0266-3538/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.compscitech.2011.01.009 ⇑ Corresponding author. E-mail address: [email protected] (G.J. Nie). We present a technique to tailor materials for functionally graded (FG) linear elastic hollow cylinders and spheres to attain through-the-thickness either a constant hoop (or circumferential) stress or a constant in-plane shear stress. The...

We formulate and solve a problem of reconstruction the unknown time-dependent temperature distribution on one boundary surface functionally graded hollow sphere according to radial displacements other surface. suggest procedure reducing formulated inverse thermoelasticity problem. By applying finite-difference method, we construct numerical algorithm aimed at solving obtained using solution dir...

The hydrothermal method was used to synthesize carbon sphere, and the hard template synthesis prepared C-doped hollow TiO2 sphere (CHTS). Bismuth nitrate as bismuth source modify CHTS. composite material oxidized in air atmosphere at 450℃ obtain Bi2O3 modified spheres(BCHTS). morphology, elemental composition photocatalytic degradation efficiency of tetracyclines (TC) by BCHTS spheres were char...

The structure of a polymeric material has a great influence in many fundamental scientific areas as well as in more applied science, since it affects the diffusion, permeability, mechanical strength, elasticity, and colloidal properties of the materials. The results in this thesis demonstrate that it is possible to fabricate solid and hollow cellulose spheres with a cellulose shell and encapsul...

Air-cushioned spheres are widely used as treadmills to study behavioural and neurophysiological questions in numerous species. We describe an improved spherical treadmill design that reliably registers the path and walking behaviour of an animal walking on top of the sphere. The simple and robust set-up consists of a very light hollowed styrofoam ball supported by an air stream in a hollow half...

BACKGROUND The bioluminescent enzyme firefly luciferase (Luc) or variants of green fluorescent protein (GFP) in transformed cells can be effectively used to reveal molecular and cellular features of neoplasia in vivo. Tumor cell growth and regression in response to various therapies can be evaluated by using bioluminescent imaging. In bioluminescent imaging, light propagates in highly scatterin...