Search results for "textil"
showing 10 items of 173 documents
The impact of cotton geotextiles on soil and water losses from Mediterranean rainfed agricultural land
2010
High soil erosion risk of Mediterranean cultivated soils is due to steep slopes, high rainfall intensities and low vegetation cover. Traditional land management as ploughing and herbicides give rise to high soil erosion rates. This paper reports on the use of a cotton geotextiles to control soil and water losses on agricultural land under Mediterranean climatic conditions. Eight paired plots (1, 2, 4 and 16 m2) were studied during 1-year period under natural rainfall. Forty rainfall simulations under wet and dry climatic conditions, and water drop penetration time (WDPT) tests, were carried out in order to analyze the effect of a geotextile on soil and water losses on a typical rainfed orch…
Experimental investigation on a geocontainer submerged reef
2014
Geotextile sand containers (GSC) have been used as permanent construction elements in coastal works for more than 20 years,becoming more and more popular as an alternative to the most typical coastal structures. Aim of this work is to analyze the hydrodynamic, stability and morphodynamic response of a GSC submerged reef by means of an experimental campaign. The first investigated aspect concerned the hydrodynamics. The reflection and transmission coefficients for regular and random waves were determined: the reflection coefficient decreases with increasing of kh; the transmission coefficient decreases with the increase of the incident wave. As regards the stability of the structure, it was …
L'ornementation des bracelets de l'âge du Bronze européen : analyse descriptive et perspectives
2013
This paper discusses the ornamental patterns of metal bracelets worn on the arms and legs of people during the European Bronze Age. A method has been specially created to study geometric patterns. Some sets of metal bands (bracelets métalliques) of Bronze Age reach a high level of complexity due to the use of combined patterns in an overall structure. This paper deals with an experimental criterion concerning this phenomenon. The methodology, developed for the purpose i.e. the experimental criterion developed for the purpose of this study, was to extract geometric patterns from the original media. The principle is to release the geometrical compositions of the deformations induced by the mo…
Occupation and Risk of Non-Hodgkin Lymphoma and Its Subtypes: A Pooled Analysis from the InterLymph Consortium
2016
Background: Various occupations have been associated with an elevated risk of non-Hodgkin lymphoma (NHL), but results have been inconsistent across studies. Objectives: We investigated occupational risk of NHL and of four common NHL subtypes with particular focus on occupations of a priori interest. Methods: We conducted a pooled analysis of 10,046 cases and 12,025 controls from 10 NHL studies participating in the InterLymph Consortium. We harmonized the occupational coding using the 1968 International Standard Classification of Occupations (ISCO-1968) and grouped occupations previously associated with NHL into 25 a priori groups. Odds ratios (ORs) adjusted for center, age, and sex were det…
Sobre trabajadoras textiles especializadas en el Egipto helenístico y romano
1999
Los papiros griegos del Egipto helenístico y romano y la amplia bibliografía que se ha ocupado del estudio de la economía y de la manufactura textil en el país del Nilo constituyen los dos puntos de partida para analizar la situación de la mujer que trabajó en esta rama de la produccción desde un enfoque profesional. Nuestra información, aunque abundante, se nos muestra bastante oscurecida por el uso generalizado del masculino genérico cuando se habla de los profesionales del tejido.
Is an anarchist business organization possible? Textile firms in the industrial district of Alcoi during the Spanish Civil War (1936-39)
2019
espanolDurante la Guerra Civil Espanola, en el lado republicano, estallo una revolucion social, liderada por los trabajadores y sus sindicatos que termino en muchos lugares en un proceso de colectivizacion empresarial. En la ciudad de Alcoi, el sindicato anarquista tomo el control de mas de 100 empresas textiles familiares, pasando por un proceso de racionalizacion que unifico la produccion de todas las empresas textiles para superar una crisis de produccion anterior y atender la demanda de guerra. ?El caso de Alcoi durante la Guerra Civil demuestra la posibilidad de una organizacion empresarial anarquista exitosa? Este articulo trata de comprender el desarrollo de los negocios sin una orga…
Sīkās motorikas attīstības sekmēšana 5 - 6 gadus veciem bērniem darbā ar tekstilmateriāliem
2022
Darba autore: Ilona Miķelsone Darba zinātniskais vadītājs: Māra Urdziņa-Deruma Darba mērķis: teorētiski un praktiski izzināt 5 - 6 gadīgu bērnu sīkās motorikas attīstības sekmēšanas iespējas, darbā ar tekstilmateriāliem. Darbs sastāv no divām daļām, teorētiskās daļas un empīriskā pētījuma. Teorētiskajā daļā tika analizētas pedagogu un psihologu atziņas par sīkās motorikas jēdziena būtību. Par sīkās motorikas attīstības nozīmi 5 – 6 gadus veciem bērniem un tās attīstības īpatnībām. Teorētiskajā daļā tika izzinātas sīkās motorikas attīstības iespējas izmantojot tekstilmateriālus. Empīriskajā daļā tika izstrādāti sīkās motorikas vērtēšanas kritēriji un veikta bērnu pedagoģiskā novērošana. Tika…
Modular Paradigm for Composites: Modeling Hydrothermal Degradation of Glass Fibers
2021
Fiber-reinforced composite materials are often used in structural applications in humid, marine, and offshore environments. Superior mechanical properties are compromised by environmental ageing and hydrolytic degradation. Glass fibers are the most broadly used type of fiber reinforcement to date. However, they are also most severely affected by environmental degradation. The glass fiber degradation rates depend on: (1) glass formulation; (2) environmental factors: pH, T, stress; (3) sizing; (4) matrix polymer; (5) fiber orientation and composite layup. In this short review (communication), seven modules within the Modular Paradigm are reviewed and systematized. These modeling tools, encomp…
Jute bioblanket as a soil rehabilitation strategy in Sorocaba, Brazil: Soil chemistry and SWOT approaches
2019
Made available in DSpace on 2022-04-29T08:28:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-09-01 Soil erosion and the invasion of exotic plant species are major constraints to achieve sustainable development around the world. Currently, we find few products devoted concomitantly to combatting soil erosion as well as the establishment of unwanted exotic plants. In this paper, we introduce a new product, called herein a bioblanket, that protects the soil and impedes the establishment of exotic plant species. This product is of simple design, and to manufacture it, we use two biodegradable materials: jute tissue and grass wastes. We designed this product to combat soil erosion and …
Palabras tejidas: método y uso de un tesauro multilingüe de la seda
2021
El patrimonio europeo de la seda es un patrimonio integral que abarca tanto bienes materiales (telares, tejidos, hilos, etc.) como un importante patrimonio inmaterial lingüístico. Su importancia como patrimonio es indudable, pero aunque la seda ha tejido Europa y se sigue utilizando en numerosos contextos, la tejeduría tradicional está en riesgo por la pérdida gradual de artesanos que salvaguarden el conocimiento ancestral. Además, la seda sigue siendo relevante para las personas que experimentan conexiones vivas, personales y sociales con este patrimonio, el cual está vinculado a tantas historias de vida y relatos colectivos que ha generado numerosos vocablos propios. El modo en que se han…