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There are many car tests regulated by European and international standards and carried out on tracks to assess vehicle performance. The test preparation phase usually consists of placing road cones on the track with a specific configuration defined by the considered standard; this phase is performed by human operators using imprecise and slow methods, mainly due to the large required distances. In this paper, a new geolocation stake-out system based on GNSS RTK technology was realized and tested, supported by a Matlab-based software application to allow the user to quickly and precisely locate the on-track points on which to position the road cones. The realized stake-out system, innovative and very simple to use, produced negligible average errors (i.e., 2.4–2.9 cm) on the distance between the staked-out points according to the reference standards (distance percentage error 0.29–0.47%). Furthermore, the measured average angular error was also found to be very low, in the range 0.04–0.18°. Finally, ISO 3888-1 and ISO 3888-2 test configurations were reproduced on the proving ground of the Porsche Technical Center by utilizing the realized stake-out system to perform a double lane-change maneuver on car prototypes.
Paolo Visconti; Francesco Iaia; Roberto De Fazio; Nicola Giannoccaro. A Stake-Out Prototype System Based on GNSS-RTK Technology for Implementing Accurate Vehicle Reliability and Performance Tests. Energies 2021, 14, 4885 .
AMA StylePaolo Visconti, Francesco Iaia, Roberto De Fazio, Nicola Giannoccaro. A Stake-Out Prototype System Based on GNSS-RTK Technology for Implementing Accurate Vehicle Reliability and Performance Tests. Energies. 2021; 14 (16):4885.
Chicago/Turabian StylePaolo Visconti; Francesco Iaia; Roberto De Fazio; Nicola Giannoccaro. 2021. "A Stake-Out Prototype System Based on GNSS-RTK Technology for Implementing Accurate Vehicle Reliability and Performance Tests." Energies 14, no. 16: 4885.
This paper reports on the progress of a wearable assistive technology (AT) device designed to enhance the independent, safe, and efficient mobility of blind and visually impaired pedestrians in outdoor environments. Such device exploits the smartphone’s positioning and computing capabilities to locate and guide users along urban settings. The necessary navigation instructions to reach a destination are encoded as vibrating patterns which are conveyed to the user via a foot-placed tactile interface. To determine the performance of the proposed AT device, two user experiments were conducted. The first one requested a group of 20 voluntary normally sighted subjects to recognize the feedback provided by the tactile-foot interface. The results showed recognition rates over 93%. The second experiment involved two blind voluntary subjects which were assisted to find target destinations along public urban pathways. Results show that the subjects successfully accomplished the task and suggest that blind and visually impaired pedestrians might find the AT device and its concept approach useful, friendly, fast to master, and easy to use.
Ricardo Tachiquin; Ramiro Velázquez; Carolina Del-Valle-Soto; Carlos Gutiérrez; Miguel Carrasco; Roberto De Fazio; Andrés Trujillo-León; Paolo Visconti; Fernando Vidal-Verdú. Wearable Urban Mobility Assistive Device for Visually Impaired Pedestrians Using a Smartphone and a Tactile-Foot Interface. Sensors 2021, 21, 5274 .
AMA StyleRicardo Tachiquin, Ramiro Velázquez, Carolina Del-Valle-Soto, Carlos Gutiérrez, Miguel Carrasco, Roberto De Fazio, Andrés Trujillo-León, Paolo Visconti, Fernando Vidal-Verdú. Wearable Urban Mobility Assistive Device for Visually Impaired Pedestrians Using a Smartphone and a Tactile-Foot Interface. Sensors. 2021; 21 (16):5274.
Chicago/Turabian StyleRicardo Tachiquin; Ramiro Velázquez; Carolina Del-Valle-Soto; Carlos Gutiérrez; Miguel Carrasco; Roberto De Fazio; Andrés Trujillo-León; Paolo Visconti; Fernando Vidal-Verdú. 2021. "Wearable Urban Mobility Assistive Device for Visually Impaired Pedestrians Using a Smartphone and a Tactile-Foot Interface." Sensors 21, no. 16: 5274.
Digital and information technologies are heavily pervading several aspects of human activities, improving our life quality. Health systems are undergoing a real technological revolution, radically changing how medical services are provided, thanks to the wide employment of the Internet of Things (IoT) platforms supporting advanced monitoring services and intelligent inferring systems. This paper reports, at first, a comprehensive overview of innovative sensing systems for monitoring biophysical and psychophysical parameters, all suitable for integration with wearable or portable accessories. Wearable devices represent a headstone on which the IoT-based healthcare platforms are based, providing capillary and real-time monitoring of patient’s conditions. Besides, a survey of modern architectures and supported services by IoT platforms for health monitoring is presented, providing useful insights for developing future healthcare systems. All considered architectures employ wearable devices to gather patient parameters and share them with a cloud platform where they are processed to provide real-time feedback. The reported discussion highlights the structural differences between the discussed frameworks, from the point of view of network configuration, data management strategy, feedback modality, etc.
