190 research outputs found
Maria Bersani
No full textLa voce illustra la biografia e l'apporto letterario dato da Maria Bersani alla letteratura per l'infanziaThe headword explains the biography and the contribution of the author Maria Bersani to the children's literatur
Exposure-Tolerant Imaging Solution forCultural Heritage Monitoring
No full textThis paper describes a simple and cheap solution specifically designed for monitoring the degradation of thin coatings employed for metal protection. The proposed solution employs a commercial photocamera and a frequency-domain-based approach that is capable of highlighting the surface uniformity changes due to initial corrosion. Even though the proposed solution is specifically designed to monitor the long-time performance of protective coatings employed for the restoration of silver artifacts, it can be successfully used also for assessing the conservation state of other ancient metallic works of art. The proposed solution is made tolerant to exposure changes by using a procedure for sensor nonlinearity identification and correction, does not require a precise lighting control, and employs only free open-source software, so that its overall cost is very low and can be used also by not specifically trained operator
Handheld-Impedance-Measurement System with seven-decade capability and potentiostatic function
No full textThis paper describes design and test of a new impedance-measurement system for nonlinear devices that exhibits a seven-decade range and works down to a frequency of 0.01 Hz. The system is specifically designed for electrochemical measurements, but the proposed architecture can be employed in many other fields where flexible signal generation and analysis are required. The system employs an unconventional signal generator based on two pulsewidth modulation (PWM) oscillators and an autocalibration system that allows uncertainties of less than 3% to be obtained over a range of 1 kΩ to 100 GΩ. A synchronous demodulation processing allows the noise superimposed to the low-amplitude input signals to be made negligibl
Ada Cagli Della Pergola
No full textThe headword explains the biography and the contribution of the author Ada Cagli Della Pergola to the children's literatur
Amelia Rosselli Pincherle
No full textThe headword explains the biography and the contribution of the author Amelia Rosselli to the children's literatur
Silvio Spaventa Filippi
No full textThe headword explains the biography and the contribution of the author Silvio Spaventa Filippi to the children's literatur
Giulia Veronica Varisco
No full textThe headword explains the biography and the contribution of the author Giulia Varisco to the children's literatur
Virginia Piatti Tango
No full textThe headword explains the biography and the contribution of the author Virgini a Piatti Tango to the children's literatur
Emilia Salvioni
No full textThe headword explains the biography and the contribution of the author Emilia Salvioni to the children's literatur
Vincenzo Errante
No full textThe headword explains the biography and the contribution of the author Vincenzo Errante to the children's literatur
- …
