Factorial Planning
Mostrando 13-24 de 80 artigos, teses e dissertações.
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13. Síntese e caracterização de poliuretano à base de óleo de Mabea fistulifera Mart. e sua utilização para remoção de corantes têxteis / Synthesis and characterization of Mabea fistulifera Mart. oil based polyurethane its use for textile dyes removal
Hard polyurethane polymers (PU-1, PU-2, PU-3 and PU-4) were developed in this study, obtained from polyols derived from Mabea fistulifera Mart oil. The chemical modification of the oil occurred through an in situ hydroxylation reaction employing acetic acid, hydrogen peroxide and sulfuric acid. The reaction conditions were optimized using a factorial composi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2011
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14. Relação entre impulsividade e suícidio em pacientes com transtorno afetivo bipolar
Many studies have investigated the possible relationship between suicide attempts and impulsivity in patients with bipolar disorder, but their results often conflict. This absence of uniform results may be related to methodological and conceptual matters such as the difficulty in defining impulsivity. The aim of this research was to evaluate the relationship
Publicado em: 2011
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15. Estudo dos principais fatores que influenciam na solubilização dos hpas em águas
Os hidrocarbonetos policíclicos aromáticos (HPAs) constituem uma família de compostos caracterizada por possuírem dois ou mais anéis aromáticos condensados e por ser uma classe de substâncias que estão amplamente distribuídas no ambiente como uma mistura complexa, sendo bastante persistentes no ambiente devido a sua baixa solubilidade em água. A ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2010
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16. Estudo experimental das solubilidades de alguns ácidos em misturas hidro-alcoólicas
Solubility data of chemistry compounds in water and in solvent mixtures are fundamental in the project of separation industrial equipments, such as: crystallizers, extractors, evaporators, leachates and absorption units. The accuracy that it is obtained in projects of chemistry industry equipment is closely related with the quality of experimental data used
Publicado em: 2010
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17. Desenvolvimento de biossensores eletroquímicos, utilizando matriz polimérica modificada com biomoléculas, para o diagnóstico de câncer de próstata e hepatite C
The development of biologic sensors has become a wide activity in science seeking mainly health and environmental issues. The biosensor development in laboratory has been investigated by many researchers seeking sensitivity, specific, low cost and portable devices. The electrochemical techniques are used in the largest number of works due to the easiness in
Publicado em: 2010
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18. Comparação dos processos de eletrodeposição de íons cobre usando reatores de leito fluidizado e leito de jorro
In this work was studied the process of removal of ions has covered simulated effluent gifts in watery having used electrochemical reactor of fluidized stream bed and of stream bed of I gush out whose porous cathodes were composites for conducting copper particles. Applying an factorial planning Box-Behnken the effect of the electric chain had been studied,
Publicado em: 2010
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19. Análise multirresíduo de agrotóxicos em abacaxi por CG/DCE / Analysis multiresidue of pesticides in pineapple by GC/ECD
The objectives of this work were to optimize the technique of extraction by matrix solid-phase dispersion (MSPD) and the solid-liquid with partition in low temperature extraction technique (SLE-LTP), and to validate this latter, to the residues analysis of the pesticides atrazine, thiamethoxam, triadimenol and deltamethrin in pineapple samples, by gas chroma
Publicado em: 2010
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20. Estudo da interação de íons cobre e cromo com eletrodos de pasta de carbono modificada e polianilina em meio aquoso por técnica de voltametria de pulso diferencial / Modified Carbon Paste Electrodes and Polyaniline Electrodes: Study of their interaction with copper and chromium aquous metallic ions by Differential Pulse Voltammetry
The electrochemical sensors to measure metallic ions in water and waste water are among the most important areas of research nowadays. The environmental control and monitoring chalenges that stimulated the aim of this work are tanification for industrial leather finishing and cuprous and cupric organic and inorganic fungicides. The features for characterizat
Publicado em: 2010
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21. Integration of microbiological treatment with immobilized cells and emerging (Advanced Oxidation Process) technologies for wastewater treatment generated in the textile industry. / Integração do tratamento microbiológico com células imobilizadas e tecnologias emergentes (Processos Oxidativos Avançados) para o tratamento de efluentes gerados na indústria têxtil.
The integration of different treatment processes in the degradation of textile wastewater was evaluated using precipitation technique, advanced oxidation processes (AOP) and aerobic biological treatment. AOPs (Ozone/UV and reagent of Fenton/UV) were evaluated in batch experiments according to a factorial planning L18 (Tagushi Method) in function of the flow
Publicado em: 2009
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22. Use of solutions hidrotrópicas in delignification of sugarcane cane bagasse / Uso de soluções hidrotrópicas na deslignificação do bagaço de cana-de-açúcar
The production of sugar, energy and ethanol from sugar cane is one of the most important activities of Brazil and generates a enormous quantity of bagasse which can be used to increase the ethanol production. In this sense, the study of sugarcane bagasse is a very important task, in both technical and scientific approaches. Thus, the pre-treatment of sugar c
Publicado em: 2009
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23. Furação de ferros fundidos austemperados e nodular perlítico / Machinability of Austempered Ductile Irons and Pearlitic Ductile Iron in Drilling Process
Many materials have mechanical proprieties improved by heat treatments, but this can cause changes in the structure of the material, worsening its machinability, as in the case of austempered ductile iron (ADI) that despite of presenting better mechanical proprieties it has lower machinability when compared with the conventional ductile iron and steel of sim
Publicado em: 2009
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24. Concreto celular polimérico: influência na adição de resíduo de poliéster insaturado termofixo
This work addresses the production of lightweight concrete building elements, such as plates, prefabricated slabs for pre-molded and panels of fencing, presenting a singular concrete: the Lightweight Concrete, with special properties such low density and good strength, by means of the joint use of industrial waste of thermosetting unsaturated polyesters and
Publicado em: 2009