Roberto De Fazio; Massimo De Vittorio; Paolo Visconti. Innovative IoT Solutions and Wearable Sensing Systems for Monitoring Human Biophysical Parameters: A Review. Electronics 2021, 10, 1660 .
AMA StyleRoberto De Fazio, Massimo De Vittorio, Paolo Visconti. Innovative IoT Solutions and Wearable Sensing Systems for Monitoring Human Biophysical Parameters: A Review. Electronics. 2021; 10 (14):1660.
Chicago/Turabian StyleRoberto De Fazio; Massimo De Vittorio; Paolo Visconti. 2021. "Innovative IoT Solutions and Wearable Sensing Systems for Monitoring Human Biophysical Parameters: A Review." Electronics 10, no. 14: 1660.
The evolution of low power electronics and the availability of new smart materials are opening new frontiers to develop wearable systems for medical applications, lifestyle monitoring, and performance detection. This paper presents the development and realization of a novel smart insole for monitoring the plantar pressure distribution and gait parameters; indeed, it includes a piezoresistive sensing matrix based on a Velostat layer for transducing applied pressure into an electric signal. At first, an accurate and complete characterization of Velostat-based pressure sensors is reported as a function of sizes, support material, and pressure trend. The realization and testing of a low-cost and reliable piezoresistive sensing matrix based on a sandwich structure are discussed. This last is interfaced with a low power conditioning and processing section based on an Arduino Lilypad board and an analog multiplexer for acquiring the pressure data. The insole includes a 3-axis capacitive accelerometer for detecting the gait parameters (swing time and stance phase time) featuring the walking. A Bluetooth Low Energy (BLE) 5.0 module is included for transmitting in real-time the acquired data toward a PC, tablet or smartphone, for displaying and processing them using a custom Processing® application. Moreover, the smart insole is equipped with a piezoelectric harvesting section for scavenging energy from walking. The onfield tests indicate that for a walking speed higher than 1 ms−1, the device’s power requirements (i.e.,
Roberto de Fazio; Elisa Perrone; Ramiro Velázquez; Massimo De Vittorio; Paolo Visconti. Development of a Self-Powered Piezo-Resistive Smart Insole Equipped with Low-Power BLE Connectivity for Remote Gait Monitoring. Sensors 2021, 21, 4539 .
AMA StyleRoberto de Fazio, Elisa Perrone, Ramiro Velázquez, Massimo De Vittorio, Paolo Visconti. Development of a Self-Powered Piezo-Resistive Smart Insole Equipped with Low-Power BLE Connectivity for Remote Gait Monitoring. Sensors. 2021; 21 (13):4539.
Chicago/Turabian StyleRoberto de Fazio; Elisa Perrone; Ramiro Velázquez; Massimo De Vittorio; Paolo Visconti. 2021. "Development of a Self-Powered Piezo-Resistive Smart Insole Equipped with Low-Power BLE Connectivity for Remote Gait Monitoring." Sensors 21, no. 13: 4539.
Mobile robots and rovers play an important role in many industrial applications. Under certain constraints, they are suitable in harsh environments and conditions in which protracted human activity is not safe or permitted. In many circumstances, mechanical aspects and electrical consumption need to be optimized for autonomous and wheeled mobile robots. The paper illustrates the design of a semi-custom wheeled mobile robot with high-efficiency mono- or polycrystalline photovoltaic panel on the roof that supports the lithium ion batteries during particular tasks (e.g. navigating rough terrain, obstacles or steep paths) to extend the robot’s autonomy. An electronic controller was designed, and data acquisition related to power consumption performed using a specific experimental setup. The robot can detect parameters such as temperature, humidity, concentrations of toxic gas species and the presence of flames, making it particularly suitable for contaminated environments or industrial plants. For this aim, the mobile robot was equipped with a wide range of commercial sensors and a Global Positioning System receiver to track its position. In addition, using an HC-06 Bluetooth transceiver, the robot receives commands and instructions, and sends the acquired data to the developed IoTool smartphone application, where they are displayed to be analysed by user.
Roberto De Fazio; Dany Mpoi Katamba; Aimè Lay Ekuakille; Miguel Joseph Ferreira; Simon Kidiamboko; Nicola Ivan Giannoccaro; Ramiro Velazquez; Paolo Visconti. Sensors-based mobile robot for harsh environments: functionalities, energy consumption analysis and characterization. ACTA IMEKO 2021, 10, 209 -219.
AMA StyleRoberto De Fazio, Dany Mpoi Katamba, Aimè Lay Ekuakille, Miguel Joseph Ferreira, Simon Kidiamboko, Nicola Ivan Giannoccaro, Ramiro Velazquez, Paolo Visconti. Sensors-based mobile robot for harsh environments: functionalities, energy consumption analysis and characterization. ACTA IMEKO. 2021; 10 (2):209-219.
