Results 41 to 50 of about 653,194 (341)

Deciphering solar magnetic activity: on grand minima in solar activity [PDF]

Frontiers in Astronomy and Space Sciences, 2015
The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood. There has been tremendous progress in the century since the discovery of solar magnetism - magnetism that ultimately ...
McIntosh, Scott W., Leamon, Robert J.
openaire   +3 more sources

Recurrent geomagnetic storms and relativistic electron enhancements in the outer magnetosphere: ISTP coordinated measurements [PDF]

, 1997
New, coordinated measurements from the International Solar-Terrestrial Physics (ISTP) constellation of spacecraft are presented to show the causes and effects of recurrent geomagnetic activity during recent solar minimum conditions.
Allen, J. H., Baker, D. N., Bargatze, L. F., Belian, R. D., Blake, J. B., Kanekal, S. G., Klecker, B., Li, X., Reeves, G. D., Sheldon, R. B., Spence, Harlan E., Turner, N.   +11 more
core   +2 more sources

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Review of recent observations of magnetic holes in the solar wind

Discover Space
Magnetic holes (MHs) are ubiquitous coherent structures within the solar wind, defined by localized depressions in the magnetic field. They are increasingly recognized as fundamental sites of energy conversion and particle energization, playing a crucial
C. Y. Li, Y. Wang, F. S. Wei, X. S. Feng, Z. K. Xu, Y. X. Lu, B. Y. Wang, P. B. Zuo, C. W. Jiang, X. J. Xu, Z. L. Zhou   +10 more
doaj   +1 more source

Solar Origins of Short-Term Periodicities in Near-Earth Solar Wind and Interplanetary Magnetic Field

Applied Sciences
This study investigates the solar origins of short-term periodicities in the near-Earth solar wind and interplanetary magnetic field (IMF) using long-term observations (1995–2024) and Potential Field Source Surface modeling.
Huichao Li, Yunxi Zhang, Jinzhou Bao, Botian Tang, Jiangrong Xie, Kangyan Wang   +5 more
doaj   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Dependence of GCRs influx on the Solar North-South Asymmetry

, 2011
We investigate the dependence of the amount of the observed galactic cosmic ray (GCR) influx on the solar North-South asymmetry using the neutron count rates obtained from four stations and sunspot data in archives spanning six solar cycles from 1953 to ...
Chang, Chang, Chang, Chang, Cho, Forbush, Georgieva, Georgieva, Georgieva, Goode, Heon-Young Chang, Ho-Sung Choi, Il-Hyun Cho, Jokipii, Krymsky, Kyung-Suk Cho, Lockwood, Nagashima, Sabbah, Simpson, Smith, Svensmark, Young-Deuk Park, Young-Sil Kwak, Zhang   +24 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

The disrupted jet stream and its influence on flight time during solar proton events

Scientific Reports
The long-chain effects of eruptive solar activities on Earth’s magnetosphere, ionosphere, and the mid-to-lower atmospheric circulation are an important theoretical research topic in the fields of space weather and atmospheric science.
Xiaoheng Xu, Yi Wang, Fengsi Wei, Xueshang Feng, Manhui Bo, Hongwu Tang, Diansheng Wang, Lei Bian, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Xiaojun Xu, Zilu Zhou, Zeng Li, Peng Zou, Yun Li, Liang Zeng, Xiaoxing Zhu   +17 more
doaj   +1 more source