Results 71 to 80 of about 7,786,216 (339)

Spectral and timing studies of 2S 1417-624 during a giant outburst [PDF]

open access: yes, 2018
We present the results obtained from timing and spectral studies of the accretion powered X-ray pulsar 2S~1417-624 during a giant outburst in 2009 by using {\it Rossi X-ray Timing Explorer (RXTE)} observations. X-ray pulsations were detected in the light
Epili, Prahlad R.   +3 more
core   +2 more sources

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

The discovery of high power - high synchrotron peak blazars

open access: yes, 2012
We study the quasi-simultaneous near-IR, optical, UV, and X-ray photometry of eleven gamma-ray selected blazars for which redshift estimates larger than 1.2 have been recently provided.
A. Rau   +29 more
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

Extracting Steady State Components from Synchrophasor Data Using Kalman Filters

open access: yesEnergies, 2016
Data from phasor measurement units (PMUs) may be exploited to provide steady state information to the applications which require it. As PMU measurements may contain errors and missing data, the paper presents the application of a Kalman Filter technique ...
Farhan Mahmood   +2 more
doaj   +1 more source

A new VLA/e-MERLIN limit on central images in the gravitational lens system CLASS B1030+074 [PDF]

open access: yes, 2016
We present new VLA 22-GHz and e-MERLIN 5-GHz observations of CLASS B1030+074, a two-image strong gravitational lens system whose background source is a compact flat-spectrum radio quasar.
Biggs, Andrew   +10 more
core   +5 more sources

Charge‐Induced Morphing Gels for Bioinspired Actuation

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel electroactive actuation mechanism that enables the gel material to generate substantial and reversible shape‐changing while preserving topological and isochoric (volumetric) equivalence. The resultant morphing behaviors can mimic the movements of muscle‐driven organelles in nature, including cilia‐like beating and ...
Ciqun Xu   +4 more
wiley   +1 more source

Introduction: Royal Power Reconsidered

open access: yes, 2018
References to the deeds and lives of the past monarchs and their commemorations are ubiquitous in the earliest extant Scandinavian literary sources. Their authors found relating to the narratives of royal power and the identification with the bygone kings and queens essential for the legendary and historical stories of national and personal origins ...
Morawiec, Jakub, Borysławski, Rafał
openaire   +2 more sources

Coordinated Multi‐Component Gradient Engineering of Catalyst Layers for Advanced Polymer Electrolyte Fuel Cells

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou   +15 more
wiley   +1 more source

Abusos de poder y desacato a la justicia en el ámbito urbano medieval. Análisis a partir del caso de Toledo (1085-1422)

open access: yesHistoria. Instituciones. Documentos, 2005
En la Edad Media la justicia era concebida de manera distinta por cada individuo en función de la capacidad que tuviese para utilizarla en su propio beneficio. Para las "personas poderosas" (potentes personae) la justicia era un instrumento de poder más,
Óscar López Gómez
doaj  

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