نتایج جستجو برای: quasi isotropic
تعداد نتایج: 106233 فیلتر نتایج به سال:
in design and optimization process of laminated composite structures, the number of layers, layer angles, stacking sequence, material types and etc should be specified. each of aforesaid parameters can be applied as a design variable. in this paper the target is to minimize the weight of laminated composite pin loaded structures. the laminated composite structures are designed based on the load...
the object of the present paper is to study spacetimes admitting quasi-conformal curvature tensor. at first we prove that a quasi-conformally flat spacetime is einstein and hence it is of constant curvature and the energy momentum tensor of such a spacetime satisfying einstein's field equation with cosmological constant is covariant constant. next, we prove that if the perfect...
The object of the present paper is to study spacetimes admitting quasi-conformal curvature tensor. At first we prove that a quasi-conformally flat spacetime is Einstein and hence it is of constant curvature and the energy momentum tensor of such a spacetime satisfying Einstein's field equation with cosmological constant is covariant constant. Next, we prove that if the perfect flui...
We study the approximation of d-dimensional integrals. We present sufficient conditions for fast quasi-Monte Carlo convergence. They apply to isotropic and non-isotropic problems and, in particular, to a number of problems in computational finance. We show that the convergence rate of quasi-Monte Carlo is of order n−1+p{logn} −1/2 with p ≥ 0. This is a worst case result. Compared to the expecte...
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