-
21
A Reconstruction Approach for Imaging in 3D Cone Beam Vector Field Tomography
Published 2008-01-01“…Since the vectorial cone beam transform of any gradient vector field with compact support is identically equal to zero, we can only hope to reconstruct the solenoidal part of an arbitrary vector field. In this paper we will at first summarize important properties of the cone beam transform for three-dimensional solenoidal vector fields and then propose a solution approach based on the method of approximate inverse. …”
Get full text
Article -
22
Reconstructing a Helical Magnetic Field in the Solar Corona using Lagrange Multiplier Technique
Published 2023-09-01“…We aim to reconstruct a nonlinear force-free magnetic field by minimizing the global departure of an initial field from a force-free and solenoidal state in the presence of helicity to obtain an appropriate representation of the magnetic field compatible with the solar coronal condition. …”
Get full text
Article -
23
Cleanroom assembly of the IFMIF SRF Linac
Published 2024-01-01“…Started in March 2019, the assembly was paused a first time to solve technical problems on its solenoids. Resumed in August 2022, the assembly was paused a second time after the completion of the cavity/coupler assembly to fix additional issues. …”
Get full text
Article -
24
Protótipo de um sistema para supervisão e controle do fluido de perfuração em plataformas onshore
Published 2019-04-01“…Propõe-se a elaboração dos circuitos elétricos da bomba e das válvulas solenoides, mostrando o seu funcionamento, a construção do software de supervisão e a programação do controlador lógico programável (CLP) para comutar com o sinótico de controle; apresenta-se as questões relacionadas à supervisão e controle deste processo numa planta didática, bem como o controle dos equipamentos e fluxo do fluido de perfuração. …”
Get full text
Article -
25
Additively-Manufactured, Magnetically Controlled, Frequency and Polarization Reconfigurable Phased Array Antenna
Published 2025-01-01“…Depending on the magnitude and polarity of the applied magnetic field (solenoids) to the patches, the array antenna can operate in a linearly polarized (LP) mode at 7.2 GHz or in dual circularly polarized (CP) modes in two continuously tunable frequency bands, 5.9–6.5 GHz and 7.6–7.95 GHz. …”
Get full text
Article -
26
Giant and flexible toroidal circular dichroism from planar chiral metasurface
Published 2025-01-01“…However, as toroidal dipoles are typically represented by solenoidal currents circulating on a three-dimensional (3D) torus, toroidal circular dichroism is usually observed in 3D intricate microstructures. …”
Get full text
Article