We demonstrate that the attractive magnetic force acting on a rotating magnetic device (e.g., a magnetic microrobot), actuated using a rotating magnet dipole, can be converted into a lateral force by rotating the actuator dipole according to a specific open-loop trajectory. Results show rotating magnetic devices can be rolled and simultaneously pushed along a surface by the lateral force, resul...

Abstract The structure and dynamics of the solar corona is dominated by magnetic field. In most areas in forces are so dominant that all non-magnetic such as plasma pressure gradients gravity can be neglected lowest order. This model assumption called force-free field assumption, Lorentz force vanishes. obtained either vanishing electric currents (leading to potential fields) or co-aligned with...

We report the quantum calibration of a magnetic force microscope (MFM) by measuring two-dimensional stray-field distribution MFM tip using single nitrogen vacancy (NV) center in diamond. From measured and mechanical properties cantilever function is derived allowing to convert images calibrated maps. This approach overcomes limitations prior schemes allows nanoscale measurements field range ina...

PURPOSE To map the distribution of the magnetic force induced in the human head during magnetic resonance imaging (MRI) at 4 T for a large group of healthy volunteers. MATERIALS AND METHODS The magnetic field distribution in the head of 100 men and 18 women was mapped using phase mapping techniques. Statistical parametric mapping methods using a family-wise error (FWE) corrected threshold P <...

The purpose of this paper is to present a new hybrid analytical model (HAM) based on winding function theory (WFT) for electromagnetic analysis performance one typical unbalanced two-phase induction motor (UTPIM). Different indexes modeling such as distribution, slotting effect, and magnetic saturation can be accurately considered by using the proposed HAM. For obtaining technique, reformulated...

In the permanent magnet linear synchronous motor (PMLSM), force ripple is harmful, useless and disturbing. The force ripple is basically composed of two components: detent force and mutual force ripple. This force is influenced by the geometric parameters of the permanent magnet (PM) motors; such as width, thickness and length of the magnet poles, length and thickness of the rotor and stato...

Linguistic variables are very useful to evaluate alternatives in decision making problems because they provide a vocabulary in natural language rather than numbers. Some aggregation operators for linguistic variables force the use of a symmetric and uniformly distributed set of terms. The need to relax these conditions has recently been posited. This paper presents the induced unbalanced lingui...