Distance Transform
Mostrando 25-36 de 41 artigos, teses e dissertações.
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25. Utilization of spectroscopy in the infrared region (FTIR) and chemometry in the identification of adulterated toasted and ground coffee. / UtilizaÃÃo da espectroscopia na regiÃo do infravermelho (FTIR) e quimiometria na identificaÃÃo do cafà torrado e moÃdo adulterado.
In this work the potentialities of the chemometric techniques and the eases in the obtaining of spectra presented by the spectroscopy techniques in the infra-red region with Fourier transform (FTIR) through the attenuated total reflectance (ATR), drift reflectance (DRIFT) and transmittance, aiming at the identification of barley (substance used as an adulter
Publicado em: 2005
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26. Ambientes multimediaticos de aprendizagem : entidades mediando a autonomia / Multimedia learning ambiences : entities mediatiing autonomy
Present work that integrates a Healthy Community Program focus on a group ofthe Community Health Agents (CHA) from S. Marcos, a poor region of Campinas outskirts. It was devised to study the development of the autonomy of a group of CHA which were challenged to use the telematic resources of Distance Education (DE) and digital technology as tools for a Commu
Publicado em: 2004
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27. Localização de faltas em linhas de transmissão utilizando a teoria de ondas viajantes e transformada Wavelet / Fault Location in Transmission Lines Using Traveling Waves and Wavelet Transform Theory
This work presents a wavelet transform (WT) application to analyze the high frequency transients in a transmission line caused by a fault, with the purpose of determining its accurate location. The WT is very similar to Fourier Transform (FT), with an important difference: it allows the time determination of different frequency components of a signal. This s
Publicado em: 2003
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28. Estudo do processo de deposição e propriedades de filmes de oxido de tungstenio obtidos por uma nova tecnicas de deposição / Study of the deposition process of tungsten oxide films obtained by a new deposition technique
This work describes a novel technique for the deposition of tungsten oxide thin films and reports an investigation on their deposition process and properties. The films were obtained in a vacuum deposition chamber fitted with a tungsten filament heated by an ac power supply. Oxygen was admitted into the chamber using mass flow meters. The films were formed o
Publicado em: 2003
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29. EXTRAÇÃO DE MALHAS ADAPTATIVAS EM MULTI-RESOLUÇÃO A PARTIR DE VOLUMES, USANDO SIMPLIFICAÇÃO E REFINAMENTO / MULTIRESOLUTION ADAPTIVE MESH EXTRACTION FROM VOLUMES, USING SIMPLIFICATION AND REFINEMENT
Este trabalho apresenta um método para extração de malhas poligonais adaptativas em multi-resolução, a partir de objetos volumétricos. As principais aplicações da extração de malhas estão ligadas à área médica, dinâmica de fluidos, geociências, meteorologia, dentre outras. Nestas áreas os dados podem ser representados como objetos volumétri
Publicado em: 2002
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30. Projeto de operadores de processamento e analise de imagens baseados na transformada imagem-floresta
t: In image processing and analysis, many problems can be thought of as an optimal image partition problem based on seed pixels, where each seed defines an influence zone composed by its "closest" pixels. The image foresting transform (1FT) is a unified and efficient approach to solve these problems, by reducing them into a shortest-path forest problem in
Publicado em: 2001
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31. Acões motrizes e representações sociais no jogo do laço no vale do Itabapoana
It was investigated corporal movements and meanings of the sporting practice of the laço do boi (ox roping), own rural game ofthe Northwest of Rio de Janeiro and South of Espírito Santo, whose objective is to lasso, set up in horse, a calf in escape by approximately 100 meters of distance. More specifically, the nature of the game and the configuration of
Publicado em: 1999
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32. Estudo de compostos de intercalação de Fe OCI : sintese, caracterização e propriedades
In this study we have synthetised FeOCl and some of its intercalation compounds involving Lewis bases as intercalants: n-buthylamine (nBA), triethylamine (TEA), benzylamine (BZA), ethylenediamine (EDA) and diethylenetriamine (DTA). These synthesis were optimized through the control of some reaction parameters such as temperature and time. The reactions were
Publicado em: 1997
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33. Chaves eletricas a semicondutor controladas por pulsos laser de picosegundos
In this work we have studied the construction of ultra-fast electrical switches activated by ultrashort laser pulses. Such devices, built based on high-resistivity semiconductors, transform the energy of ultra short light pulses in electrical signals. These signals have rise time and pulse width of the order of pico-seconds. Parameters concerning the constru
Publicado em: 1984
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34. Local homology recognition and distance measures in linear time using compressed amino acid alphabets
Methods for discovery of local similarities and estimation of evolutionary distance by identifying k-mers (contiguous subsequences of length k) common to two sequences are described. Given unaligned sequences of length L, these methods have O(L) time complexity. The ability of compressed amino acid alphabets to extend these techniques to distantly related pr
Oxford University Press.
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35. Binding of 13C-Enriched α-Methyl-D-Glucopyranoside to Concanavalin A as Studied by Carbon Magnetic Resonance
Binding of α-methyl-D-glucopyranoside, uniformly enriched with 14% 13C, to zinc and manganese derivatives of concanavalin A at pH 5.6 was studied by pulsed Fourier transform carbon magnetic resonance techniques. Spin-lattice relaxation (T1) of the [13C]carbons of the sugar was measured in the absence and presence of the two transition metal derivatives of t
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36. The transmembrane 7-alpha-bundle of rhodopsin: distance geometry calculations with hydrogen bonding constraints.
A 3D model of the transmembrane 7-alpha-bundle of rhodopsin-like G-protein-coupled receptors (GPCRs) was calculated using an iterative distance geometry refinement with an evolving system of hydrogen bonds, formed by intramembrane polar side chains in various proteins of the family and collectively applied as distance constraints. The alpha-bundle structure