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2001
Nunes, P., Marques Fortunato Martins A. E. R. "Performances presented by large area ZnO thin films deposited by spray pyrolysis." Materials Research Society Symposium Proceedings. Vol. 685. 2001. 152-157. Abstract

In this work we present the results of a study on the uniformity of ZnO thin films produced by spray pyrolysis. The properties of the thin films depend essentially on the carrier gas pressure and gas flow used. The best films for optoelectronic applications were obtained with a carrier gas pressure of 2 bar and solution flow of 37 ml/min. The velocity of the nozzle affects essentially the uniformity of the ZnO thin films. However this important characteristic of the large area thin films is independent of the nature (doped and undoped) of the thin film and exhibits a high dependence on the variation of the temperature along the substrate. © 2001 Materials Research Society.

Fortunato, E., D. Brida, I. Ferreira, H. Águas, P. Nunes, and R. Martins. "Production and characterization of large area flexible thin film position sensitive detectors." Thin Solid Films. 383.1 (2001): 310-313. Abstract
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Fortunato, E., D. Brida, I. Ferreira, H. Águas, P. Nunes, and R. Martins. "Production and characterization of large area flexible thin film position sensitive detectors." Thin Solid Films. 383 (2001): 310-313. Abstract
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Nunes, P., Fortunato Martins E. R. "Properties of ZnO thin films deposited by spray pyrolysis and magnetron sputtering." Materials Research Society Symposium Proceedings. Vol. 685. 2001. 128-133. Abstract

In this work we present a study of the properties of ZnO thin films produced by spray pyrolysis and r.f. magnetron sputtering. Before the annealing treatment the properties of the films are very similar, which means that the films produced by both techniques could be used on optoelectronic devices. However spray pyrolysis is a more simple and cheap technique than sputtering, but with this last technique the thin films exhibit a higher uniformity. © 2001 Materials Research Society.

Nunes, P., Fortunato Vilarinho Martins E. P. R. "Properties presented by tin oxide thin films deposited by spray pyrolysis." Solid State Phenomena. 80-81 (2001): 139-144. AbstractWebsite

Thin films of SnO2 deposited by spray pyrolysis as a function of temperature and the carrier gas flow have been produced, in order to evaluate the adequate deposition parameters for application in optoelectronic devices. The characterisation was centred mainly onto the structural, electrical and optical properties of the films. The obtained results showed that the films produced at 450°C and a gas flow of 101/min (as deposited) present an average transmittance (visible spectrum) of 90% and a bulk resistivity of 3.2×10-3 Ωcm.

Nunes, P., Fortunato Martins E. R. "Thin film combustible gas sensors based on zinc oxide." Materials Research Society Symposium - Proceedings. Vol. 666. 2001. F521-F526. Abstract

Sensitivity tests to reductive gases such as methane, hydrogen and ethane were performed on zinc oxide (ZnO) thin films. The highest value of sensitivity was obtained for the film with a high electrical resistivity and a low thickness. The variation of the operating temperature of the film leads to a significant change in the sensitivity of the sensor with an ideal operating temperature dependence of the gas used. The sensitivity of the ZnO thin films changes linear with the increase of the gas concentration. However these films seem to be more appropriated for the detection of hydrogen following by methane and than for ethane since the value of sensitivity obtained are higher and its variation with the gas concentration more pronounced.

