Search results for "camp"
showing 10 items of 1995 documents
Multi-Chip RFID Antenna Integrating Shape-Memory Alloys for Detection of Thermal Thresholds
2011
Low-cost wireless measurement of objects' temperature is one of the greatest expectation of radiofrequency identification technology for the so many applications in cold supply-chain control and safety assessment in general. In this context, the paper proposes a dual-chip UHF tag embedding shape memory alloys (SMA) able to transform the variation of the tagged item's temperature into a permanent change of antenna radiation features. This event-driven antenna is hence able to selectively activate the embedded microchips according to the temperature above or below a given threshold. A general design methodology for the resulting two-ports tag antenna is here introduced and then applied to pro…
Presència virtual de les universitats andaluses
2009
En aquest article exposarem de manera específica les iniciatives portades a terme en les universitats andaluses per fomentar, reforçar i estendre la seva presència virtual a la xarxa. Farem un recorregut pels serveis inculats amb la tecnologia i suport a l'ensenyament, els campus i aules virtuals presents en cadascuna d'aquestes universitats, així com pels esforços realitzats per La xarxa d'Universitats Virtuals Andaluzas per a la creació i desenvolupament del Campus Virtual Andaluz del qual formen part totes les universitats andaluses a través d'una àmplia oferta d'activitats d'ensenyament en línia.
Espace culturel, territoire et terroir : approches spatiales des groupes campaniformes récents dans le sud-est de la France
2000
In south-eastern France, the récent Bell-Beaker culture is marked by the presence of a regional Rhône-Provence group having complex relationships with other régional Bell-Beaker and regional final Neolithic groups. The analysis from a spatial point of view and at different levels (cultural space, territory, land) leads to a better knowledge of prehistoric geography and also to raises other questions, such as chronology, history of populations and socio-economic models.
Una sociologia delle imposture legittimate. La costruzione del campo giuridico
2017
Il saggio introduttivo alla traduzione de «La forza del diritto» di Pierre Bourdieu definisce il profilo intellettuale e la cassetta degli attrezzi dell'autore e ricostruisce gli assunti teorici alla base della sua sociologia del campo giuridico. The introductory essay to the translation of Pierre Bourdieu's "The Force of Law" defines the author's intellectual profile and toolbox and reconstructs the theoretical assumptions underlying his sociology of the legal field.
Costruire o de-costruire il campo / Constructing or de-constructing the field
2013
Il saggio riflette sulla costruzione dell'oggetto della ricerca e sulla nozione di fieldwork
Fabrication and Characterization of Dye-Sensitized Solar Cells
2014
Among the next-generation solar cells, a predominant role is played by Dye sensitized solar cells (DSSC) based on ruthenium complexes as sensitizers. They take advantage of a photoelectrochemical system to transform solar radiation into electric energy. In fact, DSSCs represent a cost-effective alternative to traditional silicon-based photovoltaic devices and they do not require expensive and sophisticated apparatus for their fabrication. In this work, we have produced and tested ruthenium DSSCs. In particular, we have measured the main parameters of these cells, such as the electrical and power performances and the efficiency levels, at different irradiance levels and at different incident…
Photoelectric valuation of highly efficient Dye-Sensitized Solar Cells
2015
Nowadays, a growing demand for free and clean energy requires the study and the development of new low-cost solar photovoltaic (PV) cells. Among them, Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes as sensitizers are assuming a great importance. The DSSCs under study are composed placing in succession a transparent conductive glass on which is screen-printed a mesoporous TiO2 thin film sensitized by a ruthenium based dye (N719) , an electrolytic solution containing a redox couple (I-/I3-) and another conductive glass covered by a thin transparent catalyst platinum film. In this work, we have measured the main photoelectrochemical parameters of the above mentioned DSSCs at d…
Light Soaking measurements on Ruthenium-based Dye Sensitized Solar Cells
2016
An interesting phenomenon occurring in Dye Sensitized Solar Cells (DSSCs) when exposed to an uninterrupted period of illumination is the so-called light soaking effect, which consists in the increase of the main electrical parameters of the cell, such as the photocurrent and the efficiency. Studying such an effect has noteworthy practical implications, ranging from the optimization of the manufacturing process to stability tests of DSSCs. In this paper, we present an experimental investigation on the performance variation, due to light soaking, of Ruthenium-based DSSCs.
Characterization of Ruthenium-based Dye-Sensitized solar cells
2015
In this paper, we measure the main photoelectrical parameters of Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes at different irradiance levels, incident wavelengths, temperatures and hours of light soaking.