In this paper we present a blockchain based system for the supply chain management of particular Italian bread. Goal is to guarantee transparent and auditable traceability Carasau bread where each actor can verify quality products conformity normative about hygienic-sanitary conditions along chain. To realize relied on Blockchain Internet Thing technologies in order provide trustless environment, which trust placed cryptography, mathematical operations network, not public or private...

Abstract Fermi level pinning in doped metal oxide (MO) nanocrystals (NCs) results the formation of depletion layers, which affect their optical and electronic properties, ultimately application smart optoelectronics, photocatalysis, or energy storage. For a precise control over functionality, it is important to understand bands at nanoscale. Here, we show that layer engineering allows designing energetic band profiles predicting optoelectronic properties MO NCs. This achieved by shell...

This work copes with the design and implementation of a wireless sensors network architecture to automatically continuously monitor, for first time, manufacturing process Sardinian Carasau bread. The case traditional bakery company facing challenge Food-Industry 4.0 competitiveness is investigated. was analyzed identify most relevant variables be monitored during product manufacturing. Then, heterogeneous, multi-tier designed realized allow real-time control data collection critical steps...

To avoid high recurrence rate, the hyperthermia treatment (HT) of bone tumors after surgical intervention was investigated. Innovative magnetic biomaterials can be used as thermoseeds to perform local thermal therapy. This work copes with multiphysic modeling HT residual Osteosarcoma (OS) cells using so-called scaffolds. The goal is develop a model that serve tool plan an accurate, safe, and high-quality treatment. Therefore, electromagneto-thermal problem radio-frequency heating solved...

Magnetic tissue scaffolds are a promising powerful tool for performing interstitial tumor hyperthermia against the residual bone cancer cells, after surgical intervention. The design of implant architecture is crucial several biomedical requirements. However, to date, influence topology on treatment outcome has never been assessed. Furthermore, heating ability function sample mass and geometry. In this work, simple methodology designing biomimetic using triply periodic minimal surfaces...

Magnetic scaffolds (MagSs) are magneto-responsive devices obtained by the combination of traditional biomaterials (e.g., polymers, bioceramics, and bioglasses) magnetic nanoparticles. This work analyzes literature about MagSs used as drug delivery systems for tissue repair cancer treatment. These can be innovative drugs and/or biomolecules systems. Through application a static or dynamic stimulus, trigger release in controlled remote way. However, most not optimized properly modeled, causing...

This works claims to define, via numerical simulations, magnetic field parameters perform an effective <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">in situ</i> bone tumor hyperthermia treatment using scaffolds. A Cole-Cole model describe the frequency response of susceptibility nanoparticles embedded in novel biomaterials is explored. The heating phenomenon investigated, considering both ischemic and inflamed state fracture gap at...

Recently developed superparamagnetic scaffolds for bone tissue engineering are still a complex object to deal with. Thanks the possibility of controlling them remotely and directing therapeutic action in non-invasive way, this work deals with necessity clear definition quantification field gradient, forces velocity it could exert on magnetic nanocarriers static field, heat power generated when time-varying is applied, better defining frequency response nanoparticles entrapped solid matrix.

An inverse scattering method working at microwave frequencies for cervical diagnostics is proposed in this work. The aim the diagnosis of myelopathy, which a disease that affects first part spinal cord (between C3 and C7 vertebra). A preliminary feasibility analysis oriented toward development an imaging system reported. prototype includes set antennas illuminate neck retrieve samples scattered electric field. related problem solved by using nonlinear Newton-type reconstruction procedure,...

Magnetic scaffolds have been investigated as promising tools for the interstitial hyperthermia treatment of bone cancers, to control local recurrence by enhancing radio- and chemotherapy effectiveness. The potential magnetic motivates development production strategies enabling tunability resulting properties. Within this framework, deposition drop-casting nanoparticles on suitable offer advantages such ease high loading, although these approaches are often associated with a non-uniform final...

Magnetic biomaterials are multifunctional tools currently under investigation as theranostic platforms for biomedical applications. They can be implanted in bone tissue after cancer resection to perform local interstitial hyperthermia treatment. Given the requirements of high quality treatment, therapy should performed monitoring system temperature, avoid hot spots and control treatment outcome. It is known that magnetic properties such implants vary with temperature. hypotesized dynamic...

Space debris are orbiting objects that represent a major threat for space operations. The most used countermeasure to face this is, by far, collision avoidance, namely the set of maneuvers allow avoid with debris. Since avoidance is tightly related knowledge state (position and speed), observation orbital key problem. In work bistatic radar configuration named BIRALET (BIstatic RAdar LEO Tracking) detect at 410 MHz, using Sardinia Radio Telescope as receiver antenna. signal-to-noise ratio,...

