1,721,058 research outputs found
Stratigraphy of Late Quaternary deposits of northern Po Plain and its influence on vertical soil movement in the Mantua area
No full textAnalysis and evaluation of the performance of a productive line subjected to improvement decision
No full textUna tecnica di simulazione è stata utilizzata per valutare le prestazioni di una linea di stampaggio a freddo per bulloni ed effettuare delle decisioni di lavoro e gestione in ordine al miglioramento della produttività.
Dopo aver scelto gli obiettivi, sono stati individuati i sistemi di analisi, l’insieme dei dati di operatività della linea di produzione, una sintesi del sistema e un modello logicico-matematico con il software orientato agli oggetti Simple++.
Il modello è stato verificato e i test di simulazione sono stati eseguiti per differenti configurazioni, in modo da scegliere la migliore soluzione
Stratigraphic control on earthquake-induced liquefaction: A case study from the Central Po Plain (Italy)
No full textStudies on earthquake-induced liquefaction tied to high-resolution stratigraphic analysis have been rarely undertaken. We report the results of a multidisciplinary study from the Quistello–Moglia area, in the central Po Plain (northern Italy). In this region, combined stratigraphic, sedimentological, geotechnical, and geochemical data allowed assessment of liquefaction potential and identification of the primary source for liquefaction, following the second main shock (Mw ~ 6) of the 2012 Po Plain earthquake. Using Cone Penetration Test (CPT)-based simplified procedures for liquefaction hazard evaluation, we assessed the highest liquefaction potential of Holocene, fluvial-channel and related (crevasse/levee) fine sand-silt facies encased in thick, mud-prone floodplain and swamp successions. The liquefaction potential, and the intensity of the manifestations induced on the ground surface, decreased for the vertically-amalgamated, sheet-like Pleistocene sandy fluvial units encountered at depths greater than 13 m. Floodplain and swamp deposits were virtually non-liquefiable. In the Quistello area, the compositional characterization of sands that were liquefied and extruded during the 2012 earthquake reveals the diagnostic geochemical fingerprint of sediment carried by the Po River, as opposed to the Apennine composition of surficial sediments. These data rule out proximity of liquefied layers to the surface, and attest the buried, meandering Po River system at depths of ~ 7–10 m most likely representing the source for the liquefied sand that vented to the surface. Similarly, at Moglia, liquefied sands were likely sourced from loose and saturated, ribbon-shaped, fluvial sand bodies encased in mud, though at shallower (4–7 m) depths. Pronounced liquefaction phenomena in alluvial plain systems are commonly believed to be associated primarily with elongate topographic ridges following paleo-river courses. Here, we document that under favorable stratigraphic conditions liquefaction may also occur away from surficial channel–levee systems, in areas dominated superficially by overbank fines. Combining subsurface stratigraphic analysis with geotechnical data, thus, is critical to investigate liquefaction patterns and delineate liquefaction hazard zones
Acoustic features of Red deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest (NE Italy, 2001-2002).
Full text linkDescription of acoustic features of Red deer (Cervus elaphus) stags vocalizations in the Cansiglio Forest provides evidence of individual features to be used to recognize individuals
Lake Sebino (Lombardia): morphometry and geological setting through multibeam batymetry and high resulution seismic profiles.
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
I primi 10 mesi di registrazione della stazione geofisica ipogea del Bus de la Genziana (1000VTV) - Pian Cansiglio
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