3,809 research outputs found
Tres niveles de protección a la libertad de expresión y producción de los científicos
No full text© Pérez-Llorca Abogados, S.L.P.
Depósito legal: M-7551-2019Depto. de Física TeóricaFac. de Ciencias FísicasFALSEpu
Entrevista a Carlos M. Puna y Carlos Pimentel
No full textEntrevista a Carlos M. Pina y Carlos Pimental, quienes publicaron "Pequeña guía de minerales inexistentes", una obra que realiza un repaso por dichos minerales, comentando sus propiedades básicas y analizando semejanzas con minerales reales.Depto. de Sistemas Informáticos y ComputaciónFac. de InformáticaTRUEpu
Vicenç Riera Llorca, el seu pas pel temps
No full textObres ressenyades: Epistolari Joan Fuster-Vicenç Riera Llorca. Barcelona : Curial, 1993, i Els exiliats catalans a Mèxic. Barcelona : Curial, 1994, tots dos a cura de Josep Ferrer i Costa i Joan Pujadas i Marquè
Rate-memory trade-off for the two-user broadcast caching network with correlated sources
No full textRate-Distortion-Memory Trade-Offs in Heterogeneous Caching Networks
No full textCaching at the wireless edge can be used to keep up with the increasing demand for high-definition wireless video streaming. By prefetching popular content into memory at wireless access points or end-user devices, requests can be served locally, relieving strain on expensive backhaul. In addition, using network coding allows the simultaneous serving of distinct cache misses via common coded multicast transmissions, resulting in significantly larger load reductions compared to those achieved with traditional delivery schemes. Most prior works simply treat video content as fixed-size files that users would like to fully download. This work is motivated by the fact that video can be coded in a scalable fashion and that the decoded video quality depends on the number of layers a user receives in sequence. Using a Gaussian source model, caching and coded delivery methods are designed to minimize the squared error distortion at end-user devices in a rate-limited caching network. The framework is very general and accounts for heterogeneous cache sizes, video popularities and user-file play-back qualities. As part of the solution, a new decentralized scheme for lossy cache-aided delivery subject to preset user distortion targets is proposed, which further generalizes prior literature to a setting with file heterogeneity
Rate-memory trade-off for caching and delivery of correlated sources
No full textThis paper studies the fundamental limits of content delivery in a cache-aided broadcast network for correlated content generated by a discrete memoryless source with arbitrary joint distribution. Each receiver is equipped with a cache of equal capacity, and the requested files are delivered over a shared error-free broadcast link. A class of achievable correlation-aware schemes based on a two-step source coding approach is proposed. Library files are first compressed, and then cached and delivered using a combination of multiple-request caching schemes that are agnostic to the content correlations. The first step uses Gray-Wyner source coding to represent the library via private descriptions and descriptions that are common to more than one file. The second step then becomes a multiple-request caching problem, where the demand structure is dictated by the configuration of the compressed library, and it is interesting in its own right. The performance of the proposed two-step scheme is evaluated by comparing its achievable rate with a lower bound on the optimal peak and average rate-memory trade-offs in a two-file multiple-receiver network, and in a three-file two-receiver network. Specifically, in a network with two files and two receivers, the achievable rate matches the lower bound for a significant memory regime and it is within half of the conditional entropy of files for all other memory values. In the three-file two-receiver network, the two-step strategy achieves the lower bound for large cache capacities, and it is within half of the joint entropy of two of the sources conditioned on the third one for all other cache sizes
Vides medievals de sants : difusió, tradició i llegenda, ed. Marinela Garcia Sempere, M. Àngels Llorca Tonda
No full textVides medievals de sants : difusió, tradició i llegenda nace del Seminario de Estudios Hagiográficos, organizado por el grupo de investigación Valenciana Prosa y celebrado en 2011 en la Universidad de Alicante. El volumen, editado por las profesoras Marinela Garcia Sempere y M. Àngels Llorca Tonda, recoge un total de ocho artículos que, desde distintas perspectivas, abordan aspectos relativos a la hagiografía medieval. En la presentación a cargo de las editoras, éstas recuerdan la amplísima d..
