Search results for "ECC"
showing 10 items of 2939 documents
Influence of the muscle mode of contraction on the exercise induced neuroplastic effects
2018
Along with cardiovascular and neuromuscular changes, mono-articular and locomotor exercises may induced neuroplastic changes from muscles involved, or non-involved, in the exercise. If the effect of exercise intensity or duration on neuroplastic changes has been previously investigated, the effect of the mode of muscle contraction remains unclear. The aim of this thesis was to investigate the effects of the mode of muscle contraction on neuroplastic changes induced a locomotor or a single-joint exercise. The first study showed that the increase in the corticospinal excitability of a non-exercised hand muscle, observed after a walking/ running exercise, was not modulated by the knee extensor…
Coupling Mechanics of Antikythera Gearwheels
2012
This paper discusses the gear coupling mechanics of the ancient Antikythera mechanism, among whose distinctive characteristics was the triangular shaping of the teeth. The engagement of the tooth pairs is analyzed in detail, estimating the temporal variation of the speed ratio due to the back and forth shifting of the relative instant center. The admissibility of the theoretical contact points is carefully checked, and the magnitude of the successive tooth collisions is calculated together with the energy losses arising from the particular nature of the coupling. Some interesting results are that only one tooth pair turns out to be active at each time instant and the real path may belong on…
Approximate Closed-Form Solutions for the Shift Mechanics of Rubber Belt Variators
2009
The mechanical behavior of V-belt variators during the speed ratio shift is different from the steady operation as a gross radial motion of the belt is superimposed to the circumferential motion. The theoretical analysis involves equilibrium equations similar to the steady case, but requires a re-formulation of the mass conservation condition making use of the Reynolds transport theorem. The mathematical model of the belt-pulley coupling implies the repeated numerical solution of a strongly non-linear differential system. Nevertheless, an attentive observation of the numerical diagrams suggests simple and useful closed-form approximations for the four possible working modes of any pulley, o…
Un mal paso
1998
A Km-scale Cretaceous slope in western Sicily (Italy)
2017
Cretaceous slopes are well known from many regions of the world, since they are among the most prone depositional systems to host hydrocarbons. As far as Italy, in spite of fully described examples as the Majella and Gargano escarpments, detailed sedimentological and biostratigraphic studies from Sicily are not available, although the presence of slope carbonates of Cretaceous age in northwestern Sicily, is mentioned in several papers dealing with regional geology or geological mapping. The Cretaceous slope carbonates from this area, i.e. the San Vito Lo Capo Peninsula, belong to several thrust sheets of the Maghrebian chain. The stratigraphic setting in these tectonic units allows to recon…
Les sites ecclésiaux et monastiques de l’archipel du Kvarner (Croatie), campagne 2018 : Mirine-Fulfinum (Omišalj, île de Krk)
2018
International audience
Archipel du Kvarner (Croatie). Prospection-inventaire des sites ecclésiaux et monastiques : campagne 2015
2016
International audience; Le programme de prospection-inventaire initié en 20101 est entré dans une nouvelle phase en 2015 avec le démarrage de la fouille programmée de la grande église du complexe de Martinšćica (île de Cres) du 29 juin au 18 juillet2. Dans le même temps, la poursuite des prospections a été à l’origine de la découverte d’une nouvelle église sur l’îlot de Mali Ćutin. Le troisième volet du programme a porté sur le site de Mirine-Fulfinum (île de Krk), du 19 au 30 octobre, avec la préparation du chantier de fouille dans le secteur dit de « l’église à trois absides ».
Les sites ecclésiaux et monastiques de l’archipel du Kvarner (Croatie)
2017
La campagne 2016 du programme de recherche sur les sites ecclésiaux et monastiques de l’archipel du Kvarner a essentiellement porté sur la fouille du petit complexe antique et médiéval septentrional du site de Mirine-Fulfinum – secteur dit de « l’église à trois absides » – (île de Krk), du 11 au 23 avril 2016, et sur la poursuite de la fouille de la grande église paléochrétienne du complexe de Martinšćica (île de Cres) du 27 juin au 14 juillet (fig. 1). Fig. 1 – Carte de l’archipel du Kvarner...
L-Band vegetation optical depth for crop phenology monitoring and crop yield assessment
2018
Vegetation Optical Depth (VOD) at L-band is highly sensitive to the water content and above-ground biomass of vegetation. Hence, it has great potential for monitoring crop phenology and for providing crop yield forecasts. Recently, the Multi-Temporal Dual Channel Algorithm (MT -DCA) has been proposed to retrieve L-band VOD from Soil Moisture Active Passive (SMAP) measurements. In previous research, SMAP VOD has been compared to crop phenology and has been used to derive crop yield estimates. Here, we review and expand these initial research studies. In particular, we quantify the capability of VOD to detect different crop stages, and test different VOD metrics (i.e., maximum, range and inte…
El primer marqués del Cenete: cultura y coleccionismo bibliográfico de un noble del Renacimiento
2019
El título escogido para este estudio abarca todos los objetivos que en él se plantean: la cultura y el coleccionismo a través de la biografía de Rodrigo de Mendoza, por un lado, y mediante el análisis y el estudio de su biblioteca, por otro, contextualizándolo con la evolución de los cánones literarios hasta la eclosión del humanismo y comparándolo con otras bibliotecas que bien podrían haber sido un ejemplo paradigmático entre los nobles castellanos (o quizás no), con el objetivo final de conseguir una visión general de la figura del marqués del Cenete no sólo desde la perspectiva histórica sino también –y sobre todo– de la cultural y literaria como referente del mecenazgo que, posteriorme…