Measurement of Radiant Energy using Pyroelectric Polymer/Ceramic Composite

Monitoring non-ionizing radiant energy is increasingly demanded for many applications such as automobile, biomedical and security system. Thermal type infrared (IR) sensors can operate at room temperature and pyroelectric materials have high sensitivity and accuracy for that application. Working as thermal transducer pyroelectric sensor converts the non-quantified thermal flux into the output measurable quantity of electrical charge, voltage or current. In the present study the composite made of poly(vinylidene fluoride) -PVDF and lead zirconate titanate (PZT) partially recovered with polyaniline (PAni) conductor polymer has been used as sensor element. The pyroelectric coefficient p(T) was obtained by measuring the pyroelectric reversible current, i.e., measuring the thermally stimulated depolarization current (TSDC) after removing all irreversible contribution to the current such as injected charge during polarization of the sample. To analyze the sensing property of the pyroelectric material, the sensor is irradiated by a high power light source (halogen lamp of 250 W) that is chopped providing a modulated radiation. A device assembled in the laboratory is used to change the light intensity sensor, an aluminum strip having openings with diameters ranging from 1 to 10 mm incremented by one millimeter. The sensor element is assembled between two electrodes while its frontal surface is painted black ink to maximize the light absorption. The signal from the sensor is measured by a Lock-In amplifier model SR530 -Stanford Research Systems. The behavior of the output voltage for an input power at several frequencies for PZT-PAni/PVDF (30/ 70 vol%) composite follows the inverse power law (1/ f) and the linearity can be observed in the frequency range used.

SNPS em genes candidatos para potencial atlético como possíveis marcadores para desempenho em corrida em equinos da raça quarto de milha

Pós-graduação em Genética e Melhoramento Animal - FCAV

Análise da viabilidade técnica e ambiental de vias cicláveis na cidade de Presidente Epitácio-SP

Pós-graduação em Engenharia Civil - FEIS

Assinaturas de seleção na linhagem de trabalho de equinos da raça quarto de milha

Pós-graduação em Genética e Melhoramento Animal - FCAV

Identificação de regiões genômicas selecionadas de forma divergente em equinos quarto de milha de corrida e trabalho

Pós-graduação em Genética e Melhoramento Animal - FCAV

Contribuição das redes de T.I. para formulação da estratégia e gestão das empresas

Pós-graduação em Engenharia de Produção - FEB

Comportamento dinâmico de suspensão eletromecânica: análise da resposta devido ao amortecimento e à rigidez não linear

Pós-graduação em Engenharia Elétrica - FEB

Modelagem e otimização por metodologia de superfícies de resposta: um estudo em arames de aço SAE 9254 para molas automobilísticas

Pós-graduação em Engenharia Mecânica - FEG

A Genome-Wide Association Study for Morphometric Traits in Quarter Horse

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

Genetic parameters for earnings in Quarter Horse

In this study, we estimated the heritability (h(2)) of earnings in the Quarter Horse in order to evaluate the inclusion of this trait in breeding programs. Records from 14,754 races of 2443 horses from 1978-2009 were provided by Sorocaba Hippodrome, Sao Paulo, Brazil. All ancestors of the registered horses were included in the pedigree file until the 4th generation. Log-transformed performance measures (LPM) were analyzed for animals aged 2, 3, and 4 years and during their entire career. The h(2) estimates were obtained using a multi-trait model and Gibbs sampling that included the effects of sex, year of race, and animal in all analyses. Five analyses were performed: 1 in which LPM was divided by the number of prizes, 1 in which LPM was divided by the number of race starts, and 3 analyses that included the number of prizes, number of race starts, and both (LPM_cNPS) as covariates. Analysis was performed with and without inclusion of the maternal effect. Models were compared based on the deviance information criterion and LPM_cNPS including maternal effects was found to be the best model. The h(2) estimates and standard deviation obtained using model LPM_cNPS were 0.19 +/- 0.08, 0.21 +/- 0.08, 0.22 +/- 0.09, and 0.21 +/- 0.07 for earnings at 2, 3, and 4 years of age and total career, respectively. Our analyses indicate that earnings are subject to selection and can be included in breeding programs to improve the racing performance of Quarter Horses.