Chicago/Turabian StyleRoberto De Fazio; Dany Mpoi Katamba; Aimè Lay Ekuakille; Miguel Joseph Ferreira; Simon Kidiamboko; Nicola Ivan Giannoccaro; Ramiro Velazquez; Paolo Visconti. 2021. "Sensors-based mobile robot for harsh environments: functionalities, energy consumption analysis and characterization." ACTA IMEKO 10, no. 2: 209-219.
Point matching in multiple images is an open problem in computer vision because of the numerous geometric transformations and photometric conditions that a pixel or point might exhibit in the set of images. Over the last two decades, different techniques have been proposed to address this problem. The most relevant are those that explore the analysis of invariant features. Nonetheless, their main limitation is that invariant analysis all alone cannot reduce false alarms. This paper introduces an efficient point-matching method for two and three views, based on the combined use of two techniques: (1) the correspondence analysis extracted from the similarity of invariant features and (2) the integration of multiple partial solutions obtained from 2D and 3D geometry. The main strength and novelty of this method is the determination of the point-to-point geometric correspondence through the intersection of multiple geometrical hypotheses weighted by the maximum likelihood estimation sample consensus (MLESAC) algorithm. The proposal not only extends the methods based on invariant descriptors but also generalizes the correspondence problem to a perspective projection model in multiple views. The developed method has been evaluated on three types of image sequences: outdoor, indoor, and industrial. Our developed strategy discards most of the wrong matches and achieves remarkable F-scores of 97%, 87%, and 97% for the outdoor, indoor, and industrial sequences, respectively.
Miguel Carrasco; Domingo Mery; Andrés Concha; Ramiro Velázquez; Roberto De Fazio; Paolo Visconti. An Efficient Point-Matching Method Based on Multiple Geometrical Hypotheses. Electronics 2021, 10, 246 .
AMA StyleMiguel Carrasco, Domingo Mery, Andrés Concha, Ramiro Velázquez, Roberto De Fazio, Paolo Visconti. An Efficient Point-Matching Method Based on Multiple Geometrical Hypotheses. Electronics. 2021; 10 (3):246.
Chicago/Turabian StyleMiguel Carrasco; Domingo Mery; Andrés Concha; Ramiro Velázquez; Roberto De Fazio; Paolo Visconti. 2021. "An Efficient Point-Matching Method Based on Multiple Geometrical Hypotheses." Electronics 10, no. 3: 246.
This paper introduces a novel low-cost solar-powered wearable assistive technology (AT) device, whose aim is to provide continuous, real-time object recognition to ease the finding of the objects for visually impaired (VI) people in daily life. The system consists of three major components: a miniature low-cost camera, a system on module (SoM) computing unit, and an ultrasonic sensor. The first is worn on the user’s eyeglasses and acquires real-time video of the nearby space. The second is worn as a belt and runs deep learning-based methods and spatial algorithms which process the video coming from the camera performing objects’ detection and recognition. The third assists on positioning the objects found in the surrounding space. The developed device provides audible descriptive sentences as feedback to the user involving the objects recognized and their position referenced to the user gaze. After a proper power consumption analysis, a wearable solar harvesting system, integrated with the developed AT device, has been designed and tested to extend the energy autonomy in the different operating modes and scenarios. Experimental results obtained with the developed low-cost AT device have demonstrated an accurate and reliable real-time object identification with an 86% correct recognition rate and 215 ms average time interval (in case of high-speed SoM operating mode) for the image processing. The proposed system is capable of recognizing the 91 objects offered by the Microsoft Common Objects in Context (COCO) dataset plus several custom objects and human faces. In addition, a simple and scalable methodology for using image datasets and training of Convolutional Neural Networks (CNNs) is introduced to add objects to the system and increase its repertory. It is also demonstrated that comprehensive trainings involving 100 images per targeted object achieve 89% recognition rates, while fast trainings with only 12 images achieve acceptable recognition rates of 55%.
Bernardo Calabrese; Ramiro Velázquez; Carolina Del-Valle-Soto; Roberto De Fazio; Nicola Ivan Giannoccaro; Paolo Visconti. Solar-Powered Deep Learning-Based Recognition System of Daily Used Objects and Human Faces for Assistance of the Visually Impaired. Energies 2020, 13, 6104 .
AMA StyleBernardo Calabrese, Ramiro Velázquez, Carolina Del-Valle-Soto, Roberto De Fazio, Nicola Ivan Giannoccaro, Paolo Visconti. Solar-Powered Deep Learning-Based Recognition System of Daily Used Objects and Human Faces for Assistance of the Visually Impaired. Energies. 2020; 13 (22):6104.
Chicago/Turabian StyleBernardo Calabrese; Ramiro Velázquez; Carolina Del-Valle-Soto; Roberto De Fazio; Nicola Ivan Giannoccaro; Paolo Visconti. 2020. "Solar-Powered Deep Learning-Based Recognition System of Daily Used Objects and Human Faces for Assistance of the Visually Impaired." Energies 13, no. 22: 6104.
