Search results for "material"
showing 10 items of 32550 documents
Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potent…
2020
Authors of this work acknowledge funding from European Union`s Horizon 2020 Research and Innovation Program project under grant agreement No 768789.
Engineered surface waves in hyperbolic metamaterials
2013
We analyzed surface-wave propagation that takes place at the boundary between a semi-infinite dielectric and a multilayered metamaterial, the latter with indefinite permittivity and cut normally to the layers. Known hyperbolization of the dispersion curve is discussed within distinct spectral regimes, including the role of the surrounding material. Hybridization of surface waves enable tighter confinement near the interface in comparison with pure-TM surface-plasmon polaritons. We demonstrate that the effective-medium approach deviates severely in practical implementations. By using the finite-element method, we predict the existence of long-range oblique surface waves. This research was fu…
Clinical Behavior of Ceramic, Hybrid and Composite Onlays. A Systematic Review and Meta-Analysis
2020
A systematic review and meta-analysis was performed to analyze the survival of onlay restorations in the posterior region, their clinical behavior according to the material used (ceramic reinforced with lithium disilicate, conventional feldspathic ceramic or reinforced with leucite; hybrid materials and composite), possible complications, and the factors influencing restoration success. The systematic review was based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement, without publication date or language restrictions. An electronic search was made in the PubMed, Scopus, Embase, and Cochrane databases. After discarding duplicate publications and stu…
Preliminary Evaluation of Plasmix Compound from Plastics Packaging Waste for Reuse in Bituminous Pavements
2021
Finding an appropriate technical solution for reusing waste plastics is crucial for creating a circular plastic economy. Although mechanical recycling is the best option for recycling post-consumer plastics, some heterogeneous mixed plastics cannot be recycled to produce secondary material due to their very low properties. In this case, alternative routes should be considered in order to limit their disposal as much as possible. Therefore, in order to solve the environmental problems in the landfills of plastic waste recycling, and to improve the mechanical performance of bitumen for road pavement, the reuse of these post-consumer plastic wastes are preliminarily evaluated for the modificat…
ABBA, IKEA och köttbullar : kulturundervisningen i läroböckerna avsedda för årskurs sju i B-svenska
2014
Tutkimuksemme tarkoituksena on selvittää, kuinka ruotsalainen kulttuuri Ruotsissa ja Suomessa esitellään seitsemännen luokan B-ruotsin oppikirjoissa. Lisäksi tarkastelemme, eroavatko oppikirjojen tavat esittää kulttuuria toisistaan sekä vertailevatko kirjat näitä kahta kulttuuria keskenään. Selvitämme myös noudattavatko oppikirjat nykyisen opetussuunnitelman asettamia tavoitteita kulttuurin suhteen. Tutkimusaineistonamme ovat oppikirjat Megafon 1 (2012) ja Pågång 7 (2011). Jaoimme kulttuurielementit yhdeksään eri kategoriaan, jotka ovat1) musiikki, 2) kirjallisuus, 3) elokuvat, 4) urheilu, 5) maantieto ja historia, 6) yhteiskunta ja arkielämä, 7) ruoka, 8) juhlat ja perinteet ja 9) muut. Tu…
Workshop Ricioc Made in Sicily/Nuove forme per il cioccolato di Modica.
2008
Quality-control procedure for dry-process rubberised asphalt mastics
2019
Crumb Rubber (CR) can be incorporated into asphalt mixes via the dry process by directly adding CR into the mixer together with other asphalt mixture’s components, or with the wet process where the CR is used as a bitumen modifier. While the wet process allows an accurate monitoring of the interaction between CR and bitumen, the lack of control represents a main issue in the dry process. In fact, in the latter the CR particles keep swelling during hauling and possibly also after paving operations, often causing workability issues and premature failures. This study wants to provide a methodology that could help quality control procedures of bitumen/filler/rubber systems during mixing, haulin…