51. Pulse duration of seeded free-electron lasersPaola Finetti, Hauke Höppner, Enrico Allaria, Carlo Callegari, Flavio Capotondi, Paolo Cinquegrana, Marcello Coreno, Riccardo Cucini, Miltcho Bojanov Danailov, Alexander Demidovich, Giovanni De Ninno, Primož Rebernik Ribič, 2017, original scientific article Keywords: free-electron lasers, harmonic generation, pulse duration Published in RUNG: 14.01.2020; Views: 3079; Downloads: 13 Link to full text |
52. Chirped pulse amplification in an extreme-ultraviolet free-electron laserDavid Gauthier, Enrico Allaria, Marcello Coreno, Ivan Cudin, Hugo Dacasa, Miltcho Bojanov Danailov, Alexander Demidovich, S. Di Mitri, B. Diviacco, Eugenio Ferrari, Primož Rebernik Ribič, Giovanni De Ninno, 2016, original scientific article Keywords: free-electron lasers, chirped pulse amplification, femtosecond Published in RUNG: 13.01.2020; Views: 3272; Downloads: 13 Link to full text |
53. Stability by linear approximation for time scale dynamical systemsSergey Kryzhevich, Alexander Nazarov, 2017, original scientific article Abstract: We study systems on time scales that are generalizations of classical differential or difference equations and appear in numerical methods. In this paper we consider linear systems and their small nonlinear perturbations. In terms of time scales and of eigenvalues of matrices we formulate conditions, sufficient for stability by linear approximation. For non-periodic time scales we use techniques of central upper Lyapunov exponents (a common tool of the theory of linear ODEs) to study stability of solutions. Also, time scale versions of the famous Chetaev’s theorem on conditional instability are proved. In a nutshell, we have developed a completely new technique in order to demonstrate that methods of non-autonomous linear ODE theory may work for time-scale dynamics. Keywords: Time scale system, Linearization, Lyapunov functions, Millionschikov rotations, Stability Published in RUNG: 15.03.2017; Views: 4042; Downloads: 160 Link to file |
54. eastweetswest : :::::::: a performance process reflecting the state of unityPeter Purg, 2016, artistic work Abstract: "After more than a quarter century thoughts and actions were shared, reflecting the state of unity. Keywords: " The Twitter account of grüntaler9 invited everyone to tweet/comment upon the topic of East & West. The performer arranged selected feeds, printed out on paper and cut to tile size onto the Black & White floor tiles of the space.
Performative (re)actions emerged by performer and participants, online and on site, critical or speculative, mythical or manipulative... Live feeds were used primarily, recycling material was an option. Text was used primarily, pictures are an option.
After more than a quarter century thoughts and actions were shared, reflecting the state of unity."
Live Performance 12 – 14h at grüntaler9, berlin, Germany
Tweets and responses @ :://twitter.com/Gruentaler9 Published in RUNG: 16.11.2016; Views: 6823; Downloads: 0 |
55. The measurement of the energy spectrum of cosmic rays above 3 [times] 10 [sup] 17 eV with the Pierre Auger ObservatoryAlexander Schulz, Andrej Filipčič, Thomas Paul, Samo Stanič, Darko Veberič, Danilo Zavrtanik, Marko Zavrtanik, 2013, published scientific conference contribution Keywords: Observatorij Pierre Auger, kozmični žarki, spekter Published in RUNG: 15.10.2013; Views: 5221; Downloads: 25 Link to full text |