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A review of high magnetic moment thin films for microscale and nanotechnology applications Open
Here, the creation of large magnetic fields is a necessary component in many technologies, ranging from magnetic resonance imaging, electric motors and generators, and magnetic hard disk drives in information storage. This is typically don…
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Design of an Electromagnetic Setup for Independent Three-Dimensional Control of Pairs of Identical and Nonidentical Microrobots Open
Independent control of microrobots is a cardinal challenge for manipulation at micro/nano scale. In this paper, we design and assemble an electromagnetic setup to overcome some of the major obstacles in the independent control of microrobo…
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Ultra-High Field NMR and MRI—The Role of Magnet Technology to Increase Sensitivity and Specificity Open
“History, of course, is difficult to write, if for no other reason, than that it has so many players and so many authors.” – P. J. Keating (former Australian Prime Minister)Starting with post-war developments in nuclear magnetic resonance …
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Magnetically Actuated Fiber‐Based Soft Robots Open
Broad adoption of magnetic soft robotics is hampered by the sophisticated field paradigms for their manipulation and the complexities in controlling multiple devices. Furthermore, high‐throughput fabrication of such devices across spatial …
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Negative and positive stiffness in auxetic magneto-mechanical metamaterials Open
This work discusses the concept of allowing the control of the stiffness of a particular class of re-entrant auxetic magneto-mechanical metamaterials through the introduction of magnets to the system. It is shown, through experimental test…
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Design and Control of Levitation and Guidance Systems for a Semi-High-Speed Maglev Train Open
Research on Maglev (Magnetic Levitation) train is currently being conducted in Korea, concerning Urban Transit (110 km/h of maximum speed), semi-high-speed (200 km/h of maximum speed), and high-speed (550 km/h of maximum speed) trains. Thi…
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A Flexible Magnetically Controlled Continuum Robot Steering in the Enlarged Effective Workspace with Constraints for Retrograde Intrarenal Surgery Open
Flexible magnetic continuum robots (MCRs) can be fabricated in small dimensions with great manipulability as their tips can deflect under fields, without the need for complicated mechanical structures to govern control, and it helps improv…
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Optimal Inverse Design of Magnetic Field Profiles in a Magnetically Shielded Cylinder Open
Magnetic shields that use both active and passive components to enable the\ngeneration of a tailored low-field environment are required for many\napplications in science, engineering, and medical imaging. Until now, accurate\nfield nulling…
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Interaction between two magnetic dipoles in a uniform magnetic field Open
A new formula for the interaction force between two magnetic dipoles in a uniform magnetic field is derived taking their mutual magnetic interaction into consideration and used to simulate their relative motion. Results show that when the …
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Modeling Electromagnetic Navigation Systems Open
ISSN:1552-3098
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Magnetically Steered Robotic Insertion of Cochlear-Implant Electrode Arrays: System Integration and First-In-Cadaver Results Open
Cochlear-implant electrode arrays (EAs) must be inserted accurately and precisely to avoid damaging the delicate anatomical structures of the inner ear. It has previously been shown on the benchtop that using magnetic fields to steer magne…
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Combination Radial-Axial Magnetic Bearing Open
The design and application of a patented active actuator design that combines the radial and axial actuator into one combination radial-axial actuator is presented. The theory of operation of the actuator is defined and magnetic finite ele…
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Experimental demonstration of a laser proton accelerator with accurate beam control through image-relaying transport Open
A compact laser plasma accelerator (CLAPA) that can stably produce and transport proton ions with different energies less than 10 MeV, <1% energy spread, several to tens of pC charge, is demonstrated. The high current proton beam with cont…
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Tesla-Scale Terahertz Magnetic Impulses Open
Measuring the magnetic response of matter relies acutely on the degree to which a magnetic field source’s amplitude, spatial, and temporal character can be tailored. Magnetic fields are inseparable from light-matter interaction, yet due to…
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Gripping characteristics of an electromagnetically activated magnetorheological fluid-based gripper Open
The design and test of a magnetorheological fluid (MRF)-based universal gripper (MR gripper) are presented in this study. The MR gripper was developed to have a simple design, but with the ability to produce reliable gripping and handling …
