Recently, tape wound cores due to their excellent magnetic properties, are widely used in different types of transformers. Performance prediction of these transformers needs an accurate model with ability to determine flux distribution within the core and magnetic loss. Spiral structure of tape wound cores affects the flux distribution and always cause complication of analysis. In this paper, a...

ABSTRACT We demonstrate a droplet-based microfluidic device in which in-droplet magnetic bead separation is performed in continuous-flow. Two droplets containing different solution for the magnetic bead separation are generated in pair-wise manner. Sequential fusion of droplets occurs by a geometrical structure. The magnetic beads are deflected by externally applied magnetic force from one side...

This paper presents a refined centrifugo-magnetophoretic platform enabling 2-dimensional separation of cancer cells from background cells [1]. The multi-force, stopped-flow separation combines centrifugal sedimentation with lateral magnetic deflection. In this way, hydrodynamic stresses and variations typical in pressure-driven microfluidic platforms [2][3] are minimized, and collisions between...

Aims. We study the magnetic field structure, strength, and energy density in the Scd galaxy M33. Methods. Using the linearly polarized intensity and polarization angle data at 3.6, 6.2 and 20 cm, we determine variations of Faraday rotation and depolarization across M33. We fit a 3-D model of the regular magnetic field to the observed azimuthal distribution of polarization angles. We also analyz...

Observations at high spectral and temporal resolution are presented of the dwarf nova EX Dra in outburst. The disk seen in the He i line reconstructed by Doppler tomography shows a clear two-armed spiral pattern pointing to spiral shocks in the disk. The Balmer and He ii maps also give evidence for the presence of spirals. The eclipse as seen in the red continuum indicates a disk radius of 0.31...

Observations at high spectral and temporal resolution are presented of the dwarf nova EX Dra in outburst. The disk seen in the He i line reconstructed by Doppler tomography shows a clear two-armed spiral pattern pointing to spiral shocks in the disk. The Balmer and He ii maps also give evidence for the presence of spirals. The eclipse as seen in the red continuum indicates a disk radius of 0.31...

Magnetic fields in spiral galaxies have strengths of order few 10−6G, and are coherent on scales of several kpc [1]. In several disk galaxies, like M51 and NGC 6946, they are also highly correlated (or anti-correlated) with the optical spiral arms. How do such ordered, large-scale fields arise? One possibility is dynamo amplification of a weak but nonzero seed field ∼ 10−19 − 10−23G, provided t...

The strength of the total magnetic field in our Milky Way from radio Zeeman and synchrotron measurements is about 6 μG near the Sun and several mG in dense clouds, pulsar wind nebulae, and filaments near the Galactic Center. Diffuse polarized radio emission and Faraday rotation of the polarized emission from pulsars and background sources show many small-scale magnetic features, but the overall...

The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim that the shape of a galaxy’s rotation curve strongly depends on its location within the cluster, and thus presumably on the strength of the local intracluster medium and on...