Dataset used in the publication entitled "Origin of nucleation and growth of extension twins in grains unsuitably oriented for twinning during deformation of Mg-1%Al"
No full text<p>Documentation for the Dataset used in the publication entitled "Origin of nucleation and growth of extension twins in grains unsuitably oriented for twinning during deformation of Mg-1%Al"<br>** These datasets comprise the 2D data acquired in the Mg-1Al (at.%) alloy sample by means of in-situ EBSD, analyzed by MTEX 7.0 software. **<br>** The samples were deformed in tension and the test was periodically stopped to acquire the data. The in-situ EBSD data were acquired at tensile strains of 1.5%, 4.5%, 10.0%, and 15.3%.<br>** More details about the experimental techniques can be found in the publication "Biaobiao Yang, Javier Llorca, Origin of nucleation and growth of extension twins in grains unsuitably oriented for twinning during deformation of Mg-1%Al. Journal of Magnesium and Alloys, 2024." **</p>
<p>1. Figs.1(B)_and_2_Grainsize_SF_Dataset.xlsx<br>- Description: The grain size and Schmid factors (SF) of various deformation modes acquired by in-situ EBSD before deformation<br>- Number of total grains: 4251 (rows == grains)<br>- Number of analyzed variables (features): 8 (columns == grain characteristics)</p>
<p>- Variable description by columns:<br> 1- (Grain_ID) - type: numerical (integer)<br> Description: grain identifier, unique per analyzed zone<br> 2- (Grain_size) - type: numerical (float)<br> Description: the equivalent circle diameter of a grain<br> 3- (SF_Basal) - type: numerical (float)<br> Description: it represents the highest Schmid factor of <a> basal slip in each grain<br> 4- (SF_Prismatic) - type: numerical (float)<br> Description: it represents the highest Schmid factor of <a> prismatic slip in each grain<br> 5- (SF_ET) - type: numerical (float)<br> Description: it represents the highest Schmid factor of extension twinning (ET) slip in each grain<br> 6- (SF_<a>Pyramidal) - type: numerical (float)<br> Description: it represents the highest Schmid factor of <a> pyramidal slip in each grain<br> 7- (SF_<c+a>Pyramidal) - type: numerical (float)<br> Description: it represents the highest Schmid factor of <c+a> pyramidal I slip in each grain<br> 8- (SF_CT) - type: numerical (float)<br> Description: it represents the highest Schmid factor of compression twinning (CT) in each grain</p>
<p>2. Fig.3(A)_Stress-strain_curves.xlsx<br>- Description: The true tensile stress-true strain curve of Mg-1Al alloy deformed along the extrusion direction<br>- Number of analyzed variables (features): 2 </p>
<p>- Variable description by columns:<br> 1- (True_Strain) - type: numerical (float)<br> Description: True strain during deformation<br> 2- (True_Stress) - type: numerical (float)<br> Description: True stress reached corresponding to given true strain</p>
<p>3. Fig.3(B)_Strain_Hardening-Rate-strain_curves.xlsx<br>- Description: The strain hardening rate-true strain curve of Mg-1Al alloy deformed in tension along the extrusion direction<br>- Number of analyzed variables (features): 2 </p>
<p>- Variable description by columns:<br> 1- (True_Strain) - type: numerical (float)<br> Description: True strain during deformation<br> 2- (Strain_Hardening-Rate) - type: numerical (float)<br> Description: Strain hardening rate at the given true strain</p>
<p>4. Fig.5_Features_anormalous_extension_twins.xlsx<br>- Description: Both twin and grain data were acquired by in-situ EBSD before and after deformation<br>- Number of total twins: 353 (rows == twins) in four sheets corresponding to four strains: 1.5%, 4.5%, 10.0%, and 15.3%.<br>- Number of analyzed variables (features): 6 (columns == twin characteristics)</p>
