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2004
Ferreira, Isabel, Rui Igreja, Elvira Fortunato, and Rodrigo Martins. "Porous a/nc-Si: H films produced by HW-CVD as ethanol vapour detector and primary fuel cell." Sensors and Actuators B: Chemical. 103.1 (2004): 344-349. Abstract
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Dias, C. J., R. Igreja, R. Marat-Mendes, P. Inacio, J. N. Marat-Mendes, and D. K. Das-Gupta. "Recent advances in ceramic-polymer composite electrets." Ieee Transactions on Dielectrics and Electrical Insulation. 11 (2004): 35-40. Abstract
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Dias, C. J., R. Igreja, R. Marat-Mendes, P. Inacio, J. N. Marat-Mendes, and D. K. Das-Gupta. "Recent advances in ceramic-polymer composite electrets." Ieee Transactions on Dielectrics and Electrical Insulation. 11 (2004): 35-40. AbstractWebsite
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Martins, M. C., A. M. Costa, J. P. Santos, F. Parente, and P. Indelicato. "Relativistic calculation of two-electron one-photon and hypersatellite transition energies for 12<=Z<=30 elements." Journal of Physics B: Atomic and Molecular Physics. 37 (2004): 3785-3795. AbstractWebsite

Energies of two-electron one-photon transitions from initial double K-hole states were computed using the Dirac–Fock model. The transition energies of competing processes, the Ka hypersatellites, were also computed. The results are compared with experiment and to other theoretical calculations.

Pereira, L., H. Aguas, R. Igreja, R. M. S. Martins, N. Nedev, L. Raniero, E. Fortunato, and R. Martins. "Sputtering preparation of silicon nitride thin films for gate dielectric applications." Advanced Materials Forum Ii. Eds. R. Martins, E. Fortunato, I. Ferreira, and C. Dias. Vol. 455-456. Materials Science Forum, 455-456. 2004. 69-72. Abstract
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Pereira, Lu{\'ıs, Hugo Águas, Rui Igreja, Rui Miguel S. Martins, N. Nedev, Leandro Raniero, Elvira Fortunato, and Rodrigo Martins. "Sputtering preparation of silicon nitride thin films for gate dielectric applications." Materials Science Forum. Vol. 455. Trans Tech Publications, 2004. 69-72. Abstract
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Rodrigues, G. C., P. Indelicato, J. P. Santos, P. Patté, and F. Parente. "Systematic calculation of total atomic energies of ground state configurations." Atomic Data and Nuclear Data Tables. 86 (2004): 117-233. AbstractWebsite

We present a systematic study of atomic binding energies, in the Dirac–Fock approximation, for the Lithium (3 electrons) to the Dubnium (105 electrons) isoelectronic series. In each series we have considered all atomic numbers from the one corresponding to the neutral atom up to Z=118. We have obtained the ground state configurations for several heavy ions with charge larger than one.

Aguas, H, Pereira, L, Ferreira, and I. "{Effect of annealing on gold rectifying contacts in amorphous silicon}." 455-456 (2004): 96-99. AbstractWebsite
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Pereira, L, Aguas, H, Igreja, and R. "{Sputtering preparation of silicon nitride thin films for gate dielectric applications}." 455-456 (2004): 69-72. AbstractWebsite
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2003
Silva, M. A. G., C. Cismaşiu, and C. G. Chiorean. "Low velocity impact on laminates reinforced with {P}olyethylene and {A}ramidic fibres." Computational Methods in Engineering and Science. Proceedings of the 9th International Conference EPMESC IX. Eds. V. P. Iu, L. N. Lamas, Y. - P. Li, and K. M. Mok. Macao, China: A.A.Balkema Publishers, 2003. 843-849. Abstract

The present study reports low velocity impact tests on composite laminate plates reinforced either with Kevlar 29 or Dyneema. The tests are produced using a Rosand Precision Impact tester. The experimental results obtained for Kevlar 29 are simulated numerically. The deflection history and the peak of the impact force are compared with experimental data and used to calibrate the numerical model.

