Results 81 to 90 of about 5,383 (243)

A first comparison of irregularity and ion drift velocity measurements in the E-region [PDF]

, 2006
International audienceE-region irregularity velocity measurements at large flow angles with the STARE Finland coherent VHF radar are considered in context of the ion and electron velocity data provided by the EISCAT tristatic radar system, CUTLASS ...
J. A. Davies, A. Senior, Makarevich, R. A., P. L. Dyson, Milan, S. E., I. W. McCrea, Honary, F., A. V. Koustov, Dyson, P. L., R. A. Makarevich, Senior, A., V. S. C. Howells, Davies, J. A., S. E. Milan, Koustov, A. V., Howells, V. S. C., McCrea, I. W., F. Honary   +17 more
core   +1 more source

High‐Performance Solid‐State Lithium Batteries via Dipole‐Matching: Enabling Compact Polymer Microstructure and Stable Interfaces

Carbon Energy, EarlyView.
A dipole–matching strategy is proposed to engineer PVDF‐HFP solid polymer electrolytes by incorporating 3,5–bis(trifluoromethyl)benzoic acid. Dipole interactions regulate polymer nucleation and phase alignment, forming compact microstructures, while controlled FSI– decomposition induces a LiF–rich interphase, enabling fast Li+ transport, uniform ...
Ya Song, Haotian Qu, Bosi Huang, Jie Tang, Yanfei Zhu, Wenqiang Fang, Zijun Li, Zhoujie Lao, Zhuozhao Wu, Xian Wu, Jinlong Yang, Guangmin Zhou   +11 more
wiley   +1 more source

Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere [PDF]

, 2005
International audienceExperimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the EISCAT HF Heating facility located near Tromsø, Norway, allowing HF ...
N. F. Blagoveshchenskaya, Bösinger, T., Rietveld, M. T., B. Thidé, Thidé, B., Borisova, T. D., T. D. Borisova, M. T. Rietveld, Kosch, M. J., V. A. Kornienko, M. J. Kosch, Blagoveshchenskaya, N. F., Kornienko, V. A., T. Bösinger   +13 more
core   +1 more source

Multi-frequency observations of E-region HF radar aurora [PDF]

Annales Geophysicae, 2003
Multi-frequency observations of E-region coherent backscatter from decametre waves reveal that auroral echoes tend to comprise two spectral components superimposed, one at low Doppler shifts, below 250 ms-1, and the other Doppler shifted to near ...
S. E. Milan, M. Lester, N. Sato
doaj   +1 more source

Machine Learning Paradigm for Advanced Battery Electrolyte Development

Carbon Energy, EarlyView.
Electrolyte materials determine ion transport kinetics within the bulk and interphases, ultimately influencing the performance of battery systems. As data‐driven paradigms increasingly reshape materials discovery, this review provides an application‐oriented exploration of the intersection between machine learning and electrolyte science. By evaluating
Chang Su, Mengfan Pei, Keyu Chen, Xigao Jian, Fangyuan Hu   +4 more
wiley   +1 more source

Interhemispheric comparison of spectral width boundary as observed by the SuperDARN radars [PDF]

, 2003
International audiencePrevious studies have shown that dayside equatorward edge of coherent HF radar backscatter having broad Doppler spectral width is coincident with the equatorward edge of the cusp particle precipitation.
Milan, S. E., N. Sato, T. Iyemori, T. Iyemori (7616135), Woodfield, E.E., Lester, M., A. S. Yukimatu, A. S. Yukimatu (7614353), M. Lester, N. Sato (7606136), Milan, S.E., M. Lester (7589660), K. Hosokawa, S. E. Milan, Yukimatu, A. S., Iyemori, T., K. Hosokawa (7606139), Hosokawa, K., E. E. Woodfield (7590071), E. E. Woodfield, Sato, N., Yukimatu, A.S., S. E. Milan (7594526), Woodfield, E. E.   +23 more
core   +1 more source

Towards a synthesis of substorm electrodynamics : HF radar and auroral observations [PDF]

, 2006
At 08:35 UT on 21 November 2004, the onset of an interval of substorm activity was captured in the southern hemisphere by the Far UltraViolet (FUV) instrument on board the IMAGE spacecraft. This was accompanied by the onset of Pi2 activity and subsequent
Tim K. Yeoman (7583066), P. L. Dyson, J. C. Devlin, H. U. Frey, Devlin, J. C., Parkinson, M. L., Lester, M., M. L. Parkinson (7591427), P. L. Dyson (7591430), Grocott, A., Dyson, P. L., M. Lester, M. L. Parkinson, H. U. Frey (7591265), Adrian Grocott (7590026), T. K. Yeoman, A. Grocott, Frey, H. U., Mark Lester (6477935), Yeoman, T. K., J. C. Devlin (7591433)   +20 more
core   +1 more source

HF radar probing of the lower magnetosphere [PDF]

Journal of Geophysical Research: Space Physics, 1997
The first observations of ion acoustic waves at altitudes of about 4000 km in the auroral zone were carried out using the powerful SURA HF radar in 1991. Here we report additional observations made with the Russian SURA radar and the Ukrainian UTR 2 receiving system in December 1992. Although echoes similar to the earlier observations were detected, we
D. L. Hysell, M. C. Kelley, A. V. Gurevich, A. N. Karashtin, A. M. Babichenko, Y. M. Yampolski, V. S. Beley, J. F. Providakes   +7 more
openaire   +1 more source

Interfacial Solvent Molecular Engineering via High‐Safety Dense Separators for High‐Rate Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The dense PPS‐separator prevents thermal runaway by allowing electron transfer through the steel needle during penetration, while the residual electrolyte enables brief ion migration and Joule heating, causing rapid electrolyte vaporization, collapse of the ion transport network, and a sharp drop in ionic conductivity.
Haitao Zhou, Jie Gu, Haiyun Zhou, Yihong Deng, Yafei Shi, Yang Yang, Chen Wang, Hongquan Gao, Jianchun Wu, Libo Wang, Xiangdong Huo   +10 more
wiley   +1 more source

Distributed Shipborne HFHSSWR Localisation Method Based on Gaussian Markov Fields

IET Radar, Sonar & Navigation
This paper investigates a distributed shipborne high‐frequency hybrid surface‐surface wave radar (HFHSSWR) model that combines shared sky wave paths with distinct shipboard surface wave paths.
Longyuan Xu, Peng Tong, Yinsheng Wei, Mingkai Ding   +3 more
doaj   +1 more source