Search Results - "MENDES FILHO, J"

Polarized Raman and Infrared Spectroscopy and ab Initio Calculation of Palmitic and Stearic Acids in the Bm and C Forms by L. da Silva, L. F, Andrade-Filho, T, Freire, P. T. C, Filho, J. Mendes, da Silva Filho, J. G, Saraiva, G. D, Moreira, S. G. C, de Sousa, F. F

“…A complete experimental study on the vibrational properties of palmitic and stearic acids crystallized in the Bm and C forms, both belonging to the monoclinic…”
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Temperature-induced phase transformations in Na2WO4 and Na2MoO4 crystals by Lima, C. Luz, Saraiva, G. D., Freire, P. T. C., Maczka, M., Paraguassu, W., de Sousa, F. F., Mendes Filho, J.

“…Temperature‐dependent Raman studies on Na2WO4and Na2MoO4 crystals were performed in order to obtain information on structural changes induced by temperature…”
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Raman spectroscopy of l,l-diphenylalanine crystal under high pressure by da Silva Filho, J.G., Filho, J. Mendes, Melo, F.E.A., Lima, J.A., Freire, P.T.C.

“…The l,l-diphenylalanine can self-assemble into long and stiff nanotubes with remarkable mechanical and chemical stability. In this work, Raman spectroscopy was…”
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Raman spectroscopy of monohydrated L-asparagine up to 30 GPa by Silva, J AF, Freire, P TC, Lima, J A, Mendes Filho, J, Melo, F EA, Moreno, A JD, Polian, A

“…Amino acid crystals are important systems for investigating chemical bonds of biochemical interest. Raman spectroscopy was used to study the vibrational…”
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1,2-Dichlorobenzene Interacting with Carbon Nanotubes by Fagan, Solange B, Souza Filho, A. G, Lima, J. O. G, Filho, J. Mendes, Ferreira, O. P, Mazali, I. O, Alves, O. L, Dresselhaus, M. S

“…The interaction of 1,2-dichlorobenzene (DCB) with carbon nanotubes is analyzed by experimental and theoretical methods. Using first-principles calculations we…”
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Temperature-dependent Raman scattering studies on Na2Mo2O7 disodium dimolybdate by Saraiva, G. D., Paraguassu, W., Maczka, M., Freire, P. T. C., de Sousa, F. F., Mendes Filho, J.

“…Temperature–dependent Raman studies of disodium dimolybdate (Na2Mo2O7) crystal are reported. Lattice dynamical calculation was used to predict both wavenumbers…”
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Raman spectroscopy of l-phenylalanine nitric acid submitted to high pressure by da Silva, K. Pereira, Ptak, M., Pizani, P.S., Filho, J. Mendes, Melo, F.E.A., Freire, P.T.C.

“…In the present work we show a systematic investigation on vibrational properties of l-phenylalanine nitric acid [2C9H11NO2·H+·NO3−] single crystal obtained by…”
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Studies of catalytic activity and coke deactivation of spinel oxides during ethylbenzene dehydrogenation by Freire, Rafael M., de Sousa, Francisco F., Pinheiro, Anderson L., Longhinotti, Elisane, Filho, J. Mendes, Oliveira, Alcemira C., Freire, Paulo de Tarso C., Ayala, Alejandro P., Oliveira, Alcineia C.

“…Among the spinel oxides studied, NiAl 2O 4 showed the highest conversion in ethylbenzene dehydrogenation with CO 2 to produce styrene. The causes of the…”
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The temperature-dependent single-crystal Raman spectroscopy of a model dipeptide: l-Alanyl-l-alanine by Silva, J.G., Arruda, L.M., Pinheiro, G.S., Lima, C.L., Melo, F.E.A., Ayala, A.P., Filho, J. Mendes, Freire, P.T.C.

“…[Display omitted] •Temperature dependent polarized Raman spectra of the l-alanyl-l-alanine.•The crystal of l-alanyl-l-alanine undergoes a structural phase…”
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Lattice dynamics and low-temperature Raman spectroscopy studies of PMN-PT relaxors by Lima, J. A., Paraguassu, W., Freire, P. T. C., Souza Filho, A. G., Paschoal, C. W. A., Filho, J. Mendes, Zanin, A. L., Lente, M. H., Garcia, D., Eiras, J. A.