The security of communication and computer systems is an increasingly important issue, nowadays pervading all areas of human activity (e.g., credit cards, website encryption, medical data, etc.). Furthermore, the development of high-speed and light-weight implementations of the encryption algorithms is fundamental to improve and widespread their application in low-cost, low-power and portable systems. In this scientific article, a high-speed implementation of the AES-128 algorithm is reported, developed for a short-range and high-frequency communication system, called Wireless Connector; a Xilinx ZCU102 Field Programmable Gate Array (FPGA) platform represents the core of this communication system since manages all the base-band operations, including the encryption/decryption of the data packets. Specifically, a pipelined implementation of the Advanced Encryption Standard (AES) algorithm has been developed, allowing simultaneous processing of distinct rounds on multiple successive plaintext packets for each clock period and thus obtaining higher data throughput. The proposed encryption system supports 220 MHz maximum operating frequency, ensuring encryption and decryption times both equal to only 10 clock periods. Thanks to the pipelined approach and optimized solutions for the Substitute Bytes operation, the proposed implementation can process and provide the encrypted packets each clock period, thus obtaining a maximum data throughput higher than 28 Gbit/s. Also, the simulation results demonstrate that the proposed architecture is very efficient in using hardware resources, requiring only 1631 Configurable Logic Blocks (CLBs) for the encryption block and 3464 CLBs for the decryption one.
Paolo Visconti; Stefano Capoccia; Eugenio Venere; Ramiro Velázquez; Roberto De Fazio. 10 Clock-Periods Pipelined Implementation of AES-128 Encryption-Decryption Algorithm up to 28 Gbit/s Real Throughput by Xilinx Zynq UltraScale+ MPSoC ZCU102 Platform. Electronics 2020, 9, 1665 .
AMA StylePaolo Visconti, Stefano Capoccia, Eugenio Venere, Ramiro Velázquez, Roberto De Fazio. 10 Clock-Periods Pipelined Implementation of AES-128 Encryption-Decryption Algorithm up to 28 Gbit/s Real Throughput by Xilinx Zynq UltraScale+ MPSoC ZCU102 Platform. Electronics. 2020; 9 (10):1665.
Chicago/Turabian StylePaolo Visconti; Stefano Capoccia; Eugenio Venere; Ramiro Velázquez; Roberto De Fazio. 2020. "10 Clock-Periods Pipelined Implementation of AES-128 Encryption-Decryption Algorithm up to 28 Gbit/s Real Throughput by Xilinx Zynq UltraScale+ MPSoC ZCU102 Platform." Electronics 9, no. 10: 1665.
The huge spreading of Internet of things (IoT)-oriented modern technologies is revolutionizing all fields of human activities, leading several benefits and allowing to strongly optimize classic productive processes. The agriculture field is also affected by these technological advances, resulting in better water and fertilizers’ usage and so huge improvements of both quality and yield of the crops. In this manuscript, the development of an IoT-based smart traceability and farm management system is described, which calibrates the irrigations and fertigation operations as a function of crop typology, growth phase, soil and environment parameters and weather information; a suitable software architecture was developed to support the system decision-making process, also based on data collected on-field by a properly designed solar-powered wireless sensor network (WSN). The WSN nodes were realized by using the ESP8266 NodeMCU module exploiting its microcontroller functionalities and Wi-Fi connectivity. Thanks to a properly sized solar power supply system and an optimized scheduling scheme, a long node autonomy was guaranteed, as experimentally verified by its power consumption measures, thus reducing WSN maintenance. In addition, a literature analysis on the most used wireless technologies for agri-food products’ traceability is reported, together with the design and testing of a Bluetooth low energy (BLE) low-cost sensor tag to be applied into the containers of agri-food products, just collected from the fields or already processed, to monitor the main parameters indicative of any failure or spoiling over time along the supply chain. A mobile application was developed for monitoring the tracking information and storing conditions of the agri-food products. Test results in real-operative scenarios demonstrate the proper operation of the BLE smart tag prototype and tracking system.
Paolo Visconti; Roberto De Fazio; Ramiro Velázquez; Carolina Del-Valle-Soto; Nicola Ivan Giannoccaro. Development of Sensors-Based Agri-Food Traceability System Remotely Managed by A Software Platform for Optimized Farm Management. Sensors 2020, 20, 3632 .
AMA StylePaolo Visconti, Roberto De Fazio, Ramiro Velázquez, Carolina Del-Valle-Soto, Nicola Ivan Giannoccaro. Development of Sensors-Based Agri-Food Traceability System Remotely Managed by A Software Platform for Optimized Farm Management. Sensors. 2020; 20 (13):3632.
Chicago/Turabian StylePaolo Visconti; Roberto De Fazio; Ramiro Velázquez; Carolina Del-Valle-Soto; Nicola Ivan Giannoccaro. 2020. "Development of Sensors-Based Agri-Food Traceability System Remotely Managed by A Software Platform for Optimized Farm Management." Sensors 20, no. 13: 3632.
