Results 141 to 150 of about 376,247 (350)

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Solar wind-magnetosphere coupling and the distant magnetotail: ISEE-3 observations [PDF]

, 1985
ISEE-3 Geotail observations are used to investigate the relationship between the interplanetary magnetic field, substorm activity, and the distant magnetotail.
Akasofu, S. I., Baker, D. N., Lepping, R. P., Sibeck, D. G., Slavin, J. A., Smith, E. J., Zwickl, R. D.   +6 more
core   +1 more source

The Influence of the Atmospheric Stability Conditions on the Available Wind Energy for Three Libyan Coastal Cities

Solar Energy and Sustainable Development, 2017
The lowest portion of the atmosphere is vital to lives, infrastructure, and activities. It means air quality, air motion and momentum, solar and wind energy, and weather safety measures. Wind speed observations at three different heights for three Libyan
A.A. Abdalla, W.B. El-Osta, E. I. Dekam
doaj  

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Fabry-Perot interferometer observations of sustained strong vertical wind activity in the auroral thermosphere

Frontiers in Astronomy and Space Sciences
The vertical component of the neutral wind velocity is critical for understanding the thermospheric dynamics at high latitudes. The neutral vertical wind circulation, driven by auroral activity, redistributes heat and momentum within the lower and upper ...
J. W. Meriwether, M. F. Larsen, L. A. Navarro, D. L. Hampton   +3 more
doaj   +1 more source

Impact of sudden stratospheric warmings on the neutral density, temperature and wind in the MLT region [PDF]

, 2023
Baozhu Zhou, Wen Yi, Xianghui Xue, Hailun Ye, Jie Zeng, Guozhu Li, Masaki Tsutsumi, Njål Gulbrandsen, Tingdi Chen, Xiankang Dou   +9 more
openalex   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Structural evolution of long‐duration meteor trail irregularities driven by neutral wind [PDF]

, 2014
Guozhu Li, Baiqi Ning, Yen‐Hsyang Chu, Iain M. Reid, Li-Peng Hu, B. K. Dolman, Jiangang Xiong, Guoying Jiang, Guotao Yang, Chunxiao Yan   +9 more
openalex   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source

RESPONSE OF THE NEUTRAL WIND TO INTENSE GEOMAGNETIC STORMS

, 2019
Perturbations of the ionosphere related to geomagnetic storms have been an object of a close attention of ionospheric researchers for several decades and therefore are relatively well known. Effects of geomagnetic storms to atmospheric parameter have been studied.
openaire   +2 more sources