Search Results - "Sampaio, J.A"

Primary hepatic neuroendocrine tumor: A case report by Rodrigues, P.D, Diedrich, J.A, Balbinot, D.R, Giacomazzi, C.B, Waechter, F.L, Goldoni, M.B, Teixeira, U.F, Fontes, P.R.O, Sampaio, J.A, Pereira-Lima, L.M

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Influence of oxygen on the giant magnetocaloric effect of Gd5Si1.95Ge2.05 by WU, W, TSOKOL, A. O, GSCHNEIDNER, K. A, SAMPAIO, J. A

“…The influence of oxygen on the 5:4 (i.e. 5Gd:4[Si + Ge]) monoclinic Gd5Si1.95Ge2.05 was investigated. Five oxygen-containing alloys, Gd5Si1.95Ge2.05Ox, were…”
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Thermo-optical and structural properties of barium aluminoborate glasses by Carneiro, G.N., Vargas, H., Sampaio, J.A.

“…In this work, we have prepared 22 barium aluminoborate glass compositions and investigated their thermo-optical and structural properties. The non-hygroscopic…”
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Structural and magnetic analysis of La 0.67 Ca 0.33 MnO 3 nanoparticles thermally treated: Acoustic detection of the magnetocaloric effect by Pena, C.F., Soffner, M.E., Mansanares, A.M., Sampaio, J.A., Gandra, F.C.G., da Silva, E.C., Vargas, H.

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Structural and magnetic analysis of La0.67Ca0.33MnO3 nanoparticles thermally treated: Acoustic detection of the magnetocaloric effect by Pena, C.F., Soffner, M.E., Mansanares, A.M., Sampaio, J.A., Gandra, F.C.G., da Silva, E.C., Vargas, H.

“…Nanoparticles of La0.67Ca0.33MnO3 were synthesized via the sol-gel method, thermally treated and characterized using X-ray diffraction, magnetization, electron…”
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Assessment of nonradiative relaxation time and characteristic diffusion time of neodymium, erbium and cobalt doped low silica calcium aluminosilicate glasses by Mota, L., Sampaio, J.A., da Silva, M.G., Vargas, H.

“…[Display omitted] ► Photoacoustic assessment of nonradiative relaxation and diffusion times. ► Rare earth ions act as glass network modifiers decreasing bonds…”
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Eu3+ photoluminescence enhancement due to thermal energy transfer in Eu2O3-doped SiO2–B2O3–PbO2 glasses system by Lourenço, S.A., Dantas, N.O., Serqueira, E.O., Ayta, W.E.F., Andrade, A.A., Filadelpho, M.C., Sampaio, J.A., Bell, M.J.V., Pereira-da-Silva, M.A.

“…In this work, Eu3+-doped lead borosilicate glasses (SiO2–B2O3–PbO2) synthesized by fusion method had their optical properties investigated as a function of…”
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On the use of photothermal methods for thermal characterization of sedimentary rocks from the Paraná Basin in Brazil by Guimarães, A.O., Viana, D.A., Cordeiro, T.C., Sampaio, J.A., da Silva, E.C., Toledo, R., Ribeiro, H.J.P.S., Carrasquilla, A.A.G., Vargas, H.

“…The thermal conductivity, thermal diffusivity, specific heat and thermal effusivity of rocks taken from Paraná Basin, in Brazil, have been measured using…”
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Fluorescence quantum efficiency of Er3+ in low silica calcium aluminate glasses determined by mode-mismatched thermal lens spectrometry by SAMPAIO, J. A, GAMA, S, BAESSO, M. L, CATUNDA, T

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A photothermal study on chromium doped low silica calcium aluminate glass by Siqueira, A.P.L., Sampaio, J.A., Filadelpho, M.C., Andrade, A.A., Vargas, H.

“…The photoacoustic technique is used to obtain thermal parameters which are important in the development of photonic materials. The thermo-optical properties,…”
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Synthesis of ceria-praseodymia pigments by citrate-gel method for dental restorations by Santos, S.F., de Andrade, M.C., Sampaio, J.A., da Luz, A.B., Ogasawara, T.

