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Conferma Metrologica dei Sistemi di misura dei Parametri S in connessione 2.92mm e nel campo di frequenza da 50 MHz a 40 GHz in accordo con EURAMET cg-12 v.3.0 (03/2018). Validazione per la messa in servizio dei nuovi cavi Rosenberger LU-045-600 2.4mm(f)-2.92mm(f) e LU1-034-600 2.4mm(f)-2.92mm(m)

In questo rapporto tecnico si descrivono le operazioni di Conferma Metrologica del Sistema di misura dei Parametri S in connessione 2.92 mm nel campo di frequenza da 50 MHz a 40 GHz, per la validazione dei nuovi cavi Rosenberger 2.4mm – 2.92mm. Il risultato di queste operazioni è la determinazione dell’Indice di Compatibilità che, se <1 in valore assoluto, valida il sistema di misura INRIM.

Photocatalytic reductive and oxidative ability study of pristine ZnO and CeO2-ZnO heterojunction impregnated with Cu2O

In the present work the Cu2O-ZnO heterosystem and the novel Cu2O-CeO2-ZnO triphasic heterojunction were synthesized impregnating the ZnO and the CeO2-ZnO system surfaces with 0.5% in weight of Cu2O, respectively. While X-ray powder diffraction (XRPD) evidenced any alteration in the matrix phases, the UV–vis and electron paramagnetic resonance (EPR) spectroscopy highlighted a drastic change in the optical and electronic behaviour respect to the non-impregnated samples. Deeply investigati...

Heating ability modulation by clustering of magnetic particles for precision therapy and diagnosis

Magnetic and thermal properties of clustered magnetite nanoparticles submitted to a high-frequency magnetic field is studied by means of rate equations. A simple model of large particle clusters (containing more than one hundred individual particles) is introduced. Dipolar interactions among clustered particles markedly modify shape and area of the hysteresis loops in a way critically dependent on particle size and cluster dimensions, thereby modulating the power released as heat to a host me...

Anisotropy of losses in grain-oriented Fe-Si

Comprehensive assessment of the magnetic behavior of grain-oriented steel (GO) Fe–Si sheets, going beyond the conventional character- ization at power frequencies along the rolling direction (RD), can be the source of much needed information for the optimal design of transformers and efficient rotating machines. However, the quasi-monocrystal character of the material is conducive, besides an obvi- ously strong anisotropic response, to a dependence of the measured properties on the sample geo...

Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea

Current measurements in the open sea are generally acquired by Acoustic Doppler Current Profilers (ADCPs). In the case of ADCPs mounted on spar buoy, current profiles require to be post-processed, to properly take into account the buoy influence: in fact, ADCP compass may reflect alterations induced by the metal structure of the buoy and apparent currents can occur due to the large displacement of the platform. Uncertainty analysis is finally required to properly consider both these effects a...

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Conferma Metrologica dei Sistemi di misura dei Parametri S in connessione 2.92mm e nel campo di frequenza da 50 MHz a 40 GHz in accordo con EURAMET cg-12 v.3.0 (03/2018). Validazione per la messa in servizio dei nuovi cavi Rosenberger LU-045-600 2.4mm(f)-2.92mm(f) e LU1-034-600 2.4mm(f)-2.92mm(m)

Photocatalytic reductive and oxidative ability study of pristine ZnO and CeO2-ZnO heterojunction impregnated with Cu2O

Heating ability modulation by clustering of magnetic particles for precision therapy and diagnosis

Anisotropy of losses in grain-oriented Fe-Si

Improved Current Estimates from Spar Buoy-Mounted ADCP Measurement Station: A Case Study in the Ligurian Sea

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