Results 51 to 60 of about 767,782 (193)

Machine learning reveals orbital interaction in materials

Science and Technology of Advanced Materials, 2017
We propose a novel representation of materials named an ‘orbital-field matrix (OFM)’, which is based on the distribution of valence shell electrons. We demonstrate that this new representation can be highly useful in mining material data.
Tien Lam Pham, Hiori Kino, Kiyoyuki Terakura, Takashi Miyake, Koji Tsuda, Ichigaku Takigawa, Hieu Chi Dam   +6 more
doaj   +1 more source

Thermally assisted magnetization reversal in the presence of a spin-transfer torque

, 2004
We propose a generalized stochastic Landau-Lifshitz equation and its corresponding Fokker-Planck equation for the magnetization dynamics in the presence of spin transfer torques. Since the spin transfer torque can pump a magnetic energy into the magnetic
A. Fábián, B. Özyilmaz, E.B. Myers, H.A. Kramer, J. Kurkijärvi, J. Slonczewski, J. Slonczewski, J.A. Katine, J.E. Wegrowe, J.J.M. Ruigrok, J.L. García-Palacios, J.M. Daughton, J.Z. Sun, L. Berger, L. Berger, R.H. Koch, R.S. Maier, S. Urazhdin, S. Urazhdin, S. Zhang, W.F. Brown, Ya.B. Bazaliy, Z. Li, Z. Li   +23 more
core   +1 more source

Indoor Mapping of Magnetic Fields Using UAV Equipped with Fluxgate Magnetometer

Sensors, 2021
Unmanned aerial vehicles (UAVs) are used nowadays in a wide range of applications, including monitoring, mapping, or surveying tasks, involving magnetic field mapping, mainly for geological and geophysical purposes.
Pavol Lipovský, Katarína Draganová, Jozef Novotňák, Zoltán Szőke, Martin Fiľko   +4 more
doaj   +1 more source

Primordial magnetic fields and the HI signal from the epoch of reionization

, 2009
The implication of primordial magnetic-field-induced structure formation for the HI signal from the epoch of reionization is studied. Using semi-analytic models, we compute both the density and ionization inhomogeneities in this scenario.
C. Caprini, D. Paoletti, D. Scott, D.R.G. Schleicher, HST collaboration, J.D. Bowman, Kandaswamy Subramanian, M. Zaldarriaga, N.Y. Gnedin, P. Madau, R. Barkana, R. Barkana, R.H. Becker ., R.L. White, S. Furlanetto, S.G. Djorgovski, S.K. Sethi, Shiv K Sethi, WMAP collaboration, X. Fan, Z. Haiman, Z. Haiman, Z. Haiman   +22 more
core   +1 more source

Integrated Planar Transformer for High-Voltage-Ratio LLC DCX With High Current and Ultra-Low Voltage Output

IEEE Open Journal of Power Electronics
The 48 V voltage regulation modules (VRM) for microprocessors feature a high voltage transformation ratio, large current, and ultra-low voltage output. The solutions based on high-turns-ratio transformers are the most popular ones.
Kangping Wang, Yuhang Ning, Hongchang Li, Xu Yang   +3 more
doaj   +1 more source

Magnetic charge quantization from SYM considerations

, 2019
An intersecting D3-D3' system contains magnetic monopole solutions due to D- strings stretched between two branes. These magnetic charges satisfy the usual Dirac quantization relation.
Porforough, Milad
core   +1 more source

Upper limits to the magnetic field in central stars of planetary nebulae

, 2014
More than about twenty central stars of planetary nebulae (CSPN) have been observed spectropolarimetrically, yet no clear, unambiguous signal of the presence of a magnetic field in these objects has been found.
Corradi, R. L. M., Gonzalez, M. J. Martinez, Leone, F., Ramos, A. Asensio, Sainz, R. Manso   +4 more
core   +1 more source

Stackless Onboard Coil for Dynamic Wireless Power Transfer

IEEE Open Journal of Power Electronics
Dynamic wireless power transfer (DWPT) technology is emerging as a key enabler for in-motion charging of electric vehicles (EVs), allowing continuous energy transfer without the need for dedicated charging stops.
Shuntaro Inoue, Koki Sasai, Norika Miura, Koji Shigeuchi, Masato Maemura, Toshiya Hashimoto, Hayato Sumiya, Masaya Takahashi, Eisuke Takahashi, Nobuhisa Yamaguchi   +9 more
doaj   +1 more source

A highly stable atomic vector magnetometer based on free spin precession

, 2015
We present a magnetometer based on optically pumped Cs atoms that measures the magnitude and direction of a 1 $\mu$T magnetic field. Multiple circularly polarized laser beams were used to probe the free spin precession of the Cs atoms.
Afach, S., Ban, G., Bison, G., Bodek, K., Chowdhuri, Z., Grujic, Z. D., Hayen, L., Helaine, V., Kasprzak, M., Kirch, K., Knowles, P., Koch, H. -C., Komposch, S., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemiere, Y., Mtchedlishvili, A., Naviliat-Cuncic, O., Piegsa, F. M., Prashanth, P. N., Quemener, G., Rawlik, M., Ries, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Severjins, N., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G.   +33 more
core   +3 more sources

A Comprehensive Study of Steady-State Modeling Techniques for Magnetic Coupling in DC/DC Converters

IEEE Access
Magnetic coupling is widely employed in multiphase interleaved DC/DC converters owing to its inherent advantages of current ripple reduction and DC flux cancellation.
Xiao Yu, Jens Friebe, Peter Zacharias
doaj   +1 more source