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N. Cella

Researcher at Rio de Janeiro State University

Publications -  33
Citations -  686

N. Cella is an academic researcher from Rio de Janeiro State University. The author has contributed to research in topics: Photoacoustic spectroscopy & Photoluminescence. The author has an hindex of 14, co-authored 31 publications receiving 644 citations. Previous affiliations of N. Cella include Instituto Politécnico Nacional & State University of Campinas.

Papers
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Journal ArticleDOI

Open photoacoustic cell spectroscopy

M. V. Marquezini, +4 more
- 01 Apr 1991 - 
TL;DR: In this article, the possibility of using a minimal volume photoacoustic cell to perform spectroscopy of samples is discussed, which allows one to obtain both absorption and transmission spectra with minimal experimental arrangement and cell machining requirements.
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Photoacoustic spectroscopy as a tool for determination of food dyes: Comparison with first derivative spectrophotometry

T.M. Coelho, +6 more
- 15 Apr 2010 - 
TL;DR: The PAS technique can be applied to the determination of the selected dyes in commercial food products, with some advantages: it reduces the number of analysis steps, it is a "green" method with less chemical waste, a minimal sample amount is needed, and it is non-destructive.
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Photoacoustic measurement of thermal diffusivity of polymer foils

Nélia Ferreira Leite, +3 more
- 15 Apr 1987 - 
TL;DR: In this paper, the phase lag between the front and rear illuminations of polymer foils was used to measure the thermal diffusivity of the photoacoustic signal in a limited frequency range from 6 to 12 Hz.
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Photoacoustic characterization of chalcogenide glasses: Thermal diffusivity of Ge x Te 1 − x

J. C. de Lima, +5 more
- 01 Dec 1992 - 
TL;DR: The photoacoustic technique is used to investigate the thermal diffusivity of Ge x Te 1-x glasses as a function of composition and the observed dependence on the composition is explained on the basis of the chemically ordered network model.
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Photosynthetic O2 evolution in maize inbreds and their hybrids can be differentiated by open photoacoustic cell technique

William Jose da Silva, +8 more
- 01 Jan 1995 - 
TL;DR: The results indicate that photosynthetic efficiencies of inbreds and hybrids can be differentiated by photoacoustic measurements of oxygen evolution, providing a parameter that might prove useful in evaluating plant genotypes.