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Wyszukujesz frazę "Lisco, S." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Texture and composition of the Rosa Marina beach sands (Adriatic coast, southern Italy): a sedimentological/ecological approach
Autorzy:
Moretti, M.
Tropeano, M.
van Loon, A. J.
Acquafredda, P.
Baldacconi, R.
Festa, V.
Lisco, S.
Mastronuzzi, G.
Moretti, V.
Scotti, R.
Powiązania:
https://bibliotekanauki.pl/articles/94295.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
source-area reconstruction
grain-size analysis
mineralogical composition
image analysis
coastal erosion
texture
composition
beach sands
Rosa Marina
Adriatic coast
southern Italy
rekonstrukcja obszaru źródłowego
analiza wielkości ziarna
skład mineralogiczny
analiza obrazu
erozja wybrzeża
tekstura
skład
piasek plażowy
wybrzeże Adriatyku
południowe Włochy
Opis:
Beach sands from the Rosa Marina locality (Adriatic coast, southern Italy) were analysed mainly microscopically in order to trace the source areas of their lithoclastic and bioclastic components. The main cropping out sedimentary units were also studied with the objective to identify the potential source areas of lithoclasts. This allowed to establish how the various rock units contribute to the formation of beach sands. The analysis of the bioclastic components allows to estimate the actual role of organisms regarding the supply of this material to the beach. Identification of taxa that are present in the beach sands as shell fragments or other remains was carried out at the genus or family level. Ecological investigation of the same beach and the recognition of sub-environments (mainly distinguished on the basis of the nature of the substrate and of the water depth) was the key topic that allowed to establish the actual source areas of bioclasts in the Rosa Marina beach sands. The sedimentological analysis (including a physical study of the beach and the calculation of some statistical parameters concerning the grain-size curves) shows that the Rosa Marina beach is nowadays subject to erosion.
Źródło:
Geologos; 2016, 22, 2; 87-103
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of functional methods for human movement modelling
Autorzy:
Gastaldi, L.
Lisco, G.
Pastarelli, S.
Powiązania:
https://bibliotekanauki.pl/articles/307058.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
analiza funkcjonalna
analiza ruchu
modelowanie
kinematyka
functional analysis
motion analysis
human modelling
joint kinematics
Opis:
Purpose: accurate assessment of human joint parameters is a critical issue for the quantitative movement analysis, due to a direct influence on motion patterns. In this study three different known functional methods are experimentally compared to identify knee joint kinematics for further gait and motion analysis purposes. Methods: taking into account the human knee physiology complexity, within its roto-translation, the study is conducted on a lower limb mechanical analogue with a polycentric hinge-based kinematic model. The device mimics a joint with a mobile axis of rotation whose position is definable. Sets of reflective markers are placed on the dummy and flexion-extension movements are imposed to the shank segment. Marker positions are acquired using an optoelectronic motion capture system (Vicon 512). Results: acquired markers’ positions are used as input data to the three functional methods considered. These ones approximate the polycentric knee joint with a fixed single axis model. Different ranges of motion and number of markers are considered for each functional method. Results are presented through the evaluation of accuracy and precision concerning both misalignment and distance errors between the estimated axis of rotation and the instantaneous polycentric one, used as reference. Conclusion: the study shows the feasibility of the identification of joint parameters with functional approaches applied on a polycentric mechanism, differently from those usually conceived by the reviewed algorithms. Moreover, it quantifies and compares the approximation errors using different algorithms, by varying number and position of markers, as well ranges of motion.
Źródło:
Acta of Bioengineering and Biomechanics; 2015, 17, 4; 31-38
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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