Search results for "Textile"
showing 10 items of 158 documents
Experimental investigation on the effectiveness of basalt-fibre strengthening systems for confining masonry elements
L’impiego di materiali compositi per il rinforzo di colonne in muratura è diventato una pratica ampiamente diffusa nel corso degli ultimi decenni. Questa tecnica, che consiste generalmente nell’applicazione di materiali polimerici fibrorinforzati (Fibre Reinforced Polymer-FRP), ha mostrato buone potenzialità, essendo in grado di garantire notevoli incrementi di resistenza e duttilità dell’elemento rinforzato, grazie ad un’azione di confinamento passivo. Tuttavia, l’impiego di compositi a matrice polimerica presenta alcuni limiti legati soprattutto alle prestazioni delle resine epossidiche, che a causa della loro natura sintetica danno luogo a problemi di compatibilità con il supporto murari…
Constitutive Models for the Tensile Behaviour of TRM Materials: Literature Review and Experimental Verification
2021
In recent years, the scientific community has focused its interest on innovative inorganic matrix composite materials, namely TRM (Textile Reinforced Mortar). This class of materials satisfies the need of retrofitting existing masonry buildings, by keeping the compatibility with the substrate. Different recent studies were addressed to improve the knowledge on their mechanical behaviour and some theoretical models were proposed for predicting the tensile response of TRM strips. However, this task is complex due to the heterogeneity of the constituent materials and the stress transfer mechanism developed between matrix and fabric through the interface in the cracked stage. This paper present…
Impact of fabric end-use knowledge on handle perception
2006
Abstract The objective was to determine whether the knowledge of the fabrics' end-use may impact the way textile experts organize their haptic perception. Two groups of 10 textile experts were asked to freely sort the same set of 25 fabrics in two different contexts. The first group was informed that the set of fabrics would be used to make dresses and the other one that they would be used to make sportswear. Both groups also rated the appropriateness of each fabrics for each end-use. Results did not show any effect of the end-use context. The two perceptual spaces were basically the same and accounted for appropriateness of use similarly. If confirmed, this result indicates that descriptiv…
Assessment of Arundo donax Fibers for Oil Spill Recovery Applications
2019
In the last years, natural fibers are increasingly investigated as an oil recovery system in order to overcome the oil spillage phenomena, thus preserving environment and aquatic life. In particular, lignocellulose-based fibers have recently been employed with promising results. In such a context, the aim of this paper is to assess the oil sorption capability of natural fibers extracted from the stem of the giant reed Arundo donax L., a perennial rhizomatous grass belonging to the Poaceae family that grows naturally all around the world thanks to its ability to tolerate different climatic conditions. Sorption tests in several pollutants and water as a reference were carried out. The fibers …
The benedictine church and monastery of Santa Maria Maddalena of Corleone. Works of art and documents
2019
Il lavoro esamina le diverse fasi di costruzione della chiesa e del complesso monastico di santa Maria Maddalena di Corleone, importante centro dell’entroterra siciliano, soffermandosi in particolare all’età moderna. Le inedite fonti archivistiche indagate oltre ad individuare le maestranze impegnate nei lavori fanno emergere importanti artisti. Successivamente si passa all’individuazione delle opere d’arte sacra ancora esistenti mai indagate scientificamente e raccolte insieme per la prima volta. This work examines the different phases of construction of the church and the monastic complex of Santa Maria Maddalena of Corleone, an important centre in the Sicilian hinterland, focusing in par…
The Many-Voiced Factory Community
2018
Maria Vanha-Similä 2017. Yhtiöön, yhtiöön! Lapsiperheiden arki Forssan tehdasyhteisössä 1950–1970-luvuilla. [To the firm, to the firm! The everyday life of families who worked in the Forssa textile industry from the 1950s to the 1970s.] Kansatieteellinen Arkisto 58. Helsinki: The Finnish Antiquarian Society. 250 pp. Diss. ISBN 978-952-6655-05-5 (print). ISBN 978-952-6655-06-2 (electronic). ISSN 0355-1830.
Determinantes industriais da solidariedade transnacional: política intersindical global em três setores
2014
Introdução: Oaumento da concorrência global prejudica o poder dos sindicatos pois enfraquece seu controle sobre a competição no mercado de trabalho. Os sindicatos, por vezes, combatem essa ameaça mediante cooperação além das fronteiras nacionais. Apesar do interesse crescente por atividades sindi - cais transnacionais, existem poucas comparações sistemáticas entre setores. Este artigo compara exemplos de cooperação transnacional de sindicatos na indústria automotiva, no transporte marítimo e na indústria têxtil e de vestuário. Argu - mentamos em seguida que os sindicatos adotam diferentes tipos de estratégias internacionais por causa de: (1) diferentes manifestações da competição entre trab…
Cutinases: Characteristics and Insights in Industrial Production
2021
Cutinases (EC 3.1.1.74) are serin esterases that belong to the α/β hydrolases superfamily and present in the Ser-His-Asp catalytic triad. They show characteristics between esterases and lipases. These enzymes hydrolyze esters and triacylglycerols and catalyze esterification and transesterification reactions. Cutinases are synthesize by plant pathogenic fungi, but some bacteria and plants have been found to produce cutinases as well. In nature they facilitate a pathogen’s invasion by hydrolyzing the cuticle that protects plants, but can be also used for saprophytic fungi as a way to nourish themselves. Cutinases can hydrolyze a wide range of substrates like esters, polyesters, triacylglycero…
On the use of Digital Image Correlation (DIC) for evaluating the tensile behaviour of BFRCM strips
2019
Abstract. Fibre Reinforced Cementitious Matrix (FRCM) composites are becoming largely adopted for retrofitting masonry structures. These materials offer several advantages in comparison to Fibre Reinforced Polymer (FRP) composites, such as good resistance to fire and high temperatures, vapour permeability, possibility to be applied on wet surfaces, higher compatibility with the masonry substrate. However, the tensile behavior of FRCM materials is more complex compared to FRP composites, due to the limited tensile strength of the cement-based matrix. For this reason, FRCM materials require appropriate tensile characterization and, in this context, the use of non-conventional measurement syst…
Disruptores endocrinos utilizados en la industria textil-confección en España
2009
Artículos originales [ES] Introducción: Los disruptores endocrinos son sustancias químicas que pueden alterar el sistema hormonal. Estas sustancias se utilizan en distintos procesos de la industria del textil-confección. Objetivos: Identificar las sustancias con efectos de disrupción endocrina utilizados en la industria del textil y la confección en España para prevenir la exposición de los trabajadores a estas sustancias. Material y métodos: En el estudio participaron 65 empresas de siete comunidades autónomas, seleccionadas mediante acuerdo entre las organizaciones empresariales y sindicales del sector. Técnicos de salud laboral de las federaciones sindicales visitaron las empresas partic…