<p>- Variable description by columns:<br> 1- (Twin_ID) - type: numerical (integer)<br> Description: twin identifier, unique per analyzed zone<br> 2- (Aspect ratio of twin) - type: numerical (float)<br> Description: the length / width ratio of twin. More details can be found on the MTEX website (https://mtex-toolbox.github.io/grain2d.aspectRatio.html) <br> 3- (Twinned area fraction) - type: numerical (float)<br> Description: it represents the area fraction of one twin in the corresponding parent grain. The value of 1 indicates that the full parent grain is occupied by this twin<br> 4- (Twinning Schmid factor) - type: numerical (float)<br> Description: the twinning Schmid factor based on the loading condition, orientation of the parent grain and twinning variants information<br> 5- (Twin variants) - type: numerical (integer)<br> Description: the active twin variant was identified by means of conventional twinning analysis based on the orientations of twin and corresponding parent grain<br> 1: (ET1) (-1 0 1 2)[1 0 -1 1]<br> 2: (ET2) (1 0 -1 2)[-1 0 1 1]<br> 3: (ET3) (1 -1 0 2)[-1 1 0 1]<br> 4: (ET4) (-1 1 0 2)[1 -1 0 1]<br> 5: (ET5) (0 1 -1 2)[0 -1 1 1]<br> 6: (ET6) (0 -1 1 2)[0 1 -1 1]<br> 6- (Twin variant Schmid factor ranking) - type: numerical (integer)<br> Description: the twinning Schmid factor ranking of active twin variant among 6 possible twin variants; the Schmid factor decreased from 1 to 6<br> 1: 1st (the highest Schmid factor for extension twinning)<br> 2: 2nd<br> 3: 3rd<br> 4: 4th<br> 5: 5th<br> 6: 6th (the lowest Schmid factor for extension twinning)</p>
<p>5. Fig.8(A)_Twin_twin_m_prime.xlsx<br>- Description: Both twin and grain data were acquired by in-situ EBSD before and after deformation up to 10.0%<br>- Number of twin-twin pairs: 17 (rows)<br>- Number of analyzed variables (features): 12 (columns)</p>
<p>- Variable description by columns: <br> 1- (Twin1_ID) - type: numerical (integer)<br> Description: the ID of the incoming twin of one twin-twin pair. Note that for one twin-twin pair, the twin with a higher macroscopic twinning Schmid factor is considered to be the incoming one<br> 2- (Grain1_ID) - type: numerical (integer)<br> Description: the ID of parent grain nucleating the incoming twin<br> 3- (Twin1_SF) - type: numerical (float)<br> Description: the twinning Schmid factor of incoming twin based on the loading condition, orientation of parent grain and twinning variants information<br> 4- (Twin1_variant) - type: numerical (integer)<br> Description: the active twin variant was identified by means of conventional twinning analysis based on the orientations of the twin and corresponding parent grain<br> 1: (ET1) (-1 0 1 2)[1 0 -1 1]<br> 2: (ET2) (1 0 -1 2)[-1 0 1 1]<br> 3: (ET3) (1 -1 0 2)[-1 1 0 1]<br> 4: (ET4) (-1 1 0 2)[1 -1 0 1]<br> 5: (ET5) (0 1 -1 2)[0 -1 1 1]<br> 6: (ET6) (0 -1 1 2)[0 1 -1 1]<br> 5- (Twin2_ID) - type: numerical (integer)<br> Description: the ID of outgoing twin of one twin-twin pair<br> 6- (Grain2_ID) - type: numerical (integer)<br> Description: the ID of parent grain nucleating the outgoing twin<br> 7- (Twin2_SF) - type: numerical (float)<br> Description: the twinning Schmid factor of the outgoing twin<br> 8- (Twin2_variant) - type: numerical (integer)<br> Description: the ranking of active outgoing twin systems with the same definition as column 4<br> 9- (Theoretical m prime) - type: numerical (float)<br> Description: the m prime values between the grain with the incoming twin variant and 6 possible twin variants in grain having the outgoing twin <br> 10- (GB misorientation angle) - type: numerical (float)<br> Description: the grain boundary misorientation (i.e., disorientation angle) angle between grains activating incoming and outgoing twins. The unit is degree<br> 11- (True m prime) - type: numerical (float)<br> Description: the m prime values between the grain with the incoming twin variant and the grain with the outgoing twin variant<br> 12- (m prime ranking_Active twin) - type: numerical (integer)<br> Description: the m prime ranking of active twin among 6 values of theoretical m primes<br> 1: 1st (the highest m prime)<br> 2: 2nd<br> 3: 3rd<br> 4: 4th<br> 5: 5th<br> 6: 6th (the lowest m prime)</p>
