Results 71 to 80 of about 870,817 (352)

Heterogeneous Nanopore Arrays – Selective Modification of Nanopores Embedded in a Membrane

open access: yesAdvanced Materials, EarlyView.
Biological processes rely on the concerted action of channels with different functionalities embedded in the same membrane. Inspired by nature, heterogeneous nanopore arrays are prepared where two nanopores are connected in parallel and function as two different elements of an ionic circuit: a diode and a resistor.
Ethan Cao, Zuzanna S. Siwy
wiley   +1 more source

Full-Stokes, Multi-Frequency Radio Polarimetry of Fermi Blazars; Monitoring and Modelling

open access: yesGalaxies, 2017
The polarised emission from active galactic nuclei (AGN) jets carries information about the physical conditions at the emitting plasma elements, while its temporal evolution probes the physical processes that introduce variability and dynamically modify ...
Emmanouil Angelakis   +2 more
doaj   +1 more source

Glaphene: A Hybridization of 2D Silica Glass and Graphene

open access: yesAdvanced Materials, EarlyView.
‘Glaphene’, a novel hybrid material combining 2D silica glass and graphene, is synthesized via a scalable liquid precursor‐based vapor‐phase growth. This study reveals interlayer hybridization beyond van der Waals interactions, leading to emergent semiconducting behavior.
Sathvik Ajay Iyengar   +10 more
wiley   +1 more source

THE STUDY OF EXTRAGALACTIC SOURCES 3C 446 AND 3C 345 WITH USING THE SINGULAR SPECTRUM AND WAVELET ANALYSIS

open access: yesOdessa Astronomical Publications, 2016
We investigated the data of monitoring of flux density of extragalactic sources 3С446 and 3C345, which was held on 26-meter radio telescope of University of Michigan at frequencies 14.5, 8 and 4.8 GHz.
G. I. Donskykh   +3 more
doaj   +1 more source

The statistics of low frequency radio interference at the Murchison Radio-astronomy Observatory [PDF]

open access: yes2015 IEEE Global Electromagnetic Compatibility Conference (GEMCCON), 2015
We characterize the low frequency radio-frequency interference (RFI) environment at the Murchison Radio-astronomy Observatory (MRO), the location selected for the low-frequency component of the Square Kilometre Array.
M. Sokołowski, R. Wayth, Morgan Lewis
semanticscholar   +1 more source

All‐Heat Control of Magnetization Dynamics on Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
Heat dissipation in nanomagnetic devices mediated by femtosecond laser excitation constitutes one of the pressing challenges toward energy‐efficient information communication technologies. Here it is shown that heat and magnetization play together to determine the ultrafast spin dynamics of van der Waals magnets across any substrates and magnet ...
Sumit Haldar   +3 more
wiley   +1 more source

An Analysis of Embedding Impedance for Q-Band Waveguide Gunn Oscillator With Resonance Post [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2001
The oscillation frequency tuning range of waveguide Gunn oscillator and its stability depend sensitively on the dimensions of the resonator. Therefore the embedding impedances with the various dimensions of the resonator for Q-band (33~50 GHz) Gunn ...
Hyungjoo Kim   +6 more
doaj  

Spatial modifications of three-dimensional elliptic Gaussian beam scattered by two-dimensional periodic array.

open access: yesAdvanced Electromagnetics, 2012
The diffraction problem of a three-dimensional elliptic p- polarized Gaussian beam on an aperture array of rectangular holes is solved. The new algorithm for the solution of three-dimensional scattering problems of linearly polarized wave beams on two ...
A. Gribovsky, O. Yeliseyev
doaj   +1 more source

Resolving Moving Heliospheric Structures Using Interplanetary Scintillation Observations With the Murchison Widefield Array

open access: yesSpace Weather, 2023
We have conducted a blind search in 49 consecutive days of interplanetary scintillation observations made by the Murchison Widefield Array from mid‐2019, with overlapping daily observations approximately East and South‐East of the Sun at an elongation of
A. Waszewski   +6 more
doaj   +1 more source

Ruddlesden–Popper Defects Act as a Free Surface: Role in Formation and Photophysical Properties of CsPbI3

open access: yesAdvanced Materials, EarlyView.
This work investigates Ruddlesden–Popper (RP) defects in vapor‐deposited CsPbI3 thin films using electron microscopy, density functional theory, and optoelectronic measurements. The atomic positions at the planar defect are found comparable to those of a free surface, revealing their role in phase stabilization.
Weilun Li   +7 more
wiley   +1 more source

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