Operational Mode
Mostrando 13-24 de 71 artigos, teses e dissertações.
-
13. Levantamento de mapas operacionais de transferência metálica para soldagem MIG/MAG de aço ao carbono na posição plana / Operational Mapping of Metal Transfers for Carbon Steel Gas Metal Arc Welding in Flat Position
The MIG/MAG process is nowadays the most important welding process. This is due to its high production capacity, characteristic searched by industries to improve their manufacturing processes. Thus, due to this process relevance, development of tools that helps to understanding how it works comes out as necessary, especially in relation to proper welding set
Publicado em: 2010
-
14. Webradio : um expediente cognitivo para a divulgação da produção científica. / Webradio : a cognitive device for the dissemination of scientific.
It examines the implications of integrated Internet radio (webradio) as a cognitive device for the dissemination of scientific knowledge construction and ownership. Were mapped webradios the university in the country today, identified the concepts and techniques related to them, in context of cyberspace and the generations of the Web, checking the applicabil
Publicado em: 2010
-
15. Modelamento matemático do processo de soldagem GMAW
This thesis describes the development and validation of a mathematical model that describes the electrical and operational behavior of GMA welding. Initially it was developed a static model that was able to simulate welding conditions characterized by small current and tension variation usually found with free-flight metal transfer. Afterwards, a dynamic mod
Publicado em: 2010
-
16. PRIORIZAÇÃO DOS MODOS DE FALHA DE EQUIPAMENTOS UTILIZANDO OS MÉTODOS DE ANÁLISE MULTICRITÉRIO PROMETHEE E FUZZY PROMETHEE / PRIORITIZATION OF FAILURE MODES OF EQUIPMENT USING THE METHODS OF MULTICRITERIA ANALYSIS PROMETHE AND FUZZY PROMETHE
Aiming to meet the criteria of availability and reliability required by the rules of the Brazilian electric sector, energy companies have increased the use of systems for monitoring and diagnosis. This allows the identification of prior evidence of abnormalities in the operational condition of substation equipment, enabling the practice of predictive mainten
Publicado em: 2009
-
17. Emulação e co-simulação do sistema de controle de atitude da PMM e do sistema eletro-hidráulico de uma aeronave usando FPGAs / Emulation and co-simulation of PMM attitude control system and aircraft electro-hydraulic system using FPGAs
This work addresses the different development processes that leads to the implementation of simulation and control algorithms into a FPGA. As case study two applications were selected: first, the three axis stabilization of an artificial satelite with fine pointing, in its Nominal operational mode; and second, the position control loop of an electro-hydrauli
Publicado em: 2009
-
18. Assessment of polarimetric ALOS PALSAR data for Amazon land cover classification / Avaliação de dados polarimétricos do sensor ALOS PALSAR para classificação da cobertura da terra da Amazônia
Amazon Forest is considered the largest tropical forest of the planet. It keeps considerable part of the biodiversity and has great importance to the biogeochemistry cycles. The anthropic actions cause destructive processes such as deforestations and burnings, which can provoke unbalances on the ecosystem. This scenario highlights the importance of the monit
Publicado em: 2009
-
19. Monitoramento em linha de reações de copolimerização em emulsão de acetato de vinila e acrilato de butila em um reator contínuo pulsado de pratos perfurados usando espectrocospia NIR. / In-line monitoring of vinyl acetate and butyl acrylate emulsion copolymerization in a continuous pulsed sieve plate reactor using NIR spectroscopy.
This work deals with the study of the viability and sensitivity of the on-line monitoring, using NIR spectroscopy, of monomers and polymer concentration and average particle size during continuous vinyl acetatebutyl acrylate emulsion copolymerization carried out in a novel tubular pulsed sieve plate reactor. For the elaboration of NIR calibration models of t
Publicado em: 2009
-
20. Evaluation of boom hydraulic sprayers in the region of Uberlândia-MG / Avaliação de pulverizadores hidráulicos de barra na região de Uberlândia-MG
Any and every manner of pesticide application represents environmental risks, which must be minimized by the use of proper knowledge and technology, assuring a sustainable food production. Often, great importance is given to the pesticide and little to the application technique. The identification of the conservation state and mode of use of the sprayers in
Publicado em: 2009
-
21. Assimilação de dados das estações meteorológicas automática da FUNCEME. / Assimilation of data from automatic weather stations FUNCEME.
An observed data assimilation (ODA) technique is evaluated regarding its effects on the performance of a mesoscale atmospheric model (Regional Atmospheric Modeling System, RAMS 6.0) in a weather forecast simulation for the five first days of January 2005, which represents a transitional period in the wind regime over northern Northeast Brazil (between the dr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2008
-
22. Otimização dinâmica da fermentação alcoólica no processo embatelada alimentada
This work presents an experimental and theoretical study of the dynamic optimization of the alcoholic fermentation in fed-batch mode utilizing the Saccharomyces cerevisiae yeast in a bioreactor of 5 L. Twelve experiments were carried out, three them in batch and nine in fed-batch mode, with initial sucrose concentrations between 154 and 195.6 g/L for the exp
Publicado em: 2008
-
23. OtimizaÃÃo dinÃmica da fermentaÃÃo alcoÃlica no processo embatelada alimentada
This work presents an experimental and theoretical study of the dynamic optimization of the alcoholic fermentation in fed-batch mode utilizing the Saccharomyces cerevisiae yeast in a bioreactor of 5 L. Twelve experiments were carried out, three them in batch and nine in fed-batch mode, with initial sucrose concentrations between 154 and 195.6 g/L for the exp
Publicado em: 2008
-
24. Localização de faltas em linhas de transmissão: desenvolvimento de novos algoritmos e implementação de sistema computacional para aplicações práticas
Transmission line automatic fault location allows to estimate the approximate point at the line where the short-circuit occurs, using voltage and current data from one or more of its ends. The maintenance team can reach the fault local and restore the operational conditions fast and more efficiently, increasing the reliability of the power electric system an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/06/2007