Results 31 to 40 of about 195,278 (309)

Life on magnets: stem cell networking on micro-magnet arrays. [PDF]

PLoS ONE, 2013
Interactions between a micro-magnet array and living cells may guide the establishment of cell networks due to the cellular response to a magnetic field.
Vitalii Zablotskii, Alexandr Dejneka, Šárka Kubinová, Damien Le-Roy, Frédéric Dumas-Bouchiat, Dominique Givord, Nora M Dempsey, Eva Syková   +7 more
doaj   +1 more source

Quadratic magnetic gradients from seven- and nine-spacecraft constellations [PDF]

Annales Geophysicae
To uncover the dynamics of magnetized plasma, it is crucial to determine the geometric structure of the magnetic field, which depends on its linear and quadratic spatial gradients.
C. Shen, G. Zeng, R. Kieokaew, Y. Zhou
doaj   +1 more source

Strong magnetic field effect on the nucleation of a highly undercooled Co-Sn melt

Scientific Reports, 2017
High magnetic field is a powerful tool to tune the microstructure and improve the properties of materials. In this report, the nucleation behavior of undercooled Co76Sn24 near eutectic alloy under strong homogeneous and gradient magnetic fields have been
Jun Wang, Yixuan He, Jinshan Li, Hongchao Kou, Eric Beaugnon   +4 more
doaj   +1 more source

Magnetic susceptibility inversion method with full tensor gradient data using low-temperature SQUIDs

Petroleum Science, 2019
Full tensor magnetic gradient measurements are available nowadays. These are essential for determining magnetization parameters in deep layers. Using full or partial tensor magnetic gradient measurements to determine the subsurface properties, e.g ...
Yan-Fei Wang, Liang-Liang Rong, Long-Qing Qiu, D. V. Lukyanenko, A. G. Yagola   +4 more
doaj   +1 more source

Magnetic Calibration Method Based on Magnetic Gradient Measurement [PDF]

Hangkong bingqi
Before aircraft heading measurement by using a tri-axial magnetic sensor or magnetic anomaly detection, magnetic interference calibration of the magnetic sensor is required.
Jin Huanghuang, Zhuang Zhihong, Wang Hong
doaj   +1 more source

Two-Point Positioning Method with Magnetic Gradient Tensor Invariant Constraints

水下无人系统学报, 2023
Single-point magnetic gradient tensor positioning methods are greatly affected by geomagnetic field estimation errors, and multi-point magnetic gradient tensor positioning methods are easy to get trapped in local optima.
Cheng CHI, Dan WANG, Zhentao YU, Lu YU, Feng QIN, Shangming ZHU   +5 more
doaj   +1 more source

Magnetization oscillation of a spinor condensate induced by a magnetic field gradient [PDF]

Physical Review A, 2011
We study the spin mixing dynamics of ultracold spin-1 atoms in a weak non-uniform magnetic field with field gradient $G$, which can flip the spin from +1 to -1 so that the magnetization $m=ρ_{+}-ρ_{-}$ is not any more a constant. The dynamics of $m_F=0$ Zeeman component $ρ_{0}$, as well as the system magnetization $m$, are illustrated for both ...
Zhang, Jie, Yang, Baoguo, Zhang, Yunbo
openaire   +2 more sources

A method for improving the performance of gradient systems for diffusion-weighted MRI

, 2007
The MR signal is sensitive to diffusion. This effect can be increased by the use of large, balanced bipolar gradients. The gradient systems of MR scanners are calibrated at installation and during regular servicing visits.
Daniel C. Alex, Zoltan Nagy, Ralf Deichmann, Weiskopf, N. ; https://orcid.org/, Alexander, D., Nagy, Z., Nagy, Zoltan, Deichmann, R., Alexander, Daniel C., Weiskopf, Nikolaus, Deichmann, Ralf, Nikolaus Weiskopf   +11 more
core   +1 more source

Design method of magnetic resonance biplanar gradient coil based on target field method and stream function

Frontiers in Physics
The gradient coil is a crucial component of the magnetic resonance imaging (MRI) system, responsible for generating linear gradient magnetic fields to facilitate spatial positioning for image reconstruction. This article combines a new target field point
Qingming Huang, Qingming Huang, Luying Huang, Luying Huang, Haikang Zhang, Yicheng Huang, Yicheng Huang, Wentao Wang, Yunzhang Cheng, Bing Shen, Bing Shen   +10 more
doaj   +1 more source

High Sensitivity Planar Hall Effect Magnetic Field Gradiometer for Measurements in Millimeter Scale Environments

Micromachines, 2022
We report a specially designed magnetic field gradiometer based on a single elliptical planar Hall effect (PHE) sensor, which allows measuring magnetic field at nine different positions in a 4 mm length scale.
Hariharan Nhalil, Moty Schultz, Shai Amrusi, Asaf Grosz, Lior Klein   +4 more
doaj   +1 more source