1,721,143 research outputs found
Editorial to selected papers from the 2023 IMEKO International Conference on 'Metrology for Archaeology and Cultural Heritage' – part 1
No full textThis Special Issue collects the extended version of some of the contributions presented at the 2024 IMEKO International Conference on Metrology for Archaeology and Cultural Heritage, held in Rome (Italy) from the 19th to the 21st of October 2023. This international conference brought together experts with different expertise but united by the interest in the characterization and conservation of Cultural Heritage (CH)
Unmanned autogyro for mars exploration: A preliminary study
No full textStarting from the Martian environment, we examine all the necessary requirements for a UAV and outline the architecture of a gyroplane optimized for scientific research and support for (future) Mars explorers, highlighting its advantages and criticalities. After a careful trade-off between different vehicles suitable for a typical mission, some parameters are established to optimize the size and performance. In the second part, the project of the Spider gyroplane and the methodolog used to balance the longitudinal masses are presented; in the third part, the parameters of the aerodynamic forces acting on the aircraft are highlighted to be able to focus them during the fluid dynamics simulations
The LED’s spectrophotometry in precision agriculture: A brief survey
No full textPrecision agriculture is one of the research fields with the greatest development in recent years. Its target is to reduce the waste with the help of seeking methods that allow fruit and vegetables to be grown in a sustainable way by reducing the environmental impact of fertilizers, pesticides, water leaks and so on. To do that, many agricultural companies experiment specific scientific optical techniques as spectroscopy or fluorescence measurements. This permit to get interesting data on the health status of a plant or fruit/vegetable. In spectrophotometry, the use of LEDs has the advantage of using a light source at a certain wavelength which corresponds to the color of the light emitted and this can have various experimental advantages, which allow for rapid diagnostic analysis of the target without carrying out invasive measurements
Il piedibus: un esempio concreto di mobilità ecosostenibile in città
Full text linkLa nostra è una società che si ritrova a sognare il verde e l’aria pura, ma è malata di inquinamento. Un inquinamento che non tocca solo le aree industriali, i luoghi di lavoro non protetti, ma arriva a toccare le nostre città a causa delle polveri sottili, del particolato atmosferico e di altri veleni, divenendo un'arma di distruzione di massa. Tra le molteplici forme d'inquinamento vi è quello da traffico cittadino, dovuto all’uso diffuso degli automezzi per il trasporto urbano, soprattutto quello privato, che è causa di notevoli problemi per chi vive in città: inquinamento dell’aria con emissioni gassose e rumori nocivi per la salute dell’uomo e dell’ambiente, stress per
i conducenti, che dimostra la necessità di una corretta educazione ambientale.
Il miglioramento della qualità della vita nelle città è quindi strettamente conseguente al miglioramento dei trasporti che passa innanzi tutto attraverso un modo nuovo di pensare alla mobilità, unito all’utilizzo di tecnologie meno
inquinanti. Il progetto proposto insieme al presente lavoro, riguarda una pratica già diffusa nelle grandi città italiane, si chiama “Piedibus”, un approccio pratico al problema che riguarda e coinvolge i più piccoli e la loro vita reale, e che, rendendoli consapevoli del valore di questa pratica certamente rafforza le abitudini salutari . Il Piedibus consiste in un bus speciale, che ricava la sua energia e si muove grazie ai piedi dei suoi passeggeri: gli alunni, che vanno a scuola a piedi muovendosi autonomamente, senza però essere abbandonati a loro stessi, e senza che venga meno un positivo controllo di sicurezza, grazie alla presenza di “conducenti” e di “controllori” adulti. Si tratta di un’attività che responsabilizza i bambini nei confronti di se stessi, del gruppo e della città nella quale si vive
Autonomous Underwater Glider: A Comprehensive Review
Full text linkA comprehensive review of Autonomous Underwater Gliders encompasses their development, technological advancements, operational principles, and applications in various fields. It explores the different types of architectures, such as those with blended wing or conventional designs, and examines their roles in scientific research and civil use. The review also addresses the challenges and limitations in areas like payload, navigation, swarm management, and the effects of underwater environments on glider performance. This knowledge is essential for improving glider technology and expanding their potential in future underwater exploration and data collection missions
Precise takagi-sugeno fuzzy logic system for UAV longitudinal stability: An Industry 4.0 case study for aerospace
No full textIndustry 4.0 is making inroads even into the field of aerospace, which is extremely conservative due to the safety concerns involved with the introduction of new technology. We used fuzzy logic to create a very reliable simplification and reduce the complexity of the critical longitudinal stability equations for a flying wing drone. Our approximate method allowed us to have a very light calculation effort at the price of a negligible error in terms of the size and dynamics of the craft, thus reducing the work required by the telecommunication segment that manages the takeoff and landing manoeuvres
Limitazione sulla massa o sulla trasmittnza termica dinamica? Confronto tra il D.Lgs.vo n. 192 e il progetto di D.P.R. previsto nell'ambito delle linee guida nazionali per la certificazione energetica degli edifici
No full textEditorial to selected papers from the 2023 IMEKO International Conference on ‘Metrology for Archaeology and Cultural Heritage’ – part 2
No full textThe Via Severiana and the Tabula Peutingeriana: valuation of landmarks precision and town expansions
No full textThis work deals with the examination of the route of the Via Severiana, traced in the imperial period, from a historical and technical point of view. Then, results were compared with the Tabula, which we can consider one of the first synthetic representations of general viability. We have explored the development of the various sectors of the via Severiana, considering the various utility and presence on the territory, using the Tabula Peutingeriana as a benchmark. Subsequently, we have examined the precision of the positioning of the various landmarks along the via Severiana and the movement of the inhabited centers as a function of density. Modern technologies, including Geographic Information Systems and mathematical models, allow us to help the archaeologists to overlay ancient maps like the Tabula Peutingeriana onto contemporary maps, aiding in the identification of locations and understanding ancient landscapes
The Geodesic Base of Piombino: The Measurement of Italy under an Historical Point of View
No full textThe cartographic unification of the Italian peninsula with the Carta Topografica d’Italia used the important work done during the pre-unification period and the last years of the XIX century. After the territorial unity of 1870 (leaving aside the appendix of the unredeemed lands of the north-east annexed after the Great War), the vision of a wider space for movement and citizenship took shape. For this reason, it is important to guard the memory and safeguard of all trigonometric points, like geodetic base lines, witnessing in the country the long and hard measurement work
- …
