The paper presents our approaches upon the influence of a DECT communication system (1890 MHz carrier) and of a microwave oven (2450 MHz) upon two essential parameters of a neonate mechanical ventilator. As main measuring device, we used a Spectrum Analyzer SPECTRAN HF 60105 V4, alternatively equipped with Hyper LOG 60100 directive antenna and Omni LOG 90200 isotropic antenna. Aiming to exactly identify the cause and its level of influence, we performed the measurements both in the working environment of the ICU (applying the panning approach) and comparatively, more selective, inside an “isolated” ward of the Iasi Maternity hospital, unused due to renewal works. We correlate the changes of the set, programmable parameters with the spectrum and the level of the various disruptive sources. The paper ends with firm recommendations regarding the usage of these potential disturbers in the close vicinity of any modern I.C.U., fully equipped with high technology but very sensitive devices.

Hyperpolarized helium-3 (³He) gas, is a new contrast agent for lung imaging diagnostic in functional Magnetic Resonance Imaging (fMRI) becoming an important technique to diagnose diseases and abnormalities in the respiratory tract. In this paper is described a new modular production method of ³He gas, hyperpolarized using the Metastability Exchange Optical Pumping Technique (MEOP). A standard set of measurements has been collected considering a prototype developed by ITEL Telecomunicazioni srl, able to produce one litre of ³He polarized gas at the pressure of 1000 mbar. A 27% of polarization at a pressure of 1 mbar is obtained in the optical pumping cell in a single run, while a time of about 20 minutes is needed to pump the gas at a final pressure of 1000 mbar in the storage cell.

The aim of this work is to propose a camera calibration procedure for transportation applications in traffic engineering. In particular, a set of camera parameters that describes the mapping between 3-D world referenced coordinates and 2-D image coordinates was identified. This paper describes the camera calibration procedure steps to obtain acquisition of a entire 3-D train profile in critical points of the network.

The design of wind turbines evolved over time, with the scope of becoming less expensive and producing energy more efficiently. This paper deals with a FEM model for the representation of vertical axis wind turbine (VAWT) functioning for diagnostic and monitoring studies, which can provide fundamental data that can optimize the design of the monitoring system and an improvements in fault diagnosis related to vibration effects. In particular in this paper will discuss a monodimensional VAWT model, in order to reduce the computational time and, at the same, by using low computational resources to analyze several load cases. Growing usage of wind turbines has made maintenance a priority, and diagnosing potential faults is crucial to maintaining the turbine's desired availability. The simulation data obtained by the proposed approach allows to optimize condition monitoring and fault diagnostic techniques by the analysis of the wind turbine behavior before the real use on the field with both time and costs reduction.

This study aims to measure motion and neuromuscular activity of the forearm flexor muscle in response to mechanical, vibratory stimuli. In particular, the vibration frequency that maximizes the neuromuscular response was searched. A dedicated measuring system was realised: the mechanical stimulus was provided to subject’s hand by a controlled, vibrating plate; the forearm muscles response was detected through sEMG and tri-axial accelerometric signals. Sinusoidal vibrations at different frequencies in the range 14–32 Hz were delivered. The RMS of the sEMG signal and a accelerometric transfer function (i.e. ratio between acceleration of the plate and acceleration of the target muscle) were computed for the frequency range and then analysed. Preliminary results on six subjects show different mechanical and neuromuscular behaviour between the subjects but also intra-subject variability due to posture and initial state of the muscle. The EMG response to vibration depends on frequency.