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Zobrazují se záznamy 421-430 z 955
RADIOACTIVE UHECR ASTRONOMY: CORRELATING GAMMA ANISOTROPY AND NEUTRINO PEV EVENTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
UHECR (Ultra High Energy Cosmic Rays) were expected to be protons, to fly straight and to suffer of a GZK (opacity on CMB radiation) cut off. AUGER did suggest on 2007 that such early UHECR anisotropy was compatible with ...
INVESTIGATING THE Ep, i –Eiso CORRELATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The correlation between the spectral peak photon energy, Ep, and the radiated energy or luminosity (i.e., the “Amati relation” and other correlations derived from it) is one of the central and most debated topics in GRB ...
INFLUENCE OF THE RESULTS OF UHECR DETECTION ON THE LHC EXPERIMENTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The cosmic ray energy region 1015 ÷ 1017TeV corresponds to LHC energies 1 ÷ 14TeV in the center-of-mass system. The results obtained in cosmic rays (CR) in this energy interval can therefore be used for developing new ...
DO WE SEE THE ‘IRON PEAK’?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’. The ...
COMPUTATIONAL SCHEMES FOR THE PROPAGATION OF ULTRA HIGH ENERGY COSMIC RAYS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We discuss the problem of ultra high energy particles propagation in astrophysical backgrounds. We present two different computational schemes based on kinetic and Monte Carlo approaches. The kinetic approach is an analytical ...
RESULTS FROM LHCF EXPERIMENT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The LHCf experiment has taken data in 2009 and 2010 p–p collisions at LHC at √s = 0.9TeV and √s = 7TeV. In this paper the most up-to-date results on the inclusive photon spectra and the π0 spectra measured by LHCf are ...
ULTRAHIGH ENERGY COSMIC RAYS: REVIEW OF THE CURRENT SITUATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
We describe the current situation of the data on the highest energy particles in the Universe – the ultrahigh energy cosmic rays. The new results in the field come from the Telescope Array experiment in Utah, U.S.A. For ...
THE MASS COMPOSITION OF ULTRA HIGH ENERGY COSMIC RAYS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The status of the Mass Composition measurements of Ultra High Energy Cosmic Rays is presented, with emphasis on the results from the Fluorescence Detector of the Pierre Auger Observatory. Possible consequences of the present ...
MODIFICATION OF HIERARCHICAL AGGLOMERATIVE CLUSTERING WITH COMPLETE LINKAGE FOR OPTIMAL USAGE WITH PASSIVE OPTICAL NETWORKS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
Today, passive optical networks (PONs) represent a modern solution for high-speed FTTx subscriber lines and networks. Due to the fact that optical fibres and cables are deployed in last-mile network segments. Unfortunately, ...
THE INFLUENCE OF SILVER NANOPARTICLES SYNTHESIS ON THEIR PROPERTIES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
Application of green methods to replace physical and chemical methods for synthesis of silver nanoparticles (AgNPs) has become necessary not only from economic aspect but especially due to its significant impact on ecosystem. ...