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Mostrando ítems 1-15 de 15

A non-discrete space X with Cp(X) Menger at infinity

Bella, Angelo; Hernández-Gutiérrez, Rodrigo (Universitat Politècnica de València, 2019-04-01)

[EN] In a paper by Bella, Tokgös and Zdomskyy it is asked whether there exists a Tychonoff space X such that the remainder of Cp(X) in some compactification is Menger but not σ-compact. In this paper we prove that it is ...
Algoritmo de entrenamiento óptimo para diseñar una memoria asociativa de diagnóstico de fallas

Ruz Hernández, José A.; Sánchez, Edgar N.; Suárez, Dionisio A. (Universitat Politècnica de València, 2008-01-24)

[ES] En este artículo, los autores presentan un nuevo enfoque de síntesis para entrenar memorias asociativas implementadas con redes neuronales recurrentes. Los pesos de la red recurrente se determinan como la solución ...
Calibración de un modelo lluvia-escorrentía combinando la optimización manual y automática para un sistema de alta montaña

Orozco Medina, Ismael; Ramirez, A.I.; Francés, F. (University of Guanajuato, 2019-10-02)

[EN] The calibration of a conceptual rainfall-runoff model is a complicated process that can take a long time and effort. Its success depends on the experience of the modeler and on the knowledge of the basin. For this ...
Control Neuronal con Término Integral para un Proceso de Fermentación

Baruch, Ieroham S.; Hernández P., Luis Alberto; del Pozo Q., Abelardo; Barrera-Cortes, Josefina (Universitat Politècnica de València, 2010-09-30)

[ES] Un modelo matemático no lineal de un proceso biotecnológico aerobio de un sistema de fermentación por lote alimentado es presentado mediante ecuaciones diferenciales ordinarias. Es propuesto un control neuronal indirecto ...
Detection of Phytoplankton Temporal Anomalies Based on Satellite Inherent Optical Properties: A Tool for Monitoring Phytoplankton Blooms

Aguilar-Maldonado, Jesús-Antonio; Santamaria-del-Angel, Eduardo; González-Silvera, Adriana; Sebastiá-Frasquet, M.-T. (MDPI AG, 2019-08-01)

[EN] The baseline of a specific variable defines the average behavior of that variable and it must be built from long data series that represent its spatial and temporal variability. In coastal and marine waters, phytoplankton ...
Dynamic properties of the dynamical system SFnm(X), SFnm(f))

Barragán, Franco; Santiago-Santos, Alicia; Tenorio, Jesús F. (Universitat Politècnica de València, 2020-04-03)

[EN] Let X be a continuum and let n be a positive integer. We consider the hyperspaces Fn(X) and SFn(X). If m is an integer such that n > m ≥ 1, we consider the quotient space SFnm(X). For a given map f : X → X, we ...
Mapping Satellite Inherent Optical Properties Index in Coastal Waters of the Yucatán Peninsula (Mexico)

Aguilar-Maldonado, J.A.; Santamaría-del-Ángel, E.; González-Silvera, Adriana; Cervantes-Rosas, Omar D.; Sebastiá-Frasquet, M.-T. (MDPI AG, 2018)

[EN] The Yucatan Peninsula hosts worldwide-known tourism destinations that concentrate most of the Mexico tourism activity. In this region, tourism has exponentially increased over the last years, including wildlife oriented ...
Modelado y evaluación de prestaciones de redes de sensores inalámbricos heterogéneos con ciclo de trabajo síncrono

Portillo Jiménez, Canek (Universitat Politècnica de València, 2021-09-02)

[ES] Las redes de sensores inalámbricas (WSN) han experimentado un resurgimiento debido al desarrollo de la Internet de las Cosas (IoT). Una de las características de las aplicaciones de la IoT es la necesidad de hacer uso ...
Modeling of Duty-Cycled MAC Protocols for Heterogeneous WSN with Priorities

Portillo, Canek; Martínez Bauset, Jorge; Pla, Vicent; Casares-Giner, Vicente (MDPI AG, 2020-03)

[EN] Wireless Sensor Networks (WSN) have experienced an important revitalization, particularly with the arrival of Internet of Things applications. In a general sense, a WSN can be composed of different classes of nodes, ...
More on ultrafilters and topological games

González-Silva, R.A.; Hrusák, M. (Universitat Politècnica de València, 2009-10-01)

[EN] Two different open-point games are studied here, the G-game and the Gp-game, defined for each p ∈ ω∗. We prove that for each p ∈ ω∗, there exists a space in which none of the players of the Gp-game has a winning ...
Nonlocal electrodinamics of homogenized metal-dielectric photonic crystals

Konovalenko, Anatolii; Reyes-Avendaño, Jorge A.; Méndez-Blas, Antonio; Cervera Moreno, Francisco Salvador; Myslivets, Evgeny; Radic, Stojan; Sánchez-Dehesa Moreno-Cid, José; Pérez-Rodríguez, Felipe (IOP Publishing, 2019-08)

[EN] The nonlocal effective permittivity tensor for photonic crystals (PCs), having dielectric and metallic inclusions in the unit cell, is calculated and analyzed within the homogenization theory based on the Fourier ...
Performance evaluation of framed slotted ALOHA with reservation packets and succesive interference cancelation for M2M networks

Casares-Giner, Vicente; Martínez Bauset, Jorge; Portillo, Canek (Elsevier, 2019-05-22)

[EN] Random access protocols like ALOHA have been considered for machine-to-machine (M2M) communication in future networks for their simplicity of operation. This paper evaluates the performance of a Frame Slotted-ALOHA ...
Some results and examples concerning Whyburn spaces

Alas, Ofelia T.; Madriz-Mendoza, Maira; Wilson, Richard G. (Universitat Politècnica de València, 2012-04-01)

[EN] We prove some cardinal inequalities valid in the classes of Whyburn and hereditarily weakly Whyburn spaces and we construct examples of non-Whyburn and non-weakly Whyburn spaces to illustrate that some previously known ...
The structure of the poset of regular topologies on a set

Alas, Ofelia T.; Wilson, Richard G. (Universitat Politècnica de València, 2011-04-01)

[EN] We study the subposet E3(X) of the lattice L1(X) of all T1-topologies on a set X, being the collections of all T3 topologies on X, with a view to deciding which elements of this partially ordered set have and which ...
Use of Novel Reinforced Cation Exchange Membranes for Microbial Fuel Cells

Kamaraj, Sathish-Kumar; Mollá Romano, Sergio; Compañ Moreno, Vicente; Poggi-Varaldo, H. M.; Solorza-Feria, Omar (Elsevier, 2015-09-10)

This work has been focused on the synthesis and characterization of different blended membranes SPEEK-35PVA (Water), SPEEK-35PVA (DMAc) prepared by casting and nanofiber-reinforced proton exchange membranes Nafion-PVA-15, ...