Avaliação de fração volumétrica de austenita retida e martensita em aço trip 800 utilizando três métodos diferentes

In the second half of the last century the automobile industries suffered from the petroleum crisis caused mainly by the wars in the Middle East. These crises led the automakers rethink their vehicles. One of the most important events after that was the adoption of new steels by the industry. One example is the TRIP steels (Transformationinduced plasticity). It is known that the macroscopic behavior of a material is strongly dependent on its microstructure and therefore the quantitative metallography is important to understand and relate the material properties to its microstructure. In this work, different specimens of TRIP steels were etched using LePera reagent. The obtained images were analyzed using digital processing. Using the ImageJ software the methods threshold and watershed were studied as well as a comparison with the ASTM E562 standard. The methods were compared and finally the morphological characteristics and volumetric fraction of the retained austenite and martensite phases were analyzed. The results showed that the threshold led to a higher number of identified grains with lower mean area and total area fraction than the watershed method and ASTM standard

Análise do gerenciamento de projetos de produtos na área de desenvolvimento de motores em uma indústria automotiva

L'un des facteurs nécessaires pour qu’une entreprise reste compétitive sur le marché est la création ou l'amélioration d'un produit afin qu’il réponde aux besoins et aux attentes des clients, ainsi, le Processus de Développement de Produits (PDP) est essentiel. Pour la réussite du PDP, il est souhaitable de suivre un système standard de gestion de projet. L'objectif de cette étude est d'analyser la gestion de projets dans le processus de développement de produits dans l'industrie automobile afin d'identifier les possibilités d’amélioration. Par conséquent, nous avons procédé à une revue de littérature sur le sujet, analysé les lignes directrices et les pratiques du processus de développement de produit dans l’entreprise. Comme résultat, il a été obtenu que le système de développement de produits créé par l’entreprise requiert la clarification des outils utiles à la gestion de projet. Un problème de communication et de gestion des coûts a également été constaté dans le domaine du développement du moteur lourd

São Paulo 2012: Um sonho, um projeto, uma visão

Millennia ago, through the myths of greeks gods and demi-gods, comes a series of celebrations called Pan-Hellenic Games. Among these festivals, the most famous was certainly the Olympic Games - the Olympics. Forbidden by Rome in the third century AD, they are considered to worship the pagan gods, were rescued in 1894 by Pierre de Coubertin. Over 113 years and 29 Olympiads, the event took gigantic proportions and the right to host the Games has become one of the closest racing of the modern world. Catalyst for urban development, the Olympic Games were the subject of dream for the city of Sao Paulo in the 2000’s, and an internal dispute was fought with Rio de Janeiro to get the right to host the 2012 Games. A team of Paulo Mendes da Rocha and associates was responsible for designing the plan. Eliminated from contention, Sao Paulo forgot the Olympic dream, and in October 2009 the city of Rio was finally chosen to host the Olympics in 2016. This project aims to rescue the look of architectural and urban plan Sao Paulo 2012 and with a critical and poetic eye create a visual identity for a fictitious victory in the election of São Paulo in 2003. Not aiming to create a corporate identity program - because this is not the mission of the architect - but look at Sao Paulo and the Olympics with poetry and criticism in the true Olympic spirit of peace and hope.

Modelo de flexibilidade de manufatura em processos de submontagem

Through observation of production process of a Vale do Paraiba’s automobile industry, one can encounter in need of improvement related to large uncertainties and variations in the production environment, a fact that inspired the search for solutions that can respond quickly to these changes. This way, the paper describes the development of a flexible manufacturing model, which aims to optimize the process in an automotive sub-assembly industry of the Paraíba Valley. The main objective is to propose a method to promote viable alternatives to easing the assembly of parallel sub performed the assembly of cars. For the construction of the model was necessary to explore concepts of flexible manufacturing and making the data presented in literature, which were vital to ensure the development of the method. The concepts discussed are usually presented at an undergraduate degree in Engineering. Data compiled by the model are able to serve as a strategic benchmark for decision making by managers. Featuring alternative response variables and uncertainties of the organizational environment, a fact that facilitates the management of human resources and productive

O processo de ensino aprendizagem da educação no trânsito por meio da construção de um personagem heróico

This research project aims to study the relationship between the myths and the automobile, the contributions to the literature of fairy tales and the possible contributions of the heroes of fairy tales can bring to the process of teaching and learning defensive behavior in traffic. Traffic is a phenomenon so common to modern societies that often do not pay attention to their relevance as synonymous with social space and contains diversity of people and behaviors. To counter the image of fatalistic accidents and transgressions, will support us in the virtues of the hero figure to culminate in a collective tale in which children want to rethink their behavior, becoming citizens, with a more preventative and better quality of life. The research will be held in four rooms of elementary school in a city public school that serves children from families of the urban popular classes. The research will seek to analyze how the design of transit for the children and what the increase attributed to the theme, after the establishment of a collective story