Search results for "pac"
showing 10 items of 28794 documents
Image inpainting using directional wavelet packets originating from polynomial splines
2020
The paper presents a new algorithm for the image inpainting problem. The algorithm is using a recently designed versatile library of quasi-analytic complex-valued wavelet packets (qWPs) which originate from polynomial splines of arbitrary orders. Tensor products of 1D qWPs provide a diversity of 2D qWPs oriented in multiple directions. For example, a set of the fourth-level qWPs comprises 62 different directions. The properties of the presented qWPs such as refined frequency resolution, directionality of waveforms with unlimited number of orientations, (anti-)symmetry of waveforms and windowed oscillating structure of waveforms with a variety of frequencies, make them efficient in image pro…
Emetteur, récepteur et simulacre : questions d'affiches publicitaires
2014
This paper analyzes the concepts of simulacrum, adresser and adressee in the field of advertising. The latter is discussed in a semiotic and linguistic perspective. Inspired by the concept of semiosphere and other sociological perspectives, we study the simulacrum and its representation in the advertising discourse. To do so, we had to take into account the adressee of the advertising messages through intentionality and subjectivity issues, or, in other words, through the questions of interpretation.
Constructing co-presence through shared VR gameplay
2021
This study analyzes how participants playing VR games construct co-presence and shared gameplay. The analysis focuses on instances of play where one person is wearing the VR equipment, and other participants are located nearby without the ability to directly interact with the game. We first show how the active player using the VR equipment draws on talk and embodied activity to signal their presence in the shared physical environment, while simultaneously conducting actions in the virtual space, and thus creates spaces for the other participants to take part in gameplay. Second, we describe how other participants draw on the contextual configurations of the moment in displaying co-presen…
Space-by-Time Modular Decomposition Effectively Describes Whole-Body Muscle Activity During Upright Reaching in Various Directions
2017
The modular control hypothesis suggests that motor commands are built from precoded modules whose specific combined recruitment can allow the performance of virtually any motor task. Despite considerable experimental support, this hypothesis remains tentative as classical findings of reduced dimensionality in muscle activity may also result from other constraints (biomechanical couplings, data averaging or low dimensionality of motor tasks). Here we assessed the effectiveness of modularity in describing muscle activity in a comprehensive experiment comprising 72 distinct point-to-point whole-body movements during which the activity of 30 muscles was recorded. To identify invariant modules o…
Existence of two solutions for singular Φ-Laplacian problems
2022
AbstractExistence of two solutions to a parametric singular quasi-linear elliptic problem is proved. The equation is driven by theΦ\Phi-Laplacian operator, and the reaction term can be nonmonotone. The main tools employed are the local minimum theorem and the Mountain pass theorem, together with the truncation technique. GlobalC1,τ{C}^{1,\tau }regularity of solutions is also investigated, chiefly viaa prioriestimates and perturbation techniques.
ETAT TOPOLOGIQUE DE L'ESPACE TEMPS A L'ECHELLE 0
2002
We propose in this research a new solution regarding the existence and the content of the initial spacetime singularity. In the context of topological field theory we consider that the initial singularity of space-time corresponds to a zero size singular gravitational instanton characterized by a Riemannian metric configuration (++++) in dimension D = 4. Connected with some unexpected topological data corresponding to the zero scale of space-time, the initial singularity is thus not considered in terms of divergences of physical fields but can be resolved in the frame of topological field theory. We get this result from the physical observation that the pre-spacetime is in a thermal equilib…
Lenguaje y discapacidad intelectual
2006
Se describen los diferentes aspectos del desarrollo del lenguaje (fonético-fonológicos, semánticos, morfosintácticos y pragmáticos) en el alumnado con discapacidad intelectual y la intervención logopédica aplicable.
“Congratulations, you’re on TV!”: Middle-space performances of live tweeters during the FIFA World Cup
2018
Social television has transformed the traditional role of the television viewers by providing ‘ordinary people’ access to the public stage. This article describes how public access to television affected the dialogues of Finnish tweeters on Twitter during the massive media event of the FIFA World Cup. Through the lens of digital conversation analysis, the study shows how the media publicity of tweets changed the direction of the interaction between tweeters and transformed their roles vis-à-vis the television show, making one of them into a ‘media flasher’ and the others viewers of his or her performance. The publicity was constructed as important through noticings, congratulations, and com…
'Beyond the Floats of Cloud': The Variable Geometry of the Frostian Sky
2014
International audience; "
A Telemetry, Tracking, and Command Antennas System for Small-Satellite Applications
2019
Circularly polarized (CP) antennas are used in space applications for telemetry tracking and command (TT&