<p>6. Fig.8(B)_Slip_twin_m_prime.xlsx<br>- Description: Both twin and grain data were acquired by in-situ EBSD before and after deformation up to 10.0%. The active slip system was identified by slip traces - modified lattice rotation (ST-MLRA). <br>- Number of slip-twin pairs: 84 (rows)<br>- Number of analyzed variables (features): 8 (columns)</p>
<p>- Variable description by columns: <br> 1- (Parent grain_ID) - type: numerical (integer)<br> Description: the ID of parent grain nucleating the extension twin <br> 2- (Twin SF) - type: numerical (float)<br> Description: the twinning Schmid factor of the active twin. Note that several extension twins may exist in one grain, so there are several instances of the same grain ID but different twins in the database<br> 3- (Twin variant) - type: numerical (integer)<br> Description: the active twin variant was identified by means of conventional twinning analysis based on the orientations of the twin and corresponding parent grain<br> 1: (ET1) (-1 0 1 2)[1 0 -1 1]<br> 2: (ET2) (1 0 -1 2)[-1 0 1 1]<br> 3: (ET3) (1 -1 0 2)[-1 1 0 1]<br> 4: (ET4) (-1 1 0 2)[1 -1 0 1]<br> 5: (ET5) (0 1 -1 2)[0 -1 1 1]<br> 6: (ET6) (0 -1 1 2)[0 1 -1 1]<br> 4- (Neighboring grain_ID) - type: numerical (integer)<br> Description: the ID of neighboring grain near the appeared extension twin <br> 5- (SF_basal) - type: numerical (float)<br> Description: the Schmid factor of active <a> basal slip system identified by ST-MLRA for the neighboring grain<br> 6- (Active_Basal slip) - type: numerical (integer)<br> Description: the active <a> basal slip system identified by ST-MLRA for the neighboring grain<br> 1: (S1) (0 0 0 1)[-2 1 1 0]<br> 2: (S2) (0 0 0 1)[1 1 -2 0]<br> 3: (S3) (0 0 0 1)[1 -2 1 0]<br> 7- (Theoretical m prime) - type: numerical (float)<br> Description: the m prime values between the neighboring grain with the active <a> basal slip system and 6 possible twin variants in grain having the active twin <br> 8- (True m prime) - type: numerical (float)<br> Description: the m prime values between the neighboring grain with the active <a> basal slip system and the grain with the active twin variant</p>
<p>7. Figs.8(C-D)_Correlation_twin_grainArea_basalSlipSF.xlsx<br>- Description: Summary of grain size, max. basal slip Schmid factor for all 555 grains before deformation, as well as the IDs of twinned grains after 1.5% and 10.0% tension<br>- Number of grains: 555 (rows) for all grains<br>- Number of analyzed variables (features): 5 (columns)</p>
<p>- Variable description by columns: <br> 1- (Grain_ID) - type: numerical (integer)<br> Description: the IDs of all grains before deformation <br> 2- (Grain_size) - type: numerical (float)<br> Description: the equivalent circle diameter of all the grains before deformation <br> 3- (Max. Basal slip SF) - type: numerical (float)<br> Description: the maximum of <a> basal slip Schmid factor for all the grains before deformation<br> 4- (Grain_ID_1.5%) - type: numerical (integer)<br> Description: the IDs of all twinned grains after deformation up to 1.5%<br> 5- (Grain_ID_10.0%) - type: numerical (integer)<br> Description: the IDs of all twinned grains after deformation up to 10.0% </p>
<p>8. Fig.11(A)_Grain_level_misorientation_angle.xlsx<br>- Description: misorientation angles of several grains subjected to different strains </p>
<p>9. Fig.11(B)_Grain_level_longitudinal_strain.xlsx<br>- Description: Lengths as well as longitudinal strains of several grains subjected to different strains </p>
