Physical limitations to the spatial resolution of solid-state detectors

In this paper we explore the effect of $\delta$-ray emission, fluctuations in th e signal deposition on the detection of charged particles in silicon-based detec tors. We show that these two effects ultimately limit the resolution that can be achieved by interpolation of the signal in finely segmented position-sensitive solid-state devices.Comment: 5 page

Sharp crossover from composite fermionization to phase separation in mesoscopic mixtures of ultracold bosons

We show that a two-component mixture of a few repulsively interacting ultracold atoms in a one-dimensional trap possesses very different quantum regimes and that the crossover between them can be induced by tuning the interactions in one of the species. In the composite fermionization regime, where the interactions between both components are large, none of the species show large occupation of any natural orbital. Our results show that by increasing the interaction in one of the species, one can reach the phase-separated regime. In this regime, the weakly interacting component stays at the center of the trap and becomes almost fully phase coherent, while the strongly interacting component is displaced to the edges of the trap. The crossover is sharp, as observed in the in the energy and the in the largest occupation of a natural orbital of the weakly interacting species. Such a transition is a purely mesoscopic effect which disappears for large atom numbers.Comment: 5 pages, 3 figure

A customizable open-source framework for measuring and equalizing e2e delays in shared video watching

Low-latency and media sync are essential requirements to enable interactive multi-party services, such as Social TV. In this work, we present an open-source and customizable framework that allows measuring end-to-end (e2e) video delays and provides support for different type

Distinguibility, degeneracy, and correlations in three harmonically trapped bosons in one dimension

We study a system of two bosons of one species and a third atom of a second species in a one-dimensional parabolic trap at zero temperature. We assume contact repulsive inter- and intraspecies interactions. By means of an exact diagonalization method we calculate the ground and excited states for the whole range of interactions. We use discrete group theory to classify the eigenstates according to the symmetry of the interaction potential. We also propose and validate analytical Ansätze gaining physical insight over the numerically obtained wave functions. We show that, for both approaches, it is crucial to take into account that the distinguishability of the third atom implies the absence of any restriction over the wave function when interchanging this boson with any of the other two. We find that there are degeneracies in the spectra in some limiting regimes, that is, when the interspecies and/or the intraspecies interactions tend to infinity. This is in contrast with the three-identical boson system, where no degeneracy occurs in these limits. We show that, when tuning both types of interactions through a protocol that keeps them equal while they are increased towards infinity, the systems's ground state resembles that of three indistinguishable bosons. Contrarily, the systems's ground state is different from that of three-identical bosons when both types of interactions are increased towards infinity through protocols that do not restrict them to be equal. We study the coherence and correlations of the system as the interactions are tuned through different protocols, which permit us to build up different correlations in the system and lead to different spatial distributions of the three atoms

Manufacturing and Characterization of Green Composites with Partially Biobased Epoxy Resin and Flaxseed Flour Wastes

[EN] In the present work, green¿composites from a partially biobased epoxy resin (BioEP) reinforced with lignocellulosic particles, obtained from flax industry by¿products or wastes, have been manufactured by casting. In this study, the flaxseed has been crushed by two different mechanical milling processes to achieve different particle sizes, namely coarse size (CFF), and fine size (FFF) particle flaxseed flour, with a particle size ranging between 100¿220 ¿m and 40¿140 ¿m respectively. Subsequently, different loadings of each particle size (10, 20, 30, and 40 wt%) were mixed with the BioEP resin and poured into a mold and subjected to a curing cycle to obtain solid samples for mechanical, thermal, water absorption, and morphological characterization. The main aim of this research was to study the effect of the particle size and its content on the overall properties of composites with BioEP. The results show that the best mechanical properties were obtained for composites with a low reinforcement content (10 wt%) and with the finest particle size (FFF) due to a better dispersion into the matrix, and a better polymer¿particle interaction too. This also resulted in a lower water absorption capacity due to the presence of fewer voids in the developed composites. Therefore, this study shows the feasibility of using flax wastes from the seeds as a filler in highly environmentally friendly composites with a wood¿like appearance with potential use in furniture or automotive sectors.This research was funded by Spanish Ministry of Science, Innovation, and Universities (MICIU), project numbers MAT2017-84909-C2-2-R. This work was supported by the POLISABIO program grant number (2019-A02). D. Lascano thanks Universitat Politècnica de València (UPV) for the grant received through the PAID-01-18 program. D. Garcia-Garcia wants to thank Generalitat Valenciana (GVA) for their financial support through a post-doctoral grant (APOSTD/2019/201). S. Rojas-Lema is a recipient of a Santiago Grisolía contract (GRISOLIAP/2019/132) from GVA. L. Quiles-Carrillo wants to thank GV for his FPI grant (ACIF/2016/182) and MECD for his FPU grant (FPU15/03812). Microscopy services at UPV are acknowledged for their help in collecting and analyzing FESEM images.Lascano-Aimacaña, DS.; Garcia-Garcia, D.; Rojas-Lema, SP.; Quiles-Carrillo, L.; Balart, R.; Boronat, T. (2020). Manufacturing and Characterization of Green Composites with Partially Biobased Epoxy Resin and Flaxseed Flour Wastes. Applied Sciences. 10(11):1-23. https://doi.org/10.3390/app10113688S1231011Capezza, A. J., Newson, W. R., Olsson, R. T., Hedenqvist, M. S., & Johansson, E. (2019). Advances in the Use of Protein-Based Materials: Toward Sustainable Naturally Sourced Absorbent Materials. 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Elucidation of the Interaction Mechanism between Organic Chiral Cages with Biomolecules through Nuclear Magnetic Resonance and Theoretical Studies

[EN] A multinuclear NMR has been carried out to elucidate the mechanism of action of CC3-R box-type chiral materials for the separation of enantiomers, supported by theoretical calculations. The potential of these materials to be used as chiral resolution agents through NMR is evidence in this study.Program Severo Ochoa SEV-2016-0683 is gratefully acknowledged. S.S-F. thanks MEC for his Severo Ochoa Grant SPV-2013-067884, P.O.-B. thanks MEC for his Ramon y Cajal contract RYC-2014-16620. M.B. and F.R. thank the financial support by the Spanish Government (MAT2017-82288-C2-1-P and MAT2015-71842-P). The authors thank the MULTY2-HYCAT (EU-Horizon 2020 funded project under grant agreement no. 720783). The Electron Microscopy Service of the UPV is acknowledged for their help in sample characterization.Saez-Ferre, S.; Boronat Zaragoza, M.; Cantin Sanz, A.; Rey Garcia, F.; Oña-Burgos, P. (2018). Elucidation of the Interaction Mechanism between Organic Chiral Cages with Biomolecules through Nuclear Magnetic Resonance and Theoretical Studies. The Journal of Physical Chemistry C. 122(29):16821-16829. https://doi.org/10.1021/acs.jpcc.8b05069S16821168291222

Review of Media Sync Reference Models: Advances and Open Issues

The advances on multimedia systems have brought new challenges and requirements for media sync. Over the years, many media sync solutions have been devised. Due to this variety, several studies have surveyed the existing solutions and proposed classification schemes or reference models for media sync. This paper claims the relevance of media sync reference models to systematically structure and synthesize this research area. Accordingly, a review of the existing reference models is provided, by examining the involved features, components and layers in each one of them. Likewise, some inconsistencies, open issues and missing components in existing reference models have been identified. Accordingly, this study reflects the need for a new modular and extensible theoretical framework or reference model to efficiently comprehend the overall media sync research area