0000000000426554
AUTHOR
G. Petrucci
showing 8 related works from this author
Treatment of central and sensorineural tinnitus with orally administered Melatonin and Sulodexide: personal experience from a randomized controlled s…
2008
Since very little is understood about the exact aetiology of tinnitus, this has made treatment of the condition difficult. Even though approximately 10-15% of the general population suffer from tinnitus, only 2% consider it serious enough to warrant any treatment. The main problem arising from tinnitus is the disturbance it causes not only in day to day life but also in sleep, leading to fatigue and general discomfort. The present study focused on the effect of Melatonin in conjunction with Sulodexide as a treatment method for tinnitus. Overall, 102 patients suffering from tinnitus were evaluated in a prospective randomised controlled study conducted in a tertiary care ENT department. After…
The storage ring magnet of the third muon (g-2) experiment at CERN
1978
The third ( g −2) experiment carried out at CERN required a storage ring magnet with a field as uniform as possible and known with an accuracy of a few parts per million over the whole storage region. Here we describe this magnet, which has a useful aperture of 120 mm horizontally and 80 mm vertically and a diameter of ∼14 m. The various field controls necessary are indicated, and the complex procedure adopted for the shimming work is described. The finally reached homogeneity of the field, averaged in azimuth, was 3 ppm. All the various error sources and field map corrections needed are analysed. Finally, the special aspects of the machine developed for the shimming are described.
Orli dispersioni elettriche dell’ atmosfera
1929
Sunto. - Nella presente nota sono esposti i risultati di alcune misure relative di dispersione elettrica dell’atmosfera: si riscontrano dei petiodi di irregolarit⦏ accompagnati da fortissime dispersioni.
Sulla capacita delle valvole termoioniche
1929
Sunto. - Nel presente lavoro si fa vedere come si modifichi il valore della capacita di un condensatore piano nel caso che nello spazio fra le due armature esiste una carica spaziale negativa. Caso del condensatore cilindrico. Valvola a due elettrodi.
Final report on the CERN muon storage ring including the anomalous magnetic moment and the electric dipole moment of the muon, and a direct test of r…
1978
Abstract A comprehensive description of the muon storage ring and its operation is given, and the final results of the experiment are presented and discussed. The anomalous magnetic moments of positive and negative muons are found to be aμ+ = 1165911(11) × 10−9 and aμ− = 1165937(12) × 10−9 giving an average value for muons of aμ = 1165924(8.5) × 10−9. The electric dipole moments were also measured with the results Dμ+= (8.6 ± 4.5) × 10−9e · cm and Dμ− = (0.8 ± 4.3) × 10−19e · cm. Under the assumption of the CPT theorem these yield a weighted average of Dμ = (3.7 ± 3.4) × 10−19e · cm. Finally the time transformation of special relativity is shown to be valid to (0.8 ± 0.7) × 10−3 at γ ≅ 29.3…
Study of the leptonic decays of the Z0 boson
1990
Measurements are presented of the cross section ratios Rℓ = σℓ(e+e-→ℓ+ℓ -)/σhh(e+e-→hadrons) for ℓ = e, μ and τ using data taken from a scan around the Z0. The results are Re = (5.09±0.32±0.18)%, Rμ = (4.96±0.35±0.17)% and Rτ,=(4.72±0.38± 0.29)% where, for the ratio Re, the t-channel contribution has been subtracted. These results are consistent with the hypothesis of lepton universality and test this hypothesis at the energy scale s ∼ 8300 GeV2. The absolute cross sections σℓ(e+e-→ℓ +ℓ-) have also been measured. From the cross sections the leptonic partial widths Γe = (83.2±3.0±2.4) MeV, (ΓeΓμ) 1/2=(84.6±3.0±2.4) MeV and (ΓeΓτ) 1/2=(82.6±3.3±3.2) MeV have been extracted. Assuming lepton un…
On the Characterization of Dynamic Properties of Random Processes by Spectral Parameters
2000
This paper deals with the general problem of directly relating the distribution of ranges of wide band random processes to the power spectral density (PSD) by means of closed-form expressions. Various attempts to relate the statistical distribution of ranges to the PSD by means of the irregularity factor or similar parameters have been done by several authors but, unfortunately, they have not been fully successful. In the present study, introducing the so-called analytic processes, the reasons for which these parameters are insufficient to an unambiguous determination of the range distribution and the fact that parameters regarding the time-derivative processes are needed have been explaine…
DETERMINAZIONE DELLA DURATA A FATICA DI COMPONENTI SOGGETTI A SOLLECITAZIONI SCHEMATIZZABILI COME PROCESSI ALEATORI A BANDA STRETTA
2016
In questo lavoro sono state sviluppate le espressioni analitiche per la determinazione della durata a fatica di componenti soggetti a svariate tipologie di sollecitazione aleatorie a banda stretta (con parametro di irregolarità 0.9<aX≤1), in particolare: processi non stazionari di tipo separabile, tensione normale monoassiale con tensione media costante, sollecitazione biassiale con tensioni normali agenti in fase, sollecitazione di sforzo normale e tensione tangenziale agenti in fase, propagazione della frattura. In this paper the analytical equations for the determination of the fatigue life of components subjected to various types of narrowband random processes of stress (having irregula…