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Altered neuromagnetic activity under visual stimuli in migraine: a multi-frequency magnetoencephalography study [PDF]

open access: yesFrontiers in Neurology
BackgroundMigraine is a chronic neurological disorder associated with a variety of abnormal visual symptoms. However, the mechanisms of visual processing in migraine are not fully understood.
Di Wu   +6 more
doaj   +2 more sources

Comparison Analysis on the Accuracy of Galileo PPP Using Different Frequency Combinations in Europe

open access: yesApplied Sciences, 2021
The Galileo constellations are characterized by transmitting GNSS signals on multi-frequencies, which can benefit the robustness and accuracy of the solutions.
Jia Song, Lewen Zhao
doaj   +1 more source

Multi-Frequency Magnetic Induction Tomography System and Algorithm for Imaging Metallic Objects

open access: yesSensors, 2021
Magnetic induction tomography (MIT) is largely focused on applications in biomedical and industrial process engineering. MIT has a great potential for imaging metallic samples; however, there are fewer developments directed toward the testing and ...
Gavin Dingley, Manuchehr Soleimani
doaj   +1 more source

Inkjet 3D Printed MEMS Electromagnetic Multi-Frequency Energy Harvester

open access: yesEnergies, 2022
Multi-frequency operation is an interesting and desired feature of electromagnetic energy harvesters. This work presents results of investigations on an inkjet 3D-printed miniature multi-frequency electromagnetic energy harvester.
Bartosz Kawa   +2 more
doaj   +1 more source

Frequency Domain Electromagnetic System Based on Unmanned Aerial Vehicles Platform for Detecting Shallow Subsurface Targets

open access: yesRemote Sensing, 2023
Due to the advantages of being nondestructive, rapid, and convenient, the electromagnetic detection method has attracted growing interest in the field of shallow subsurface detection. With the rapid development of unmanned aerial vehicle (UAV) technology,
Shiyan Li, Kang Xing, Xiaojuan Zhang
doaj   +1 more source

Parallel Computation of Multi-GNSS and Multi-Frequency Inter-Frequency Clock Biases and Observable-Specific Biases

open access: yesRemote Sensing, 2023
With the widespread application of GNSS, the delicate handling of biases among different systems and different frequencies is of critical importance, wherein the inter-frequency clock biases (IFCBs) and observable-specific signal biases (OSBs) should be ...
Linyang Li, Zhen Yang, Zhen Jia, Xin Li
doaj   +1 more source

Performance Analysis of Zero-Difference GPS L1/L2/L5 and Galileo E1/E5a/E5b/E6 Point Positioning Using CNES Uncombined Bias Products

open access: yesRemote Sensing, 2022
The modernization of Global Navigation Satellite System (GNSS) including the transmission of signals on multiple frequencies has greatly promoted the development of the popular PPP (Precise Point Positioning) technique. A key issue of multi-frequency PPP
Lei Zhao, Paul Blunt, Lei Yang
doaj   +1 more source

Towards continuous EIT monitoring for hemorrhagic stroke patients

open access: yesFrontiers in Physiology, 2023
The practical implementation of continuous monitoring of stroke patients by Electrical Impedance Tomography (EIT) is addressed. In a previous paper, we have demonstrated EIT sensitivity to cerebral hemodynamics, using scalp-mounted electrodes, very low ...
Taweechai Ouypornkochagorn   +2 more
doaj   +1 more source

Evaluation of BDS/GPS Multi-Frequency RTK Positioning Performance under Different Baseline Lengths

open access: yesRemote Sensing, 2022
The BeiDou Navigation Satellite System (BDS) is fully operational and provides positioning, navigation, and timing services to users worldwide. To comprehensively evaluate the BeiDou-3 Navigation Satellite System (BDS-3) global real-time kinematic (RTK ...
Ershen Wang   +6 more
doaj   +1 more source

NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor

open access: yesSensors, 2020
A dual-frequency all-in-one Global Navigation Satellite System (GNSS) receiver with a multi-core 32-bit RISC (reduced instruction set computing) application processor was integrated and manufactured as a System-on-Chip (SoC) in a 110 nm CMOS ...
Tomasz Borejko   +11 more
doaj   +1 more source

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