A5054895552- Magnetic confinement fusion research
- Impact of Light on Environment and Health
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Sensor Technology and Measurement Systems
- Infrared Target Detection Methodologies
- Ionosphere and magnetosphere dynamics
- Color Science and Applications
- Calibration and Measurement Techniques
- Optical Wireless Communication Technologies
- Advanced Electrical Measurement Techniques
- Remote Sensing in Agriculture
- Magnetic Field Sensors Techniques
- Advanced Measurement and Detection Methods
- Plasma Diagnostics and Applications
- Vehicle emissions and performance
- Fusion materials and technologies
- Laser-Plasma Interactions and Diagnostics
- Atmospheric Ozone and Climate
- Surface Roughness and Optical Measurements
- Air Quality Monitoring and Forecasting
- Building Energy and Comfort Optimization
- Urban Heat Island Mitigation
- Solar and Space Plasma Dynamics
- Scientific Measurement and Uncertainty Evaluation
University of Padua
2013-2025
National Agency for New Technologies, Energy and Sustainable Economic Development
1993-2005
Institute of Ionized Gas
1995-1996
Istituto Nazionale di Fisica Nucleare, Sezione di Padova
1993-1994
Joint European Torus
1993
The most widely used radiance sensor for monitoring Night Sky Brightness (NSB) is the Quality Meter (SQM), making its measurement stability fundamental. A method using Sun as a calibrator was applied to analyse quality of measures recorded in Veneto Region (Italy) and at La Silla (Chile). analysis mainly revealed tendency toward reductions measured NSB due both instrument ageing atmospheric variations. This work compared component instrumental with contribution conditions. spectral...
ABSTRACT The analysis of night cloud cover is very important for astronomical observations in real time, considering a typical observation time about 15 minutes, and to provide statistics. In this article, we use the Sky Quality Meter (SQM) high-resolution temporal La Silla Asiago (Ekar Observatory) sky: 3 5 minutes respectively. We investigate annual evolution natural contributions sky at site not influenced by artificial light (ALAN) one highly influenced. also make correlation between...
Two nanomicas of similar composition, containing muscovite and quartz, but with different particle size distributions, have been used to prepare transparent epoxy nanocomposites. Their homogeneous dispersion, due the nano-size, was achieved even without being organically modified, no aggregation nanoparticles observed, thus maximizing specific interface between matrix nanofiller. No exfoliation or intercalation has observed by XRD, despite significant dispersion filler in which produced...
This paper describes the methodology developed for characterizing a commercial charge-coupled device (CCD) camera as luminance meter analyzing lighting systems and especially measurements in road light plants. Today, several meters based on CCD cameras are market. They very attractive engineer: The availability of high number closely spaced small detectors (pixels) single chip permits analyses almost impossible with traditional meter. These commercial-industrial sold at prices lower than...
The paper presents the calibration activity on imaging system of MINLU instrument, an autonomous sensor suite designed for monitoring light pollution using commercial off-the-shelf components. is extremely compact and with overall mass below 3 kg can be easily installed as a payload drones or sounding balloons. Drones air balloons in fact play important role completing upward emission measurement from satellites allowing increased spatial time resolution convenient altitudes positions....
The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard Terra and Aqua satellites provides measurements of several atmospheric parameters.This paper focuses on the cloud fraction data representing number cloudy pixels divided by total pixels, available through 1° x grids spatial resolution with daily or monthly temporal resolution. aim study is to propose a novel method called Spatial-Temporal Implementation Algorithm (STIA) for analysing satellite 1°grid average values...
The connection between illuminance and luminance measurements is considered to create a traceability link among highly accurate meter, which as an internal standard of the Photometric Laboratory, University Padova, Italy, other meters or photometric heads meters. After introduction on main involved definitions equations linking measurements, this paper presents instruments procedures are applied and, at end, results regarding absolute calibration under test, check their linearity, analysis...
ABSTRACT The study of artificial light at night (ALAN) by satellite is very important for the analysis new astronomical sites and long-term temporal evolution observation emission from ground. data presents many advantages but also some critical points because fluctuations in measurements. main result this paper discovery a correlation between these aerosol concentration combined with cloud cover lunar cycles. In work, we present mathematical empirical model pollution propagation relation to...
