1,721,729 research outputs found
La "fattoria didattica" come manifestazione di turismo scolastico in ottica relazionale: una proposta di business definition
No full textLa "fattoria didattica" come manifestazione di turismo scolastico in ottica relazionale: una proposta di business definition
No full textThe "didactic farm" as a demonstration of school tourism from a relational point of view: an aim of business definition
No full textThe article suggests different items to define the tourist service of didactic farm; moreover it compares the didactic farm with other similar services, such as: agriturism, rural tourism, ethnographic museum, etc
Advanced modeling of liquid movements in automotive fuel tanks
No full textA complex activity is taking place to enhance design and validation of automotive fuel tanks. It includes track tests, a new bench tests and fluid-dynamic simulations. The target is to prevent issues with vapor pressure build up and fuel spill to vapor canister, operating as early as possible in the design process. CFD simulations have been used to assess the accuracy of bench tests compared to road tests and the work goes on to perform predictive analysis.
A new test bench has been developed, based on FIAT specification and experience, which allows to simulate vehicle accelerations using a combination of tank motion and tilt on all axes. Numerical tests have been performed which confirms the validity of the test approach. Accelerometric measurements have confirmed the substantial equivalence.
Additional numerical analyses have been performed to explore fluid dynamic inside the tank, targeted to evolve the CFD approach into a design validation and optimization tool
Rock fall analysis in an Alpine area by using a reliable integrated monitoring system. Results from the Ingelsberg slope (Salzburg Land, Austria)
No full textThe present work illustrates the monitoring system of the Ingelsberg slope (Bad Hofgastein, Austria), which hosts one of the most dangerous landslides in the Salzburg Land. It is a rock fall, which can be considered as representative of landslides commonly occurring in the Alpine area. During the monitoring campaign (March 2013–July 2014), a rock fall occurred at the end of April, 2013 that involved 20–40 m 3 of rocks. The comparison of surface measurements (by Ground-Based Interferometric Synthetic Aperture Radar—GB-InSAR) with measurements in depth (by extensometers) allowed the understanding of the failure process of the rock mass. Data are discussed taking into account meteorological conditions antecedent to the landslide triggering, indicating that factors such as rapid snow melting (added to first spring rainfall events) and rock thermal dilatation are very important in slopes located far below the permafrost line
Morphology of the salivary glands of three Squamata species: Podarcis sicula sicula, Tarentola mauritanica and Coluber viridiflavus
No full textThe histology, histochemistry and ultrastructure of the salivary glands of three species of squamata, Podarcis sicula sicula (mandibular glands), Tarentola mauritanica (sublingual gland) and Coluber viridiflavus (supra- and infralabial glands) were studied. Each gland contained acidic cells, positive for both periodic acid Schiff and Alcian blue reactions. These cells can be distinguished as seromucous and mucous types based on the different electron density of their granules. α-Amylase, until now detected only in mammalian salivary glands, was not found in any of the salivary glands examined. The ultrastructural study revealed that the salivary glandular cells of T. mauritanica lack intercellular canaliculi, which by contrast, are present between the seromucous cells in the salivary glands of C. viridiflavus and P.s. sicula. Comparable variation is also seen when the ultrastructural features of the secretory granules in salivary glands of the three Squamata species are compared. The salivary granules of T. mauritanica and C. viridiflavus are more or less dense but structureless, while the mucous granules of P.s. sicula have a distinctive and characteristic substructure. Therefore, this study, designed to obtain comparative data on the histology, histochemistry and ultrastructure of the salivary glands of three representative, but hitherto unstudied, species of Squamata, reveals great variation in the structure of these glands within the Squamata lineage, even when compared to previously documented species
Utilità di un mezzo di contrasto in ultrasonografia nella valutazione di fenomeni infiammatori articolari: confronto con risonanza magnetica senza e con mdc
No full text- …
