Search Results - "SOARES, Demetrio A. W"

The Negative Photoconductivity of Ag/AgO Grown by Spray-Pyrolysis by de Paiva, Aline Bastos, Vargas, Luis Miguel Bolaños, da Silva, Matheus José, Rodrigues, Ariano De Giovanni, Soares, Demétrio A. W., Peres, Marcelos Lima, de Godoy, Marcio Peron Franco

“…The main goal of this work is to provide a general description of the negative photoconductivity effect observed in Ag/AgO films grown by the spray-pyrolysis…”
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Study of the Factors Responsible for the Rheology Change of a Brazilian Crude Oil under Magnetic Fields by Gonçalves, José L, Bombard, Antonio J. F, Soares, Demetrio A. W, Carvalho, Ricardo D. M, Nascimento, Andreas, Silva, Manoel R, Alcântara, Gláucia B, Pelegrini, Fernando, Vieira, Ernanni D, Pirota, Kleber R, Bueno, Maria I. M. S, Lucas, Gloria M. S, Rocha, Nelson O

“…Recently, some works showed that magnetic fields may reduce the paraffin crystallization and the viscosity of some types of oil. This Article shows the main…”
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Reduction of Paraffin Precipitation and Viscosity of Brazilian Crude Oil Exposed to Magnetic Fields by Gonçalves, José L, Bombard, Antonio J. F, Soares, Demetrio A. W, Alcantara, Glaucia B

“…The problems related to organic deposition on pipeline walls are well-known and have been challenging the petroleum industry since the primordial days. Some…”
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Resistive-type humidity sensors based on PVP-Co and PVP-I2 complexes by De Queiroz, Alvaro A. A., Soares, Demétrio A. W., Trzesniak, Piotr, Abraham, Gustavo A.

“…Poly(vinylpyrrolidone) films containing cobalt chloride or iodine were investigated to obtain information on their possible use as a humidity sensor element…”
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Study of Conductivity of dEPDM Rubber and PAni Blends by Alvares, Daniela A., Moreira, José C., Soares, Demétrio A. W., Machado, Wagner S., Scuracchio, Carlos H., Onmori, Roberto K.

“…Blending is a promising approach, in the conducting polymer field, for taking advantage of the good mechanical properties and processability of conventional…”
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Analysis of Conducting Poly(o-methoxyaniline) Blends by Impedance Spectroscopy by Machado, Wagner S., Moreira, José C., Onmori, Roberto K., Wang, Shu H., Soares, Demétrio A. W.

“…Impedance measurements were carried out in flexible, conducting and semi crystalline films obtained by casting poly(p‐hydroxystyrene)‐b‐polyisoprene (PHS‐b‐IR)…”
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Tuning positive and negative photoconductivity in Zn1-xCdxO films by Vargas, Luis M.B., de Castro, Suelen, Peres, Marcelos L., de Godoy, Marcio P.F., Soares, Demétrio A.W.

“…Photoconductivity investigation is performed on Zn1-xCdxO films and a transition from positive to negative photoconductivity is observed at room temperature as…”
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Reduction of Paraffin Precipitation and Viscosity of Brazilian Crude Oil Exposed to Magnetic Fields by GONCALVES, José L, BOMBARD, Antonio J. F, SOARES, Demetrio A. W, ALCANTARA, Glaucia B

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An investigation of cadmium(II) and nickel(II) adsorption by chitin graft copolymer by Filho, José A. R., Bach, Erna E., Vargas, Reinaldo R., Soares, Demétrio A. W., de Queiroz, Alvaro A. A.

“…Chitin hydrogels of poly(vinylpyrrolidone) (VP) were prepared by means of the hydrogen peroxide graft copolymerization process. The effect of the VP grafted…”
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Modeling of ZnS quantum dots synthesis by DFT techniques by de Queiroz, Alvaro A.A., Martins, Mayler, Soares, Demétrio A.W., França, Écio J.

“…Zinc sulfide (ZnS) and doped zinc sulfide (ZnS:Cu) were prepared by the polyol process using polyethylene glycol (PEG) as the ceramic precursor. Thiourea (TU)…”
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Electro- and photoconductive properties of the PVA/PAN-b blends by Soares, Demetrio A W, de Queiroz, Alvaro A A

“…The electrical conductivity of poly(vinylalcohol)/polyaniline-iodine blend (PVA/PAN-*b) prepared by solution process was investigated. The FTIR spectroscopy…”
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Tuning positive and negative photoconductivity in Zn^sub 1-x^Cd^sub x^O films by Vargas, Luis MB, de Castro, Suelen, Peres, Marcelos L, de Godoy, Marcio PF, Soares, Demétrio AW

“…Photoconductivity investigation is performed on Zn1-xCdxO films and a transition from positive to negative photoconductivity is observed at room temperature as…”
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