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1992
Cerdeira, Orestes J. "On the Multi-Depot Vehicle Routing Problem." Operations Research '91. Springer Science $\mathplus$ Business Media, 1992. 144-147. Abstract
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Dias, C., and D. K. Dasgupta. "PIEZOELECTRIC PROPERTIES OF 0-3 CERAMIC POLAR POLYMER COMPOSITES." Symp on Smart Materials Fabrication and Materials for Micro-Electro-Mechanical Systems. Vol. 276. Materials Research Society Symposium Proceedings, 276. PITTSBURGH: Materials Research Soc, 1992. 25-29. Abstract
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Lanca, M. C., I. Franco, J. M. Mendes, and Ieee SIMULATION OF THE FERROELECTRIC SWITCHING OF PVDF AND ITS COPOLYMERS., 1992. AbstractWebsite
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Lanca, M. C., I. Franco, J. M. Mendes, and Ieee SIMULATION OF THE FERROELECTRIC SWITCHING OF PVDF AND ITS COPOLYMERS., 1992. AbstractWebsite
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1991
Lampreia, J., G. Fauque, N. SPEICH, C. DAHL, I. Moura, HG TRUPER, and JJG Moura. "SPECTROSCOPIC STUDIES ON APS REDUCTASE ISOLATED FROM THE HYPERTHERMOPHILIC SULFATE-REDUCING ARCHAEBACTERIUM ARCHAEGLOBUS-FULGIDUS." BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS. 181 (1991): 342-347.
Alferes, {José Júlio Alves}. "CONTRADICTION REMOVAL WITHIN WELL FOUNDED SEMANTICS." MIT Press. 1991. 105-119. Abstract
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Alferes, {José Júlio Alves}. "COUNTERFACTUAL REASONING BASED ON REVISING ASSUMPTIONS." MIT Press. 1991. 566-577. Abstract
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Alferes, {José Júlio Alves}. "THE EXTENDED STABLE MODELS OF CONTRADICTION REMOVAL SEMANTICS." Lecture Notes in Artificial Intelligence. Vol. 541. 1991. 105-119. Abstract
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Alferes, {José Júlio Alves}. "HYPOTHETICAL REASONING WITH WELL FOUNDED SEMANTICS." IOS Press. 1991. 289-300. Abstract
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Alferes, {José Júlio Alves}. "NONMONOTONIC REASONING WITH WELL FOUNDED SEMANTICS." MIT Press. 1991. 475-489. Abstract
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Alferes, {José Júlio Alves}. "A PRACTICAL INTRODUCTION TO WELL FOUNDED SEMANTICS." IOS Press. 1991. 277-288. Abstract
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Moniz, António B., and Ilona Kovács. "New Production Technologies, Youth’s Qualification and Attitudes: The Portuguese situation in the industrial sector." European Youth and New Technologies - A comparative analysis of 12 european countries. Ed. Ruza Furst-Dilic. Vienna: European Coordination Centre for Research and Documentation in Social Sciences, 1991. 137-155.
Phillips, A. M. M. M., and T. A. Modro. "Phosphonic systems. 2. Functional group and skeleton modifications in diethyl esters of 2 propenyl (and 2 pentenyl) phosphonic acids." Phosphorus, Sulfur and Silicon. 55 (1991): 41.
Phillips, A. M. M. M., and T. A. Modro. "Phosphonic Systems. Part 3.' Diethyl Prop-2-enylphosphonate, a New and Versatile Substrate in Carbon-Carbon Bond Formation." J. Chem. Soc. Perkin Trans. 1 (1991): 1875-1879.
Moniz, António B. "Racionalização industrial: novos desafios a sociologia industrial contemporânea." Arquipélago/Ciências Sociais.6 (1991): 17-40. Abstractarq1991_cs_n6_pp17-40.pdfWebsite

Industrial rationalization represents a decisive moment of the strategic development of business activities in the last few years. In this sense, it is also a theoretical challenge to Industrial Sociology, since the dimensions, both technical and social, of that rationalization can be underlined. The analysis of the better-known different patterns of rationalization allows us a further knowledge of the main strategies for industrial modernization. Accordingly, this paper presents some results deriving from the application of those strategies. Finally, this paper gives a particular attention to the more recent tendencies of development of integrated systems of production, particularly of those focusing upon the social and organizational aspects of industrial rationalization.

Vieira, M., Martins Fortunato Soares Guimarães R. E. F. "A-Si:H ambipolar diffusion length and effective lifetime measured by flying spot (FST) and spectral photovoltage (SPT) techniques." Journal of Non-Crystalline Solids. 137-138 (1991): 479-482. AbstractWebsite

On this paper we report the physical model that supports the theory of the Flying Spot Technique (FST). Through this technique it is possible to determine separately the ambipolar diffusion length (L*) and the effective lifetime (τ*) of the generated carriers, using either Schottky diodes or quasi-ohmic sandwich structures. We also report a new static method based on the Spectral Photovoltage (SPT) that allows to infer the ambipolar diffusion length and to estimate the surface recombination velocity. © 1991 Elsevier Science Publishers B.V. All rights reserved.

Freitas, J. C. "As novas tecnologias da informação no ensino/aprendizagem da Biologia." T. Oliveira (1991). Didáctica da Biologia (1991). Abstract
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Sixou, P., JM Gilli, A. Ten Bosch, F. Fried, P. Maissa, L. Varichon, and M. H. Godinho. "Cholesteric mesophases." Physica Scripta. 1991.T35 (1991): 47. Abstract
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Zeman, M., I. Ferreira, MJ Geerts, and JW Metselaar. "The effect of hydrogen dilution on glow discharge a-SiGe: H alloys." Solar energy materials. 21.4 (1991): 255-265. Abstract
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Zeman, M., G. Tao, MJ Geerts, JW Metselaar, and I. Ferreira. "The Effect of Hydrogen on the Plasma Deposition of a-SiGe: H Thin Films for Tandem Solar Cell Applications." Tenth EC Photovoltaic Solar Energy Conference. Springer Netherlands, 1991. 946-949. Abstract
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Dias, C., and D. K. Dasgupta. "ELECTROACTIVE AND DIELECTRIC-PROPERTIES OF CORONA AND THERMALLY POLED POLYMER-CERAMIC COMPOSITES." 7th International Symposium on Electrets ( Ise 7 ) : Proceedings (1991): 495-500. AbstractWebsite
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Martins, R., I. Ferreira, N. Carvalho, and L. Guimarães. "Engineering of plasma deposition systems used for producing large area a-Si: H devices." Journal of non-crystalline solids. 137 (1991): 757-760. Abstract
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Martins, R., Ferreira Carvalho Guimarães I. N. L. "Engineering of plasma deposition systems used for producing large area a-Si:H devices." Journal of Non-Crystalline Solids. 137-138 (1991): 757-760. AbstractWebsite

One of the main problems in producing large area amorphous silicon devices concerns films uniformity. In this paper we present data concerning the role of reactor geometry and design and on the film performances as well as the problems related to mechanical mismatches in scaling up the reactor size. © 1991 Elsevier Science Publishers B.V. All rights reserved.

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