Listar Artículos de revista INAMAT2 - INAMAT2 aldizkari artikuluak por título
Mostrando ítems 381-400 de 410
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Uniform approximations of the first symmetric elliptic integral in terms of elementary functions
Bujanda Cirauqui, Blanca
; López García, José Luis ; Pagola Martínez, Pedro Jesús ; Palacios Herrero, Pablo (Springer, 2022)
Artículo / Artikulua 
We consider the standard symmetric elliptic integral RF(x, y, z) for complex x, y, z. We derive convergent expansions of RF(x, y, z) in terms of elementary functions that hold uniformly for one of the three variables x, y ... -
Uniform convergent expansions of integral transforms
López García, José Luis ; Palacios Herrero, Pablo ; Pagola Martínez, Pedro Jesús (American Mathematical Society, 2021)
Artículo / Artikulua
Several convergent expansions are available for most of the special functions of the mathematical physics, as well as some asymptotic expansions [NIST Handbook of Mathematical Functions, 2010]. Usually, both type of ... -
Uniform convergent expansions of the error function in terms of elementary functions
Ferreira González, Chelo; López García, José Luis ; Pérez Sinusía, Ester (Springer, 2023)
Artículo / Artikulua
We derive a new analytic representation of the error function erfz in the form of a convergent series whose terms are exponential and rational functions. The expansion holds uniformly in z in the double sector | arg (±z) ... -
Uniform convergent expansions of the Gauss hypergeometric function in terms of elementary functions
Ferreira González, Chelo; López García, José Luis ; Pérez Sinusía, Ester (Taylor & Francis, 2018)
Artículo / Artikulua
We consider the hypergeometric function 2F1(a, b; c; z) for z ∈ C \ [1,∞). For Ra ≥ 0, we derive a convergent expansion of 2F1(a, b; c; z) in terms of the function (1 − z)−a and of rational functions of z that is uniformly ... -
Uniform representation of the incomplete beta function in terms of elementary functions
Ferreira González, Chelo; López García, José Luis ; Pérez Sinusía, Ester (Kent State UniversityJohann Radon Institute (RICAM), 2018)
Artículo / Artikulua
We consider the incomplete beta function Bz(a, b) in the maximum domain of analyticity of its three variables: a, b, z ∈ C, −a /∈ N, z /∈ [1, ∞). For <b ≤ 1 we derive a convergent expansion of z−aBz(a, b) in terms of the ... -
Uniformly convergent expansions for the generalized hypergeometric functions p –1Fp and pFp
López García, José Luis ; Pagola Martínez, Pedro Jesús ; Karp, D. B. (Taylor & Francis, 2020)
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We derive a convergent expansion of the generalized hypergeometric function p−1 F p in terms of the Bessel functions 0 F 1 that holds uniformly with respect to the argument in any horizontal strip of the complex plane. We ... -
A unique cardiac electrocardiographic 3D model. Toward interpretable AI diagnosis
Rueda, Cristina; Rodríguez Collado, Alejandro; Fernández, Itziar; Canedo, Christian; Ugarte Martínez, María Dolores ; Larriba, Yolanda (Elsevier, 2022)
Artículo / Artikulua
Mathematical models of cardiac electrical activity are one of the most important tools for elucidating information about heart diagnostics. In this paper, we present an efficient mathematical formulation for this modeling ... -
Uniqueness of unconditional basis of Hp(T) ⊕ 2 and Hp(T) ⊕ T (2) for 0 < p < 1
Albiac Alesanco, Fernando José ; Ansorena, José L.; Wojtaszczyk, Przemyslaw (Elsevier, 2022)
Artículo / Artikulua
Our goal in this paper is to advance the state of the art of the topic of uniqueness of unconditional basis. To that end we establish general conditions on a pair (X, Y) formed by a quasi-Banach space X and a Banach ... -
Unpaired spatio-temporal fusion of image patches (USTFIP) from cloud covered images
Goyena Baroja, Harkaitz; Pérez Goya, Unai ; Montesino San Martín, Manuel ; Militino, Ana F. ; Wang, Qunming; Atkinson, Peter M.; Ugarte Martínez, María Dolores (Elsevier, 2023)
Artículo / Artikulua
Spatio-temporal image fusion aims to increase the frequency and resolution of multispectral satellite sensor images in a cost-effective manner. However, practical constraints on input data requirements and computational ... -
Use of response surface methodology to optimize triclosan adsorption on alumina pillared clays in a fixed-bed column for applications in solid-phase extraction
Cardona, Yaneth ; Korili, Sophia A. ; Gil Bravo, Antonio (Elsevier, 2023)
Artículo / Artikulua
Fixed-bed column studies are generally conducted to consider possible applications in water-purification processes. In this work, three synthetic alumina pillared interlayered clays (Al-PILC) were analyzed in fixed-bed column ... -
The use of two-point Taylor expansions in singular one-dimensional boundary value problems I
Ferreira González, Chelo; López García, José Luis ; Pérez Sinusía, Ester (Elsevier, 2018)
