Buscar
Mostrando ítems 21-30 de 95
Damage Characterization Using Guided-Wave Linear Arrays and Image Compounding Techniques
(Institute of Electrical and Electronics Engineers (IEEE), 2010-09-01)
In this work, a high-resolution imaging method for the inspection of isotropic plate-like structures using linear arrays and Lamb waves is proposed. The evaluation of these components is limited by the low dynamic range ...
Damage Characterization Using Guided-Wave Linear Arrays and Image Compounding Techniques
(Institute of Electrical and Electronics Engineers (IEEE), 2010-09-01)
In this work, a high-resolution imaging method for the inspection of isotropic plate-like structures using linear arrays and Lamb waves is proposed. The evaluation of these components is limited by the low dynamic range ...
Desenvolvimento pós-embrionário de duas espécies de piolho-de-cobra (Diplopoda; Polydesmida; Pyrgodesmidae) do Pantanal mato-grossense
(Universidade Estadual Paulista (Unesp), 2015)
Development patterns can be useful for identification in Diplopoda, but they are rarely studied for Neotropical species. The present paper brings the identification of the developmental stadia of two Neotropical species, ...
Damage Characterization Using Guided-Wave Linear Arrays and Image Compounding Techniques
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Improving synthetic aperture image by image compounding in beamforming process
(2011-11-10)
In this work, signal processing techniques are used to improve the quality of image based on multi-element synthetic aperture techniques. Using several apodization functions to obtain different side lobes distribution, a ...
Modelagem e implementação de um sistema de processamento digital de sinais baseado em FPGA para geração de imagens por ultrassom usando Simulink
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Sistemas de EnergiaUTFPR, 2017-04-04)
Ultrasound (US) is a well-established technique that has been widely used for testing, characterizing and visualizing internal structures of biological and non-biological material. The US research group of the Federal ...
Efeitos das dietas em Ômega-3 OU Ômega-6 na expressão gênica de neoplasias mamárias de ratas Sprague-Dawley sob o tratamento com tomoxifeno
(Universidade Estadual Paulista (Unesp), 2011-08-12)
Estudos prévios mostraram que uma dieta rica em óleo de peixe aumentou a eficácia quimioprotetora do tamoxifeno contra a carcinogênese mamária induzida pela N-metil-Nnitrosuréia (MNU) em ratas Sprague-Dawley. O presente ...
Fast Acquisition of (13)C NMR Spectra using the Steady-state Free Precession Sequence
(SPRINGER WIEN, 2011)
In this paper, we show that the steady-state free precession sequence can be used to acquire (13)C high-resolution nuclear magnetic resonance spectra and applied to qualitative analysis. The analysis of brucine sample using ...