Results 11 to 20 of about 241,788 (197)

Modulating the Evolution of Metastable CaO* for the Near-Theoretical Performance Breakthrough of Ni/CeO<sub>2</sub>-CaO in Integrated CO<sub>2</sub> Capture and Methanation. [PDF]

open access: yesAdv Sci (Weinh)
A low‐temperature hydrogen spillover decomposition strategy is proposed to reveal the influence of the CaCO3 parent conversion process on the properties of nascent CaO. Under the guidance of the advanced synthesis strategy, the properties of calcium‐based dual‐functional materials are maximally exploited.
Wei L   +7 more
europepmc   +2 more sources

Atención visual en la evaluación de espacios arquitectónicos

open access: yesEGA, 2015
El análisis del comportamiento visual ante un determinado estímulo supone una herramienta de estudio de la respuesta más inmediata e instintiva del observador.
Susana Iñarra Abad   +3 more
doaj   +1 more source

Attitude Synchronization of Rigid Bodies With Event-Triggered Communication

open access: yesIEEE Access, 2023
This article addresses the challenge of attitude synchronization of a group of rigid bodies (considered to be agents) with zero final angular velocity.
Juan R. Ayala-Olivares   +3 more
doaj   +1 more source

Co-universal algebras associated to product systems, and gauge-invariant uniqueness theorems [PDF]

open access: yes, 2009
Let X be a product system over a quasi-lattice ordered group. Under mild hypotheses, we associate to X a C*-algebra which is co-universal for injective Nica covariant Toeplitz representations of X which preserve the gauge coaction.
Aidan Sims   +4 more
core   +3 more sources

Quake Detection System Using Smartphone-based Wireless Sensor Network For Early Warning.

open access: yesRevista Iberoamericana de Automática e Informática Industrial RIAI, 2015
Detecting disruptive events using COTS sensors like the ones embedded in smartphones is a difficult challenge but also an interesting opportunity. In this paper, we present a distributed, reliable, hierarchical and hard real-time system architecture of ...
Ana Zambrano Vizuete   +3 more
doaj   +1 more source

The virtual reconstruction of architectural heritage and its methodological application

open access: yesEGA, 2015
The virtual reconstruction of architectural heritage is a fundamentally theoretical work that can address the problem of physical intervention in ruinous groups of buildings.
Juan Carlos Piquer-Cases   +2 more
doaj   +1 more source

K-homological finiteness and hyperbolic groups [PDF]

open access: yes, 2015
Motivated by classical facts concerning closed manifolds, we introduce a strong finiteness property in K-homology. We say that a C*-algebra has uniformly summable K-homology if all its K-homology classes can be represented by Fredholm modules which are ...
Emerson, Heath, Nica, Bogdan
core   +1 more source

Entering University: a challenge for the academic guidance.

open access: yesRed U, 2014
Improve  transition  from  secondary education  to  university  has  always been  a  challenge  in  academic  guidance. Freshmen face a new personal, social, and academic context.
Eloïna Garcia Félix   +2 more
doaj   +1 more source

Strong hyperbolicity [PDF]

open access: yes, 2015
We propose the metric notion of strong hyperbolicity as a way of obtaining hyperbolicity with sharp additional properties. Specifically, strongly hyperbolic spaces are Gromov hyperbolic spaces that are metrically well-behaved at infinity, and, under weak
Nica, Bogdan, Spakula, Jan
core   +1 more source

Anamorphosis, its history and evolution

open access: yesEGA, 2014
The illusionist painting has always fascinated human beings. The art of trompe l’oeil has been generally considered as an anamorphosis if it is painted over curved or flat surfaces, oblique with respect to the viewer, so it is correctly seen only from a ...
Pedro Cabezos Bernal   +2 more
doaj   +1 more source

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