Results 31 to 40 of about 127,907 (304)

Artificial optical emissions at HAARP for pump frequencies near the third and second electron gyro-harmonic [PDF]

open access: yes, 2005
International audienceHigh-power high-frequency radio waves beamed into the ionosphere cause plasma turbulence, which can accelerate electrons. These electrons collide with the F-layer neutral oxygen causing artificial optical emissions identical to ...
F. T. Djuth   +17 more
core   +1 more source

The magnetic field near power lines in the Moscow region: the results of measurements and their analyze [PDF]

open access: yesСаратовский научно-медицинский журнал, 2014
The aim: to analyze the real power frequency magnetic field (50 Hz) values near power lines. The material. Long-term measurements of the power frequency magnetic field (50 Hz) near power lines of 110 kV, 220 kVand 500 kVin the Moscow region.
Prokofyeva A.S., Grigoriev O.A.
doaj  

Longitudinal spatial characterisation of optical fibre erbium distributed feedback laser under the motion of steady magnetic field

open access: yes, 2014
The spatial sensitivity of an erbium doped optical fibre distributed feedback (DFB) laser to an external magnetic field is reported. Intrinsic birefringence of the laser cavity allows lasing in two orthogonal modes.
Yuan Yao   +3 more
core   +1 more source

Resonance Cones in the Field Pattern of a Short Radio Frequency Probe in a Warm Anisotropic Plasma [PDF]

open access: yes, 1970
An experimental investigation of the angular field pattern of a small radio frequency probe in a plasma in a magnetic field is described. The field is observed to become very large along a resonance cone whose axis is parallel to the static magnetic ...
Fisher, R. K., Fisher, Raymond Kurt
core   +1 more source

Magnetic frequency response of High-Luminosity Large Hadron Collider beam screens

open access: yesPhysical Review Accelerators and Beams, 2019
Magnetic fields used to control particle beams in accelerators are usually controlled by regulating the electrical current of the power converters. In order to minimize lifetime degradation and ultimately luminosity loss in circular colliders, current ...
M. Morrone   +4 more
doaj   +1 more source

Magnetic field at geosynchronous orbit during high-speed stream-driven storms: Connections to the solar wind, the plasma sheet, and the outer electron radiation belt [PDF]

open access: yes, 2010
Superposed-epoch analysis is performed on magnetic field measurements from five GOES spacecraft in geosynchronous orbit during 63 high-speed stream-driven storms in 1995–2005. The field strength and the field stretching angle are examined as functions of
Joseph E. Borovsky   +3 more
core   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Harvesting energy from magnetic fields to power condition monitoring sensors

open access: yes, 2013
Condition monitoring is playing an increasingly important role within electrical power networks, where its use can help to reduce maintenance costs, improve supply reliability and permit increased utilization of equipment capacity by providing a measure ...
Judd, Martin, Roscoe, Nina
core   +1 more source

Observation of a nonlinear phenomenon of the density fluctuations on zheda plasma experiment device (ZPED)

open access: yesAIP Advances, 2019
An O-mode microwave reflectometry system has been developed to measure the density fluctuation on Zheda Plasma Experiment Device (ZPED). The microwave frequency range of this diagnostic system is from 10 GHz to 18 GHz, corresponding to the cutoff ...
W. W. Xiao   +6 more
doaj   +1 more source

PFMD: A Power Frequency Magnetic Anomaly Signal Detection Scheme Based on Synchrosqueezed Wavelet Transform

open access: yesApplied Sciences, 2022
Magnetic anomaly signal detection (MASD) is a passive method for the detection of visually obscured ferromagnetic objects. This paper proposes a new method for MASD based on the ambient field of power frequency magnetic (power transmission line system ...
Bin Tian   +5 more
doaj   +1 more source

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