Search results for "Ribs"
showing 4 items of 14 documents
Automatic segmentation of the spine by means of a probabilistic atlas with a special focus on ribs suppression. Preliminary results
2015
Spine is a structure commonly involved in several prevalent diseases. In clinical diagnosis, therapy, and surgical intervention, the identification and segmentation of the vertebral bodies are crucial steps. However, automatic and detailed segmentation of vertebrae is a challenging task, especially due to the proximity of the vertebrae to the corresponding ribs and other structures such as blood vessels. In this study, to overcome these problems, a probabilistic atlas of the spine, including cervical, thoracic and lumbar vertebrae has been built to introduce anatomical knowledge in the segmentation process, aiming to deal with overlapping gray levels and the proximity to other structures. F…
Effetti di urbanizzazione e cambiamenti climatici sui deflussi a scala di bacino
2016
Fra le pressioni di natura antropica agenti sui bacini idrografici, particolare rilevanza hanno sia la progressiva perdita di suoli naturali in favore di suoli poco, o per nulla, permeabili (es. strade, edifici, parcheggi, etc.) che la regimazione e regolazione dei deflussi sulla rete di drenaggio naturale mediante interventi idraulici. In particolare, l’ultima relazione sullo stato dell’ambiente europeo a cura dell’Agenzia Europea dell’Ambiente (AEA, 2010) considera l’impermeabilizzazione dei bacini naturali come uno dei maggiori processi di degrado del suolo. L’aumento del grado di urbanizzazione dei bacini naturali, inteso come aumento della frazione impermeabile del suolo derivante dell…
Identitātes problēmas un trimdas diskurss Tahara Ben Dželuna romānos
2015
Darbs pēta Magribas (Ziemeļāfrikas) tautu - marokāniešu, alžiriešu un tunisiešu identitātes problēmas imigrācijas kontekstā, un analīzē ar šo tēmu saistītus marokāniešu rakstnieka Tahara Ben Dželuna romānus. Pētījumā tiek izmantota literārā diskursa analīze, kurā ir iekļauta gan valodniecība, gan literatūrzinātne, gan kultūras un starpkultūru stūdijas. Mentalitāšu atšķirības, kas izpaužas reliģijas, kultūras un tradīciju jomā, kļūst par Ziemeļāfrikas izcelsmes imigrantu nespējības iemesli pilnīgi integrēties Francijas sabiedrībā. Tahars Ben Dželuns savos romānos raksturo šo fenomēnu kā trimdu, kuras veids var atšķirties un ir atkarīgs no cilvēka dzīves pieredzes un uztveres. Ben Dželuna rom…
DEM-resolution control on rainfall-triggered landslide modeling within a triangulated network-based model
2019
Catchment slope distribution significantly controls rainfall-triggered landslide modeling, in both direct and indirect ways. Slope directly determines the soil volume associated with instability. Indirectly, it affects the subsurface lateral redistribution of soil moisture across the basin, which in turn determines the water pore pressure conditions that impact slope stability. It is thus clear that the accuracy in reproducing slope distribution may be crucial in slope stability analysis. The resolution of the Digital Elevation Model (DEM) regulates the description of the topography. The correlation between raster resolution and landslide model outputs has been investigated in the literatur…