Search results for "GB"
showing 10 items of 531 documents
Quantification of electrochromic kinetics by analysis of RGB digital video images
2018
A new, rapid, and practical procedure to obtain quantitative kinetic information of electrochromic materials is proposed. When the transition between two colors on a colored electrode surface is monitorized by digital video, the analysis of pixel color intensity (I) in sequential RGB digital images allows us to precise the half-life time (t1/2) of the color change since a maximum value of the standard deviation of the pixel intensity (σ(I)) is reached. We simulated and analyzed the evolution of standard deviation during an electrochromic transition in different circumstances (kinetic and diffusion control). As an example of application, electrochromic transitions of a thin film model, the P…
Criminologia Queer
2018
Il capitolo sottolinea i principali assunti di una criminologia queer — specificamente nel contesto anglo-americano — e considera alcune delle ragioni per le quali invece una criminologia queer ha incontrato ostacoli nel suo sviluppo nel contesto italiano, guardando in particolare alla genealogia biologista-positivista della disciplina e alle derive positivistiche di gran parte delle riflessioni del complesso sociocriminologico italiano. Comprende inoltre una ricognizione dei principali lavori di criminologia queer di produzione anglo-americana, delle (limitate) produzioni del contesto italiano e, per concludere, si esamineranno alcune delle critiche rilevanti che si sono sviluppate in risp…
Coloring Linear Algebra
2016
[EN] We present an example of how we can introduce basic concepts on Linear Algebra in a first course of an Engineering School. We use the RGB pattern color which allows us to decompose a color into three primary colors (namely, red, green, blue). By using this model we give a natural connexion between the additivity of the color decomposition and the notions on linear algebra (as vector space, linear combination and convex linear span of vectors). To visualize these connexions we use Geogebra.
Ricerca Unipa su diradamento e tasso di crescita dei frutti in piante di nespolo del Giappone
2022
Il trattamento di diradamento dei frutti di nespolo del Giappone, effettuato in una sola occasione, quando i frutti si trovano a circa il 30% delle loro dimensioni finali, ha mostrato alcuni effetti positivi: in primis, i frutti ottenuti in seguito a diradamento hanno una maggiore probabilità di ricadere nelle classi commerciali superiori, le quali sono in genere più apprezzate dai consumatori e pagate a un prezzo più alto al produttore; gli stessi frutti raggiungono al contempo anche un grado zuccherino più alto, altro indice del possibile gradimento del consumatore finale e della richiesta da parte del mercato. Questo lavoro preliminare apre le porte a nuovi studi volti alla valutazione d…
Estimating Grass Sward Quality and Quantity Parameters Using Drone Remote Sensing with Deep Neural Networks
2022
Funding Information: Funding: This research was funded by Academy of Finland ICT 2023 Smart‐HSI—“Smart hyper‐ spectral imaging solutions for new era in Earth and planetary observations” (Decision no. 335612), by the European Agricultural Fund for Rural Development: Europe investing in rural areas, Pohjois‐ Savon Ely‐keskus (Grant no. 145346) and by the European Regional Development Fund for “Cyber‐ Grass I—Introduction to remote sensing and artificial intelligence assisted silage production” pro‐ ject (ID 20302863) in European Union Interreg Botnia‐Atlantica programme. This research was car‐ ried out in affiliation with the Academy of Finland Flagship “Forest‐Human‐Machine Interplay— Buildi…
Assessment of Classifiers and Remote Sensing Features of Hyperspectral Imagery and Stereo-Photogrammetric Point Clouds for Recognition of Tree Specie…
2018
Recognition of tree species and geospatial information on tree species composition is essential for forest management. In this study, tree species recognition was examined using hyperspectral imagery from visible to near-infrared (VNIR) and short-wave infrared (SWIR) camera sensors in combination with a 3D photogrammetric canopy surface model based on RGB camera stereo-imagery. An arboretum with a diverse selection of 26 tree species from 14 genera was used as a test area. Aerial hyperspectral imagery and high spatial resolution photogrammetric color imagery were acquired from the test area using unmanned aerial vehicle (UAV) borne sensors. Hyperspectral imagery was processed to calibrated …
A new multimodal RGB and polarimetric image dataset for road scenes analysis
2020
International audience; Road scene analysis is a fundamental task for both autonomous vehicles and ADAS systems. Nowadays, one can find autonomous vehicles that are able to properly detect objects present in the scene in good weather conditions but some improvements are left to be done when the visibility is altered. People claim that using some non conventional sensors (infra-red, Lidar, etc.) along with classical vision enhances road scene analysis but still when conditions are optimal. In this work, we present the improvements achieved using polarimetric imaging in the complex situation of adverse weather conditions. This rich modality is known for its ability to describe an object not o…
Dissemination of wine-related yeasts by migratory birds.
2013
The present work was undertaken to evaluate the contribution of migratory birds in the environmental dissemination of yeasts. Four sites (Mazara del Vallo, Lampedusa, Ustica and Linosa), representing the main stop-over points in Sicily, were analysed during spring and autumnal bird migration and 349 birds (belonging to 10 families) were ringed and analysed for yeast presence. A total of 125 yeasts were isolated and identified by a multiple genotypic approach, consisting of restriction fragment length polymorphism (RFLP) of 5.8S rRNA gene and 26S rRNA and sequencing of D1/D2 domain of the 26S rRNA gene, which resulted in the recognition of 18 species, including the technological relevant Sac…
Symmetric Galerkin Boundary Element Metod for 3D analysis
1999
The mixed boundary value problem is dealt with by Galerkin approach in 3D linear elasticity via a system of boundary integral equations. This paper presents a method for computing a solving system coefficient made up of double surface integrals with hypersingular kernel. This method employs the Schwartz distribution theory in order to obtain the closed form of the first surface integration which represents the traction. The successive surface integration of the weighed traction having a kernel with logarithmic singularity uses known numerical techniques. This formulation requires C° continuity of shape functions modelling the source represented by the displacement discontinuity.
Frictionless contact formulation by mathematical programming technique
2011
The object of the paper concerns a consistent formulation of the classical Signorini's theory regarding the frictionless unilateral contact problem between two elastic bodies in the hypothesis of small displacements and strains. A variational approach, employed within the symmetric Boundary Element Method, leads to an algebraic formulation based on nodal quantities. The contact problem is decomposed into two sub-problems: one is purely elastic, and the other pertains to the unilateral contact condition alone. Following this methodology, the contact problem, faced with symmetric BEM, is characterized by symmetry and sign definiteness of the coefficient matrix, thus admitting a unique solutio…