Perseu A. Santoro, Ervin K. Lenzi, Luiz R. Evangelista, F. Ciuchi, A. Mazzulla e N. Scaramuzza

MOLECULAR CRYSTALS AND LIQUID CRYSTALS – Volume: 576; Issue: 1; Pages: 23-31; DOI: 10.1080/15421406.2013.789423

The electrical impedance response of six nematic liquid crystals samples is analyzed by means of an extension of the Poisson-Nernst-Planck diffusional model. This formulation includes fractional derivatives […]

Haroldo V. Ribeiro, Renato R. Guimarães, Rodolfo T. Souza, Hatsumi Mukai, Paulo R. Garcia Fernandes, Ervin K. Lenzi, e Renio S. Mendes

PHYSICAL REVIEW E – Volume: 87; Issue: 5; Article Number: 054501; DOI: 10.1103/PhysRevE.87.054501

We report on the dynamical behavior of defects of strength s = ± 1/2 in a lyotropic liquid crystal during the annihilation […]

Jun Shen, Jianqin Zhou, Caikang Gu, Stuart Neill, Kirk H. Michaelian, Craig Fairbridge, Nelson G. Castelli Astrath e Mauro L. Baesso

REVIEW OF SCIENTIFIC INSTRUMENTS – Volume: 84; Pages: 124902; DOI: 10.1063/1.4846255

A simplified theoretical model was developed for the thermal-wave cavity (TWC) technique in this study. This model takes thermal radiation into account and can be […]

Taiana G. Moretti Bonadio, Francielle Sato, Antonio Medina Neto, Wilson R. Weinand, Mauro L. Baesso e Walter M. Lima

JOURNAL OF APPLIED PHYSICS – Volume: 113; Issue: 22; Article Number: 223505; DOI: 10.1063/1.4809653

In this work, we investigate the bioactivity and structural properties of nanostructured bulkcomposites that are composed of Nb 2O5 and natural hydroxyapatite (HAp) and […]

Fernando C. Messias Freire, Newller M. Kimura, Danilo D. Luders, Antonio J. Palangana e Manuel Simões

PHYSICAL REVIEW E – Volume: 88; Issue: 6; Article Number: 64502; DOI: 10.1103/PhysRevE.88.064502

In this work we will use digital images to compute the entropy dependence on temperature of a nematic lyotropic sample. The set of images comprehend the entire temperature […]

Rafael S. Zola, Hossein Nemati, Young-Cheol Yang, Deng-Ke Yang, Chao-Chiun Liang, Kung-Lung Cheng, Frank Shiu e Chen-Chu Tsai

JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY – Volume: 21; Issue: 1-3; Pages: 22-28; DOI: 10.1002/jsid.142

In this article, we report our study of a dual mode reflective cholesteric display, which works in the traditional bistable mode as well […]

Luiz G. Davanse Silveira, Gustavo S. Dias, Luiz F. Cótica, José A. Eiras, Ducinei Garcia, José A. Sampaio, Fabiano Yokaichiya e Ivair A. Santos

JOURNAL OF PHYSICS-CONDENSED MATTER – Volume: 25; Issue: 47; Article Number: 475401; DOI: 10.1088/0953-8984/25/47/475401

Temperature-dependent and frequency-dependent dielectric investigations have been performed in TbMnO3 polycrystals sintered in either oxidative or reductive atmospheres. The […]

Wladimir S. Braga, Oscar R. Santos, Danilo D. Luders, Anderson R. Sampaio, Newller M. Kimura, Manuel Simões, Aantonio J. Palangana

JOURNAL OF MOLECULAR LIQUIDS – Volume: 187; Pages: 20-23; DOI: 10.1016/j.molliq.2013.05.002

The discotic nematic (ND)–biaxial nematic (NB)–calamitic nematic (NC) phase transitions are studied in a potassium laurate–decanol–D2O mixture by optical conoscopy. The ND+ (NC−) phase is uniaxial […]