Xiao Chong

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The higher order asymptotic fields which are similar to the Williams' solutions of plane crack problems in homogenous materials are obtained by the asymptotic analysis for a crack in functionally graded Reissner's spherical shell. The results provide a theoretical basis for the numerical analysis, experimental investigation and the engineering application(More)
An Oblique anti-plane crack is studied with its tip at the physical weak-discontinuous line of the structure which is made up of homogeneous material and functionally graded materials (FGMs). The analytic solution of the higher order crack tip fields (similar to the Williams' solution of homogenous material) is obtained by applying the asymptotic series(More)
OBJECTIVE To establish an optimal method to isolate and culture human embryonic stem (hES) cells from discarded blastocysts and to differentiate these cells into hepatocyte-like cells. METHODS Discarded human blastocysts of days 5-6 were cultured on mouse embryonic fibroblast cell feeder layers. Cells from the inner cell mass were isolated and(More)
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