Test Machines
Mostrando 13-24 de 81 artigos, teses e dissertações.
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13. Comprobación de la uniformidad de resultados de un equipo de ensayos simultáneos de termofluencia
ABSTRACT The phenomenon of creep occurs in materials that operate under high temperatures and mechanical stresses, causing changes in their structures; such changes are evidenced by a progressive loss of mechanical strength. The characterization of this phenomenon should be performed with appropriate test machines, which are usually dependent on expensive te
Matéria (Rio J.). Publicado em: 19/07/2018
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14. Numerical Study of the b-Ξ Flame Wrinkling Combustion Model in Oracles Test Rig
ABSTRACT: Numerical modeling of premixed combustion is important for a wide range of machines and systems focusing on compliance with the increasing pollutants reduction requirements. However good industrial numerical combustion models need a practical requiring, in this way, a balance between speed and accuracy. The flamelet models are suitable for this pur
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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15. Concrete road barriers subjected to impact loads: An overview
Abstract Concrete barriers prevent vehicles from entering the opposite lane and going off the road. An important factor in the design of concrete barriers is impact load, which a vehicle exerts upon collision with a concrete barrier. This study suggests that a height of 813 mm, a base width of 600 mm, and a top width of 240 mm are optimum dimensions for a co
Lat. Am. j. solids struct.. Publicado em: 2015-10
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16. FSM-Based Test Case Generation Methods Applied to Test the Communication Software on Board the ITASAT University Satellite: A Case Study
ABSTRACT: The software in satellite applications has become increasingly larger, more complex and more integrated, so its verification and validation require exploration of new approaches. In this paper we present a Model-Based Testing (MBT) approach applied to the Communication Module of the ITASAT-1 university satellite. The models are Finite State Machine
J. Aerosp. Technol. Manag.. Publicado em: 2014-12
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17. O comportamento dos custos de produção do café arábica em relação a venda de máquinas agrícolas no estado de Minas Gerais
Brazil stands out on the world stage with regard to the marketing of agricultural products, ranking third in the world rankings when it comes to exports, according to the World Trade Organization - WTO (2011). The agricultural sector is the second-level employment in the country, according to the Brazilian Institute publishes Economic Geography - IBGE (2011)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2012
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18. Molecular epidemiology of Staphylococcus aureus isolates at different sites in the milk producing dairy farms
The epidemiological relationships between isolated Staphylococcus aureus strains in milk samples of dairy cows, reagent to California Mastitis Test, individual and group milk was demonstrated in different sites of the production fluxogram, in 12 milk-producing farms in the Gameleira region, municipality of Sacramento MG Brazil, so that localization and trans
Braz. J. Microbiol.. Publicado em: 2012-12
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19. The antimicrobial effect of 0.1 ppm ozonated water on 24-hour plaque microorganisms in situ
Ozone is a known oxidant present in the atmosphere and is commercially produced by simple ozonizer machines. It is a powerful antimicrobial agent in its gaseous and aqueous forms. Ozone readily dissolves in water and retains its antimicrobial property even in the dissolved state. In this study, the effect of 0.1 ppm ozonated water was analyzed on 24-hour sup
Brazilian Oral Research. Publicado em: 2012-04
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20. Caracterização de ligas magnéticas sinterizadas para aplicação em núcleos de máquinas elétricas rotativas
The purpose of this work is to study the properties of ferromagnetic alloys obtained by Powder Metallurgy to construct cores of Rotary Electric Machines, usually mounted on rolled steel sheets. To perform these activities, iron power and their alloys obtained by a mixture with different percentages of phosphorus (1, 2 and 3%), silicon (1, 3 and 5%) and nicke
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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21. Análise de fatores que afetam o comportamento de spammers na rede
The transmission of unwanted messages through the Internet, or spam, is a serious problem, still unsolved, and which leads to million-dollar losses all over the world, be it for the resources consumed by that message trafic or for the impact of scams. The goal of this work is to better understand the behavior of spammers (those responsible for sending spam m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
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22. Uma abordagem evolutiva multiobjetivo para geração automática de casos de teste a partir de máquinas de estados / A multi-objective evolutionary approach for automatic generation of test cases from state machines
A geração automática de casos de teste contribui tanto para melhorar a produtividade quanto para reduzir esforço e custo no processo de desenvolvimento de software. Neste trabalho é proposta uma abordagem, denominada MOST (Multi-Objective Search-based Testing approach from EFSM), para gerar casos de teste a partir de Máquina de Estados Finitos Estendid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011
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23. Simulação, projeto e teste de um gerador a relutância chaveado trifásico 6 x 4 / Simulation, design and test of a three-phase switched reluctance generator 6 x 4
Switched reluctance machines have received considerable attention from the scientific community due to advances in power electronics, and now is considered a promising electric machine for some applications, especially where variable speed operations are needed for motor or generator. Therefore, this work presents the dynamics of a switched reluctance machin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2011
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24. Desenvolvimento de um revolvedor mecânico de café e seu desempenho operacional e ergonômico / Development of a coffee mechanical homogenizer and its operating performance and ergonomic
O processo de secagem é considerado a etapa da pós-colheita do café de maior custo e que demanda maior tempo e maiores cuidados, pois pode interferir diretamente na qualidade final do produto. Este processo em secadores de camada estacionária é uma alternativa de baixo custo que permite agilizar o processo e minimizar a área utilizada. Por outro lado,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011