S(P)EEDKITS & smart packaging. Nuove applicazioni tessili per ridefinire la risposta alle emergenze

Il saggio traccia una visione d'insieme di S(P)EEDKITS, un progetto di ricerca co-finanziato dall'Unione Europea nell'ambito del Programma Quadro FP7 e, in particolare, si concentra sulle attività in corso da parte del Politecnico di Milano (POLIMI) sui due diversi fronti del Design Industriale e della Tecnologia dell'architettura. L'ambito della progettazione dei nuovi kit di pronto intervento e ricostruzione in situazioni di disastro delinea una nuova frontiera per la Tecnologia dell'architettura, che si trova a coniugare la tradizionale vocazione della progettazione di componenti con le ricerche innovative sui tessili tecnici e sulle costruzioni leggere

MULTITEXCO - high performance smart multifunctional technical textiles for tensile structures

In recent years, the textile industry developed a new generation of advanced textile materials for the construction sector designed to address the needs of one of the largest markets for textile products. Examples of the advanced textiles developed include fabrics for the rehabilitation of buildings, geotextiles for the consolidation of a wide range of soil structures and the high performance technical textiles for tensile structures. When combine with innovative sensors the fabrics provide an useful tool for the constant monitoring of the structures and can be used to record the mechanical performance or detect anomalies in the expected use of the structures by measuring applied loads, deformations, operating temperatures or other important parameters. This work highlights recent advances in sensor embedded textiles for structural health monitoring of tensile structures. Attention is paid on ease of application, integration in the textile and the use of established and relatively low cost sensing methodologies. The real innovation lies therefore in transferring these methods to unexplored technological fields for smart textiles such as tensile structures

Plasma Emission Redistribution in a Single Cylce of a Pulsed DC Magnetron

Time-resolved images of the optical emissions from a pulsed dc titanium target planar rectangular sputtering magnetron plasma were taken using Argon spectral filters and a Roper Scientific ICCD camera with a time resolution of 0.05-0.2 μs. At the beginning of the \u27on-time\u27, when the power is turned on, the discharge initially starts preferentially in two opposite curved sections (\u27cross corners\u27) of the magnetron race track, where it exhibits the most intense plasma emissions. During the rest of the \u27on-time\u27, the emissions from the straight sections of the race track of the magnetron are always slightly more intense than the emissions from the curved sections of the race track. This pattern extends into the start of the \u27off-time\u27, when the power is turned off. In an effort to explain this \u27plasma emission redistribution (PER)\u27 effect, we used a Monte Carlo (MC) approach to simulate the optical emissions from our pulsed dc magnetron plasma. The simulation reproduces the PER effect, which can be linked to the specific electric (E) and magnetic (B) field spatial distributions and electric field distribution temporal variations in conjunction with the electron E x B drift

The Herschel Virgo Cluster Survey: VII. Dust in cluster dwarf elliptical galaxies

We use the Science Demonstration Phase data of the Herschel Virgo Cluster Survey to search for dust emission of early-type dwarf galaxies in the central regions of the Virgo Cluster as an alternative way of identifying the interstellar medium.We present the first possible far-infrared detection of cluster early-type dwarf galaxies: VCC781 and VCC951 are detected at the 10 sigma level in the SPIRE 250 micron image. Both detected galaxies have dust masses of the order of 10^5 Msun and average dust temperatures ~20K. The detection rate (less than 1%) is quite high compared to the 1.7% detection rate for Hi emission, considering that dwarfs in the central regions are more Hi deficient. We conclude that the removal of interstellar dust from dwarf galaxies resulting from ram pressure stripping, harassment, or tidal effects must be as efficient as the removal of interstellar gas.Comment: Letter accepted for publication in A&A (Herschel special issue

Ocrelizumab versus Interferon Beta-1a in Relapsing Multiple Sclerosis

Supported by F. Hoffmann–La Roche

Concepts parodontaux de la contention en orthopédie dento-faciale

Parmi les préoccupations parodontales de l'orthodontiste, les auteurs pensent que le praticien doit plus particulièrement porter son attention vers le parodonte marginal lors du traitement orthodontique, alors que le parodonte profond fera l'objet de soins plus attentifs lors de la période de contention. Pour les auteurs, la contention post-orthodontique doit contraindre la dent à une position statique pendant un certain temps ; cette contention mécanique doit être complétée par une contention biologique et fonctionnelle pour faciliter la réparation tissulaire parodontale et la réintégration fonctionnelle de la dent