Results 91 to 100 of about 6,042 (298)

Interplanetary Type III Radio Emission Locations Deduced from the Underlying Electron Exciter Beam Kinematics

The Astrophysical Journal
Direction-finding techniques from spacecraft have been used to locate and track interplanetary type III radio sources for many decades. These source locations are typically found to be farther from the Sun than expected on the bases of interplanetary ...
Michael J. Reiner
doaj   +1 more source

RETRACTED: Quantitative prediction of type II solar radio emission from the Sun to 1 AU

Geophysical Research Letters, 2016
Coronal mass ejections (CMEs) are frequently associated with shocks and type II solar radio bursts. Despite involving fundamental plasma physics and being the archetype for collective radio emission from shocks, type II bursts have resisted detailed ...
J. M. Schmidt, Iver H. Cairns
doaj   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

Quasi-periodic modulation of solar and stellar flaring emission by magnetohydrodynamic oscillations in a nearby loop [PDF]

, 2006
We propose a new model for quasi-periodic modulation of solar and stellar flaring emission. Fast magnetoacoustic oscillations of a non-flaring loop can interact with a nearby flaring active region.
V. M. Nakariakov, Verwichte, E., Foullon, Claire, N. P. Young, Nakariakov, V.M., Young, N. P., Foullon, C. (Claire), Young, N.P., Verwichte, E. (Erwin), C. Foullon, E. Verwichte, Nakariakov, V. M. (Valery M.)   +11 more
core   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Small-scale Inhomogeneity Effects on Coherent Solar Radio Emission

The Astrophysical Journal
The coherent radio emission mechanism of solar radio bursts (SRBs) is one of the most complicated and controversial topics in solar physics. To clarify the mechanism(s) of different types of SRBs, (radio-) wave excitation by energetic electrons in ...
Xiaowei Zhou, Patricio A. Muñoz, Jan Benáček, Lijie Zhang, Dejin Wu, Ling Chen, Zongjun Ning, Jörg Büchner   +7 more
doaj   +1 more source

Particle acceleration in the presence of weak turbulence at an X-type neutral point [PDF]

, 2012
We simulate the likely noisy situation near a reconnection region by superposing many 2D linear reconnection eigenmodes. The superposition of modes on the steady state X-type magnetic field creates multiple X- and O-type neutral points close to the ...
Petkaki, P., MacKinnon, A.L., Burge, C. A., MacKinnon, A. L., Burge, C.A.   +4 more
core   +1 more source

In Situ Regenerative Adduct Assisted p‐Type Doping of Organic Semiconductor

Advanced Materials, EarlyView.
An in situ regenerative adduct‐assisted (IRAA) doping strategy is introduced for p‐type doping of organic semiconductors. A regenerating adduct serves as the dopant, enabling highly efficient doping with a choice of counterions. The generality of this approach provides a scalable route to dope a wide range of hole‐transport materials with high thermal ...
Brijesh K. Patel, Arya Vidhan, Shubham Gupta, Vaishali Arunachalam, Simantini Nayak, Neeraj Bhatt, Ravi Shankar Singh, Shaibal K. Sarkar, Pabitra K. Nayak   +8 more
wiley   +1 more source

Solar emission levels at low radio frequencies

, 1990
Solar radio emission could seriously interfere with observations made by a low frequency (1 to 10 MHz) array in space. International Sun-Earth Explorer (ISEE-3) radio data were used to determine solar emission level.
Erickson, W. C.
core  

A Poor’s Man Approach to Solar Radio Emission Characterization [PDF]

Proceedings of the 4th URSI Atlantic RadioScience Conference – AT-RASC 2024
The Sun (both the photosphere and the corona) is a strong source of radiation across the entire RF spectrum. Under some particular circumstances, Sun noise may heavily interfere with ground receivers for communication satellites or deep space probes, causing degradation, or even destruction, of the useful signal.
Fabiola Sapienza, Filippo Giannetti, Attilio Vaccaro   +2 more
openaire   +1 more source