Search results for "ONCE"
showing 10 items of 4997 documents
Uno strumento virtuale per il monitoraggio e il controllo di un impianto fotovoltaico a concentrazione
2014
In questa memoria si presenta una sintesi delle attività condotte nell'ambito del progetto SERPICO ("Sviluppo E Realizzazione di Prototipi di Inverter per impianti fotovoltaici a Concentrazione", PO-FESR Sicilia 2007-2013, Misura 4.1.1.2). Il progetto ha riguardato lo sviluppo di un prototipo di impianto fotovoltaico-termico a concentrazione e del relativo sistema di monitoraggio e controllo. Tale sistema permette di acquisire le quantità sia elettriche che termiche. Inoltre esso implementa un algoritmo per l'inseguimento solare utilizzato per ottimizzare la produzione di potenza.
Revista electrónica de investigación y evaluación educativa
2016
El Programa para la Evaluación Internacional de Alumnos (PISA) proporciona un marco en el que más de 80 países colaboran para construir métricas globales avanzadas para explorar los conocimientos, habilidades y atributos del estudiantado. El diseño de las evaluaciones plantea importantes desafíos conceptuales y técnicos, como el éxito del aprendizaje. Más allá de una base conceptual sólida, PISA necesita cumplir una serie de exigencias a veces contradictorios. Los/as administradores de escuelas, autoridades normativas y los docentes deben ser capaces de utilizar esta información de la evaluación para determinar cómo crear mejores oportunidades para el aprendizaje de los estudiantes. Las eva…
Influence of the “learning relation” on experimental skills in physics: fluid pressure
2015
International audience
Slow Populations and Tourism
2013
Our initial perspective is that the dynamics of territories and cities/towns that are tourist resorts (or aspire to being one) can be analysed from the point of view of the ‘population’ concept, dear to a certain trend in socio-spatial analysis. Our chapter concentrates particularly on those who, by need or will, pass through places without their own vehicle, but using collective or public transport, as well as walking or cycling, rather than by walker or wheelchair. These ‘slow populations’ enter into a relation with the places they visit or stay at, with the people who live there and the other tourists, following certain methods of which we suggest a sort of classification, aimed at a bet…
A PC-based instrument for automatic monitoring and control of a CPVT power plant
2014
A PC-based instrument has been developed for the monitoring and control of a concentrated photovoltaic and thermal (CPVT) power plant. The instrument allows acquiring both electrical and thermal quantities. Moreover it implements the solar tracking algorithm used to optimize the power production.
Aristóteles entre doxografía y biografía: sobre Diógenes Laercio V 31
2019
Se pretende llamar la atención sobre un par de frases que aparecen justo hacia la mitad de la controvertida doxografía de Aristóteles que se puede leer en las Vidas y doctrinas de los filósofos más ilustres de Diógenes Laercio V 31, y que desde luego no corresponden a ningún sistema doxográfico conocido. Como sucede no pocas veces en la obra laerciana, la misma apreciación sobre si el filósofo debe o no enamorarse y contraer matrimonio se repite idéntica en otras doxografías completamente distintas: la cirenaica (DL II 91), la estoica (DL VII 129) y la epicúrea (DL X 118). Cabe plantearse, pues, el origen de este interés, en varias doxografías, por la vida sentimental, podríamos decir, de l…
Study of social self-concept invariance in physical activity individual and collective practitioners
2019
Este estudio tiene como objetivo explorar la invariancia configural, métrica y escalar en función del sexo y de la práctica de actividad física colectiva del AUSO de Fernández-Zabala et al. (2016) y comparar las puntuaciones obtenidas por los subgrupos. La muestra fue de 278 estudiantes universitarios (M = 21. 16 años; DT = 19. 238) divididos de forma equivalente en función del género y de la práctica de actividad física. Tras comprobar la invariancia estricta en ambos supuestos, los resultados demuestran que no existen diferencias significativas en ninguno de los factores en función del sexo, pero sí en función de la práctica de actividad física: aquellos estudiantes que realizan actividad…
Exploring human rights conceptualisations in the United States : a study into knowledge and attitudes of participants connected to a social justice N…
2016
Natt, Sharon. 2016. Exploring Human Rights Conceptualisations in the United States: A study into knowledge and attitudes of participants connected to a social justice NGO. University of Jyväskylä. Department of Education. Concepts of human rights are present within our social, global and geo-political frameworks, yet their understandings are subject to infinite influences and interpretations. This localised and exploratory study importantly addresses a gap in previous research by investigating such conceptualisations against the backdrop of the United States. Centring on knowledge and attitudes, it focuses specifically on US participants with a connection to a social justice NGO. Representa…
Testing a new sampler for measuring plot soil loss
2016
In order to measure soil loss in equipped plots the estimate of the weight of solid material intercepted at their lower end is required. At the experimental area of Sparacia, Sicily, the runoff produced by an erosive event is collected within storage tanks with a capacity of about 1m3. In this paper, the use of a new sampler is proposed to measure easily the weight of solid material eroded from an experimental plot and collected into a storage tank. The sampler is a cylinder having a closing valve at the bottom. Two different series of runs were carried out both to test the reliability of the sampler and to establish a sampling procedure, respectively. An analysis of various sampling config…
Role of land set-up systems on soil (physicochemical) conditions
2020
Land reclamation and drainage networks represent one of the most ancient human modifications of the Italian soilscape, where tailored land set-up systems were developed in agro- and forestecosystems in three millennia of man’s activity. Most of once manually maintained land settings are currently scarcely working or even disappeared because of the cost needed for their maintenance and the advent of mechanization that have simplified the field organization. The scarce attention to the soil experienced in the last decades, has accelerated soil erosion and flooding events, which entailed high costs in terms of money and human lives, but also caused reduction of soil thickness, water holding ca…