Lanca, M. C., C. J. Dias, D. K. Dasgupta, J. Marat-Mendes, and Ieee Ieee Comparative study of dielectric relaxation spectra of electrically and thermally aged low density polyethylene., 2003. AbstractWebsite

Low-density polyethylene (LDPE) films were thermally aged in a sodium chloride aqueous solution at constant temperature (thermal aging). Some of the samples were simultaneously immersed in solution and subjected to an electric AC field (electrical aging). The dielectric relaxation spectra at 30 degreesC in the range of 10(-5) Hz to 10(5) Hz were obtained for unaged and aged samples. For the low frequency (LF) region (10(-5) Hz to 10(-1) Hz) the time domain technique was used. A lock-in amplifier was used for the 10(-1) Hz to 10(1) Hz medium frequency (MF) region. While for the high frequency (HF), 10(-1) Hz to 10(5) Hz, RLC bridge measurements were performed. The main differences can be seen between electrically, thermally aged and unaged LDPE in the HF and LF regions. The LF peak is a broad peak related to localized space charge injection driven by the electric field. For electrically aged samples this peak increases in an earlier stage of electrical aging, decreasing afterwards. While in thermally aged samples the peak amplitude always increases with aging time. Finally the HF shows the beginning of a peak due to the gamma and beta transitions. This peak decreases with aging disappearing for the most aged samples.

Lanca, M. C., C. J. Dias, D. K. Dasgupta, J. Marat-Mendes, and Ieee Ieee Comparative study of dielectric relaxation spectra of electrically and thermally aged low density polyethylene., 2003. AbstractWebsite

Low-density polyethylene (LDPE) films were thermally aged in a sodium chloride aqueous solution at constant temperature (thermal aging). Some of the samples were simultaneously immersed in solution and subjected to an electric AC field (electrical aging). The dielectric relaxation spectra at 30 degreesC in the range of 10(-5) Hz to 10(5) Hz were obtained for unaged and aged samples. For the low frequency (LF) region (10(-5) Hz to 10(-1) Hz) the time domain technique was used. A lock-in amplifier was used for the 10(-1) Hz to 10(1) Hz medium frequency (MF) region. While for the high frequency (HF), 10(-1) Hz to 10(5) Hz, RLC bridge measurements were performed. The main differences can be seen between electrically, thermally aged and unaged LDPE in the HF and LF regions. The LF peak is a broad peak related to localized space charge injection driven by the electric field. For electrically aged samples this peak increases in an earlier stage of electrical aging, decreasing afterwards. While in thermally aged samples the peak amplitude always increases with aging time. Finally the HF shows the beginning of a peak due to the gamma and beta transitions. This peak decreases with aging disappearing for the most aged samples.

Lanca, M. C., C. J. Dias, D. K. Dasgupta, J. Marat-Mendes, and Ieee. "Comparative study of dielectric relaxation spectra of electrically and thermally aged low density polyethylene." 2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (2003): 161-164. Abstract
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Inacio, P., J. N. Marat-Mendes, and C. J. Dias. "Development of a biosensor based on a piezoelectric film." Ferroelectrics. 293 (2003): 351-356. AbstractWebsite
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Santos, J. P., F. Parente, S. Boucard, and P. Indelicato. "Energy levels of hydrogenlike kaonic atoms." Hyperfine Interactions. 146-147 (2003): 325. AbstractWebsite

Energies of the [( n ,l= n -1),1= n =20] and the [( n ,l= n -2),2= n =20] levels have been calculated for several hydrogenlike kaonic atoms throughout the periodic table, using the current world average kaon mass. Calculations were done in the framework of the Klein–Gordon equation, with finite nuclear size and all-order vacuum polarization corrections.

