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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
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Evaporation Rate of Water as a Function of a Magnetic Field and Field Gradient [PDF]
International Journal of Molecular Sciences, 2012 The effect of magnetic fields on water is still a highly controversial topic despite the vast amount of research devoted to this topic in past decades. Enhanced water evaporation in a magnetic field, however, is less disputed. The underlying mechanism for this phenomenon has been investigated in previous studies.
Yun-Zhu Guo +2 more
exaly +3 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
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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
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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
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VELOCITY GRADIENTS AS A TRACER FOR MAGNETIC FIELDS [PDF]
The Astrophysical Journal, 2017 Strong Alfvénic turbulence develops eddy-like motions perpendicular to the local direction of magnetic fields. This local alignment induces velocity gradients perpendicular to the local direction of the magnetic field. We use this fact to propose a new technique of studying the direction of magnetic fields from observations, the Velocity Gradient ...
González-Casanova, Diego F. +1 more
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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
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An instrument for sorting of magnetic microparticles in a magnetic field gradient [PDF]
Cytometry Part A, 2006 AbstractBackground:The goal of our bioassay technique is to demonstrate high throughput, highly parallel, and high sensitivity quantitative molecular analysis that will expand current biomedical research capabilities. To this end, we have built and characterized a magnetophoresis instrument using a flow chamber in a magnetic field gradient to sort ...
Michelle A, Espy +5 more
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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
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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
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