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Study on Magnetic Control Systems of Micro-Robots Open
Magnetic control systems of micro-robots have recently blossomed as one of the most thrilling areas in the field of medical treatment. For the sake of learning how to apply relevant technologies in medical services, we systematically revie…
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A prototype of an energy-efficient MAGLEV train: A step towards cleaner train transport Open
The magnetic levitation (MAGLEV) train uses magnetic field to suspend, guide, and propel vehicle onto the track. The MAGLEV train provides a sustainable and cleaner solution for train transportation by significantly reducing the energy usa…
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New frontiers in magnetic refrigeration with high oscillation energy-efficient electromagnets Open
This article reports on the novel resistive electromagnetic field source with the magnetic energy recovery, which enables the use of the static magnetocaloric regenerator. Most of the existing prototype magnetocaloric devices that operate …
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Influence of magnetic boundary conditions on the quantitative modelling of magnetorheological elastomers Open
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Dynamics and optimal control of an electromagnetically actuated cantilever pipe conveying fluid Open
This paper deals with the problem of applying electromagnetic devices of the motional type to improve the dynamic stability of a pipe conveying air. When the flow velocity reaches a critical value, the steady equilibrium position becomes u…
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Eddy Current Separation of Nonferrous Metals Using a Variable-Frequency Electromagnet Open
We present a novel technique for sorting nonferrous metal scrap by using eddy current separation. However, rather than vary the magnetic field with a spinning rotary drum, our system utilizes a fixed electromagnet excited by an alternating…
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On the Workspace of Electromagnetic Navigation Systems Open
ISSN:1552-3098
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Investigation of Magnetic Nanoparticle Motion under a Gradient Magnetic Field by an Electromagnet Open
Finite element numerical simulations were carried out in 2D geometry to calculate the magnetic force on magnetic nanoparticles under a specially fabricated electromagnet. The particle motion was modeled by a system of ordinary differential…
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Ultralow-field magnetocaloric materials for compact magnetic refrigeration Open
Magnetic refrigeration around the liquid-helium temperature plays a critical role in many technological sectors. Even if gallium gadolinium garnet (GGG) has been regarded as the benchmark, its application is highly limited by the small mag…
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Model-based optimized steering and focusing of local magnetic particle concentrations for targeted drug delivery Open
Magnetic drug targeting (MDT) is an application in the field of targeted drug delivery in which magnetic (nano)particles act as drug carriers. The particles can be steered toward specific regions in the human body by adapting the currents …
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Untethered Octopus‐Inspired Millirobot Actuated by Regular Tetrahedron Arranged Magnetic Field Open
Flexible magnetic small‐scale robots (overall dimensions smaller than 1 cm) can use a patterned magnetization profile to noninvasively access a confined, enclosed liquid environment and therefore achieve applications in object manipulation…
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Redundant Electromagnetic Control of an Endoscopic Magnetic Capsule Driven by Multiple Electromagnets Configuration Open
In this article, we present a novel stationary electromagnetic actuation system (EMS) and a redundant magnetic field control approach that can enhance the magnetic actuation ability for a capsule endoscope. The EMS configured with multiple…
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Modeling of finishing force and torque in ultrasonic-assisted magnetic abrasive finishing process Open
A new finishing technique called ultrasonic-assisted magnetic abrasive finishing integrates ultrasonic vibration with magnetic abrasive finishing process for finishing of workpiece surface more efficiently as compared to magnetic abrasive …
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Real-Time Observation and Analysis of Magnetomechanical Actuation of Magnetic Nanoparticles in Cells Open
The origin of cell death in the magnetomechanical actuation of cells induced by magnetic nanoparticle motion under low-frequency magnetic fields is still elusive. Here, a miniaturized electromagnet fitted under a confocal microscope is use…
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Resonance mode detuning in rotor systems employing active and passive magnetic bearings with controlled stiffness Open
In the paper, the investigator offered a method of reducing the amplitude of vibrations of turbo machinery rotors with passive and active magnetic bearings in resonances and resonance zones corresponding to one of the critical speeds rangi…