Precision farming is based on monitoring environmental conditions and soil parameter to improve productivity, to optimize soil conservation, to save water and to limit plant diseases. Wireless sensor networks are an optimal solution to implement this monitoring process, covering large area and ensuring fault tolerance. Currently, there are no international standards that deal with environmental testing of Wireless Sensor Networks; therefore a customized test plan was developed basing on a step stress test from 20 °C to 80 °C, with 5 °C steps. The objective of the analysis was to investigate the effects of raised temperature on the performances of a self-designed sensor node. A customized measurement set-up is presented in this paper to test electrical and electronic performances of the node under thermal stress.

The production of olive oil in Sicily, in recent decades, has implemented the use of technologies that have as their main objective the sustainable safeguarding of food quality. Food quality both from the point of view of the transformation process, and from the point of view of product conservation, from olive oil is not a simple condiment but involves important nutritional attentions with health implications. The preservation of bottled olive oil is fundamental in order to improve the life cycle of the product after its transformation, in shelf life. The parameters observed during the observed conservation and storage period; temperature and relative humidity. The information collected is transmitted via data logger for the storage of data, entered and processed, in order to identify particular details and therefore to intervene in the thermoconditioning system. During the conservation period, the main qualitative parameters of the bottled extra virgin olive oil are analyzed by means of chemical analyzes from monovarietals.

We investigate the role of the optical crosstalk in the conditional measurements performed on quantum states of light. In particular, we analyze how the statistics of the conditional states are affected by cross-talk by retrieving their first and second moments and we test the sub-Poissonianity of the state by evaluating the Fano factor.

We address the problem of estimating the three-dimensional positions of NS weak incoherent point-like emitters in an arbitrary spatial configuration. We show that a structured measurement strategy in which a passive linear interferometer feeds into an array of photo-detectors is always optimal for this estimation problem, in the sense that it saturates the quantum Cramér-Rao bound. This work provides insights into the phenomenon of super-resolution through incoherent imaging that has attracted much attention recently. Our results may find applications over a broad spectrum of frequencies, from fluorescence microscopy to stellar interferometry.

This paper presents a strategy for traceability establishment in a electrical calibration laboratory using a precison 8 ½ digit digital multimeter as reference standard. The digital multimeter is calibrated by the National Metrology Laboratory or by an accredited laboratory, and some strategies to define the calibration plan considering the characteristics of the instrument, the scope of the calibration laboratory and the cost of the calibration are presented and discussed. The goal of the calibration plan is to allow the reference multimeter to be used in every measurement function and every range related to the calibration laboratory scope with guaranteed traceability and confidence, so correction factors for every point can be estimated from the calibration points presented in the calibration report. Finally, a calibration report data from a reference digital multimeter is analysed and processed in order to estimate calibration curves and some examples are presented and discussed.