Results 1 to 10 of about 578,037 (201)
Magnetic Field Gradient-Based EKF for Velocity Estimation in Indoor Navigation [PDF]
Sensors, 2020 This paper proposes an advanced solution to improve the inertial velocity estimation of a rigid body, for indoor navigation, through implementing a magnetic field gradient-based Extended Kalman Filter (EKF). The proposed estimation scheme considers a set
Makia Zmitri +2 more
doaj +2 more sources
Gradient Technique Theory: Tracing Magnetic Field and Obtaining Magnetic Field Strength
The Astrophysical JournalThe gradient technique is a promising tool with theoretical foundations based on the fundamental properties of MHD turbulence and turbulent reconnection.
Alex Lazarian +2 more
doaj +3 more sources
Josephson Tunnel Junctions in a Magnetic Field Gradient [PDF]
Applied Physics Letters, 2011 We measured the magnetic field dependence of the critical current of high quality Nb-based planar Josephson tunnel junctions in the presence of a controllable non-uniform field distribution.
Koshelets, Valery +2 more
core +7 more sources
Photonics, 2023 Inside a spin-exchange relaxation-free (SERF) co-magnetometer with a high-pressure buffer gas atomic cell, the magnetic field gradient causes the decoherence of atomic spins to produce magnetic-field gradient relaxation.
Xiujie Fang +7 more
doaj +1 more source
Design and verification of a novel high gradient quadrupole magnet
He jishu, 2022 BackgroundHigh gradient quadrupole magnet has become a key element with the development of diffraction-limited storage ring for the fourth generation light source.
ZHU Ya, ZHANG Qinglei, ZHOU Qiaogen
doaj +1 more source
Results in Physics, 2023 The combination of high-permeability ferrite and coils is often used to nullify ambient magnetic fields and is widely used in applications such as magnetic resonance imaging and high-sensitivity magnetic sensors.
Kun Wang +6 more
doaj +1 more source
Magnetic Field Gradient Across the Flank Magnetopause
Frontiers in Astronomy and Space Sciences, 2021 Magnetic pressure inside the magnetopause is usually balanced with a sum of thermal plasma and magnetic pressures on the magnetosheath side. However, observations reveal that the magnetosheath magnetic field can be frequently larger than that in the ...
Zdeněk Němeček +4 more
doaj +1 more source
Shiyou shiyan dizhi, 2023 Nuclear magnetic resonance(NMR) logging instruments generally measure the NMR signal of reservoir fluid in a uniform field with a resonance frequency of 2 MHz or a gradient field with a resonance frequency of less than 1 MHz.
Yang LIU +4 more
doaj +1 more source
Compensation of gradient-induced magnetic field perturbations [PDF]
Journal of Magnetic Resonance, 2008 Pulsed magnetic field gradients are essential for MR imaging and localized spectroscopy applications. However, besides the desired linear field gradients, pulsed currents in a strong external magnetic field also generate unwanted effects like eddy currents, gradient coil vibrations and acoustic noise.
Terence W, Nixon +3 more
openaire +2 more sources
Wave propagation analysis of magnetic nanotubes conveying nanoflow
SN Applied Sciences, 2022 According to the nonlocal strain gradient theory, wave propagation in magnetic nanotubes conveying magnetic nanoflow under longitudinal magnetic field is inspected.
Reza Bahaadini, Ali Reza Saidi
doaj +1 more source