Preconditioning sparse nonsymmetric linear systems with the Sherman-Morrison formula (2008)
R. Bru, J. Cerd Án, J. Mar Ín, J. Mas, Ax B
Abstract. Let Ax = b be a large, sparse, nonsymmetricsystem of linear equations. A new sparse approximate inverse preconditioning technique for such a class of systems is proposed. We show how the...
R. Bru, J Marín, J. Mas, R. Bru, J. Cerdn, J. Marn, ...
Shermam-Morrison formula In this work we consider the approximate inverse preconditioners AISM based on the Sherman-Morrison formula [1]. We will show some of theoretical properties of the factors of...
Experiencias de cátedra en las clases de física de primer curso de Escuelas Técnicas (2008)
We have performed a set of lecture room experiences in a Physics course at the Escuela Universitaria de Informática, of the Universidad Politécnica de Valencia; we have studied the effects produced...
Munoz-Berbel, X., Vigues, N., Jenkins, A. T. A., Mas, J., Munoz, F. J.
This paper describes an approach for quantifying low concentrations of bacteria, particularly Escherichia coli, based on the measurement of the initial attachment of bacteria to platinum surfaces,...
Munoz-Berbel, X., Vigues, N., Mas, J., Toby, A., Jenkins, A., Munoz, F. J.
This paper describes a new method for measuring the attachment of bacteria, specifically Escherichia coli on platinum electrodes using impedance spectroscopy. Impedance spectroscopy measurements...
Shear viscosity from R-charged AdS black holes (2006)
We compute the shear viscosity in the supersymmetric Yang-Mills theory dual to the STU background. This is a thermal gauge theory with a chemical potential. The quotient of the shear viscosity over...
Supersymmetric Intersections of M-branes and pp-waves (2003)
We study supersymmetric intersections of M2 and M5 branes with different pp-waves of M-theory. We consider first M-brane probes in the background of pp-waves and determine under which conditions the...
Synchronized Mpeg-7 Metadata Broadcasting (2003)
Over Dvb Networks, A. López, D. Gonzàlez, J. Fabregat, A. Puig, J. Mas, ...
As MPEG-7 gets extended, DVB systems find the need to transport metadata over MPEG-2. This paper gives a view of a real implementation in an MHP application framework of the amendment ISO/IEC 138181:...
The beta function of N=1 SYM in Differential Renormalization (2002)
Mas, J., Perez-Victoria, M., Seijas, C.
Using differential renormalization, we calculate the complete two-point function of the background gauge superfield in pure N=1 Supersymmetric Yang-Mills theory to two loops. Ultraviolet and...
Radioactivity of Phosphogypsum in South-West of Spain (1998)
Bolivar, J.P., Garcia-Tenorio, R., Mas, J.
Phosphogypsum is the by-product of producing phosphoric acid by reacting phosphate rock with sulphuric acid. In the south-west of Spain, and near the town of Huelva, there is a big industrial complex...
The Topography of $\W_\infty$-Type Algebras (1992)
Figueroa-O'Farrill, J. M., Mas, J., Ramos, E.
We chart out the landscape of $\Winfty$-type algebras using $\Wkpq$---a recently discovered one-parameter deformation of $\W_{\rm KP}$. We relate all hitherto known $\Winfty$-type algebras to $\Wkpq$...
Figueroa-O'Farrill, J. M., Mas, J., Ramos, E.
The KP hierarchy is hamiltonian relative to a one-parameter family of Poisson structures obtained from a generalized Adler map in the space of formal pseudodifferential symbols with noninteger...
On the two-boson picture of the KP hierarchy (1992)
Figueroa-O'Farrill, J. M., Mas, J., Ramos, E.
A two-boson realization of the second hamiltonian structure for the KP hierarchy has recently appeared in the literature. Furthermore, it has been claimed that this is also a realization of the...
Robledano Aymerich, Francisco, Calvo Sendín, José Francisco, Esteve Selma, Miguel Ángel, Mas, J., Palazón Ferrando, José Antonio, Súarez Alonso, Maria Luisa, ...
Robledano Aymerich, Francisco, Calvo Sendín, José Francisco, Esteve Selma, Miguel Ángel, Mas, J., Palazón Ferrando, José Antonio, Súarez Alonso, Maria Luisa, ...
Robledano Aymerich, Francisco, Calvo Sendín, José Francisco, Esteve Selma, Miguel Ángel, Mas, J., Palazón Ferrando, José Antonio, Súarez Alonso, Maria Luisa, ...
Robledano Aymerich, Francisco, Calvo Sendín, José Francisco, Esteve Selma, Miguel Ángel, Mas, J., Palazón Ferrando, José Antonio, Súarez Alonso, Maria Luisa, ...
Robledano Aymerich, Francisco, Calvo Sendín, José Francisco, Esteve Selma, Miguel Ángel, Mas, J., Palazón Ferrando, José Antonio, Súarez Alonso, Maria Luisa, ...
Research and dynamics of small-scale fisheries in the region of Murcia (1991)
Mas, J., Martinez Bano, P., Vizuete, F.
