[PDF] Top 20 J. Aerosp. Technol. Manag. vol.2 número1

... International university rankings have indicated, in recent years, an increasing participation, among the best positions, of education institutions from emerging countries, such as Taiw[r] ... See full document

... Figure 3a shows that the real permeability (μ’) values present a slight increase with the magnetic iller concentration increase into the RAM sample. For example, at 2 GHz, μ’ is equal to 1.2 and 2.2 for the ... See full document

... Considering the nature of the geometries and loads presented in the system, one can use symmetry techniques in order to simplify the model and, therefore, reduce computational effort. It is possible to observe the ... See full document

... time interval, the peak of these distributions is different: for the average wind speed, the aerovane´s peak is one class prior to the sonic (Fig. 4a), increasing this difference for two classes for the maximum wind ... See full document

... Foram identiicados os planos, as diretrizes, as normas e os relatórios internos e externos à instituição que afetaram o processo de gestão de projetos de P&D; identiicados e anal[r] ... See full document

... Em 2006, o setor automobilístico nacional era formado por: 25 montadoras diferentes, abastecidas por mais de 500 empresas de autopeças; capacidade industrial para [r] ... See full document

... Based on the results obtained in this study, we conclude that the paints produced have the potential to be used as RAMs, since they attenuated 60 to 85% of the incident electromagnetic radiation. The attenuation measured ... See full document

... This paper describes the compatibility studies of RDX and HMX relating to a luoroelastomer (Viton) and to powdered aluminum (Al) using DSC and Vacuum stability tests in ord[r] ... See full document

... no espaço compreendido entre os cristais do sal inorgânico, normalmente o perclorato de amônio (oxidante), em um processo conhecido como empacotamento das cargas, que resulta no compósito denominado grão propelente ... See full document

... Comparison between the values reported by Lee, Hsu and Chang (2002) and the data presented in this work shows that the peaks of the decomposition temperature were between 10 and 18ºC higher for the commercial sample (HNS ... See full document

... An effective utilization of thermal plasma sources requires a thorough understanding of the heat transfer mechanism from the jet low to the materials under study. The mapping of the heat lux density from plasma jet was ... See full document

... Grid 2 is composed of 30,000 nodes and 29,631 cells, in which the distribution is 120 × 250 points, respectively, in the wall-normal and longitudinal ...and 2 are similar in reinement, but differ ... See full document

... metallic titanium production in Latin America; it succeeded Titanium Production in Brazil in placing on the Brazilian market a reasonable amount of Ti sponge (in the main program alone, around 30t was Studies on metallic ... See full document

... Falcão Filho, J. B. P., Góes, L. C. S., Ortega, M. A., 2000b, David, S., Moraes, P. Jr., Uyeno, S., Cavalcanti, S. G., “Transiente em Túnel de Vento Transônico pelo uso Nogueira, S. L., 1985, “Relatório do Grupo ... See full document

... Firstly, chemical pickling is carried out to remove the oxide layer. Initial tests establish the average time for immersing the test specimens in successive acid solutions baths (70% nitric acid, 50% hydroluoric acid and ... See full document

... This excessive partnership between scientific institutions and industry affects research, teaching, funding, ethics, scientific publications and many other important a[r] ... See full document

... It was noted that 61% of small and medium technology-based companies of the aeronautical sector located in Caçapava, São José dos Campos and Taubaté are proactive follow[r] ... See full document

... process), 2) SiC ilm processing (optimization of etching process and metallization appropriate for high temperature applications), 3) microfabrication technology to fabricate miniaturized sensors and 4) sensors ... See full document

... Além destes, foram escolhidos como reagentes o butanodiol 1,4 como iniciador, o diclorometano e dicloroetano como solventes para obtenção da PECH, o ácido trifluoracético e a epicloridrina. Alguns reagentes selecionados ... See full document

... aziridínicos é lenta na ausência do nucleófilo, a adição deste O índice de acidez, como variável de processo, e o teor de reagente é imprescindível. As análises foram realizadas imina, representando a atividade química ... See full document