Results 51 to 60 of about 501 (123)

Magnetic and Electromagnetic signals related to tectonic activity: updates and new analyses on measurements in Central Italy [PDF]

Natural Hazards and Earth System Sciences, 2005
Tectonomagnetic field observations from absolute magnetic field levels have been collected in Central Italy since 1989 by means of a network of four absolute magnetometer stations, including the geomagnetic observatory of L'Aquila (42°23 N, 13°19 E) used
D. Di Mauro, S. Lepidi, A. Meloni, P. Palangio   +3 more
doaj  

Saturn's Auroral Dusk Sector Magnetosphere‐Ionosphere Coupling During Cassini's Proximal Orbits

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The final twenty‐two low‐altitude passes of the Cassini spacecraft enabled the determination of Saturn's field‐aligned currents (FACs) from magnetometer measurements at lower altitudes than previously achieved. We investigate southern dusk‐side FAC behavior with four objectives: how in situ MAG measurements compare to the highly variable ...
S. W. Farr, S. V. Badman, L. C. Ray, G. Provan, J. Kinrade, L. S. Clare   +5 more
wiley   +1 more source

A Magnetospheric Source for Near‐Planet Whistler‐Mode Waves at Venus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract The presence or absence of lightning in the atmosphere of Venus has important implications for atmospheric chemistry, potential chemical signatures of life, identifying volcanic activity, and quantifying potential hazards to future exploration missions.
David M. Malaspina, Keirra D. Kernan, Katherine A. Goodrich, Yingjuan Ma, Shannon M. Curry   +4 more
wiley   +1 more source

Electron‐Driven Instabilities in Jupiter's Magnetodisc

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Thermal electrons in Jupiter's magnetodisc have been observed to be anisotropic with higher parallel temperature compared to perpendicular. In this work, we used previously‐derived electron properties (Sarkango et al., 2025, https://doi.org/10.1029/2025gl118209) to calculate electron β‖ ${\beta }_{\Vert }$ and compared the observed anisotropy ...
Y. Sarkango, A. H. Sulaiman, R. A. López, J. R. Szalay, R. Bandyopadhyay, F. Allegrini, R. W. Ebert, P. A. Damiano   +7 more
wiley   +1 more source

Polarization Properties of Whistler Waves From the First 17 Parker Solar Probe Encounters

Geophysical Research Letters
We present statistics on the polarization properties of whistler waves in the solar wind down to 0.05 AU (10.75 RS) using data from Parker Solar Probe's first 17 encounters.
L. Colomban, O. V. Agapitov, V. Krasnoselskikh, K.‐E. Choi, M. Kretzschmar, T. Dudok de Wit, F. S. Mozer, J. W. Bonnell, S. Bale, D. Malaspina, N. E. Raouafi, M. Pulupa   +11 more
doaj   +1 more source

Broadband dark matter axion detection using a cylindrical capacitor

Nuclear Physics B
Cosmological axions/axion-like particles can compose a significant part of dark matter; however, the uncertainty of their mass is large. Here, we propose to search the axions using a cylindrical capacitor, in which the static electric field converts dark
Wenming Chen, Yu Gao, Qiaoli Yang
doaj   +1 more source

Retrospective Study on Seismic Ionospheric Anomalies Based on Five-Year Observations from CSES

Remote Sensing
The China Seismo-Electromagnetic Satellite (CSES-01) is the first satellite of the space-based observational platform for the earthquake (EQ) monitoring system in China.
Rui Yan, Jianping Huang, Jian Lin, Qiao Wang, Zhenxia Zhang, Yanyan Yang, Wei Chu, Dapeng Liu, Song Xu, Hengxin Lu, Weixing Pu, Lu Wang, Na Zhou, Wenjing Li, Qiao Tan, Zeren Zhima   +15 more
doaj   +1 more source

A Closer Cooperation between Space and Seismology Communities – a Way to Avoid Errors in Hunting for Earthquake Precursors

Russian Journal of Earth Sciences
The space physicists and the earthquake (EQ) prediction community exploit the same instruments – magnetometers, but for different tasks: space physicists try to comprehend the global electrodynamics of near-Earth space on various time scales, whereas the
Pilipenko Vyacheslav, Shiokawa K.
doaj   +1 more source

改进YOLOv5的闪电哨声波轻量化自动检测模型

Kongjian kexue xuebao
提出一种改进YOLOv5(You-Only-Look-Once version 5)检测模型YOLOv5-Upgraded. 为了更快定位真实边框, 该模型将损失函数CIoU (Complete IoU)替换为SIoU(Scylla IoU); 同时为了避免网络训练过程中梯度消失、梯度爆炸以及神经元坏死等现象, 将激活函数SiLU(Sigmoid-weighted Linear Unit)替换为具有更好梯度流的Mish; 在主干网络中插入注意力 (Coordinate Attention, CA)机制,
路 超, 泽仁 志玛, 杨 德贺, 孙 晓英, 吕 访贤, 冉 子霖, 申 旭辉   +6 more
doaj   +1 more source

Nuclear quadrupole resonance spectroscopy with a femtotesla diamond magnetometer. [PDF]

Sci Adv, 2023
Silani Y, Smits J, Fescenko I, Malone MW, McDowell AF, Jarmola A, Kehayias P, Richards BA, Mosavian N, Ristoff N, Acosta VM.   +10 more
europepmc   +1 more source