En Murcie, dans le sud-est de l'Espagne, quatre grande confréries de pêcheurs (Cofradias de Pescadores) gèrent l'essentiel des captures et de la flotte artisanale. Leur contribution à l'ensemble...
Considérations méthodologiques sur la pêche aux petits métiers dans la Méditerranée espagnole (1991)
Caminas, J.A., Lleonart, J., Mas, J., Oliver, P.
Four research projects are currently underway in Mediterranean Spain : in Catalonia, Valencia, the Balearic Islands and in Andalucia. The methods being used include three stages : description and...
Study of the leptonic decays of the Z0 boson (1990)
Aarnio, Pertti A, Abreu, P, Adam, W, Adami, F, Adrianos, P, Adye, T, ...
Search for long-lived and penetrating new particles in 300 GeV/c pi- interactions (1990)
Badier, J, Bemporad, C, Boucrot, J, Callot, O, Charpentier, P, Cnops, A M, ...
Direct photon pair production from pions and protons at 200 GeV/c (1990)
Badier, J, Bardadin-Otwinowska, Maria, Bemporad, C, Bienvenu, H, Boucrot, J, Bourotte, J, ...
Mass and lifetime limits on new long-lived particles in 300 GeV/c pi- interactions (1990)
Badier, J, Bemporad, C, Boucrot, J, Callot, O, Charpentier, P, Cnops, A M, ...
Direct photon production from pions and protons at 200 GeV/c (1990)
Badier, J, Bardadin-Otwinowska, Maria, Bemporad, C, Berthon, U, Bienvenu, H, Boucrot, J, ...
Direct photon production from negative and positive pions and protons at 200 GeV/c (1990)
Badier, J, Bardadin-Otwinowska, Maria, Bemporad, C, Berthon, U, Bienvenu, H, Boucrot, J, ...
Inclusive high p$_{T}$ pi0 production from pi$\pm$ and protons at 200 GeV/c (1990)
Badier, J, Bardadin-Otwinowska, Maria, Bemporad, C, Berthon, U, Bienvenu, H, Boucrot, J, ...
Study of hadronic decays of the ZO boson (1990)
DELPHI Collaboration, Aarnio, PA, Abreu, P, Adam, W, Adami, F, Adrianos, P, ...
Study of the leptonic decays of the ZO Boson (1990)
DELPHI Collaboration, Aarnio, PA, Abreu, P, Adam, W, Adami, F, Adrianos, P, ...
The DELPHI detector at LEP (1990)
DELPHI Collaboration, Aarnio, PA, Abie, H, Abreu, P, Adam, W, Adrianos, P, ...
Topologías fuertes en espacios linealmente topologizados de funciones continuas (1989)
Ferrer, J. R., López Pellicer, Manuel, Mas, J., Sánchez Ruiz, L. M.
El tarro blanco, Tadorna tadorna en el SE español (1987)
Calvo, J. F., Castanedo, J. L, García Giménez, F.J., Ibañez, J.M., Mas, J., Robledano Aymerich, Francisco, ...
El Tarro blanco (Tadorna tadorna) es una de las especies de anátidas más representativa de las zonas húmedas del sureste español, y la única numéricamente importante en algunas de ellas. En la...
Mas, J, Pedrós-Alió, C, Guerrero, R
Procaryotic microorganisms accumulate several polymers in the form of intracellular inclusions as a strategy to increase survival in a changing environment. Such inclusions avoid osmotic pressure...
This article describes a novel method for the measurement of light absorption by cultures of phototrophic microorganisms. The rate of light absorption is calculated as the difference between the rate...
Description of a Redox-Controlled Sulfidostat for the Growth of Sulfide-Oxidizing Phototrophs
Sanchez, O., Van Gemerden, H., Mas, J.
This paper describes a novel type of continuous culture for the growth of phototrophic sulfur oxidizers under constant concentrations of hydrogen sulfide. The culture maintains a constant...
Stroke and atrial fibrillation: is stroke prevention treatment appropriate beforehand?
Deplanque, D, Corea, F, Arquizan, C, Parnetti, L, Mas, J, Gallai, V, ...
OBJECTIVE—To undertake a pilot study before conducting a large European multicentre prospective study, to determine the proportion of patients with atrial fibrillation who were not receiving...
Survey of blindness and visual impairment in Bioko, Equatorial Guinea
Moser, C L, Martín-Baranera, M, Vega, F, Draper, V, Gutiérrez, J, Mas, J
Aims: This study was designed to estimate the prevalence of blindness and its main aetiologies in Bioko, an onchocerciasis endemic zone of Equatorial Guinea.
Ranoux, D, Gury, C, Fondarai, J, Mas, J, Zuber, M
Objectives: Botulinum toxin type A is a potent neuromuscular paralyzing agent used in various disorders including cervical dystonia. Two preparations of botulinum toxin are now commercially available...
Spinal cord infarction: clinical and magnetic resonance imaging findings and short term outcome
Masson, C, Pruvo, J, Meder, J, Cordonnier, C, Touze, E, ...
Background: Most studies on spinal cord infarction have been conducted in single centres; they usually consisted of case reports, or of larger series of patients recruited over a large period of...