1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Autónoma de MadridES613 papers
- Institute of Mathematical SciencesIN550 papers
- Consejo Superior de Investigaciones CientíficasES482 papers
- Universidad Complutense de MadridES354 papers
- Instituto de Ciencia de Materiales de MadridES100 papers
- Instituto de Estructura de la MateriaES87 papers
- Universidad Politécnica de MadridES86 papers
- Universidad de ZaragozaES78 papers
- Centre National de la Recherche ScientifiqueFR69 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT62 papers
- IMDEA NetworksES53 papers
- Universidad de SevillaES51 papers
130 papers · 1 filter
Axisymmetric bubble pinch-off at high Reynolds numbers
José Manuel Gordillo, Alejandro Sevilla, Javier Rodríguez-Rodríguez +1
Analytical considerations and potential flow numerical simulations of the pinch-off of bubbles at high Reynolds numbers reveal that the bubble minimum radius, , decreases as $…
Piercing the rainbow: entanglement on an inhomogeneous spin chain with a defect
Nadir Samos Sáenz de Buruaga, Silvia N. Santalla, Javier Rodríguez-Laguna +1
The {\em rainbow state} denotes a set of valence bond states organized concentrically around the center of a spin 1/2 chain. It is the ground state of an inhomogeneous XX Hamiltoni…
On the thinnest steady threads obtained by gravitational stretching of capillary jets
Mariano Rubio-Rubio, Alejandro Sevilla, José Manuel Gordillo
Experiments and global linear stability analysis are used to obtain the critical flow rate below which the highly stretched capillary jet generated when a Newtonian liquid issues f…
First-Passage Percolation under extreme disorder: from bond-percolation to Kardar-Parisi-Zhang universality
Daniel Villarrubia, Iván Álvarez Domenech, Silvia N. Santalla +2
We consider the statistical properties of arrival times and balls on first-passage percolation (FPP) square lattices with strong disorder in the link-times. A previous work sh…
Vortex shedding in high-Reynolds-number axisymmetric bluff-body wakes: local linear instability and global bleed control
Alejandro Sevilla, Carlos Martínez-Bazán
We study the large-scale helical vortex shedding regime in the wake of an axisymmetric body with a blunt trailing edge at high Reynolds numbers, both experimentally and by means of…
Transition from bubbling to jetting in a co-axial air-water jet
A. Sevilla, J. M. Gordillo, C. Martínez-Bazán
In this Brief Communication we study experimentally the flow regimes that appear in co-axial air-water jets discharging into a stagnant air atmosphere and we propose a simple expla…
Diffusion-flame flickering as a hydrodynamic global mode
D. Moreno-Boza, W. Coenen, A. Sevilla +3
The present study employs a linear global stability analysis to investigate buoyancy-induced flickering of axisymmetric laminar jet diffusion flames as a hydrodynamic global mode.…
OKpi: All-KPI Network Slicing Through Efficient Resource Allocation
Jorge {Martín-Pérez}, Francesco Malandrino, Carla Fabiana Chiasserini +1
Networks can now process data as well as transporting it; it follows that they can support multiple services, each requiring different key performance indicators (KPIs). Because of…
The effect of viscous relaxation on the spatiotemporal stability of capillary jets
Alejandro Sevilla
The linear spatiotemporal stability properties of axisymmetric laminar capillary jets with fully developed initial velocity profiles are studied for large values of both the Reynol…
Bubble formation regimes in forced co-axial air-water jets
J. Ruiz-Rus, R. Bolaños-Jiménez, A. Sevilla +1
We report a detailed experimental characterization of the periodic bubbling regimes that take place in an axisymmetric air-water jet when the inner air stream is forced by periodic…
Universal Thinning of Liquid Filaments under Dominant Surface Forces
Alejandro Martínez-Calvo, Alejandro Sevilla
Theory and numerical simulations of the thinning of liquid threads at high superficial concentration of surfactants suggest the existence of an asymptotic regime where surface tens…
Allen: A high level trigger on GPUs for LHCb
R. Aaij, J. Albrecht, M. Belous +26
We describe a fully GPU-based implementation of the first level trigger for the upgrade of the LHCb detector, due to start data taking in 2021. We demonstrate that our implementati…
Detecting and Classifying Outliers in Big Functional Data
Oluwasegun Taiwo Ojo, Antonio Fernández Anta, Rosa E. Lillo +1
We propose two new outlier detection methods, for identifying and classifying different types of outliers in (big) functional data sets. The proposed methods are based on an existi…
Finite morphisms and Nash multiplicity sequences
A. Bravo, S. Encinas
We study finite morphisms of varieties and the link between their top multiplicity loci under certain assumptions. More precisely, we focus on how to determine that link in terms o…
Hierarchical Clustering for Smart Meter Electricity Loads based on Quantile Autocovariances
Andrés M. Alonso, F. Javier Nogales, Carlos Ruiz
In order to improve the efficiency and sustainability of electricity systems, most countries worldwide are deploying advanced metering infrastructures, and in particular household…
Deep Sequential Models for Suicidal Ideation from Multiple Source Data
Ignacio Peis, Pablo M. Olmos, Constanza Vera-Varela +4
This article presents a novel method for predicting suicidal ideation from Electronic Health Records (EHR) and Ecological Momentary Assessment (EMA) data using deep sequential mode…
A numerical study of the rippling instability driven by electron-phonon coupling in graphene
Tommaso Cea, Miguel Ruiz-Garcia, Luis Bonilla +1
Suspended graphene exhibits ripples of size ranging from 50 to 100 Å and height 10Å, however, their origin remains undetermined. Previous theoretical works have proposed that…
Gravitating vortices with positive curvature
Mario Garcia-Fernandez, Vamsi Pritham Pingali, Chengjian Yao
We give a complete solution to the existence problem for gravitating vortices with non-negative topological constant . Our first main result builds on previous resul…
ZKSENSE: A Friction-less Privacy-Preserving Human Attestation Mechanism for Mobile Devices
Iñigo Querejeta-Azurmendi, Panagiotis Papadopoulos, Matteo Varvello +3
Recent studies show that 20.4% of the internet traffic originates from automated agents. To identify and block such ill-intentioned traffic, mechanisms that verify the humanness of…
On the flow separation mechanism in the inverse Leidenfrost regime
J. Arrieta, A. Sevilla
The inverse Leidenfrost regime occurs when a heated object in relative motion with a liquid is surrounded by a stable vapour layer, drastically reducing the hydrodynamic drag at la…
On the future of solutions to the massless Einstein-Vlasov system in a Bianchi I cosmology
Ho Lee, Ernesto Nungesser, Paul Tod
We show that massless solutions to the Einstein-Vlasov system in a Bianchi I space-time with small anisotropy, i.e. small shear and small trace-free part of the spatial energy mome…
Segregated interactions in urban and online space
Xiaowen Dong, Alfredo J. Morales, Eaman Jahani +6
Urban income segregation is a widespread phenomenon that challenges societies across the globe. Classical studies on segregation have largely focused on the geographic distribution…
Improved BiGAN training with marginal likelihood equalization
Pablo Sánchez-Martín, Pablo M. Olmos, Fernando Perez-Cruz
We propose a novel training procedure for improving the performance of generative adversarial networks (GANs), especially to bidirectional GANs. First, we enforce that the empirica…
Adaptive sparse group LASSO in quantile regression
Álvaro Méndez Civieta, M. Carmen Aguilera-Morillo, Rosa E. Lillo
This paper studies the introduction of sparse group LASSO (SGL) to the quantile regression framework. Additionally, a more flexible version, an adaptive SGL is proposed based on th…