Results 91 to 100 of about 107,429 (338)

Origin of electron cyclotron maser-induced radio emissions at ultra-cool dwarfs: magnetosphere-ionosphere coupling currents

, 2012
A number of ultra-cool dwarfs emit circularly polarised radio waves generated by the electron cyclotron maser instability. In the solar system such radio is emitted from regions of strong auroral magnetic field-aligned currents.
Burleigh, M. R., Casewell, S. L., Clarke, J. T., Cowley, S. W. H, Nichols, J. D., West, A. A., Wynn, G. A.   +6 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source

Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence

Advanced Functional Materials, EarlyView.
Well‐structured graphene hybrid architectures featuring spatially resolved fluorescent properties represent a promising but so‐far elusive synthetic target. A robust and straightforward method for fabricating well‐organized graphene‐dye hybrid nanoassemblies through a combination of reductive patterning and conventional click chemistry is presented ...
Sabrin Al‐Fogra, Bowen Yang, Boris Morozov, Filip Božinović, Elena A. Mack, Sijia Feng, Evgeny A. Kataev, Norbert Jux, Dirk M. Guldi, Heiko Weber, Frank Hauke, Andreas Hirsch, Tao Wei   +12 more
wiley   +1 more source

Advection-nonlinear-diffusion Model of Flare Accelerated Electron Transport in Type III Solar Radio Bursts

The Astrophysical Journal
Electrons accelerated by solar flares and observed as type III solar radio bursts are not only a crucial diagnostic tool for understanding electron transport in the inner heliosphere but also a possible early indication of potentially hazardous space ...
Eduard P. Kontar, Francesco Azzollini, Olena Lyubchyk   +2 more
doaj   +1 more source

Imaging spectroscopy of solar radio burst fine structures

Nature Communications, 2017
Radio observations of the solar atmosphere provide a unique view on the non-thermal processes in the outer atmosphere. Here the authors use LOFAR observations to demonstrate that the observed radio burst characteristics are dominated by propagation ...
E. P. Kontar, S. Yu, A. A. Kuznetsov, A. G. Emslie, B. Alcock, N. L. S. Jeffrey, V. N. Melnik, N. H. Bian, P. Subramanian   +8 more
doaj   +1 more source

Satellite observations of type 3 solar radio bursts at low frequencies [PDF]

Type III solar radio bursts were observed from 10 MHz to 10 KHz by satellite experiments above the terrestrial plasmasphere. Solar radio emission in this frequency range results from excitation of the interplanetary plasma by energetic particles ...
Fainberg, J., Stone, R. G.
core   +1 more source

Full‐Spectrum Solar Harvesting and Desalination Enabled by Supra‐Nano Amorphous Ruthenium Dioxide – Mineral Composites

Advanced Functional Materials, EarlyView.
A mineral‐based supra‐nano amorphous ruthenium dioxide composite (a‐Ru0.5‐AM) was designed, achieving 97% broadband solar absorption. Under one sun, it reaches 87.91 ± 0.32 °C with a distinct thermal buffering effect that favors thermal confinement.
Yunchen Long, Zhengyi Mao, Bowen Li, Xiujuan Hu, Xinxue Tang, Yuanchao Liu, Jia‐Hua Liu, Hongkun Li, Chong Wang, Hong Yue, Weihui Ou, Johnny Chung Yin Ho, Jian Lu, Yang Yang Li   +13 more
wiley   +1 more source

High-resolution Observational Features of Type I Solar Radio Bursts

The Astrophysical Journal
In this paper, we statistically studied the characteristic features of solar radio Type I bursts observed by Chashan broadband solar radio spectrometer at meter wavelengths from 00:06 to 07:28 UT on 2023 December 13.
Yuzhi Yang, Zongjun Ning, Yuxiang Song, Yijie Han, Xiaoyu Tang, Mingbao Gao, Hui Liu, Jingye Yan, Bing Wang, Shuwang Chang   +9 more
doaj   +1 more source

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

Magnetic Field Geometry and Anisotropic Scattering Effects on Solar Radio Burst Observations

The Astrophysical Journal
The fine structures of solar radio bursts reveal complex dynamics in the corona, yet the observed characteristics of these subsecond bursts are additionally complicated by radio wave scattering in the turbulent solar corona.
Daniel L. Clarkson, Eduard P. Kontar
doaj   +1 more source