<p>10. Fig.14_Raw_grain_length_and_Longitudinal_strain.xlsx<br>- Description: Raw data regarding the characteristics of twinned grains at various strain levels. <br> The grain size shown here is defined as the equivalent circle diameter. <br> And the grain length along the tensile direction is defined by the product of pixel number of one grain and the step size (0.5 μm). <br> Note that for some unfortunate grains, their spatial locations are near the edge of EBSD before or after deformation, thus their size characteristics are unknown. <br> One additional untwined grain G132 shown in Fig. 9 was also included in this table. <br>- Number of grains: 72 (rows) for all twinned grains; 67 grains after removing the twinned grains near the EBSD edge<br>- Number of analyzed variables (features): 12 (columns)</p>
<p>- Variable description by columns:<br> 1- (Twinned grains ID) - type: G (grain) + numerical (integer)<br> Description: The IDs of all twinned grains before deformation <br> 2- (Near edge?) - type: text (str)<br> Description: Yes: grain near the edge; No: grain not near the edge<br> 3- (Grain size (μm)) - type: numerical (float)<br> Description: The equivalent circle diameter (in micrometers) of the grain before deformation<br> 4-8- Raw grain length along the tension direction (μm)) - type: numerical (float)<br> Description: Raw grain lengths along the tension direction (μm) before deformation and at various macroscopic strain levels<br> 9-12- (Logitutational strain) - type: numerical (float)<br> Description: Logitutational strain along the tension direction after deformed to various strain levels</p>
<p>11. Raw EBSD files in .ctf<br>- Description: 0-4 refer to 0%, 1.5%, 4.5%, 10.0% and 15.3%, respectively. </p>
La manipulation des images par les femmes : à propos des Vierges miraculeuses de Marlène Albert Llorca
No full textÀ propos du livre récent de Marlène Albert Llorca, Les Vierges miraculeuses, l’auteur survole rapidement les conclusions de recherches récentes sur l’image religieuse dans l’Europe traditionnelle. Il examine les manières dont les dévots convertissent des images en objets cultuels en les associant à des laïcs importants et aux sanctuaires qui les accueillent. Il commente les conclusions d’Albert Llorca selon lesquelles ces images, vêtues pour la circonstance, peuvent servir à répliquer le “miracle” originel pour les dévots qui manipulent ces vêtements ; ainsi se rejouent les événements miraculeux censés être à l’origine du charisme de l’image. C’est donc l’imaginaire de la communauté, incarné dans les “cameraras” qui habillent l’image, qui dote celle-ci de pouvoirs miraculeux.Inspired by the recent book of M. Albert-Llorca, the author presents a rapid overview of some of the findings behind recent studies of the traditional European religious image. He examines the process by which devotees convert images into cult objects through their association with powerful lay figures and with the important churches that receive them. He comments upon M. Albert-Llorca’s findings that such church images, suitably attired, can serve to replicate for devotees the original “miracle” of the image by manipulation of the image’s veil. And he elaborates as well on M. A. L.’s finding that at least modern devotees re-stage the “miraculous” events said to lie at the origins of the image’s charisma. Clearly, no image is in fact miraculous, it is the imagination of the community, embodied in the “cameraras” who dress it, that endows it with wonder
Vides medievals de sants : difusió, tradició i llegenda, ed. Marinela Garcia Sempere, M. Àngels Llorca Tonda
No full textVides medievals de sants : difusió, tradició i llegenda nace del Seminario de Estudios Hagiográficos, organizado por el grupo de investigación Valenciana Prosa y celebrado en 2011 en la Universidad de Alicante. El volumen, editado por las profesoras Marinela Garcia Sempere y M. Àngels Llorca Tonda, recoge un total de ocho artículos que, desde distintas perspectivas, abordan aspectos relativos a la hagiografía medieval. En la presentación a cargo de las editoras, éstas recuerdan la amplísima d..
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