This paper describes the development and characterization of a smart garment for monitoring the environmental and biophysical parameters of the user wearing it; the wearable application is focused on the control to workers’ conditions in dangerous workplaces in order to prevent or reduce the consequences of accidents. The smart jacket includes flexible solar panels, thermoelectric generators and flexible piezoelectric harvesters to scavenge energy from the human body, thus ensuring the energy autonomy of the employed sensors and electronic boards. The hardware and firmware optimization allowed the correct interfacing of the heart rate and SpO2 sensor, accelerometers, temperature and electrochemical gas sensors with a modified Arduino Pro mini board. The latter stores and processes the sensor data and, in the event of abnormal parameters, sends an alarm to a cloud database, allowing company managers to check them via a web app. The characterization of the harvesting subsection has shown that ≈ 265 mW maximum power can be obtained in a real scenario, whereas the power consumption due to the acquisition, processing and BLE data transmission functions determined that a 10 mAh/day charge is required to ensure the device’s proper operation. By charging a 380 mAh Lipo battery in a few hours by means of the harvesting system, an energy autonomy of 23 days was obtained, in the absence of any further energy contribution.
Roberto De Fazio; Donato Cafagna; Giorgio Marcuccio; Alessandro Minerba; Paolo Visconti. A Multi-Source Harvesting System Applied to Sensor-Based Smart Garments for Monitoring Workers’ Bio-Physical Parameters in Harsh Environments. Energies 2020, 13, 2161 .
AMA StyleRoberto De Fazio, Donato Cafagna, Giorgio Marcuccio, Alessandro Minerba, Paolo Visconti. A Multi-Source Harvesting System Applied to Sensor-Based Smart Garments for Monitoring Workers’ Bio-Physical Parameters in Harsh Environments. Energies. 2020; 13 (9):2161.
Chicago/Turabian StyleRoberto De Fazio; Donato Cafagna; Giorgio Marcuccio; Alessandro Minerba; Paolo Visconti. 2020. "A Multi-Source Harvesting System Applied to Sensor-Based Smart Garments for Monitoring Workers’ Bio-Physical Parameters in Harsh Environments." Energies 13, no. 9: 2161.
This paper aims to study the limitations and performances of the main energy storage devices commonly used in energy harvesting applications, namely super-capacitors (SC) and lithium polymer (LiPo) batteries. The self-discharge phenomenon is the main limitation to the employment of SCs to store energy for a long time, thus reducing efficiency and autonomy of the energy harvesting system. Therefore, the analysis of self-discharge trends was carried out for three different models of commercial SCs, describing the phenomenon in terms of self-discharge rate and internal resistance. In addition, physical interpretations concerning the self-discharge mechanism based on the experimental data are provided, thus explaining the two super-imposed phenomena featured by distinct time constants. Afterwards, the dependence of self-discharge phenomenon from the charging time duration (namely, SCs charged at 5 V and then kept under charge for one or five hours) was analyzed; by comparing the voltage drop during the self-discharge process, a self-discharge reduction for longer charging durations was obtained and the physical interpretation provided (at best −6.8% after 24 h and −13.4% after 120 h). Finally, self-discharge trends of two commercial 380 mAh LiPo batteries (model LW 752035) were acquired and analyzed; the obtained results show an open circuit voltage reduction of only 0.59% in the first 24 h and just 1.43% after 124 h.
Roberto De Fazio; Donato Cafagna; Giorgio Marcuccio; Paolo Visconti. Limitations and Characterization of Energy Storage Devices for Harvesting Applications. Energies 2020, 13, 783 .
AMA StyleRoberto De Fazio, Donato Cafagna, Giorgio Marcuccio, Paolo Visconti. Limitations and Characterization of Energy Storage Devices for Harvesting Applications. Energies. 2020; 13 (4):783.
Chicago/Turabian StyleRoberto De Fazio; Donato Cafagna; Giorgio Marcuccio; Paolo Visconti. 2020. "Limitations and Characterization of Energy Storage Devices for Harvesting Applications." Energies 13, no. 4: 783.
This work is aimed at the development of innovative, easy and cheap methods for the stabilization, inertization and valorisation of the organic fraction of municipal solid waste (OFMSW). For the first time, two original processes for transforming the organic waste into an inert, odorless and sanitized material were here proposed. The first one, called dual step, starts with grinding of the OFMSW, by means of an industrial shredder. After being finely ground, the organic waste was exposed to a sterilization process by means of UV/ozone radiations or thermal treatment (stabilization phase) in order to obtain a complete removal of the OFMSW’s bacterial activity. By means of several microbiological analyses, the best sterilization method was chosen. The incorporation in a thermosetting matrix was, then, carried out through mixing the sterilized and finely ground organic waste into a water soluble urea formaldehyde (UF) based resin, with a formaldehyde content less than 1% wt, followed by a thermal treatment for UF-resin crosslinking (inertization phase). An alternative cheaper and easier process, called one step, was also proposed and investigated, by combining the sterilization with the curing thermal process (at higher temperature) of the thermosetting matrix. The preliminary experimental results reported in this paper suggest that both the proposed methods could be considered suitable for the production of high valorized innovative OFMSW-derived panels or bricks that could find application in several fields, such as building or construction materials. Finally, a brief description of the prototype machinery, properly designed for implementing OFMSW stabilization and valorization processes, is reported.
