Results 91 to 100 of about 6,250 (188)

Investigation of Noise Reduction and SNR Enhancement in Search Coil Magnetometers at Low Frequencies

, 2014
Here, a generalized induction coil sensor model, more generalized than other models, has been considered and the equivalent magnetic field of the coil thermal noise and the sensor signal to noise ratio are calculated theoretically based on the dimensions and geometry of the coil winding and its core.
Nourmohammadi, Abolghasem, Feiz, Seyed Mohammad Hassan, Asteraki, Mohammad Hassan   +2 more
openaire   +2 more sources

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

An Improved Neutron Electric Dipole Moment Experiment

, 2008
A new measurement of the neutron EDM, using Ramsey's method of separated oscillatory fields, is in preparation at the new high intensity source of ultra-cold neutrons (UCN) at the Paul Scherrer Institute, Villigen, Switzerland (PSI).
Altarev, I., Ban, G., Bison, G., Bodek, K., Burghoff, M., Daum, M., Eberhardt, K., Fierlinger, P., Gutsmiedl, E., Hampel, G., Heil, W., Henneck, R., Khomutov, N., Kirch, K., Kistryn, St., Knappe-Grueneberg, S., Knecht, A., Knowles, P., Kratz, J. V., Kuźniak, M., Lauer, T., Lauss, B., Lefort, T., Mtchedlishvili, A., Naviliat-Cuncic, O., Paul, S., Pazgalev, A. S., Petzold, G., Plonka-Spehr, C., Quéméner, G., Rebreyend, D., Roccia, S., Rogel, G., Sander-Thoemmes, T., Schnabel, A., Severijns, N., Sobolev, Yu., Stoepler, R., Trahms, L., Tur, M., Weis, A., Wiehl, N., Zejma, J., Zsigmond, G.   +43 more
core   +1 more source

Analysis of magnetometer data/wave signals in the Earth's magnetosphere [PDF]

Work on the reduction and analysis of Dynamics Explorer (DE) satellite magnetometer data with special emphasis on the ULF fluctuations and waves evident in such data is described.
Engebretson, Mark J.
core   +1 more source

Vector magnetometer design study: Analysis of a triaxial fluxgate sensor design demonstrates that all MAGSAT Vector Magnetometer specifications can be met [PDF]

The design of the vector magnetometer selected for analysis is capable of exceeding the required accuracy of 5 gamma per vector field component. The principal elements that assure this performance level are very low power dissipation triaxial feedback ...
Adams, D. F., Hartmann, U. G., Lazarow, L. L., Maloy, J. O., Mohler, G. W.   +4 more
core   +1 more source

Magnetic monopoles at the LHC and in the Cosmos

, 2013
The magnetic monopole was postulated in 1931 by Dirac to explain electric charge quantisation. Searches for pair-produced monopoles are performed at accelerator facilities whenever a new energy regime is made available. In addition, monopoles with masses
Mermod, P.
core  

Cluster: A fleet of four spacecraft to study plasma structures in three dimensions [PDF]

The four Cluster spacecraft are spin stabilized spacecraft which are designed and built under stringent requirements as far as electromagnetic cleanliness is concerned.
Goldstein, M. L., Schmidt, R.
core   +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