The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we show a Brillouin optical time-domain analysis (BOTDA) sensing system experiment employing a tunable narrow-linewidth dual pump-probe source based on modified Brillouin ring laser technology. The developed cost-effective source generates a tunable pump-locked probe light, with suitable wavelength shift, large tuning range (∼200 MHz), narrow linewidth (<2.5 MHz) and adequate power...
Opto-electronic systems (OS) are motion analysis systems, employed in different clinical applications. Optoelectronic plethysmograph (OEP) is a particular OS able to measure pulmonary volumes, starting from marker displacements, placed on the thorax.
Opto-electronic plethysmograph (OEP) is a motion analysis device able to measure chest wal l motion and volume variation by surface measurement. The estimation is obtained through displacements measurements of markers placed on the thorax. Therefore OEP accuracy on markers' displacement measurements may play a role in the volume's measurement. The aim of present work is to evaluate OEP accuracy in...
The aim of this study is to evaluate the Pulmonary Rehabilitation (PR) and post-operative complications on lung cancer patients by means of opto-electronic plethysmography (OEP). FEV1 and FVC have been measured through OEP on 13 lung cancer patients, before and after lobectomy and after pulmonary rehabilitation (PR). In every patient, FEV1 decreases after surgery, whereas FVC decreases only in 8 patients...
This paper introduces several new developments in the SmartBrick structural health monitoring platform. The system, which has been described in previous papers, provides an extremely low-power, long-term method for remote structural health monitoring. The system is capable of monitoring a diverse range of environmental and structural phenomena, including strain, vibration, tilt, and temperature; and...
The aim of present work is to test an optoelectronic system as diagnostic device to preliminary assess the efficacy of asymmetric respiratory rehabilitation. The respiratory rehabilitation efficacy, in terms of tidal volume variations, has been assessed for 14 patients undergone left or right superior lobectomy. Tidal volume variations of six torso compartments have been measured in pre-surgery, post-surgery...
Wireless devices can be used to monitor and record a broad range of phenomena. Their advantages include ease of installation and maintenance and considerable reduction in wiring costs. The addition of battery power and radio communication to such wireless devices can result in a completely autonomous system. The operating environment of monitoring systems is often hostile, due to temperature fluctuations,...
A non-destructive investigation technique for bonding evaluation in external FRP strengthenings is presented. The technique is similar to the usual pulsed echo ultrasonic analyses, but bonding defects are located through the amplitude of the reflection echo rather than its delay time. This new technique has been experimentally demonstrated to be rather unaffected by variations in glue thickness, very...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.