Reconhecimento de fragmentos de impressões digitais utilizando características estendidas

Com a evolução dos sensores de captura de impressões digitais e a crescente demanda por sistemas mais seguros, torna-se possível e necessário o uso de um conjunto adicional de características, tais como as cristas e os poros. Este trabalho tem como objetivo avaliar o desempenho de dois dos principais métodos de extração automática de poros, bem como o desempenho das características estendidas em situações onde apenas fragmentos das impressões digitais estão disponíveis. Resultados experimentais realizados sobre a base de dados pública PolyU HRF mostram a superioridade do método de extração de poros baseado em filtros adaptativos, em relação ao baseado em filtros isotrópicos. O reconhecimento de frag-mentos de impressões digitais utilizando características estendidas mostrou-se promissor, principalmente quando a informação das comparações de cristas é utilizada na comparação dos poros.

O jornalismo econômico por meio da imprensa alternativa: bundas e a acessibilidade da informação

This article aims to analyze the content expressed in the weekly Bundas and show how this addressed the economic issues in Brazil in the period 1999-2001. Through this study, we will seek to understand how the printed addressed the economic issues and the language employed by evidence how the vehicle was differed from the others in the category accessibility. The economic journalism has a way of approach often incomprehensible by readers, so the analysis of Bundas show the role of that journalism to the society and the importance of it becoming available to the reading public.

Caos e complexidade: design de superficie e os novos paradigmas da ciencia

The expressive possibilities within the field of surface design come up with increasingly larger with the emergence of technologies that allow the construction of forms and structures of high complexity such as three-dimensional printing. Establishing a relationship between design and complex systems, this work seeks to address the significant interrelationship of new paradigms of science, designed from concepts such as chaos, complexity and self-organization along with the cyber and parametric design, assuming thus the consequent impact of these in the creation and construction of process surfaces. Starting from the investigation of the applicability of the aforementioned conceptual bases, will be exemplified prospects of surface, produced in the first instance through computer interfaces, assigning the emergence of new creative processes and technology. Furthermore, elucidating biomimetics and its importance in the design of the design as a means of inspiration in complex systems of nature.

Esses cronistas de futebol e suas fábulas maravilhosas: a copa do mundo de 1998 na grande imprensa brasileira

This paper is focused on the reading of the texts of writers who collaborated with the leading newspapers of the Rio-São Paulo (represented here by the daily O Estado de S. Paulo, Folha de S. Paulo, O Globo and Jornal do Brasil) in coverage Football World Cup 1998, held in France. This tournament crystallized a growing trend from print to the Brazilian season: the convening of writers and chroniclers of notebooks from culture to comment on the matches of the World Cup. Here we analyze how these writers and their chronicles and columns permeated by the poetic and metalinguistic functions, enriched the sports pages with reports, stories or comments imagery, subjective and even fictional about football, a phenomenon that is countered, so the search for the referent and journalistic impartiality

O hipertexto na escola: a retextualização digital nas aulas de língua portuguesa

Pós-graduação em Letras - FCLAR

Detecção de impressões digitais falsas no reconhecimento biométrico de pessoas

Pós-graduação em Ciência da Computação - IBILCE

O projeto EMAI: uma análise sobre seus pressupostos políticos, filosóficos e pedagógicos e a questão da autonomia

Pós-graduação em Educação para a Ciência - FC

Detecção e quantificação de corantes de importância ambiental empregando sensores químicos baseados em fibras ópticas e polímeros molecularmente impressos

Pós-graduação em Química - IQ

Desta para a melhor: a presença das viúvas machadianas no jornal das famílias

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de pastilha potencialmente probiótica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análises físico-químicas e biológicas de diferentes scaffolds à base de polihidroxibutirato e polihidroxibutirato-co-valerato

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

Pesquisa, projeto e construção de um sistema de ignição sem distribuidor

This work intends to know the most types of ignition systems, studying its history, the way it works, applications and some examples. The assembly of a distributor less ignition system is also required. All vehicles powered by internal combustion engines need an ignition system that allows this engine to ignite the air-fuel mixture using its ignition system in the best possible manner. The main goal of an ignition system is to obtain a spark having enough energy to start the chemical reaction of the oxygen and the fuel. It took a study dealing with the various types of ignition systems since their creation at the beginning of the last century until 2015. The work starts studying the high tension magneto ignition system and later together with the low tension ignition system, going on with the conventional ignition system and finally accomplishing with the various types of electronic ignition systems. It was studied and implemented an electronic circuit to power a double spark ignition system also known as wasted spark ignition system. This circuit was assembled with an electric pulse generator and powered mechanically by a dc electric motor of the variable rpm type