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    Due canzoni di Monte Andrea

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    Edizione critica con commento di due canzoni del fiorentino Monte Andrea

    Monte Andrea. Poesie, edizione critica con commento

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    Edizione critica delle poesie di Monte Andrea, poeta fiorentino della seconda metà del '20

    The poems of Monte Andrea. A commented critical edition.

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    La tesi presenta l'edizione critica e commentata dell'intera produzione poetica di Monte Andrea, poeta fiorentino della seconda metà del '200.The thesis presents the commented critical edition of the complete poetical works of Monte Andrea, a Florentin poet of the second half of the thirteenth century

    In-vivo manipulation of muscle shape and tendinous stiffness affects the human ability to generate torque rapidly

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    What is the central question of this study? What are the determinants of the muscle belly gear, and how does it affect the torque rise? What is the main finding and its importance? Change in muscle thickness of the gastrocnemius medialis is related to variations in the belly gear. Belly gear shows a key role in the rise of the muscular torque and rate of torque development (RTD). Besides, the increase of the tendinous tissue stiffness could increase the torque rise as well, and in turn, the RTD. However, changes in the tendinous tissue stiffness showed no effects on muscle fascicle behaviour, suggesting a possible uncoupling between muscle and tendon mechanical properties

    Rites du dialogue courtois chez Monte Andrea

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    Perrus Claude. Rites du dialogue courtois chez Monte Andrea. In: Arzanà 9, 2003. Les voix multiples. Du conflit au dialogue, sous la direction de Claude Perrus et Marina Marietti. pp. 65-76

    Muscle and tendon stiffness and belly gearing positively correlate with rate of torque development during explosive fixed end contractions

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    We combined ultrafast-ultrasound with dynamometric measurements to assess the associations between muscle structural properties and the rate of torque development (RTD) during isometric explosive fixed-end plantar flexor contractions. The torque-time signal was recorded for the plantaflexor muscles in fifteen men and the peak value of RTD was obtained. Tendon stiffness (kT) and muscle stiffness (kM) of the Gastrocnemius Medialis (GM) were assessed during maximal isometric voluntary contractions (MVC) and quick release using ultrafast ultrasound (1000 Hz). During the explosive contraction, the GM geometrical changes were recorded and the belly gearing (belly velocity/fascicle velocity) was calculated. Pearson's correlation coefficient was used to assess the correlation between variables, whereas equality of correlation coefficients between RTD and kT and kM was tested by means of the Hotelling's statistics. During explosive contraction, kT was higher than kM (~55 and ~30 N⋅mm-1, respectively). RTD positively correlated with kM (r = 0.75, p < 0.001), kT (r = 0.58, p = 0.044) and belly gearing (r = 0.78, p < 0.001). However, Hotelling's test showed no significant differences between the correlation coefficients between RTD and muscle and tendon stiffness. Further, belly gearing was significantly positively correlated with kM only (r = 0.79, p < 0.001). Our data suggest that muscle and tendon stiffness are similarly associated with RTD. Given the association with belly gearing, muscle stiffness seems to play an important role in determining the muscle length changes, thereby affecting the muscle force transmission capacity during the transient phases

    La tenson avec le Dieu d’Amour de Monte Andrea

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    Bartuschat Johannes. La tenson avec le Dieu d'Amour de Monte Andrea. In: Arzanà 9, 2003. Les voix multiples. Du conflit au dialogue, sous la direction de Claude Perrus et Marina Marietti. pp. 77-91

    Development of an open source environment for the aero-structural optimization of wind turbines

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    An advanced open source optimization environment, for the design of Horizontal and Vertical Axis Wind Turbines, is hereby presented: several geometric parameters can be used as design variables while the proposed objective functions allow to run a multi-disciplinary study considering structural and aerodynamic analysis and the impact of the design on the total cost. In order to improve the performances of the considered wind turbine model, the airfoils can be parametrized in serveral ways and both in-house functions and open source tools are integrated in the optimization environment, based on DAKOTA. A BEM code evaluates the aerodynamic performances of the HAWT blades and it can be coupled with both FEM analysis and functions for the analysis of the cost of energy. The open source CFD code OpenFOAM has also been included, as a module, in the overall environment: a CFD analysis can be run in an completely automatic way, from the denition of the geometry, through the generation of the mesh and the solving phase to the post-processing analysis. The proposed optimization environment succeeded in improving the performances of both the considered Horizontal and Vertical Axis Wind Turbines in terms of structural, aerodynamic and cost objective functions
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