Results 1 to 10 of about 784,718 (264)

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

Multi-frequency therapeutic ultrasound: A review

open access: yesUltrasonics Sonochemistry, 2023
Focused ultrasound is a noninvasive, radiation-free and real-time therapeutic approach to treat deep-seated targets, which benefits numerous diseases otherwise requiring surgeries. Treatment efficiency is one of the key factors determining therapeutic outcomes, but improving it solely by increasing the total power can be limited by the performance of ...
Lou Xin, Dong Zhang, Yongqin Xiong
exaly   +4 more sources

GNSS-IR Snow Depth Retrieval from Multi-GNSS and Multi-Frequency Data

open access: yesRemote Sensing, 2021
Global navigation satellite system interferometric reflectometry (GNSS-IR) represents an extra method to detect snow depth for climate research and water cycle managing. However, using a single frequency of GNSS-IR for snow depth retrieval is often found
Jinsheng Tu   +9 more
doaj   +3 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

Multi-frequency resonant clocks [PDF]

open access: yes2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015
Clock distribution networks consume a significant portion of total chip power in high-performance designs. Resonant clocks are one proposed method to lower this power in modern designs as well as a fewer required clock buffers. Recent resonant solutions are limited to optimal performance at one particular frequency which is problematic since dynamic ...
Guthaus, Matthew   +2 more
openaire   +2 more sources

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

Home - About - Disclaimer - Privacy