Results 21 to 30 of about 1,895,438 (316)

A produção de sentido nas interações virtuais: um estudo dos minicontos no Instagram

open access: yesRevista Investigações, 2022
O objetivo deste artigo é postular características sociocognitivas e discursivas presentes em minicontos no Instagram, considerando as relações entre processos referenciais, inferenciais e framing encenados nos textos veiculados pelas redes sociais ...
Zilda Gaspar Oliveira Aquino   +2 more
doaj   +1 more source

On R-duals and the duality principle in Gabor analysis [PDF]

open access: yes, 2014
The concept of R-duals of a frame was introduced by Casazza, Kutyniok and Lammers in 2004, with the motivation to obtain a general version of the duality principle in Gabor analysis.
AJEM Janssen   +13 more
core   +1 more source

Adjoint approach sensitivity analysis of thin‐walled beams and frames

open access: yesJournal of Civil Engineering and Management, 2005
Sensitivity analysis of beams and frames assembled of thin‐walled members is presented within the adjoint approach. Static loads and structures composed of thin‐walled members with the bisymmetrical open cross‐section are considered.
Ireneusz Kreja   +2 more
doaj   +1 more source

Frames, semi-frames, and Hilbert scales

open access: yes, 2012
Given a total sequence in a Hilbert space, we speak of an upper (resp. lower) semi-frame if only the upper (resp. lower) frame bound is valid. Equivalently, for an upper semi-frame, the frame operator is bounded, but has an unbounded inverse, whereas a ...
Antoine, J-P., Balazs, P.
core   +1 more source

Measures of scalability [PDF]

open access: yes, 2014
Scalable frames are frames with the property that the frame vectors can be rescaled resulting in tight frames. However, if a frame is not scalable, one has to aim for an approximate procedure. For this, in this paper we introduce three novel quantitative
Chen, Xuemei   +4 more
core   +2 more sources

Tameness and frames revisited [PDF]

open access: yes, 2017
We study the problem of extending an abstract independence notion for types of singletons (what Shelah calls a good frame) to longer types. Working in the framework of tame abstract elementary classes, we show that good frames can always be extended to ...
Boney, Will, Vasey, Sebastien
core   +1 more source

Alianzas y resistencias feministas en Facebook para la convocatoria del 8M en España

open access: yesConvergencia, 2019
Este artículo indaga en la militancia política ejercida a través de la Red por el movimiento feminista en España, analizando los recursos empleados para difundir la convocatoria de huelga del 8 de marzo de 2018 en Facebook.
Diana Fernández-Romero   +1 more
doaj   +1 more source

The Concepts-Constants of Political Discourse

open access: yesДискурс, 2020
Introduction. The paper considers the specifics of the cognitive concepts from the world of politics. The purpose of this paper is to analyze the concepts of political discourse and their constant structures.
Ya. Yu. Demkina
doaj   +1 more source

Flexible Power and Biomass-To-Methanol Plants With Different Gasification Technologies

open access: yesFrontiers in Energy Research, 2022
The competitiveness of biofuels may be increased by integrating biomass gasification plants with electrolysis units, which generate hydrogen to be combined with carbon-rich syngas. This option allows increasing the yield of the final product by retaining
A. Poluzzi   +10 more
doaj   +1 more source

Random Tight Frames

open access: yes, 2011
We introduce probabilistic frames to study finite frames whose elements are chosen at random. While finite tight frames generalize orthonormal bases by allowing redundancy, independent, uniformly distributed points on the sphere approximately form a ...
Ehler, Martin
core   +1 more source

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