The presence of artificial light at night is not only limiting astronomical observations but has been linked to negative effects on human health and behavior wildlife. New measurement systems are therefore needed monitor emissions their time evolution; MINLU autonomous payload designed tested University Padova provide complete aerial sources over extended areas, with the capability be integrated either stratospheric balloons or drones. implemented architecture based commercial components...
In this paper, we analyse the main features of pulsed poloidal current drive (PPCD) technique, used in reversed field pinch configuration to achieve improved confinement conditions. RFX experiment, PPCD corresponds a decrease magnetic fluctuations, peaking temperature profile, and reduced transport plasma–wall interaction. A three-dimensional MHD nonlinear code one-dimensional time-dependent models have been applied study effect on plasma profiles. The simulations show that external...
Light pollution is becoming more and an issue not only for astronomical observations but also the quality of human life. Global light emission from surface sources best detected by satellites. However, drones air ballloons can play important roles in taking local measurements convenient altitudes positions. The scope this paper to define a technique carrying out monitoring at relatively low with airballoons. sensor suite proposed will be able measure luminous intensity polluting their...
The article presents an overview of recent experimental results obtained on the RFX device. authors and studied a reversed field pinch plasma with current up to 1 MA, negligible radiation losses low effective charge. local power particle balance shows that in standard operation core is dominated by magnetic turbulence global confinement mainly provided edge region, where strongly sheared radial electric present. With poloidal drive amplitude fluctuations thermal conductivity are reduced,...
Nonstationary distorted signals need to be analyzed in both the time and frequency domains determine their characteristics. In this paper, a technique based on neural network (NN) is presented which has merit of providing such an analysis real time. After arranging suitable NN, algorithm utilized carry out illustrated. Then, expressions assessing dynamic behavior steady-state accuracy are derived. From expressions, influence NN parameters performance readily recognized. As example, applied...
The use of RGB cameras in photometric applications has grown over the last few decades many fields such as industrial applications, light engineering and analysis quality night sky. In this field, they are often used conjunction with a Sky Quality Meter (SQM), an instrument for measurement sky brightness (NSB), mainly when there is significant amount artificial at (ALAN). performances these two instruments compared here. A simple source composed nine narrowband LEDs integrating sphere was to...
The experimental and theoretical activity performed in the RFX device has allowed a deeper insight into MHD properties of reversed field pinch (RFP) configuration. A set successful experiments demonstrated possibility influencing both amplitude spectrum magnetic fluctuations which characterize RFP new regime (quasi-single-helicity states) where dynamo mechanism works nearly laminar way helical core plasma is produced been investigated. With these studies reduction chaos obtained. continuous...
A very wide-used instrument for the measurement of Night Sky Brightness (NSB) is Quality Meter (SQM). One its important issues tracking NSB long time and connecting variations to changes in outdoor lighting. The stability these radiometers fundamental; variation on behaviour could be confused with sky brightness. SQMs network Veneto Region (Italy) SQM installed at La Silla (Chile) are analysed by using twilight method considering both sunset dawn measurements, which allows compensate shifts...
This paper describes the methodology followed for characterizing a commercial CCD camera as luminance meter measurements in road light plant. Actually several cameras have been proposed on market this type of application and they are sold with full working software including factory calibration units (cd/m/sup 2/). In fact availability high number closely spaced small detectors (pixels) single chip permits analyses almost impossible or very time consuming if carried out traditional...
Sky Quality Meter (SQM) is a commercial instrument based on photometers widely used by amateur astronomers for skyglow measurement from the ground. In framework of MINLU project, two SQM-LE units were integrated in an autonomous sensor suite realized and tested at University Padova monitoring light pollution drones or sounding balloons. During ground tests campaign before airborne measurement, performance both SQM was verified laboratory using controlled sources as reference input; results...
Abstract ANAtOLIA (Atmospheric monitoring to Assess the availability of Optical Links through Atmosphere) is a European Space Agency project aimed at selecting sites for optical communication in atmosphere. The main monitored parameters are cloud cover, aerosol relation atmospheric turbulence and forecasting influence cover reducing atmosphere selected by ESA. In this work, novel algorithm that uses both Pearson correlation coefficient Fourier analysis used assess such influences. Aerosol...