“…In this work we present a Raman scattering study of a specific region of the morphotropic phase boundary (MPB) of the [Pb(Mg1/3Nb2/3)O3]1−x (PbTiO3)x relaxor…”
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Pressure-induced phase transitions in ferroelectric Bi2MoO6--a Raman scattering study by Mączka, M, Freire, P T C, Luz-Lima, C, Paraguassu, W, Hanuza, J, Mendes Filho, J

“…A high pressure Raman scattering study of Bi(2)MoO(6), a member of the bismuth layered Aurivillius family of ferroelectrics, is presented. This study showed…”
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Raman Spectra in Vanadate Nanotubes Revisited by Souza Filho, A. G, Ferreira, O. P, Santos, E. J. G, Mendes Filho, J, Alves, O. L

“…In this letter we report the Raman spectra of vanadate nanotubes (VONTs). The spectra present a clear signature that can be used for probing the tubular…”
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Raman spectroscopy of d-methionine under high pressure by Melo, W.D.C., Freire, P.T.C., Filho, J. Mendes, Melo, F.E.A., Lima, J.A., Paraguassu, W.

“…[Display omitted] •d-Methionine crystal was submitted to high pressure conditions.•d-Methionine undergoes two pressure induced phase transitions.•Based on the…”
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Temperature-dependent Raman scattering studies of Na2MoO4 by Saraiva, G. D., Paraguassu, W., Maczka, M., Freire, P. T. C., Lima Jr, J. A., Paschoal, C. W. A., Mendes Filho, J., Souza Filho, A. G.

“…The mode assignment of the cubic phase of anhydrous Na2MoO4 was carried out on the basis of lattice dynamic calculation using the classical rigid‐ion model…”
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Charge transfer effects in acid treated single-wall carbon nanotubes by Barros, E.B., Filho, A.G. Souza, Lemos, V., Filho, J. Mendes, Fagan, S.B., Herbst, M.H., Rosolen, J.M., Luengo, C.A., Huber, J.G

“…Single-wall carbon nanotubes (SWNTs) prepared by the arc discharge method were oxidized using nitric acid. The samples were analyzed by using Raman scattering…”
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Pressure-induced phase transitions in palmitic acid: C form by de Sousa, F. F., Saraiva, G. D., Freire, P. T. C., Lima Jr, J. A., Alcantara Jr, P., Melo, F. E. A., Mendes Filho, J.

“…In this article, we report a high‐pressure Raman spectroscopy study of palmitic acid (PA, C form) from ambient pressure up to 21 GPa. The effects of…”
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Micromorphology and microrheology of modified bitumen by atomic force microscopy by Rebelo, L.M., Cavalcante, P.N., de Sousa, J.S., Mendes Filho, J., Soares, S.A., Soares, J.B.

“…The rheological study of bitumen is essential to improve the performance of pavements. Bitumen properties are traditionally determined by means of dynamic…”
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Comparison of the viscoelastic properties of cells from different kidney cancer phenotypes measured with atomic force microscopy by Rebelo, L M, de Sousa, J S, Mendes Filho, J, Radmacher, M

“…The viscoelastic properties of human kidney cell lines from different tumor types (carcinoma (A-498) and adenocarcinoma (ACHN)) are compared to a…”
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Raman spectroscopy study of Na2MoO4·2H2O and Na2MoO4 under hydrostatic pressure by Luz-Lima, C., Saraiva, G. D., Filho, A. G. Souza, Paraguassu, W., Freire, P. T. C., Mendes Filho, J.

“…Raman spectroscopy measurements of polycrystalline Na2MoO4·2H2O (NMHO) and Na2MoO4 (NM) under hydrostatic pressure (from 0 to 10 GPa) were performed. This…”
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Strain-induced interference effects on the resonance Raman cross section of carbon nanotubes by Souza Filho, A G, Kobayashi, N, Jiang, J, Grüneis, A, Saito, R, Cronin, S B, Mendes Filho, J, Samsonidze, Ge G, Dresselhaus, G, Dresselhaus, M S

“…In this Letter, we report the effects of strain on the electronic properties of single-wall carbon nanotubes. When we normalize the electronic transition…”
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