Artículo / Artikulua
We consider the second-order linear differential equation (x + 1)y′′ + f(x)y′ + g(x)y = h(x) in the interval (−1, 1) with initial conditions or boundary conditions (Dirichlet, Neumann or mixed Dirichlet-Neumann). The ... -
Using mortality to predict incidence for rare and lethal cancers in very small areas
Etxeberria Andueza, Jaione ; Goicoa Mangado, Tomás; Ugarte Martínez, María Dolores (VCH Publishers, 2022)
Artículo / Artikulua
Incidence and mortality figures are needed to get a comprehensive overview of cancer burden. In many countries, cancer mortality figures are routinely recorded by statistical offices, whereas incidence depends on regional ... -
Using RGISTools to estimate water levels in reservoirs and lakes
Militino, Ana F. ; Montesino San Martín, Manuel ; Pérez Goya, Unai ; Ugarte Martínez, María Dolores (MDPI, 2020)
Artículo / Artikulua
The combination of freely accessible satellite imagery from multiple programs improves the spatio-temporal coverage of remote sensing data, but it exhibits barriers regarding the variety of web services, file formats, and ... -
Using the multi-response method with desirability functions to optimize the zinc electroplating of steel screws
Lostado Lorza, Rubén; Martínez Calvo, María Ángeles; Berlanga Labari, Carlos ; Rivero Fuente, Pedro J. (MDPI, 2018)
Artículo / Artikulua
Zinc electroplating is a coating process controlled by several input process parameters. However, the commonly used input parameters for setting the process of zinc deposition are current density, temperature of the coating ... -
Valorization of agri-food waste through the extraction of bioactive molecules. Prediction of their sunscreen action
Martínez Inda, Blanca; Esparza Catalán, Irene ; Moler Cuiral, José Antonio ; Jiménez Moreno, Nerea ; Ancín Azpilicueta, Carmen (Elsevier, 2023)
Artículo / Artikulua
The aim of this work was to identify the phenolic composition of 18 different vegetable residues and to determine the relationship between their phenolic compounds, antioxidant capacity and sun protection factor. For ... -
Valorization of onion waste by obtaining extracts rich in phenolic compounds and feasibility of its therapeutic use on colon cancer
Paesa, Mónica; Pires Nogueira, Danielle; Velderrain-Rodríguez, Gustavo; Esparza Catalán, Irene; Jiménez Moreno, Nerea ; Mendoza, Gracia; Osada, Jesús; Martín-Belloso, Olga; Rodríguez Yoldi, María Jesús; Ancín Azpilicueta, Carmen (MDPI, 2022)
Artículo / Artikulua
In this study, the total phenolic content, the antioxidant and antiproliferative activities of onion waste extracts were characterized. Some phenolic compounds present in the extracts were also identified and quantified ... -
Vanadium trapped by oblique nano-sheets to preserve the anisotropy in Co-V thin films at high temperature
Favieres Ruiz, Cristina ; Vergara Platero, José ; Magén, César; Ibarra, Manuel Ricardo; Madurga Pérez, Vicente (Elsevier, 2022)
Artículo / Artikulua
In this study, oriented nano-sheets generated during the growth of cobalt-rich Co–V and Co–Zn thin films induced a large anisotropy in the magnetic and transport properties. The regular nano-sheets were tilted 52–54 deg. ... -
Visible light activation of gold nanoparticles embedded into titanium dioxide surface in electrospun polymeric coatings
Sandúa Fernández, Xabier; Rivero Fuente, Pedro J. ; Calvopiña, Jonathan; Palacio, José F.; Rodríguez Trías, Rafael (MDPI, 2024)
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This work reports the development of a functional photocatalytic coating based on a combination of polymeric electrospun fibres and nanoparticles that is intended to be activated in the visible light range. In this sense, ... -
Volatile compounds other than CO2 emitted by different microorganisms promote distinct posttranscriptionally regulated responses in plants
García Gómez, Pablo; Almagro Zabalza, Goizeder ; Sánchez López, Ángela María; Bahaji, Abdellatif ; Ameztoy del Amo, Kinia ; Ricarte Bermejo, Adriana ; Baslam, Marouane ; López Gómez, Pedro ; Morán Juez, José Fernando ; Garrido Segovia, Julián José ; Muñoz Pérez, Francisco José ; Baroja Fernández, Edurne ; Pozueta Romero, Javier (Wiley, 2019)
Artículo / Artikulua
A 'box-in-box' cocultivation system was used to investigate plant responses to microbial volatile compounds (VCs) and to evaluate the contributions of organic and inorganic VCs (VOCs and VICs, respectively) to these ... -
Weak forms of unconditionality of bases in greedy approximation
Albiac Alesanco, Fernando José ; Ansorena, José L.; Berasategui, Miguel; Berná, Pablo M.; Lassalle, Silvia (Instytut Matematyczny, 2022)
Artículo / Artikulua
We study a new class of bases, weaker than quasi-greedy bases, which retain their unconditionality properties and can provide the same optimality for the thresholding greedy algorithm. We measure how far these bases are ...