“…The objective of this paper was to synthesize both pure and praseodymia-doped ceria by using polymeric precursor method for their use as pigments for…”
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Mode-mismatched thermal lens spectrometry for thermo-optical properties measurement in optical glasses: a review by Lima, S.M., Sampaio, J.A., Catunda, T., Bento, A.C., Miranda, L.C.M., Baesso, M.L.

“…In this work, the application of thermal lens spectrometry (TLS) to study thermo-optical and spectroscopic properties of optical glasses is described. The…”
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Influence of oxygen on the giant magnetocaloric effect of Gd 5Si 1.95Ge 2.05 by Wu, W., Tsokol, A.O., Gschneidner, K.A., Sampaio, J.A.

“…The influence of oxygen on the 5:4 (i.e. 5Gd:4[Si + Ge]) monoclinic Gd 5Si 1.95Ge 2.05 was investigated. Five oxygen-containing alloys, Gd 5Si 1.95Ge 2.05O x ,…”
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Fluorescence quantum efficiency of Er 3+ in low silica calcium aluminate glasses determined by mode-mismatched thermal lens spectrometry by Sampaio, J.A., Gama, S., Baesso, M.L., Catunda, T.

“…The fluorescence quantum efficiency of Er 3+ in low silica calcium aluminate glasses, with nominal composition 58 CaO, 27.1 − x Al 2O 3, 6.9 MgO, 8 SiO 2, x Er…”
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Thermal relaxation method to determine the specific heat of optical glasses by Medina, A.N., Caldeira, A.M.F., Bento, A.C., Baesso, M.L., Sampaio, J.A., Catunda, T., Gandra, F.G.

“…In this work the thermal relaxation method is applied to determine the specific heat of the following optical glasses: undoped chalcohalides (As 2S 3 and 40PbI…”
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Spectroscopic properties of water free Nd2O3-doped low silica calcium aluminosilicate glasses by PECORARO, E, SAMPAIO, J. A, NUNES, L. A. O, GAMA, S, BAESSO, M. L

“…Low silica calcium aluminosilicate glasses (LSCA) doped with different concentrations of Nd2O3 were prepared under vacuum conditions and investigated through…”
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Rare earth doping effect on the elastic moduli of low silica calcium aluminosilicate glasses by Sampaio, J.A., Baesso, M.L., Gama, S., Coelho, A.A., Eiras, J.A., Santos, I.A.

“…Elastic moduli ( E, G, K, ν) of calcium aluminosilicate glasses with <10 mol% of SiO 2 doped with Er 2O 3 and Yb 2O 3, melted in air and under vacuum…”
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EFEITO DA TEMPERATURA NA SÍNTESE DE FERTILIZANTES DO TIPO TERMOPOTÁSSIO by Silva, A.A.S, Medeiros, M.E, Sampaio, J.A, Garrido, F.M.S

“…No Brasil, o uso de fertilizantes intensificou-se com o propósito de aumentar a sua produtividade agrícola. Uma consequência disso é o aumento nas importações…”
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Spectroscopy, thermal and optical properties of Nd3+-doped chalcogenide glasses by LIMA, S. M, SAMPAIO, J. A, CATUNDA, T, DE CAMARGO, A. S. S, NUNES, L. A. O, BAESSO, M. L, HEWAK, D. W

“…Authors investigated the spectroscopic, thermo-optical and mechanical properties of 70% Ga2S3:30% La2S3 (mol%) chalcogenide glass and this composition doped…”
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Thermal lens versus DTA measurements for glass transition analysis of fluoride glasses by Sampaio, J.A., Lima, S.M., Catunda, T., Medina, A.N., Bento, A.C., Baesso, M.L.

“…In this work thermal lens spectrometry is applied to study fluoride glasses as a function of temperature. The experiments, in the temperature range between 20…”
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