Patrick S. Simonário, Fernando C. Messias Freire, Luiz R. Evangelista, Rodolfo Teixeira Souza

Physics Letters A – Volume: 378; Issue: 4; Pages: 453–458; DOI:10.1016/j.physleta.2013.12.020

The bulk and the surface-like elastic constants of a nematic liquid crystal are calculated for an ensemble of particles interacting via anisotropic dispersion forces using the pseudo-molecular method. The geometrical anisotropy of the molecules is […]

Otávio A. Capeloto, Gustavo V. B. Lukasievicz, Vitor S. Zanuto, Leandro S. Herculano, Nilson E. Souza Filho, Andressa Novatski, Luis C. Malacarne, Stephen E. Bialkowski, Mauro L. Baesso e Nelson G. Castelli Astrath

Applied Optics – Volume: 53; Issue: 33; Pages: 7985-7991; DOI: 10.1364/AO.53.007985

The time-resolved thermal mirror technique is developed under pulsed laser excitation for quantitative […]

Hossein Nemati, Rafael S. Zola e Deng-Ke Yang

New Journal of Physics – Volume: 45; Issue: 1; Pages: 1500–1503; DOI: 10.1002/j.2168-0159.2014.tb00398.x

We developed reflective cholesteric displays whose color and reflectance can be electrically tuned. The displays were made from polymer stabilized cholesteric liquid crystals. Monomers and cholesteric liquid crystals were mixed and then polymerized under UV light. When the monomer […]

Ervin K. Lenzi, Marcelo K. Lenzi, Rafael S. Zola, Haroldo V. Ribeiro, Fernanda C. Zola, Luiz R. Evangelista e Giane Gonçalves

Physica A: Statistical Mechanics and its Applications – Volume: 410; Pages 399–406; DOI: 10.1016/j.physa.2014.05.055

The reaction process occurring on a solid surface where active sites are present is investigated. The phenomenon is described by a linear kinetic […]

Luis C. Malacarne, Elton L. Savi, Mauro L. Baesso, Ervin K. Lenzi e Nelson G. Castelli Astrath

The Journal of Physical Chemistry. A – Volume: 118; Issue: 31; Pages: 5983–5988; DOI: 10.1021/jp505255a

Photophysics processes are ubiquitous in nature and difficult to be quantitatively characterized by conventional spectroscopy. Alternatively, pump–probe methods have been widely applied to study these complex processes. […]

Cleber S. Alves, Flavio C. Colman, Gabriel L. Foleiss, Wesley Szpak, Gabriel T. Flores Vieira e Antonio C. Bento

International Journal of Refrigeration – Volume: 37; Pages: 215–222; DOI: 10.1016/j.ijrefrig.2013.09.031

The increasing demand for energy has driven society to explore different sources of energy, seeking to achieve sustainability. In this sense, we designed a thermal machine whose energy […]

Antônio O. de Souza, Valdecir Biondo, Paulo Willian C. Sarvezuk, Jusmar V. Bellini, Pedro R. Anizelli, Dimas A. M. Zaia e Andrea Paesano Jr.

Química Nova – Volume: 37; Number: 7; Pages: 1132-11370; DOI: 10.5935/0100-4042.20140181

Iron(III) acetate was synthesized by the reflux method using iron enriched in the 57Fe isotope and the compound processed by freeze-drying. The as-synthesized […]

Luis J. Borrero-González, Luiz A. Oliveira Nunes, Jaqueline L. Carmo, Francine B. G. Astrath e Mauro L. Baesso

Journal of Luminescence – Volume: 145; Pages: 615–619; DOI: 10.1016/j.jlumin.2013.08.036

We report on spectroscopic studies and downconversion luminescence in OH−-free Pr3+–Yb3+ co-doped low-silica calcium aluminosilicate glasses (LSCAS). The dependencies of the visible to near-infrared emissions, photoacoustic signals, luminescence decay times […]

Samiksha Verma, Puneet Sharma, O. P. Pandey, Andrea Paesano Jr. e An-Cheng Sun

IEEE TRANSACTIONS ON MAGNETICS – Volume: 50; Number: 1; Page: 2101004; DOI: 10.1109/TMAG.2013.2278373

M-type Barium hexaferrite (BaFe12O19) with substitution of Ba2+ by rare earth metal La3+ were prepared by solid state synthesis method from as-prepared powder of barium monoferrite (Ba1-xLaxFe2O4) (x=0.0, 0.1 and 0.2). The structural and magnetic properties of Ba1-xLaxFe12O19 were investigated […]

Oscar R. Santos, Wladimir S. Braga, Danilo D. Luders, Newller M. Kimura, Manuel Simões e Antonio J. Palangana

Journal of Molecular Liquids – Volume: 197; Pages: 120–123; DOI: 10.1016/j.molliq.2014.05.005

The calamitic nematic (NC)–biaxial nematic (NB)–discotic nematic (ND) phase transitions are studied in a potassium laurate-decanol-potassium sulfate and water mixture by optical conoscopy. The NC−(ND+) phase is uniaxially negative (positive) […]