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the examination and comparison of the competitive balance of the Spanish and the English first leagues of soccer, called La Liga Santander and Barclays Premier League. The basis for the research project has been provided by a database of sixteen

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Pollack Periodica
Authors:
María Jesús Lamela-Rey
,
María Antonia García-Prieto
, and
Alfonso Fernández-Canteli

This paper reports on the probabilistic models for design of glass plates and the subsequent procedure to determine the allowable load of specified types of glass, as a proposal for the new Spanish code for structural glass. Moreover, a comparative analysis of the current national glass design standards, such as the American ASTM E 1300-02, the Italian UNI 7143-72, the French NFP 78-201-1 and the New Zealander NZS 4223 is presented.

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Abstract

Mechanical properties of ductile materials are very sensitive to environmental conditions in particular temperature. The paper shows the results obtained in the simultaneous testing of 5182 H111 Aluminium alloy, S275JR Carbon Steel and F114 Carbon Steel specimens using conventional methods and thermography. The infrared thermography was used to quantify deformation localization zones, also to relate the temperature changes of the specimens, continuously recorded by thermography, with the load extension diagram. It enables to predict reaching the critical stresses which cause the appearance of fractures and to define the criteria for determining the maximum sample temperature alteration in the field of elastic and elastic-plastic strains. Infrared thermography was found to be an efficient tool for investigating the deformation and damage scenario under tensile loading.

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Considering the increasing prospective regarding the various applications of Poly Ether Ether Ketone reinforced with 30% carbon fibres (PEEK CF30), there is a crucial need to investigate its machinability. In this work, focus is centered on non-linear regression based models that can be built to predict roug hness parameters R a and R t associated to turning of PEEK CF30 when using TiN coated cutting tool. Attention was paid to one-variant models that can be proposed to represent the effect of the cutting speed on the surface finish parameters. A broad class of non-linear interpolation models was considered. Their aptness to be used in modelling this particular application was assessed. The identification of the various mathematical models was performed by using experimental results that were obtained from CNC turning of PEEK samples. Based on statistical analysis, all the considered non-linear regression models proved to be highly significant and succeeded to fit adequately the experimental results.

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Non-reinforced and reinforced Poly-Ether-Ether-Ketone (PEEK) plastics have excellent mechanical and thermal properties. Machining is an efficient process that can be used to manufacture specific mechanical parts made from PEEK composites. Researchers have focused on improving the performance of machining operations with the aim of minimizing costs and improving quality of manufactured products, in order to get the best surface roughness and the minimum cutting force. The parameters evaluated are the cutting speed, the depth of cut and the feed rate. In this paper, the effect of the mentioned parameters on surface roughness and cutting force, in dry turning of reinforced PEEK with 30% of carbon fibers (PEEK CF30) using TiN coated cutting tools, is analyzed through using robust design techniques such as Taguchi's design method, signal-to-noise (S/N) ratio and statistical analysis tools such as Pareto-ANOVA. The obtained results have shown that Taguchi method and Pareto ANOVA are suitable for optimizing the cutting parameters with the minimum possible number of experiments, and the optimized process parameters were determined for surface roughness and cutting force criteria.

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, July , 2002 . Zold , A. , Kalmár, T. ( 2010 ). Thermal comfort in low energy houses, XXXVII IAHS World Congress on Housing Science, Santander, Spain .

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-learning experiences University of Deusto Bilbao, Spain . Marozas , V. , Jurkonis , R. , Lukoševičius , A. ( 2008 ), Development of Virtual and Remote Lab Experimentation

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Tarnai, T.: Rigidity and kinematic bifurcation of structures. 40th Anniversary Congress of the International Association for Shell and Spatial Structures (IASS), CEDEX, Madrid, Spain, Sep. 20-24, 1999; 1: B 2

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Kóródy, Anna Dóra: Building Rehabilitation — Tendencies of Functional Transformations in Spain. Periodica Polytechnica Architecture Vol. 45 (2014) No. 1. 29–38. Kóródy A. D. Building

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, http://www.fuel-poverty.org/files/WP5_D15_EN.pdf . [9]. European fuel poverty and energy efficiency, WP2-D5 — Diagnosis of causes and consequences o fuel poverty in Belgium, France, Italy, Spain and United Kingdom

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