Mirage Effect
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Princípio e utilização da técnica de efeito miragem de concentração
The aim of this work is to present the theoretical and experimental aspects of the mirage effect technique. We are especially interested in the concentration mirage effect, which is a powerful tool in the study of electrochemical reactions that produce ionic movements close to electrodes and to get some fundamental information on mass transport and charge tr
Química Nova. Publicado em: 2006-10
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2. Efeito anomalo nas medidas de lente termica em vidros com pontos quanticos de CdTe / Anomalous effect in thermal lens measurements in CdTe quantum dot doped glasses
Semiconductor doped glasses are of great interest because of their non-linear optical properties and short response time due to quantum confinement. In this work, we used the thermal lens technique to determine the thermal diffusivity (a ) and the behavior of the temperature coefficient of the refractive index (dn/dT ) in CdTe doped borosilicate glasses trea
Publicado em: 2005
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3. Optimization of protocols for in vitro propagation in gerbera (Gerbera jamesonii) / Otimização de protocolos para a propagação in vitro de gérbera (Gerbera jamesonii)
Gerberas are cut flowers with large color diversity and good durability. The use of growth regulators on in vitro propagation is related to the capacity to induce proliferation of sprouts and differentiation of roots. However, citokinins in excess can induce the formation of abnormal plant, with reduced acclimatization potential. The mineral and organic comp
Publicado em: 2005
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4. Internationalization strategies and mirroring structures in north-american advertising agencies: a multiple case study in Brazil / Estratégia de internacionalização e o espelhamentode estruturas em agências norte-americanas de propaganda: um estudo de casos no Brasil
Globalization is an extensively studied phenomenon, in its economic, social, and cultural dimensions. From the standpoint of Administration, it is configured as a strategical action of companies in search of better productive competitiveness and broader consumer markets. The advertising industry, caracterized as a corporate service backing up the value chain
Publicado em: 2005
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5. The effect of the ferrofluid magnetic particle concentration on the thermal diffusivity
Thermal diffusivity results obtained with the collinear mirage technique, are reported for different concentrations surfacted ferrofluid and for a set of acid ferrofluids with variable pH values. The collinear mirage technique was used because the materials are semitransparent and have low thermal diffusivities. The results show that, as the ferrofluid magne
Braz. J. Phys.. Publicado em: 2001-09
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6. New applications of photothermal techniques for studying interfaces. / Novas aplicações de técnicas fototérmicas para o estudo de interfaces.
This work presents the development of new instrumentations based on photothermal phenomena to study solid-liquid and liquid-gas interfaces, including in the latter the effect of surfactants. The work is divided into chapters, each one focusing on the development and/or application of a new technique. Chapter I presents an introduction to photothermal phenome
Publicado em: 2001