Dias, C. J., T. Egami, AL Greer, A. Inoue, and S. Ranganathan. "Relaxation mapping analysis with an hyperbolic heating rate." Supercooled Liquids, Glass Transition and Bulk Metallic Glasses. Vol. 754. 2003. 79-84. Abstract
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Indelicato, P., G. C. Rodrigues, J. P. Santos, P. Patté, J. P. Marques, and F. Parente. "Systematic calculation of Total Atomic Binding Energies." Hyperfine Interactions. 146-147 (2003): 115-119. Abstract
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Santos, J. P., M. C. Martins, A. M. Costa, P. Indelicato, and F. Parente. "Two-Electron One-Photon Transtion Relativistic Calculations for Low-Z Elements." Nuclear Instruments and Methods in Physics Research B. 205 (2003): 102-105. Abstract

Energies of two-electron one-photon transitions from initial double K-hole states and the transition energies of competing processes, namely K hyper-satellites, were computed for low-Z elements, using the multi-configuration Dirac–Fock method. Transition rates are also evaluated.

2002
E, Fortunato, Nunes P, Marques A, Costa D, Aguas H, Ferreira I, d CMEV, GODINHO MH, Almeida PL, Borges JP, and Martins R. "Influence of the strain on the electrical resistance of zinc oxide doped thin film deposited on polymer substrates." Advanced Engineering Materials. 4 (2002): 610-612. Abstract
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E, Fortunato, Nunes P, Marques A, Costa D, Aguas H, Ferreira I, Costa MEV, GODINHO MH, Almeida PL, Borges JP, and Martins R. "Transparent, conductive ZnO : Al thin film deposited on polymer substrates by RF magnetron sputtering." Surface & Coatings Technology. 151 (2002): 247-251. Abstract
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Raiola, F., P. Migliardi, G. Gyurky, M. Aliotta, A. Formicola, R. Bonetti, C. Broggini, L. Campajola, P. Corvisiero, H. Costantini, J. Cruz, A. D'Onofrio, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, G. Imbriani, C. Gustavino, A. P. Jesus, M. Junker, R. W. Kavanagh, P. G. P. Moroni, A. Ordine, JV Pinto, P. Prati, V. Roca, J. P. Ribeiro, D. Rogalla, C. Rolfs, M. Romano, F. Schumann, D. Schurmann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, and S. Zavatarelli. "Enhanced electron screening in d(d, p)t for deuterated Ta." European Physical Journal A. 13.3 (2002): 377-382. AbstractWebsite
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Casella, C., H. Costantini, A. Lemut, B. Limata, R. Bonetti, C. Broggini, L. Campajola, P. Corvisiero, J. Cruz, A. D'Onofrio, A. Formicola, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, C. Gustavino, G. Gyurky, G. Imbriani, A. P. Jesus, M. Junker, A. Ordine, JV Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, F. Scheumann, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H. P. Tratuvetter, S. Zavatarelli, and Luna Collaboration. "First measurement of the d(p, gamma)He-3 cross section down to the solar Gamow peak." Nuclear Physics A. 706.1-2 (2002): 203-216. AbstractWebsite
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Casella, C., H. Costantini, A. Lemut, B. Limata, D. Bemmerer, R. Bonetti, C. Broggini, L. Campajola, P. Cocconi, P. Corvisiero, J. Cruz, A. D'Onofrio, A. Formicola, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, C. Gustavino, G. Gyurky, A. Loiano, G. Imbriani, A. P. Jesus, M. Junker, P. Musico, A. Ordine, F. Parodi, M. Parolin, JV Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, A. Rottura, F. Schuemann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, A. Vomiero, and S. Zavatarelli. "A new setup for the underground study of capture reactions." Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment. 489.1-3 (2002): 160-169. AbstractWebsite
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Glavchev, I., K. Petrova, and M. Ivanova. "Determination of the coefficient of thermal expansion of epoxy composites." Polym. Test. 21.2 (2002): 177-179. DOI: 10.1016/S0142-9418(01)00066.
I. S. Brito, A. Moreira, and J. Araújo. "A requirements model to quality attributes." Workshop on Early Aspects: Aspect-Oriented Requirements Engineering and Architecture Design, na 1st International Conference on Aspect-Oriented Software Development (AOSD 2002) . Enschede, Holland: ACM, 2002. Abstract

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