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Your search keyword '"J. P. Bolivar"' showing total 5 results
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5 results on '"J. P. Bolivar"'

1. Ground-based and OMI-TROPOMI NO

Author

J A, Adame, I, Gutierrez-Alvarez, J P, Bolivar, and M, Yela

Subjects
Europe, Air Pollutants, Ozone, Portugal, Nitrogen Dioxide, Seasons, Environmental Monitoring
Abstract

Eleven years, January 2008 to June 2019, of hourly nitrogen dioxide (NO

Published
2020

3. Sub-barrier Fusion and Breakup of Light Halo Nuclei

Author

I. Martel, R. Wolski, L. Standyło, L. Acosta, J. L. Aguado, C. Angulo, R. Berjillos, J. P. Bolivar, J. A. Dueñas, M. S. Golovkov, T. Keutgen, M. Mazzocco, A. M. Sánchez-Benítez, C. Signorini, M. Romoli, K. Rusek, Paraskevi Demetriou, Rauno Julin, and Sotirios Harissopulos

Subjects
Nuclear reaction, Physics, Nuclear physics, Fusion, Nucleosynthesis, law, Cyclotron, Alpha decay, Halo, Isotopes of helium, Radioactive decay, law.invention
Abstract

In this work we present new data for the sub‐barrier fusion of the system 6He+206Pb obtained in the Centre de Recherches du Cyclotron (UCL), in Louvain‐la‐Neuve, Belgium. The preliminary results suggest the absence of fusion enhancement at sub‐barrier energies.

Published
2011

4. Characterization of Porous Materials as Radon Source and its Radiological Implications

Author

I. López-Coto, J. P. Bolivar, J. L. Mas, R. García-Tenorio, Anselmo Salles Paschoa, and Friedrich Steinhäusler

Subjects
Materials science, chemistry, Radiological weapon, Nuclear engineering, Radiochemistry, chemistry.chemical_element, Radon, Porous medium, Characterization (materials science)
Abstract

In this work, a magnitude is proposed in order to compare the potential radiological risk due to radon exposition generated by different materials, and a method based in the 222Rn accumulation technique is presented for its determination. The obtained results indicate that the proposed magnitude and their corresponding measurement methodology are useful in order to take decisions about the management of different kinds of porous materials.

Published
2008

5. Use of the 'red gypsum' industrial waste as substitute of natural gypsum for commercial cements manufacturing

Author

M. J. Gázquez, J. P. Bolívar, F. Vaca, R. García-Tenorio, and A. Mena-Nieto

Subjects
waste, valorisation, titanium dioxide, red gypsum and norm industry, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

The main objective of this research has been the valorisation of a waste from the TiO2 production process (sulphate method), called red gypsum, in the production of cements. This waste is mainly formed by di-hydrate calcium sulphate and iron hydroxides. To cover this objective it has been necessary to perform the physico-chemical characterisation of the red gypsum as well as the main components in the production of cements and of the new cements generated. Moreover, for the red gypsum, has been analyzed its radioactive content because it is generated in a NORM (Naturally Occurring Radioactive Materials) industry. Finally, the most important properties of the obtained cements with different proportions of red gypsum in their composition have been studied by comparing them with the standard ones obtained in a Portland cement. Lastly, we have demonstrated that the new cements fulfil all the quality tests imposed by the European legislation.

Published
2012
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