11. User operation of sub-picosecond thz coherent transition radiation parasitic to a VUV FELS. Di Mitri, N. Adhlakha, Enrico Allaria, Laura Badano, Giovanni De Ninno, P. Di Pietro, G. Gaio, Luca Giannessi, G. Penco, A. Perucchi, Primož Rebernik Ribič, 2019, published scientific conference contribution Keywords: free-electron lasers, coherent transition radiation, electron beam manipulation Published in RUNG: 15.01.2020; Views: 3220; Downloads: 86 Link to full text This document has many files! More... |
12. First lasing of a free electron laser in the soft x-ray spectral range with echo enabled harmonic generationEnrico Allaria, Alessandro Abrami, Laura Badano, Maurizio Bossi, Flavio Capotondi, Davide Castronovo, Marco Cautero, Paolo Cinquegrana, Ivan Cudin, M. B. Danailov, Primož Rebernik Ribič, Giovanni De Ninno, 2019, published scientific conference contribution Keywords: free-electron lasers, harmonic generation Published in RUNG: 15.01.2020; Views: 3141; Downloads: 91 Link to full text |
13. Beyond the limits of 1D coherent synchrotron radiationA. D. Brynes, P. Smorenburg, I. Akkermans, Enrico Allaria, Laura Badano, S. Brussaard, M. B. Danailov, Alexander Demidovich, Giovanni De Ninno, David Gauthier, Primož Rebernik Ribič, 2018, original scientific article Keywords: coherent synchrotron radiation, free electron lasers, accelerators Published in RUNG: 14.01.2020; Views: 3422; Downloads: 79 Link to full text |
14. Generation and applications of extreme-ultraviolet vorticesCarlos Hernández-García, Jorge Vieira, Jose T. Mendonça, Laura Rego, Julio San Román, Luis Plaja, Primož Rebernik Ribič, David Gauthier, Antonio Picón, 2017, original scientific article Keywords: XUV/X-ray vortices, orbital angular momentum of photons, high-harmonic generation, free-electron lasers, plasma physics Published in RUNG: 13.01.2020; Views: 3375; Downloads: 14 Link to full text |
15. A Biogenerated Polymetallic Catalyst from Society's WastesOreste Piccolo, Stefano Paganelli, Petro Zanatta, Sebastiano Tieuli, Laura Sperni, Franco Baldi, Iztok Arčon, Michele Gallo, Katarina Vogel-Mikuš, 2019, original scientific article Abstract: Aims:Preparation of the new metals - polymeric composite, Met x-EPS (I), to be used as a green catalyst in water or in two-phase aqueous conditions.
Study Design:
Recovery and valorization of polymetallic
wastes to obtain directly new catalysts
using a microorganism to explore their application in removal of difficult and dangerous chemical
pollutants present in aqueous environment Keywords: Metals
-
polymeric composite, biogenerated polymetallic exopolysaccharide, new catalyst
from metallic wastes, hydrodechlorination
of PCBs in water Published in RUNG: 06.05.2019; Views: 3549; Downloads: 0 This document has many files! More... |
16. Alternative Recovery and Valorization of Metals from Exhausted Catalytic Converters in a New Smart Polymetallic CatalystSebastiano Tieuli, Franco Baldi, Iztok Arčon, Katarina Vogel-Mikuš, Michele Gallo, Laura Sperni, Oreste Piccolo, Stefano Paganelli, 2019, original scientific article Abstract: A new metals-polymeric composite, Metx-EPS (I), was prepared
to be used as catalyst in water or in two-phase aqueous
conditions. The metals source was an exhausted catalytic
converter that was grinded and treated with an acidic solution at room temperature. After filtration, the solution was concentrated, neutralized and added to a broth of Klebsiella oxytoca DSM 29614 to produce (I) where metals are embedded in a peculiar polysaccharide structure (EPS). The composite was easily recovered from the fermentation broth and purified. The process protocol was verified many times and was shown to be reproducible satisfactorily. The % recovery of metals, originally present in the converter, was good as determined by atomic
absorption. The morphology and the chemical state of main
metals in (I) were investigated by X-ray absorption spectroscopy
methods (XANES and EXAFS). No metallic alloy seems to
be evident. The catalytic activity and a possible synergic effect due to the presence of the different metals was valuated in the hydrogenation of some substrates, valuable precursors for theproduction of fine chemicals. Keywords: Biogenerated polymetallic exopolysaccharide, biphasic catalysis, hydrogenation, metals-polymeric
composite, new catalyst from metallic wastes, EXAFS, XANES Published in RUNG: 06.05.2019; Views: 3415; Downloads: 0 This document has many files! More... |
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18. Searching for supernovae in the multiply-imaged galaxies behind the gravitational telescope A370Tanja Petrushevska, Ariel Goobar, D. J. Lagattuta, R. Amanullah, Laura Hangard, S. Fabbro, C. Lindman, K. Paech, J. Richard, J.P. Kneib, 2017, original scientific article Abstract: Aims. Strong lensing by massive galaxy clusters can provide magnification of the flux and even multiple images of the galaxies that lie behind them. This phenomenon facilitates observations of high-redshift supernovae (SNe) that would otherwise remain undetected. Type Ia supernovae (SNe Ia) detections are of particular interest because of their standard brightness, since they can be used to improve either cluster lensing models or cosmological parameter measurements.
Methods. We present a ground-based, near-infrared search for lensed SNe behind the galaxy cluster Abell 370. Our survey was based on 15 epochs of J-band observations with the HAWK-I instrument on the Very Large Telescope (VLT). We use Hubble Space Telescope (HST) photometry to infer the global properties of the multiply-imaged galaxies. Using a recently published lensing model of Abell 370, we also present the predicted magnifications and time delays between the images.
Results. In our survey, we did not discover any live SNe from the 13 lensed galaxies with 47 multiple images behind Abell 370. This is consistent with the expectation of 0.09 ± 0.02 SNe calculated based on the measured star formation rate. We compare the expectations of discovering strongly lensed SNe in our survey and that performed with HST during the Hubble Frontier Fields (HFF) programme. We also show the expectations of search campaigns that can be conducted with future facilities, such as the James Webb Space Telescope (JWST) or the Wide-Field Infrared Survey Telescope (WFIRST). We show that the NIRCam instrument aboard the JWST will be sensitive to most SN multiple images in the strongly lensed galaxies and thus will be able to measure their time delays if observations are scheduled accordingly. Keywords: gravitational lensing: strong / supernovae: general / galaxies: clusters: individual: A 370 Published in RUNG: 28.06.2018; Views: 3753; Downloads: 177 Full text (4,14 MB) |
19. iPTF Discovery of Recent Type Ia SupernovaeLaura Hangard, Tanja Petrushevska, 2016, other component parts Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). Keywords: Supernovae, Transient Published in RUNG: 23.01.2018; Views: 3044; Downloads: 0 This document has many files! More... |
20. The ARCADE Raman Lidar System for the Cherenkov Telescope ArrayLaura Valore, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, published scientific conference contribution Keywords: Cherenkov Telescope Array, atmospheric monitoring, ARCADE Raman Lidar Published in RUNG: 16.02.2017; Views: 3770; Downloads: 184 Full text (1,24 MB) |