Digitale Geometrieverarbeitung ist ein stetig wachsendes Forschungsgebiet, welches in den letzten Jahren erheblich an Bedeutung gewonnen hat. Dreidimensionale Flächen werden typischerweise mit Hilfe von Computer Aided Design (CAD) Programmen entworfen und modelliert, und ihre physikalische Eigenschaften mittels Finite Elemente (FEM) Simulationen untersucht. Ebenso können physikalische Prototype...

This paper proposes a simplified solution procedure to the model presented by Akinc and Roodman. The Benders’ decomposition procedure for analyzing this model has been developed, and its shortcomings have been highlighted. Here, the special nature of the problem is exploited which allowed us to develop a new algorithm through surrogating method. The two methods are compared by several numerical...

Hypermedia is a broadly accepted technique to develop educational systems since its hypertext structure reflects a model of learning based on the students’ semantic memory model and the use of multimedia provides interactive mechanisms that allow managing, manipulating, and organizing the lessons. A hypermedia electronic book called CIPP (Curso Interactivo de Programacion en Pascal) is introduc...

Background: The construction of measurement matrix becomes a focus in compressed sensing (CS) theory. Although random matrices have been theoretically and practically shown to reconstruct signals, it is still necessary to study the more promising deterministic measurement matrix. Methods: In this paper, a new method to construct a simple and efficient deterministic measurement matrix, sparse kr...

The main goal of the paper is to introduce methods which compute Bézier curves faster than Casteljau’s method does. These methods are based on the spectral factorization of a n×n Bernstein matrix, B n(s) = PnGn(s)P −1 n , where Pn is the n×n lower triangular Pascal matrix. So we first calculate the exact optimum positive value t in order to transform Pn in a scaled Toeplitz matrix, which is a p...

We present a spectral approach to automatically and efficiently obtain discrete free-boundary conformal parameterizations of triangle mesh patches, without the common artifacts due to positional constraints on vertices and without undue bias introduced by sampling irregularity. High-quality parameterizations are computed through a constrained minimization of a discrete weighted conformal energy...

0. Preface. This article is a survey of certain aspects of the theory of multiple Fourier and trigonometric series. I t is by no means meant to be a complete survey; for example, it is practically disjoint with the material covered on the subject in Zygmund's book [38, Chapter 17.]. There are eight sections to this survey. §1 is the introduction. §2, §3, and §4 are expository in the sense that ...

This is a summary of the two talks presented at the Rome GRB meeting by C.L. Bianco and R. Ruffini. It is shown that by respecting the Relative Space-Time Transformation (RSTT) paradigm and the Interpretation of the Burst Structure (IBS) paradigm, important inferences are possible: a) in the new physics occurring in the energy sources of GRBs, b) on the structure of the bursts and c) on the com...

This study examines the structure of sensory nerve endings in the sheep anterior cruciate ligament (ACL). Three types of nerve endings are found: free nerve endings (FNE), Ruffini corpuscles, and lamellated corpuscles. The FNE (more than 100) are found subsynovially. The afferent nerve fibres are either thin myelinated axons (Adelta) or C fibres with diameters of 1-2 microm. FNE have been repor...

Vector Pascal is a language designed to support elegant and efficient expression of algorithms using the SIMD model of computation. It imports into Pascal features derived from the functional languages APL and J, in particular the extension of all operators to work on vectors of data. The type system is extended to handle dimensional analysis. Code generation is via the ILCG system that allows ...