Il Nuovo Cimento C

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An application of neural nets to the Rome precipitation series (1782–1989)
Il Nuovo Cimento C - Tập 18 - Trang 547-561 - 1995
D. Anfossi, C. Cappa, S. Alessio
In a recent paper Elsner and Tsonis (1992) have demonstrated the feasibility of short-term prediction of climatic data by means of neural nets. In this paper, the same technique has been applied to the rather long (208 years) Rome precipitation series. At first, some examples of artificially generated time series, ranging from analytical functions to a mathematical model, have been used to test th...... hiện toàn bộ
An algorithm for the automatic detection of anomalous temperature variations at ground level: its application to the METEOSAT-2 satellite
Il Nuovo Cimento C - Tập 15 - Trang 367-379 - 1992
S. Corda, E. Proverbio
The algorithm, starting from techniques typical of image processing and information theory, is an instrument for the detection of anomalous variations in any physical parameter measured by remote sensing. Within a software system capable of checking the validity of such a measurement, comparing it with extant historical data and reporting it, the algorithm acts as a filter able to amplify the anom...... hiện toàn bộ
Global ecology priorities
Il Nuovo Cimento C - Tập 15 - Trang 123-132 - 1992
K. Ya. Kondratyev
An attempt to substantiate priorities of global ecology has been undertaken with an emphasis on two principal aspects: 1) heat balance of the Earth and anthropogenically induced redistribution of its components; 2) closed nature of global biogeochemical cycles. It has been shown that the ecological faith of the Earth depends first of all on biosphere dynamics disturbed by man's impact. The Global ...... hiện toàn bộ
Integral imager: Prototype scientific performances
Il Nuovo Cimento C - Tập 16 - Trang 709-714 - 1993
G. Di Cocco, C. Labanti, G. Malaguti, E. Rossi, F. Schiavone, A. Spizzichino, A. Traci, A. J. Bird, T. Carter, A. J. Dean, A. J. M. Gomm, K. J. Grant, M. Corba, E. Quadrini, G. Villa, B. M. Swinyard
The Imager proposed for the gamma-ray satellite project INTEGRAL is based on a multilayer two-dimensional array of CsI(TI) elements viewed by Si photodiodes. The total active area is ≈2500 cm2. The operative energy interval ranges from 0.05 to 10 MeV. A prototype version of this instrument, ready to be tested on a ballon-borne experiment, has been realized. In this article the expected performance...... hiện toàn bộ
Hadrons and other secondaries generated by cosmic-ray muons underground
Il Nuovo Cimento C - Tập 18 - Trang 517-529 - 1995
F. F. Khalchukov, E. V. Korolkova, V. A. Kudryavtsev, A. S. Malguin, V. G. Ryasny, O. G. Ryazhskaya, G. T. Zatsepin, O. Saavedra
The production of nuclear-active and electromagnetic particles, as well as long-lived isotopes in nuclear and electromagnetic showers generated by cosmic-ray muons at different depths underground is discussed. Characteristics of the secondary components and their dependence on the depth and the muon energy, obtained in experiments and calculations, are presented.
Arguments in favour of a program of seismic detection of gravity wave bursts
Il Nuovo Cimento C - Tập 13 - Trang 847-854 - 1990
A. V. Gusev, V. K. Kravchuk, V. N. Rudenko
The possibility is shown of selecting gravity wave perturbations in earth crust block in the seismic-noise background due to far local sources. It is shown that the utilization of different space-time «colourations» of gravity wave and noise perturbations makes it possible, in principle, to extract the signal in the background of noise of exceeding intensity.
The EAS-TOP calorimeter
Il Nuovo Cimento C - - 1992
M. Aglietta, B. Alessandro, F. Arneodo, L. Bergamasco, A. Campos Fauth, C. Castagnoli, A. Castellina, C. Cattadori, A. Chiavassa, G. Cini, B. D'Ettorre Piazzoli, W. Galeotti, P. L. Ghia, P. Galeotti, G. Mannocchi, C. Morello, G. Navarra, L. Riccati, O. Saavedra, G. C. Trinchero, P. Vallania, S. Vernetto
The muon-hadron detector of EAS-TOP is a 270 m2 calorimeter constructed inside the air shower array on the top of the underground Gran Sasso Laboratory (Italy). The general layout of the detector and the performances of the active part (streamer and proportional chambers) are presented.
The dependence of the cosmic-ray shower age on shower size for vertical sizes in the range 6·105
Il Nuovo Cimento C - Tập 4 - Trang 668-672 - 1981
R. W. Clay, P. R. Gerhardy, D. F. Liebing, G. J. Thornton, J. R. Patterson
Measurements have been made of the electron lateral-distribution age parameter for cosmic-ray showers with sea-level sizes from ∼105 to 6·106 particles. It is found that, in the size range from ∼6·105 particles to ∼6·106 particles, the shower age decreases rapidly with size corresponding to a rapid change in the equivalent development depth with shower size. Measurements of the age distribution of...... hiện toàn bộ
The SO2 pollution in Madrid
Il Nuovo Cimento C - Tập 6 - Trang 605-617 - 1983
G. Finzi, R. García, E. Hernández
In this work, two different stochastic models will be considered, both oriented to the real-time forecast of daily SO2 pollution in Madrid. The first one is a «black-box» model, in which the input-output transfer function is identified by means of the methodology given by Box and Jenkins. The second one is a «grey-box» model with a simple reasonable structure in accordance with the physical laws o...... hiện toàn bộ
Electromagnetic cascade showers with the LPM effect in standard rock initiated by extremely high-energy (1015 eV to 1021 eV) gamma-rays
Il Nuovo Cimento C - Tập 13 - Trang 733-760 - 1990
A. Misaki
High-energy neutrinos produce finally high-energy electromagnetic cascade showers. For the detectio of high-energy neutrinos, it is necessary to examine the behaviour of the electromagnetic cascade showers in the higher-energy region. It is well known that the LPM effect plays a decisive role in the electromagnetic cascade shower development at higher energies. In the present paper, the behaviour ...... hiện toàn bộ
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