Results 11 to 20 of about 888,165 (269)

MRI-guided robotic arm drives optogenetic fMRI with concurrent Ca2+ recording

open access: yesNature Communications, 2019
Fiber optic implantation in deep areas of the rodent’s brain for MRI combined with optogenetics is challenging. Here the authors use an MRI-guided robotic arm as the navigation method for accurate fiber optic placement and precise microinjection during ...
Yi Chen   +4 more
doaj   +1 more source

Topological control of magnetic textures

open access: yesPhysical Review B, 2021
A micromagnetic study is carried out on the role of using topology to stabilize different magnetic textures, such as a vortex or an anti-vortex state, in a magnetic heterostructure consisting of a Permalloy disk coupled to a set of nanomagnetic bars. The topological boundary condition is set by the stray field contributions of the nanomagnet bars and ...
H. Arava   +3 more
openaire   +3 more sources

Characterization of Tensile Stress-Dependent Directional Magnetic Incremental Permeability in Iron-Cobalt Magnetic Sheet: Towards Internal Stress Estimation through Non-Destructive Testing

open access: yesSensors, 2022
Iron-Cobalt ferromagnetic alloys are promoted for electrical energy conversion in aeronautic applications, but their high magnetostrictive coefficients may result in undesired behaviors.
Borel Toutsop   +4 more
doaj   +1 more source

Magnetic control of Leidenfrost drops [PDF]

open access: yesPhysical Review E, 2012
We show how a magnetic field can influence the motion of a paramagnetic drop made of liquid oxygen in a Leidenfrost state on solids at room temperature. It is demonstrated that the trajectory can be modified in both direction and velocity and that the results can be interpreted in terms of classical mechanics as long as the drop does not get too close ...
Piroird, Keyvan   +2 more
openaire   +4 more sources

Magnetically controlled ferromagnetic swimmers [PDF]

open access: yesScientific Reports, 2017
AbstractMicroscopic swimming devices hold promise for radically new applications in lab-on-a-chip and microfluidic technology, diagnostics and drug delivery etc. In this paper, we demonstrate the experimental verification of a new class of autonomous ferromagnetic swimming devices, actuated and controlled solely by an oscillating magnetic field.
Hamilton, JK   +5 more
openaire   +3 more sources

Controlling magnetic coupling in bi-magnetic nanocomposites

open access: yesNanoscale, 2019
Correlation between synthesis technique, resulting in different levels of particle agglomeration at the microscopic scale, and magnetic coupling in nanocomposites.
F. Sayed   +8 more
openaire   +5 more sources

Research on reference frames and reference networks in Poland in 2019–2022

open access: yesAdvances in Geodesy and Geoinformation, 2023
The article presents the reviewed and summarised research activities of Polish research groups on reference frames and reference networks in a period of 2019–2022.
Jan Kryński, Tomasz Liwosz
doaj   +1 more source

Dental And Bone Microtissue Construction Based On Magnetic Nanoparticles

open access: yesInternational Dental Journal
Aim or purpose: Magnetic control technology based on magnetic nanoparticles (MNPs) has improved the efficiency and accuracy of microtissue construction, and shortened the culture time.
Guangzheng Yang
doaj   +1 more source

Physical limits to magnetogenetics

open access: yeseLife, 2016
This is an analysis of how magnetic fields affect biological molecules and cells. It was prompted by a series of prominent reports regarding magnetism in biological systems.
Markus Meister
doaj   +1 more source

Mobile Ultrasound Tracking and Magnetic Control for Long‐Distance Endovascular Navigation of Untethered Miniature Robots against Pulsatile Flow

open access: yesAdvanced Intelligent Systems, 2022
Long‐distance endovascular navigation of miniature robots under the guidance of medical imaging modalities is essential for microrobotic targeted delivery in the human body.
Lidong Yang   +4 more
doaj   +1 more source

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