Abstract This contribution presents a novel physically based approach to modeling the rain attenuation affecting terrestrial links. The model is devised by investigating path reduction factor (PF) on links, typical element of prediction models introduced take into due account spatial inhomogeneity rainfall. To this aim, large number PF values are analyzed simulating interaction hypothetical link with set realistic synthetic fields. dependence different parameters such as length, operational...

Agriculture is facing the challenge of increasing quality food production with environmentally friendly and health compatible processes featuring limited use chemicals. The elimination pathogens harmful biological agents still remains a fundamental requirement. Therefore, soil physical disinfestation disinfection represent promising approach to sustainable profitable agriculture. For this reason, cheap selective method based on microwave power proposed. Microwave and, consequently,...

In this paper, a microwave imaging approach based on artificial neural networks (ANNs) for neck tumor detection is presented. The aim of technique to retrieve the geometric and dielectric properties identify possible presence tumors, starting from scattered electric field data. A fully-connected network developed test feasibility proposed approach. Moreover, numerical model including main features cross section specifically designed in order create suitable training dataset. Subsequently,...

This work deals with the electromagnetic characterization of Carasau bread doughs, in microwave range region. The microstructure, texture, product quality and dielectric properties were investigated, jointly a thorough thermogravimetric analysis. goal is to link physical process variables. variation during dough leavening studied. raw materials (water, yeast, salt semolina) measured from 500 MHz 8.5 GHz. Given heterogeneous character possibility predicting by using mixing formula final...

<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Goal:</i> Deep-seated tumors (DST) can be treated using thermoseeds exposed to a radiofrequency magnetic field for performing local interstitial hyperthermia treatment (HT). Several research efforts were oriented the manufacturing of novel biocompatible nanostructured thermo-seeds, called scaffolds (MagS). iron-doped bioceramics or polymers in various formulations are available. However, crucial...

With the increasing demand for compact, lightweight, cost-effective, and high-performance radiofrequency (RF) devices, development of low-profile antennas becomes crucial. This article presents a study novel carbon-cellulose-based paste intended screen printing RF devices. The investigation specifically explores application high-reactivity carbon mixture (HRCM) particles as conductive fillers. results demonstrate that optimal electrical conductivity values discrete electromagnetic dipole...

The shielding effectiveness (SE) has become afundamental step in testing active or passive electricdevices. Reverberating Chamber (RC) is a wellestablishedmethod for determining the SE since theadvantage to expose material more realisticenvironment. In this paper SEe of electrically largeenclosure with metallic mesh grid RC evaluated.Enclosures made are considered. Inparticular, it shown that unable toprovide complete information electricallylarge enclosure same material. Moreover,this...

A dual-band printed log-periodic dipole array (LPDA) antenna for wireless communications, designed on a low-cost PET substrate and implemented by inkjet-printing conductive ink, is presented. The proposed can be used communications both within the UHF (2.4–2.484 GHz) SHF (5.2-5.8 frequency bands, presents good out-of-band rejection, without need of stopband filters. has been using general-purpose 3-D computer-aided design software (CAD), CST Microwave Studio, then realized. Measured results...

A microstrip-to-waveguide transition has been realized for radio astronomy applications, designed to operate in the Q-band (33–50 GHz). As part of an array frequency (RF) receiver, main requirement such a is reduction transverse space occupation integration entire receiver chain, so in-line configuration developed. Moreover, high band implies that easy fabrication critical if good match between two guiding structures be obtained desired (with relative bandwidth 40%). The combination CAD...

MRI can favor clinical diagnosis providing morphological and functional information of several neurological disorders. This paper deals with the problem exploiting both data, in a combined way, to develop tool able support clinicians study Alzheimer’s Disease (AD). In this work, 69 subjects from ADNI open database, 33 AD patients 36 healthy controls, were analyzed. The possible existence relationship between brain structure modifications altered functions controls was investigated performing...

Abstract The design of a microwave irradiated enzyme (biochemical) reactor is here presented. It consists suitable higher‐order mode resonant cavity which contains several tubes where the solution containing reagents and products flow in laminar regime. process evolution under irradiation has then been simulated using COMSOL multiphysics environment. As an example, enzymatic hydrolysis reaction sucrose considered. results simulation show that such can be used to effectively perform optimal...

The new space economy paradigm demands for cost-effective systems its development. Plastic CubeSats are appealing candidates. To enable the use of this generation systems, challenge designing suitable communication sub-systems must be faced. In work, a 3D-printed ABS antenna easily embeddable in plastic CubeSat is proposed. material has been characterized terms dielectric, mechanical and thermal properties, compliance with requirements assessed. particular, thermogravimetric calorimetric...