Results 111 to 120 of about 4,752 (297)

Modeling Solar Oscillation Power Spectra. III. Spatiotemporal Spectra of Solar Granulation Velocity Field as Seen in HMI Velocity Measurements

The Astrophysical Journal
We suggest a physically motivated model of the uncorrelated background, which can be used to improve the accuracy of helioseismic frequency measurements when the background contributes significantly to the formation of spectral lines of acoustic ...
Sergei V. Vorontsov, Stuart M. Jefferies, Timothy P. Larson   +2 more
doaj   +1 more source

Magnetically Boosted Water‐Splitting Performance in Metallic Glasses

Advanced Science, EarlyView.
A strategy for boosting water electrolysis efficiency using ultralow magnetic fields on soft‐magnetic MG wires is reported. Ni40Fe40P20 metallic glass exhibits superior overall water‐splitting performance (1.51 V @ 1000 mA cm−2) at 100 Oe, enabled by spin polarization in periodic surface magnetic domains to enhance orbital hybridization and net spin ...
Chaoqun Pei, Zheng‐Jie Chen, Yuyang Qian, Zhichao Lu, Dong Ma, Jiang Ma, Tao Feng, Jing Peng, Baoan Sun, Weihua Wang   +9 more
wiley   +1 more source

ON APPLYING OF THE TIME SERIES ANALYSIS MEANS TO THE ESTIMATION OF THE SOLAR STRUCTURES ROTATION IN THE UPPER CHROMOSPHERE

Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2006
The Fourier analysis method of the time series is applied to the estimation of the rotation of structural formations in the Sun atmosphere, which are observed in the line НeI of 1083 nanometers from the Earth.
Ya.I. Zyelyk, N.N. Stepanian, O.A. Andryeyeva   +2 more
doaj  

Simultaneous Construction of Fast Equator, Poleward Meridional Flow, and Near-surface Shear Layer in Solar Magnetohydrodynamic Calculation

The Astrophysical Journal
We carry out an unprecedented high-resolution simulation for the solar convection zone. Our calculation reproduces the fast equator and near-surface shear layer (NSSL) of differential rotation and the near-surface poleward meridional flow simultaneously.
H. Hotta
doaj   +1 more source

Pressure‐Driven Phase Transition Unlocking Unique Eu2+ Luminescence in Li2SrSiO4 for Optical Sensing and White‐LEDs

Advanced Science, EarlyView.
This study demonstrates, for the first time, the use of a large‐format high‐pressure press to modify synthesized Li2SrSiO4:Eu2+,Cs+ phosphors after its preparation. The pressure treatment results in the formation of new materials with distinctive optical properties, opening pathways for the development of advanced LED devices and high‐performance ...
Przemysław Woźny, Peng Du, Teng Zheng, Junpeng Xue, Liang Peng, Shuailing Ma, Szymon Sobczak, Victor Lavín, Tian Cui, Marcin Runowski   +9 more
wiley   +1 more source

Development and application of a global magnetic field evolution model for the solar corona

, 2009
Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
core  

Dependence of the solar differential rotation and activity during the solar cycle no. 24

, 2022
Diferencijalna rotacija Sunca posljedica je gibanja plazme unutar konvektivne zone te je rezultat medudjelovanja plazme i jakih magnetskih polja.
Mihojević, Tomislav
core  

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Closed‐Loop Radiative Cooling Mulch Upcycled From Agricultural Residues for Efficient Soil Heat–Water Stress Mitigation

Advanced Science, EarlyView.
Conventional passive radiative cooling films rely on costly feedstocks and energy‐intensive fabrication, with poor end‐of‐life compatibility in agriculture. To address this challenge, a sustainable radiative cooling mulch (SRCM) is developed from waste maize leaves via spontaneous hydrogen‐bond self‐assembly.
Hao Li, Dong Lv, Yang Fu, Cancheng Jiang, Wenqi Wang, Ze Li, Lin Liang, Jiayu Du, Jie Tan, Yihao Zhu, Wenjie Liu, Lamfeddal Kouisni, Kaixin Lin, Chi Yan Tso   +13 more
wiley   +1 more source

Observation of solar photospheric magnetic fields and differential rotation

, 2003
This review about solar photospheric magnetic fields will follow the two traditionnal approaches to study these fields. I will first review some recent results about magnetic fields observed at small scales, from sunspots and active regions down to ...
N. Meunier
core   +1 more source