Results 81 to 90 of about 3,140 (217)

Comparing superconducting and permanent magnets for magnetic refrigeration [PDF]

, 2016
We compare the cost of a high temperature superconducting (SC) tape-based solenoid with a permanent magnet (PM) Halbach cylinder for magnetic refrigeration.
Bahl, C. R. H., Bjørk, Rasmus, Nielsen, Kaspar Kirstein, Smith, Anders, Wulff, Anders Christian   +4 more
core   +2 more sources

Hybrid Quasi‐3D Multi‐Material Topology Optimisation of a Surface Permanent Magnet Motor With High Torque Density for Urban Air Mobility

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
This study proposes a hybrid quasi‐3D multi‐material topology optimisation method that integrates parameter optimisation for designing high torque‐density surface permanent magnet motors. The proposed method achieves 3D rotor optimisation without remeshing, enabling efficient exploration of shape and material distributions.
Haruki Kinoshita, Yoshitsugu Otomo, Takashi Abe   +2 more
wiley   +1 more source

Quantum gates using electronic and nuclear spins of Yb$^{+}$ in a magnetic field gradient

, 2011
An efficient scheme is proposed to carry out gate operations on an array of trapped Yb$^+$ ions, based on a previous proposal using both electronic and nuclear degrees of freedom in a magnetic field gradient. For this purpose we consider the Paschen-Back
A. Sørensen, B.E. Kane, C. Balzer, C. Ospelkaus, C. Wunderlich, C. Wunderlich, D. Kielpinski, D. Mc Hugh, D. Suter, F. Mintert, F. Mintert, F. Mintert, H. Wunderlich, J. Du, J. Fortagh, J. Home, J.I. Cirac, J.J. Bollinger, K. Halbach, K. L. Wang, L.M.K. Vandersypen, M. Cetina, M. Feng, M. Feng, M. Johanning, M. Johanning, M. Sagawa, M.V.G. Dutt, O. Cugat, P. Maunz, P. Neumann, R. Blatt, R. Folman, R. Huesmann, R. Ozeri, S. Groth, S.X. Wang, T. Hannemann, T. Tanaka, V. Jacques, W. Harneit, X. Peng   +41 more
core   +1 more source

Magnetoactive Metamaterials: A State‐of‐the‐Art Review

Advanced Engineering Materials, Volume 27, Issue 23, December 2025.
Magnetoactive metamaterials combine magnetoactive composites with architected metastructures to enable contactless, tunable control of mechanical, acoustic, and elastic properties. This review highlights recent advances in their design, fabrication, and applications in soft robotics, biomedical devices, and adaptive structures and outlines future ...
Seyyedmohammad Aghamiri, Ramin Sedaghati
wiley   +1 more source

Synthetic Antiferromagnetic Designer Nanodisks for High‐Performance Magnetic Separation

Advanced Healthcare Materials, Volume 14, Issue 31, December 8, 2025.
Micromagnetic‐modeling‐based design and scalable fabrication of synthetic antiferromagnet (SAF) magnetic disk particles (MDPs) using sputter deposition enable high‐performance magnetic separation. The SAF MDPs achieve high colloidal stability and magnetic responsiveness and enable efficient magnetic separation, outperforming conventional particles ...
Subas Scheibler, Sebastian Habermann, Alexander Gogos, Santiago Helbig, Lukas R. H. Gerken, Anna L. Neuer, Vera M. Kissling, Michal Krupinski, Mohammad Alinezhadfar, Rowena Crockett, Nico Kummer, Erik M. Mayr, Dieter Süss, Hans J. Hug, Inge K. Herrmann   +14 more
wiley   +1 more source

Analysis and Optimization of a Novel 2-D Magnet Array with Gaps and Staggers for a Moving-Magnet Planar Motor

Sensors, 2018
This paper presents a novel 2-D magnet array with gaps and staggers, which is especially suitable for magnetically levitated planar motor with moving magnets. The magnetic flux density distribution is derived by Fourier analysis and superposition.
Yang Wang, Xuedong Chen, Xin Luo, Lizhan Zeng   +3 more
doaj   +1 more source

Torque Production in a Halbach Machine [PDF]

The NASA John H. Glenn Research Center initiated the investigation of torque production in a Halbach machine for the Levitated Ducted Fan (LDF) Project to obtain empirical data in determining the feasibility of using a Halbach motor for the project.
Eichenberg, Dennis J., Gallo, Christopher A., Thompson, William K., Vrnak, Daniel R.   +3 more
core   +1 more source

A Pill That Prints‐An Ingestible Bioprinter for Non‐Invasive Structured Bioink Deposition

Advanced Science, Volume 12, Issue 46, December 11, 2025.
A first‐of‐a‐kind swallowable bioprinter performs in‐situ bioink deposition and patterning directly over disease sites without tethers, electronics, or invasive surgery. Combining magnetic guidance with near‐infrared triggering enables functionality within a small footprint.
Sanjay Manoharan, Vivek Subramanian
wiley   +1 more source

Analytic solution of field distribution and demagnetization function of ideal hollow cylindrical field source

AIP Advances, 2017
The Halbach type hollow cylindrical permanent magnet array (HCPMA) is a volume compact and energy conserved field source, which have attracted intense interests in many practical applications.
Xiaonong Xu, Dingwei Lu, Xibin Xu, Yang Yu, Min Gu   +4 more
doaj   +1 more source

A fully coreless Multi-Stator Multi-Rotor (MSMR) AFPM generator with combination of conventional and Halbach magnet arrays

Alexandria Engineering Journal, 2020
An axial flux permanent magnet (AFPM) generator is known to be a good candidate for both low and high-speed application. In this paper, a new design of fully coreless multi-stator multi-rotor (MSMR) AFPM generator has been presented with conventional and
Asiful Habib, Hang Seng Che, Nasrudin Abd Rahim, Mahdi Tousizadeh, Erwan Sulaiman   +4 more
doaj   +1 more source