TGF-β is known to induce mitogenic effects on chondrocytes in vitro. On the other hand, IGF-1 was shown to be expressed in the proximal tibial growth plate and to mediate GH-induced longitudinal bone growth in rats. We...
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