Listar INAMAT2 - Institute for Advanced Materials and Mathematics por título
Mostrando ítems 415-426 de 426
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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 ... -
Weightable quasi-metrics related to fuzzy sets
Campión Arrastia, María Jesús ; García Catalán, Olga Raquel ; Induráin Eraso, Esteban ; Valero, Óscar (Hacettepe University (Turquía), 2018)
Artículo / Artikulua
We show that the definition of a fuzzy set is directly related to the existence of a weightable quasi-metric on a universe. This relationship is also explored in terms of functional equations coming either from the membership ... -
Wettability control on microstructured polypropylene surfaces by means of O2 plasma
Lafuente, Marta; Martínez, Elena; Pellejero, Ismael ; Artal, María del Carmen; Pina, María del Pilar (Wiley, 2017)
Artículo / Artikulua
Durable and wear resistant polypropylene surfaces with static contact angle (SCA) above 140° have been fabricated using standard photolithographic process and O2 plasma etching followed by thermal annealing at 100 °C. This ... -
What kind of school organizational decisions serve to enhance sustainable personal and social growth?
Orón Semper, José Víctor; Lizasoain Iriso, María Inmaculada ; Abaurrea Larrayoz, Jaione ; González García, Concepción; Ayuga Téllez, Esperanza (MDPI, 2021)
Artículo / Artikulua
Sustainable decisions in education are those which pursue long-term achievements for students. In many cases, the principals of the schools are those who must make these decisions. In this paper we explore some of the ... -
White and red Brazilian Sao Simao's kaolinite-TiO2 nanocomposites as catalysts for toluene photodegradation from aqueous solutions
Mora, Lucas D.; Trujillano, Raquel; Rives, Vicente; Pérez Bernal, María Elena; Korili, Sophia A. ; Gil Bravo, Antonio ; Faria, Emerson H. de (MDPI, 2019)
Artículo / Artikulua
The presence of volatile organic compounds in groundwater is a major concern when it is used as a drinking water source because many of these compounds can adversely affect human health. This work reports on the preparation ... -
Why using topological and analytical methods in aggregation of fuzzy preferences?
Campión Arrastia, María Jesús ; Induráin Eraso, Esteban ; Raventós Pujol, Armajac (2020)
Contribución a congreso / Biltzarrerako ekarpena
The Arrow’s Impossibility Theorem states that there is no function fusing individual preferences into a social one satisfying certain properties of 'common sense'. On the contrary, in some of the fuzzy extensions of the ... -
Zeolite synthesis from aluminum saline slag waste
Yoldi Sangüesa, María ; Fuentes Ordóñez, Edwin Gustavo ; Korili, Sophia A. ; Gil Bravo, Antonio (Elsevier, 2020)
Artículo / Artikulua
This work describes the synthetic procedures developed to obtain zeolite X (NaX), zeolite A (LTA) and sodalite (SOD) using aluminum saline slag waste (AlSSW) as aluminum source in a two-step hydrothermal method involving ... -
Zeolite synthesis from industrial wastes
Yoldi Sangüesa, María ; Fuentes Ordóñez, Edwin Gustavo ; Korili, Sophia A. ; Gil Bravo, Antonio (Elsevier, 2019)
Artículo / Artikulua
Conventional synthesis conditions for each type of zeolite are tabulated and reported by the International Zeolite Association Structure Commission (IZA) and most of them are synthesized from commercial reagents, but they ... -
Zirconia-supported 11-molybdovanadophosphoric acid catalysts: effect of the preparation method on their catalytic activity and selectivity
El Bakkali, Bouchra; Trautwein, Guido; Alcañiz Monge, Juan; Reinoso, Santiago (Wiley, 2018)
Artículo / Artikulua
The oxidation of adamantane with hydrogen peroxide catalyzed by zirconia-supported 11-molybdovanadophosphoric acid is shown to be a suitable green route for the synthesis of adamantanol and adamantanone. This work evaluates ... -
Zirconia-supported tungstophosphoric heteropolyacid as heterogeneous acid catalyst for biodiesel production
Alcañiz Monge, Juan; El Bakkali, Bouchra; Trautwein, Guido; Reinoso, Santiago (Elsevier, 2018)
Artículo / Artikulua
A series of materials based on the immobilization of the 12-tungstophosphoric heteropolyacid over zirconia supports have been prepared and applied as heterogeneous acid catalysts in the esterification of palmitic acid with ... -
Zn-Ti-Al layered double hydroxides synthesized from aluminum saline slag wastes as efficient drug adsorbents
Santamaría Arana, Leticia ; López Aizpún, María ; García Padial, Marcos; Vicente, Miguel Ángel; Korili, Sophia A. ; Gil Bravo, Antonio (Elsevier, 2020)
Artículo / Artikulua
This work reports the synthesis of Zinc-Titanium-Aluminum (ZnTiAl) layered double hydroxides (LDH) with various proportions of Al[sbnd]Ti and a Zn/(Al[sbnd]Ti) molar ratio of 3:1 by the co-precipitation method. Two series, ... -
α-Hydroxy ketones as masked ester donors in Brønsted base catalyzed conjugate additions to nitroalkenes
Olaizola, Iurre; Campano, Teresa E.; Iriarte, Igor; Vera, Silvia; Mielgo, Antonia; García Castillo, Jesús María ; Odriozola Ibarguren, José Manuel ; Oiarbide, Mikel; Palomo, Claudio (Wiley, 2018)
Artículo / Artikulua
The catalyst-controlled enantioselective direct addition reaction of enolizable esters and related carboxylic acid derivatives to p electrophiles remains a difficult synthetic transformation. In this study, the suitability ...
