Patrick Kapita

• Doctor of Engineering
• PhD at University of Siena

This paper shows the feasibility of the blood analysis based on the electrochemical impedance spectroscopy (EIS) using compact low-cost instrumentations. This paper presents the measurement problem and some models for the interpretation of blood impedance spectra. The requirements for ad-hoc instrumentation are derived, and the implementation of a...

Device performances can be improved by means of nanotechnology using nanoparticJes at certain quantities. AFM (atomic force microscopy) deals with scaru1ing technique to provide on high resolution, 3 D images of sample surfaces. These surfaces included in this paper are related to devices with specific conductivity and must be characterized in...

In this paper, we describe the construction and characterization of a low-cost ultrasonic sensing system for obstacle avoidance on a mobile robot. In some locations and in certain conditions where electronic components are not readily available and not affordable, it is more advantageous to design an obstacle sensing system with a single sensor (e....

Beamforming is an advanced signal processing technique used in sensor arrays for directional signal transmission or reception. The paper deals with a system based on an ultrasound transmitter and an array of receivers, to determine the distance to an obstacle by measuring the time of flight and – using the phase beamforming technique to process the...

Particulate matters and ozone are often neglected as pollutant elements when people deal with widespread pollution. Particulate matters PM 10 , PM 2.5 , are produced by human activities namely industries and car traffic but also by natural activities like blowing wind from desert, volcanoes, etc... Ozone, instead, has a double consideration: it is...

Environmental monitoring networks are essential for understanding environmental dynamics of a given region if dedicated sensors and sensing systems are used. They are sensitive to external and internal fluctuations that can produce loss of capabilities of correct detection and retrieval of desired environmental quantities. Recent findings, in terms...

Environmental monitoring networks are essential for understanding environmental dynamics of a given region if dedicated sensors and sensing systems are used. They are sensitive to external and internal fluctuations that can produce loss of capabilities of correct detection and retrieval of desired environmental quantities. Recent findings, in terms...

In this research work, we report on design and realization of flexible GUI (graphical user interface) to be used on current and past instrumentation especially for instruments using Michelson interferometer. It was designed for an affordable spectrophotometer constructed in the laboratory of Measurement and Instrumentation of the Department of Inno...