Results 31 to 40 of about 207,450 (214)

Random Access in Massive MIMO by Exploiting Timing Offsets and Excess Antennas [PDF]

open access: yes, 2018
Massive MIMO systems, where base stations are equipped with hundreds of antennas, are an attractive way to handle the rapid growth of data traffic. As the number of user equipments (UEs) increases, the initial access and handover in contemporary networks
D'Amico, Antonio A.   +3 more
core   +2 more sources

La cire et le miel. Statut et fonction de la mémoire chez Huarte

open access: yesCahiers François Viète
This paper seeks to question the conception of memory that emerges from the Examen de ingenios para las ciencias (1575, 1594), by Juan Huarte de San Juan (1529-1588).
Thibault Barrier
doaj   +1 more source

Le « corps » (σῶμα) entre « chair » (σάρξ) et « esprit » (πνεῦμα)

open access: yesCahiers d'Études du Religieux- Recherches Interdisciplinaires, 2013
The religious experience that Paul bears witness to leads to a redefinition of worldly existence and involves a novel understanding of the body. To demonstrate this, the present article analyses five passages from the Pauline epistles: 2 Cor.
Élian Cuvillier
doaj   +1 more source

Approximate maximum likelihood estimation of two closely spaced sources [PDF]

open access: yes, 2014
The performance of the majority of high resolution algorithms designed for either spectral analysis or Direction-of-Arrival (DoA) estimation drastically degrade when the amplitude sources are highly correlated or when the number of available snapshots is
Besson, Olivier   +2 more
core   +3 more sources

Shaped extensions of singular spectrum analysis [PDF]

open access: yes, 2014
Extensions of singular spectrum analysis (SSA) for processing of non-rectangular images and time series with gaps are considered. A circular version is suggested, which allows application of the method to the data given on a circle or on a cylinder, e.g.
Golyandina, Nina, Shlemov, Alex
core  

Electron Channeling Contrast Imaging of Ferroelastic Domains

open access: yesAdvanced Materials, EarlyView.
A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng   +13 more
wiley   +1 more source

Les apories du surréalisme

open access: yesActa Neophilologica, 2019
La présente étude se propose de répondre à la question des apories qui concernent la conception surréaliste du langage et de ses outils poétiques.
Boštjan Marko Turk
doaj   +1 more source

Sulfate‐Directed Silver Dendrites with Enhanced Stability for Ultrasensitive SERS‐Based Therapeutic Drug Monitoring

open access: yesAdvanced Science, EarlyView.
This study presents sulfate‐directed silver dendrites (s‐AgDs) as oxidation‐resistant SERS substrates with long‐term stability, reproducibility, and sub‐picomolar sensitivity. Sulfate ions guide anisotropic growth and protect the surface, enabling improved performance over 7 months under ambient conditions.
Aradhana Dwivedi   +6 more
wiley   +1 more source

Radial capacity and hemodynamics evaluation in vitro and implantable feasibility validation in vivo of thinner bioresorbable polymer vascular stents

open access: yesBMEMat, EarlyView.
A series of in vitro experiments, numerical simulations and in vivo experiments were conducted to jointly evaluate the effects of different thicknesses of bioabsorbable polymer vascular stents on their radial capacity, hemodynamics and in vivo outcomes.
Chong Chen   +9 more
wiley   +1 more source

Dextrocardia with complete atrioventricular block—the right clinical approach to pace a heart on the right hemithorax: a case report

open access: yesJournal of Medical Case Reports
Background A heart positioned on the right side of the thorax can be more a complex situation than it seems, also the potentially associated congenital cardiopathies are variable.
Ralph Abi Nader   +2 more
doaj   +1 more source

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