Results 31 to 40 of about 5,574,042 (346)

Drenagem interna e lixiviação de nitrato em um latossolo sob sucessão milho-braquiária-milho, com diferentes doses de nitrogênio Internal drainage and nitrate leaching in a typic hapludox under a maize-brachiaria-maize succession at different nitrogen fertilizer rates

Revista Brasileira de Ciência do Solo, 2009
A adubação nitrogenada ideal deve ser definida para satisfazer a necessidade da cultura, mas com o mínimo de risco ao ambiente. Para isso, é necessário que a recomendação da adubação nitrogenada seja a mais exata possível.
Flávia Carvalho Silva Fernandes, Paulo Leonel Libardi   +1 more
doaj   +1 more source

Curvature-related eddy-current losses in laminated axial flux machine cores [PDF]

, 2005
In this paper we present an axiperiodic quasi-static model to evaluate the magnetic flux density distribution and power loss due to curvature related radial flux in the laminated core of axial flux machines.
Ahfock, Tony L., Hewitt, Andrew
core   +2 more sources

Investigation of an Ironless Permanent Magnet Linear Synchronous Motor with Cooling System

Applied Sciences, 2016
In this paper, a novel ironless linear synchronous motor with a cooling system is proposed. Firstly, the topology of this ironless linear synchronous motor with a cooling system is introduced.
Lu Zhang, Baoquan Kou, Yinxi Jin, Yusheng Chen, Yanjie Liu   +4 more
doaj   +1 more source

Residual Flux Density Measurement Method of Single-Phase Transformer Core Based on Time Constant

IEEE Access, 2020
Residual flux density in the single-phase transformer core can dramatically increase inrush current when the transformer is energized. To reduce inrush current, it is necessary to study residual flux density measurement.
Cailing Huo, Shipu Wu, Yiming Yang, Chengcheng Liu, Youhua Wang   +4 more
doaj   +1 more source

Influence of vortex-vortex interaction on critical currents across low-angle grain boundaries in YBa2Cu3O7-delta thin films

, 2000
Low-angle grain boundaries with misorientation angles theta < 5 degrees in optimally doped thin films of YBCO are investigated by magnetooptical imaging.
A. A. Polyanskii, A. Gurevich, A. Gurevich, A. Gurevich, A. P. Sutton, A. Pruymboom, B. H. Moeckly, Ch. Jooss, Ch. Jooss, D. Dimos, D. N. Basov, E. H. Brandt, H. Hilgenkamp, H. Hilgenkamp, H. Kronmüller, J. A. Alarco, J. Albrecht, J. B. Hirth, J. Halbritter, J. L. Tallon, J. M. Huijbregtse, J. Mannhart, K. E. Gray, L. A. Dorosinskii, M. F. Chisholm, N. F. Heinig, P. G. de Gennes, R. Gross, R. Gross, R. Wijngaarden, S. Leonhardt, Th. Schuster, Z. G. Ivanov   +32 more
core   +1 more source

Pulsed-field magnetization of drilled bulk high-temperature superconductors: flux front propagation in the volume and on the surface [PDF]

, 2009
We present a method for characterizing the propagation of the magnetic flux in an artificially drilled bulk high-temperature superconductor (HTS) during a pulsed-field magnetization.
B Vanderheyden, Chaud X, Denis S, E Haanappel, Gawalek W, Gregory P Lousberg, Haindl S, Ikuta H, J-F Fagnard, Lousberg G P, Lousberg G P, Lousberg G P, M Ausloos, Ma G T, Meslin S, Nariki S, Noudem J G, Oswald B, Ph Vanderbemden, X Chaud   +19 more
core   +5 more sources

energy flux density [PDF]

, 2014
Citation: 'energy flux density' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.E02106 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

magnetic flux density

, 2014
Citation: 'magnetic flux density' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.M03685 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
  +4 more sources

Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control [PDF]

, 2002
The airgap flux density distribution, flux density loci in the stator core, and the associated iron loss in two topologies of brushless AC motor, having a surface-mounted magnet rotor and an interior-mounted magnet rotor, respectively, are investigated ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
core   +1 more source

Mitigating the Inrush Current of V/V Transformers Using Railway Conditioners

IEEE Access
Inrush current is high-magnitude current drawn by power transformers upon energization. The severity of inrush current depends on factors such as the transformer’s residual flux and the voltage phase angle at the energization instant.
Amir Aghazadeh, Ehsan Hajipour, Kang Li, Sadegh Azizi   +3 more
doaj   +1 more source