Carola Esposito Corcione; Francesca Ferrari; Raffaella Striani; Stefania Minosi; Mauro Pollini; Federica Paladini; Angelica Panico; Roberto De Fazio; Paolo Visconti; Antonio Greco. An Innovative Green Process for the Stabilization and Valorization of the Organic Fraction of Municipal Solid Waste. Applied Sciences 2019, 9, 4516 .
AMA StyleCarola Esposito Corcione, Francesca Ferrari, Raffaella Striani, Stefania Minosi, Mauro Pollini, Federica Paladini, Angelica Panico, Roberto De Fazio, Paolo Visconti, Antonio Greco. An Innovative Green Process for the Stabilization and Valorization of the Organic Fraction of Municipal Solid Waste. Applied Sciences. 2019; 9 (21):4516.
Chicago/Turabian StyleCarola Esposito Corcione; Francesca Ferrari; Raffaella Striani; Stefania Minosi; Mauro Pollini; Federica Paladini; Angelica Panico; Roberto De Fazio; Paolo Visconti; Antonio Greco. 2019. "An Innovative Green Process for the Stabilization and Valorization of the Organic Fraction of Municipal Solid Waste." Applied Sciences 9, no. 21: 4516.
The aim of this manuscript is to provide an overview about the possible applications of carbon nanotubes (CNTs) on two of the most crucial fields of the modern civilization, namely the electronic and propulsion ones. Specifically, implementation examples of some common electronic devices as MOSFETs, diodes and sensors, based on the unusual and exotic properties of CNTs are briefly shown. Moreover, by exploiting the photo-ignition property of CNTs (by means of an intense luminous pulse), this carbon-based material can be used to trigger the combustion of different kind of fuels in propulsion applications. In this context, the experimental results of the photo-ignition process of dry mixtures of CNTs enriched with metallic catalyzer, employing LED-based radiation source, are reported as well as the results related to the combustion tests of different fuels, mixed with air, in a combustion chamber.
Roberto De Fazio; Patrizio Primiceri; Antonio Paolo Carlucci; Paolo Visconti. Application fields overview of carbon nanotubes in electronics and propulsion: CNTs photo-ignition by white power LEDs for improved fuels combustion. 2018 International Conference on IC Design & Technology (ICICDT) 2018, 129 -132.
AMA StyleRoberto De Fazio, Patrizio Primiceri, Antonio Paolo Carlucci, Paolo Visconti. Application fields overview of carbon nanotubes in electronics and propulsion: CNTs photo-ignition by white power LEDs for improved fuels combustion. 2018 International Conference on IC Design & Technology (ICICDT). 2018; ():129-132.
Chicago/Turabian StyleRoberto De Fazio; Patrizio Primiceri; Antonio Paolo Carlucci; Paolo Visconti. 2018. "Application fields overview of carbon nanotubes in electronics and propulsion: CNTs photo-ignition by white power LEDs for improved fuels combustion." 2018 International Conference on IC Design & Technology (ICICDT) , no. : 129-132.
Aim of this paper is the design of an absorption spectrophotometer based on LED technology presenting several advantages such as high luminous efficiency, reliability, long operating duration, low maintenance and low power consumption besides the reduction of analyte temperature variations which occur if Xenon light source is used. An optical filtering system was realized to detect analyte absorption for each wavelength range selected by proper optical filters; also to characterize filtered light beam in terms of its coherence length, thus correlating measured absorption spectrum with light source characteristics, the Michelson interferometer was used. Realized white LED-based spectrophotometer can be used to monitor air quality in hospital rooms or to detect atmospheric pollution deriving from vehicular traffic and different typology of pollutants (e.g., heavy metals deriving by industrial activities). A PC-interfaced control unit acquires and processes raw data provided by sensors (pressure, temperature, humidity, luminosity) and manages the optical filtering system motion by actuating a stepper motor. Whole system operation was tested and obtained results confirm the proper functioning and correct interaction, through PC terminal, between user and control unit.
P. Visconti; P. Primiceri; Roberto de Fazio; A. Lay-Ekuakille. Development and Characterization of a white Led-Based Spectrophotometer for UV/VIS Gaseous Pollutants Detection Employing Michelson Interferometer and an Optical Filtering System. Instruments and Experimental Techniques 2018, 61, 283 -291.
