Search results for "Tale"
showing 10 items of 6428 documents
Nuove prospettive per l’arboricoltura da legno in Sicilia: la coltivazione del noce Pecan
2009
In funzione della promozione dell’arboricoltura da legno in Sicilia, vengono presentati i risultati di osservazioni condotte presso l’Orto botanico di Palermo, concernenti la coltivazione del noce pecan (Carya illinoensis). Essi vengono valutati positivamente anche in relazione alla crescita e alle caratteristiche del legno che potrebbe trovare localmente utile impiego.
A statistical monitoring approach for automotive on-board diagnostic systems
2007
The current generation of vehicle models are increasingly being equipped with on-board diagnostic (OBD) systems aimed at assessing the ‘state of health’ of important anti-pollution subsystems and components. In order to promptly diagnose and fix quality and reliability problems that may potentially affect such complex diagnostic systems, even during advanced development prior to mass production, some vehicle prototypes undergo a testing phase under realistic conditions of use (a mileage accumulation campaign). The aim of this work is to set up a statistical tool for improving the reliability of the OBD system by monitoring its operation during the mileage accumulation campaign of a new vehi…
A Generic Approach to Scheduling and Checkpointing Workflows
2018
This work deals with scheduling and checkpointing strategies to execute scientific workflows on failure-prone large-scale platforms. To the best of our knowledge, this work is the first to target fail-stop errors for arbitrary workflows. Most previous work addresses soft errors, which corrupt the task being executed by a processor but do not cause the entire memory of that processor to be lost, contrarily to fail-stop errors. We revisit classical mapping heuristics such as HEFT and MinMin and complement them with several checkpointing strategies. The objective is to derive an efficient trade-off between checkpointing every task (CkptAll), which is an overkill when failures are rare events, …
Some Considerations Regarding the Role and Importance of Talent Management
2018
The fact that human resources are an indispensable, vital resource, is unanimously accepted. Human resources enhance, improve the other resources and stand at the origin of all the performances of the company, of the achievement of its mission and goals. Every organization needs the right and talented people, specialists. Not only does an individual’s talent matter, it makes a difference. It is what grants more value to the company. Successful organizations are the ones that know how to find talented people, how to attract them, how to keep them and, particularly, how to enhance their talents.
Primeros resultados sobre variaciones del ambiente lumínico en el seno de varias comunidades vegetales
1988
Se caracterizan y tipifican 4 modelos de iluminación en el seno de comunidades vegetales pertenecientes a la serie reconstitutiva del encinar termófilo valenciano, Rubio longifoliae - Quercetum rotundifoliae Costa, Peris & Figuerola 1982. valenciano, Rubio longifoliae - Quercetum rotundifoliae Costa, Peris & Figuerola 1982. Para ello se analizan los niveles de rediación fotosintéticamente activa bajo cubierta de coníferas (pinus halepensis Miller), lauroides (Arbutus unedo L. y Viburnum tinus L.), frondosas perennifolias (Quercus rotundifolia Lam) y la combinación de grandes arbustos perennifolios (Pistacia lentiscus L.) y frondosas caducifolias (Fraxinus ornus L.) a 4 alturas de toma de da…
Colonization of eurasian jay Garrulus glandarius (L.) and holm oaks Quercus ilex (L.): the establishment of ecological interactions in urban areas.
2016
Here we describe the relationship between holm oak seedling diffusion and jay recolonization in an urban orchard.
Spectroscopic parameters related to non bridging oxygen hole centers in amorphous-SiO2
2005
The relationship between the luminescence at 1.9 eV and the absorption bands at 2.0 eV and at 4.8 eV were investigated in a wide variety of synthetic silica samples exposed to different gamma- and beta-ray irradiation doses. We found that the intensities of these optical bands are linearly correlated in agreement with the model in which they are assigned to a single defect. This finding allows to determine spectroscopic parameters related to optical transitions efficiency: the oscillator strength of the 4.8 eV results ~200 times higher than that of the 2.0 eV; the 1.9 eV luminescence quantum yield under 4.8 eV excitation is lower (by a factor ~3) than that under 2.0 eV excitation. These res…
Description of hysteresis of Nickel Metal Hydride Battery
2012
A Dynamic Preisach Model for the description of the hysteresis in Nickel Metal Hydride Battery is presented. Both the hysteresis and the dynamical features of charging and discharging cycles are described. The identification of the model is obtained by using a neural network technique developed for magnetic systems. The model is validated by some experimental tests on commercial batteries.
Radiation Response of Ce-Doped Phosphosilicate Optical Fibers
2014
International audience; We report an experimental study of the radiation effects on silica-based multimode optical fibers (OFs) either doped with Phosphorus or with Phosphorus and Cerium. Online Radiation-Induced-Absorption (RIA) measurements were performed in the UV-visible spectral domain under 10 keV X-ray Irradiation. Optical Absorption (OA) in the Near Infrared Region (NIR) and Electron Paramagnetic Resonance (EPR) measurements were also performed on γ-irradiated OFs.
Estimation des modèles dynamiques à erreurs composées avec autocorrélation par la méthode des variables instrumentales
1996
In this paper, we consider a dynamic error-components models with autocorrelated disturbances. We analyse the efficient estimation procedure of autocorrelation parameter and we try to find out whether moment conditions of a dynamic model without autocorrelation are valid when the model includes autocorrelation. We propose two efficient estimation methods of autocorrelation parameter in addition to Baltagi and Li (1994) estimator. We show that all moment conditions of a dynamic model without autocorrelation are not valid in dynamics errors-components models with autocorrelated disturbances.