In sheet metal forming processes, springback is a very important issue in the view of excellent quality design. Several mathematical models have been developed to estimate more accurately, including various material parameters. this study, model parameters Yoshida-Uemori two surface plasticity model, which can well predict for different loading conditions, determined using The Bees Algorithm an...

Following Meyer’s argument [Phys. Rev. Lett. 83, 3751 (1999)] the set of all directions in space is replaced by the dense subset of rational directions. The result conflicts with Euclidean geometry. Meyer’s claim [1] that “finite precision measurement nullifies the KochenSpecker theorem” (that is, makes it irrelevant to physics) and some of its generalizations [2] have caused considerable contr...

The existence of a dense linear manifold of holomorphic functions on a Jordan domain having except for zero maximal cluster set along any curve tending to the boundary with nontotal oscillation value set is shown.

We propose a semi-automatic omnidirectional texturing method that maps a spherical image onto a dense 3D model obtained by a range sensor. For accurate texturing, accurate estimation of the extrinsic parameters is inevitable. In order to estimate these parameters, we propose a robust 3D registration-based method between a dense range data set and a sparse spherical image stereo data set. For me...

We present a surprisingly simple system that allows for robust normal reconstruction by photometric stereo using a uniform and dense set of photometric images captured at fixed viewpoint, in the presense of spurious noises caused by highlight, shadows and non-Lambertian reflections. Our system consists of a mirror sphere, a spotlight and a DV camera only. Using this, a dense set of unbiased but...

Let G be the group of rational points of a connected reductive p-adic group and let K be a maximal compact subgroup satisfying conditions of Theorem 5 from Harish-Chandra (1970). Generalized spherical functions on G are eigenfunctions for the action of the Bernstein center, which satisfy a transformation property for the action of K. In this paper we show that spaces of generalized spherical fu...

According to a classical result of Szemerédi, every dense subset of 1, 2, . . . , N contains an arbitrary long arithmetic progression, if N is large enough. Its analogue in higher dimensions due to Fürstenberg and Katznelson says that every dense subset of {1, 2, . . . , N}d contains an arbitrary large grid, if N is large enough. Here we generalize these results for separated point sets on the ...

Let Pn denote the set of all algebraic polynomials of degree at most n with real coefficients. Associated with a set of poles {a1, a2, . . . , an} ⊂ R\ [−1, 1] we define the rational function spaces Pn(a1, a2, . . . , an) := 8< : : f(x) = b0 + n X j=1 bj x− aj , b0, b1, . . . , bn ∈ R 9= ; . Associated with a set of poles {a1, a2, . . . } ⊂ R\[−1, 1] , we define the rational function spaces P(a...

We present a novel method for 3D shape acquisition, based on mobile structured light. Unlike classical structured light methods, in which a static projector illuminates the scene with dynamic illumination patterns, mobile structured light employs a moving projector translated at a constant velocity in the direction of the projector’s horizontal axis, emitting static or dynamic illumination. For...

Data clustering is very useful in helping users visit the large scale of data in digit library. In this paper, we present an improved algorithm for clustering large scale of data set with dense relationship based on Affinity Propagation. First, the input data are divided into several groups and Affinity Propagation is applied to them respectively. Results from first step are grouped together in...