AMA StyleP. Visconti, P. Primiceri, Roberto de Fazio, A. Lay-Ekuakille. Development and Characterization of a white Led-Based Spectrophotometer for UV/VIS Gaseous Pollutants Detection Employing Michelson Interferometer and an Optical Filtering System. Instruments and Experimental Techniques. 2018; 61 (2):283-291.
Chicago/Turabian StyleP. Visconti; P. Primiceri; Roberto de Fazio; A. Lay-Ekuakille. 2018. "Development and Characterization of a white Led-Based Spectrophotometer for UV/VIS Gaseous Pollutants Detection Employing Michelson Interferometer and an Optical Filtering System." Instruments and Experimental Techniques 61, no. 2: 283-291.
The aim of this work is to investigate and characterize the photo-ignition process of dry multi-walled carbon nanotubes (MWCNTs) mixed with ferrocene (FeCp2) powder, using an LED (light-emitting diode) as the light source, a combination that has never been used, to the best of our knowledge. The ignition process was improved by adding a lipophilic porphyrin (H2Pp) in powder to the MWCNTs/FeCp2 mixtures—thus, a lower ignition threshold was obtained. The ignition tests were carried out by employing a continuous emission and a pulsed white LED in two test campaigns. In the first, two MWCNT typologies, high purity (HP) and industrial grade (IG), were used without porphyrin, obtaining, for both, similar ignition thresholds. Furthermore, comparing ignition thresholds obtained with the LED source with those previously obtained with a Xenon (Xe) lamp, a significant reduction was observed. In the second test campaign, ignition tests were carried out by means of a properly driven and controlled pulsed XHP70 LED source. The minimum ignition energy (MIE) of IG-MWCNTs/FeCp2 samples was determined by varying the duration of the light pulse. Experimental results show that ignition is obtained with a pulse duration of 110 ms and a MIE density of 266 mJ/cm2. The significant reduction of the MIE value (10–40%), observed when H2Pp in powder form was added to the MWCNTs/FeCp2 mixtures, was ascribed to the improved photoexcitation and charge transfer properties of the lipophilic porphyrin molecules.
Paolo Visconti; Patrizio Primiceri; Roberto De Fazio; Selma Elaine Mazzetto; Giuseppe Mele; Antonio Paolo Carlucci. Improved Photo-Ignition of Carbon Nanotubes/Ferrocene Using a Lipophilic Porphyrin under White Power LED Irradiation. Materials 2018, 11, 127 .
AMA StylePaolo Visconti, Patrizio Primiceri, Roberto De Fazio, Selma Elaine Mazzetto, Giuseppe Mele, Antonio Paolo Carlucci. Improved Photo-Ignition of Carbon Nanotubes/Ferrocene Using a Lipophilic Porphyrin under White Power LED Irradiation. Materials. 2018; 11 (1):127.
Chicago/Turabian StylePaolo Visconti; Patrizio Primiceri; Roberto De Fazio; Selma Elaine Mazzetto; Giuseppe Mele; Antonio Paolo Carlucci. 2018. "Improved Photo-Ignition of Carbon Nanotubes/Ferrocene Using a Lipophilic Porphyrin under White Power LED Irradiation." Materials 11, no. 1: 127.
Patrizio Primiceri; Roberto De Fazio; Luciano Strafella; Antonio Paolo Carlucci; Paolo Visconti. Photo-induced ignition phenomenon of carbon nanotubes by Xenon pulsed light: Ignition tests analysis, automotive and new potential applications, future developments. Journal of Applied Research and Technology 2017, 15, 609 -623.
AMA StylePatrizio Primiceri, Roberto De Fazio, Luciano Strafella, Antonio Paolo Carlucci, Paolo Visconti. Photo-induced ignition phenomenon of carbon nanotubes by Xenon pulsed light: Ignition tests analysis, automotive and new potential applications, future developments. Journal of Applied Research and Technology. 2017; 15 (6):609-623.
Chicago/Turabian StylePatrizio Primiceri; Roberto De Fazio; Luciano Strafella; Antonio Paolo Carlucci; Paolo Visconti. 2017. "Photo-induced ignition phenomenon of carbon nanotubes by Xenon pulsed light: Ignition tests analysis, automotive and new potential applications, future developments." Journal of Applied Research and Technology 15, no. 6: 609-623.
P. Visconti; G. Giannotta; R. Brama; P. Primiceri; R. De Fazio; A. Malvasi. FRAMEWORK IMPLEMENTATION, FIRMWARE DEVELOPMENT AND CHARACTERIZATION OF FLEX-SPI COMMUNICATION PROTOCOL: ENERGY CONSUMPTION ANALYSIS AND COMPARISON WITH I2C STANDARD. International Journal on Smart Sensing and Intelligent Systems 2017, 10, 754 -792.
