Search results for "REY"

Rūdolfs Blaumanis, the Dreyfus Affair and the Anglo-Boer War: Colonial difference and identity construction infin-de-siècleLatvian society

2017

This article offers an insight into the social and cultural scene in Latvia at the end of the nineteenth century. The territory of this Baltic state was then still part of the Russian Empire, divided among several of its provinces. However, this was also a period when the cultural aspirations of the rising Latvian middle class were represented by the gradual attempts to raise the self-esteem of the entire local population. The article focuses on the role that Latvian writer Rūdolfs Blaumanis (1863–1908) played in encouraging Latvians to understand themselves as a self-confident people during the fin-de-siècle period. The first part examines articles published by Blaumanis in the Latvian pre…

Chemical composition and antimicrobial activity of the essential oils of some species of Anthemis sect. Anthemis (Asteraceae) from Sicily

2017

The chemical composition of the essential oils isolated from the aerial parts of Anthemis arvensis L. subsp. arvensis, Anthemis cretica subsp. messanensis (Brullo) Giardina & Raimondo and from flowers and leaves of Anthemis cretica subsp. columnae (Ten.) Frezén were determinated by GC–FID and GC–MS analyses. Torreyol (85.4%) was recognised as the main constituent of the Anthemis arvensis subsp. arvensis essential oil, while in the essential oils of Anthemis cretica subsp. messanensis, collected on the rock and cultivated in Hortus Botanicus Panormitanus, (E)-chrysanthenyl acetate (28.8 and 24.2% resp.), 14-hydroxy-α-humulene (8.1 and 5.3% resp.), santolina triene (8 and 5.8% resp.) and …

Application of a non linear local analysis method for the problem of mixed convection instability

2007

Abstract We consider the problem of laminar mixed convection flow between parallel, vertical and uniformly heated plates where the governing dimensionless parameters are the Prandtl, Rayleigh and Reynolds numbers. Using the method based on the centre manifold theorem which was derived from the general theory of dynamical systems, we reduce a three-dimensional simplified model of ordinary differential amplitude equations emanating from the original Navier-Stokes system of the problem in the vicinity of a trivial stationary solution. We have found that when the forcing parameter, the Rayleigh number, increases beyond the critical value Ra s , the stationary solution is a pitchfork bifurcation…

Rey propietario o rey soberano

1994

La soberanía del rey en Ámerica.

The Eradication of Poliomyelitis in Spain: Projects, Obstacles, Achievements, Realities

2015

he main aim of our paper is to provide a historical approach to the complex process undertaken in Spain to achieve the official WHO certificate of polio eradication in 2002, within the framework of the initiatives launched in the WHO European Region. At the time of the first meeting of the European Regional Commission for the Certification of Poliomyelitis Eradication in 1996, the epidemiological situation and levels of vaccination cover (over 90%) enabled Spain, like other countries, to ensure compliance with the conditions set by the World Health Organization. This showed that the country, at the end of the twentieth century, had achieved high public health standards, which is remarkable …

García Hurtado, Manuel Reyes (ed.): El siglo XVIII en femenino

2017

Photocatalytic ozonation under visible light for the remediation of water effluents and its integration with an electro-membrane bioreactor

2018

Abstract Photocatalysis and photocatalytic ozonation under visible light have been applied for the purification of a complex aqueous matrix such as the grey water of Masdar City (UAE), by using N-doped brookite-rutile catalysts. Preliminary runs on 4-nitrophenol (4-NP) solutions allowed to test the reaction system in the presence of a model pollutant and to afford the relevant kinetic parameters of the process. Subsequently, the remediation of grey water effluent has been evaluated in terms of the reduction of total organic carbon (TOC) and bacterial counts. The concentration of the most abundant inorganic ionic species in the effluent has been also monitored during reaction. Photocatalytic…

An ecological dynamics framework for the acquisition of perceptual-motor skills in climbing

2016

Uncertainty in extreme sports performance environments, like rock and ice climbing, provides considerable psycho-emotional and physiological demands which challenge the acquisition of perceptual-motor skills. An ecological dynamics theoretical framework adopts concepts and tools of nonlinear dynamics and ecological psychology to investigate and model the relationships that emerge in extreme sports between athletes and their performance environments. In this relation, the interactions of athletes with key objects, surfaces, events and significant others during a sport like climbing emerge from interdependent personal, task and environmental constraints on performance. Performance behaviours …

New Computational Fluid Dynamic Procedure to Estimate Friction and Local Losses in Coextruded Drip Laterals

2007

The design of trickle irrigation systems is crucial to optimize profitability and to warrant high values for the emission uniformity (EU) coefficient. EU depends on variation of the pressure head due to head losses along the lines and elevation changes, as well as the water temperature, and other parameters related to the emitters (manufacturer's coefficient of variation, number of emitters per plants, emitter spacing). Trickle irrigation plants are usually designed using small diameter plastic pipes (polyethylene or polyvinyl chloride). The design problem, therefore, needs to consider head losses along the lines as well as emitter discharge variations due to the manufacturer's variability.…

CFD simulations of dense solid–liquid suspensions in baffled stirred tanks: Prediction of solid particle distribution

2013

Abstract Industrial tanks devoted to the mixing of solid particles into liquids are often operated at an impeller speed N less than Njs (defined as the lowest speed allowing the suspension of all particles): under such conditions the distribution of solid-particles is very far from being homogeneous and very significant concentration gradients exist. The present work is devoted to assessing the capability of Computational Fluid Dynamics (CFD) in predicting the particle distribution throughout the tank. The CFD model proposed by Tamburini et al. [58] and successfully applied to the prediction of the sediment amount and shape was adopted here to simulate the particle distribution under partia…