Results 61 to 70 of about 87,664 (270)
Calibration‐Free GRAPE pTx Pulses for Homogeneous Spatial‐Selective Excitation at 7T
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Extend the universal pulse GRAPE formalism to pulses with a defined spectral response, and apply the concept to spatial selection. Methods We added Bloch simulations at several frequencies for each voxel to the pulse calculation to create universal spectrally‐selective GRAPE pulses.
Daniel Löwen +6 more
wiley +1 more source
IEEE Access, 2022 A detailed study of the influence of internal defect parameters on partial discharge (PD) induced ultrahigh frequency (UHF) signals propagated through an L section of metal encapsulated gas insulated switchgear (GIS) is presented.
Yugandhara Rao Yadam +2 more
doaj +1 more source
UHF diagnostic monitoring techniques for power transformers [PDF]
, 2004 This paper initially gives an introduction to ultra-high frequency (UHF) partial discharge monitoring techniques and their application to gas insulated substations.
Bennoch, C.J. +3 more
core
Hartree-Fock symmetry breaking around conical intersections
, 2018 We study the behavior of Hartree-Fock (HF) solutions in the vicinity of conical intersections. These are here understood as regions of a molecular potential energy surface characterized by degenerate or nearly-degenerate eigenfunctions with identical ...
Henderson, Thomas M. +2 more
core +1 more source
Fat/Water Separation at 7 T Using a 3D Radial Sequence With Quasi‐Continuous Echo Times
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To achieve a reliable fat/water separation (FWS) at 7 T using a new 3D radial sequence and reconstruction workflow with quasi‐continuous TE sampling. Methods A 3D radial density‐adapted sequence with quasi‐continuous TE sampling was developed for a 7 T whole‐body MRI system.
Matthias Rohe +9 more
wiley +1 more source
Rosmarinic Acid Protects the Testes of Rats against Cell Phone and Ultra-high Frequency Waves Induced Toxicity [PDF]
Iranian Journal of Medical SciencesBackground: Cell phone and Ultra-High Frequency (UHF) waves produce oxidative stress and cause testicular toxicity. This investigation was directed to evaluate the effectiveness of Rosmarinic Acid (RA) against oxidative stress caused by UHF radiation in ...
Jafar Fatahi Asl +3 more
doaj +1 more source
Phase diagram of the 1/3-filled extended Hubbard model on the Kagome lattice
, 2014 We study the phase diagram of the extended Hubbard model on the kagome lattice at 1/3 filling. By combining a configuration interaction approach to an unrestricted Hartree-Fock, we construct an effective hamiltonian which takes the correlations back on ...
Ferhat, Karim, Ralko, Arnaud
core +3 more sources
The Chemical Record, EarlyView.By selecting an appropriate matrix and irradiating the matrix containing a trace amount of solute at low temperatures, ionic or neutral radicals derived from the solute can be generated and trapped in the matrix. EPR spectroscopy of these samples yields highly detailed information on the radicals, inaccessible by other experimental techniques. Electron
Kenji Komaguchi
wiley +1 more source
Energies, 2016 Ultra-high-frequency (UHF) partial discharge (PD) online monitoring is an effective way to inspect potential faults and insulation defects in power transformers.
Jian Li +4 more
doaj +1 more source
Convergence of optimal control problems governed by second kind parabolic variational inequalities [PDF]
, 2013 We consider a family of optimal control problems where the control variable is given by a boundary condition of Neumann type. This family is governed by parabolic variational inequalities of the second kind. We prove the strong convergence of the optimal
Boukrouche, Mahdi, Tarzia, Domingo A.
core +7 more sources