Fortunato, Elvira, Patrícia Nunes, António Marques, Daniel Costa, Hugo Águas, Isabel Ferreira, Maria EV Costa, and Rodrigo Martins. "Thin Film Metal Oxide Semiconductors Deposited on Polymeric Substrates." MRS Proceedings. 685.1 (2001). Abstract
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Fortunato, Elvira, Patr{\'ıcia Nunes, António Marques, Daniel Costa, Hugo Águas, Isabel Ferreira, Maria EV Costa, and Rodrigo Martins. "Thin Film Metal Oxide Semiconductors Deposited on Polymeric Substrates." MRS Proceedings. Vol. 685. Cambridge University Press, 2001. D5-12. Abstract
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Fortunato, Elvira, Patrícia Nunes, António Marques, Daniel Costa, Hugo Águas, Isabel Ferreira, Maria EV Costa, and Rodrigo Martins. "Zinc oxide thin films deposited by rf magnetron sputtering on mylar substrates at room temperature." MRS Proceedings. 685 (2001). Abstract
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Fortunato, Elvira, Patr{\'ıcia Nunes, António Marques, Daniel Costa, Hugo Águas, Isabel Ferreira, Maria EV Costa, and Rodrigo Martins. "Zinc oxide thin films deposited by rf magnetron sputtering on mylar substrates at room temperature." MRS Proceedings. Vol. 685. Cambridge University Press, 2001. D5-10. Abstract
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2000
Nunes, Isabel L. Avaliação ergonómica de postos de trabalho utilizando o sistema ERGO_X. Semana Europeia 2000 "Não vires as costas às perturbações músculo-esqueléticas". Centro Cultural Belém - Lisboa, 2000. Abstract
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Nunes, Isabel L., and Rita A. Ribeiro Fuzzy versus classical methods comparison in ergonomics evaluations. Ergonomia na Gestão pela Qualidade. Costa da Caparica-Portugal, 2000. Abstract
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Nunes, Isabel L., and Rita A. Ribeiro The ERGO_X workstation analysis compared with other ergonomics tools. XIV Triennial Congress of the International Ergonomics Association: Ergonomics for the New Millennium. San Diego-USA: Human factors and Ergonomics Society, 2000. Abstract
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Duarte, C., A. Aguiar-Ricardo, N. Ribeiro, T. Casimiro, and M. Nunes Da Ponte. "Correlation of vapor-liquid equilibrium for carbon dioxide + ethanol + water at temperatures from 35 to 70°C." Separation Science and Technology. 35.14 (2000): 2187-2201. AbstractWebsite
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Ribeiro, N., T. Casimiro, C. Duarte, M. Nunes Da Ponte, A. Aguiar-Ricardo, and M. Poliakoff. "Vapor-Liquid Equilibrium and Critical Line of the CO2 + Xe System. Critical Behavior of CO2 + Xe versus CO2 + n-Alkanes." Journal of Physical Chemistry B. 104.4 (2000): 791-795. AbstractWebsite
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Cidade, M. T., C. R. Leal, M. H. Godinho, and Patrick Navard. "Temperature dependence of the rheological properties of acetoxypropylcellulose in the thermotropic chiral nematic phase." 348.1 (2000): 27-39. Abstract
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Nunes, Isabel L., Rita A. Ribeiro, and Virgílio A. Machado Knowledge Base of the Ergonomics Expert System ERGO_X. World Automation Conference-2000. Maui-Hawaii, 2000. Abstract
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Neves-Silva, R., P. O. Shirley, J. M. Lemos, and A. Gonçalves. "Adaptive regulation of superheated steam temperature." IFAC - Control Eng. Practice. 8 (2000): 1405-1415.
Nunes, Isabel L., Rita A. Ribeiro, and Virgílio A. Machado Application of Fuzzy Sets Theory to the Evaluation of Office Chairs. Eds. Laerte Sznelwar, and Leila Zidan. O Trabalho Humano com Sistemas Informatizados no Sector de Serviços. S. Paulo-Brasil: Ed. Plêiade, 2000. Abstract
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Fortunato, Elvira, Donatello Brida, Isabel M. M. Ferreira, HMB Åguas, Patrícia Nunes, Ana Cabrita, Franco Giuliani, Yuri Nunes, and Manuel JP Maneira. "Large Area Flexible Amorphous Silicon Position Sensitive Detectors." MRS Proceedings. 609.1 (2000). Abstract
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Fortunato, E., P. Teodoro, V. Silva, I. Ferreira, Y. Nunes, N. Guimarães, F. Soares, F. Giuliani, G. Popovic, and W. Brener. "Performances of an optical ruler based on one-dimensional hydrogenated amorphous Si position-sensitive detectors produced using different metal contacts." Philosophical Magazine B. 80.4 (2000): 765-774. Abstract
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Cidade, M. T., C. R. Leal, M. H. Godinho, and Patrick Navard. "Temperature dependence of the rheological properties of acetoxypropylcellulose in the thermotropic chiral nematic phase." Molecular Crystals and Liquid Crystals. 348.1 (2000): 27-39. Abstract
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Aguas, Hugo, Ana Cabrita, Pedro Tonello, Patricia Nunes, Elvira Fortunato, and Rodrigo Martins. "Two Step Process for the Growth of a Thin Layer of Silicon Dioxide for Tunneling Effect Applications." MRS Proceedings. Vol. 619. Cambridge University Press, 2000. 179. Abstract
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1999
Nunes, Isabel L. ERGO_X - An ergonomic expert system. Dep Industrial Engineering and Management Systems, Univ Central Florida, Orlando - USA, 1999. Abstract
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Nunes, Isabel L., Rita A. Ribeiro, and Virgílio A. Machado Abordagem à análise ergonómica de postos de trabalho através do sistema pericial difuso ERGO_X. [Workstation Ergonomic Analysis approach using the Fuzzy Expert System ERGO_X]. 2º Conferência Internacional sobre Ergonomia, Segurança e Higiene Ocupacionais. [2nd International Conference on Ergonomics, Occupational Safety and Hygiene]. Braga, Portugal, 1999. Abstract
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