Co2 Injection
Mostrando 37-48 de 227 artigos, teses e dissertações.
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37. Avaliação da efetividade de remoção de cor de soluções corantes e efluentes têxteis pelo tratamento fotocatalítico de óxidos de ferro recobertos com dióxido de titânio
This work evaluated the use of ferrites encapsuled with titanium dioxide (CoFe2O4@TiO2) for photocatalytic removal of color of dye (Methylene Blue and HRFL Drimaren Blue) solutions and textile effluents. The CoFe2O4@TiO2 and TiO2 used in the tests was synthesized according to the polymeric precursors method, and the solids obtained were characterized by X ra
Publicado em: 2010
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38. Avaliação comparativa de materiais poliméricos em coletores de admissão para aplicações de motores diesel / Comparative evaluation of polymeric materials on intake manifold for diesel engines application
In the modem world where we live, due to incited competition in the automobilist market, emerges the necessity an engine much more economic and il is worsen by the international competition with the Asian markets. Thus, accelerate not only the race for the raise of the quality and cost reduction of products, but also for the environment topics, such as the r
Publicado em: 2010
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39. Analysis of populational variation and characterization of secondary metabolites in the leaves of Lychnophora granmongolense (Duarte) Semir &Leitão Filho. / Análise de variação populacional e caracterização dos metabólitos secundários presentes nas folhas de Lychnophora granmongolense (Duarte) Semir &Leitão Filho
One of the main characteristics of plants of the Asteraceae family is their capacity to produce a huge diversity of secondary metabolites having therapeutic and toxic effects. An analytical method was developed based on HPLCDAD which was used to verify the existence of variations in Lychnophora granmongolense (Duarte) Semir &Leitão Filho secondary metabolit
Publicado em: 2010
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40. NUMERICAL MODELING OF THE CO2 INJECTION IN SALINE AQUIFERS: INVESTIGATION OF THE RELEVANT PARAMETERS FOR OPTIMIZING THE STORAGE IN CCS ¿ CARBON CAPTURE AND STORAGE PROJECTS / MODELAGEM NUMÉRICA DA INJEÇÃO DE CO2 EM AQÜÍFEROS SALINOS: INVESTIGAÇÃO DOS PARÂMETROS RELEVANTES PARA OTIMIZAR O ARMAZENAMENTO EM PROJETOS DE CCS - CARBON CAPTURE AND STORAGE
This work shows an analysis of the technique of carbon dioxide injection into saline aquifers with the purpose of discharge and storage. The final goal was to obtain the features of the aquifer, and of the injection process, to be selected in order to make the amount of stored CO2 higher and the injection time smaller. Considering such objective it was initi
Publicado em: 2009
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41. DEVELOPMENT OF FLOW PROCEDURES INVOLVING SOLID-PHASE REACTOR AND ANALYTICAL MICROSYSTEM CONSTRUCTED WITH LTCC (LOW TEMPERATURE CO-FIRED CERAMICS) TO DETERMINATION OF ANALYTES OF PHARMACEUTICAL INTEREST / Desenvolvimento de procedimentos em fluxo envolvendo reatores em fase sólida e microssistema analítico construído com LTCC (Low Temperature Co-fired Ceramics) para a determinação de analitos de interesse farmacêutico
The employment of flow injection systems to determination of N-acetylcysteine, captopril, dipyrone and fluoxetine hydrochloride in pharmaceutical formulations was investigated. The N-acetylcysteine was determinated employing a solid-phase reactor containing Zn3(PO4)2 immobilized in a polyester resin coupled to a flow injection system. The procedure was based
Publicado em: 2009
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42. Determinação simultânea de cátions empregando eletroforese capilar com detecção condutométrica sem contato em equipamento construído em laboratório
This work describes the development of a home-made capillary electrophoresis (CE) system based on the capacitively coupled contactless conductivity detection (C4D) for the separation of the metallic species Zn2+, Cr3+, Pb2+, Cd2+, Co2+, Cu2+, Ni2+ e Tl+. A background electrolyte composed of MES/Histidine 0,02 mol L-1 (pH 5.0) was optimized for the separation
Química Nova. Publicado em: 2009
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43. Activation of proteinase-activated receptor 2 activation, a signal to joint innate immune responses. / Ativação do receptor ativado por protease 2, um sinal para resposta imunológica inata na articulação temporomandibular.
We hypothesised that the early pro-inflammatory effects of proteinase-activated receptor 2 (PAR2) activation in the temporomandibular joint (TMJ) are mediated by neurogenic mechanisms. Immunofluorescence analysis revealed a high degree of neurons expressing PAR2 in retrogradely labelled trigeminal ganglion neurons. Furthermore, PAR2 immunoreactivity was obse
Publicado em: 2009
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44. DEVELOPMENT OF A CAPILLARY ELECTROPHORESIS SYSTEM WITH CONTACTLESS CONDUCTIVITY DETECTION (C4D) FOR THE SEPARATION OF INORGANIC IONS / DESENVOLVIMENTO DE EQUIPAMENTO DE ELETROFORESE CAPILAR COM DETECÇÃO POR CONDUTIVIDADE SEM CONTATO PARA A SEPARAÇÃO DE ÍONS INORGÂNICOS
This work describes the development and evaluation of a home-made capillary electrophoresis (CE) system based on the capacitively coupled contactless conductivity detection (C4D) for the application in capillary zone electrophoresis (CZE). The C4D detection is based on prototypes previously described in the literature. The equipment constructed has a hydrody
Publicado em: 2009
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45. DESENVOLVIMENTO E OTIMIZAÇÃO DE METODOLOGIA PARA ANÁLISE DE ATRAZINA E SEUS PRODUTOS DE DEGRADAÇÃO POR CROMATOGRAFIA LÍQUIDA DE ALTA EFICIÊNCIA E ELETROFORESE CAPILAR
Atrazine is an herbicide widely used on crops of major economic relevance as corn and sugar cane. The widespread use of this herbicide can cause its accumulation or contamination of environmental matrices. In addition, the degradation products of atrazine also deserve attention. This study aims to develop methodology for the analysis of atrazine and its deri
Publicado em: 2009
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46. Avaliação dos efeitos da injeção de gás na câmara de vácuo do modelo físico de um desgaseificador RH
Steels with low concentrations of nitrogen, hydrogen and carbon have in large demand lately. The RH process is a secondary refining process that can simultaneously attain significant levels of removal of these interstitial elements from liquid steel. In the RH process, the melt circulation rate plays a very important role in determining productivity of the e
Publicado em: 2008
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47. Fabricação e caracterização de dispositivos poliméricos emissores de luz com camada ativa de poli(2-metóxi, 5-(2-etil-hexilóxi)-1,4-fenileno vinileno) (MEH-PPV) / Fabrication and characterization of polymer light-emitting diodes with active layer composed by poly(2-methoxy, 5-(2-etil-hexilhoxy)-1,4-phenilene vinilene) (MEH-PPV).
Polymer light emitting diodes (PLEDs) have been widely investigated as candidate materials for display fabrication. The main advantages exhibited by PLEDs are the low-cost processing and possibility of large-area display fabrication, in comparison to the conventional liquid crystal displays (LCDs). Although the engineering aspects concerning device fabricati
Publicado em: 2008
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48. Ligas magnéticas à base de FeCo processadas via moldagem de pós por injeção
Different processing methods for FeCo-based alloys were tested for use in the injection molding manufacturing technique, aiming at optimization of the properties of the final product as well as cost reduction. The following parameters were analyzed: the use of either elemental or pre-alloyed metallic powders as precursors; the insertion of vanadium in the Fe
Publicado em: 2008