On the construction of perfect codes from HEX signal constellations

Recently, minimum and non-minimum delay perfect codes were proposed for any channel of dimension n. Their construction appears in the literature as a subset of cyclic division algebras over Q(zeta(3)) only for the dimension n = 2(s)n(1), where s is an element of {0,1}, n(1) is odd and the signal constellations are isomorphic to Z[zeta(3)](n) In this work, we propose an innovative methodology to extend the construction of minimum and non-minimum delay perfect codes as a subset of cyclic division algebras over Q(zeta(3)), where the signal constellations are isomorphic to the hexagonal A(2)(n)-rotated lattice, for any channel of any dimension n such that gcd(n,3) = 1. (C) 2012 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.

Construction of perfect space-time codes

In this work, we propose an innovative methodology to extend the construction of minimum and non-minimum delay perfect codes as a subset of cyclic division algebras over ℚ(ζ3), where the signal constellations are isomorphic to the hexagonal An 2 -rotated lattice, for any channel of any dimension n such that gcd{n, 3) = 1.

Enhanced bulk and superficial hydrophobicities of starch-based bionanocomposites by addition of clay

In this work, thermoplastic starch (TPS)-clay bionanocomposites were obtained by an innovative methodology using a combination of methodologies commonly used in the composites and nanocomposites preparations. The main objectives or novelties were to confirm efficiency of the processing methodology by field emission gun scanning electron microscopy and investigate the effect of clay content on the spectroscopic, bulk and surface hydrophilic/hydrophobic properties of these bionanocomposites. Raman and FTIR spectroscopies confirmed the changes in the spectroscopic properties of the TPS bionanocomposites with the addition of the clay materials. Water absorption and contact angle measurements were also used to analyze the effect of the clay content on the hydrophilic properties of the TPS bionanocomposites. The results also showed that the addition of the cloisite-Na+ clay increased the bulk and surface hydrophobicities of the TPS matrix, which may increase its industrial application, particularly in manufacturing of food containers. © 2013 Elsevier B.V.

O ensino do Modelo de Leitura Documentária como recurso pedagógico para indexação na perspectiva entre profissional experiente e aprendiz: a aplicação do Protocolo Verbal Interativo na avaliação do uso e da ação de aprendizagem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A contribuition to the study of channel coding in wireless communication systems

Pós-graduação em Engenharia Elétrica - FEIS

Características de las experiencias españolas de presupuesto participativo: intento de encuadramiento en una tipología

Participatory Budgeting (PB) is an innovative methodology of public budget management. It includes the common citizen in decision-making process, which does not happen in traditional budget processes. PB emerged in Brazil in the last two decades of the last century (Porto Alegre’s experience is the best known model) and spread to several countries since then. The spread of the practice has produced significant changes in relation to the original proposals, requiring the efforts of analysts to identify them in different situations, carried out by different political actors, with different objectives. Pires and Pineda (2008a) proposed a typology of PB sought to contemplate the experiences from the simplest to the most daring and less sophisticated to the pretentious, so as to allow assessment of the maximum number of cases. In this article the Spanish experiences of PB are characterized from this typology, highlighting its most relevant aspects. It is a useful study to understand the evolution of PB in Spain, but also to continue the effort to better define what is and can become the participatory budget as a possible tool for improving the management of local public finance and democracy

O comportamento prosódico dos monossílabos no português arcaico por meio das Cantigas de Santa Maria

This paper aims to conduct a study on the prosodic behavior of monosyllables in Medieval Portuguese. This research is based on an innovative methodology that observes the relation between musical and linguistic prominences and its contributions for data collection regarding the prosodic structure of the language in study. There are in Medieval Portuguese heavy (tonic) monosyllables and light (atonic) monosyllables with diverse syllabic structure. The onset is irrelevant for the syllabic weight. Monosyllables with a consonant in the coda are heavy unless this consonant represents an inflexion element. Monosyllables with no consonant in the coda are normally light but there are also heavy monosyllables with no consonant in the coda.

Proparoxítonas no português arcaico: uma análise por meio da música e do texto das Cantigas de Santa Maria

This paper aims to conduct a study on proparoxytones in Medieval Portuguese through an innovative methodology based on the observation of coincidences and no-coincidences of musical and linguistic prominences of poetic texts with musical notation.. This methodology allowed us to verify the existence of a hundred and thirteen proparoxytones words in a corpus constituted by the first hundred Cantigas de Santa Maria. It was possible to locate the stressed syllable in 92,93% of the found words.

Optimisation of a continuous flash fermentation for butanol production using the response surface methodology

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Innovative winemaking: Consumer acceptance of red table wines

Purpose: This paper aims to evaluate the consumer acceptance of Bordô and Isabel wines from innovative winemaking in order to increase red wine consumption by consumers to obtain nutritional benefits. Design/methodology/approach: All wines were produced by a standard procedure of vinification. Pre-drying treatment aimed at drying the grapes up to 22°Brix and static pomace wines presented the constant contact between the must and pomace. Sensory acceptance was carried out by 80 consumers who evaluated eight samples (six experimental wines and two commercial wines) concerning the attributes: appearance, aroma, body, flavor and overall acceptance. Findings: Experimental wines presented higher acceptance when compared to commercial wines and cluster analysis shows the splitting of consumer preferences, highlighting the higher acceptance of traditional Bordô wine and static pomace samples in all sensory attributes. Pre-drying process enhances the concentration of coloured compounds, to highlight the appearance acceptance of these samples. Research limitations/implications: Although this paper has limited the consumer acceptance of red table wines, the innovative treatments will be applied in Vitis vinifera red wines. Practical implications: The wide acceptance of static pomace and pre-drying wines has promoted further information about innovative winemaking that can be applied in Brazilian and worldwide wineries. Social implications: The innovative treatments can change sensorial features of wines and therefore influence the choice of consumers as well as enhancing the nutritional benefits of red wines. Originality/value: The pre-drying and static pomace winemaking are the novelty of this study and the wide acceptance of the sensory attributes concerning these treatments indicates the potential for application in wineries. © Emerald Group Publishing Limited.