901 research outputs found
Asymptotic Analysis of a Cucker–Smale System with Leadership and Distributed Delay
No full textWe extend the analysis developed in Pignotti and Reche Vallejo (J Math Anal Appl 464:1313–1332, 2018) [34] in order to prove convergence to consensus results for a Cucker–Smale type model with hierarchical leadership and distributed delay. Flocking estimates are obtained for a general interaction potential with divergent tail. We analyze also the model when the ultimate leader can change its velocity. In this case we give a flocking result under suitable conditions on the leader’s acceleration
'On-farm' seed priming: an ecological & sustainable disease management strategy
No full textThe dataset contains the results from a series of germination and seedling vigour tests for two barley cultivars subjected to different soaking times. The dataset also contains weight and seed respiration measurements during seed soaking. This data was used in the Seed Science Research paper "Using seed respiration as a tool for calculating optimal soaking times for ‘on-farm’ seed priming of barley (Hordeum vulgare)", Carrillo-Reche, Newton & Quilliam (2021). In the manuscript, we show how seed respiration principles, previously utilised for the study of seed germination, can be used as an effective tool to rapidly find cultivar- and seed quality-specific optimal seed priming duration without the need for a cumbersome series of germination assays and mini-plot trials (current practice). It provides a greater understanding of physiological events and pre-germinative process of barley seed during priming (e.g. energetic and metabolic activity), and links them to their invigorating benefits. The mechanistic of these invigorating effects, i.e. timing and contribution of their drivers, are discussed in detail against the current knowledge.(1.) ESM0. Cover-page.docx (2.) ESM1. Germination and desiccation tests.xlsx - Spreadsheet containing raw data from measurements during priming, and seed performance results from germination and desiccation test.
ESM2. Seedling vigour test.xlsx - Spreadsheet containing seedling performance results from a series of seedling vigour tests
Leis e planos urbanos na produção da cidade: o caso de Chapecó, SC
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Urbanismo, História e Arquitetura da CidadeO presente trabalho discute a relação entre as Leis e Planos Urbanos e a organização espacial das cidades. Para isso, desenvolve a análise do Plano de Desenvolvimento Urbano de Chapecó, no Oeste de Santa Catarina, da metade da década de 70 e da Lei de Zoneamento aprovada no início da década de 80. O estudo objetiva compreender, à luz das condições sociais, políticas, econômicas de cada período, que tipo de repercussões espaciais essas Leis e Planos provocaram no espaço urbano de Chapecó, identificando seu papel como indutor de transformações urbanas no município, aliados aos interesses dos demais agentes urbanos, principalmente do capital agroindustrial. Sendo assim, a partir do estudo de um caso concreto relacionando os Planos e Leis Urbanas e sua proposta de intervenção em uma realidade urbana determinada, o trabalho contribui para a discussão dos alcances, limites, potencialidades e, principalmente, as repercussões espaciais atribuídas aos Planos e Leis Urbanas no espaço urbano, dando maior ênfase aos aspectos da distribuição sócio-espacial da população. The present work discusses the relationship between the Urban Laws and Plans and the spatial organization of the cities. For this, it develops the analysis of the Urban Development Planning of Chapecó, in the West of Santa Catarina, from the half of the 70´s and the approved Zoning Law at the beginning of the 80´s. The study aims to understand what kind of spatial consequences these Laws and Plans had provoked in the urban space of Chapecó, considering the social conditions, politics and economy of each period, identifying its roll as an inductive agent of urban transformations in the city, along with the interests of others urban agents, mainly the agroindustrial capital one. This way, from the study of a concrete case relating the Plans and Urban Laws and its proposal of intervention in a determined urban reality, the work contribute for the discussion of the reach, limits, potentialities and, mainly, the spatial consequences attributed to the Plans and Urban Laws in the urban space, putting more emphasis on the aspects of the partner-spatial distribution of the population
Al-Andalus. Estudio e interpretación de la cultura y sociedad hispanomusulmana
No full textReche Gutiérrez, J. (2011). Al-Andalus. Estudio e interpretación de la cultura y sociedad hispanomusulmana. Universitat Politècnica de València. https://riunet.upv.es/handle/10251/15278Archivo delegad
Desarrollo de un entorno práctico sobre direccionamiento estático y dinámico basado en equipos Cisco
No full textEl proyecto que se expone muestra de una forma muy clara, sencilla y guiada como configurar routers de la compañía Cisco Systems, entrando en temas de enrutamiento IP, además de uno de más alto nivel como la seguridad, configurando listas de acceso.Serrano Reche, J. (2010). Desarrollo de un entorno práctico sobre direccionamiento estático y dinámico basado en equipos Cisco. https://riunet.upv.es/handle/10251/18368.Archivo delegad
Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae)
No full textReche, Vanina, Gallardo, Fabiana (2022): Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae). Journal of Natural History 56 (1-4): 227-239, DOI: 10.1080/00222933.2022.2064249, URL: http://dx.doi.org/10.1080/00222933.2022.206424
Gesta Romanorum
No full textEste volumen de versos constituye la primera traducción al español de una obra de Giovanni Raboni, uno de los poetas italianos más importantes de la segunda mitad del siglo XX. Y además supone la puesta en escena en un solo volumen del puzzle que supuso su primer libro, Gesta Romanorum. El volumen se compone de los textos canónicos y de un cuantioso apéndice que reúne los textos que en su día formaron parte de GR, pero que nunca acompañaron a estos de manera exenta; una noticia inesperada, por lo tanto, también para el lector italiano
One-side heating test and modeling of tubular receivers equipped with turbulence promoters for solar tower applications
No full textTubular receivers in central tower systems suffer the high mechanical stresses caused by the temperature gradient typically established along the tube and across its circumference due to the one-side heating. In the present work, the thermal behavior of three different absorber tubes is investigated both experimentally and numerically. The tubes, manufactured in Cr alloy 718 (Inconel®), were smooth or with repeated rib-roughness (annular or helical ribs), and were tested at the solar furnace SF60 of the Plataforma Solar de Almería (PSA) in 2017 within the international access program of SFERA II project, financed by the EU. The specific focus of the tests was the assessment of the role of turbulence promoters in reducing the peak wall temperature when a strong one-side heating is present, contributing to the reduction of the thermal gradients between the irradiated and the non-irradiated (back) side of the tube. The experimental results show that the use of turbulence promoters reduce the wall temperature with respect to the case of a smooth tube, as expected, although the comparison between the samples is not trivial in view of the change in the optical properties induced by the progressive oxidation of the irradiated surface. Computational Fluid Dynamic (CFD) 3D models have been developed for the three samples and they have proven the capability to very-well reproduce the experimental results. A fair comparison between the different simulated tubes in the same controlled conditions of one-side heating has been performed numerically, assessing quantitatively the temperature reduction induced by the turbulence promoters, and the best performance of the Inconel® tube equipped with helices
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