AMA StyleP. Visconti, G. Giannotta, R. Brama, P. Primiceri, R. De Fazio, A. Malvasi. FRAMEWORK IMPLEMENTATION, FIRMWARE DEVELOPMENT AND CHARACTERIZATION OF FLEX-SPI COMMUNICATION PROTOCOL: ENERGY CONSUMPTION ANALYSIS AND COMPARISON WITH I2C STANDARD. International Journal on Smart Sensing and Intelligent Systems. 2017; 10 (4):754-792.
Chicago/Turabian StyleP. Visconti; G. Giannotta; R. Brama; P. Primiceri; R. De Fazio; A. Malvasi. 2017. "FRAMEWORK IMPLEMENTATION, FIRMWARE DEVELOPMENT AND CHARACTERIZATION OF FLEX-SPI COMMUNICATION PROTOCOL: ENERGY CONSUMPTION ANALYSIS AND COMPARISON WITH I2C STANDARD." International Journal on Smart Sensing and Intelligent Systems 10, no. 4: 754-792.
P. Visconti; G. Giannotta; R. Brama; P. Primiceri; R. De Fazio; A. Malvasi. OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES. International Journal on Smart Sensing and Intelligent Systems 2017, 10, 506 -550.
AMA StyleP. Visconti, G. Giannotta, R. Brama, P. Primiceri, R. De Fazio, A. Malvasi. OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES. International Journal on Smart Sensing and Intelligent Systems. 2017; 10 (3):506-550.
Chicago/Turabian StyleP. Visconti; G. Giannotta; R. Brama; P. Primiceri; R. De Fazio; A. Malvasi. 2017. "OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES." International Journal on Smart Sensing and Intelligent Systems 10, no. 3: 506-550.
P. Visconti; P. Primiceri; R. De Fazio; A. Lay Ekuakille. A SOLAR-POWERED WHITE LED-BASED UV-VIS SPECTROPHOTOMETRIC SYSTEM MANAGED BY PC FOR AIR POLLUTION DETECTION IN FARAWAY AND UNFRIENDLY LOCATIONS. International Journal on Smart Sensing and Intelligent Systems 2017, 10, 18 -48.
AMA StyleP. Visconti, P. Primiceri, R. De Fazio, A. Lay Ekuakille. A SOLAR-POWERED WHITE LED-BASED UV-VIS SPECTROPHOTOMETRIC SYSTEM MANAGED BY PC FOR AIR POLLUTION DETECTION IN FARAWAY AND UNFRIENDLY LOCATIONS. International Journal on Smart Sensing and Intelligent Systems. 2017; 10 (1):18-48.
Chicago/Turabian StyleP. Visconti; P. Primiceri; R. De Fazio; A. Lay Ekuakille. 2017. "A SOLAR-POWERED WHITE LED-BASED UV-VIS SPECTROPHOTOMETRIC SYSTEM MANAGED BY PC FOR AIR POLLUTION DETECTION IN FARAWAY AND UNFRIENDLY LOCATIONS." International Journal on Smart Sensing and Intelligent Systems 10, no. 1: 18-48.
In this paper, the design and testing of a PC-interfaced PIC-based control unit used to manage an absorption spectrophotometer, employing a white LED as light source, are described. LED technology allows to perform the absorption measurements reducing the analyte temperature variations and thus noise generation, which occur if a Xenon light source, usually employed, is used; also thanks to LED technology, the system results low cost, easy to use and with a low power consumption. The realized spectrophotometer can be used for atmospheric and industrial pollutant detection or for indoor air monitoring (e.g., in hospital rooms), being able to detect particulate matter, pesticides, volatile organic compounds as well as pollution produced by heavy metals. The realized system manages the different required functionalities, such as acquisition and processing, via firmware, of raw data provided by sensors, actuation of mechanical devices (stepper motor and solenoid valve), and synchronizing and controlling the data exchange between hardware sections, microcontroller, and PC. Both hardware and software sections were designed carrying out the appropriate tests to verify their proper operation. Results confirm the correct system functioning and interaction, via PC terminal, between user and the realized control unit.
Paolo Visconti; Aime Lay-Ekuakille; Patrizio Primiceri; Giuseppe Ciccarese; Roberto de Fazio. Hardware Design and Software Development for a White LED-Based Experimental Spectrophotometer Managed by a PIC-Based Control System. IEEE Sensors Journal 2017, 17, 2507 -2515.
AMA StylePaolo Visconti, Aime Lay-Ekuakille, Patrizio Primiceri, Giuseppe Ciccarese, Roberto de Fazio. Hardware Design and Software Development for a White LED-Based Experimental Spectrophotometer Managed by a PIC-Based Control System. IEEE Sensors Journal. 2017; 17 (8):2507-2515.
Chicago/Turabian StylePaolo Visconti; Aime Lay-Ekuakille; Patrizio Primiceri; Giuseppe Ciccarese; Roberto de Fazio. 2017. "Hardware Design and Software Development for a White LED-Based Experimental Spectrophotometer Managed by a PIC-Based Control System." IEEE Sensors Journal 17, no. 8: 2507-2515.